CN108366252A - Video camera resolving power test detection device - Google Patents
Video camera resolving power test detection device Download PDFInfo
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- CN108366252A CN108366252A CN201810023083.4A CN201810023083A CN108366252A CN 108366252 A CN108366252 A CN 108366252A CN 201810023083 A CN201810023083 A CN 201810023083A CN 108366252 A CN108366252 A CN 108366252A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
- H04N17/002—Diagnosis, testing or measuring for television systems or their details for television cameras
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B43/00—Testing correct operation of photographic apparatus or parts thereof
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- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Spectrometry And Color Measurement (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The present invention relates to a kind of video camera resolving power test detection devices.The video camera resolving power test detection device of one embodiment of the invention includes video camera detection module, and the video camera detection module has：Light source portion forms the chest shape of bottom opening, is equipped with multiple light sources, and multiple light sources can be controlled individually；Light diffusion part is installed on the inside in the light source portion, forms the spherical shape of bottom opening；And light source control portion, the light source is controlled according to the light characteristic set respectively.
Description
Technical field
The present invention relates to a kind of detection devices of video camera, in more detail, random and accurate change can be carried out to light characteristic
More, the video camera resolving power test for the focusing operation that can be smoothed out the camara module for loading bugeye lens is especially constituted
Use detection device.
Background technology
Video camera by be incident on the light of camera lens inside video camera film surface exposure or can be image pass
Sensor provides signal and forms static images.If no light video camera will be unable to be shot, therefore for camera light
Line is absolutely essential input signal.
Assuming that shooting blank sheet of paper with video camera, paper will cannot be distinguished completely if it is the dark environment in not light
Form and color.This is because if no input signal there will not be output signal.
It can be actually happened at the case where being shot under environment very dark in ambient enviroment, therefore in evaluation clarity
When need evaluate that image can be presented under how many illuminance environment, it is necessary to adjust illumination to be carried out to clarity thus
Evaluation.
In addition, the color for the intrinsic color and object that light has, which reacts, makes fixed relevant colors for example, making
Red seems the redder colour temperature (Color Temperature) for being called light and having.
The vision of people can voluntarily correspond to the variation of this colour temperature, recognize observation even if under the different light source of colour temperature
Know for same color, but since what video camera or image sensor will be seen that is showed strictly according to the facts without filtering,
The photograph shot under incandescent lamp is at red, and the photograph au bleu shot when dawn.
Usually there is low colour temperature at red light source, it can be carried out the light of au bleu with numerical value with high colour temperature
Performance, incandescent lamp have the colour temperature of about 3,000K (K is the abbreviation of the unit K alvin of colour temperature), green faint light source when dawn
With the about colour temperature of 10,000K, the higher numerical value au bleu on the basis of 5000K, low numerical value is at red.
Therefore, for the evaluation of the clarity for the video camera that can be used in a variety of contexts, the image sensing of video camera
The manufacturer of device needs the colour temperature (ColorTemperature) for controlling the physical quantity as light source colour to embody plurality of color
The artificial light source of temperature.
Also, white reference object, the designated color reference object that video camera will be irradiated by the light of multiple color temperatures characteristic
Etc. standards reference object as benchmark, and adjust video camera either the intensity (Gain) of image sensor or adjust reference white
(White Point) or the signal value of reference black (Black Point) keep the ratio of rgb signal identical, also, it is necessary to
To being checked according to the clarity embodiment of this illumination or the video camera of colour temperature manufacture.
It is usually used in the integrating sphere that has of the test of this video camera, this integrating sphere is designed to uniformly reflect and divide
The light of identical amount is projected in the opening portion of astigmatism line and integrating sphere, and plays a small amount of light not having lossy reception and registration
To the effect of opening portion, therefore maximum effect can be played with minimum energy under the clarity evaluation environment for needing high brightness
Fruit.
Currently in order to carrying out evaluation to the clarity of video camera is applicable in the integrating sphere for having darkroom, in order to ensure uniform bright
The shadow surface of degree at least needs to form 15 areas, and the chest of excessive bulk is used in order to ensure the uniform brightness of light source shadow surface
Shape light source is irradiated in left and right evaluates environment to embody clarity, and is maintained while maintaining the uniformity of shadow surface
The maximum brightness of 1000Lux needs to consume the electric power of 3000W or more.
Moreover, the focusing operation as the camara module for loading bugeye lens (fish eye lens, fish-eye lens)
Or the technology of Image detection has the method for being formed certain angle by multiple general area sources and being constituted and uses integrating sphere by one
As reflecting material of the light inside integrating sphere that projects of area source uniform diffusing light by the method that constitutes.
Wherein, the method being made of multiple general area sources has the problem of can not arbitrarily changing colour temperature, does not simply fail to
Even distance of the embodiment from video camera to area source and need asking using multiple light sources to detect the video camera of 180 degree or more
Topic.
But the use of the method being detected according to the integrating sphere currently formed is difficult random change colour temperature, in order to make product
The volume needs of bulb separation inner homogeneous multiple reflection light integrating sphere become larger, due to influencing light when especially inside is loaded into camara module
The reflection of line and the uniformity need to form the integrating sphere of bigger.Therefore, because the production space of lines of mass production video camera is narrow
Problem that is narrow therefore having output capacity low.
It is set therefore, it is necessary to develop and constitute the detection of completely new form compact and that multiple color temperatures and illumination can be applicable in
It is standby.
Invention content
Technical problem to be solved
The present invention proposes that mesh of the invention is as follows in order to solve the problems, such as presence in the prior art as described above.
First, the purpose of the present invention is to provide can execute to be equipped with the bugeye lens (fish that shooting angle is more than 180 degree
Glasses head) camara module focusing operation or image check video camera resolving power test detection device.
Second, the purpose of the present invention is to provide can in accurate and easy adjustment equipment the video camera of colour temperature and illumination it is clear
Clear degree test detection device.
Therefore third can be effectively performed the purpose of the present invention is to provide the structure by compact overall structure and set
Set and run, and can improve space with video camera resolving power test detection device.
4th, the purpose of the present invention is to provide the video camera resolving power test detection devices being easy to make.
5th, the purpose of the present invention is to provide the video cameras in the center that light measuring sensor can be located to light diffusion part
Resolving power test detection device.
The problem of the present invention is not limited to problem as mentioned above, general technical staff of the technical field of the invention
Unmentioned other problems can be clearly understood that from record below.
Solve the scheme of technical problem
The video camera resolving power test detection device of one embodiment of the invention includes video camera to achieve the above object
Detection module, the camera shooting machine testing, which is touched, to be had：Light source portion, light diffusion part and light source control portion.
The light source portion forms the chest shape of bottom opening, is equipped with multiple light sources, and multiple light sources can be controlled individually
System.
The smooth diffusion part is installed on the inside in the light source portion, forms the spherical shape of bottom opening.
Light source control portion controls the light source respectively according to the light characteristic set.
The control unit is uniform in order to make the light characteristic of the light of the arrival smooth diffusion part, controls the light source respectively.
The smooth diffusion part is formed as, from center toward the section of surrounding on, in 240 degree between the opening portion both ends of bottom
Angle.
Each face in the light source portion, by more than one be used for install multiple light sources printed circuit board link and
At.
Moreover, the detection device of the present embodiment further includes exterior case, which forms the chest shape of bottom opening,
And inside is configured with the light source portion.
Moreover, further including the fixed plate for fixing the light source portion, the smooth diffusion part and the exterior case.
In addition, having optical measuring module, the optical measuring module includes：Light measuring sensor is located at the smooth diffusion part
Inside, the light characteristic for measuring the light by the irradiation of the interior surface of the smooth diffusion part；And control unit is measured, it is right
The light characteristic inputted by the light measuring sensor is compared with the level of the practical light source and extrapolates corrected value.
The optical measuring module includes moving portion, the moving portion be used for adjust the light measuring sensor height and
Position makes the light measuring sensor be located at the center of the smooth diffusion part.
The optical measuring module includes rotating part, and the rotating part with horizontal direction or hangs down the light measuring sensor
Histogram to rotary shaft pivot about, and the optical measuring module can be measured from all positions of the smooth diffusion part
Set the light of irradiation.
Moreover, the measurement control unit exports the corrected value to the light source control portion, the light source control portion is
Keep the arrival uniform to the light characteristic of the light of all positions of the smooth diffusion part, according to by the measurement control unit input
Value controls the light source respectively.
Moreover, having coloration illumination photometer, the coloration illumination photometer is installed on the opening portion bottom of the smooth diffusion part, is used for
Measure the colour temperature and illuminance of the light irradiated by the smooth diffusion part, also, the light source control portion will have been set
Value is compared with the value inputted by the coloration illumination photometer is confirmed whether that unanimously controlling the light source later makes both one
It causes.
Advantageous effect
The effect of the present invention as constructed as above is carried out as described below.
First, the video camera resolving power test detection device of one embodiment of the invention is due to having spherical light diffusion
Portion, therefore the focusing of the camara module for the bugeye lens (fish eye lens) that assembly shooting angle is more than 180 degree can be executed
Operation or Image detection.
Second, the video camera resolving power test detection device of one embodiment of the invention will be defeated by light detecting sensors
The value entered controls each light source as benchmark makes its characteristic uniformly therefore can be accurate to adjust the light on arrival light diffusion part surface
Really and it is easy that the light characteristic in detection device is adjusted.
Third, the video camera resolving power test detection device of one embodiment of the invention is relative to multiple area source shapes
The method that has a certain degree and opposite want small therefore in narrow space using the size of the method detection device of integrating sphere
Video camera can be detected.It is also applied for needing the production line in narrow Space-time idea large-tonnage product as a result,.
4th, the video camera resolving power test detection device of an embodiment according to the present invention, since light source portion is formed
Therefore chest shape shape has the advantages that be easy to make.
5th, the video camera resolving power test detection device of an embodiment according to the present invention has light detection module
Can not only light measuring sensor be used only to utilize a light source that can also embody various colour temperature, light measurement can also be sensed
The mediad omnidirection that device is located at light diffusion part is rotated, therefore can be detected and be irradiated from all positions of light diffusion part
Light.Light due to light source control thus arrival light diffusion part surface using it can embody uniform light characteristic.
The effect of the present invention is not limited to above-described effect, general technical staff of the technical field of the invention
Other unmentioned effects can be clearly understood that from the record of protection scope of the present invention.
Description of the drawings
Following description set out is the explanation of the preferred embodiment only to this explanation, the abstract and relevant attached drawing one
It is more conducive to understand with when reading.The present invention illustrates preferred embodiment in the accompanying drawings in order to illustrate.But, it is to be understood that this
Application should not be limited to accurate configuration and means described in attached drawing.
Fig. 1 is the video camera detection module for the video camera resolving power test detection device for indicating one embodiment of the invention
Exploded perspective view.
Fig. 2 is the video camera detection module for the video camera resolving power test detection device for indicating one embodiment of the invention
Combination figure.
Fig. 3 is the video camera detection module for the video camera resolving power test detection device for indicating one embodiment of the invention
Light diffusion part sectional view.
Fig. 4 is the optical measuring module for the video camera resolving power test detection device for indicating one embodiment of the invention
Figure.
Fig. 5 is the light source for indicating the video camera resolving power test detection device such as one embodiment of the invention, flash ranging
The block diagram of the connection relation of quantity sensor and control unit.
Fig. 6 is the video camera detection module for the video camera resolving power test detection device for indicating one embodiment of the invention
Bottom installation coloration illumination photometer figure.
Reference numeral
100：Video camera detection module 110：Exterior case
120：Light source portion 122：Printed circuit board
124：Light source 126：Light source control portion
130：Light diffusion part 140：Operation portion
150：Fixed plate 152：Opening portion
200：Optical measuring module 210：Light measuring sensor
220：Moving portion 230：Rotating part
232：Rotate horizontally motor 234：Vertical rotary motor
240：Measure control unit 300：Coloration illumination photometer
Specific implementation mode
The embodiment of the present invention refer to the attached drawing is described in detail.But attached drawing is only used for more easily to present disclosure
It illustrates, the scope of the present invention should not limit to the model of attached drawing for general technical staff of the technical field of the invention
It is obvious to enclose.
Moreover, in illustrating the explanation of the embodiment of the present invention in advance for identical work can inscape use it is same
Title and same symbol, but it is actually entirely different with the inscape of technology before.
Also, the term used in this explanation is served only for the explanation to specific embodiment, and the present invention is not limited thereto.It is single
Several performances explicitly indicates the performance that can be understood as including plural number under the premise of different meanings not in context.This explanation
The terms such as middle "comprising" or " having " are used to specify feature described in specification, number, stage, action, inscape, portion
The presence of part or the composition being combined, it is thus understood that will not realize exclusion one or above another characteristic or
Number, the stage, moved, the composition that inscape, component are either combined there is a possibility that or it is additional.
The video camera resolving power test of one embodiment of the invention is illustrated with detection device below with reference to attached drawing.
Fig. 1 is the video camera detection module for the video camera resolving power test detection device for indicating one embodiment of the invention
Exploded perspective view, Fig. 2 be indicate one embodiment of the invention video camera resolving power test detection device camera shooting machine examination
Survey the combination figure of module.
As shown in Figures 1 and 2, the video camera resolving power test detection device of one embodiment of the invention includes video camera
Detection module 100, the video camera detection module 100 have exterior case 110, light source portion 120, light diffusion part 130 and light
Source control unit 126.
Exterior case 110 is used to constitute the appearance of the video camera resolving power test detection device of the present embodiment, in formation
The shape in portion space and bottom opening.Moreover, exterior case 110 can have the chest shape that 5 faces other than bottom are formed
Shape.Also, it can be made of the material of blocking extraneous light inside exterior case 110 to form darkroom shape.Also, it is external
Casing 110 is equipped with the whole output level that operation portion 140 is used to set light source 124.
Light source portion 120 is installed on the inner space of exterior case 110, forms the small chest shape of volume ratio exterior case 110,
Opening is formed on 120 same bottom of light source portion.Each face of 120 inside of chest shape light source portion is equipped with multiple light sources 124, Duo Geguang
Source 124 can individually be controlled.At this point, 124 applicable LED of light source (Light Emitting Diode).
Each face other than the bottom of opening in light source portion 120 is by more than one for installing multiple light sources 124
Printed circuit board 122 is constituted.Each face in light source portion 120 can be made of a printed circuit board 122, or by multiple
Printed circuit board 122 connects and is formed a face in light source portion 120.Also, printed circuit board 122 can be used for by smearing
The material of the inner reflection light in light source portion 120.
Multiple light sources 120 are mounted on the direction towards 120 inside of light source portion on each printed circuit board 122, each
Light source 124 can be controlled respectively.At this point, being therefore disclosed technology is omitted to it since each light source 124 embodies multiple color temperatures
Explanation.
Fig. 3 is the video camera detection module for the video camera resolving power test detection device for indicating one embodiment of the invention
Light diffusion part sectional view.
Light diffusion part 130 is installed on the inside in light source portion 120, as shown in figure 3, forming the spherical shape of bottom opening.Light is spread
Portion 130 is to be diffused the light projected from point or linear light source along face whole face is made to seem to form uniform color
And the inscape of brightness, the light diffusion part 130 of the present embodiment, which is played, to be received light from light source portion 120 and light is made to expand along light
The whole diffusion in the portion of dissipating 130 and the effect that light is provided again to the inside of light diffusion part 130.I.e., light diffusion part 130 plays light
The effect of line diffuser plate, for this purpose, the propylene resin etc. of the applicable film morphology of the material of light diffusion part 130 or high-purity can
With the material of uniform diffusing light.
In particular, the opening portion both ends of section upper bottom portion of the light diffusion part 130 from center toward surrounding form 240 degree of angle.
It is identical with this, the bugeye lens that outfit shooting angle is more than 180 degree can be executed due to having spherical light diffusion part 130
The focusing operation or image check of the camara module of (fish eye lens).
Light source control portion 126 controls light source 124 respectively according to the light characteristic set.The light source control portion of the present embodiment
126 as shown, the inside of exterior case 110 can be provided to, and can also be further provided in outside.Pass through light source control portion 126
Light source 124 can be opened voluntarily, the electricity for the individual light source that output valve records when can be according to the output level in setting operation portion 140
It is set based on flat.
Light source portion 120 forms chest shape in the present embodiment, inside can be located spherical light diffusion part 130 from each light source
The distance of 124 to light diffusion part 130 can be differed all.
Therefore, light source control portion 126 can control the light that light source 124 makes all positions of arrival light diffusion part 130 respectively
Light characteristic it is uniform.For example, the illumination relative to the light source 124 close apart from light diffusion part 130, is improved apart from light diffusion part 130
The illumination of remote light source 124 keeps light characteristic uniform to adjust the light on the surface for arriving at light diffusion part 130.
Also, the bottom in light source portion 120, light diffusion part 130 and exterior case 110 has wants for fixed respectively form
The fixed plate 150 of element.Fixed plate 150 can form the light measuring sensor 210 told after opening portion 152 is used for and be inserted into light diffusion
Inside portion 130.
Can have although not illustrated in detail in attached drawing, between fixed plate 150 and exterior case 110, light source portion 120 another
The masking substance that outer elastomeric element is constituted either by coating or by dark material can more perfectly stop external
Light.
As described above, the video camera resolving power test detection device of one embodiment of the invention is due to 120 shape of light source portion
Therefore have the advantages that be easy to make at chest shape.Also, relative to the method being had a certain degree with multiple area source shapes and
It wants small using the size of the method detection device of integrating sphere is opposite, therefore video camera can also be detected in narrow space.As a result,
It is also applied for needing the production line in narrow Space-time idea large-tonnage product.
Fig. 4 is the optical measuring module for the video camera resolving power test detection device for indicating one embodiment of the invention
Figure.
As shown in figure 4, the video camera resolving power test detection device of the present embodiment further includes optical measuring module 200.
As shown in figure 4, optical measuring module 200 passes through light diffusion part 130 to 130 internal irradiation of light diffusion part for measuring
The light characteristic of light, including light measuring sensor 210, moving portion 220, rotating part 230 and measurement control unit 240.
Light measuring sensor 210 is inserted into inside and the measurement of light diffusion part 130 by the opening portion 152 of fixed plate 150
Pass through the light characteristic for the light that the interior surface of light diffusion part 130 is irradiated.Moreover, light measuring sensor 210 is electrically connected to measurement
Measured value can be output to by control unit 240 measures control unit 240.At this point, light characteristic may include gray scale, chromaticity coordinates, colour temperature,
Illuminance etc..
Make all places of the interior surface of light diffusion part 130 that there is unified light characteristic, flash ranging to control light source 124
Quantity sensor 210 needs to be located at from the identical position of all distance locations of 130 inner face of light diffusion part.I.e., light measuring sensor
210 can be located at the centre of light diffusion part 130.
In this way, in order to which the center that light measuring sensor 210 is located at light diffusion part 130 can have moving portion 220.It is mobile
The centre that portion 220 makes light measuring sensor 210 be located at light diffusion part 130 by adjusting the height of light measuring sensor 210.Example
Such as, light measuring sensor 210 can be located on the central shaft of opening portion 152 first.Later, moving portion 220 senses light measurement
Device 210 is moved with upper and lower directions makes light measuring sensor 210 be located at light diffusion to adjust the height of light measuring sensor 210
The center in portion 130.
Also, in order to light measuring sensor 210 at the center of light diffusion part 130 inner face of light diffusion part 130 is not it is free
Remaining field measures, and can have the rotating part 230 that can rotate light measuring sensor 210 to omnidirection.Rotation
Transfer part 230 may include that horizontal rotation motor 232 and vertical rotary motor 234, the horizontal rotation motor 232 pass light measurement
Sensor 210 by with centered on the rotary shaft in the direction perpendicular to mounting surface carry out horizontal direction rotation, the vertical rotary motor
Light measuring sensor 210 is carried out vertical rotary by 234 centered on level in the rotary shaft in the direction of mounting surface.At this point, rotation
Transfer part 230 can be driven in the state that light measuring sensor 210 is located at the center of light diffusion part 130 by moving portion 220
Dynamic, 0 degree~360 degree rotation can be carried out by rotating horizontally motor 232, and vertical rotary motor 234 can carry out 0 degree from the center of ball
~120 degree of rotations.Light measuring sensor 210 can measure the light characteristic of all spectra of 130 inner face of light diffusion part as a result,.
Moving portion 220 and rotating part 230 are electrically connected to measurement control unit 240 and can be controlled so as to automatically sense light measurement
Device 210 is located at the center of light diffusion part 130, can also be manually controlled to drive.
As shown in figure 4, in order to make light measuring sensor be located at light diffusion part inside the present embodiment camera shooting machine testing mould
Block 100 is positioned over the top of optical measuring module in a manner of being prevented from moving horizontally.
Fig. 5 is the light source for indicating the video camera resolving power test detection device such as one embodiment of the invention, flash ranging
The block diagram of the connection relation of quantity sensor and control unit.
As shown in figure 5, light measuring sensor 210 can measure the light characteristic of 130 inner face all spectra of light diffusion part, and will
It, which is output to, measures control unit 240.Moreover, measuring the value and individual light source that control unit 240 inputs light measuring sensor 210
124 level is compared and calculates the corrected value of individual light source 124, and is output to light source control portion 126.Moreover,
The all of light diffusion part 130 arrive at according to light source 124 is controlled from the value for measuring the input of control unit 240 in light source control portion 126
The light characteristic of the light of position is uniform.
For example, when the 1st place of 130 inner face of light diffusion part of the measurement of light measuring sensor 210 and the illumination ratio in the 2nd place
When the illumination set is low, the output of control unit 240 is measured for improving the light source 124 toward the 1st place and the 2nd place irradiation light
Illumination signal.
Each light source 124 is controlled on the basis of the value inputted by light measuring sensor 210 as a result, and adjusts arrival light diffusion
The light characteristic of the light on 130 surface of portion makes it uniformly, it is possible thereby to which accurate and easy progress is for the light characteristic in detection device
Adjusting.Also, it may be constructed the video camera detection module for sending out multiple color temperatures by the combination of various light sources 124.
Fig. 6 is the video camera detection module for the video camera resolving power test detection device for indicating one embodiment of the invention
Bottom installation coloration illumination photometer figure.
In addition, as shown in fig. 6, the video camera resolving power test of the present embodiment also has coloration illumination photometer with detection device.
Coloration illumination photometer 300 is installed on the opening portion bottom of light diffusion part 130, is shone by light diffusion part 130 for measuring
The colour temperature and illumination for the light penetrated.Coloration illumination photometer 300 can be electrically connected to operation portion 140 by light source control portion 126.
I.e., when operation portion 140 adjusts the output level of light source 124, light source control portion 126 can be according to the value set to passing through light
The illumination or colour temperature of light source 124 of the adjusting with uniform light characteristic of measurement module 200 etc. are whole to be adjusted.
Moreover, coloration illumination photometer 300 measures it and measured value is output to light source control portion 126, light source control
After the value set by operation portion 140 and the value inputted by coloration illumination photometer 300 are compared by portion 126, whole light are controlled
Source 124 keeps the two consistent.Thus, it is possible to carry out accurate adjusting to illumination, colour temperature of whole light sources 124 etc..
The video camera resolving power test of one embodiment of the invention is illustrated with detection device above.
It is above that preferred embodiments of the present invention have been disclosed for illustrative, and for person of an ordinary skill in the technical field and
Speech, other than embodiment described above, the present invention can be in the case of without departing from the spirit or scope, can specific shape
It is obvious at other specific modalities.Therefore, the above embodiments are not limiting and as indication, thus originally
Invention is not limited by above description and can be changed in the case of without departing from the spirit or scope.
Claims (11)
1. a kind of video camera resolving power test detection device, which is characterized in that
Including video camera detection module,
The video camera detection module has：
Light source portion forms the chest shape of bottom opening, is equipped with multiple light sources, and multiple light sources can be controlled individually；
Light diffusion part is installed on the inside in the light source portion, forms the spherical shape of bottom opening；And
Light source control portion controls the light source respectively according to the light characteristic set.
2. video camera resolving power test detection device according to claim 1, which is characterized in that
The light source control portion controls the light source respectively, so that the light characteristic for arriving at the light of the smooth diffusion part is uniform.
3. video camera resolving power test detection device according to claim 1, which is characterized in that
The smooth diffusion part is formed as, from center toward the section of surrounding on, be in 240 degree of angle between the opening portion both ends of bottom
Degree.
4. video camera resolving power test detection device according to claim 1, which is characterized in that the light source portion it is each
A face, the printed circuit board for being used to install multiple light sources by more than one are formed by connecting.
5. video camera resolving power test detection device according to claim 1, which is characterized in that
The video camera detection module further includes exterior case, which forms the chest shape of bottom opening, and internal
Configured with the light source portion.
6. video camera resolving power test detection device according to claim 5, which is characterized in that
The video camera detection module further includes for fixing the light source portion, the smooth diffusion part and the exterior case
Fixed plate.
7. video camera resolving power test detection device according to claim 1, which is characterized in that
Including optical measuring module,
The optical measuring module has：
Light measuring sensor is located at the inside of the smooth diffusion part, for measuring the interior surface photograph by the smooth diffusion part
The light characteristic for the light penetrated；And
Control unit is measured, the light characteristic inputted by the light measuring sensor is compared simultaneously with the level of the practical light source
Extrapolate corrected value.
8. video camera resolving power test detection device according to claim 7, which is characterized in that
The optical measuring module includes moving portion, and the moving portion is used to adjust height and the position of the light measuring sensor
The light measuring sensor is set to be located at the center of the smooth diffusion part.
9. video camera resolving power test detection device according to claim 7, which is characterized in that
The optical measuring module includes rotating part, and the rotating part is by the light measuring sensor with horizontal direction or Vertical Square
To rotary shaft pivot about, and the optical measuring module can measure from all positions of the smooth diffusion part shine
The light penetrated.
10. video camera resolving power test detection device according to claim 7, which is characterized in that
The measurement control unit exports the corrected value to the light source control portion, and the light source control portion is in order to make arrival institute
The light characteristic for stating the light of all positions of light diffusion part is uniform, and institute is controlled respectively according to the value by the measurement control unit input
State light source.
11. video camera resolving power test detection device according to claim 1, which is characterized in that
Has coloration illumination photometer, the coloration illumination photometer is installed on the opening portion bottom of the smooth diffusion part, passes through for measuring
The colour temperature and illuminance of the light of the smooth diffusion part irradiation, also, the light source control portion by the value set with pass through
The value of the coloration illumination photometer input is compared to be confirmed whether that unanimously controlling the light source later keeps both consistent.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2017-0003288 | 2017-01-10 | ||
| KR1020170003288 | 2017-01-10 |
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| CN108366252A true CN108366252A (en) | 2018-08-03 |
| CN108366252B CN108366252B (en) | 2020-07-03 |
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| CN201810023083.4A Active CN108366252B (en) | 2017-01-10 | 2018-01-10 | Detection equipment for testing definition of camera |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109212886A (en) * | 2017-06-30 | 2019-01-15 | 鸿富锦精密工业（深圳）有限公司 | Fisheye camera mould group image test device |
| CN110677641A (en) * | 2019-10-16 | 2020-01-10 | 广东以诺通讯有限公司 | Wide angle and focusing definition testing arrangement of camera |
| CN112577715A (en) * | 2019-09-27 | 2021-03-30 | 三赢科技（深圳）有限公司 | Point inspection method, point inspection device and computer device |
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