Method for measuring photometric quantity of mesopic vision

A technology of mesovision and measurement method, applied in the field of optical radiation measurement, can solve problems such as errors and inappropriate lighting design, and achieve the effect of convenient operation and strong applicability
CN101813518BInactive Publication Date: 2011-06-01HANGZHOU EVERFINE PHOTO E INFO
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HANGZHOU EVERFINE PHOTO E INFO
Publication Date
2011-06-01
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a method and a device for measuring photometric quantity of mesopic vision. In the measuring method, a spectrograph and a photopic vision luminosity probe are used for measuring relative spectral power distribution and photopic vision photometric quantity of measured light respectively; and the absolute spectral power distribution of the measured light is calculated through the relative spectral power distribution and photopic vision photometric quantity so as to calculate the photometric quantity of the mesopic vision of the measured light according to a mesopic vision model. The method can be suitable for any mesopic vision computation model and has higher measurement accuracy. The mesopic vision photometer combines the spectrograph and the photopic vision luminosity probe into measuring equipment, so that the measuring operation of the mesopic vision is convenient and the measuring equipment is suitable for measuring all light sources.
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Description

technical field

[0001] The invention belongs to the field of optical radiation measurement, and in particular relates to a method for measuring the photometric value of mesopic vision and a measuring device thereof. Background technique

[0002] When the luminance of human eye light stimulus is about 3 cd / m 2 In the above, the vision mainly obtained by the pyramidal cells of the human eye is called photopic vision or cone cell vision, and the photopic vision efficiency function stipulated by CIE It is the foundation and basis of current photometric calculation, measurement and lighting design. The brightness of photostimulation is about 0.001 cd / m 2 In the following, the vision mainly obtained by rod cells in the case of dark adaptation is called scotopic vision or rod cell vision, and CIE also stipulated the light-visual efficiency function of scotopic vision in 1951 , the scotopic light efficiency function curve shifted to the short wave direction relative to the phot...

Claims

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