CN101089580A - Measuring system and method for projector - Google Patents
Measuring system and method for projector Download PDFInfo
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- CN101089580A CN101089580A CN 200610093652 CN200610093652A CN101089580A CN 101089580 A CN101089580 A CN 101089580A CN 200610093652 CN200610093652 CN 200610093652 CN 200610093652 A CN200610093652 A CN 200610093652A CN 101089580 A CN101089580 A CN 101089580A
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Abstract
A measurement system of projector comprises a frame set at preset position in front of projector and used to display an image projected from projector, multiple first optical sensing unit set separately on said frame for measuring light characters at multiple sampling point on said image, a control unit connected to said first sensing unit and said frame for moving said first optical sensing unit to said sampling points to carry out measurement.
Description
Technical field
The present invention is about a kind of light measuring system and method, particularly, about a kind of in order to measure the system and method for projector's output light.
Background technology
The output light quality of different projectors has nothing in common with each other, and therefore need have a cover measurement standard to guarantee the quality of projector.General employed standard is 13 point measurements and 16 measurement of comparison that ANSI (American NationalStandard Institute (ANSI)) is formulated at present, wherein 13 point measurements are the central point with each five equilibrium behind projected picture 9 branches such as grade, add corner 4 points, and 16 o'clock measurement of comparison are the central point with each five equilibrium after projected picture 16 grades minute.Present testing standard is for to these 13 measurements of carrying out luminosity and brightness, and to the measurement of these 16 degree of comparing.Taiwan patent publication No. 00388003, denomination of invention are " optical projection system tester ", promptly disclose a kind of proving installation of projector, and it uses an optical sensing apparatus to move on projected picture, to measure projector's output light.Yet the mode that this single-point is measured in regular turn is quite consuming time, and when the specification of projector's picture not simultaneously, need readjust the position, and the time of measuring is longer.
Another Taiwan patent, publication number are 00386176, and denomination of invention " is used for measuring the light measuring system of the output light of projector ", also disclose a kind of test macro and method of projector.But its method is only at the measurement of 13 luminance brightness, the measurement of 29 points (or other quantity) then do not had the function of obvious lifting efficient, and also be not suitable for various different projectors specification.Fig. 1 shows another traditional light measuring system 100.In system 100, a projector 180 projections, one image frame is on framework 170, and sensing apparatus 150 places on the framework 170, in order to measure the light of projector's 180 outputs.One control device 190 is connected to projector 180 and sensing apparatus 150, in order to the output of control projector 180 and the position of sensing apparatus 150.Present measuring system is generally used 3 sensing apparatus 250,252 and 254, and gradation moves to tested point and measures (as shown in Figure 2), all measures up to 29 tested points to finish.In traditional measuring system illustrated in fig. 2, sensing apparatus 252 is to place in a fixed manner on the horizontal direction cross bar 274, but sensing apparatus 250 and 254 modes with move left and right place on the horizontal direction cross bar 274, and wherein horizontal direction cross bar 274 can be done slip up and down on vertical direction cross bar 272.With 29 tested points on the image frame 260 of measuring of these 3 sensing apparatus 250,252 and 254, its measuring sequence can for example be:
Measure tested point 201 and 202 respectively with sensing apparatus 250 and 254;
The horizontal direction that moves up slide bar 274 is measured tested point 211～213 respectively with sensing apparatus 250,252 and 254;
The horizontal direction that moves up slide bar 274 is measured tested point 214～216 respectively with sensing apparatus 250,252 and 254;
The horizontal direction that moves up slide bar 274 is measured tested point 217～219 respectively with sensing apparatus 250,252 and 254;
The horizontal direction that moves up slide bar 274 is measured tested point 203 and 204 respectively with sensing apparatus 250 and 254;
Move down horizontal direction slide bar 274, with sensing apparatus 250, and 254 measure tested point 233 and 236 respectively;
Move left and right sensing apparatus 250, and 254 is to measure tested point 234 and 235 respectively;
Move down horizontal direction slide bar 274, with sensing apparatus 250, and 254 measure tested point 230 and 231 respectively;
Move left and right sensing apparatus 250, and 254 is to measure tested point 229 and 232 respectively;
Move down horizontal direction slide bar 274, with sensing apparatus 250, and 254 measure tested point 225 and 228 respectively;
Move left and right sensing apparatus 250, and 254 is to measure tested point 226 and 227 respectively;
Move down horizontal direction slide bar 274, with sensing apparatus 250, and 254 measure tested point 222 and 223 respectively; And
Move left and right sensing apparatus 250, and 254 is to measure tested point 221 and 224 respectively.
Measure 29 tested points with traditional method and need 13 steps altogether, consuming time long.Therefore, be necessary to provide a kind of new light measuring method, under the cost consideration of measuring equipment, reduce the Measuring Time of projector's output, and be applicable to the projector of various testing standards and various aspect ratios.
Summary of the invention
In view of the existing problem of prior art, the invention provides a kind of measuring system and method for projector, in order under the consideration of cost, reduce Measuring Time.
According to an aspect of the present invention, provide a kind of in order to measure the system of projector output light characteristic.This system comprises a framework, throws an image frame thereon for projector; A plurality of first optical sensing apparatus are distributed on the framework with an optimal manner, in order to measure the light characteristic of a plurality of sampling spots on the image frame; And a control device, be connected with a plurality of first optical sensing apparatus and framework, in order to controlling the position of a plurality of first optical sensing apparatus, and the measured result of a plurality of first optical sensing apparatus is passed back for analysis.
According to a further aspect in the invention, the system of measuring projector output light characteristic also comprises 4 second optical sensing apparatus, places 4 corners of framework, in order to measure the light characteristic in 4 corners on image frame.
According to another aspect of the invention, if the quantity of a plurality of sampling spots is N, the maximum quantity that is positioned at the sampling spot of sustained height is M, sampling spot is distributed on P the different height, wherein 44 sampling spots that are positioned at 4 corners of framework and do not have any other sampling spot and 4 corners of N sampling spot are positioned at sustained height, then the optimal manner of distribution optics sensing apparatus is: select to use more than or equal to M first optical sensing apparatus, to measure the sampling spot that is positioned at sustained height at one time, and measure 4 sampling spots in 4 corners simultaneously with second optical sensing apparatus, carry out " P-2 " inferior measurement, and finish the measurement of N sampling spot.
In accordance with a further aspect of the present invention, provide a kind of in order to measure the method for projector output light characteristic.The method may further comprise the steps: (a) throw an image frame on a framework with projector; (b) quantity and the position of the sampling spot on the decision image frame; (c) according to the quantity and the position of sampling spot, and select to be arranged on the quantity and the position of first optical sensing apparatus on the framework with an optimal manner, wherein first optical sensing apparatus is in order to measure the light characteristic of sampling spot; (d) 4 corners of 4 second optical sensing apparatus at framework optionally are set, in order to measure the light characteristic in 4 corners on image frame; (e) to be connected to a control device of a plurality of first optical sensing apparatus and framework, control the position that a plurality of first optical sensing apparatus move to sampling spot, and control a plurality of first optical sensing apparatus a plurality of sampling spots are measured, and finish the measurement of all sampling spots.
Description of drawings
Fig. 1 illustrates a traditional light measuring system;
Fig. 2 illustrates a traditional measuring system and the synoptic diagram of measurement point;
Fig. 3 illustrates a light measuring system according to one embodiment of the invention;
Fig. 4 illustrates the synoptic diagram of a measuring system and measurement point according to one embodiment of the invention;
Fig. 5 illustrates the synoptic diagram of a measuring system and measurement point according to another embodiment of the present invention; And
Fig. 6 illustrates the synoptic diagram of a measuring system and measurement point according to still another embodiment of the invention.
The explanation of accompanying drawing element numbers
100,300, measuring system
150, sensing apparatus
170,370,670 frameworks
180,380, projector
190,390, control device
201～204,211～219,221～236, tested point
250,252,254,350,352,354,356,358 sensing apparatus
260,360,460,560,660, image frame
272,372,472,572,672, vertical direction slide bar
274,374,474,574,674, horizontal direction slide bar
401～404,411～419,421～436, tested point
450,452,454,456, sensing apparatus
501～504,511～519,521～536, tested point
550,552,554,556,558, sensing apparatus
601～604,611～619,621～636, tested point
640,642,644,646,650,652,654,656,658, sensing apparatus
Embodiment
The present invention discloses a kind of measuring system and method for projector.In order to make narration of the present invention more detailed and complete, can be with reference to the accompanying drawing of following description and cooperation Fig. 1 to Fig. 6.
With reference to figure 3, one light measuring system 300 is shown according to one embodiment of the invention.Measuring system 300 in order to measure projector 380 the light characteristic of difference on the image frame that light forms of exporting 360.When measuring, projector 380 throws an image frame 360 forward on framework 370, and its middle frame 370 can comprise a horizontal direction slide bar 374 and a vertical direction slide bar 372.In this embodiment, sensing apparatus 350,352,354,356 and 358 is respectively with fixing or movably mode places on the horizontal direction slide bar 374, with the output light of measurement projector 380, and horizontal direction slide bar 374 is slidably to place on the vertical direction slide bar 372.Control device 390 is connected to projector 380, exports an image frame 360 to framework 370 with control projector 380.In addition, control device 390 also is linked to framework 370 and part or whole sensing apparatus, in order to control the position of each sensing apparatus.In this embodiment, projector 380 places about 2～2.5 meters of framework 370 the place aheads, and the width of the image frame 360 that projects is identical with the width of framework 370, and the length then size rule (for example 4: 3 or 16: 9) with projector 380 is different and different.In the present invention, can see through some traditional gearings (for example step motor, speed-governing belt etc.) and control device 390 and the moving of sequencing horizontal direction slide bar 374 and sensing apparatus 350,352,354,356 and 358.
Fig. 4 is according to shown measuring system of one embodiment of the invention and measurement point synoptic diagram.29 tested points are arranged: the tested point 401～404 and 411～419 of colourity and brightness, and the tested point 421～436 of contrast on image frame 460.These 29 tested points are the measurement point that present industry is generally acknowledged, yet the present invention is not limited to the measurement of these 29 tested points, and the measurement point of other varying number and position distributes and also can use the method disclosed in the present to measure.In this implemented, sensing apparatus placed on the horizontal direction slide bar 474, and horizontal direction slide bar 474 can slide on vertical direction slide bar 472.Therefore can measure the tested point of sustained height (being identical y coordinate) at one time.Tested point among Fig. 4 is distributed on 9 different height, only places at sensing apparatus under the situation of horizontal direction slide bar 474, then needs mobile and horizontal direction slide bar 474 to carry out 9 times at least and measures, to finish the measurement of all tested points.Hence one can see that, and the quantity of sensing apparatus is required to be the maximum quantity of the sampling spot that is positioned at sustained height at least.In this embodiment, the maximum quantity of the sampling spot of sustained height is 4 (for example tested point 421～424, or tested point 425～428, etc.), therefore can select quantity more than or equal to 4 sensing apparatus.Fig. 4 illustrates the embodiment with 4 sensing apparatus 450,452,454 and 456.These 4 sensing apparatus 450,452,454 and 456 measuring sequence for example are:
Measure tested point 401 and 402 respectively with sensing apparatus 450 and 456;
The horizontal direction that moves up slide bar 474 is measured tested point 411～413 respectively with sensing apparatus 450,452 and 454;
The horizontal direction that moves up slide bar 474 is measured tested point 414～416 respectively with sensing apparatus 450,452 and 454;
The horizontal direction that moves up slide bar 474 is measured tested point 417～419 respectively with sensing apparatus 450,452 and 454;
The horizontal direction that moves up slide bar 474 is measured tested point 403 and 404 respectively with sensing apparatus 450 and 456;
Move down horizontal direction slide bar 474, measure tested point 433～436 respectively with sensing apparatus 450,452,454 and 456;
Move down horizontal direction slide bar 474, measure tested point 429～432 respectively with sensing apparatus 450,452,454 and 456;
Move down horizontal direction slide bar 474, measure tested point 425～428 respectively with sensing apparatus 450,452,454 and 456; And
Move down horizontal direction slide bar 474, measure tested point 421～424 respectively with sensing apparatus 450,452,454 and 456.
Wherein step (b)～(d) not necessarily need be used sensing apparatus 450,452 and 454, as long as from sensing apparatus 450,452,454 and 456 optional 3, and measuring sequence shown here only is illustration, so the order of step (a)～(i) is commutative.4 sensing apparatus 450,452,454 and 456 are moving by a control device with programmed control of slide bar 474 in the horizontal direction.
In whole measuring process, the sensing apparatus 450,452,454 and 456 among Fig. 4 all needs move left and right, thereby has increased some Measuring Time.Fig. 5 shows another measuring system of the Measuring Time that can further reduce embodiment among Fig. 4.Fig. 5 and Fig. 4 are similar, except selecting to use 5 sensing apparatus 550,552,554,556 and 558, wherein sensing apparatus 552,554 and 556 is to place in a fixed manner on the horizontal direction slide bar 574, but sensing apparatus 550 and 558 then places on the horizontal direction slide bar 574 in the mode of move left and right, and wherein horizontal direction slide bar 574 is to place in a movable manner on the vertical direction slide bar 572.In the middle of fixing sensing apparatus 552,554 and 556 is aimed at respectively 3 in line to be responsible for measuring 11 tested points (512,515,518,522,523,526,527,530,531,534 and 535) in the middle of the image frame 560, movably sensing apparatus 550 and 558 18 tested points (501-504,511,513,514,516,517,519,521,524,525,528,529,532,533 and 536) of being responsible for the measurement both sides.These 5 sensing apparatus 550,552,554,556 and 558 measuring sequence for example are:
Measure tested point 501 and 502 respectively with sensing apparatus 550 and 558;
The horizontal direction that moves up slide bar 574 is measured tested point 511～513 respectively with sensing apparatus 550,554 and 558;
The horizontal direction that moves up slide bar 574 is measured tested point 514～516 respectively with sensing apparatus 550,554 and 558;
The horizontal direction that moves up slide bar 574 is measured tested point 517～519 respectively with sensing apparatus 550,554 and 558;
The horizontal direction that moves up slide bar 574 is measured tested point 503 and 504 respectively with sensing apparatus 550 and 558;
Move down horizontal direction slide bar 574, measure tested point 533～536 respectively with sensing apparatus 550,552,556 and 558;
Move down horizontal direction slide bar 574, measure tested point 529～532 respectively with sensing apparatus 550,552,556 and 558;
Move down horizontal direction slide bar 574, measure tested point 525～528 respectively with sensing apparatus 550,552,556 and 558; And
Move down horizontal direction slide bar 574, measure tested point 521～524 respectively with sensing apparatus 550,552,556 and 558.
Measuring sequence shown here only is an illustration, so the order of step (a)～(i) is commutative.Whole measuring process only needs mobile and horizontal sensing apparatus 550 and 558, and sensing apparatus 552,554,556 is shift position not then in the horizontal direction, therefore can save more Measuring Time than Fig. 4.In addition, also can select to use 9 fixing sensing apparatus, 9 of aiming at respectively in the image frame 560 are in line, just can finish the measurement of all tested points under the situation that does not need the move left and right sensing apparatus.Yet prices are rather stiff owing to each sensing apparatus, therefore still need do measurement in price and on the time.The present invention promptly in order under the consideration of certain cost, reduces Measuring Time, and promotes production efficiency.
Fig. 6 shows another measuring system of the Measuring Time that can further reduce embodiment among Fig. 5.In this embodiment, except placing the sensing apparatus 652,654 and 656 on the horizontal direction slide bar 674 in a fixed manner, but and place outside the sensing apparatus 650 and 658 on the horizontal direction slide bar 674 in the mode of move left and right, also place sensing apparatus 640,642,644 and 646 moving up and down respectively, to measure 4 tested points 601～604 respectively in image frame 660 corners in four corners of framework 670.By increasing these 4 sensing apparatus 640,642,644 and 646, the embodiment among comparable Fig. 5 reduces by 2 measuring processs, promptly only need carry out measuring the measurement that just can finish all tested points 7 times.These 9 sensing apparatus 640,642,644,646,650,652,654,656 and 658 measuring sequence for example are:
Measure tested point 611～613 respectively with sensing apparatus 650,654 and 658, and measure tested point 601～604 respectively with sensing apparatus 640,642,644 and 646;
The horizontal direction that moves up slide bar 674 is measured tested point 614～616 respectively with sensing apparatus 650,654 and 658;
The horizontal direction that moves up slide bar 674 is measured tested point 617～619 respectively with sensing apparatus 650,654 and 658;
The horizontal direction that moves up slide bar 674 is measured tested point 633～636 respectively with sensing apparatus 650,652,656 and 658;
Move down horizontal direction slide bar 674, measure tested point 629～632 respectively with sensing apparatus 650,652,656 and 658;
Move down horizontal direction slide bar 674, measure tested point 625～628 respectively with sensing apparatus 650,652,656 and 658; And
Move down horizontal direction slide bar 674, measure tested point 621～624 respectively with sensing apparatus 650,652,656 and 658.
Measuring sequence shown here only is an illustration, so the order of step (a)～(g) is commutative.Whole measuring process only needs 7 steps, thereby saves more Measuring Time.Because the sensing apparatus 640,642,644 and 646 in four corners can move up and down, therefore can adjust with the ratio of different images picture.
Compare with preceding case, the classic method with 29 tested points of 3 sensing apparatus measurements shown in Figure 2 needs 13 steps, about 90 seconds consuming time altogether.One embodiment of the invention shown in Figure 5 (using 5 sensing apparatus) then needs 9 steps, about 60 seconds consuming time altogether.Another embodiment of the present invention shown in Figure 6 (using 9 sensing apparatus) then needs 7 steps, about 40 seconds consuming time altogether.Therefore, the present invention has reduced the colour brightness of measuring each projector and the time of contrast effectively, and has promoted production efficiency under the consideration of measuring equipment cost definitely.
In addition, though in the above-mentioned explanation, the cross-directional length of projected picture is fixed as the width of framework, the vertical-direction length of projected picture is the difference with the difference of projector's rule then, yet the vertical-direction length that also can make projected picture is fixed as the length of framework, and cross-directional length has difference with the difference of projector's rule.In this case, sensing apparatus can be placed on the vertical direction slide bar, therefore and this vertical direction slide bar can slide on a horizontal direction slide bar, but the sensing apparatus in other 4 corners can be arranged to move left and right, also applicable to the measurement of the projector of various sizes, specification.And, according to spirit of the present invention, the quantity and the distribution mode that can determine sensing apparatus according to the quantity and the position of tested point, and be not limited to the measurement of 29 above-mentioned tested points.Control device of the present invention can be controlled opening or closing of sensing apparatus according to no application.For instance, sensing apparatus 640,642,644 and 646 is after step (a) measures tested point 601～604 among Fig. 6, in step thereafter, control device can cut out sensing apparatus 640,642,644 and 646, also can open these sensing apparatus and tested point 601～604 is carried out duplicate measurements, with the measurement data of more groups of acquisitions.
The above is the preferred embodiments of the present invention only, is not in order to limit scope of the present invention; All other do not break away from the equivalence of being finished under the spirit disclosed in this invention and changes or modification, all should comprise within the scope of the invention.
Claims (20)
1. one kind in order to measure the system of projector output light characteristic, comprising:
One framework places the preceding precalculated position of this projector, and this framework comprises two slide bars, and wherein a slide bar is slidably to place on another slide bar, and wherein an image frame throws on this framework in this projector;
A plurality of first optical sensing apparatus place on one of them of this two slide bar, in order to measure the light characteristic of a plurality of sampling spots on this image frame;
A plurality of second optical sensing apparatus place 4 corners of this framework, in order to measure the light characteristic in 4 corners on this image frame; And
One control device, be connected with these a plurality of first optical sensing apparatus, these a plurality of second optical sensing apparatus and this framework, in order to controlling the position of these a plurality of first optical sensing apparatus and these a plurality of second optical sensing apparatus, and control this a plurality of first optical sensing apparatus reach these a plurality of second optical sensing apparatus these a plurality of sampling spots are measured;
Wherein, according to the quantity of this sampling spot and position and select the quantity and the position of these a plurality of first optical sensing apparatus with an optimal manner.
2. system according to claim 1 is characterized in that, a width of this image frame is identical with the width of this framework, and a length of this image frame then changes with an aspect ratio of this projector.
3. system according to claim 2, it is characterized in that, this two slide bar is respectively the slide bar of a horizontal direction and the slide bar of a vertical direction, wherein the slide bar of this vertical direction is fixed on this framework central authorities, the slide bar of this horizontal direction is to place on the slide bar of this vertical direction in the mode of can slide up and down, and these a plurality of first optical sensing apparatus are arranged on the slide bar of this horizontal direction.
4. system according to claim 3 is characterized in that, this second optical sensing apparatus is to be provided with in mode moving up and down, and adjusts the position of this second optical sensing apparatus up and down according to the aspect ratio of this projector.
5. system according to claim 4, it is characterized in that, if being M and this sampling spot, the maximum quantity that the quantity of this a plurality of sampling spots is N, be positioned at this sampling spot of sustained height is distributed on the individual different height of P, then this optimal manner is for selecting to use this first optical sensing apparatus more than or equal to M, to measure this sampling spot that is positioned at sustained height at one time, carry out P time and measure, to finish the measurement of N sampling spot.
6. system according to claim 4, it is characterized in that, if the quantity of these a plurality of sampling spots is N, the maximum quantity that is positioned at this sampling spot of sustained height is M, this sampling spot is distributed on P the different height, wherein 4 these 4 sampling spots that are positioned at 4 corners of this framework and do not have any other sampling spot and these 4 corners of this N sampling spot are positioned at sustained height, then optimal manner is for selecting to use this first optical sensing apparatus more than or equal to M, to measure this sampling spot that is positioned at sustained height at one time, and measure this 4 sampling spots in these 4 corners simultaneously with this second optical sensing apparatus, carry out " P-2 " inferior measurement, to finish the measurement of N sampling spot.
7. system according to claim 4, it is characterized in that, if these a plurality of sampling spots lay respectively at 4 corners of this image frame, divide equally this image frame and be 9 five equilibriums each five equilibrium central point and divide equally 29 positions of central point that this image frame is each five equilibrium of 16 five equilibriums, then this optimal manner is, measure these 4 sampling spots that are positioned at these 4 corners at one time with this second optical sensing apparatus, and these a plurality of first optical sensing apparatus are measured this sampling spot that is positioned at sustained height at one time, and wherein the maximum quantity of this sampling spot of sustained height is 4.
8. system according to claim 7 is characterized in that, the quantity of these a plurality of first optical sensing apparatus is 4, and places in a movable manner on the slide bar of this horizontal direction.
9. system according to claim 7, it is characterized in that, the quantity of these a plurality of first optical sensing apparatus is 5, and wherein a part places on the slide bar of this horizontal direction in a movable manner, and another part places on the slide bar of this horizontal direction in a fixed manner.
10. system according to claim 1 is characterized in that, this first and second optical sensing apparatus is in order to measure luminosity, brightness and the contrast of projector's light.
11. one kind in order to measure the method for projector output light characteristic, may further comprise the steps:
Throw an image frame on a framework with this projector, wherein this framework comprises the slide bar of a horizontal direction and the slide bar of a vertical direction, and the slide bar of this horizontal direction places on the slide bar of this vertical direction in the mode of can slide up and down;
The quantity that determines the sampling spot on this image frame be N, the maximum quantity that is positioned at this sampling spot of sustained height be M, and this sampling spot be distributed on P the different height;
Select to use first optical sensing apparatus more than or equal to M, to measure this sampling spot that is positioned at sustained height at one time, wherein this first optical sensing apparatus is arranged on the slide bar of this horizontal direction, in order to measure the light characteristic of this sampling spot;
To be connected to a control device of these a plurality of first optical sensing apparatus and this framework, control the position that these a plurality of first optical sensing apparatus move to this sampling spot, and control these a plurality of first optical sensing apparatus these a plurality of sampling spots are carried out P time measurement, and finish the measurement of N sampling spot.
12. method according to claim 11 is characterized in that, this step (a) also comprises:
For to have a width identical with this frame width, a length of this image frame then changes with an aspect ratio of this projector with this image frame projection.
13. method according to claim 11, it is characterized in that, this sampling spot lay respectively at divide equally this image frame be 9 five equilibriums each five equilibrium central point and divide equally 25 positions of central point that this image frame is each five equilibrium of 16 five equilibriums, make in this step (c), foundation is 4 at the maximum quantity of this sampling spot of sustained height, and selects to use this first optical sensing apparatus more than 4 or 4.
14. method according to claim 11, it is characterized in that, the quantity of this first optical sensing apparatus is 5, and wherein a part places on the slide bar of this horizontal direction in a movable manner, and another part places on the slide bar of this horizontal direction in a fixed manner.
15. method according to claim 11 is characterized in that, this first optical sensing apparatus is in order to measure luminosity, brightness and the contrast of projector's light.
16. one kind in order to measure the method for projector output light characteristic, may further comprise the steps:
Throw an image frame on a framework with this projector, wherein this framework comprises the slide bar of a horizontal direction and the slide bar of a vertical direction, and the slide bar of this horizontal direction places on the slide bar of this vertical direction in the mode of can slide up and down;
The quantity that determines the sampling spot on this image frame is that N, the maximum quantity that is positioned at this sampling spot of sustained height are M, this sampling spot is distributed on P the different height and wherein 4 these 4 sampling spots that are positioned at 4 corners of this framework and do not have any other sampling spot and these 4 corners of this N sampling spot are positioned at sustained height;
Select to use first optical sensing apparatus more than or equal to M, to measure this sampling spot that is positioned at sustained height at one time, and use 4 second optical sensing apparatus to measure these 4 sampling spots in these 4 corners, wherein this first optical sensing apparatus device is arranged on the slide bar of this horizontal direction, and this second optical sensing apparatus is in 4 corners of this framework;
To be connected to a control device of this first optical sensing apparatus, this second optical sensing apparatus and this framework, control the position that this first and second optical sensing apparatus moves to this sampling spot, and control this first and second optical sensing apparatus these a plurality of sampling spots are carried out " P-2 " inferior measurement, and finish the measurement of N sampling spot.
17. method according to claim 16 is characterized in that, this step (a) also comprises:
For to have a width identical with this frame width, a length of this image frame then changes with an aspect ratio of this projector with this image frame projection.
18. method according to claim 16, it is characterized in that, this sampling spot lay respectively at this image frame these 4 corners, divide equally this image frame be 9 five equilibriums each five equilibrium central point and divide equally 29 positions of central point that this image frame is each five equilibrium of 16 five equilibriums, make in this step (c), foundation is 4 at the maximum quantity of this sampling spot of sustained height, and selects to use this first optical sensing apparatus more than 4 or 4.
19. method according to claim 16, it is characterized in that, the quantity of this first optical sensing apparatus is 5, and wherein a part places on the slide bar of this horizontal direction in a movable manner, and another part places on the slide bar of this horizontal direction in a fixed manner.
20. method according to claim 16 is characterized in that, this first and second optical sensing apparatus is in order to measure luminosity, brightness and the contrast of projector's light.
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| CN 200610093652 CN101089580A (en) | 2006-06-14 | 2006-06-14 | Measuring system and method for projector |
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| CN 200610093652 CN101089580A (en) | 2006-06-14 | 2006-06-14 | Measuring system and method for projector |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104049442A (en) * | 2014-06-24 | 2014-09-17 | 芜湖市安曼特微显示科技有限公司 | Projector with automatic brightness maintenance function |
| CN106872147A (en) * | 2017-04-28 | 2017-06-20 | 威创集团股份有限公司 | A kind of projector's method for rapidly testing and device |
| KR20190118316A (en) * | 2018-04-10 | 2019-10-18 | 한국광기술원 | Apparatus for measuring performance of illumination |
-
2006
- 2006-06-14 CN CN 200610093652 patent/CN101089580A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104049442A (en) * | 2014-06-24 | 2014-09-17 | 芜湖市安曼特微显示科技有限公司 | Projector with automatic brightness maintenance function |
| CN106872147A (en) * | 2017-04-28 | 2017-06-20 | 威创集团股份有限公司 | A kind of projector's method for rapidly testing and device |
| CN106872147B (en) * | 2017-04-28 | 2020-01-10 | 威创集团股份有限公司 | Projector rapid test method and device |
| KR20190118316A (en) * | 2018-04-10 | 2019-10-18 | 한국광기술원 | Apparatus for measuring performance of illumination |
| KR102074574B1 (en) | 2018-04-10 | 2020-02-06 | 한국광기술원 | Apparatus for measuring performance of illumination |
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