Polarized light type visibility measurement instrument

A measuring instrument and diopter technology, which is applied in the field of polarized light diopter measuring instruments, which can solve the problems of not being suitable for engineering technology, insufficient illumination, inaccuracy, etc.

Inactive Publication Date: 2011-11-23
庞蕴繁
View PDF5 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In modern lighting engineering and technology, the subjective evaluation of many people is used to evaluate the quantity of lighting, that is, whether the illuminance (light) is enough, and whether the lighting quality is good enough (whether it is glare, etc.)
Thi

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
  • Polarized light type visibility measurement instrument
  • Polarized light type visibility measurement instrument
  • Polarized light type visibility measurement instrument

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0045] The structure of the main observation part of the polarized diopter measuring instrument of the present invention is shown in Figure (3), wherein Figure (3)a is a front view, and Figure (3)b is a cross-sectional view through A——A section. In Figure (3)b, 1 is the polarizing plate pressure ring; 2 is the polarizing plate; 3 is the grip Raston prism made of quartz crystal; 4 is the sleeve for fixing the prism; 5 is the polarizing plate rotating gear; 6 is the prism Fixed splint; 7, sine-cosine resolver shaft; 8, sine-cosine resolver gear; 9, worm gear; 10, worm; 11, handwheel; 12, polarizer gear; 13, reading plate.

[0046]This instrument is a binocular observation instrument, which can reflect the observed object and its field of view as faithfully as possible, such as color and stereoscopic effect. Turn the hand wheel 11 during measurement, and drive the worm wheel 9 through the worm screw 10, so that the left and right polarizer gears 12 and the sin-cosine resolver gea...

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 polarized light type visibility measurement instrument, in particular a visual optical measurement instrument. Under the condition of keeping background luminance of a view field invariable, the luminance of a target to be measured is changed by the change of the corner of an analyzer in the instrument relative to a polarizer according to a polarization principle of light so that the contrast ratio of the target to the background of the target is changed and the visual critical condition is met, and the corner is converted to the function of visibility; therefore, the aim of measuring the visibility of the target is fulfilled. The visibility measurement instrument is the visual optical measurement instrument in the field of psychophysics. In the illumination engineering and technology, the number and quality of illumination can be evaluated quantitatively, the visual fatigue can be measured quantitatively, and the visibility (seeing or visuality) of special targets (such as maritime navigation, aviation flight and other aspects) can be measured under various natural conditions (climate, rain and fog).

Description

Technical field: [0001] The polarized light type dioptric measuring instrument of the invention belongs to visual optical instruments. In lighting engineering and technology, the quantity and quality of lighting can be quantitatively evaluated, and visual fatigue can be quantitatively measured. It can also be used to quantitatively measure the visibility of special targets under various climatic conditions (visibility or Visibility). Background technique: [0002] In the past, in terms of navigation, in order to measure the observation target (enemy ship or obstacle) under different natural (dark or foggy) conditions, optical wedges were used to make optical instruments. But with the development of science, it has long been eliminated. In modern lighting engineering and technology, the subjective evaluation of many people is used to evaluate the quantity of lighting, that is, whether the illuminance (light) is enough, and whether the lighting quality is good enough (whethe...

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
IPC IPC(8): G01M11/02G01N21/21G01N21/59
Inventor 不公告发明人
Owner 庞蕴繁
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap