CN103995337B - The focal length telecentric lens of a kind of image measurer - Google Patents
The focal length telecentric lens of a kind of image measurer Download PDFInfo
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- CN103995337B CN103995337B CN201410258622.4A CN201410258622A CN103995337B CN 103995337 B CN103995337 B CN 103995337B CN 201410258622 A CN201410258622 A CN 201410258622A CN 103995337 B CN103995337 B CN 103995337B
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- lens
- mirror body
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- concavees
- focal length
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Abstract
The present invention discloses the focal length telecentric lens of a kind of image measurer, comprise camera lens part and mirror body, described camera lens part is fixedly connected with mirror body, described camera lens part includes the concavees lens arranged successively, convex lens, little convex lens and little concavees lens, described concavees lens, convex lens, little convex lens and little concavees lens outer ring are wound with screw thread, described screw thread screws in corresponding disk, each disk described holds mutually, described mirror body front end is provided with biconvex eyeglass, described mirror body is built with the lens set being pressed into light direction setting, described lens set rear portion is provided with corresponding trim ring, the focal length telecentric lens of this image measurer is flexible, rational in infrastructure, and can be applicable to observe less object and overcome the error measured and produce, and arbitrarily changes eyeglass simultaneously.
Description
Technical field
The present invention relates to the focal length telecentric lens of a kind of image measurer.
Background technology
During for closely observation and measurement less object, require that camera lens to be had enough magnifications on the one hand, the slight part of body surface can be observed, require again that distortion does not occur in image on the other hand, traditional camera lens can realize the function of big multiple, but the light entering camera lens due to body surface reflection is radial pattern, when the distance of object and camera lens changes, key light line can be inconsistent with the difference of distance, object just there will be change at the imaging size of pick up camera CCD target surface, when change scope is bigger, image also there will be distortion, therefore the change of object and distance of camera lens can affect measuring result, measuring error occurs.
The general distance by exchange step motor control camera lens or angle of rotation in prior art, owing to the rotation of camera lens is especially translated more limited by this kind of control mode, therefore change Jiao of camera lens is also limited, cannot effectively meet the requirement to the big small workpiece of difference or different measuring accurate rate.
Summary of the invention
For the technical problem of above-mentioned existence, it is an object of the invention to: propose a kind of flexible, rational in infrastructure, and can be applicable to observe less object and overcome the error measured and produce, arbitrarily change the focal length telecentric lens of the image measurer of eyeglass simultaneously.
The technical solution of the present invention is achieved in that the focal length telecentric lens of a kind of image measurer, comprise camera lens part and mirror body, described camera lens part is fixedly connected with mirror body, described camera lens part includes the concavees lens arranged successively, convex lens, little convex lens and little concavees lens, described concavees lens, convex lens, little convex lens and little concavees lens outer ring are wound with screw thread, described screw thread screws in corresponding disk, each disk described holds mutually, described mirror body front end is provided with biconvex eyeglass, described mirror body is built with the lens set being pressed into light direction setting, described lens set rear portion is provided with corresponding trim ring.
As preferably, described camera lens part is cylindrical setting.
As preferably, described lens set is concave spectacle lens group.
Due to the utilization of technique scheme, the present invention compared with prior art has following advantage:
The focal length telecentric lens of image measurer of the present invention, owing to being provided with camera lens part, can utilizing the constitutional features of the mutual stack combinations of multiple eyeglass, overcome the error of measurement, the setting of multiple camera lens simultaneously also is convenient to observe less object, owing to being provided with disk, each disk described holds mutually simultaneously, it is possible to utilizes the constitutional features holding and being threaded, makes the replacing of eyeglass convenient, thus reach the effect focused, more flexibly.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, technical solution of the present invention is described further:
Fig. 1 is the orthographic plan of the focal length telecentric lens of a kind of image measurer of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described.
Consult shown in Fig. 1, the focal length telecentric lens of a kind of image measurer, comprise camera lens part 1 and mirror body 2, described camera lens part 1 is fixedly connected with mirror body 2, described camera lens part 1 includes the concavees lens 3 arranged successively, convex lens 4, little convex lens 5 and little concavees lens 6, arrange successively according to the incident direction of light, the many times of effects amplified can be reached, described concavees lens 3, convex lens 4, little convex lens 5 and little concavees lens 6 outer ring are wound with screw thread 7, described screw thread 7 screws in corresponding disk 8, each disk 8 described holds mutually, the front and rear of disk 8 is provided with corresponding annular protrusion (not shown) and annular recesses (not shown), undertaken holding fixing by the structure of annular protrusion and annular recesses, when loading mirror, disk 8 is threaded with corresponding mirror, then carry out holding with other disk 8 and can reach simple and superpose fixed effect, described mirror body 2 front end is provided with biconvex eyeglass 9, described mirror body 2 is built with the lens set 10 being pressed into light direction setting, described lens set 10 rear portion is provided with corresponding trim ring 11, trim ring 11 is pushed down lens set 10 and is fixed.
Described camera lens part 1 is cylindrical setting, is convenient to precession and back-out.
Described lens set 10 is concave spectacle lens group, the effect matching with the eyeglass of camera lens part and reaching and amplify focal length.
The invention has the beneficial effects as follows: owing to being provided with camera lens part, the constitutional features of the mutual stack combinations of multiple eyeglass can be utilized, overcome the error of measurement, the setting of multiple camera lens simultaneously also is convenient to observe less object, and owing to being provided with disk, each disk described holds mutually simultaneously, the constitutional features holding and being threaded can be utilized, make the replacing of eyeglass convenient, thus reach the effect focused, more flexibly.
Above-described embodiment is only for illustrating technical conceive and the feature of the present invention; its object is to allow person skilled in the art can understand the content of the present invention and implemented; can not limit the scope of the invention with this; all equivalences done according to spirit of the invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (1)
1. the focal length telecentric lens of an image measurer, it is characterized in that: comprise camera lens part and mirror body, described camera lens part is fixedly connected with mirror body, described camera lens part is cylindrical setting, described camera lens part includes the concavees lens arranged successively, convex lens, little convex lens and little concavees lens, described concavees lens, convex lens, little convex lens and little concavees lens outer ring are wound with screw thread, described screw thread screws in corresponding disk, each disk described holds mutually, described mirror body front end is provided with biconvex eyeglass, described mirror body is built with the lens set being pressed into light direction setting, described lens set is concave spectacle lens group, described lens set rear portion is provided with corresponding trim ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410258622.4A CN103995337B (en) | 2014-06-12 | 2014-06-12 | The focal length telecentric lens of a kind of image measurer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410258622.4A CN103995337B (en) | 2014-06-12 | 2014-06-12 | The focal length telecentric lens of a kind of image measurer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103995337A CN103995337A (en) | 2014-08-20 |
| CN103995337B true CN103995337B (en) | 2016-06-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410258622.4A Expired - Fee Related CN103995337B (en) | 2014-06-12 | 2014-06-12 | The focal length telecentric lens of a kind of image measurer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103995337B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4908705A (en) * | 1988-01-21 | 1990-03-13 | Fairchild Weston Systems, Inc. | Steerable wide-angle imaging system |
| JP2002162562A (en) * | 2000-11-27 | 2002-06-07 | Casio Comput Co Ltd | Photographic lens |
| JP4157305B2 (en) * | 2002-02-13 | 2008-10-01 | 株式会社ミツトヨ | Telecentric lens system and image measuring device |
| CN102645718A (en) * | 2012-03-30 | 2012-08-22 | 苏州怡信光电科技有限公司 | Telecentric lens of image measuring instrument |
| CN203930179U (en) * | 2014-06-12 | 2014-11-05 | 苏州科德溯源仪器有限公司 | A kind of burnt telecentric lens of length of image measurer |
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2014
- 2014-06-12 CN CN201410258622.4A patent/CN103995337B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN103995337A (en) | 2014-08-20 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Gu Shaojie Inventor before: Cui Dezhu |
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| COR | Change of bibliographic data | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160512 Address after: Hangzhou City, Zhejiang Province, 311100 Yuhang District Nanyuan Street Cannes products garden 4 unit 2 building room 1203 Applicant after: Gu Shaojie Address before: Zhujiang Road Wuzhong District Mudu town of Suzhou city in Jiangsu province 215000 No. 368 Applicant before: The Suzhou Coude Instrument Ltd. that traces to the source |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160608 Termination date: 20170612 |
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| CF01 | Termination of patent right due to non-payment of annual fee |