CN1512244A - Displacement micro interference device - Google Patents
Displacement micro interference device Download PDFInfo
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- CN1512244A CN1512244A CNA021608261A CN02160826A CN1512244A CN 1512244 A CN1512244 A CN 1512244A CN A021608261 A CNA021608261 A CN A021608261A CN 02160826 A CN02160826 A CN 02160826A CN 1512244 A CN1512244 A CN 1512244A
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- wedge
- shaped lens
- image
- displacement
- perturbation device
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 53
- 230000003287 optical effect Effects 0.000 claims abstract description 27
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 5
- 238000004364 calculation method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
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Abstract
The displacement perturbation device has two coaxial wedged lenses capable of rotating relatively to change the optical path of the image and to produce displacement perturbation, and one image detector to pick up the image of displacement perturbation and operate via cooperation with image processing algorithm. The wedged lenses can regulate the displacement magnitude and direction of the image optical path at will and produce displacement perturbation in any position, so that the resolution of the image detector may be raised effectively. The wedged lenses are coaxial and less in number, and this can reduce the volume and lower the cost of the displacement perturbation device.
Description
Technical field
The present invention relates to a kind of displacement perturbation device, refer to a kind of being applicable to by the displacement perturbation that wedge-shaped lens produced of rotating especially to improve the device of image analytic degree.
Background technology
The spatial resolution of general image detector is that the increase with pixel (pixel) number promotes, but is subject to manufacturing technology and cost, and the lifting of pixel often supporter's system price significantly increases.On the other hand, because the demand of high-res image detector increases day by day, the institute that the image detector that therefore possesses low cost and high-res has become market becomes.
At present, industry is eager to search the method that improves resolution under the low-cost condition.General, generally have great expectations of and utilize a displacement perturbation device, wish to cause the image micro-displacement, and by number Zhang Weiyi perturbation image, cooperate image processing calculation rule, calculate and cause the effect of time pixel (subpixel), to improve the spatial resolution of image detector.Method so, mostly be to utilize displacement perturbation device, image is projected to exactly position (lower-left 1/4 pixel for example of the little five equilibrium of pixel, upper left 1/4 pixel, bottom right 1/4 pixel, upper right 1/4 pixel), thereupon by number Zhang Weiyi perturbation image, cooperate image processing calculation rule, calculate and cause the effect of time pixel (subpixel).Yet the method needs excellent performance, can be projected to the position of the little five equilibrium of cutting of pixel exactly, can calculate and cause the effect of time pixel (subpixel) with the calculation of image processing accurately rule, improves resolution.
Before this case proposed, the Taiwan patent was the improvement scheme that proposes at the problems referred to above No. 160012.In this patent case, use a rotating disc to establish four groups of wedge-shaped lens and a hollow position with group, by the deviation up and down of four groups of wedge-shaped lens and the not deviation image of hollow position, and can improve more than the resolution twice of image detector.Yet the technology of this patent case but too much causes the rotating disc volume excessive because of wedge-shaped lens, and the displacement perturbation that simultaneously wedge-shaped lens produced only can be in skew up and down, and the displacement that can't produce image in the optional position is using widely.The refractive index and the angle of inclination of wedge-shaped lens can't reduce simultaneously, cause different image detectors must use different wedge-shaped lens.On the other hand, use this kind displacement perturbation device, need the very little wedge-shaped lens eyeglass of wedged gap, the side is caused the effect and the practical accuracy of displacement perturbation, and low-angle wedge-shaped lens is difficult to processing grinding, and it is big to take volume, it is limited and with high costs to obtain the source, for reducing cost and improving the practicality of volume production and little.
Summary of the invention
Fundamental purpose of the present invention is to provide a kind of displacement perturbation device, can be by the wedge-shaped lens that rotates with the displacement perturbation of generation optional position, to improve image analytic degree.
Another object of the present invention is to provide a kind of displacement perturbation device, can reduce the volume of whole displacement perturbation device, increase portability, improve degree of accuracy, and reduce cost.
For achieving the above object, displacement perturbation device of the present invention mainly includes one first optical mirror slip group; At least two wedge-shaped lens are mounted on the adjacent position of this first optical mirror slip group, and this wedge-shaped lens is rotatable; And an image detector, receive the light of this first optical mirror slip group of this penetrating mistake and these wedge-shaped lens; Wherein, these wedge-shaped lens are between this first optical mirror slip group and this image detector; These wedge-shaped lens are in order to will capture through image projecting to this image detector of this first optical mirror slip group, be changed the change in displacement of the image space that is projected to this image detector image by these wedge-shaped lens of rotation.
The characteristic of displacement perturbation device of the present invention is that above-mentioned these wedge-shaped lens are in order to will be through the image projecting of the first optical mirror slip group image detector to the adjacent position, by these wedge-shaped lens of rotation with image projecting to the change in displacement of the image space that image detector caused, with function that reaches the displacement perturbation and the resolution that improves image projecting.Displacement perturbation device of the present invention also can optionally more comprise second an optical mirror slip group that is positioned between this wedge-shaped lens and this image detector, will focus on and be projeced into this image detector through the light or the image of this wedge-shaped lens.This image detector is meant a charge-coupled device (CCD) (CCD).
In addition, the present invention still can optionally more include at least two rotating discs so that above-mentioned these wedge-shaped lens are mounted on respectively on these rotating discs, to rotate this wedge-shaped lens.Can use simultaneously at least one driving element to rotate to drive each rotating disc rotation and to drive wedge-shaped lens, and wedge-shaped lens can be relative rotation or rotate in the same way to change through the light path of the image of the first optical mirror slip group and be projected to the adjacent position, is to 360 degree between 0 degree as for its rotatable angle.The wedged gap that is applicable to wedge-shaped lens of the present invention does not have special restriction, and the wedged gap that is preferably this wedge-shaped lens is less than 30 degree.The number of these a plurality of wedge-shaped lens is unrestricted, is optionally to increase and decrease, and being preferably wedge-shaped lens is 2.
Therefore, can produce the displacement perturbation of optional position by each wedge-shaped lens of rotation, make image on two dimensional surface, arbitrarily to move, simultaneously its displacement size and direction be by the rotation of wedge-shaped lens, and the design angle of wedge-shaped lens and can adjusting arbitrarily itself, so impel the displacement of bidimensional image can reach less than a pixel easily and improve the purpose of image analytic degree.Simultaneously, the rotating shaft position of wedge-shaped lens rotation of the present invention does not have special restriction, is preferably with coaxial manner (that is the rotating shaft of these wedge-shaped lens is to be positioned at same axis) group and establishes.Therefore the volume of whole displacement perturbation device can reduce and reduce cost.
Description of drawings
Fig. 1 is an Organization Chart of the present invention.
Fig. 2 (A) is that the light path of the present invention's first wedge-shaped lens changes synoptic diagram.
Fig. 2 (B) is the deformation trace synoptic diagram that Fig. 2 (A) is produced.
Fig. 3 (A) is the synoptic diagram of Fig. 2 (A) through second wedge-shaped lens.
Fig. 3 (B) is the deformation trace synoptic diagram that Fig. 3 (A) is produced.
Embodiment
For the clearer technology contents of the present invention of energy, be described as follows especially exemplified by a preferred embodiment.
At first see also Fig. 1 Organization Chart of the present invention, it mainly includes one first optical mirror slip group 11; Two wedge- shaped lens 21,22 are to be mounted on the adjacent position of the first optical mirror slip group 11 and rotatable; One second optical mirror slip group 12 is to be mounted on the adjacent position of above-mentioned wedge- shaped lens 21,22 and to make wedge- shaped lens 21,22 between the second optical mirror slip group 12 and the first optical mirror slip group 11; One image detector 3 is the outside adjacent position that are mounted on the second optical mirror slip group 12.
In present embodiment, image detector 3 is meant a charge-coupled device (CCD).In addition, can use two rotating discs 41,42 that above-mentioned wedge- shaped lens 21,22 is mounted on respectively on these rotating discs 41,42 in addition, rotating disc 41,42 then can use a driving element (figure does not show) to rotate to rotating between 360 degree and driving wedge- shaped lens 21,22 simultaneously in 0 degree with driven in rotation dish 41,42.Can be a step motor as for driving element used in the present invention, other equivalent drive unit also can certainly.
Please consult Fig. 1, Fig. 2 (A) and Fig. 2 (B) simultaneously, when a luminous point of an image 91 through the first optical mirror slip group 11 and when entering first group of wedge-shaped lens 21, the refraction that the light path of this luminous point can be subjected to wedge-shaped lens 21 changes, because wedge-shaped lens 21 can be in 0 degree to rotation between 360 degree, therefore this luminous point can produce change in displacement in the projection on an inferior optical element (for example surface of second group of wedge-shaped lens 22).When wedge-shaped lens 21 rotations, this luminous point causes a track in the projection meeting of an inferior optical element thereupon, and this track is subjected to change in displacement and produces one first circular trace 51 on two dimensional surface.Please consult Fig. 1, Fig. 3 (A) and Fig. 3 (B) simultaneously, afterwards, above-mentioned luminous point can enter second group of wedge-shaped lens 22 again, be subjected to the influence of this wedge-shaped lens 22 equally and produce another time light path deviation, make this luminous point can produce between one second circular trace, 52, the first circular traces 51 and second circular trace 52 and then produce a relative rotation angle 53.At last, above-mentioned image 91 is produced imaging 92 in image detector 3 by the focusing of the second optical mirror slip group 12.Therefore, behind an image 91 process deviations of wedge- shaped lens 21,22 of the present invention, the various different deformation traces of its luminous point can be by two circular expressions, and, can make any position that the displacement perturbation of image 91 can be on two dimensional surface arbitrarily mobile and can contain to any range by the rotation of each wedge- shaped lens 21,22, and designed angle a, b of (adjustments) wedge- shaped lens 21,22 itself.So if will on image detector, make the distance or the displacement of the pixel of former image position micrometric displacement (subpixel) before the image not adjustment, as long as adjust the relative angle of two wedge-shaped lens, promptly can be simply and easily with the displacement or the distance of this luminous point or a pixel of image micrometric displacement, its little amount of moving is because controlled by the anglec of rotation of this wedge-shaped lens, so the anglec of rotation that also can see through this wedge-shaped lens of adjustment micrometric displacement image or luminous point exactly.And because wedge- shaped lens 21,22 designed angle a, b own, can make the displacement perturbation of image 91, and can contain to any range, the displacement that relatively can make image 91 is less than 1 pixel, cooperates the calculation rule of image processing technique can be effectively the image analytic degree of image detector 3 to be improved afterwards again.
In addition, each wedge-shaped lens the 21, the 22nd is established for 41,42 coaxial groups with a rotating disc respectively, therefore the volume of whole displacement perturbation device and not as huge as the conventional apparatus, also can effectively reduce volume, simultaneously because the quantity of wedge- shaped lens 21,22 is also few than conventional apparatus, so also can reduce relatively on the cost.
The employed wedge-shaped lens the 21, the 22nd of present embodiment is two groups, but also viewable design demand and increase its quantity in the practical application.
The foregoing description only is to give an example for convenience of description, and the interest field that the present invention advocated should be as the criterion so that claim is described certainly, but not only limits to the foregoing description.
Claims (10)
1, a kind of displacement perturbation device is characterized in that: mainly include:
One first optical mirror slip group;
At least two wedge-shaped lens are the adjacent position that are mounted on this first optical mirror slip group, and these wedge-shaped lens are also rotatable;
One image detector is the light that receives this first optical mirror slip group of penetrating mistake and these wedge-shaped lens;
Wherein, these wedge-shaped lens are between this first optical mirror slip group and this image detector;
These wedge-shaped lens are in order to being changed the change in displacement of the image space that is projected to this image detector image by these wedge-shaped lens of rotation through the image projecting of this first optical mirror slip group to this image detector.
2, displacement perturbation device according to claim 1 is characterized in that: it more comprises one second optical mirror slip group, is to be mounted between these wedge-shaped lens and this image detector, will focus on this image detector through the light of these wedge-shaped lens.
3, displacement perturbation device according to claim 1 is characterized in that: wherein more include at least two rotating discs, establish these wedge-shaped lens with ccontaining or group respectively.
4, displacement perturbation device according to claim 3 is characterized in that: wherein more include at least one driving element to drive these rotating disc rotations.
5, displacement perturbation device according to claim 4 is characterized in that: wherein this driving element is meant a step motor.
6, displacement perturbation device according to claim 1 is characterized in that: wherein these wedge-shaped lens are to rotate relative to one another to be projected to the adjacent position with the light path that changes the image that passes through this first optical mirror slip group.
7, displacement perturbation device according to claim 1 is characterized in that: wherein the anglec of rotation of these wedge-shaped lens is to 360 degree between 0 degree.
8, displacement perturbation device according to claim 1 is characterized in that: wherein this image detector is meant a charge-coupled device (CCD).
9, displacement perturbation device according to claim 1 is characterized in that: wherein the rotating shaft of these wedge-shaped lens is to be positioned at same axis.
10, displacement perturbation device according to claim 1 is characterized in that: wherein the wedged gap of this two wedge-shaped lens is less than 30 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02160826 CN1212533C (en) | 2002-12-30 | 2002-12-30 | Displacement micro interference device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02160826 CN1212533C (en) | 2002-12-30 | 2002-12-30 | Displacement micro interference device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1512244A true CN1512244A (en) | 2004-07-14 |
| CN1212533C CN1212533C (en) | 2005-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02160826 Expired - Fee Related CN1212533C (en) | 2002-12-30 | 2002-12-30 | Displacement micro interference device |
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| Country | Link |
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| CN (1) | CN1212533C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI628462B (en) * | 2017-07-07 | 2018-07-01 | 上暘光學股份有限公司 | Telecentric lens system |
| CN111953895A (en) * | 2019-08-14 | 2020-11-17 | 立景创新有限公司 | Focusable imaging device |
| CN112540083A (en) * | 2019-09-20 | 2021-03-23 | 深圳中科飞测科技股份有限公司 | Detection system and detection method based on detection system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9001028B2 (en) * | 2006-08-19 | 2015-04-07 | David James Baker | Projector pen |
-
2002
- 2002-12-30 CN CN 02160826 patent/CN1212533C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI628462B (en) * | 2017-07-07 | 2018-07-01 | 上暘光學股份有限公司 | Telecentric lens system |
| CN111953895A (en) * | 2019-08-14 | 2020-11-17 | 立景创新有限公司 | Focusable imaging device |
| CN111953895B (en) * | 2019-08-14 | 2022-07-05 | 广州立景创新科技有限公司 | Focusable imaging device |
| CN112540083A (en) * | 2019-09-20 | 2021-03-23 | 深圳中科飞测科技股份有限公司 | Detection system and detection method based on detection system |
| CN112540083B (en) * | 2019-09-20 | 2024-09-10 | 深圳中科飞测科技股份有限公司 | Detection system and detection method based on detection system |
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| Publication number | Publication date |
|---|---|
| CN1212533C (en) | 2005-07-27 |
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Granted publication date: 20050727 Termination date: 20171230 |