Device for selectively detecting specific wavelength...

Details Device for selectively detecting specific wavelength... Device for selectively detecting specific wavelength...

2007-05-29

2007-05-29

Luu, Thanh X. (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

C356S326000

Reexamination Certificate

active

10923239

ABSTRACT:
A device for selectively detecting specific wavelength components of a light beam includes a spectral spreading element for spectrally spreading the light beam, and a detector array arranged downstream of the element. The detector array includes light-insensitive regions and light-sensitive regions. The element and the detector array are matched to each other so that selectable wavelength components of the light beam hit the light-insensitive regions and remaining wavelength components of the light beam hit the light-sensitive regions.

REFERENCES:
patent: 5014121 (1991-05-01), Hasegawa et al.
patent: 6459484 (2002-10-01), Yokoi
patent: 100 16 361 (2001-10-01), None
patent: 10102033 (2002-08-01), None

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