CN1667495A - Color temperature automatic adjustment apparatus and method for projector - Google Patents
Color temperature automatic adjustment apparatus and method for projector Download PDFInfo
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- CN1667495A CN1667495A CN 200410021368 CN200410021368A CN1667495A CN 1667495 A CN1667495 A CN 1667495A CN 200410021368 CN200410021368 CN 200410021368 CN 200410021368 A CN200410021368 A CN 200410021368A CN 1667495 A CN1667495 A CN 1667495A
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- 238000003199 nucleic acid amplification method Methods 0.000 claims description 15
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- Projection Apparatus (AREA)
Abstract
This invention relates to a projector color-temperature automatic adjustment apparatus and its method, wherein, the apparatus comprises the first sensor sensing projector set-up state, the second sensor sensing projector set-up magnetic field, a controller automatically controlling color-temperature state according to measured latitude and a memory device storing color-temperature.The method comprises following steps: detecting the stage of horizontal perception number and magnetic field force; calculating the stage of normal number according to error; calculating the stage of latitude according to calculated normal number; automatically adjusting color temperature stored in memory device.
Description
Technical field
The present invention relates to the colour temperature automatic regulating apparatus and the method for adjustment thereof of a kind of projector, particularly a kind of projector.
Background technology
Usually people are when watching things, and the tone that overall feeling arrives is understood the difference because of photocurrent versus light intensity, and demonstrates different results.For instance, under incandescent lamp, what show on the whole is exactly red color tone, and with respect under the incandescent lamp, what then demonstrate is blue cast under the daylight lamp.
The tone that integral body shows has relation with colour temperature.So-called colour temperature (color temperature) is meant that the size by the light of complete heat emission, its unit are Kelvin (Kelvin).If the colour temperature height will demonstrate blue system,, will demonstrate red colour system if colour temperature is low.
Color display system, these can provide the equipment of visual information to be widely used to the user as TV, DTV, TFT (thin film transistor (TFT)), monitor, color/graphics, digital camera, projector, mobile phone etc.In order to improve the image quality of color display system, be necessary colour temperature is regulated.
, in fact the desirable white of people's imagination all is not quite similar.Though be because the different cause of personal like in fact also exists whole deviation.This is to depend on reflected light and exist because of actual color, and because the earth is round, light can not arrive tellurian each local cause simultaneously.
Because the earth is circular, residing separately latitude difference, the height that Taiyang channel is crossed is also different, because the difference of altitude of the sun, the feasible intensity that arrives the light on ground demonstrates different results according to the difference of wavelength.Therefore, the color of the sun that people see also can have certain difference owing to the difference of own latitude of living in, so the notion of the white that people feel also is not quite similar.
Near more from the equator, the height of the sun is high more, and the colour temperature of the white of people's imagination is just high more.This is that the very short blue colour system of wavelength can be easy to arrive the cause on ground owing to compare with the region of the equator.
On the contrary, near more from south poles, it is red more that the sun seems, these regional people have been familiar with this red sun, and they just think desirable white to the white that the tassel flower color is arranged a little.That is, the white color temperature of the people in the south poles place imagination is lower.
That is, the sale of display device should be selected different equipment according to the difference in area, makes each area that the colour temperature that is fit to oneself can both be arranged, and can construct most suitable best picture.But in fact sale is not carried out according to the area, but worldwide sells arbitrarily.In this case, the user just can constantly adjust colour temperature by menu.
But for the user who is unfamiliar with operation, this is not the part simple thing, can show that the picture of oneself liking satisfied is the thing of requiring great effort very much really.Promptly, select in the manual menu of colour temperature adjustment the inside, the system that has is directly selected between colour temperature 6500k, 9300k (k is an absolute temperature) etc., also have plenty of by after the basic, normal, high processing of colour temperature, between these several options, select to adjust colour temperature, because each display system is all variant for the adjustment of colour temperature, so just formed the use gamma ray colour temperature is adjusted.
Above shown be that the manual methods of conventional art is carried out the adjustment of colour temperature to display device, but what is under the colour temperature situation about not knowing most of user, although being provided, colour temperature adjusts menu on menu, but they still can not use neatly, no matter having caused is any area, which type of hobby the user has, and has all kept stationary phase colour temperature together, to such an extent as to the low problem of user satisfaction occurred.
Summary of the invention
The colour temperature automatic regulating apparatus and the method for adjustment thereof that the purpose of this invention is to provide a kind of projector, it has solved the problem that conventional art exists, can the latitude in area be set and state is set by grasping display device, difference according to the area, with the color that each regional people select colour temperature is adjusted automatically, be user's image that offers the best, improve the usability of equipment.
The object of the present invention is achieved like this: the colour temperature automatic regulating apparatus of this projector is made of following components: promptly, aware projector is provided with the first sensor of horizontality; Aware projector is provided with second sensor in magnetic field; According to the numerical value that first sensor and second sensor senses arrive, measure the latitude that projector is provided with the area, can control the controller that colour temperature is set automatically according to the latitude of measuring; The colour temperature that to set according to the latitude of said determination is carried out memory storing.
First sensor is made of following several parts.That is, can perceive the accelerometer of the horizontal/vertical error (α, β) of projector; The error (α, β) of accelerometer perception is carried out the amplifier of amplification; The A/D converter that error amount after amplification in the above-mentioned amplifier is changed to data-signal.
Second sensor is made of following three parts.That is, difference perception x, y, first to the 3rd magnetic filter sensor of z direction magnetic field (Fx, Fy, Fz); Receive magnetic field (Fx, Fy, the Fz) input that first to the 3rd magnetic filter sensor senses arrives, the amplifier that the line advance of going forward side by side is handled; The A/D converter that value after amplification in the amplifier is changed to data-signal.
Color temperature adjusting method for the projector of the present invention that possesses first, second sensor and storer of realizing above-mentioned purpose specifically comprises following several stages.That is, go out the stage of horizontal perception numerical value and magnetic field value by first, second sensor senses; Detect above-mentioned error in value, detected error is revised, calculate stage of normal number according to error; According to the normal value of calculating, calculate the stage of latitude; According to the latitude difference of calculating, the stage that the colour temperature of storing in the storer is adjusted automatically.
In sum, the color temperature regulator of projector of the present invention and method are according to the magnetic field of the earth power of projector location and the error of horizontal/vertical when being provided with, calculate latitude, then according to the latitude that calculates, colour temperature is carried out differentiating and processing, carry out suitable automatic setting with the colour temperature that each regional people liked, can offer the only image of user, can improve the satisfaction of user thus equipment.
Description of drawings
Below in conjunction with accompanying drawing the present invention is further described.
Fig. 1 is the block diagram that shows the colour temperature automatic regulating apparatus of projector of the present invention.
Fig. 2 is the schematic diagram that shows the magnetic field of the earth vector.
What Fig. 3 showed is at accelerometer Rigen shown in Figure 1 schematic diagram according to the horizontal correction angle that perceives.
Fig. 4 is the process flow diagram of temperature Automatic adjustment method that shows the colour temperature automatic regulating apparatus of projector of the present invention.
Accompanying drawing major part symbol description
100: 200: the second sensors of first sensor
300: controller 400: storer
500: image processor
Embodiment
Below, with reference to accompanying drawing, the colour temperature automatic regulating apparatus and the method for adjustment thereof of projector of the present invention is elaborated.
Fig. 1 is the block diagram that shows the colour temperature automatic regulating apparatus of projector of the present invention, and what Fig. 2 showed is the schematic diagram of the magnetic field of the earth vector of perception in magnetic filter sensor shown in Figure 1.Fig. 3 shows is in accelerometer perception shown in Figure 1, detect the figure of horizontal/vertical error.
Projector color temperature regulator of the present invention is made of following several parts as shown in Figure 1.That is, aware projector is provided with the first sensor (100) of horizontality; Aware projector is provided with second sensor (200) in magnetic field; According to the numerical value that first sensor (100) and second sensor (200) perceive, measure the latitude that projector is provided with the area, can control the controller (300) that colour temperature is set automatically according to the latitude that records; To carry out memory storing (400) according to the colour temperature that the above-mentioned latitude that records is set; Under the control signal effect of controller (300), use the colour temperature of storer (400) lining storage, the image processor (500) that carries out image processing.
First sensor (100) is made of following several parts: the accelerometer (101) that can perceive the horizontal/vertical error (α, β) of projector; The error (α, β) that accelerometer (101) is perceived is carried out first, second amplifier (102), (103) of amplification; The error amount after first, second amplifier (102), (103) lining amplification to first, second A/D converter (104), (105) that data-signal is changed.
Second sensor (200) is made of following several parts.That is first to the 3rd magnetic filter sensor (201)～(203) of difference perception x, y, z direction magnetic field force (Fx, Fy, Fz); To import the 3rd to the 5th magnetic filter sensor (204)～(206) that amplification is handled at the magnetic field force (Fx, Fy, Fz) that first to the 3rd magnetic filter sensor (201)～(203) lining perceives; In the value of the 3rd to the 5th magnetic filter sensor (204)～(206) lining amplification the 3rd to the 5th A/D converter (207)～(209) to data-switching.
Below will be specifically described the desirable principle of work of projector color temperature regulator of the present invention:
At first, opening power will be guaranteed the accelerometer (101) of first sensor (100) is provided with on smooth level land, as shown in Figure 3, if projector is provided with inclination, be separately towards the direction revisal α of horizontal/vertical, the angle of β.
To the revisal angle (α) of first amplifier (102) input in the formation of accelerometer (101) lining, to second amplifier (102) input revisal angle (β), carrying out amplification in the specified standard separately, in first and second amplifier (101), (102) output valve after the amplification of lining carries out being input to controller (300) lining after the digitized processing to first and second A/D converter (104) (105) input.
In addition, as shown in Figure 2, first to the 3rd magnetic filter sensor (201)～(203) of second sensor (200) perceive x respectively, y, the magnetic field of the earth power of z direction (Fx, Fy, Fz).
That is, according to two the power Fx and the Fy of level, can know the direction in the north, the power Fz of vertical direction is because the difference of latitude also demonstrates difference, and this also is because the earth is circular cause.On the round earth, the arctic is the bottom of the earth exactly, also is the strongest place of magnetic pole, so its power is also maximum, from magnetic pole equator more and more far away in the neighbourhood, it is minimum that power reaches.That is, according to the difference of latitude, the direction of the power F in magnetic field of the earth also changes.
Power separately (Fx, Fy, Fz) in first to the 3rd magnetic filter sensor (201)～(203) lining perception is imported to the 3rd to the 5th magnetic filter sensor (204)～(206) lining, carry out amplification within the limits prescribed, numerical value after the 3rd to the 5th magnetic filter sensor (204)～(206) lining amplification is imported to the 3rd to the 5th A/D (207) that carries out data-switching～(209) converter, after the digitizing, input controller (300).
Therefore, controller (300) goes out latitude according to the various computing of first sensor (100) and second sensor (200) output, according to the latitude of calculating, the colour temperature of control store (400) lining device storage is adjusted automatically, image processor (500) is according to controller) control signal of (300) uses new colour temperature, display system handled to signal of video signal.
Promptly, measure the size of the magnetic field of the earth power of placing the magnetic filter sensor orientation by first to the 3rd magnetic filter sensor (201)～(203), and it is exported with voltage form, after passing through the 3rd to the 5th amplifier (204)～(206) respectively, by the 3rd to the 5th A/D converter (207)～(209), the size of magnetic field force is carried out digitized processing again.
, theory even so, practical operation is got up but and is not easy.Because above-mentioned scheme will measure in the plane and could accurately carry out, in fact such as display systems such as projector owing to various reason may cause and can not flatly be provided with, the problem that is obliquely installed has all appearred in most cases.
Therefore, for the such situation of revisal, should measure existing user's latitude exactly according to the difference of laying state.If not the magnetic filter sensor is set, just may produce the error of horizontal/vertical as shown in Figure 3 on flat ground surface.
With reference to Fig. 4 the color temperature adjusting method of projector of the present invention is described below, at first, the user confirms, judges (S11) to whether having imported the opening power signal
Then, if above-mentioned judged result (S11) person of being to use has imported the opening power signal, then accept the input (Fx, Fy, Fz, α, β) of the perception numerical value that perceives by (S12) first sensor (100) and second sensor (200).
Secondly, whether the said sensed numerical value (Fx, Fy, Fz, α, β) to input exists error to judge (S13).
Then,, error amount (Fx ', Fy ', Fz ') is applied in the following mathematical formulae, calculates normal value (S14 ~ S15) if judged result (S13) is to have error.
[mathematical formulae 1]
Fx＝Fx’cos+Fz’sin?cos
Fy＝Fy’cos+Fz’sin?cos
Fz＝-Fx’sin-Fy’sin+Fz’cos?cos
The normal value Fx, the Fy that calculate by this formula, Fz are applied in the following formula again, calculate the angle of depression (θ) (S16).
Then, can calculate latitude (S17) by the angle of depression (θ) that calculates.
[mathematical formulae 2]
Fh＝(Fx
2+Fy
2)
1/2
Latitude ∝ θ=arctan (Fz/Fh)
Then, in storer, extract the colour temperature of the latitude that is suitable for calculating, carry out image processing (S18～S19).
Then, judge whether power supply closes (S20).
In sum, what the color temperature regulator of projector of the present invention and method can not have an error calculates magnetic field of the earth 3 dimension values (Fx, Fy, Fz), the numerical value that utilization is calculated (Fx, Fy, Fz), the angle of depression (θ) can be asked, the concrete numerical value of latitude can be understood by the angle of depression (θ) of calculating.
So, extract present equipment from storer (400) lining the colour temperature form that the people in area like is set, automatically colour temperature is adjusted, just can be to user's signal of video signal that offers the best.
Claims (4)
1, a kind of colour temperature automatic regulating apparatus of projector is characterized in that: be made of following several parts:
Aware projector is provided with the first sensor of horizontality;
Aware projector is provided with second sensor in magnetic field;
According to the numerical value that first sensor and second sensor senses arrive, measure the latitude that projector is provided with the area, can control the controller that colour temperature is set automatically according to the latitude of measuring;
The colour temperature of setting according to the latitude of said determination is carried out memory storing.
2, the color temperature adjusting method of projector according to claim 1 is characterized in that:
First sensor is made of following several parts:
Can perceive the accelerometer of the error (α, β) that the horizontal/vertical of projector is provided with;
The error (α, β) of perception in accelerometer is carried out the amplifier of amplification processing separately;
In amplifier, carrying out the A/D converter that error numerical value that amplification separately handles is changed to data-signal.
3, the color temperature adjusting method of projector according to claim 1 is characterized in that:
Second sensor is made of following several parts:
Difference perception x, y, first to the 3rd magnetic filter sensor of z direction magnetic field force (Fx, Fy, Fz);
Power (Fx, Fy, Fz) to the magnetic field that perceives in first to the 3rd magnetic filter sensor is imported, the amplifier that amplification is handled;
The A/D converter that the numerical value of amplification in amplifier is changed to data-signal.
4, a kind of color temperature adjusting method that possesses the projector of first, second sensor and storer is characterized in that: comprise following several stages:
By first, second sensor, detect the stage of horizontal perception numerical value and magnetic field force;
Detect above-mentioned error in value, detected error is carried out revisal, calculate stage of normal number according to error;
Calculate the stage of latitude according to the regime values of calculating;
According to the difference of the latitude of calculating, the colour temperature of storing in the storer is carried out the self-adjusting stage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410021368 CN1667495A (en) | 2004-03-12 | 2004-03-12 | Color temperature automatic adjustment apparatus and method for projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410021368 CN1667495A (en) | 2004-03-12 | 2004-03-12 | Color temperature automatic adjustment apparatus and method for projector |
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| Publication Number | Publication Date |
|---|---|
| CN1667495A true CN1667495A (en) | 2005-09-14 |
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|---|---|---|---|
| CN 200410021368 Pending CN1667495A (en) | 2004-03-12 | 2004-03-12 | Color temperature automatic adjustment apparatus and method for projector |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101349856B (en) * | 2007-07-20 | 2010-06-02 | 鸿富锦精密工业（深圳）有限公司 | projection system |
| CN102682738A (en) * | 2012-05-11 | 2012-09-19 | Tcl集团股份有限公司 | Color temperature regulation method and system for display device |
-
2004
- 2004-03-12 CN CN 200410021368 patent/CN1667495A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101349856B (en) * | 2007-07-20 | 2010-06-02 | 鸿富锦精密工业（深圳）有限公司 | projection system |
| CN102682738A (en) * | 2012-05-11 | 2012-09-19 | Tcl集团股份有限公司 | Color temperature regulation method and system for display device |
| CN102682738B (en) * | 2012-05-11 | 2015-08-26 | Tcl集团股份有限公司 | A kind of display device color temperature adjusting method and system |
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