A laser ranging beam splitting system

A laser ranging and spectroscopic technology, applied in the field of laser range finder, can solve the problems of long design and manufacturing cycle of the whole laser range finder, low level of three parts, complex structure, etc., and achieves easy quality control and production cost. The effect of reducing and increasing the display contrast

Active Publication Date: 2019-07-05
上海脉泽光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the complex structure, large volume, and low level of three parts of the laser rangefinder beam splitter in the prior art, which affect the design of the laser rangefinder and the long manufacturing cycle and high cost. to provide a laser ranging beam splitting system that is small and compact, low in cost, and can improve display contrast under different ambient light intensities to increase user comfort

Method used

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  • A laser ranging beam splitting system
  • A laser ranging beam splitting system
  • A laser ranging beam splitting system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Example 1: see figure 1 , a laser ranging beam splitting system, comprising an objective lens 11 and an eyepiece 16 (17), a beam splitting system is provided in the middle of the objective lens 11 and the eyepiece 16, and the beam splitting system includes a roof ridge half-penta prism group provided on the main optical axis , the roof ridge half-pentaprism group is composed of the first half-pentaprism 12 and the second half-pentaprism 14 opposite to the roof; A liquid crystal display 15 is fixed between 143 and the eyepiece 16; a spectroscopic compensation device is arranged on the side of the roof ridge half-pentaprism group, and the spectroscopic compensation device is composed of a spectroscopic plane mirror 13; the configuration of the spectroscopic plane mirror 13 has a variety of options to choose from , the first solution is that the beam splitting plane mirror 13 is parallel to the main optical axis, and forms an angle of 45° with the second transceiver surfac...

Embodiment 2

[0070] Example 2: see attached Figure 5 , the transceiver surface 143 of the second half pentaprism 14 is facing the objective lens 11, the liquid crystal LCD display 15 is fixed between the transceiver surface 121 of the first half pentaprism 12 and the eyepiece 16 (17); 13 and a compensating right angle prism 33, the beam splitting plane mirror 13 and the compensating right angle prism 33 are respectively located on the two sides corresponding to the main optical axis; The second transceiver surfaces 123 of 12 are all at an angle of 45°, and a self-luminous OLED liquid crystal display 21 and a display imaging lens 22 are arranged on the outside thereof; the compensation right angle prism 33 and the first half pentaprism 12 are glued to form a composite prism, Its outer side is provided with a laser 31 and a matching focusing lens 32, the laser 31 is facing the receiving and transmitting surface 331 of the compensating right angle prism 33; The dielectric film is a reflecti...

Embodiment 3

[0075] Example 3: see attached Figure 9 , the transceiver surface 121 of the first half pentaprism 12 is facing the objective lens 11, and the liquid crystal LCD display 15 is fixed between the transceiver surface 143 of the second half pentaprism 14 and the eyepiece 16 (17); 18 and the compensating isosceles right angle prism 19 are glued together with a cube prism; Opposite to the second transceiver surface 141 of the second half pentaprism 14; the outer side of the first transceiver surface 192 of the isosceles right angle prism 19 is provided with a laser 31 and a matching focusing lens 32 to compensate for the isosceles right angle prism 19. The outer side of the second transceiver surface 191 is provided with a self-luminous OLED liquid crystal display 21 and a matching display imaging lens 22 ; a multi-layer dielectric film is plated on the inclined surface 183 of the beam-splitting right-angle prism 18 of the cube prism, and is compensated by isosceles The inclined s...

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Abstract

The invention discloses a laser range finding beam splitting system including an objective lens and an eye lens and a beam splitting system therebetween. The beam splitting system includes a roof half pentaprism set on a main optical axis, and the roof half pentaprism set is formed by a first half pentaprism and a second half pentaprism; one of the receiving and transmitting surfaces of the first half pentaprism and the second half pentaprism faces the objective lens; a liquid crystal LCD display is fixed between the other receiving and transmitting surface and the eye lens; at least one beam splitting compensation device is arranged at the side of the half pentaprism set, and the beam splitting compensation device is composed of a beam splitting plane mirror or / and a compensation rectangular prism or / and a cubic prism; a laser and / or detector and a matched focusing lens are arranged on the outer side of the beam splitting compensation device; a self-luminous type OLED liquid crystal display and a matched display imaging lens are arranged on the outer side the beam splitting compensation device; and a plurality of dielectric films are plated on reflective lens surfaces or transmission lens surfaces of the half pentaprism set and the beam splitting compensation device. The laser range finding beam splitting system of the invention is good in effect, low in cost, small in size and broad in application.

Description

[0001] 【Technical field】 [0002] The invention belongs to the technical field of laser range finder, in particular to a beam splitting system for laser range finder. [0003] 【Background technique】 [0004] Due to the limitation of the structure of the beam splitter, the laser rangefinders in the prior art have many disadvantages. First, most of them have complex structures, large shapes or volumes, and are difficult to install and debug. It is difficult to control the path, and the stability is not high. Secondly, its beam splitter and related components often need to be specially designed and manufactured, that is, the level of three-dimensionalization (standardization, serialization and generalization) of parts is low, the design and manufacturing cycle is long, and the cost will inevitably increase. [0005] [Content of the invention] [0006] The purpose of the present invention is to overcome the complex structure, large volume, and low level of three parts of the lase...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): G02B27/12
CPCG02B27/126
Inventor左罗
Owner上海脉泽光电科技有限公司