CN103676313B - Illumination intensity adjustment method, device and system - Google Patents
Illumination intensity adjustment method, device and system Download PDFInfo
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- CN103676313B CN103676313B CN201310630249.6A CN201310630249A CN103676313B CN 103676313 B CN103676313 B CN 103676313B CN 201310630249 A CN201310630249 A CN 201310630249A CN 103676313 B CN103676313 B CN 103676313B
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Abstract
The invention provides an illumination intensity adjustment method, device and system. The device comprises a plurality of light sources, a light source mixer, and a light source control unit. The light sources are connected with the light source mixer. The device is characterized by further comprising a photosensitive unit and an output control unit. The photosensitive unit is connected with the light source control unit. The output control unit is connected with the light source mixer. The photosensitive unit is used for sensing illumination intensities of the light sources and outputting the illumination intensities to the light source control unit. The light source control unit is used for controlling the output control unit according to the illumination intensities. The output control unit is used for controlling transmittance of output light from the light source mixer under control of the light source control unit. According to the technical scheme, the illumination intensity adjustment method, device and system has the advantage that efficiency of detecting array substrates can be improved.
Description
Technical field
The present invention relates to technical field of liquid crystal display, particularly to a kind of intensity of illumination control method and its device be
System.
Background technology
Thin Film Transistor-LCD (English：Thin Film Transistor Liquid Crystal
Display, referred to as：TFT-LCD) there is the high and low power consumption of high image quality, space availability ratio, radiationless become with it
The main product in market.At present, the optical detection to the array base palte in TFT-LCD is adjusted using the intensity of illumination controlling power
System is carried out array substrate and is detected.
Fig. 1 is the structural representation of intensity of illumination regulating system of the prior art, as shown in figure 1, this intensity of illumination is adjusted
Section system includes：Multiple light sources, light source power controller, light source blender, light source separative element and scanning element are wherein, many
Individual light source is connected with light source power controller by power control line, and light source is connected with light source blender by optical fiber, and light source mixes
Clutch is connected with light source separative element by light source export interface, and light source separative element is by a plurality of connecting line with scanning element even
Connect, scanning element includes multiple cameras, scanning element is connected with light source power controller by feedback line.
Fig. 2 is the workflow schematic diagram of intensity of illumination regulating system, as shown in Fig. 2 this intensity of illumination regulating system
Workflow is：The target intensity of illumination of system preload settings, the light that multiple light sources provide concentrated by light source blender, by light
Light is evenly distributed to scanning element by a plurality of connecting line by source export interface, and scanning element is after scanning by the reality receiving
Intensity of illumination is compared according to intensity with the target light setting and feeds back to light source power controller by feedback line.If actual illumination is strong
When degree is less than target intensity of illumination, light source power controller increases the intensity of light source by power control line, thus increasing light source
Power, further increase light source blender power so that light source blender is supplied to the intensity of illumination of light source separation system
Increase, until the actual intensity of illumination that shooting unit receives is identical with the target intensity of illumination setting；If actual intensity of illumination
During more than target intensity of illumination, light source power controller reduces the intensity of light source by power control line, thus reducing light source
Power, reduces the power of light source blender further so that the intensity of illumination that light source blender is supplied to light source separative element subtracts
Little, until the actual intensity of illumination that scanning element receives is identical with the target intensity of illumination setting；If actual intensity of illumination etc.
When target intensity of illumination, Taking Pictures recording is carried out by scanning element, and the intensity of illumination recorded is fed back by feedback line
To light source power controller, and then complete the first time of intensity of illumination and adjust process, in the inspection carrying out next array substrate
Survey.
There are the following problems for prior art：When carrying out regulating illumination intensity by way of controlling power, due to being in scanning
Compare actual intensity of illumination and target intensity of illumination again after unit scan, draw actual intensity of illumination and target intensity of illumination
Difference, then increase or reduce the intensity of illumination of light source by light source power controller, sweeping in upper once each scanning element
After retouching, continue to compare the actual intensity of illumination after the adjustment receiving according to intensity with the target light setting, accordingly, it would be desirable to repeatedly
Adjusting to make actual intensity of illumination identical with sets target intensity of illumination, and this regulative mode has serious hysteresis quality,
And need repeatedly to adjust and can be only achieved optimal intensity of illumination it is impossible to ensure detection efficiency, thus reducing array substrate
The efficiency being detected.
Content of the invention
The present invention provides a kind of intensity of illumination control method and its device and system, for improving the detection of array substrate
Efficiency.
For achieving the above object, the present invention provides a kind of intensity of illumination adjusting means, including：Multiple light sources, light source mixing
Device, light source control unit, the plurality of light source is connected with described light source blender, also includes：Photosensitive unit and output control list
Unit, described photosensitive unit is connected with described light source control unit, and described output control unit is connected with described light source blender；
Described photosensitive unit, for perceiving out the intensity of illumination of the plurality of light source, and by described intensity of illumination export to
Described light source control unit；
Described light source control unit, for controlling described output control unit according to described intensity of illumination；
Described output control unit, defeated under the control of described light source control unit, controlling described light source blender
The light transmission capacity of the output light going out.
Preferably, described light source control unit is specifically for comparing described intensity of illumination and default intensity of illumination whether phase
Deng；
Described output control unit is specifically for comparing out described intensity of illumination and default light when described light source control unit
According to intensity unequal when, under the control of described light source control unit, control the output of described light source blender output light saturating
Light quantity, so that described intensity of illumination is equal with default intensity of illumination.
Preferably, described output control unit is light valve, and described light source control unit is specifically for controlling described light valve
Aperture.
Preferably, described light valve be shaped as sector.
Preferably, the adjustable range of the aperture of described light valve is：0-360 degree.
For achieving the above object, the present invention provides a kind of intensity of illumination regulating system, including：Intensity of illumination adjusting means,
Light source separative element and scanning element, described intensity of illumination adjusting means adopts above-mentioned intensity of illumination adjusting means.
For achieving the above object, the present invention provides a kind of intensity of illumination control method, and the method is based on intensity of illumination and adjusts
Device, intensity of illumination adjusting means includes：Multiple light sources, light source blender, light source control unit, the plurality of light source with described
Light source blender connects it is characterised in that also including：Photosensitive unit and output control unit, described photosensitive unit and described light
Source control unit connects, and described output control unit is connected with described light source blender；
The method includes：
Described photosensitive unit perceives out the intensity of illumination of the plurality of light source, and described intensity of illumination is exported to described light
Source control unit；
Described light source control unit controls described output control unit according to described intensity of illumination；
Described output control unit, under the control of described light source control unit, controls the defeated of described light source blender output
Go out the light transmission capacity of light.
Preferably, described output control unit is light valve, and described light source control unit is specifically for controlling described light valve
Aperture.
Preferably, the method specifically includes：
Default intensity of illumination and the initial opening of light valve；
Whether described light source control unit compares described intensity of illumination equal with default intensity of illumination；
When described light source control unit compares out described intensity of illumination and default intensity of illumination is unequal, described light source control
The aperture of the described light valve of control of unit processed, and then control the light transmission capacity of the output light of described light source blender output, so that institute
State intensity of illumination equal with default intensity of illumination；
Scanning element carries out Taking Pictures recording；
Complete regulation process.
Preferably, the aperture of described light valve is adjustable.
Preferably, the adjustable range of the aperture of described light valve is：0-360 degree.
In the intensity of illumination control method of present invention offer and its device and system, this intensity of illumination adjusting means includes：
Multiple light sources, light source blender, light source control unit, multiple light sources are connected with light source blender, in intensity of illumination adjusting means
Set up photosensitive unit and output control unit, photosensitive unit perceives out the intensity of illumination of the plurality of light source, and by intensity of illumination
Export to described light source control unit；Light source control unit controls described output control unit according to intensity of illumination；Output control
Unit, under the control of light source control unit, controls the light transmission capacity of the output light of light source blender output, can be to array base
Before plate is tested, intensity of illumination is automatically adjusted to default intensity of illumination, so that each array substrate is carried out
Intensity of illumination during detection is all in optimal intensity of illumination, and then improves the detection efficiency of array substrate.
Brief description
Fig. 1 is the structural representation of intensity of illumination regulating system of the prior art；
Fig. 2 is the workflow schematic diagram of intensity of illumination regulating system；
The structural representation of the intensity of illumination adjusting means that Fig. 3 provides for the embodiment of the present invention one；
Fig. 4 a-4d is operated in the structural representation of different apertures for the light valve in Fig. 3；
The structural representation of the intensity of illumination regulating system that Fig. 5 provides for the embodiment of the present invention two；
The schematic flow sheet of the intensity of illumination control method that Fig. 6 provides for the embodiment of the present invention three；
The schematic flow sheet of the intensity of illumination control method that Fig. 7 provides for the embodiment of the present invention four.
Specific embodiment
For making those skilled in the art more fully understand technical scheme, below in conjunction with the accompanying drawings the present invention is provided
A kind of intensity of illumination control method and its device and system be described in further detail.
The structural representation of the intensity of illumination adjusting means that Fig. 3 provides for the embodiment of the present invention one, as shown in figure 3, this light
Include according to intensity adjustment device：Multiple light sources 1, light source blender 3, light source control unit 2, multiple light sources 1 and light source blender 3
Connect, also include：Photosensitive unit 7 and output control unit 5, photosensitive unit 7 is connected with light source control unit 2, output control list
Unit 5 is connected with light source blender 3；Photosensitive unit 7, for perceiving out the intensity of illumination of multiple light sources 1, and intensity of illumination is exported
To light source control unit 2；Light source control unit 2, for controlling output control unit 5 according to intensity of illumination；Output control unit
5, under the control of light source control unit 2, controlling the light transmission capacity of the output light of light source blender 3 output.
Specifically, multiple light sources 1 provide the light with different intensities of illumination respectively, and multiple light sources 1 are passed through a plurality of respectively
Optical fiber 9 is connected with light source blender 3, the optical superposition with different intensities of illumination that multiple light sources 1 are provided by light source blender 3
Get up and by light uniformization, and then the intensity of illumination of light is homogenized.Pass through in the present embodiment to change the transit dose of light output
Namely control a mode of intensity of illumination, it is alternatively possible to control the intensity of illumination of light by adding gray scale mirror (ND mirror).
Photosensitive unit 7 is separately positioned on a plurality of optical fiber 9, and is connected with light source control unit 2 by photoreceptor signal line 8.
Further, whether light source control unit 2 is equal with default intensity of illumination specifically for comparing intensity of illumination；Output
Control unit 5 specifically for when light source control unit 2 compare out intensity of illumination unequal with default intensity of illumination when, in light source control
Under the control of unit 2 processed, control the light transmission capacity of the output light of light source blender 3 output, so that intensity of illumination is strong with default illumination
Degree is equal.
Preferably, output control unit 5 is light valve 10, and light source control unit 2 is specifically for controlling the aperture of light valve 10.Need
It is noted that the aperture of light valve 10 refers to：The opening degree of light valve.Wherein, light valve 10 be shaped as sector, light valve 10 sets
Put on optical fiber, optical fiber includes：Fibre core 11, covering 12 and overcoat 13, light valve 10 extends to fibre core 11 in sector, thus sheltering from
The output quantity of output light.The adjustable range of the aperture of light valve is：0-360 degree.Fig. 4 a-4c is the different aperture of the light valve in Fig. 3
Structural representation, as shown in fig. 4 a, the aperture of light valve is 120 degree, and as shown in Figure 4 b, the aperture of light valve is 180 degree, such as Fig. 4 c
Shown, the aperture of light valve is 270 degree, and as shown in figure 4d, the aperture of light valve is 15 degree.
Specifically, photosensitive unit 7 perceives out the intensity of illumination of multiple light sources 1, and intensity of illumination is exported to light source control
Unit 2；Light source control unit 2 controls output control unit 5 according to intensity of illumination；Output control unit 5 is in light source control unit 2
Control under, control light source blender 3 output output light light transmission capacity, therefore, it can carry out testing it in array substrate
Before, intensity of illumination is automatically adjusted to default intensity of illumination, so that illumination when each array substrate is detected
Intensity all in optimal intensity of illumination, further increases the detection efficiency of array substrate.
In the intensity of illumination adjusting means that the present embodiment provides, this intensity of illumination adjusting means includes：Multiple light sources, light source
Blender, light source control unit, multiple light sources are connected with light source blender, set up in intensity of illumination adjusting means photosensitive unit and
Output control unit, photosensitive unit perceives out the intensity of illumination of the plurality of light source, and intensity of illumination is exported to described light source
Control unit；Light source control unit controls described output control unit according to intensity of illumination；Output control unit is in light source control
Under the control of unit, control light source blender output output light light transmission capacity, can before array substrate is tested,
Intensity of illumination is automatically adjusted to default intensity of illumination, so that intensity of illumination when each array substrate is detected
All in optimal intensity of illumination, thus improving the detection efficiency of array substrate.
The structural representation of the intensity of illumination regulating system that Fig. 5 provides for the embodiment of the present invention two, as shown in figure 5, this light
Include according to intensity adjustment system：Intensity of illumination adjusting means, light source separative element 4 and scanning element 6, intensity of illumination adjusting means
Including：Multiple light sources 1, light source blender 3, light source control unit 2, multiple light sources 1 are connected with light source blender 3, also include：Sense
Light unit 7 and output control unit 5, photosensitive unit 7 is connected with light source control unit 2, output control unit 5 and light source blender
3 connections；Photosensitive unit 7, for perceiving out the intensity of illumination of multiple light sources 1, and intensity of illumination is exported to light source control unit
2；Light source control unit 2, for controlling output control unit 5 according to intensity of illumination；Output control unit 5, in light source control
Under the control of unit 2 processed, control the light transmission capacity of the output light of light source blender 3 output.
Wherein, light source separative element 4 is used for exporting to scanning the light in light source blender 3 by output control unit 5
Unit 6, scanning element 6 specifically may include multiple cameras, for Taking Pictures recording.
Specifically, multiple light sources 1 are connected with light source blender 3 by a plurality of optical fiber 9 respectively, and light source blender 3 is concentrated many
Light that individual light source 1 provides by light uniformization, and then the intensity of illumination of light is homogenized.Photosensitive unit 7 is separately positioned on many
On bar optical fiber 9, and it is connected with light source control unit 2 by photoreceptor signal line 8.
Further, whether light source control unit 2 is equal with default intensity of illumination specifically for comparing intensity of illumination；Output
Control unit 5 specifically for when light source control unit 2 compare out intensity of illumination unequal with default intensity of illumination when, in light source control
Under the control of unit 2 processed, control the light transmission capacity of the output light of light source blender 3 output, so that intensity of illumination is strong with default illumination
Degree is equal.
Preferably, output control unit 5 is light valve 10, and light source control unit 2 is specifically for controlling the aperture of light valve 10.Need
It is noted that the aperture of light valve 10 refers to：The opening degree of light valve.Wherein, light valve 10 be shaped as sector, light valve 10 sets
Put on optical fiber, optical fiber includes：Fibre core 11, covering 12 and overcoat 13, light valve 10 extends to fibre core 11 in sector, thus sheltering from
The output quantity of output light.The adjustable range of the aperture of light valve is：0-360 degree.
Photosensitive unit 7 perceives out the intensity of illumination of multiple light sources 1, and intensity of illumination is exported to light source control unit 2；Light
Source control unit 2 controls output control unit 5 according to intensity of illumination；Output control unit 5 is in the control of light source control unit 2
Under, control the light transmission capacity of the output light of light source blender 3 output, therefore, it can before array substrate is tested, by light
It is automatically adjusted to default intensity of illumination according to intensity, so that intensity of illumination when each array substrate is detected all exists
Optimal intensity of illumination, further increases the detection efficiency of array substrate.
In the intensity of illumination regulating system that the present embodiment provides, this system includes intensity of illumination adjusting means, light source separates
Unit and scanning element：This intensity of illumination adjusting means includes：Multiple light sources, light source blender, light source control unit, Duo Geguang
Source is connected with light source blender, sets up photosensitive unit and output control unit in intensity of illumination adjusting means, and photosensitive unit perceives
Go out the intensity of illumination of the plurality of light source, and intensity of illumination is exported to described light source control unit；Light source control unit according to
Intensity of illumination controls described output control unit；Output control unit, under the control of light source control unit, controls light source mixing
Intensity of illumination can be automatically adjusted to preset before array substrate is tested by the light transmission capacity of the output light of device output
Intensity of illumination so that intensity of illumination when each array substrate is detected is all in optimal intensity of illumination, thus
Improve the detection efficiency of array substrate.
The schematic flow sheet of the intensity of illumination control method that Fig. 6 provides for the embodiment of the present invention three, as shown in fig. 6, the party
Method is based on intensity of illumination adjusting means, and intensity of illumination adjusting means includes：Multiple light sources, light source blender, light source control unit,
The plurality of light source is connected it is characterised in that also including with described light source blender：Photosensitive unit and output control unit, institute
State photosensitive unit to be connected with described light source control unit, described output control unit is connected with described light source blender；
The method includes：
Step S11, described photosensitive unit perceive out the intensity of illumination of the plurality of light source, and described intensity of illumination is exported
To described light source control unit；
Step S11, described light source control unit control described output control unit according to described intensity of illumination；
Step S11, described output control unit, under the control of described light source control unit, control described light source blender
The light transmission capacity of the output light of output.
In the intensity of illumination control method that the present embodiment provides, the method is based on intensity of illumination adjusting means, and this illumination is strong
Degree adjusting means includes：Multiple light sources, light source blender, light source control unit, multiple light sources are connected with light source blender, illumination
Photosensitive unit and output control unit is set up, the illumination that photosensitive unit perceives out the plurality of light source is strong in intensity adjustment device
Degree, and intensity of illumination is exported to described light source control unit；Light source control unit controls described output control according to intensity of illumination
Unit processed；Output control unit, under the control of light source control unit, controls the light transmission capacity of the output light of light source blender output,
Before array substrate is tested, intensity of illumination can be automatically adjusted to default intensity of illumination, so that every time
Intensity of illumination when array substrate is detected is all in optimal intensity of illumination, thus improving the detection effect of array substrate
Rate.
The schematic flow sheet of the intensity of illumination control method that Fig. 7 provides for the embodiment of the present invention four, as shown in fig. 7, the party
Method is based on intensity of illumination adjusting means, and intensity of illumination adjusting means includes：Multiple light sources, light source blender, light source control unit,
Multiple light sources are connected it is characterised in that also including with light source blender：Photosensitive unit and output control unit, photosensitive unit with
Light source control unit connects, and output control unit is connected with light source blender；Wherein, output control unit is light valve, light source control
Unit processed is specifically for controlling the aperture of light valve；
The method includes：
The initial opening of step S21, default intensity of illumination and light valve；
Whether step S22, described light source control unit compare described intensity of illumination equal with default intensity of illumination；
Step S23, the aperture of 360 degree of regulation light valves of described light source control unit；
Specifically, when described light source control unit compares out described intensity of illumination and default intensity of illumination is unequal, institute
State the aperture of the described light valve of control of light source control unit, and then control the printing opacity of the output light of described light source blender output
Amount, so that described intensity of illumination is equal with default intensity of illumination；
Step S24, scanning element are scanned and Taking Pictures recording；
Step S25, complete regulation process.
Specifically, multiple light sources 1 are connected with light source blender 3 by a plurality of optical fiber 9 respectively, and light source blender 3 is concentrated many
Light that individual light source 1 provides by light uniformization, and then the intensity of illumination of light is homogenized.Photosensitive unit 7 is separately positioned on many
On bar optical fiber 9, and it is connected with light source control unit 2 by photoreceptor signal line 8.
Further, whether light source control unit 2 is equal with default intensity of illumination specifically for comparing intensity of illumination；Output
Control unit 5 specifically for when light source control unit 2 compare out intensity of illumination unequal with default intensity of illumination when, in light source control
Under the control of unit 2 processed, control the light transmission capacity of the output light of light source blender 3 output, so that intensity of illumination is strong with default illumination
Degree is equal.
Preferably, output control unit 5 is light valve 10, and light source control unit 2 is specifically for controlling the aperture of light valve 10.Need
It is noted that the aperture of light valve 10 refers to：The opening degree of light valve.Wherein, light valve 10 be shaped as sector, light valve 10 sets
Put on optical fiber, optical fiber includes：Fibre core 11, covering 12 and overcoat 13, light valve 10 extends to fibre core 11 in sector, thus sheltering from
The output quantity of output light.
Specifically, photosensitive unit 7 perceives out the intensity of illumination of multiple light sources 1, and intensity of illumination is exported to light source control
Unit 2；Light source control unit 2 controls output control unit 5 according to intensity of illumination；Output control unit 5 is in light source control unit 2
Control under, control light source blender 3 output output light light transmission capacity, therefore, it can carry out testing it in array substrate
Before, intensity of illumination is automatically adjusted to default intensity of illumination, so that illumination when each array substrate is detected
Intensity all in optimal intensity of illumination, further increases the detection efficiency of array substrate.
In the intensity of illumination control method that the present embodiment provides, the method is based on intensity of illumination adjusting means, and this illumination is strong
Degree adjusting means includes：Multiple light sources, light source blender, light source control unit, multiple light sources are connected with light source blender, illumination
Photosensitive unit and output control unit is set up, the illumination that photosensitive unit perceives out the plurality of light source is strong in intensity adjustment device
Degree, and intensity of illumination is exported to described light source control unit；Light source control unit controls described output control according to intensity of illumination
Unit processed；Output control unit, under the control of light source control unit, controls the light transmission capacity of the output light of light source blender output,
Before array substrate is tested, intensity of illumination can be automatically adjusted to default intensity of illumination, so that every time
Intensity of illumination when array substrate is detected is all in optimal intensity of illumination, thus improving the detection effect of array substrate
Rate.
It is understood that the embodiment of above principle being intended to be merely illustrative of the present and the exemplary enforcement adopting
Mode, but the invention is not limited in this.For those skilled in the art, in the essence without departing from the present invention
In the case of god and essence, various modifications and improvement can be made, these modifications and improvement are also considered as protection scope of the present invention.
Claims (12)
1. a kind of intensity of illumination adjusting means, including：Multiple light sources, light source blender, light source control unit, the plurality of light source
It is connected it is characterised in that also including with described light source blender：Photosensitive unit and output control unit, described photosensitive unit with
Described light source control unit connects, and described output control unit is connected with described light source blender；
Described photosensitive unit, for perceiving out the intensity of illumination of the plurality of light source, and described intensity of illumination is exported to described
Light source control unit；
Described light source control unit, for controlling described output control unit according to described intensity of illumination；
Described output control unit, under the control of described light source control unit, controlling described light source blender output
The light transmission capacity of output light.
2. intensity of illumination adjusting means according to claim 1 it is characterised in that described light source control unit specifically for
Compare described intensity of illumination whether equal with default intensity of illumination；
Described output control unit is specifically for when described light source control unit, to compare out described intensity of illumination strong with default illumination
When spending unequal, under the control of described light source control unit, control the light transmission capacity of the output light of described light source blender output,
So that described intensity of illumination is equal with default intensity of illumination.
3. intensity of illumination adjusting means according to claim 1 it is characterised in that described output control unit be light valve,
Described light source control unit is specifically for controlling the aperture of described light valve.
4. intensity of illumination adjusting means according to claim 3 it is characterised in that described light valve be shaped as sector.
5. intensity of illumination adjusting means according to claim 4 is it is characterised in that the adjustable range of the aperture of described light valve
For：0-360 degree.
6. a kind of intensity of illumination regulating system, including：Intensity of illumination adjusting means, light source separative element and scanning element, it is special
Levy and be, described intensity of illumination adjusting means adopts the arbitrary described intensity of illumination adjusting means of the claims 1-5.
7. it is characterised in that the method is based on intensity of illumination adjusting means, intensity of illumination is adjusted a kind of intensity of illumination control method
Device includes：Multiple light sources, light source blender, light source control unit, the plurality of light source is connected with described light source blender, its
It is characterised by, also include：Photosensitive unit and output control unit, described photosensitive unit is connected with described light source control unit, institute
State output control unit to be connected with described light source blender；
The method includes：
Described photosensitive unit perceives out the intensity of illumination of the plurality of light source, and described intensity of illumination is exported to described light source control
Unit processed；
Described light source control unit controls described output control unit according to described intensity of illumination；
Described output control unit, under the control of described light source control unit, controls the output light of described light source blender output
Light transmission capacity.
8. intensity of illumination control method according to claim 7 it is characterised in that described output control unit be light valve,
Described light source control unit is specifically for controlling the aperture of described light valve.
9. intensity of illumination control method according to claim 8 is it is characterised in that the method specifically includes：
Default intensity of illumination and the initial opening of light valve；
Whether described light source control unit compares described intensity of illumination equal with default intensity of illumination；
When described light source control unit compares out described intensity of illumination and default intensity of illumination is unequal, described light source control list
The aperture of the described light valve of control of unit, and then control the light transmission capacity of the output light of described light source blender output, so that described light
Equal with default intensity of illumination according to intensity；
Scanning element carries out Taking Pictures recording；
Complete regulation process.
10. intensity of illumination control method according to claim 9 it is characterised in that described light valve be shaped as sector.
11. intensity of illumination control methods according to claim 10 are it is characterised in that the aperture of described light valve is adjustable.
12. intensity of illumination control methods according to claim 11 are it is characterised in that the regulation model of the aperture of described light valve
Enclose for：0-360 degree.
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| CN101608950A (en) * | 2009-07-21 | 2009-12-23 | 宁书存 | Luminance detector of universal CCD camera |
| CN103000142A (en) * | 2012-12-14 | 2013-03-27 | 江苏中科天安智联科技有限公司 | Backlight brightness self-adaption adjusting circuit for intelligent vehicle-mounted thin film transistor (TFT) liquid crystal display (LCD) |
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