CN110149506A - Image projection detection device and image projection detection method - Google Patents
Image projection detection device and image projection detection method Download PDFInfo
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- CN110149506A CN110149506A CN201910583366.9A CN201910583366A CN110149506A CN 110149506 A CN110149506 A CN 110149506A CN 201910583366 A CN201910583366 A CN 201910583366A CN 110149506 A CN110149506 A CN 110149506A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3191—Testing thereof
Abstract
The present invention provides a kind of image projection detection device and image projection detection methods, are related to image projection detection technique field, image projection detection device provided by the invention, comprising: ray machine loading assembly, projection screen, first detection module and the second detection module；Ray machine loading assembly is used for clamping projection light machine, and drives projection light machine and projection screen synchronizing moving, so that projection screen has the first station to be measured and the second station to be measured；Projection screen is for being arranged in the optical path of projection light machine, so that image is invested in projection screen；When projection screen is located at the first station to be measured, first detection module is used to detect the clarity of image；When projection screen is located at the second station to be measured, the second detection module is used to detect the size and distortion value of image, alleviates required precision height in the detection of image micro projection using visual identity, measurement difficulty Yamato is the technical problems such as perceptual error.
Description
Technical field
The present invention relates to image projection detection technique fields, throw more particularly, to a kind of image projection detection device and image
Shadow detection method.
Background technique
Projection device image generation unit (PGU) needs to detect in the manufacturing multinomial critical optical parameter, traditional
Artificial detection is high to measuring technique and the operating experience requirement of tester, and needs to judge image definition by human eye
Degree, test result have many subjective factors.It not can avoid human error and perceptual recognition simultaneously, cause accuracy insufficient and effect
The low problem of rate brings artificial and the time dual cost pressure.
Summary of the invention
The purpose of the present invention is to provide a kind of image projection detection device and image projection detection methods, to alleviate image
The technical issues of generating error because artificially perceiving in projection detection.
In a first aspect, image projection detection device provided by the invention, comprising: ray machine loading assembly, projection screen, the first inspection
Survey module and the second detection module；The ray machine loading assembly is used for clamping projection light machine, and drives the projection light machine and institute
Projection screen synchronizing moving is stated, so that the projection screen has the first station to be measured and the second station to be measured；The projection screen is used for
It is arranged in the optical path of the projection light machine, so that image is invested in the projection screen；When the projection screen is located at described first
When station to be measured, the first detection module is used to detect the clarity of the image；When the projection screen is located at described second
When station to be measured, second detection module is used to detect the size, distortion value and off-centring of the image.
With reference to first aspect, the present invention provides the first possible embodiments of first aspect, wherein described image
Projecting detection device further includes third detection module, and the projection screen also has third station to be measured；When the projection screen is located at
When third station to be measured, the third detection module is used to detect brightness and the colouring information of the image.
The possible embodiment of with reference to first aspect the first, second the present invention provides first aspect are possible
Embodiment, wherein the third detection module includes luminance meter and first movement component, and the luminance meter is installed on described
One moving assembly, the first movement component are used to that the luminance meter to be driven to move along the direction for being parallel to X-axis.
The possible embodiment of with reference to first aspect the first, the third the present invention provides first aspect are possible
Embodiment, wherein the third detection module further includes the second moving assembly, and second moving assembly is connected to described
On one moving assembly, and the first movement component is used to that the luminance meter to be driven to rotate around the axis for being parallel to Z axis.
The third possible embodiment with reference to first aspect, the 4th kind the present invention provides first aspect are possible
Embodiment, wherein the third detection module further includes the third moving assembly being connected on the first movement component, institute
Third moving assembly is stated for driving the luminance meter to rotate around the axis for being parallel to Y-axis.
The possible embodiment of second with reference to first aspect, the 5th kind the present invention provides first aspect are possible
Embodiment, wherein the first movement component includes: the first actuator and the first load-bearing part, the first load-bearing part connection
In the movable end of first actuator, the first detection module, second detection module and the luminance meter connect respectively
It connects on first load-bearing part.
The 5th kind of possible embodiment with reference to first aspect, the 6th kind the present invention provides first aspect are possible
Embodiment, wherein illumination photometer is additionally provided on first load-bearing part, the illumination photometer is used to detect the illumination of projection light machine
Information；The projection screen is connected to mobile base, so that the projection screen has first position and the second position；When the projection
When screen is located at the first position, the image is invested in the projection screen；When the projection screen is located at the second position,
The projection screen avoids the optical path of the projection light machine.
Second aspect, image projection detection method provided by the invention, comprising: using standard projection ray machine as tested pair
As, and standard video is invested in projection screen, first detection module, the second detection module and third detection module are demarcated respectively
Default detection position；Projection screen is invested in as measurand, and by image to be measured using tested projection light machine；First detection
Module detects the clarity of the image to be measured；Second detection module detects the intermediary image size, abnormal of the image to be measured
Variate and off-centring；The third detection module detects brightness and the colouring information of the image to be measured.
In conjunction with second aspect, the present invention provides the first possible embodiments of second aspect, wherein the third
It includes: to move luminance meter respectively to multiple default inspections that detection module, which detects the step of brightness and colouring information of the image to be measured,
Location is set, to detect the optical parameter of corresponding measurement point on the image to be measured.
In conjunction with second aspect, the present invention provides second of possible embodiments of second aspect, wherein described image
Projection detection method further include: mobile projector screen is to avoid the optical path of the tested projection light machine；Illumination photometer is placed in the quilt
It surveys in the optical path of projection light machine, and changes the relative position of the illumination photometer and the tested projection light machine to measure multiple illumination
Value；The illuminance uniformity of the tested projection light machine is evaluated, and luminous flux is calculated according to intermediary image size.
The embodiment of the present invention brings following the utility model has the advantages that being used for clamping projection light machine using ray machine loading assembly, and drives
Dynamic projection light machine and projection screen synchronizing moving, so that projection screen has the first station to be measured and the second station to be measured, projection screen is used
In the optical path that projection light machine is set, so that image is invested in projection screen, when projection screen is located at the first station to be measured, first
Detection module is used to detect the clarity of image, and when projection screen is located at the second station to be measured, the second detection module is for detecting
The size of image and the mode of distortion value realize the clamping to projection light machine by ray machine loading assembly, and synchronizing moving projects
Ray machine and projection screen, by first detection module detect image definition, by the second detection module detect image size and
Distortion value, so as to reduce because of error caused by artificial detection and artificial perception.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
Technical solution in order to illustrate more clearly of the specific embodiment of the invention or in the related technology, below will be to specific
Attached drawing needed in embodiment or description of Related Art is briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the schematic diagram of image projection detection device provided in an embodiment of the present invention；
Fig. 2 is the first detection module of image projection detection device provided in an embodiment of the present invention, the second detection module, the
The schematic diagram of three detection modules and illumination photometer；
Fig. 3 is the cross-sectional view one of the third detection module of image projection detection device provided in an embodiment of the present invention；
Fig. 4 is the cross-sectional view two of the third detection module of image projection detection device provided in an embodiment of the present invention；
Fig. 5 is the signal of the ray machine loading assembly and projection screen of image projection detection device provided in an embodiment of the present invention
Figure；
Fig. 6 is the flow chart of image projection detection method provided in an embodiment of the present invention；
Fig. 7 is intermediary image and distortion scale diagrams.
Icon: 1- ray machine loading assembly；11- lifting cylinder；12- loading stage；13- clamp body；2- projection screen；21- activity
Pedestal；3- first detection module；31- camera；The second detection module of 4-；5- third detection module；51- luminance meter；52- first is moved
Dynamic component；The first actuator of 521-；The first load-bearing part of 522-；The second moving assembly of 53-；The second actuator of 531-；532- worm screw；
533- worm gear；54- third moving assembly；541- third actuator；542- shaft member；543- bearing seat；6- illumination photometer.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Embodiment one
As shown in Figure 1, image projection detection device provided in an embodiment of the present invention, comprising: ray machine loading assembly 1, projection
Screen 2, first detection module 3 and the second detection module 4；Ray machine loading assembly 1 is used for clamping projection light machine, and drives projection light machine
With 2 synchronizing moving of projection screen so that projection screen 2 have the first station to be measured and the second station to be measured；Projection screen 2 is for being arranged
In the optical path of projection light machine, so that image is invested in projection screen 2；When projection screen 2 is located at the first station to be measured, the first detection mould
Block 3 is used to detect the clarity of image；When projection screen 2 is located at the second station to be measured, the second detection module 4 is for detecting image
Size, distortion value and off-centring.
Specifically, the top installs fixture of ray machine loading assembly 1, fixture is by being clamped or being threadedly coupled clamping projected light
Machine, and ray machine loading assembly 1 can drive projection light machine and projection screen 2 to move between the first position to be measured and the second position to be measured
It is dynamic.The industrial camera of 1,300,000 pixels can be used in first detection module 3, utilizes the camera lens and CCD testing image by calibration
Mtf value, by first detection module 3 after the imaging of single pixel striped, so that first detection module 3 obtains grayscale information, and root
According to formulaWherein: ImaxFor lines gray scale maximum value, IminFor lines minimum gray value.Second detection mould
Block 4 includes the single industrial area array cameras for vision-based detection and positioning, and the pixel of industrial area array cameras is 12,000,000.Second
Detection module 4 obtains cleannes and stray light situation, can be by controller contrast standard cleannes and standard stray light, to evaluate
Whether cleannes and stray light reach standard.As shown in fig. 7, being sat according to the coordinate position of the second detection module 4 and actual physics
The space transformational relation of system is marked, calculates measuring image, while distortion value is calculated according to the length-breadth ratio of intermediary image, calculation formula is such as
Under:Wherein, Distortion is system
Distortion value, Δ V1With Δ V2For the distortion value (pixel value) of vertical direction, V1And V2Respectively vertical direction image size (as
Element value), Δ H1With Δ H2For the distortion value (pixel value) of horizontal direction, H1And H2Respectively picture size (the pixel of horizontal direction
Value).Intermediary image calculation formula is as follows:Wherein H is the length dimension (mm) of intermediary image, V
For the width dimensions (mm) of intermediary image, H0For the length dimension (mm) of standard ray machine image, V0For the broad-ruler of standard ray machine image
Very little (mm), X0To detect the corresponding pixel number of length direction, Y when calibration0The corresponding pixel number in detection width direction when to demarcate.
As shown in Figure 1, in embodiments of the present invention, image projection detection device further includes third detection module 5, projection screen
2 also have third station to be measured；When projection screen 2 is located at third station to be measured, third detection module 5 is for detecting the bright of image
Degree and colouring information.Wherein, ray machine loading assembly 1 can drive projection light machine and 2 synchronizing moving of projection screen to third station to be measured,
Third detection module 5 include point type luminance meter, can be used for detecting brightness and colouring information, by multiple spot detection be compared to
The detection to image uniformity may be implemented.
As shown in Fig. 2, third detection module 5 includes luminance meter 51 and first movement component 52, luminance meter 51 is installed on the
One moving assembly 52, first movement component 52 is for driving luminance meter 51 to move along the direction for being parallel to X-axis.Wherein, it first moves
The linear guide slide unit of model G1610-400 can be used in dynamic component 52, and the point of model SRC-200M can be used in luminance meter 51
Formula spectral luminance meter.First movement component 52 can drive luminance meter 51 to move in the horizontal direction, to change luminance meter 51 and throw
The relative position of shadow screen 2, and then the measurement of luminance meter 51 can be made to obtain multiple test points in the horizontal direction, to compare multiple detections
The brightness of point and colouring information.
Further, first movement component 52 includes: the first actuator 521 and the first load-bearing part 522, the first load-bearing part
522 are connected to the movable end of the first actuator 521, and first detection module 3, the second detection module 4 and luminance meter 51 are separately connected
On the first load-bearing part 522.Wherein, the first actuator 521 includes electric expansion cylinder, alternatively, the first actuator 521 includes motor
And lead screw, motor driven lead screw, and lead screw and the first load-bearing part 522 cooperate, to first can be driven to hold by the lead screw of rotation
Holder 522 moves in the horizontal direction.
As shown in Figures 2 and 3, third detection module 5 further includes the second moving assembly 53, and the second moving assembly 53 is connected to
On first movement component 52, and first movement component 52 is used to that luminance meter 51 to be driven to rotate around the axis for being parallel to Z axis.Wherein,
The electric rotary table of model Y200RA200 can be used in second moving assembly 53, is moved by the second moving assembly 53 driving first
Dynamic component 52 is rotated around the axis for being parallel to Z axis, and so as to change the direction of luminance meter 51, and then it is more to obtain luminance meter 51
A test point.
Further, the second moving assembly 53 includes: the second actuator 531, worm screw 532 and worm gear 533, the second actuator
531 can be configured to motor to drive worm screw 532 to rotate, and worm screw 532 and worm gear 533 cooperate, to pass through the worm screw 532 of rotation
Worm gear 533 can be driven to rotate, the axis of worm gear 533 is parallel to Z axis, and worm gear 533 is connected to the activity of the first actuator 521
End, luminance meter 51 are connected to the top of worm gear 533, and when worm gear 533 rotates, the direction of luminance meter 51 changes, in luminance meter 51
Direction can get multiple test points during changing, and passes through the brightness for comparing multiple test points and image can be evaluated in colouring information
Uniformity.
As shown in Figure 2, Figure 3 and Figure 4, third detection module 5 further includes that the third being connected on first movement component 52 is moved
Dynamic component 54, third moving assembly 54 are used to that luminance meter 51 to be driven to rotate around the axis for being parallel to Y-axis.Wherein, the mobile group of third
The electric angle position platform of model Y200GA15 can be selected in part 54, and the fixing end of third moving assembly 54 is connected to the top of worm gear 533
Portion, luminance meter 51 are connected to the movable end of third moving assembly 54, and third moving assembly 54 drives luminance meter 51 around being parallel to Y-axis
Axis rotation, thus the elevation angle of adjustable luminance meter 51, and then detect multiple detections in 51 elevation angle change procedure of luminance meter
The brightness of point and colouring information.It is respectively driven by first movement component 52, the second moving assembly 53 and third moving assembly 54
Luminance meter 51 is marked by the position of calibration first movement component 52, the second moving assembly 53 and third moving assembly 54
Determine nine test points of luminance meter 51, thus average brightness can be calculated by following formula:Wherein i
Indicate test point number, LvIndicate average brightness, LviIndicate i-th point of brightness value.Color homogeneity calculation formula are as follows: Δ
U`v`=[(ui`-uj`)2+(vi`-vj`)2]1/2, wherein ui`、uj`、vi` and vj` is respectively that the corresponding color of each test point is sat
Scale value.Colour temperature 5500K, it is desirable that Mac is less than 0 after colour mixture, wherein Mac=P00+P10·x+P01·y+P20·x2+P11·x·y+
P02·y2, wherein x and y is the chromaticity coordinates value obtained by luminance meter 51, P00、P10、P20、P11、P01And P02Value table such as
Under:
| P00 | P10 | P01 |
| 0.000023630698 | -0.000156696542 | 0.000014080033 |
| P20 | P11 | P02 |
| 0.000419655701 | -0.000358604765 | 0.000154132382 |
Further, third moving assembly 54 includes: third actuator 541, shaft member 542 and bearing seat 543, bearing seat
543 section be it is arc-shaped or semicircle, third actuator 541 be configured to motor with driving shaft 542 rotation, shaft member 542
Cooperate or be threadedly engaged by worm and gear with bearing seat 543, so that the rotation of shaft member 542 can drive bearing seat 543 around parallel
It is rotated in the axis of Y-axis.Luminance meter 51 is connected to the top of bearing seat 543, the changeable luminance meter 51 when bearing seat 543 rotates
The elevation angle.
As shown in Figure 1, Figure 2 and shown in Fig. 5, illumination photometer 6 is additionally provided on the first load-bearing part 522；Illumination photometer 6 is for detecting projection
The illuminance information of ray machine；Projection screen 2 is connected to mobile base 21, and mobile base 21 makes projection screen 2 have first position and the
Two positions；When projection screen 2 is located at first position, image is invested in projection screen 2；When projection screen 2 is located at the second position, projection
The optical path of 2 evacuation projection light machine of screen.When projection screen 2 is located at the second position, projection light machine irradiates illumination photometer 6, to pass through photograph
6 detection illuminance information of degree meter.Projection light machine is driven to be respectively moved to five luminance detection positions by ray machine loading assembly 1 in the process
It sets, so that illumination photometer 6 can detect the illuminance information that five luminance detection positions correspond to test point.Illuminance uniformity calculation formula
Are as follows:Wherein, LmaxFor illumination maximum value, LminFor illumination minimum value, LaveFor
Illumination average value.In addition, also luminous flux, luminous flux calculation formula can be obtained according to intermediary image size are as follows:Wherein, H is the length dimension (mm) of intermediary image, and V is the width dimensions (mm) of intermediary image.
Further, first detection module 3, the second detection module 4 and illumination photometer 6 are both connected on the first load-bearing part 522,
First movement component 52 can drive 6 synchronizing moving of first detection module 3, the second detection module 4 and illumination photometer；Also, the second inspection
The optical axis position for surveying module 4 is higher than the optical axis position of first detection module 3, and the optical axis position of luminance meter 51 is higher than the second detection mould
The optical axis position of block 4 drives projection light machine and 2 synchronization lifting of projection screen by ray machine loading assembly 1, so as to make the first detection
Module 3, the second detection module 4 and luminance meter 51 detect the image information on projection screen 2 respectively.In addition, the first load-bearing part 522
Bottom cooperates sliding rail, and sliding rail connection is on the rack, to support the first load-bearing part 522, and the first actuator 521 by sliding rail
The first load-bearing part 522 can be driven to move along sliding rail, and then first movement component 52 drives first detection module 3, second to detect mould
6 synchronizing moving of block 4, luminance meter 51 and illumination photometer, so that first detection module 3, the second detection module 4 and luminance meter 51 is mobile
To the optical axis side of projection light machine, and make 6 face projection light machine of illumination photometer, to detect the photograph of projection light machine by illumination photometer 6
Spend information.
Further, when illumination photometer 6 detects the illuminance information of projection light machine, projection screen 2 should be made to avoid projection light machine
Optical path.Wherein, cylinder or linear guide slide unit can be used in mobile base 21, connects projection screen by the movable end of mobile base 21
2, so that projection screen 2 is driven to move between the first position and the second position, when projection screen 2 is moved to first position, image
It is incident upon on projection screen 2；When projection screen 2 is moved to the second position, and illumination photometer 6 moves face projection light machine, illumination photometer 6 can
Detect the illuminance information of projection light machine.
Further, ray machine loading assembly 1 includes: lifting cylinder 11, loading stage 12 and clamp body 13, and clamp body 13 is used for
Projection light machine is clamped, loading stage 12 is connected to the movable end of lifting cylinder 11, and clamp body 13 is mounted on loading stage 12, and projects
Screen 2 is connected to loading stage 12, can drive fixture 2 synchronization lifting of body 13 and projection screen by lifting cylinder 11.
Further, first detection module 3 includes five cameras 31, and five intervals of camera 31 are arranged, and correspond
Ground is located at the quadrangle and the cornerwise center of quadrangle of quadrangle.In addition, before camera lens be added optical filtering can match due to
The variation of crevice projection angle bring brightness.The characteristics of due to PGU imaging lens itself, in the different location chief ray angle of picture
It is inconsistent cause the same direction watch screen when, the luminance difference of picture is very big, it may appear that serious lower part is bright, on
The dark situation in portion.It takes the image of center and quadrangle respectively using five cameras 31, and is come before camera lens using different filters
Incident intensity is adjusted, solves the problems, such as that different angle region has differences.
Embodiment two
As shown in Figure 1, Figure 2, shown in Fig. 5 and Fig. 6, on the basis of example 1, image projection provided in an embodiment of the present invention
Detection method, comprising: using standard projection ray machine as measurand, and standard video is invested in projection screen 2, demarcates respectively
The default detection position of one detection module 3, the second detection module 4 and third detection module 5；Using tested projection light machine as being tested
Object, and image to be measured is invested in projection screen 2；First detection module 3 detects the clarity of image to be measured；Second detection module
Intermediary image size, distortion value and the off-centring of 4 detection images to be measured, and luminance meter 51 and illumination are calculated by measured value
Count 6 corresponding predeterminated position offsets；Third detection module 5 detects brightness and the colouring information of image to be measured.
Specific steps include: that standard ray machine is mounted on ray machine loading assembly 1, pass through 4 preview shadow of the second detection module
Picture, and control lifting cylinder 11 and first movement component 52 is adjusted to detection position, calculate standard ray machine center and size
Then zoom factor, i.e. world coordinates and test macro coordinate transformation relation complete center and sizing calibration.Control lifting respectively
Cylinder 11, first movement component 52, the second moving assembly 53 and third moving assembly 54, find corresponding inspection according to standard video
Location is set, and the corresponding lifting cylinder 11 in each default detection position, first movement component 52, the second moving assembly 53 and third are recorded
The state of moving assembly 54, to complete location position.Standard projection ray machine is dismantled, and projection light machine to be measured is mounted on ray machine
On loading assembly 1, five cameras, the 31 real-time detection clarity of first detection module 3, until clarity numerical value meets default want
Stopping is asked to focus.Controlling lifting cylinder 11, first movement component 52, the second moving assembly 53 and third moving assembly 54 respectively makes
First detection module 3, the second detection module 4 and third detection module 5 are successively moved to default detection position, treat to realize
Survey the detection of projection light machine.Inspection center's offset detects position compensated information with each point, and compensated information is for compensating nine detections
Position is by off-centring bring deviation.Off-centring test is mainly according to the center detected when calibrating, i.e. pixel
The deviation between center recognized when coordinate and actual test, and the relative deviation as different location detections all below
Position compensation calibration.It obtains cleannes and stray light situation using the second detection module 4 and is analyzed by data and obtain corresponding refer to
Whether mark, evaluation cleannes and stray light reach standard, and contrast standard cleannes and standard stray light compare, according to identification
The amount of speckle and grayscale information of image then judge to fail beyond critical field.Intermediary image ruler is measured using the second detection module 4
Whether very little and distortion value, evaluation intermediary image size and distortion value reach requirement.
In embodiments of the present invention, third detection module 5 detects the step of brightness and colouring information of image to be measured and includes:
Luminance meter 51 is moved respectively to multiple default detection positions, to detect the optical parameter of corresponding measurement point on image to be measured.Tool
Body, the test of brightness needs to guarantee that the optical axis of luminance meter 51 is overlapped with the chief ray that tested projection light machine issues, and presets detection
Position combines the testing result compensation of the second detection module 4 to determine by the preset value demarcated, horizontal by first movement component 52
Mobile luminance meter 51 drives luminance meter 51 to swing around vertical axis, and passes through third moving assembly by the second moving assembly 53
The elevation angle of 54 driving luminance meters 51 changes, to make luminance meter 51 successively be moved to nine test points, one by one by luminance meter 51
The image informations such as each point average brightness, chromaticity coordinates, color homogeneity and illuminance uniformity are detected, to evaluate projection light machine to be measured
Image effect.
Further, image projection detection method further include: mobile projector screen 2 is tested the optical path of projection light machine to avoid；
Illumination photometer 6 is placed in the optical path of tested projection light machine, and changes the relative position of illumination photometer 6 and tested projection light machine to measure
Multiple brightness values；The detection position of brightness value combines the testing result compensation of the second detection module 4 to determine by the preset value demarcated,
The illuminance uniformity of tested projection light machine is evaluated, and luminous flux is calculated according to intermediary image size.It is controlled by first movement component 52
Illumination photometer 6 processed is precisely moved to default detection position, and according to the center detected when calibrating, i.e. pixel coordinate and reality
The deviation between center recognized when test, and the relative deviation position compensation calibration as detection position, have ensured brightness
The accuracy and Real time Efficiency of coordinate when meter 51 and illumination photometer 6 detect.And finally realize the separate unit testing time less than 3 minutes,
2 hours are needed compared to artificial detection, when having saved a large amount of using the image projection detection method of image projection detection device
Between cost and human cost, while ensure that objective and accurate property.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of image projection detection device characterized by comprising ray machine loading assembly (1), projection screen (2), the first detection
Module (3) and the second detection module (4)；
The ray machine loading assembly (1) is used for clamping projection light machine, and drives the projection light machine synchronous with the projection screen (2)
It is mobile, so that the projection screen (2) has the first station to be measured and the second station to be measured；
The projection screen (2) is for being arranged in the optical path of the projection light machine, so that image is invested in the projection screen (2)；
When the projection screen (2) is located at first station to be measured, the first detection module (3) is for detecting the image
Clarity；
When the projection screen (2) is located at second station to be measured, second detection module (4) is for detecting the image
Size, distortion value and off-centring.
2. image projection detection device according to claim 1, which is characterized in that described image projection detection device also wraps
It includes third detection module (5), the projection screen (2) also has third station to be measured；
When the projection screen (2) are located at third station to be measured, the third detection module (5) is for detecting the image
Brightness and colouring information.
3. image projection detection device according to claim 2, which is characterized in that the third detection module (5) includes
Luminance meter (51) and first movement component (52), the luminance meter (51) are installed on the first movement component (52), and described
One moving assembly (52) is used to that the luminance meter (51) to be driven to move along the direction for being parallel to X-axis.
4. image projection detection device according to claim 3, which is characterized in that the third detection module (5) is also wrapped
It includes the second moving assembly (53), second moving assembly (53) is connected on the first movement component (52), and described
One moving assembly (52) is used to that the luminance meter (51) to be driven to rotate around the axis for being parallel to Z axis.
5. image projection detection device according to claim 4, which is characterized in that the third detection module (5) is also wrapped
The third moving assembly (54) being connected on the first movement component (52) is included, the third moving assembly (54) is for driving
The luminance meter (51) rotates around the axis for being parallel to Y-axis.
6. image projection detection device according to claim 3, which is characterized in that first movement component (52) packet
Include: the first actuator (521) and the first load-bearing part (522), first load-bearing part (522) are connected to first actuator
(521) movable end, the first detection module (3), second detection module (4) and the luminance meter (51) are separately connected
On first load-bearing part (522).
7. image projection detection device according to claim 6, which is characterized in that on first load-bearing part (522) also
It is provided with illumination photometer (6)；
The projection screen (2) is connected to mobile base (21), and the mobile base (21) makes the projection screen (2) to have first
Position and the second position；
When the projection screen (2) is located at the first position, the image is invested in the projection screen (2)；
When the projection screen (2) is located at the second position, the projection screen (2) avoids the optical path of the projection light machine, with
Make the illumination photometer (6) for detecting the illuminance information of the projection light machine.
8. a kind of image projection detection method characterized by comprising
Using standard projection ray machine as measurand, and standard video is invested in projection screen (2), demarcates the first detection mould respectively
The default detection position of block (3), the second detection module (4) and third detection module (5)；
Projection screen (2) are invested in as measurand, and by image to be measured using tested projection light machine；
The first detection module (3) detects the clarity of the image to be measured；
Second detection module (4) detects intermediary image size, distortion value and the off-centring of the image to be measured；
The third detection module (5) detects brightness and the colouring information of the image to be measured.
9. image projection detection method according to claim 8, which is characterized in that third detection module (5) detection
The step of brightness of the image to be measured and colouring information includes:
Luminance meter (51) to multiple default detection positions are moved, respectively to detect the light of corresponding measurement point on the image to be measured
Learn parameter.
10. image projection detection method according to claim 8, which is characterized in that described image projection detection method is also
Include:
Mobile projector screen (2) is to avoid the optical path of the tested projection light machine；
Illumination photometer (6) is placed in the optical path of the tested projection light machine, and changes the illumination photometer (6) and the tested projection
The relative position of ray machine is to measure multiple brightness values；
The illuminance uniformity of the tested projection light machine is evaluated, and luminous flux is calculated according to intermediary image size.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110568704A (en) * | 2019-09-02 | 2019-12-13 | 歌尔股份有限公司 | Ultra-short-focus lens detection system and detection method |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10170399A (en) * | 1996-12-06 | 1998-06-26 | Nikon Corp | Method and equipment for measuring aberration, aligner equipped with that method and equipment and fabrication of device |
| US6208412B1 (en) * | 1999-06-14 | 2001-03-27 | Visteon Global Technologies, Inc. | Method and apparatus for determining optical quality |
| CN1384345A (en) * | 2001-04-28 | 2002-12-11 | 慧生科技股份有限公司 | Automatic measurement system and method for optical characteristics of optical unit |
| CN101122543A (en) * | 2006-08-08 | 2008-02-13 | 明基电通股份有限公司 | Projector brightness measuring apparatus |
| US20090091623A1 (en) * | 2006-02-28 | 2009-04-09 | 3 D Perception As | Method and device for use in calibration of a projector image display towards a display screen, and a display screen for such use |
| JP2009121954A (en) * | 2007-11-15 | 2009-06-04 | Opcell Co Ltd | Device for measuring light flux |
| JP2011112621A (en) * | 2009-11-30 | 2011-06-09 | Toshiba Lighting & Technology Corp | Mobile photometric apparatus |
| CN102263985A (en) * | 2011-07-25 | 2011-11-30 | 深圳展景世纪科技有限公司 | Quality evaluation method, device and system of stereographic projection device |
| JP2012134731A (en) * | 2010-12-21 | 2012-07-12 | Panasonic Corp | Projection system and projection surface detection method in projection system |
| CN103139575A (en) * | 2011-11-28 | 2013-06-05 | 万正彪 | Image processing device capable of achieving multiple-screen image displaying and processing method thereof |
| JP2013196475A (en) * | 2012-03-21 | 2013-09-30 | Casio Comput Co Ltd | Projection device, projection method and program |
| CN106644411A (en) * | 2016-12-23 | 2017-05-10 | 歌尔科技有限公司 | Testing device and method for optical data of projector |
| CN107990980A (en) * | 2017-12-25 | 2018-05-04 | 深圳深索智能科技有限公司 | A kind of projector brightness on-line detecting system |
| CN108982990A (en) * | 2018-05-30 | 2018-12-11 | 中国人民解放军陆军工程大学 | A kind of image intensifier tester |
| CN108989789A (en) * | 2018-07-11 | 2018-12-11 | 深圳职业技术学院 | A kind of camera imaging quality real-time estimating method |
| CN209845159U (en) * | 2019-06-28 | 2019-12-24 | 浙江水晶光电科技股份有限公司 | Image projection detection device |
-
2019
- 2019-06-28 CN CN201910583366.9A patent/CN110149506A/en active Pending
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10170399A (en) * | 1996-12-06 | 1998-06-26 | Nikon Corp | Method and equipment for measuring aberration, aligner equipped with that method and equipment and fabrication of device |
| US6208412B1 (en) * | 1999-06-14 | 2001-03-27 | Visteon Global Technologies, Inc. | Method and apparatus for determining optical quality |
| CN1384345A (en) * | 2001-04-28 | 2002-12-11 | 慧生科技股份有限公司 | Automatic measurement system and method for optical characteristics of optical unit |
| US20090091623A1 (en) * | 2006-02-28 | 2009-04-09 | 3 D Perception As | Method and device for use in calibration of a projector image display towards a display screen, and a display screen for such use |
| CN101122543A (en) * | 2006-08-08 | 2008-02-13 | 明基电通股份有限公司 | Projector brightness measuring apparatus |
| JP2009121954A (en) * | 2007-11-15 | 2009-06-04 | Opcell Co Ltd | Device for measuring light flux |
| JP2011112621A (en) * | 2009-11-30 | 2011-06-09 | Toshiba Lighting & Technology Corp | Mobile photometric apparatus |
| JP2012134731A (en) * | 2010-12-21 | 2012-07-12 | Panasonic Corp | Projection system and projection surface detection method in projection system |
| CN102263985A (en) * | 2011-07-25 | 2011-11-30 | 深圳展景世纪科技有限公司 | Quality evaluation method, device and system of stereographic projection device |
| CN103139575A (en) * | 2011-11-28 | 2013-06-05 | 万正彪 | Image processing device capable of achieving multiple-screen image displaying and processing method thereof |
| JP2013196475A (en) * | 2012-03-21 | 2013-09-30 | Casio Comput Co Ltd | Projection device, projection method and program |
| CN106644411A (en) * | 2016-12-23 | 2017-05-10 | 歌尔科技有限公司 | Testing device and method for optical data of projector |
| CN107990980A (en) * | 2017-12-25 | 2018-05-04 | 深圳深索智能科技有限公司 | A kind of projector brightness on-line detecting system |
| CN108982990A (en) * | 2018-05-30 | 2018-12-11 | 中国人民解放军陆军工程大学 | A kind of image intensifier tester |
| CN108989789A (en) * | 2018-07-11 | 2018-12-11 | 深圳职业技术学院 | A kind of camera imaging quality real-time estimating method |
| CN209845159U (en) * | 2019-06-28 | 2019-12-24 | 浙江水晶光电科技股份有限公司 | Image projection detection device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110568704A (en) * | 2019-09-02 | 2019-12-13 | 歌尔股份有限公司 | Ultra-short-focus lens detection system and detection method |
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