Wavelength measuring device for a single light receiving...

Details Wavelength measuring device for a single light receiving... Wavelength measuring device for a single light receiving...

2004-08-09

2008-08-12

Luu, Thanh X (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Temperature control of photocell

C356S425000

Reexamination Certificate

active

07411178

ABSTRACT:
A wavelength measuring device includes: a light receiving element that receive light to be measured; a temperature controller that maintains the light receiving element at different temperatures; and a calculation unit that determines the wavelength of the light to be measured, based on the outputs of the light receiving elements.

REFERENCES:
patent: 4189235 (1980-02-01), Guter et al.
patent: 5266792 (1993-11-01), Crowne et al.
patent: 2005/0018184 (2005-01-01), Imura
patent: 2-1995 (1990-01-01), None
patent: 6-58817 (1994-03-01), None
patent: 6-76830 (1994-10-01), None
patent: 2002-340688 (2002-11-01), None

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