A laser range finding beam splitting system

A technology of laser ranging and light splitting, which is applied in the field of laser rangefinders, can solve the problems of long design and manufacturing cycle of laser rangefinders, low level of three parts, complex structure, etc., and achieves easy quality control and low production costs. Reduce and increase the effect of display contrast

Active Publication Date: 2017-11-07
上海脉泽光电科技有限公司
View PDF3 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 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 and manufacture of the laser rangefinder. The cycle is long and the cost is high. 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A laser range finding beam splitting system
  • A laser range finding beam splitting system
  • A laser range finding beam splitting system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Embodiment 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 arranged in the middle of the objective lens 11 and the eyepiece 16, and the beam splitting system includes a roof half pentaprism group arranged on the main optical axis , the roof half pentaprism group is made up of the relative first half pentaprism 12 and the second half pentaprism 14 of the roof; A liquid crystal LCD display 15 is fixed between 143 and the eyepiece 16; a light-splitting compensation device is arranged on the side of the half pentaprism group, and the light-splitting compensation device is made of a light-splitting plane mirror 13; the disposition mode of the light-splitting plane mirror 13 has multiple schemes to choose from, The first scheme is that the light splitter plane mirror 13 is parallel to the principal optical axis, and all forms an angle of 45° with the second receiving and receiving sur...

Embodiment 2

[0063] Embodiment 2: see attached Figure 5 , the receiving and receiving surface 143 of the second half pentaprism 14 is facing the objective lens 11, and a liquid crystal LCD display 15 is fixed between the receiving and receiving surface 121 of the first half pentaprism 12 and the eyepiece 16 (17); 13 and a compensating right-angled prism 33 constitute, beam-splitting plane mirror 13 and compensating right-angled prism 33 are respectively in the two sides corresponding to the main optical axis; The second receiving and receiving surface 123 of 12 all becomes 45 ° angle, and its outside is provided with self-illuminating type OLED liquid crystal display 21 and the display imaging lens 22 that is matched with it; A laser 31 and a matching focusing lens 32 are arranged on its outside, and the laser 31 faces the receiving and receiving surface 331 of the compensating rectangular prism 33; The dielectric film is a reflective film for light waves with a wavelength of 400nm-620nm...

Embodiment 3

[0068] Embodiment 3: see attached Figure 9 , the transceiver surface 121 of the first half pentaprism 12 is facing the objective lens 11, and a 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 compensation isosceles rectangular prism 19 are glued together to form a cubic prism; the first receiving and receiving surface 181 of the light splitting rectangular prism 18 is facing the second receiving and receiving surface 123 of the first half pentaprism 12, and the second receiving and receiving surface 182 of the light splitting rectangular prism 18 Facing the second transceiving surface 141 of the second half pentaprism 14; The outside of the second transceiver surface 191 is provided with a self-illuminating OLED liquid crystal display 21 and a display imaging lens 22 supporting it; on the slope 183 of the beam splitting rectangular prism 18 of the cube prism, a multi-layer dielectric ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

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

【Technical field】 [0001] The invention belongs to the technical field of laser range finders, and in particular relates to a beam splitting system for laser range finders. 【Background technique】 [0002] Due to the limitations of the beam splitter structure in the prior art, there are many unsatisfactory aspects of the laser range finder. Firstly, most of them have complex structures, large shapes or volumes, and high difficulty in installation and debugging. It is difficult to control the path, and there is a phenomenon of low stability. Secondly, its beam splitter and related components often need to be specially designed and manufactured, that is, the level of three parts (standardization, serialization and generalization) of parts is low, the design and manufacturing cycle is long, and the cost will inevitably increase. 【Content of invention】 [0003] The purpose of the present invention is to overcome the complex structure, large volume, and low level of three parts ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & AuthorityApplications(China)
IPC IPC(8): G02B27/12
CPCG02B27/126
Inventor左罗
Owner上海脉泽光电科技有限公司