JPH07282614A - Light source for lighting - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] Even in lighting systems that use multiple light sources, it is possible to synchronously control light emission changes and light blocking, and to check and monitor the state of the light source side. A light source device for illumination is provided. A lighting light source device includes N light source units 1 including a light source that makes light enter one end of an optical fiber and emits light from the other end and / or a side face thereof, and a control unit 2 that controls these light source units 1. In each of the light source units 1, a rotatable color filter and a light shielding plate which are inserted between an incident end of an optical fiber and a light source, and a color filter and a light shielding plate are provided. A light detector for detecting the rotational position, a temperature sensor for detecting whether or not the inside of the light source unit has reached an upper limit temperature or more, and an extinction detector for detecting extinction of the light source.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light source device for optical fiber illumination, which controls a plurality of light source parts in a synchronous or asynchronous manner.

[0002]

2. Description of the Related Art As a light source device for illumination for causing light to enter from an end face of an optical fiber and to leak from a side face of the optical fiber or to emit light from an emitting end of an end face on the opposite side, light is applied to one end of the optical fiber. There is a light source device for illumination that includes a light source unit that enters and emits light from the other end and a light source controller.

In this light source device, a rotatable color filter and a rotatable light shielding plate are inserted between the optical fiber entrance end and the light source in order to change the emission color and shield the light. The rotation of the light shielding plate and the light shielding plate is controlled by the controller. When a plurality of light source devices are used, their respective controllers control the rotation of the color filter and the light shielding plate to change the emission color or shield the light.

[0004]

However, in the above-mentioned conventional illumination light source device using an optical fiber, in the illumination system using a plurality of light sources because each controller controls each light source section. , Change the emission color,
When shading, the color filters of each light source and the rotation of the shading plate are controlled in synchronization with each other, and the emission color is changed synchronously,
There is an inconvenience that it is difficult to block light. Further, in the conventional control, only a series of control commands are sent from the controller to the light source unit side, a self test for checking the state of the light source unit side is not performed, and the light source unit side is not monitored. .

The present invention has been made based on the background described above, and an object of the present invention is to enable synchronous control of light emission change and light shielding even in an illumination system using a plurality of light sources, and a light source section. It is an object of the present invention to provide a light source device for illumination that can check and monitor the state of the side.

[0006]

The above-mentioned problems can be solved by the present invention. That is, the illumination light source device using the optical fiber according to the present invention controls a plurality of light source units including a light source that causes light to enter one end of the optical fiber and emits light from the other end and / or the side surface, and the light source unit. And a rotatable color filter inserted between the optical fiber entrance end and the light source, and a space between the optical fiber entrance end and the light source. A rotatable light-shielding plate inserted in the, a photodetector for detecting the rotational position of the color filter and the light-shielding plate, a temperature sensor for detecting whether or not the inside of the light source unit has reached the upper limit temperature, An extinction detector for detecting extinction is provided, and the controller has each light source unit,
An ON / OFF signal for a color filter rotation driving device, an ON / OFF signal for a light shielding plate rotation driving device, an initialization signal of a color filter and / or an initialization signal of a light shielding plate are sent out, and each light source unit controls each of these controllers. In addition, the light source unit controls the plurality of light source units synchronously or asynchronously by transmitting a signal exceeding the upper limit temperature of each light source unit, a rotation position signal of the color filter and the light shielding plate, and / or a light source extinguishing signal. .

[0007]

The light source device for illumination according to the present invention having the above-described structure operates and operates as follows. In the light source device for illumination using the optical fiber according to the present invention, necessary electricity is supplied to the light source from the power source device for the light source, the light from the light source is incident on the incident end of the optical fiber, and the light is emitted from the other end and / or the side surface. To be emitted.

In each light source section, a rotatable color filter and a light shielding plate are inserted between the optical fiber entrance end and the light source. The color filter and the light shield plate change the color of light incident on the optical fiber or shield the light. Further, the photodetector detects the rotational positions of the color filter and the light shielding plate and sends the rotational position signals of the color filter and the light shielding plate to the controller. The temperature sensor detects whether or not the inside of the light source unit is at or above the upper limit temperature, and sends a signal indicating the state to the controller to exceed the upper limit temperature of each light source unit. Further, the turn-off detector detects the turn-off of the light source and sends a light source turn-off signal to the controller for the state.

Based on the control setting program, the controller turns on / off the color filter rotation drive device for each light source unit.
OFF signal, ON / OFF signal for light shield rotation drive,
The initialization signal of the color filter and / or the initialization signal of the light shielding plate are sent to control the light emission change / light shielding by the plurality of light source units synchronously or asynchronously.

[0010]

The present invention will be specifically described with reference to the following examples. An embodiment of a light source device for illumination according to the present invention is shown in FIG.
4 to 4. 1 is a schematic perspective view of an embodiment of a light source device for illumination according to the present invention, and FIG. 2 is a perspective view of an embodiment of a light source unit of the light source device for illumination according to the present invention.
FIG. 3 is an internal plan view of an embodiment of a light source unit of an illumination light source device according to the present invention, and FIG. 4 is a communication flowchart for explaining the operation of the embodiment of the illumination light source device according to the present invention. is there.

The illuminating light source device of this aspect includes N (up to 30) light source units 1 including light sources that cause light to enter one end of an optical fiber and to emit light from the other end and / or side surface, and these light sources. A light source device for illumination comprising a control unit 2 for controlling the unit 1. In each light source unit 1, a rotatable color filter 5 inserted between an incident end of an optical fiber 3 and a light source 4 is provided. ,
Inside the light source section, a rotatable light shield plate 6 inserted between the incident end of the optical fiber 3 and the light source 4, a photodetector (not shown) for detecting the rotational position of the color filter and the light shield plate, and Temperature sensor (not shown) that detects whether the temperature has exceeded the upper limit temperature, and a light-off detector (not shown) that detects whether the light source is off
With.

The controller 2 is connected to each light source unit 1 by a communication line, and the light source unit 1 is turned on / off for the color filter rotation driving device.
OFF signal, ON / OFF signal for light shield rotation drive,
An initialization signal of the color filter and / or an initialization signal of the shading plate is sent out, and each light source unit 1 sends a signal to the controller 2 that the upper limit temperature of each light source unit 1 is exceeded, a rotation position signal of the color filter and the shading plate. And / or, a light source turn-off signal is sent to control a plurality of light source units synchronously or asynchronously. In this embodiment, the light source unit is housed in the main body case 7. The rotatable color filter 5 and the rotatable light shielding plate 6 are driven by motors 10 and 11.

In this embodiment, a temperature sensor (not shown) which is housed in the case 7 and shuts off the switch of the power source when the temperature inside the case 7 becomes a predetermined temperature or higher is provided, and such a sensor is installed. By doing so, accidents such as overheating and fire can be prevented, and a device with more complete safety measures can be provided. In addition, in this embodiment, when the lamp is turned off for some reason, an extinguishing signal is output to the outside, and by using such a device, the maintenance and security of the lighting device can be easily performed.

Next, the operation and function of the illumination light source device of this embodiment will be described. In the illumination light source device using the optical fiber according to this embodiment, necessary electricity is supplied from the power source device for the light source to the light source 4, the light from the light source 4 is incident on the incident end of the optical fiber 3, and the other end and / Alternatively, the light is emitted from the side surface. In each light source unit, a rotatable color filter 5 and a light shielding plate 6 are inserted between the optical fiber incident end and the light source, and the light incident on the optical fiber 3 is inserted by the color filter 5 and the light shielding plate 6. The color of the can be changed or shaded.

Further, the photodetector detects the rotational positions of the color filter 5 and the light shielding plate 6, and sends the rotational position signals of the color filter and the light shielding plate to the controller 2 based on the detected states. The temperature sensor detects whether or not the inside of the light source unit has become higher than or equal to the upper limit temperature and sends a signal indicating that state to the controller to exceed the upper limit temperature of each light source unit, and the extinction detector detects that the light source is off and Send a light source turn-off signal to the controller. Based on the control setting program, the controller 2 provides each light source unit 1 with an ON / OFF signal for the color filter rotation driving device, an ON / OFF signal for the light shielding plate rotation driving device, an initialization signal for the color filter, and / or An initialization signal of the light shielding plate is sent to control light emission changes and light shielding by the plurality of light source units synchronously or asynchronously.

The operation of the above signal transmission (communication) will be described more specifically with reference to the flowchart of the control setting program example of FIG. When the operation is started, a command signal for driving the motor is sent from the controller to each light source unit so that the color filters of all the light source units and the light shielding plates are rotated to the initial positions.
A signal for turning on each lamp is sent from the controller to each light source unit after waiting a predetermined initial time. Then, the photodetector detects the rotational positions of the color filter 5 and the light shielding plate 6 and sends the rotational position signals of the color filter and the light shielding plate to the controller, and the controller checks whether or not they are in the initial positions. . Furthermore,
The extinction detector detects the extinction of the light source, sends a light source extinction signal to the controller, and checks whether the lamp is lit by the controller. The above is the self-test and initial setting at the start.

After that, it consists of a group of control command cells. The kind of control to be performed can be appropriately changed / selected according to a desired lighting effect or the like. In this example, it is composed of A, A ′, and A ″, and for example, A is composed of a group of control commands for filter rotation, waiting for a designated time, stopping filter rotation, and waiting for a designated time. And, a command signal for driving the motor to rotate to the initial position of the light shielding plate is sent from the controller to each light source unit.

Then, after the execution of a group of control commands, a communication check is made to see if there is any break in the communication line, and the temperature sensor detects whether or not the temperature inside the light source unit has reached the upper limit temperature or above, and informs the controller of the state. A temperature check that sends a signal exceeding the upper limit temperature of the light source unit to check whether it is at a predetermined temperature with the controller,
Perform a self-test such as a lamp OFF check.
After the execution of this self-test, the process returns to execute a group of control commands A, A ′, A ″ again to perform control.

Since it is based on such a control program, even if the rotational positions of the color filter and the light shielding plate are slightly deviated during the execution of the group of control commands A, A ', A'', the initial positions of the color filter and the light shielding plate are changed. Can be calibrated and kept in sync. Further, when the temperature of the light source unit exceeds a predetermined temperature by the temperature check, the power switch is shut off to prevent accidents such as overheating and fire, thereby providing a device with more complete safety measures. Further, the lamp check makes it possible to easily maintain and maintain the lighting device even if the lamp is turned off for some reason.

In this communication, a plurality of light source units can be individually recognized. For example, each light source unit is given an address number, and the signal from the controller is added with the address signal of the light source unit to be controlled and output, and each light source unit outputs the data when its own address comes. Takes in and returns a signal of its own address number and status. In this communication format, 1 byte is transmitted, the upper 5 bits are an address, and the lower 3 bits are a control command.

[0021]

As demonstrated in the above embodiments, according to the present invention, even in an illumination system using a plurality of light sources, it is possible to synchronously control light emission change and light shielding, and to check the state of the light source section side. Can be monitored.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of an embodiment of a light source device for illumination according to the present invention.

FIG. 2 is a perspective view of an embodiment of a light source section of a light source device for illumination according to the present invention.

FIG. 3 is an internal plan view of an embodiment of a light source section of a light source device for illumination according to the present invention.

FIG. 4 is a communication flowchart according to an embodiment of a light source device for illumination according to the present invention.

[Explanation of symbols]

 1 Light Source Section 2 Control Section 3 Optical Fiber 4 Lamp 5 Color Filter 6 Light Shield 7 Body Case 10, 11 Motor

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display location G02B 6/00 331 6/42 H05B 37/02 L H

Claims (1)

[Claims] 1. A light source device for illumination comprising: a plurality of light source units including a light source for injecting light into one end of an optical fiber and emitting light from the other end and / or a side surface thereof; and a control unit for controlling the light source unit. Then, in each light source part, a rotatable color filter inserted between the optical fiber incident end and the light source, and a rotatable light shielding plate inserted between the optical fiber incident end and the light source. , A photodetector for detecting the rotational position of the color filter and the light shielding plate, a temperature sensor for detecting whether or not the inside of the light source unit is at or above the upper limit temperature, and an extinction detector for detecting extinction of the light source, The controller has an ON / OFF signal for the color filter rotation driving device and an ON / O for the light shielding plate rotation driving device for each light source unit.
An FF signal, a color filter initialization signal, and / or a shading plate initialization signal are transmitted, and each light source unit sends to the controller a signal indicating that the upper limit temperature of each light source unit is exceeded, rotation of the color filter and the shading plate. A light source device for illumination, wherein a position signal and / or a light source turn-off signal is sent to control a plurality of light source units synchronously or asynchronously.