Spectrophotometer for accurately measuring light intensity in a

Details Spectrophotometer for accurately measuring light intensity in a Spectrophotometer for accurately measuring light intensity in a

1991-05-02

1992-12-29

Lall, Parshotam S.

Boots, shoes, and leggings

356319, 356328, 364581, G01J 328

Patent

active

051756978

ABSTRACT:
A spectrophotometer utilizes a band-phase filter array for splitting incident light into a plurality of light components of different wavelengths, a plurality of silicon photodiodes for receiving the respective light components, and a memory for storing spectral sensitivity information. The spectral sensitivity information is obtained by integrating the spectral sensitivities of spectrodetectors relative to each sectionalized wavelength regions sectionally generated from a measurement wavelength region. Each of the spectrodetectors include a band-pass filter array and a silicon photodiode in combination. A central processing unit calculates simultaneous equations representing the relation between the output from each of the silicon photodiodes, the spectral sensitivity information stored in memory and the light intensity of the sectionalized wavelength region, to obtain the light intensity.

REFERENCES:
patent: 3804531 (1974-04-01), Kosaka et al.
patent: 4322807 (1982-03-01), Chamran et al.
patent: 4560275 (1985-12-01), Goetz
patent: 4568186 (1986-02-01), Yoshimura et al.
patent: 4669880 (1987-01-01), Nelson et al.
patent: 4685071 (1987-08-01), Lee
patent: 4703437 (1987-10-01), Nishimura
Waveform Data Processing for the Scientific Measurement, Shigeo Minami, Chapter 7, pp. 122-131, issued Apr. 30, 1986.
Color: Theory and Imaging systems, pp. 24-49; Dr. Gunter Wyszecki, 1973 Society of Photographic Scientists and Engineers; Washington D.C.
Chroma Meter CR-100/CR-110, Operational Manual, Minolta: 1984 pp. 1-16 Japan.

Affiliated with

Also associated with

Rating

Spectrophotometer for accurately measuring light intensity in a does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Spectrophotometer for accurately measuring light intensity in a , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spectrophotometer for accurately measuring light intensity in a will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1892428