Appeal No. 2006-1685
Application No. 10/081,369
The disclosed invention pertains to an optical sensor.
More particularly, the invention uses two detectors that detect
adjacent bandwidths of radiation in order to detect a wider
bandwidth than can be detected by a single detector.
Representative claim 1 is reproduced as follows:
1. An optical sensor comprising:
a bandpass filter;
a first detector responsive to a low wavelength band
passed by the bandpass filter; and
a second detector responsive to a high wavelength band
passed by the bandpass filter, wherein the low band and high band
are adjacent bands of wavelengths, wherein the combined low band
and high band are wider than can be detected by either the first
or second detector.
The examiner relies on the following references:
Tokuda et al. (Tokuda) 5,144,397 Sep. 01, 1992
Cole et al. (Cole) 5,550,373 Aug. 27, 1996
Hier et al. (Hier) 6,407,439 Jun. 18, 2002
(filed Aug. 19, 1999)
Yokoi 6,459,484 Oct. 01, 2002
(filed Oct. 20, 2000)
Kozlowski et al. 6,483,116 Nov. 19, 2002
(Kozlowski) (filed Sep. 25, 2000)
2
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