CN202676988U - Lens assembling centering device - Google Patents
Lens assembling centering device Download PDFInfo
- Publication number
- CN202676988U CN202676988U CN 201220338232 CN201220338232U CN202676988U CN 202676988 U CN202676988 U CN 202676988U CN 201220338232 CN201220338232 CN 201220338232 CN 201220338232 U CN201220338232 U CN 201220338232U CN 202676988 U CN202676988 U CN 202676988U
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- graticule
- pointolite
- converges
- camera lens
- splitting piece
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Abstract
A lens assembling centering device is characterized by comprising a point light source (1). One side of the point light source is sequentially provided with an optical filter (2), a first collimating mirror (3), a first reticle (4), a beam split sheet (5) and a gathering lens (6). One side of the gathering lens (6) is opposed to the beam split sheet (5). The other side of the gathering lens (6) is provided with lenses (7) to be assembled and positioned. The positions of the lenses to be assembled and positioned can be slightly adjusted. A second reticle (8) and the first reticle (4) are arranged in a way to be perpendicular to each other. One side of the second reticle (8) is provided with a second collimating mirror (10) one side of which is provided with a CCD camera (9) for imaging. The lens assembling centering device provided in the utility model has the advantages of simple structure, high precision and great detecting and centering speed.
Description
Technical field
The utility model relates to the centring means that uses in a kind of optical mirror slip installation, the centring means of especially a kind of non-contact optical element and system, this device can observe the deviation of lens surface and surperficial image of spherical center, it can be used in the centering assembling process such as catoptron, lens or telescopic system, specifically a kind of eyeglass assembling centring means.
Background technology
At present, in the precision centering process of optical measurement and optical mirror slip, for obtaining better camera lens or Performance of Optical System, accurately eyeglass centering technology is necessary means.In the rotational symmetry system, the adjustment of lens off-centre is crucial installation step.In order to realize well the result of outstanding optical design, lens need as much as possible accurately processing, and, ideally be assemblied on the unique optical axis.If veteran deviser possesses advanced optical design software and up-to-date computing machine, outstanding optical design meeting is than in the past easier acquisition.Utilization moves picture interferometer and automatic polishing machine, and lens surface polishing precision can reach the nm rank.In order to realize outstanding design result fully, and embody the value of precise polished lens processing, lens should reduce the eccentric error that assembles as much as possible when assembling.Do not have careful and accurate assembly work, the input on optical design and accurate machining eyeglass is all with irrevocably lost.Compare with advanced person's design, existing assembling means is difficult to satisfy the demand, and usually causes assembly precision different, the series of problems such as inefficiency.
Summary of the invention
The purpose of this utility model is the requirement that is difficult to adapt to advanced design for existing assembling means, and the assembling centering precision is not high, and the problem of inefficiency designs a kind of eyeglass assembling centring means that quick precision centering is arranged.
The technical solution of the utility model is:
A kind of eyeglass assembling centring means, it comprises pointolite 1 its feature, this pointolite 1 is installed in an end of whole device, its effect is to provide light source for producing the cruciform division line, the other end at whole device is equipped with the assembling eyeglass 7 to be adjusted that needs centering, side at pointolite is equipped with successively optical filter 2, the first collimating mirror 3, the first graticule 4, light splitting piece 5 and converges camera lens 6, and described pointolite 1, optical filter 2, the first collimating mirror 3, the first graticule 4, light splitting piece 5, the center of converging camera lens 6 and assembling eyeglass 7 to be adjusted are arranged in line; A side that converges camera lens 6 is relative with light splitting piece 5, at the opposite side that converges camera lens 6 the fine-tuning coordination positioning mirror sheet 7 to be installed in position is installed; The light of pointolite 1 converges at the first graticule 4 places by optical filter 2 through the first collimating mirror 3, the light of pointolite through the first graticule 4 after irradiation form image and enter light splitting piece 5, then, entering the centre of sphere place that converges behind the camera lens 6 in the spherical reflective surface of coordination positioning mirror sheet 7 to be installed converges, namely converge at the opal picture place of reflecting sphere, through the light after the reflection of the spherical reflective surface of coordination positioning mirror sheet 7 to be installed again by converge camera lens 6 enter light splitting piece 5 back reflections converge to the first graticule 4 vertically arranged the second graticules 8 on form image, enter 9 imagings of CCD camera through the second collimating mirror 10 that is installed in the second graticule 8 one sides again, described the second graticule 8, the center of the second collimating mirror 10 and CCD camera 9 becomes another straight line, and described two straight lines are mutually vertical.
Described pointolite is Halogen lamp LED or common bulb.
Described light splitting piece 5 is semi-transparent semi-reflecting light splitting piece.
The beneficial effects of the utility model:
Even after utilizing the utility model lens to put into lens barrel, still can accurately measure the off-centre of lens apex and the centre of sphere, by observing into that the position of image is adjusted the inclination of every a slice lens and from axle, until each lens face measures and do not have off-centre, whole system can reach an accurate assembly precision.
The utility model is by sending divergent beams, utilizes spheric reflection to determine that lens off-centre can accurately measure the offset of lens two sides sphere, inclination and the off-centre of lens can be adjusted to micron order and a second class precision in assembling.
CCD phase function of the present utility model realizes automatic reception and automatically process the eccentric concrete amount that provides in software.
The utility model can use in the assembling of mobile lens, astronomical telescope head even terahertz optics system widely.
The utility model is simple in structure, is easy to realize, relevant optical system and the components and parts that are equipped with are conventional components and parts.
The utility model device is simple, makes easy to installly, has the efficient height, the characteristics that precision is controlled.
Description of drawings
Fig. 1 is centering principle of the present utility model and system schematic.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
As shown in Figure 1.
A kind of eyeglass assembling centring means, comprise that pointolite 1(can be Halogen lamp LED or common bulb), this pointolite 1 is installed in an end of whole device, its effect is to provide light source for producing the cruciform division line, the other end at whole device is equipped with the assembling eyeglass 7 to be adjusted that needs centering, side at pointolite is equipped with optical filter 2 successively, the first collimating mirror 3, the first graticule 4, light splitting piece 5(should adopt semi-transparent semi-reflecting structure) and converge camera lens 6, described pointolite 1, optical filter 2, the first collimating mirror 3, the first graticule 4, light splitting piece 5, the center of camera lens 6 and assembling eyeglass 7 to be adjusted of converging is arranged in line; A side that converges camera lens 6 is relative with light splitting piece 5, at the opposite side that converges camera lens 6 the fine-tuning coordination positioning mirror sheet 7 to be installed in position is installed; The light of pointolite 1 converges at the first graticule 4 places by optical filter 2 through the first collimating mirror 3, the light of pointolite through the first graticule 4 after irradiation form image and enter light splitting piece 5, then, entering the centre of sphere place that converges behind the camera lens 6 in the spherical reflective surface of coordination positioning mirror sheet 7 to be installed converges, namely converge at the opal picture place of reflecting sphere, through the light after the reflection of the spherical reflective surface of coordination positioning mirror sheet 7 to be installed again by converge camera lens 6 enter light splitting piece 5 back reflections converge to the first graticule 4 vertically arranged the second graticules 8 on form image, enter 9 imagings of CCD camera through the second collimating mirror 10 that is installed in the second graticule 8 one sides again, described the second graticule 8, the center of the second collimating mirror 10 and CCD camera 9 becomes another straight line, and described two straight lines are mutually vertical.
Spotting device of the present utility model is:
At first, pointolite 1 of design; Pointolite 1 can adopt Halogen lamp LED or common bulb;
Secondly, optical filter 2, the first collimating mirror 3, the first graticule 4, light splitting piece 5 are installed successively and are converged camera lens 6 in a side of pointolite, a side that converges camera lens 6 is relative with semi-transparent semi-reflecting light splitting piece 5, at the opposite side that converges camera lens 6 coordination positioning mirror sheet 7 to be installed is installed; The light of pointolite 1 converges at the first graticule 4 places by optical filter 2 through the first collimating mirror 3, the light of pointolite through the first graticule 4 rear portions irradiations form images (cross curve) enter light splitting piece 5 directly refraction enter with the first collimating mirror 3 vertically arranged the second collimating mirrors 10 after send into imaging in the CCD camera, entering the centre of sphere place that converges behind the camera lens 6 in the spherical reflective surface of coordination positioning mirror sheet 7 to be installed through another part light of the first graticule 4 through light splitting piece 5 converges, namely converge at the opal picture place of reflecting sphere, through the light after the reflection of the spherical reflective surface of coordination positioning mirror sheet 7 to be installed again by converge camera lens 6 enter light splitting piece 5 after refraction converge to the image (another cross curve) that forms on the first graticule 4 vertically arranged the second graticules 8 with off-centre and the first graticule 4 information of coordination positioning mirror sheet 7 to be installed, enter 9 imagings of CCD camera through the second collimating mirror 10 again, image (cross curve) in CCD camera 9 compares and (can directly contrast in the CCD camera with the first graticule 4 and the second graticule 8, also image can be sent in the computing machine and be compared), namely can observe the offset that eyeglass 7 spherical reflective surface are located in position to be assembled;
At last, finely tune the position of coordination positioning mirror sheet 7 to be installed, make the first graticule 4 and the second graticule 8 image (two cross curve) in CCD camera 9 overlapping or be in the scope of a permission and get final product.
As can be seen from Figure 1, the line perpendicular direction of the second graticule 8, the second collimating mirror 10 is in the line direction of the first collimating mirror 3 and the first graticule 4.
As seen from Figure 1, pointolite converges at the first graticule place by optical filter, collimating mirror, then graticule enters through light splitting piece and converges camera lens, light converges at the centre of sphere place of tested reflecting surface, namely converges at the opal picture place of reflecting sphere, enters light splitting piece through after the spheric reflection by converging camera lens, converge on another differentiation plate, enter the CCD imaging through another collimating mirror again, the picture of graticule 1 compares with graticule 2, can observe the offset of spherical reflective surface.Focus is converged in outgoing adjust to the centre of sphere place of tested sphere and the opal picture place of reflecting sphere, all emergent raies all impinge perpendicularly on reflecting sphere so, therefore, all emergent raies will be by former outgoing route retrieval system, and incides on the CCD through converging camera lens, catoptron, collimation camera lens.When the focal length that converges camera lens was sufficiently long, this method also can be used for the misalignment measurement of convex surface reflecting sphere.When the centre of sphere and described measuring system existence skew or inclination, can there be obvious the skew in upper two the alleged pictures that break up plates of CCD, the picture of two graticules that CCD obtains when the centre of sphere overlaps with the output focus of system will clearly overlap, and can judge offset error or the droop error of reflecting sphere according to different image situations.
Also can come to monitor respectively, simultaneously with two covers system shown in Figure 1 two sphere off-centre of lens, the optical axis of lens can directly be determined and adjust like this.
Light trend of the present utility model is:
Pointolite 1(Halogen lamp LED or common bulb) by optical filter 2, collimating mirror 3 converges at the first graticule 4 places, then the picture of graticule (cross curve) enters through light splitting piece 5 and converges camera lens 6, light converges at the centre of sphere place of tested reflecting surface 7, namely converge at the opal picture place of reflecting sphere 7, through entering again light splitting piece 5 by converging camera lens 6 after sphere 7 reflections, converge on another differentiation plate 8, enter the CCD9 imaging through another collimating mirror 10 again, the picture of graticule 4 compares with graticule 8, can observe the offset of spherical reflective surface, finely tune the position of coordination positioning mirror sheet 7 to be installed and can realize assembling centering.
The utility model does not relate to partly all, and the prior art that maybe can adopt same as the prior art is realized.
Claims (3)
1. an eyeglass assembles centring means, it is characterized in that it comprises pointolite (1), this pointolite (1) is installed in an end of whole device, its effect is to provide light source for producing the cruciform division line, the other end at whole device is equipped with the assembling eyeglass to be adjusted (7) that needs centering, side at pointolite is equipped with optical filter (2) successively, the first collimating mirror (3), the first graticule (4), light splitting piece (5) and converge camera lens (6), described pointolite (1), optical filter (2), the first collimating mirror (3), the first graticule (4), light splitting piece (5), the center of camera lens (6) and assembling eyeglass to be adjusted (7) of converging is arranged in line; A side that converges camera lens (6) is relative with light splitting piece (5), at the opposite side that converges camera lens (6) the fine-tuning coordination positioning mirror sheet to be installed (7) in position is installed; The light of pointolite (1) converges at the first graticule (4) by optical filter (2) through the first collimating mirror (3) and locates, the light of pointolite forms image through irradiation behind the first graticule (4) and enters light splitting piece (5), then, entering the centre of sphere place that converges behind the camera lens (6) in the spherical reflective surface of coordination positioning mirror sheet to be installed (7) converges, namely converge at the opal picture place of reflecting sphere, enter by converging camera lens (6) that light splitting piece (5) back reflection converges to and the upper image that forms of vertically arranged the second graticule of the first graticule (4) (8) again through the light after the spherical reflective surface reflection of coordination positioning mirror sheet to be installed (7), enter CCD camera (9) imaging through the second collimating mirror (10) that is installed in the second graticule (8) one sides again, described the second graticule (8), the center of the second collimating mirror (10) and CCD camera (9) becomes another straight line, and described two straight lines are mutually vertical.
2. device according to claim 1, the described pointolite of its feature is Halogen lamp LED or common bulb.
3. device according to claim 1 is characterized in that described light splitting piece (5) is semi-transparent semi-reflecting light splitting piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220338232 CN202676988U (en) | 2012-07-13 | 2012-07-13 | Lens assembling centering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220338232 CN202676988U (en) | 2012-07-13 | 2012-07-13 | Lens assembling centering device |
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| Publication Number | Publication Date |
|---|---|
| CN202676988U true CN202676988U (en) | 2013-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220338232 Expired - Lifetime CN202676988U (en) | 2012-07-13 | 2012-07-13 | Lens assembling centering device |
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| CN (1) | CN202676988U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104977726A (en) * | 2015-05-12 | 2015-10-14 | 中国科学院光电技术研究所 | High-precision primary mirror sphere center directing and tracking device used for telescope alignment |
| CN111504344A (en) * | 2020-05-15 | 2020-08-07 | 天津时空经纬测控技术有限公司 | Calibration system and method for calibrating non-contact attitude measurement equipment |
-
2012
- 2012-07-13 CN CN 201220338232 patent/CN202676988U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104977726A (en) * | 2015-05-12 | 2015-10-14 | 中国科学院光电技术研究所 | High-precision primary mirror sphere center directing and tracking device used for telescope alignment |
| CN111504344A (en) * | 2020-05-15 | 2020-08-07 | 天津时空经纬测控技术有限公司 | Calibration system and method for calibrating non-contact attitude measurement equipment |
| CN111504344B (en) * | 2020-05-15 | 2022-03-11 | 天津时空经纬测控技术有限公司 | Calibration system and method for calibrating non-contact attitude measurement equipment |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130116 |
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| CX01 | Expiry of patent term |