CN2932356Y - A compound eye lens apex coordinate tester - Google Patents
A compound eye lens apex coordinate tester Download PDFInfo
- Publication number
- CN2932356Y CN2932356Y CN 200620044332 CN200620044332U CN2932356Y CN 2932356 Y CN2932356 Y CN 2932356Y CN 200620044332 CN200620044332 CN 200620044332 CN 200620044332 U CN200620044332 U CN 200620044332U CN 2932356 Y CN2932356 Y CN 2932356Y
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- China
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- fly
- eye lens
- light generating
- generating mechanism
- ccd
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Abstract
The utility model provides a vertex coordinate detecting instrument of fly's-eye lens, comprising a parallel light generating mechanism, a imaging lens, a CCD and a pattern recognition mechanism, wherein the imaging lens is disposed on front of a parallel light path of the parallel light generating mechanism, the CCD is arranged on an image-forming surface of the imaging lens, the pattern recognition mechanism is transmitted and connected with the CCD signal, and a positioning device for arranging a fly's-eye lens is positioned between the parallel light generating mechanism and the imaging lens. The vertex coordinate detecting instrument of fly's-eye lens of the utility model is used to detect focal coordinate values of all little lens in the fly's-eye lens, has low detecting error and high efficiency, and is suitable for batch production.
Description
Technical field
The utility model relates to a kind of optical detecting instrument, particularly a kind of fly's-eye lens apex coordinate detector.
Background technology
Fly's-eye lens claims fly lens, array lens again, is to be produced on an overall lens that constitutes together by a plurality of lenslets.In being commonly used in lamp optical system, realize effect with the illumination light homogenising.
The key index of fly's-eye lens is optical centre (the being the summit) coordinate of each lenslet, and it is set according to designing requirement.In the illuminator of liquid crystal projector, utilize two fly's-eye lenses that the non-homogeneous directional light that bulb sends is carried out homogenising, to reach the uniform purpose of illumination.In the middle of such system, coordinate to the optical centre of each lenslet of fly's-eye lens has certain error requirements, in order to control this error of coordinate, common way is with three-coordinates measuring machine each little sphere to be measured, and calculate the coordinate on its summit, such measuring method efficient is very low, and the error of measuring is bigger.
Summary of the invention
The purpose of this utility model is at above shortcomings in the prior art and defective, and a kind of fly's-eye lens apex coordinate detector is provided.
The purpose of this utility model is achieved in that a kind of fly's-eye lens apex coordinate detector, comprise directional light generating mechanism, imaging len, CCD and image recognition mechanism, imaging len is arranged on parallel light path the place ahead of directional light generating mechanism, CCD is arranged on the imaging surface of imaging len, image recognition mechanism links to each other with the ccd signal transmission, is provided with the locating device that is used to settle fly's-eye lens between directional light generating mechanism and imaging len.
Described image recognition mechanism is the computing machine with image identification function.
Described directional light generating mechanism comprises light source and parallel light tube.
The utility model fly's-eye lens apex coordinate detector produces a branch of directional light by the directional light generating mechanism, impinge perpendicularly on the fly's-eye lens, each lenslet in the fly's-eye lens will impinge upon own top directional light and converge on its corresponding focal position, the point diagram that formation is made up of a plurality of focus luminous points, be imaged on the CCD face by imaging len again, CCD arrives image recognition mechanism with the information transmission of point diagram, by simple image recognition, can obtain the focal coordinate value of each lenslet, that is obtain the apex coordinate value of each lenslet.Adopt the utility model fly's-eye lens apex coordinate detector to detect the focal coordinate value of all lenslets in the fly's-eye lens, measuring error is little, and the efficient height is fit to produce in batches.
Description of drawings
Fig. 1 is the theory diagram when including the primary structure of the utility model fly's-eye lens apex coordinate detector and detector and being used to detect fly's-eye lens.
Embodiment
Referring to Fig. 1, fly's-eye lens apex coordinate detector of the present utility model comprises directional light generating mechanism 1, imaging len 2, CCD3 and image recognition mechanism 4.Wherein, directional light generating mechanism 1 comprises light source and parallel light tube; Imaging len 2 is arranged on parallel light path the place ahead of directional light generating mechanism 1; CCD3 is arranged on the imaging surface of imaging len 2; Image recognition mechanism links to each other with the ccd signal transmission, and this image recognition mechanism can be the computing machine with image identification function, obtains the focal coordinate value of all lenslets in the fly's-eye lens in the detection by this calculating function.Between directional light generating mechanism 1 and imaging len 2, also be provided with the locating device (not shown) that is used to settle fly's-eye lens.
The detection method of fly's-eye lens apex coordinate detector of the present utility model is, produce a branch of directional light 11 by directional light generating mechanism 1, impinge perpendicularly on the fly's-eye lens 5, each lenslet on the fly's-eye lens 5 will converge on its corresponding focal position 51 impinging upon own top directional light so, the point diagram that formation is made up of a plurality of focus luminous points, again by imaging len 2, be imaged on the CCD3, CCD3 imports the information of point diagram into image recognition mechanism 4 (computing machine), by simple image recognition, can obtain the coordinate figure of all focuses on the fly's-eye lens 5, that is obtain the apex coordinate value of each lenslet on the fly's-eye lens 5.
Claims (3)
1, a kind of fly's-eye lens apex coordinate detector, it is characterized in that: comprise directional light generating mechanism, imaging len, CCD and image recognition mechanism, imaging len is arranged on parallel light path the place ahead of directional light generating mechanism, CCD is arranged on the imaging surface of imaging len, image recognition mechanism links to each other with the ccd signal transmission, is provided with the locating device that is used to settle fly's-eye lens between directional light generating mechanism and imaging len.
2, fly's-eye lens apex coordinate detector as claimed in claim 1 is characterized in that: described image recognition mechanism is the computing machine with image identification function.
3, fly's-eye lens apex coordinate detector as claimed in claim 1, it is characterized in that: described directional light generating mechanism comprises light source and parallel light tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620044332 CN2932356Y (en) | 2006-07-27 | 2006-07-27 | A compound eye lens apex coordinate tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620044332 CN2932356Y (en) | 2006-07-27 | 2006-07-27 | A compound eye lens apex coordinate tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2932356Y true CN2932356Y (en) | 2007-08-08 |
Family
ID=38348854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620044332 Expired - Fee Related CN2932356Y (en) | 2006-07-27 | 2006-07-27 | A compound eye lens apex coordinate tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2932356Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101988822A (en) * | 2009-07-31 | 2011-03-23 | 夏普株式会社 | Eccentric measuring device, eccentric measuring method, optical element, array and unit thereof |
-
2006
- 2006-07-27 CN CN 200620044332 patent/CN2932356Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101988822A (en) * | 2009-07-31 | 2011-03-23 | 夏普株式会社 | Eccentric measuring device, eccentric measuring method, optical element, array and unit thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |