CN103995337A - Long-focus telecentric lens of image measurement instrument - Google Patents
Long-focus telecentric lens of image measurement instrument Download PDFInfo
- Publication number
- CN103995337A CN103995337A CN201410258622.4A CN201410258622A CN103995337A CN 103995337 A CN103995337 A CN 103995337A CN 201410258622 A CN201410258622 A CN 201410258622A CN 103995337 A CN103995337 A CN 103995337A
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- lens
- mirror
- concave mirror
- small
- convex mirror
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Abstract
The invention discloses a long-focus telecentric lens of an image measurement instrument. The long-focus telecentric lens comprises a lens portion and a lens body portion. The lens portion is fixedly connected with the lens body portion. The lens portion comprises a concave mirror, a convex mirror, a small convex mirror and a small concave mirror, wherein the concave mirror, the convex mirror, the small convex mirror and the small concave mirror are sequentially arranged. Threads are arranged on the outer sides of the concave mirror, the convex mirror, the small convex mirror and the small concave mirror in a surrounding mode, and corresponding circular discs are screwed to the threads and clamped with one another. A bi-convex lens is arranged at the front end of the lens body portion, a lens set arranged in the light inlet direction is installed in the lens body portion, and a corresponding pressing ring is arranged in the rear of the lens set. The long-focus telecentric lens of the image measurement instrument is flexible and convenient to use, reasonable in structure, and capable of being suitable for observing small objects and overcoming errors produced by measurement, and meanwhile, the lens can be freely replaced.
Description
Technical field
The present invention relates to a kind of burnt telecentric lens of length of image measurer.
Background technology
While being used for closely observing and measuring compared with wisp, require camera lens will have enough enlargement factors on the one hand, can observe the slight part of body surface, require again on the other hand image not occur distortion, traditional camera lens can be realized the function of large multiple, but the light that enters camera lens due to body surface reflection is radial pattern, in the time that the distance of object and camera lens changes, chief ray can be inconsistent with the difference of distance, object just there will be change at the imaging size of video camera CCD target surface, when change scope is larger, image also there will be distortion, therefore the change of object and distance of camera lens can affect measurement result, there is measuring error.
General by exchanging distance or the anglec of rotation of step motor control camera lens in prior art, because this control mode is more limited to the rotation of camera lens especially translation, therefore the zoom of camera lens is also limited, cannot effectively meet the requirement to the large small workpiece of difference or different measuring accurate rate.
Summary of the invention
For the technical matters of above-mentioned existence, the object of the invention is: proposed a kind of flexibly and easily, rational in infrastructure, and can be applicable to the less object of observation and overcome measure the error producing, arbitrarily changed the burnt telecentric lens of length of the image measurer of eyeglass simultaneously.
Technical solution of the present invention is achieved in that the burnt telecentric lens of a kind of length 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 concave mirror setting gradually, convex mirror, little convex mirror and little concave mirror, described concave mirror, convex mirror, little convex mirror and little concave mirror outer ring are wound with screw thread, on described screw thread, screw in corresponding disk, described each disk holds mutually, described mirror body front end is provided with biconvex eyeglass, in described mirror body, be equipped with and be pressed into the lens set that light direction arranges, described lens set rear portion is provided with corresponding trim ring.
As preferably, described camera lens part circle of position cylindricality arranges.
As preferably, described lens set is concave mirror lens set.
Due to the utilization of technique scheme, the present invention compared with prior art has following advantages:
The burnt telecentric lens of length of image measurer of the present invention, owing to being provided with camera lens part, can utilize the architectural feature of the mutual stack combinations of multiple eyeglasses, overcome the error of measurement, the less object of observation is also convenient in the setting of multiple camera lenses simultaneously, owing to being provided with disk, simultaneously described each disk holds mutually, can utilize the architectural feature that holds and be threaded, and makes the replacing of eyeglass convenient, thereby reach the effect of focusing, more flexible.
Brief description of the drawings
Below in conjunction with accompanying drawing, technical solution of the present invention is described further:
Fig. 1 is the planimetric map of the burnt telecentric lens of length 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, a kind of burnt telecentric lens of length 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 concave mirror 3 setting gradually, convex mirror 4, little convex mirror 5 and little concave mirror 6, incident direction according to light sets gradually, can reach the effect of many times of amplifications, described concave mirror 3, convex mirror 4, little convex mirror 5 and little concave mirror 6 outer rings are wound with screw thread 7, on described screw thread 7, screw in corresponding disk 8, described each disk 8 holds mutually, the front and rear of disk 8 is provided with corresponding annular protrusion (not shown) and annular groove (not shown), hold fixing by the structure of annular protrusion and annular groove, in the time loading mirror, disk 8 is threaded with corresponding mirror, then hold and can reach simple stack fixed effect with other disk 8, described mirror body 2 front ends are provided with biconvex eyeglass 9, in described mirror body 2, be equipped with and be pressed into the lens set 10 that light direction arranges, described lens set 10 rear portions are provided with corresponding trim ring 11, trim ring 11 is pushed down lens set 10 and is fixed.
Described camera lens part 1 circle of position cylindricality arranges, and is convenient to precession and back-out.
Described lens set 10 is concave mirror lens set, matches reach the effect of amplifying focal length with the eyeglass of camera lens part.
The invention has the beneficial effects as follows: owing to being provided with camera lens part, can utilize the architectural feature of the mutual stack combinations of multiple eyeglasses, overcome the error of measurement, the less object of observation is also convenient in the setting of multiple camera lenses simultaneously, and owing to being provided with disk, simultaneously described each disk holds mutually, can utilize the architectural feature that holds and be threaded, make the replacing of eyeglass convenient, thereby reach the effect of focusing, more flexible.
Above-described embodiment is only explanation technical conceive of the present invention and feature; its object is to allow person skilled in the art can understand content of the present invention and be implemented; can not limit the scope of the invention with this; all equivalences that Spirit Essence is done according to the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (3)
1. the burnt telecentric lens of the length 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 includes the concave mirror setting gradually, convex mirror, little convex mirror and little concave mirror, described concave mirror, convex mirror, little convex mirror and little concave mirror outer ring are wound with screw thread, on described screw thread, screw in corresponding disk, described each disk holds mutually, described mirror body front end is provided with biconvex eyeglass, in described mirror body, be equipped with and be pressed into the lens set that light direction arranges, described lens set rear portion is provided with corresponding trim ring.
2. the burnt telecentric lens of the length of image measurer according to claim 1, is characterized in that: described camera lens part circle of position cylindricality arranges.
3. the burnt telecentric lens of the length of image measurer according to claim 1, is characterized in that: described lens set is concave mirror lens set.
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 true CN103995337A (en) | 2014-08-20 |
| CN103995337B 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) |
Citations (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 |
| EP1336886A2 (en) * | 2002-02-13 | 2003-08-20 | Mitutoyo Corporation | Telecentric 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 |
-
2014
- 2014-06-12 CN CN201410258622.4A patent/CN103995337B/en not_active Expired - Fee Related
Patent Citations (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 |
| EP1336886A2 (en) * | 2002-02-13 | 2003-08-20 | Mitutoyo Corporation | Telecentric 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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| Publication number | Publication date |
|---|---|
| CN103995337B (en) | 2016-06-08 |
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| 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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| 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 |