CN102879840A - Reflecting prism - Google Patents

Reflecting prism Download PDF

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Publication number
CN102879840A
CN102879840A CN2012103946228A CN201210394622A CN102879840A CN 102879840 A CN102879840 A CN 102879840A CN 2012103946228 A CN2012103946228 A CN 2012103946228A CN 201210394622 A CN201210394622 A CN 201210394622A CN 102879840 A CN102879840 A CN 102879840A
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CN
China
Prior art keywords
plane
hypotenuse
edge
reflecting prism
prism
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CN2012103946228A
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Chinese (zh)
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CN102879840B (en
Inventor
李淑英
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Technology Group Harbin Measuring Tools&cutting Tools Co ltd
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Harbin Measuring and Cutting Tool Group Co Ltd
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Application filed by Harbin Measuring and Cutting Tool Group Co Ltd filed Critical Harbin Measuring and Cutting Tool Group Co Ltd
Priority to CN201210394622.8A priority Critical patent/CN102879840B/en
Publication of CN102879840A publication Critical patent/CN102879840A/en
Application granted granted Critical
Publication of CN102879840B publication Critical patent/CN102879840B/en
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Abstract

The invention provides a reflecting prism. A ridge prism structure adopted in an optical projector produced at present has high precision requirement on the 90 degrees +/-2 seconds included angle of a ridge prism surface, otherwise double images can be generated. The reflecting prism comprises an inclined surface (1), a bottom surface (2), two multilateral surfaces (3), a vertical surface (4) and a small inclined surface (5), wherein the bottom surface and the small inclined surface are connected by virtue of the inclined surface; the small inclined surface and the bottom surface are simultaneously connected with the vertical surface; the multilateral surfaces comprise bottom edges (6); one end of each bottom edge is connected with a beveled edge (7), the other end of each bottom edge is provided with a vertical edge (8), and the beveled edges and the vertical edges are simultaneously connected with small beveled edges (9); the two multilateral surfaces are positioned at opposite positions of the prism surface; the included angle between each beveled edge and each bottom edge is 60 degrees +/-2 minutes; the included angle between each beveled edge and each small beveled edge is 60 degrees +/-2 minutes; and the included angle between each bottom edge and each vertical edge is 90 degrees +/-1 minute. The reflecting prism provided by the invention is used for reflecting prisms.

Description

Reflecting prism
Technical field:
The present invention relates to a kind of reflecting prism.
Background technology:
What adopt on the optical projector of my production of units at present is roof prism structures, and roof prism is to roof prism face 90 ° ± 2 " accuracy requirement of angle is very high, otherwise, can produce double image.Like this, difficulty of processing increases, and cost is higher.In actual optical system, the combination of prism commonly used realizes the image rotation effect, and these all can increase the structure of product, also can increase the cost of product.
Summary of the invention:
The purpose of this invention is to provide a kind of working (machining) efficiency that improves optical element, overcome the reflecting prism of the deficiency of existing ridge prism.
Above-mentioned purpose realizes by following technical scheme:
A kind of reflecting prism, its composition comprises: inclined-plane, bottom surface, two polygon, vertical plane, little inclined-plane, described inclined-plane connects described bottom surface and described little inclined-plane, described little inclined-plane is connected described vertical plane simultaneously with described bottom surface, described polygon face comprises the base, and described base one end connects hypotenuse, and the described base other end connects stile, described hypotenuse is connected little hypotenuse simultaneously with described stile, and described two polygon faces are in the minute surface relative position; Described hypotenuse and described base angle be 60 ° ± 2 ', described hypotenuse and described little hypotenuse angle be 60 ° ± 2 ', described base and described stile angle be 90 ° ± 1 '.
Described reflecting prism surrounds the reflected light workplace by described two polygon, described inclined-plane, described bottom surface, described vertical plane, described little inclined-plane.
Described reflecting prism, described bottom side length are 20.79 ± 0.1mm, and described hypotenuse length is 127.71 mm, and described base is 24 ± 0.1mm to the height of described hypotenuse, and described stile length is 12 ± 0.1mm.
Beneficial effect:
1. what the present invention adopted is the reflecting prism structure, and role is equivalent to level crossing, mainly is the effect of light path and image rotation of turning back.
2. the processing process of reflecting prism of the present invention has reduced half than roof prism, realized measured object through front group of object lens → light hurdle → after organize object lens → reflecting prism → catoptron → be imaged on the graticule.
3. the present invention has guaranteed image quality.Improved the working (machining) efficiency of optical element, made its installation very convenient.
4. to process reflecting prism extremely convenient in the present invention, guaranteed inclined-plane and bottom surface angle be 60 ° ± 2 ', inclined-plane and little inclined-plane angle be 60 ° ± 2 ', difficulty of processing is simple more than roof prism, can not produce double image, just can reach the effect of turn back light path and image rotation.
Description of drawings:
Accompanying drawing 1 is the structural representation of this product.
Accompanying drawing 2 is structural representations of polygon in the accompanying drawing 1.
Accompanying drawing 3 is vertical views of accompanying drawing 1.
Accompanying drawing 4 is angle and dimensional drawings of accompanying drawing 2.
Accompanying drawing 5 is dimensional drawings of accompanying drawing 3.
Embodiment:
Embodiment 1:
A kind of reflecting prism, its composition comprises: inclined-plane 1, bottom surface 2, two polygon 3, vertical plane 4, little inclined-plane 5, described inclined-plane connects described bottom surface and described little inclined-plane, described little inclined-plane is connected described vertical plane simultaneously with described bottom surface, described polygon face comprises base 6, and described base one end connects hypotenuse 7, and the described base other end connects stile 8, described hypotenuse is connected little hypotenuse 9 simultaneously with described stile, and described two polygon faces are in the minute surface relative position; Described hypotenuse and described base angle be 60 ° ± 2 ', described hypotenuse and described little hypotenuse angle be 60 ° ± 2 ', described base and described stile angle be 90 ° ± 1 '.
Embodiment 2:
Embodiment 1 described reflecting prism surrounds the reflected light workplace by described two polygon, described inclined-plane, described bottom surface, described vertical plane, described little inclined-plane.
Embodiment 3:
Embodiment 1 or 2 described reflecting prisms, described bottom side length is 20.79 ± 0.1mm, and described hypotenuse length is 127.71 mm, and described base is 24 ± 0.1mm to the height of described hypotenuse, and described stile length is 12 ± 0.1mm.
Embodiment 4:
Embodiment 1 or 2 described reflecting prisms are the solid reflecting prism that consists of by the space in described two polygon, described inclined-plane, described bottom surface, described vertical plane, besieged city, described little inclined-plane.
Embodiment 5:
The described reflecting prism of above-described embodiment, described inclined-plane and described bottom surface angle be 60 ° ± 2 ', described inclined-plane and described little inclined-plane angle be 60 ° ± 2 ', described bottom surface and described vertical plane angle be 90 ° ± 1 '.

Claims (3)

1. reflecting prism, its composition comprises: inclined-plane, bottom surface, two polygon, vertical plane, little inclined-plane, it is characterized in that: described inclined-plane connects described bottom surface and described little inclined-plane, described little inclined-plane is connected described vertical plane simultaneously with described bottom surface, described polygon face comprises the base, and described base one end connects hypotenuse, and the described base other end connects stile, described hypotenuse is connected little hypotenuse simultaneously with described stile, and described two polygon faces are in the minute surface relative position; Described hypotenuse and described base angle be 60 ° ± 2 ', described hypotenuse and described little hypotenuse angle be 60 ° ± 2 ', described base and described stile angle be 90 ° ± 1 '.
2. reflecting prism according to claim 1 is characterized in that: surround the reflected light workplace by described two polygon, described inclined-plane, described bottom surface, described vertical plane, described little inclined-plane.
3. reflecting prism according to claim 1, it is characterized in that: described bottom side length is 20.79 ± 0.1mm, and described hypotenuse length is 127.71 mm, and described base is 24 ± 0.1mm to the height of described hypotenuse, and described stile length is 12 ± 0.1mm.
CN201210394622.8A 2012-10-17 2012-10-17 reflecting prism Active CN102879840B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210394622.8A CN102879840B (en) 2012-10-17 2012-10-17 reflecting prism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210394622.8A CN102879840B (en) 2012-10-17 2012-10-17 reflecting prism

Publications (2)

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CN102879840A true CN102879840A (en) 2013-01-16
CN102879840B CN102879840B (en) 2016-05-04

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109283684A (en) * 2018-09-20 2019-01-29 国营芜湖机械厂 The design method and prism of edge of transparent enclosed area observation prism based on Light tools emulation

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1079055A (en) * 1992-05-16 1993-12-01 中国科学院长春光学精密机械研究所 Laser heterodyne common-path interference method and optical system thereof
WO2003075076A1 (en) * 2002-02-28 2003-09-12 3M Innovative Properties Company Compound polarization beam splitters
CN1580866A (en) * 2003-08-01 2005-02-16 台达电子工业股份有限公司 Projection display optical system and its projecting method
JP2008033104A (en) * 2006-07-31 2008-02-14 Canon Inc Finder device and imaging apparatus having the same
CN101598679A (en) * 2008-04-08 2009-12-09 中国人民解放军空军装备研究院航空装备研究所 Probe for acquiring image of transparent part surface crack
CN202837576U (en) * 2012-10-17 2013-03-27 哈尔滨量具刃具集团有限责任公司 Reflecting prism

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1079055A (en) * 1992-05-16 1993-12-01 中国科学院长春光学精密机械研究所 Laser heterodyne common-path interference method and optical system thereof
WO2003075076A1 (en) * 2002-02-28 2003-09-12 3M Innovative Properties Company Compound polarization beam splitters
CN1580866A (en) * 2003-08-01 2005-02-16 台达电子工业股份有限公司 Projection display optical system and its projecting method
JP2008033104A (en) * 2006-07-31 2008-02-14 Canon Inc Finder device and imaging apparatus having the same
CN101598679A (en) * 2008-04-08 2009-12-09 中国人民解放军空军装备研究院航空装备研究所 Probe for acquiring image of transparent part surface crack
CN202837576U (en) * 2012-10-17 2013-03-27 哈尔滨量具刃具集团有限责任公司 Reflecting prism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109283684A (en) * 2018-09-20 2019-01-29 国营芜湖机械厂 The design method and prism of edge of transparent enclosed area observation prism based on Light tools emulation

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Address after: 150040 Heping Road 44, Xiangfang District, Heilongjiang, Harbin

Patentee after: General Technology Group Harbin Measuring Tools&Cutting Tools Co.,Ltd.

Address before: 150040 Heping Road 44, Xiangfang District, Heilongjiang, Harbin

Patentee before: HARBIN MEASURING & CUTTING TOOL GROUP Co.,Ltd.

CP01 Change in the name or title of a patent holder