CN202351439U - High precision pyramid prism - Google Patents
High precision pyramid prism Download PDFInfo
- Publication number
- CN202351439U CN202351439U CN2011204615806U CN201120461580U CN202351439U CN 202351439 U CN202351439 U CN 202351439U CN 2011204615806 U CN2011204615806 U CN 2011204615806U CN 201120461580 U CN201120461580 U CN 201120461580U CN 202351439 U CN202351439 U CN 202351439U
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- side surfaces
- high precision
- prism
- thin layer
- corner cube
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Abstract
The utility model discloses a high precision pyramid prism, which includes a bottom surface, and three mutually vertical side surfaces, wherein prismatic edges are arranged at connection parts of the side surfaces; three arc surfaces are also arranged between the bottom surface and the prismatic edges and are vertical to the bottom surface; the side surfaces form 60-degree included angles with the bottom surface; and the side surfaces and the bottom surface are all coated with antireflection film layers. Through reducing distance between the bottom surface of the cylindrical pyramid prism and the side surfaces of the cylindrical pyramid prism, arranging the three arc surfaces between the prismatic edges of the side surfaces and the bottom surface and coating the side surfaces and the bottom surface with the antireflection film layers, the purposes of simple structure, saved raw material, high measurement accuracy and firm installation and fixation are achieved.
Description
Technical field
The utility model relates to the optical element field, is specifically related to a kind of high precision prism of corner cube.
Background technology
Prism of corner cube is a kind of total reflection prism, for arbitrary incident light that gets into clear aperature, through all will being reflected back by former direction efficiently behind two secondary reflections.The precision of prism of corner cube is represented with the angular error of incident beam, by the orthogonal precision decision between three right angle faces.Prism of corner cube is widely used in the laser ranging of visible light, ultraviolet ray and infrared band, infrared tracking, sensor apparatus etc. because of its characteristic, like all kinds of optical gauges such as telescope, microscope, spirit-leveling instrument, fingerprint instrument, firearms gun sights.Along with the optics development of science and technology; Common prism of corner cube can not meet the demands precision increasingly high all kinds of optical gauges and various imaging device; And its end that is generally at the right cylinder prism is processed into three orthogonal reflecting surface structures, makes volume bigger, and material is practiced thrift inadequately.
The utility model content
For solving the problems of the technologies described above, we proposed a kind of simple in structure, economize in raw materials and high precision prism of corner cube that installing and locating is firm.
For achieving the above object, the technical scheme of the utility model is following:
A kind of high precision prism of corner cube; Comprise bottom surface and three orthogonal sides; Junction, said side is provided with seamed edge, also is provided with three arcwall faces between said bottom surface and the said seamed edge, and said arcwall face is vertical with said bottom surface; Said side and said bottom surface angle are 60 °, and said side and said bottom surface all are coated with antireflective coating.
Preferably, said antireflective coating is any in calcium fluoride thin layer, thin layer of silicon dioxide, alundum (Al thin layer and the lithium fluoride thin layer.
Preferably, said three side views and area are all identical.
Pass through technique scheme; Bottom surface and spacing side between of the utility model through dwindling the right cylinder prism of corner cube; Make and be provided with three arcwall faces between said side seamed edge and the said bottom surface; And said side and said bottom surface all are coated with antireflective coating, thereby have reached simple in structure, economize in raw materials, measuring accuracy is high and the firm purpose of installing and locating.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of the disclosed a kind of high precision prism of corner cube of the utility model embodiment.
The numeral corresponding component title represented among the figure with letter:
1. 2. sides, bottom surface, 3. seamed edges, 4. arcwall faces
Embodiment
To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
The utility model provides a kind of high precision prism of corner cube, and its principle of work is through bottom surface that dwindles the right cylinder prism of corner cube and the spacing between the side, makes and is provided with three arcwall faces between said side seamed edge and the said bottom surface.
Below in conjunction with embodiment and embodiment the utility model is done further detailed explanation.
Embodiment.
As shown in Figure 1; A kind of high precision prism of corner cube comprises bottom surface 1 and three orthogonal sides 2, and junction, said side is provided with seamed edge 3; Also be provided with three arcwall faces 4 between said bottom surface 1 and the said seamed edge 3; Said arcwall face 4 is vertical with said bottom surface 1, and said side 2 is 60 ° with said bottom surface 1 angle, and said side 2 all is coated with antireflective coating with said bottom surface 1.Wherein, said antireflective coating is any in calcium fluoride thin layer, thin layer of silicon dioxide, alundum (Al thin layer and the lithium fluoride thin layer; Said three side views and area are all identical.
Owing to be provided with three seamed edges 3 between three orthogonal sides 2; Between said seamed edge 3 and said bottom surface 1, be provided with said arcwall face 4; Add that three arcwall face 4 equidistance are located at 1 periphery, bottom surface; And between adjacent two arcwall faces 4 rib is arranged also, make prism of corner cube can in mechanical part, be fixed firmly.In addition; Because said side 2 all is coated with any antireflective coating in calcium fluoride thin layer, thin layer of silicon dioxide, alundum (Al thin layer and the lithium fluoride thin layer with said bottom surface 1; The light beam of incident light can better be penetrated and reflect, thereby improved its measuring accuracy.
Pass through technique scheme; Bottom surface 1 and spacing side 2 between of the utility model through dwindling the right cylinder prism of corner cube; Make between seamed edge 3 and the said bottom surface 1 of said side 2 and be provided with three arcwall faces 4, thereby reached simple in structure, economize in raw materials and purpose that installing and locating is firm.
To the above-mentioned explanation of disclosed a kind of high precision prism of corner cube embodiment, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation of spirit that does not break away from the utility model or scope in other embodiments among this paper.Therefore, the utility model will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (3)
1. high precision prism of corner cube; Comprise bottom surface and three orthogonal sides, junction, said side is provided with seamed edge, it is characterized in that; Also be provided with three arcwall faces between said bottom surface and the said seamed edge; Said arcwall face is vertical with said bottom surface, and said side and said bottom surface angle are 60 °, and said side and said bottom surface all are coated with antireflective coating.
2. a kind of high precision prism of corner cube according to claim 1 is characterized in that, said antireflective coating is any in calcium fluoride thin layer, thin layer of silicon dioxide, alundum (Al thin layer and the lithium fluoride thin layer.
3. a kind of high precision prism of corner cube according to claim 1 is characterized in that, said three side views and area are all identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204615806U CN202351439U (en) | 2011-11-21 | 2011-11-21 | High precision pyramid prism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204615806U CN202351439U (en) | 2011-11-21 | 2011-11-21 | High precision pyramid prism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202351439U true CN202351439U (en) | 2012-07-25 |
Family
ID=46540435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204615806U Expired - Fee Related CN202351439U (en) | 2011-11-21 | 2011-11-21 | High precision pyramid prism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202351439U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107526150A (en) * | 2017-10-18 | 2017-12-29 | 四川捷联芯创科技有限公司 | Vitreum, corner cube and its production assembly method |
| CN116623127A (en) * | 2023-05-31 | 2023-08-22 | 北京创思镀膜有限公司 | Optical film preparation method and fixture for pyramid prism |
-
2011
- 2011-11-21 CN CN2011204615806U patent/CN202351439U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107526150A (en) * | 2017-10-18 | 2017-12-29 | 四川捷联芯创科技有限公司 | Vitreum, corner cube and its production assembly method |
| CN107526150B (en) * | 2017-10-18 | 2023-09-29 | 四川捷联芯创科技有限公司 | Glass body, corner cube and production and assembly method thereof |
| CN116623127A (en) * | 2023-05-31 | 2023-08-22 | 北京创思镀膜有限公司 | Optical film preparation method and fixture for pyramid prism |
| CN116623127B (en) * | 2023-05-31 | 2024-02-09 | 北京创思镀膜有限公司 | Optical film preparation method and fixture for pyramid prism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20120725 Termination date: 20141121 |
|
| EXPY | Termination of patent right or utility model |