Optical system for measuring retro-reflecting coefficient

A retroreflection coefficient and optical system technology, applied in the measurement of scattering characteristics, etc., can solve the problems of cumbersome test process, low test accuracy, and bulky volume, and achieve the effects of variable incident angle and observation angle, convenient operation, and small size

Active Publication Date: 2015-03-11
ANHUI UNION SAFE TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traffic signs play an important role in traffic safety, but the devices for detecting the retroreflection coefficient of these reflective signs are far behind the actual needs
Most of the existing retroreflection coefficient detect

Method used

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  • Optical system for measuring retro-reflecting coefficient
  • Optical system for measuring retro-reflecting coefficient
  • Optical system for measuring retro-reflecting coefficient

Examples

Experimental program
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Embodiment Construction

[0032] The present invention will be further described below in conjunction with accompanying drawing:

[0033] Such as Figure 1-Figure 2 The shown optical system for measuring the retroreflection coefficient includes an illumination light source, a beam splitter 5 , a mirror, an achromatic objective lens 14 , a filter 8 and a photodiode receiver 7 . The beam splitter 5 is arranged obliquely at an angle of 45 degrees below the illumination source. The reflector, the achromatic objective lens 14 , the optical filter 8 and the photodiode receiver 7 are arranged on the left and right sides of the illumination light source and the beam splitter 5 respectively. A stray light absorbing device 10 is arranged below the beam splitter 5 . Preferably, the achromatic objective lens 14 is a double-bonded achromatic objective lens with a medium focal length. The filter 8 is a vision correction filter, which corrects the visual curve. The photodiode receiver 7 is a silicon photodiode re...

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PUM

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Abstract

The invention relates to an optical system for measuring a retro-reflecting coefficient. The optical system comprises an illumination light source, a spectroscope, a reflector, an achromatic objective, a glass filter and a photodiode receiver, wherein the spectroscope is arranged below the illumination light source; the spectroscope, the achromatic objective, the glass filter and the photodiode receiver are arranged on the left and right sides of the illumination light source and the spectroscope respectively; the illumination light source comprises a warm white LED (Light-Emitting Diode) lamp, as well as a light source microporous diaphragm, a soft lens and a scattered light processing device, which are sequentially arranged below the warm white LED lamp; the spectroscope is a transmission and reflection type spectroscope, and is obliquely arranged below the scattered light processing device; the reflector is a reflex reflector, and comprises a large reflector and a small reflector, which are arranged in a pair. The optical system has the characteristics of small size, high accuracy, convenience in operation, variable incident angle and observation angle and the like.

Description

[0001] technical field [0002] The invention relates to the technical field of retroreflection detection, in particular to an optical system for measuring retroreflection. [0003] Background technique [0004] At present, the traffic construction is developing rapidly, and the traffic signs on the road are also becoming more and more perfect. Traffic signs play an important role in traffic safety, but the devices for detecting the retroreflection coefficient of these reflective signs are far behind the actual needs. Most of the existing retroreflection coefficient detection devices are indoor desktops, which have the disadvantages of bulky, cumbersome testing process, low testing accuracy, etc., and the incident angle and observation angle are fixed, and the focal length is a long focal length. [0005] Contents of the invention [0006] The object of the present invention is to provide an optical system for measuring the retroreflection coefficient, which has the cha...

Claims

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Application Information

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IPC IPC(8): G01N21/47
Inventor 胡辉杨茂林唐岩艾正伟陈淮南
Owner ANHUI UNION SAFE TECH
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