KR20070102439A - Color rendering correction device and method of lighting device - Google Patents

Abstract

The color rendering correction apparatus of the illumination device is an illumination device having an auxiliary light source for generating illumination corresponding to the wavelength of each channel of the main light source and the visible light region, and measuring the illumination of the main light source to measure the spectral distribution of each channel It consists of a remote controller that measures and analyzes the measured spectral distribution to generate auxiliary light source control data for the channel with low color rendering, and the auxiliary light sources to which the lighting device corresponds to the auxiliary light source control data by the auxiliary light source control data of the remote controller. By adjusting the color rendering properties of the main light source.

Description

Apparatus and method for correcting color rendering of lighting devices {DEVICE AND METHOD FOR CORRECTING COLOR RENDERING OF LIGHTING DEVICE}

1A to 1D are views illustrating color rendering of natural light in a visible light region according to an exemplary embodiment of the present invention.

2A is a diagram illustrating a spectral distribution between natural light and artificial light sources, and FIGS. 2B to 2H illustrate an example of improving color rendering properties by adjusting color rendering properties of a primary light source in a visible light region as an auxiliary light source according to an embodiment of the present invention. Drawing

3 is a diagram illustrating a configuration of an illumination system according to an embodiment of the present invention.

4 is a diagram illustrating a configuration of the lighting apparatus of FIG. 3.

5A to 5D are diagrams showing examples of the configuration of the main light source and the auxiliary light source of FIG.

6 is a diagram showing the configuration of the remote controller of FIG.

7 is a flowchart illustrating a procedure for improving color rendering of a main light source in a remote controller according to an embodiment of the present invention.

8 is a flowchart showing a procedure for improving the color rendering of the main light source in the lighting apparatus in the embodiment of the present invention;

The present invention relates to a lighting apparatus and method, and more particularly to a lighting apparatus and method capable of correcting the color rendering.

In general, the lighting device uses an artificial light source to perform the lighting function. That is, in the case of indoor or nighttime, since sunlight cannot be used, various types of artificial light sources are used to perform lighting functions. However, the lighting device using the artificial light source is less color rendering than the sunlight can not perform a variety of lighting. For example, when the incandescent lamp is used as a light source of the lighting device, the color of the object is highlighted with red or yellow color, and when the fluorescent lamp is used, the blue color is highlighted. That is, lighting devices using incandescent lamps or fluorescent lamps as light sources are deteriorated in color rendering and cannot accurately detect the color of objects.

In addition, in the case of using the lighting device as described above, fixed lighting is performed according to the characteristics of the light source, and thus the user cannot perform the desired lighting. That is, the light source is a fixed illumination, and thus can not be illuminated with the color rendering and color temperature desired by the user, such as sunlight.

Accordingly, an object of the present invention is to provide an illumination device having auxiliary light sources for generating illumination corresponding to the wavelengths of the main light source and the visible light region, and to measure the spectral distribution of each channel by measuring the illumination of the main light source. And controlling the auxiliary light sources corresponding to the illumination device by the auxiliary light source control data of the remote controller by including a remote controller which analyzes the measured spectral distribution to generate auxiliary light source control data of a channel having low color rendering. An apparatus and method for driving color data to adjust the color rendering of the main light source is provided.

Another object of the present invention is to measure the spectral distribution of the illumination of the illumination device, to generate a secondary light source control data for adjusting the color rendering by analyzing the measured spectral distribution with the color rendering reference data to control the auxiliary light source of the lighting device It is to provide an apparatus and method for correcting the color rendering of the main light source.

Another object of the present invention is to measure the spectral distribution of the light to be illuminated in the corresponding illumination mode when selecting the illumination mode of the illumination device, and compare the measured spectral distribution with the set color rendering reference data of the corresponding illumination mode, the color rendering properties The present invention provides a device and a method for generating a corrected auxiliary light source control data for adjustment, and an illumination device to correct the color rendering property of the main light source by driving the auxiliary light source by the corrected auxiliary light source control data.

DETAILED DESCRIPTION A detailed description of preferred embodiments of the present invention will now be described with reference to the accompanying drawings. It should be noted that the same components in the figures represent the same numerals wherever possible.

In the following description, specific details such as sunrise, sunset, color temperature in daylight mode, wavelength of light, and the like which are intended to be illuminated in the lighting apparatus according to the embodiment of the present invention are shown to provide a more comprehensive understanding of the present invention. have. It will be apparent to one of ordinary skill in the art that the present invention may be readily practiced without these specific details and also by their modifications.

In the terms described below, "channel" means the region of each wavelength in the visible region. For example, the channel may refer to a wavelength range of violet, indigo, blue, green, yellow, orange, and red in the visible light region. "Primary light source" is a light source for performing the main illumination of the lighting device is an artificial light source. The "auxiliary light source" may be provided as many as the number of each channel of the visible light region, and means a light source for correcting the color rendering of the main light source.

Light is energy that can stimulate the human optic nerve, which means visible light. Such visible light is a region (about 300 nm to 700 nm) detected only by the human eye, and sunlight includes infrared rays, ultraviolet rays, and the like in addition to the visible light. The visible light has a wavelength of about 300 nm to 700 nm as shown in FIG. 1A, and has seven colors ranging from short wavelength purple to long wavelength red. Daylight is a white light, and may be a combination of direct sunlight from the sun and sky light coming down from the sky. In this case, the color temperature is recognized as white light by combining the high blue sky light and the red light of the sun. Therefore, the main light is a complex light evenly distributed over the entire region of the visible light, as shown in Figure 1b. That is, the main light has a form in which all wavelengths are mixed with light in which all colors are uniformly formed as shown in FIG. 1B in the spectrum of visible light as shown in FIG. 1A. Therefore, when the three primary colors are mixed in the same ratio, the light appears as white light, and when the balance is broken, the specific color becomes prominent. For example, at sunset and sunrise, the color of the sun shines, the color temperature decreases, and the red color appears strongly. In this case, the color distribution of the visible light has a shape as shown in FIG. 1C. In addition, the color of the sun that is produced just before the sun is dark blue energy, in this case the visible light color distribution has the form as shown in FIG.

However, compared to the natural light as described above, the artificial light source is set to a specific color temperature so that a specific color appears to dominate. Representative of the artificial light source may be a fluorescent lamp and an incandescent lamp. Fluorescent lamps, for example, have a color temperature of about 4000K, which is generally greenish, and there are many different types of colors. Household incandescent lamps also have a color temperature of approximately 2800K, which is usually reddish. 2A is a diagram illustrating a spectral distribution between natural light and artificial light sources. 2A shows spectral distributions of artificial light sources such as incandescent lamps, white fluorescent lamps, LED lamps, daylight fluorescent lamps, metal halide lamps, and three wavelength fluorescent lamps based on natural light 10. In FIG. 1A, it can be seen that natural light has good color rendering since the energy of all wavelengths is uniformly distributed in the visible light region. However, it can be seen that artificial light sources have a strong energy distribution for wavelengths of a specific color and a weak energy distribution for wavelengths of a specific color, so that color rendering is not good. Therefore, it is preferable to improve the color rendering property of the artificial light source having the above characteristics to be similar to natural light.

In the embodiment of the present invention, the light source of the lighting apparatus is configured with a main light source and an auxiliary light source, and the color rendering of the main light source is corrected using the auxiliary light source. In this case, the auxiliary light source preferably includes all the light sources of colors that can be expressed in the visible light band as shown in FIG. The auxiliary light source may include light sources capable of illuminating three primary color signals among the color signals of the visible light, and correct the color rendering of the main light source using these light sources.

2B to 2H are diagrams for describing a method of correcting color rendering properties of a main light source according to an exemplary embodiment of the present invention. 2B is a diagram showing an example of a spectral distribution of an artificial light source. 2C and 2D illustrate a method of generating light similar to daylight of sunlight by correcting color rendering properties having the same spectral distribution characteristics as in FIG. 2B. 2E and 2F illustrate a method of generating light similar to sunlight before sunrise (or after sunset) by correcting color rendering properties having the same spectral distribution characteristics as in FIG. 2B. 2G and 2H illustrate a method of generating light similar to sunlight after sunrise (or before sunset) by correcting color rendering properties having the same spectral distribution characteristics as in FIG. 2B.

2B to 2D, the primary light of sunlight has a characteristic in that energy of all wavelengths of visible light is evenly distributed as described above. Accordingly, in the spectral distribution characteristic of the main light source as shown in FIG. 2B, an illumination control signal of the auxiliary light source that corrects the energy of light having a small wavelength energy as shown in FIG. 2C is generated. Then, the controller of the lighting apparatus outputs the illumination control signal of the auxiliary light source as shown in FIG. 2C when controlling the illumination of the main light source. Then, the light illuminated by the illumination device is compensated for the characteristic of the discontinuous color of the main light source by the auxiliary light source as shown in FIG. 2d, and thus the light illuminated by the illumination device has the color rendering of daylight It generates light similar to

When the illumination of the main light source as shown in FIG. 2B is corrected through the illumination control of the auxiliary light source as shown in FIGS. 2E and 2G in the same manner as described above, the color of the discontinuous color of the main light source is corrected by the correction of the auxiliary light source. This enhanced illumination is possible with natural light before and after sunrise (or after or before sunset).

The color rendering correction apparatus of the lighting apparatus according to an embodiment of the present invention is an illumination device having an auxiliary light source for generating illumination corresponding to the wavelength of each channel of the main light source and the visible light region, and measuring the illumination of the main light source And a remote controller that measures the spectral distribution of each channel and analyzes the measured spectral distribution to generate auxiliary light source control data of a channel having low color rendering property, and the illumination device corresponds to the auxiliary light source control data of the remote controller. The auxiliary light sources are driven by the auxiliary light source control data to adjust the color rendering of the main light source.

The remote controller compares the optical measurement unit for measuring the spectral distribution of the illumination of the illumination device, a memory for storing the color rendering reference data of the illumination device, and the spectral distribution measured at the optical measurement unit with the color rendering reference data. And a controller for analyzing and generating auxiliary light source control data for adjusting color rendering.

The lighting device includes a main light source, a number corresponding to each channel of the visible light region, auxiliary light sources for auxiliary lighting of each channel, a power control command and an auxiliary light source output from the remote controller. A control unit for outputting power control signals of the main light source and the auxiliary light source by control data, a main light source driver for driving illumination of the main light source by the main light source power control signal, and a channel corresponding to the number of the auxiliary light sources The driving unit corresponding to the auxiliary light source control signal is provided to include an auxiliary light source driver for driving the illumination of the auxiliary light source.

Here, the auxiliary light source is composed of violet, indigo blue, blue, green, yellow, orange and red light sources in the visible light region, and the auxiliary light source driver is composed of seven drivers corresponding to the number of the respective channels, and the main light source The driving unit includes a dimming control unit, and the dimming control of the illumination of the main light source by the control unit.

In addition, the remote controller and the lighting device is provided with a wireless communication unit, the wireless communication unit of the remote controller converts the control data of the main light source and the auxiliary light source output from the control unit of the remote controller and transmits the wireless communication data, the illumination It is assumed that the wireless communication unit of the device receives wireless communication data transmitted from the remote controller and outputs the wireless communication data to the wireless communication unit of the lighting device, and the wireless communication units use a Zigbee communication method.

The remote controller may further include an optical measuring unit measuring a spectral distribution of illumination of the lighting device, dimming control data of a main light source according to at least two lighting modes, and color rendering reference data of the lighting device according to the lighting modes. And a control data of the main and auxiliary light sources of the corresponding illumination mode in the memory when the illumination mode is selected, and comparing the spectroscopic distribution measured by the optical measuring unit with the color rendering reference data to adjust the color rendering properties. It may include a control unit for generating a corrected auxiliary light source control data for.

The lighting apparatus is provided with a main light source, a number corresponding to each channel of the visible light region, auxiliary light sources for auxiliary lighting of each channel, and control data of the main light source auxiliary light source output from the remote controller. A control unit for dimming the main light source and outputting power control signals of the auxiliary light source, a main light source driver for dimming and controlling the illumination of the main light source by the main light source power control signal, and a number of the auxiliary light sources; A corresponding number may be provided, and the driving units corresponding to the auxiliary light source control signal may be driven to drive the auxiliary light source driving unit to drive the illumination of the auxiliary light source.

In addition, the method for correcting the color rendering of the lighting apparatus according to an embodiment of the present invention is a process of driving the main light source and the auxiliary light source to the set control data and illuminates when the lighting on request, and the reference control data set the color rendering by measuring the spectral distribution of the illumination And a process of generating control data of an auxiliary light source of a channel requiring color rendering adjustment, and controlling the auxiliary light source according to the auxiliary light source control data to correct color rendering of illumination. May be light sources for generating illumination corresponding to the wavelength of each channel of the visible light region.

The generating control data of the auxiliary light source may include comparing the measured spectral distribution result with stored reference control data of the auxiliary light source, and changing control data of channels having abnormal color rendering according to the comparison result. And outputting control data of the changed auxiliary light source. The auxiliary light source includes light sources that illuminate the violet, indigo, blue, green, yellow, orange, and red channels in the visible light region, and the control data of the auxiliary light sources independently control the respective auxiliary light sources. Can be.

In addition, the method for correcting the color rendering of the illumination system consisting of a lighting device and a remote controller according to an embodiment of the present invention, the process of transmitting the control data, the remote control set the main light source and the auxiliary light source to the lighting device when the lighting on request; And performing the illumination by driving the main light source and the auxiliary light source by the control data transmitted by the illumination device, and comparing the color rendering property with reference control data set by the remote controller by measuring the spectral distribution of the light. Analyzing and generating control data of an auxiliary light source of a channel requiring color rendering adjustment and transmitting the control data to the lighting device, and controlling the auxiliary light source according to the auxiliary light source control data transmitted by the lighting device to correct color rendering of illumination. The auxiliary light source corresponds to the wavelength of each channel of the visible light region It may have a light source that generates a name.

In addition, in the illumination color rendering method of the lighting system consisting of a lighting device and a remote controller according to an embodiment of the present invention, when the lighting on request, the remote controller controls the control data set the main light source and the auxiliary light source of the selected illumination mode; Transmitting the light to the light source; driving the main light source and the auxiliary light source by the control data transmitted to the lighting device; and performing a lighting operation by the remote controller; Comparing and analyzing the set reference control data of the mode, and generating the control data of the auxiliary light source of the channel requiring the color rendering adjustment to the lighting device, and the lighting device according to the auxiliary light source control data transmitted The process of compensating the color rendering of the illumination by controlling the auxiliary light source, wherein the auxiliary light source It may have a light source for generating the light corresponding to the wavelength of each channel of the light region.

3 is a diagram illustrating a configuration of an illumination system according to an embodiment of the present invention.

Referring to FIG. 3, the lighting apparatus 100 includes a main light source and an auxiliary light source, and the auxiliary light source may include a plurality of light sources capable of performing color illumination according to respective wavelengths of visible light. The auxiliary light sources are composed of numbers corresponding to the colors that can be expressed in visible light, and in the embodiment of the present invention, seven auxiliary light sources are used, and the auxiliary light sources are purple, indigo blue, green, yellow, orange, and It can be set as a light source capable of generating red color signals. In addition, the lighting device 100 may dimming (dimming control) the lighting control of the main light source. The dimming control of the main light source is to adjust the intensity of the light of the main light source so as to adjust the energy of the light generated in the main light source to be larger or smaller. In addition, the lighting device 100 may include a wireless receiver. The wireless receiver may receive a control signal for dimming and controlling the illumination of the main light source, and may perform a function of receiving control signals of auxiliary light sources for improving the color rendering of the main light source.

The optical analyzer 300 measures the spectral distribution of light illuminated by the illumination device 100. That is, the optical analyzer 300 measures the density (energy) of each wavelength unit of the main light source. The output of the optical analyzer 300 measures the energy of each wavelength in the visible light region of the light generated from the main light source in order to improve the color rendering of the main light source. The output of the optical analyzer 300 is used to correct light generated by the main light source to light having a uniform light density or a desired natural light density without variation in the visible light region. The optical analyzer 300 may use a spectrometer, a spectrophotometer, or the like, and may use a measuring instrument independent of the remote controller 200 as shown in FIG. 3, and may be embedded in the remote controller 200.

The remote controller 200 controls the operation of the lighting device 100 under the control of the user. In addition, the remote controller 200 inputs the spectral distribution value of the main light source measured by the optical analyzer 300, calculates spectroscopic correction data for improving the color rendering of the main light source, and stores it as control data of the auxiliary light source. The remote controller 200 includes a wireless communication unit, and outputs an operation control command of the lighting device and control data of the auxiliary light source through the wireless communication unit when a user requests an operation of the lighting device. Here, the remote controller 200 may include the optical measuring device 300 therein. In this case, the remote controller 200 may measure the color rendering of the main light source of the lighting device 100, and generate control data of the auxiliary light source to improve the color rendering of the main light source according to the measurement result. In addition, the remote controller 200 may correct the color rendering of the lighting device 100 by using an internal light measuring device even when the color rendering of the lighting occurs abnormally when the lighting device 100 performs the illumination using the main light source and the auxiliary light source. Can be.

The remote controller 200 may control the operation of the lighting device in one or more lighting modes. The illumination mode may be a daylight mode, a sunrise mode, a sunset mode, etc. of sunlight. In the remote controller 200, the control data of the illumination mode may be main channel control data of the illumination device 100 and respective channel control data of the auxiliary light sources.

Referring to FIG. 3, it is assumed in the embodiment of the present invention that the lighting apparatus 100 includes an eight-channel light source including a main light source and seven auxiliary light sources. The remote controller 200 receives and stores the measured value of the spectral distribution characteristic of the main light source of the illumination device 100 through the optical analyzer 300. In addition, the remote controller 200 calculates and stores control information of the auxiliary light source for correcting the color rendering of the main light source according to the spectral distribution characteristic of the main light source. When the user requests lighting, the remote controller 200 generates a power control command for the main light source and a power control command for each channel of the auxiliary light sources for correcting the color rendering of the main light source. Then, the illumination device 100 drives the main light source according to the control command of the main light source, and performs the auxiliary light by driving the auxiliary light source corresponding to the control command of the channels. Therefore, the main illumination is added-mixed (or subtracted-mixed) by the auxiliary illumination to perform illumination with improved color rendering.

Referring to the method of setting the power control data of the remote controller 200, the spectral distribution of the main light source is measured by the optical analyzer 300 while driving the main light source of the illumination device 100 and being illuminated. The remote controller 200 receives the measured spectral distribution measurement value of the main light source, and analyzes the color rendering of the main light source according to a user's adjustment command. Thereafter, after calculating color correction values of channels having poor color rendering, the calculated values are set and stored as control data of the corresponding channel of the auxiliary power source.

In this case, the illumination device 200 may vary the brightness of the illumination by dimming the main light source. The remote controller 200 stores spectral distribution values of lights of various states (daylight conditions, sunset, sunrise, cloudy days, etc.) in natural light. The control data for dimming control of the main light source and the control data of the auxiliary light sources are stored. When the user selects a specific illumination mode (for example, daylight mode, sunrise mode, sunset mode, cloudy day mode, etc.) in the above state, the remote controller 200 is configured to control the dimming control data of the corresponding main light source and the auxiliary light sources, respectively. When each channel data is transmitted, the lighting device 100 may control the driving of the main light source and the auxiliary light source, thereby illuminating the set illumination mode.

At this time, the main light source control data of the remote controller 200 and the respective channel control data of the auxiliary light source may be transmitted to the remote controller 200 to the lighting device 100, the lighting device 100 may be stored to control the lighting. In this case, the remote controller 200 only needs to transmit a lighting control command, and the lighting device 100 may control the main light source and the auxiliary light source in a corresponding lighting mode according to the light control command.

The operation of the lighting system as shown in FIG. 3 will be described in detail with reference to FIGS. 4 to 6. Prior to the description of FIGS. 4 to 6, the color temperature and the color rendering of the light will be described.

In general, it is important to select a light source having a color temperature and a light source having high color rendering according to the purpose of the lighting. Color temperature means expressing the color (light) of a light source by physical numerical value. The color temperature is expressed as a color temperature when the object is shining with visible light, when the color looks like a color that a black body radiates at a certain temperature, and the temperature of the black body is equal to the temperature of the object. The unit of is expressed in Kelvin temperature (K). The light color of an illuminating light source can be expressed by this color temperature. The light emitted from the light source becomes red as the color temperature is low, and changes from red to yellow, white, and blue white as the color temperature is high. Generally, a light source of 3000K or less is red, and a light source of 7000K or more shows blue. Currently, the artificial light source commonly used is 2800K for incandescent bulbs, 3000K for halogen bulbs and 6000K for daylight fluorescent lamps. Therefore, since the atmosphere changes in accordance with the change in the color temperature, the color temperature of the light source used in the lighting device becomes a very important factor. Therefore, it is necessary to correct the color temperature so that the color of the object can be distinguished exactly as if the artificial light source of the lighting device is seen under sunlight.

In addition, lighting is important to select a light source having a color temperature and a high color rendering to suit the purpose of the place of use. The color rendering refers to a phenomenon in which light of a light source affects the color of an object. Objects of the same color appear in different colors depending on the color temperature of the light source. For example, a white object appears as a red object when viewed under a red light source, as a blue object when viewed under a blue light source, and as a white object when viewed under sunlight (natural light). This is because the natural light includes various colors of light, and thus may represent the unique color of the object. An index indicating the color rendering of the light source is an average color rendering index Ra (general color rendering index). The average color rendering index is a color that is displayed when irradiated with standard light is 100, and numerically expresses the large and small contrast of the color seen when irradiated with artificial light source. Therefore, if the Ra index is high, it is easy to identify the intrinsic color of the object, and if it is low, it is difficult to identify the intrinsic color of the object. Therefore, the color temperature and color rendering of the light source in the lighting device is a very important factor that can influence the atmosphere. Therefore, it is very important to select a light source with a color temperature and a high color rendering property for the purpose of the lighting device.

4 is a diagram illustrating a configuration of a lighting device 100 according to an embodiment of the present invention.

Referring to FIG. 4, the controller 110 controls the overall operation of the lighting device 100. The memory 120 stores a program for controlling the lighting of the lighting device 100 and also stores control data for controlling the operation of the main light source and the auxiliary light source.

The power supply unit 130 is a power supply for providing overall operating power of the lighting device 100. The power supply unit 130 may generate operating power for controlling the operation of each part of the indoor AC power and the lighting device 100.

The main light source 150 is a light source for performing the main lighting of the lighting device 100. The main light source driver 140 controls the AC power generated by the power supply unit 130 under the control of the control unit 110 to supply the operating power of the main light source 150. Here, the main light source driver 140 may control dimming of the main light source 150 under the control of the controller 130. The auxiliary light source 170 is composed of a plurality of light sources that can generate light signals of color that can occur in each channel of the visible light. In the embodiment of the present invention, the auxiliary light source 170 is composed of seven channels, and the seven channels may be configured as light sources capable of generating light signals of wavelengths constituting the entire region of the visible light. Here, it is assumed that the auxiliary light source 170 is composed of seven light sources capable of generating wavelengths of violet, blue, blue, green, yellow, orange, and red as described above. The auxiliary light source driver 160 controls the illumination of the auxiliary light source 170 corresponding to the power control command for correcting the color rendering of the main light source 150 under the control of the controller 110. The auxiliary light source driver 160 may be configured with a number corresponding to the number of the auxiliary light sources, and may be configured with seven in the embodiment of the present invention.

5A and 5B are front and plan views of an example in which the main light source 150 is a bulb-type fluorescent lamp, and the auxiliary light source 170 is formed of an LED module, and FIGS. 5C to 5D illustrate the main light source 150 is a straight fluorescent lamp, The bottom and side views of an example in which the auxiliary light source 170 is composed of an LED module is shown. As shown in FIGS. 5A to 5D, the main light source 150 may use any one of a fluorescent lamp, a straight fluorescent lamp, and an annular fluorescent lamp, and the auxiliary light source 170 may be formed in each wavelength band of visible light. It is desirable to construct seven channels of light sources that can generate wavelengths of colored lights.

The wireless communication unit 180 receives an illumination control command transmitted from the remote controller 180 and transmits it to the control unit 110. The wireless communication unit 180 may use one of wireless communication methods such as an infrared communication method (IrDA), a Bluetooth communication method, or a Zigbee communication method. In the embodiment of the present invention, it is assumed that the Zigbee communication scheme is used. In the Zigbee communication method, a beacon frame for synchronizing the transmitting and receiving side and a data frame for communicating the lighting control command and lighting control data for controlling the lighting are communicated.

6 is a diagram illustrating a configuration of a remote controller 200 according to an embodiment of the present invention.

Referring to FIG. 6, the controller 210 controls the overall operation of the remote controller 200. The memory 220 stores a program for controlling the operation of the remote controller 200, control of the main light source 150 of the illumination device 100, and respective channel control data of the auxiliary light source 170 for correcting the color rendering of the main light source 150. In addition, the control of the main light source 150 and the control data of the auxiliary light source 170 may be provided in a number corresponding to the number of illumination modes.

The key input unit 230 may include a control command for controlling the operation of the lighting device 100 and keys for selecting an illumination mode. In this case, the keys of the illumination mode may include a plurality of illumination mode keys such as daylight mode, sunset mode, and sunrise mode. The display unit 240 displays an operation state according to the illumination mode selected by the remote controller 210.

The wireless communication unit 250 transmits control information transmitted to the lighting device 100 as wireless data under the control of the control unit 210. Herein, the wireless communication unit may use one of wireless communication methods such as an infrared communication method, a Bluetooth communication method, and a Zigbee communication method. In the embodiment of the present invention, it is assumed that the Zigbee communication scheme is used. The communication unit 260 is connected to an external device to perform a communication function with the external device. The external device may be the optical analyzer 300. In this case, the communication unit 260 may use an RS communication method (232, 442, etc.) or a USB communication method. In the embodiment of the present invention, it is assumed that the USB communication method is used. In this case, when the external device (here, the optical analyzer 300) uses a wireless communication method, the controller 210 may perform a communication function with the external device through the wireless communication unit 250.

The optical measuring unit 270 measures the spectral distribution of the light illuminated by the lighting device 100 while driving the lighting device 100 and transmits the spectral distribution to the control unit 200. Then, the control unit 210 analyzes the measured spectral distribution in the set illumination mode, and if the change occurs in the color rendering of the illumination device 100 checks the wavelength of the channel in which the abnormality in the color rendering. The control data for controlling the illumination of the auxiliary light source 170 of the identified channel is generated and transmitted to the lighting apparatus 100.

In the lighting system having the above configuration, the remote controller 200 should store the control data of the main light source 150 and the respective channel control data of the auxiliary light source 170 in the memory 220 according to the lighting mode. In this case, the control data may be stored and shipped from the memory 220 during manufacture, or may store and use the data measured by the optical analyzer 300. When the user selects an illumination mode by the latter method and determines the control data of the main light source 150 and the auxiliary light source 170 in the selected illumination mode, it is possible to variously control the lighting of the lighting device 100. In addition, the control data of the main light source 150 and the control data of the auxiliary light source 170 may be stored in the memory 220 of the remote controller 200, may be stored in the memory 120 of the lighting device 100. In addition, the remote controller 200 may be included in the lighting device 100 and installed at a location such as a wall of a home.

In addition, the remote controller 200 is provided with a light measuring unit 270, and measures the spectral distribution according to the illumination of the illumination device 100. Then, the color rendering of the illumination device 100 is analyzed based on the measured spectral distribution of the illumination device 100. When the color rendering is poor, the color rendering is not good, and after generating the control data for correcting the illumination of the auxiliary light source 170 of the corresponding channels, the color data is transmitted to the lighting apparatus 100 through the wireless communication unit 250. Then, the lighting device 100 controls the channel lighting of the auxiliary light source 170 under the control of the remote controller 200. Therefore, when the optical measuring unit 270 of the remote controller 200 is used, since the optical analyzer 300 becomes a redundant device, the optical analyzer 300 may be omitted.

When the user selects the illumination mode through the key input unit 230, the control unit 210 detects this and accesses the control data of the main light source 150 and the auxiliary light source 170 of the corresponding illumination mode in the memory 220, and through the wireless communication unit 250 send. Herein, it is assumed that the illumination mode is a case where the daylight mode of sunlight is selected. In this case, the main light source 150 of the lighting device 100 generates the wavelength of the visible light region as shown in FIG. 2B. In this case, the control unit 210 of the remote controller 200 accesses the control data of the daylight mode and the control data of the auxiliary light source 170 as shown in FIG. 2C and transmits them through the wireless communication unit 250. In this case, when control data of the auxiliary light source 170 as shown in FIG. 2C is stored in the memory 120 of the lighting apparatus 100, the controller 210 of the remote controller 200 may generate only a control command of the daylight mode.

Then, the lighting device 100 receives the control command of the daylight mode and the control data of the auxiliary light source 170 through the wireless communication unit 180, thereby detecting that the lighting control of daylight mode. In this case, when the control data of the auxiliary light source 170 of each illumination mode is stored in the memory 120 as described above, the controller 110 receives only the control command of the daylight mode from the controller 210 of the remote controller 200. Then, the control unit 110 controls the main light source driver 140 according to the daylight mode selection to generate a power set in the daylight mode to apply to the main light source 150. Here, the main light source driver 140 has a ballast function, and has a dimming control function for driving the main light source 150 at a set brightness under the control of the controller 110. Then, the main light source 150 performs illumination as shown in FIG. 2B according to the operating power supplied to the main light source driver 140. The auxiliary light source driver 160 receives power control data of each channel under the control of the controller 110, and the driver of each channel supplies operating power to a corresponding auxiliary light source 170 by corresponding power control data. In this case, the power control data of the auxiliary light source may be data for correcting channels having poor color rendering in each channel of the main light source 170. That is, the power control data of the auxiliary light source 170 may be data for correcting the wavelengths having a low distribution in the visible light region of the main light source 150 to be distributed in an appropriate size. Accordingly, the auxiliary light source driver 160 drives the auxiliary light source 170 as shown in FIG. 2C to correct illumination of the main light source 150 having poor color rendering as shown in FIG. 2B. Then, the lighting as shown in FIG. 2B of the main light source 150 is combined with the lighting as shown in FIG. 2C of the auxiliary light source 170 to make the lighting as shown in FIG. 2D. Therefore, the illumination of the main light source 150 and the auxiliary light source 170 is combined to perform the illumination of the main light improved color rendering as shown in FIG.

In addition, as described above, the control unit 200 may check the color rendering by analyzing the spectrum of the light of the lighting device 100. When the color rendering abnormality occurs, the remote controller 200 generates control data for controlling the auxiliary light source 170 of the channel having the color rendering abnormality and transmits it to the lighting device 100. Then, the lighting device 100 corrects the illumination of the corresponding channel of the auxiliary light source 170 by the control data to correct the color rendering of the lighting device 100.

In this manner, the illumination device 100 may improve the color rendering property of the main light source 150 by the auxiliary light of the auxiliary light source 170 in the illumination mode selected under the control of the remote controller 200.

7 is a flowchart illustrating an operation procedure of the remote controller 200.

Referring to FIG. 7, when the lighting on request is generated, the controller 210 of the remote controller 200 detects this in step 311 and checks the selected lighting mode in step 313. In this case, the lighting on request may be generated through the key input unit 230, and the lighting request may be generated by a specific lighting mode key (for example, daylight mode, sunset mode, sunrise mode key, etc.) on the key input unit 230. May also be generated by the on key. In this case, when the specific illumination mode key is pressed, the controller 210 may check the corresponding illumination mode in step 313, and when the power-on key is pressed, select the illumination mode performed in the previous state in step 313. . When checking the illumination mode, the control unit 210 selects the control data of the illumination mode in step 315 and outputs through the wireless communication unit 250. In this case, the control data may be data for controlling the main light source 150 of the lighting device 100 and / or data for controlling the auxiliary light source 170.

When the illumination device 100 is driven by the illumination control command to perform illumination, the controller 210 receives the spectral distribution measurement value of the illumination device 100 received through the light measuring unit 270 in step 317. In step 319, the controller 210 analyzes the measured spectral distribution data to analyze the color rendering of the illumination device 100. In this case, the measured spectral distribution value may be a spectrum of visible light illuminated by the illumination device 100, and the distribution of wavelengths corresponding to each channel may be confirmed. At this time, if the spectral distribution value is abnormal in one or more channels, the wavelength distribution of the corresponding channel should be adjusted. If the spectral distribution value does not occur, the corresponding state is maintained without channel correction of the auxiliary light source 170. If there is an abnormality in the spectral distribution, the control unit 210 detects it in step 321, and adjusts the control data for adjusting the wavelength of the channel in which the abnormality occurs in step 323 to the wavelength of the set distribution, and in step 325. The adjusted channel control data of the auxiliary light source 170 is output through the wireless communication unit 250. Then, the lighting device 100 controls the driving of the auxiliary light source 170 of the corresponding channel to correct the color rendering of the lighting device 100. In this case, the spectral distribution measurement of the illumination device 100 through the optical measuring unit 270 may be performed at a predetermined time unit, or may be performed only when the lighting is turned on.

When the user changes the illumination mode in the lighting state as described above, the control unit 210 detects this in step 327 and returns to step 313 to confirm the illumination mode selected by the user, and repeats the above operation. When the user requests the lighting off, the control unit 210 detects this in step 329, transmits the lighting off command through the wireless communication unit 250 in step 331, and ends the procedure of FIG. 7.

8 is a flowchart illustrating an operation procedure of the lighting apparatus 100 having the configuration as illustrated in FIG. 4.

Referring to FIG. 8, when an illumination control command is received through the wireless communication unit 180, the control unit 110 of the lighting apparatus 100 detects it in step 411, and according to the illumination mode set in step 413, the main light source driver 140 and the auxiliary light source driver. The control unit 160 drives the main light source 150 and the auxiliary light source 170. Then, illumination is performed according to the driving of the main light source 150 and the auxiliary light source 170. In this case, the illumination control command may receive only an illumination mode command according to the stored data of the memory 120, and may be a command including the illumination mode command and control data of the auxiliary light source 170.

When the control data for adjusting the illumination of the auxiliary light source 170 is received in the state where the lighting device 100 is illuminated as described above, the control unit 110 detects it in step 415 and the adjusted control data of the auxiliary light source 170 in step 417. It stores in the memory 120, and controls the channel driver of the auxiliary power driver 160 to adjust the illumination of the corresponding channel light source of the auxiliary light source 170. Then, the color rendering of the illumination device 100 is adjusted by the illumination of the adjusted auxiliary light source 170.

When the illumination mode change command is generated while the illumination is performed as described above, the control unit 110 detects this in step 419, and in step 421 changes the control of the main light source 150 and the auxiliary light source 170 according to the illumination mode to illuminate the light. After performing the above-described operation, the lighting operation is repeatedly performed. In addition, when the lighting off command is generated in the remote controller 200, the control unit 110 detects this in step 423 and terminates the illumination of the main light source 150 and the auxiliary light source 170 while stopping the light control operation of the lighting device 100 in step 425.

As described above, the lighting apparatus according to the embodiment of the present invention includes a main light source and an auxiliary light source, and corrects the color rendering of the main light source by the auxiliary light source, thereby improving the color rendering of the light, thereby illuminating the lighting device. There is an advantage that can be controlled close to the natural light.

Claims (20)

In the color rendering correction device of the lighting device, An illumination device having auxiliary light sources for generating illumination corresponding to the wavelengths of the primary light source and the respective channels in the visible light region; It is composed of a remote controller for measuring the illumination of the main light source to measure the spectral distribution of each of the channels, and by analyzing the measured spectral distribution to generate auxiliary light source control data of the low color rendering channel, The color rendering correction apparatus of the lighting apparatus, characterized in that for controlling the color rendering of the main light source by driving the auxiliary light source corresponding to the illumination device by the auxiliary light source control data by the auxiliary light source control data of the remote controller. The method of claim 1, wherein the remote controller, An optical measuring unit measuring a spectral distribution of illumination of the lighting device; A memory for storing color rendering reference data of the lighting device; And a control unit configured to generate an auxiliary light source control data for adjusting color rendering by analyzing the spectroscopic distribution measured by the optical measuring unit with the color rendering reference data. The method of claim 2, wherein the lighting device, Daylight Source, An auxiliary light source provided with a number corresponding to each channel of the visible light region and providing auxiliary illumination of each channel; A control unit for outputting power control signals of the main light source and the auxiliary light source by a power control command and auxiliary light source control data output from the remote controller; A main light source driver for driving illumination of the main light source by the main light source power control signal; It is provided with a number corresponding to the number of the auxiliary light source, the color rendering correction device of the illumination device, characterized in that the driving unit is driven by the auxiliary light source control signal is configured to drive the illumination of the auxiliary light source . 4. The auxiliary light source of claim 3, wherein the auxiliary light source comprises violet, indigo, blue, green, yellow, orange, and red light sources in a visible light region, and the auxiliary light source driver includes seven drivers corresponding to the number of channels. Color rendering correction apparatus of the lighting device, characterized in that the. The apparatus of claim 4, wherein the main light source driver includes a dimming control unit, and the dimming control unit controls the illumination of the main light source by the control unit. The wireless controller of claim 5, wherein the remote controller and the lighting apparatus include a wireless communication unit, and the wireless communication unit of the remote controller converts control data of the main light source and the auxiliary light source output from the control unit of the remote controller into wireless communication data. And the wireless communication unit of the lighting apparatus receives the wireless communication data transmitted from the remote controller and outputs the wireless communication data to the wireless communication unit of the lighting apparatus. The apparatus of claim 8, wherein the wireless communication units use a Zigbee communication method. The method of claim 1, wherein the remote controller, An optical measuring unit measuring a spectral distribution of illumination of the lighting device; A memory for storing dimming control data of the main light source according to at least two illumination modes and color rendering reference data of the illumination device according to the illumination modes; When the illumination mode is selected, the control data of the main light source and the auxiliary light source of the corresponding illumination mode is output from the memory, and the corrected auxiliary light source for adjusting the color rendering by analyzing the spectral distribution measured by the optical measuring unit with the color rendering reference data Color rendering correction apparatus of the lighting device, characterized in that consisting of a control unit for generating control data. The method of claim 8, wherein the lighting device, Daylight Source, An auxiliary light source provided with a number corresponding to each channel of the visible light region and providing auxiliary illumination of each channel; A control unit for dimming the main light source and outputting power control signals of the auxiliary light source by control data of the main light source auxiliary light source output from the remote controller; A main light source driver for dimming and controlling the illumination of the main light source by the main light source power control signal; It is provided with a number corresponding to the number of the auxiliary light source, the color rendering correction device of the illumination device, characterized in that the driving unit is driven by the auxiliary light source control signal is configured to drive the illumination of the auxiliary light source . The color rendering correction apparatus of claim 9, wherein the main light source driver includes a dimming control unit and dimming the illumination of the main light source in the illumination mode selected by the control unit. 10. The display device of claim 9, wherein the auxiliary light source comprises violet, indigo, blue, green, yellow, orange, and red light sources in a visible light region, and the auxiliary light source driver comprises seven drivers corresponding to the number of the channels. Color rendering correction apparatus of the lighting device, characterized in that the. The apparatus of claim 11, wherein the remote controller and the lighting apparatus include a wireless communication unit, and the wireless communication unit of the remote controller converts control data of the main light source and the auxiliary light source output from the control unit of the remote controller into wireless communication data. And the wireless communication unit of the lighting apparatus receives the wireless communication data transmitted from the remote controller and outputs the wireless communication data to the wireless communication unit of the lighting apparatus. The apparatus of claim 12, wherein the wireless communication units use a Zigbee communication method. In the color rendering correction method of the lighting device, A process of driving the main light source and the auxiliary light source with the set control data and illuminating the light on request; Measuring the spectral distribution of the illumination and comparing the color rendering with the set reference control data, and generating control data of an auxiliary light source of a channel requiring color rendering adjustment; And controlling the auxiliary light source according to the auxiliary light source control data to correct color rendering of illumination. The auxiliary light source is a color rendering correction method of the lighting apparatus, characterized in that the light sources for generating illumination corresponding to the wavelength of each channel of the visible light region. 15. The method of claim 14, wherein generating the control data of the auxiliary light source Comparing the measured spectral distribution result with reference control data of the stored auxiliary light source; Changing the control data of the channels having abnormal color rendering according to the comparison result; Color rendering correction method of the lighting apparatus, characterized in that the process of outputting the control data of the changed auxiliary light source. The method of claim 15, wherein the auxiliary light source is composed of light sources that illuminate the violet, indigo, blue, green, yellow, orange, and red channels of the visible light region, and the control data of the auxiliary light sources are independent of each of the auxiliary light sources. Color rendering correction method of the lighting apparatus characterized in that the data to be controlled by. In the lighting color rendering method of the lighting system consisting of a lighting device and a remote controller, Transmitting, by the remote controller, a control data set to a main light source and an auxiliary light source to the lighting device upon request of lighting on; Performing lighting by the illumination device driving the main light source and the auxiliary light source by the transmitted control data; Measuring, by the remote controller, the spectral distribution of the illumination and comparing the color rendering with the set reference control data, generating control data of an auxiliary light source of a channel requiring color rendering and transmitting it to the lighting apparatus; The illumination device is made of a process of correcting the color rendering of the illumination by controlling the auxiliary light source according to the transmitted control light source data, The auxiliary light source is a color rendering correction method of the lighting apparatus, characterized in that the light sources for generating illumination corresponding to the wavelength of each channel of the visible light region. The process of claim 17, wherein the remote controller generates control data of the auxiliary light source. Comparing the measured spectral distribution result with reference control data of the stored auxiliary light source; Changing the control data of the channels having abnormal color rendering according to the comparison result; Color rendering correction method of the lighting apparatus, characterized in that the process of outputting the control data of the changed auxiliary light source. 19. The method of claim 18, wherein the auxiliary light source is comprised of light sources that illuminate the violet, indigo, blue, green, yellow, orange, and red channels of the visible light region, the control data of the auxiliary light sources being independent of the respective auxiliary light sources. Color rendering correction method of the lighting apparatus characterized in that the data to be controlled by. In the lighting color rendering method of the lighting system consisting of a lighting device and a remote controller, Transmitting, by the remote controller, the set control data to the illumination device, the main light source and the auxiliary light source of the selected illumination mode when the lighting on is requested; Performing lighting by the illumination device driving the main light source and the auxiliary light source by the transmitted control data; The remote controller measures the spectral distribution of the illumination to compare the color rendering with the set reference control data of the selected illumination mode, and to generate the control data of the auxiliary light source of the channel that needs to adjust the color rendering to the lighting device and, The illumination device is made of a process of correcting the color rendering of the illumination by controlling the auxiliary light source according to the transmitted control light source data, The auxiliary light source is a color rendering correction method of the lighting apparatus, characterized in that the light sources for generating illumination corresponding to the wavelength of each channel of the visible light region.

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