Title:
LIGHT RADIATION MEASUREMENT METHOD BASED ON LIGHT FILTERING UNIT AND APPARATUS THEREOF
Document Type and Number:
WIPO Patent Application WO/2016/065856
Kind Code:
A1
Abstract:
A light radiation measurement method based on a light filtering unit, comprising: 1) providing a characteristic colour filtering unit (2) and a correction light filtering unit (3) before a detection unit (1) to obtain multiple actually measured response values of an object to be detected; and 2) selecting one or more sampling regions within a waveband to be detected, and according to a corresponding simultaneous system of equations of expressions of the actually measured response values, calculating the spectrum power distribution within the waveband to be detected. In this method, by introducing a small number of correction light filtering units (3), the spectrum power distribution within the entire detected waveband can be obtained without using a large number of narrow waveband colour filters. At the same time, this method can further use the spectrum power distribution to correct a measurement error for the introduction of a luminosity and chrominance magnitude due to the difference between an actual spectrum response function and a theoretical spectrum response function of the characteristic colour filter unit (2), so as to restore information about aspects, such as the actual colour and brightness of the object to be detected. This method can be applicable to multiple types of detectors, and has the features of simple operation, low costs, a fast response speed and high measurement accuracy. In addition, a light radiation measurement apparatus is further disclosed.
Inventors:
PAN JIANGEN (CN)
YANG JING (CN)
ZHOU CHAO (CN)
YANG JING (CN)
ZHOU CHAO (CN)
Application Number:
PCT/CN2015/076602
Publication Date:
May 06, 2016
Filing Date:
April 15, 2015
Export Citation:
Assignee:
EVERFINE PHOTO E INFORMATION CO LTD (CN)
International Classes:
G01J1/00
Domestic Patent References:
| WO2001059490A1 | 2001-08-16 |
Foreign References:
| CN204214544U | 2015-03-18 | |||
| CN1670493A | 2005-09-21 | |||
| CN203848937U | 2014-09-24 | |||
| CN104062011A | 2014-09-24 | |||
| CN201464052U | 2010-05-12 |
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
北京集佳知识产权代理有限公司 (CN)
北京集佳知识产权代理有限公司 (CN)
Download PDF: