CN2927090Y - Light-split optical path system of electronic laser transit - Google Patents
Light-split optical path system of electronic laser transit Download PDFInfo
- Publication number
- CN2927090Y CN2927090Y CN 200620026076 CN200620026076U CN2927090Y CN 2927090 Y CN2927090 Y CN 2927090Y CN 200620026076 CN200620026076 CN 200620026076 CN 200620026076 U CN200620026076 U CN 200620026076U CN 2927090 Y CN2927090 Y CN 2927090Y
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- path system
- light
- optical path
- electronic
- laser
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Abstract
The utility model relates to the technical field of measuring instrument, in particular to a light-split optical path system of an electronic laser transit. The light-split optical path system of the electronic laser transit comprises an object lens set, focus lens, a graduation plate and an ocular lens set, characterized in that: combination of three Abble prisms are arranged between the focus lens and the graduation plate. The utility mode overcomes defects for the prior measuring instrument-unclear sight for objects under dark condition. The utility model is very convenient to introduce laser into an aiming device, which can continue measuring work with high precision under dark background.
Description
Affiliated technical field
The utility model relates to the surveying instrument field, specifically the beam split light path system in the electronic laser transit.
Background technology
Electronic theodolite is used for angle measurement, the angle that two points in space are set up an office with respect to instrument stand can be measured, and be the highest instrument of precision in the angle measurement quasi-instrument.Structural principle: need a high-precision sighting system during electronic theodolite angle measurement, its core is a telescope: respectively two targets are aimed at telescope, the angle that telescope is rotated is measured and is shown by electronic measurement system then.Fig. 1 is the electronic theodolite light path system, and by objective lens 1, focusing lens 2, Abbe prism 3, graticule 4, eyepiece group 5 series arrangement are formed.Objective lens here and focusing lens are formed combined objective, by the front and back focusing of focusing lens, the object picture of different distance can be become on graticule, amplify by the picture of eyepiece group with graticule then.This is a typical interior focusing telescopic system.The effect of Abbe prism is an erect image, if there is not the Abbe prism telescope will become inverted image.
Telescopical pointing accuracy in the electronic theodolite is directly determining the measuring accuracy of instrument.But when running into darkness, constructing tunnel or when construction environments such as mine are dark, blurred vision from the mirror of existing electronic theodolite, the pointing accuracy of electronic theodolite has just had problem even can not aim at.
The utility model content
In order to overcome the defective of prior art, the utility model provides a kind of electronic laser transit beam split light path system.
The technical scheme that its technical matters that solves the utility model adopts is: electronic laser transit light path system, by objective lens, focusing lens, graticule, eyepiece group series arrangement are formed, and it is characterized in that: place three Abbe prism combinations between focusing lens and graticule.
Structural principle: laser has three characteristics: monochromaticity is good, energy is high, the depth of parallelism is high.We introduce sighting device with its high these characteristics of the depth of parallelism with laser.Change two Abbe prism groups in the electronic theodolite into three Abbe prism combinations, referring to accompanying drawing 2, promptly on original Abbe prism basis, increase a prism, laser beam is pointed to along diagram and is injected, penetrate along the object lens direction, laser emitting direction and original light shaft coaxle had both guaranteed the realization of laser function like this, did not influence the electronic theodolite original function again.
In order to reach the requirement of electronic laser transit, mix needs at the light path branch of laser aiming and collimation telescope and solve the energy distribution problem, we are at the special rete of light splitting surface plating one deck, this layer plated film requires the laser-transmitting rate in 635nm ± 10nm wavelength coverage is reached more than 98%, and must reach (semi-transparent semi-reflecting rete among Fig. 2) more than 95% to the visible reflectance outside this wavelength region may.So both guaranteed with laser energy to greatest extent transmission go out, the image quality when having guaranteed visual sight again is unaffected.
Compared with prior art, the beneficial effects of the utility model are: unique prism design, and can make telescopic system coaxial, debug conveniently, give user's visual sense good.Reasonably plated film design has guaranteed effective beam split of telescopic system and laser system.It has overcome defective---the blurring of vision under the environmental baseline of dark that existing surveying instrument exists.Be convenient to laser is introduced sighting device, under the environment of dark, can continue high-precision surveying work.
Description of drawings
Fig. 1 is original electronic theodolite light path system figure, wherein: 1 objective lens, 2 focusing lenses, 3 two Abbe prism groups, 4 graticules, 5 eyepiece groups.
Fig. 2 is the local index path of the prism group after the conversion in the utility model electronic laser transit light path system.
Fig. 3 is the utility model electronic laser transit light path system figure, wherein: 1. objective lens, 2 focusing lenses, 4 graticules, 5 eyepiece groups, 6 new three Abbe prisms combinations.
Embodiment
With reference to the accompanying drawings the utility model is further described:
Referring to accompanying drawing 3, electronic laser transit light path system, by objective lens 1, focusing lens 2, graticule 4, eyepiece group 5 series arrangement are formed, and its distinguishing characteristics is: place three Abbe prism combinations 6 between focusing lens and graticule.
Referring to accompanying drawing 2, at the special rete of light splitting surface plating one deck, this layer plated film requires the laser-transmitting rate in 635nm ± 10nm wavelength coverage is reached more than 98%, and must reach more than 95% the visible reflectance outside this wavelength region may.Light splitting surface is with regard to a face, three layers of thicknesses of layers, evaporation MF2+ZnS.
Claims (2)
1, electronic laser transit beam split light path system, by objective lens, focusing lens, graticule, eyepiece group are prolonged linear sequence and are rearranged, and it is characterized in that: place three Abbe prism groups between focusing lens and graticule.
2, electronic laser transit beam split light path system according to claim 1, it is characterized in that: at the light splitting surface of described three Abbe prisms plating one deck the laser-transmitting rate in 635nm ± 10nm wavelength coverage is reached more than 98%, and the visible reflectance outside this wavelength region may is reached rete more than 95%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620026076 CN2927090Y (en) | 2006-05-18 | 2006-05-18 | Light-split optical path system of electronic laser transit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620026076 CN2927090Y (en) | 2006-05-18 | 2006-05-18 | Light-split optical path system of electronic laser transit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2927090Y true CN2927090Y (en) | 2007-07-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620026076 Expired - Fee Related CN2927090Y (en) | 2006-05-18 | 2006-05-18 | Light-split optical path system of electronic laser transit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2927090Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101852919A (en) * | 2010-03-18 | 2010-10-06 | 昆明腾洋光学仪器有限公司 | Laser and visible light light-splitting erecting prism group |
| CN102095405A (en) * | 2010-12-30 | 2011-06-15 | 福州高意通讯有限公司 | Monitoring device for variation of laser angles |
| EP2455783A1 (en) * | 2010-11-18 | 2012-05-23 | Pixon Technologies Corp. | Abbe prism lens with improved focus and reduced flare |
| CN103528561A (en) * | 2012-07-04 | 2014-01-22 | 北京博新精仪科技发展有限公司 | Laser emission device of laser electronic theodolite |
| CN105486292A (en) * | 2015-12-31 | 2016-04-13 | 聚光科技(杭州)股份有限公司 | Coaxiality adjusting device and method |
| CN107576305A (en) * | 2017-07-11 | 2018-01-12 | 天津世纪经纬测量仪器制造有限公司 | A kind of green laser alignment electronic theodolite |
| EP3546989B1 (en) * | 2018-03-26 | 2020-09-16 | Kunming Shunho Optics Co., ltd. | Binocular telescope with digital laser ranging function |
-
2006
- 2006-05-18 CN CN 200620026076 patent/CN2927090Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101852919A (en) * | 2010-03-18 | 2010-10-06 | 昆明腾洋光学仪器有限公司 | Laser and visible light light-splitting erecting prism group |
| EP2455783A1 (en) * | 2010-11-18 | 2012-05-23 | Pixon Technologies Corp. | Abbe prism lens with improved focus and reduced flare |
| CN102095405A (en) * | 2010-12-30 | 2011-06-15 | 福州高意通讯有限公司 | Monitoring device for variation of laser angles |
| CN103528561A (en) * | 2012-07-04 | 2014-01-22 | 北京博新精仪科技发展有限公司 | Laser emission device of laser electronic theodolite |
| CN105486292A (en) * | 2015-12-31 | 2016-04-13 | 聚光科技(杭州)股份有限公司 | Coaxiality adjusting device and method |
| CN107576305A (en) * | 2017-07-11 | 2018-01-12 | 天津世纪经纬测量仪器制造有限公司 | A kind of green laser alignment electronic theodolite |
| EP3546989B1 (en) * | 2018-03-26 | 2020-09-16 | Kunming Shunho Optics Co., ltd. | Binocular telescope with digital laser ranging function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070725 Termination date: 20120518 |