Optics: measuring and testing – Of light reflection
Reexamination Certificate
2006-09-28
2010-11-30
Chowdhury, Tarifur (Department: 2886)
Optics: measuring and testing
Of light reflection
C356S436000, C356S517000, C356S519000, C422S082090
Reexamination Certificate
active
07843571
ABSTRACT:
A sensing system using a sensing element being constituted by a transparent body sandwiched by first and second reflectors one or each of which is in contact with a specimen, and exhibiting an absorption characteristic varying with the specimen. The first reflector is a partially transparent reflective, and the second reflector is completely reflective, or partially transparent reflective. A light injection unit injects light onto the first reflector, and a light detection unit detects the intensity of light outputted from the sensing element in response to the injection. The light injection unit has a wavelength stabilizing arrangement and injects laser light, or injects light at two wavelengths. In the latter case, the light detection unit detects the intensities of outputted light at the two wavelengths, and a calculation unit obtains the difference between the intensities.
REFERENCES:
patent: 4050895 (1977-09-01), Hardy et al.
patent: 4529319 (1985-07-01), Muller
patent: 4678904 (1987-07-01), Saaski et al.
patent: 5210404 (1993-05-01), Cush et al.
patent: 5485277 (1996-01-01), Foster
patent: 5955729 (1999-09-01), Nelson et al.
patent: 6289286 (2001-09-01), Andersson et al.
patent: 7351588 (2008-04-01), Poponin
patent: 7359048 (2008-04-01), Wang et al.
patent: 7403292 (2008-07-01), Tomaru
patent: 7420682 (2008-09-01), Salamon et al.
patent: 7545549 (2009-06-01), Tomaru
patent: 7643156 (2010-01-01), Naya et al.
patent: 2002/0005953 (2002-01-01), Negami et al.
patent: 2002/0109846 (2002-08-01), Naya
patent: 2004/0183176 (2004-09-01), Naya et al.
patent: 2004/0256563 (2004-12-01), Uchida et al.
patent: 2006/0012795 (2006-01-01), Niemax et al.
patent: 2006/0043301 (2006-03-01), Mantele et al.
patent: 2009/0268205 (2009-10-01), Naya
patent: 6135334 (1986-02-01), None
patent: 240537 (1990-02-01), None
patent: 05072119 (1993-03-01), None
patent: 05142142 (1993-06-01), None
patent: 6167443 (1994-06-01), None
patent: 7229829 (1995-08-01), None
patent: 08201279 (1996-08-01), None
patent: 11512518 (1999-10-01), None
patent: 2002517720 (2002-06-01), None
patent: 2002277388 (2002-09-01), None
patent: 2003527606 (2003-09-01), None
patent: 2004232027 (2004-08-01), None
patent: 2005321244 (2005-11-01), None
patent: 0169258 (2001-09-01), None
Takayuki Okamoto et al., “Local plasmon sensor with the gold colloid monolayers deposited upon glass substrates”, Optic Letters, 2000, pp. 372-374, vol. 25, Issue 6.
Hatori Masami
Naya Masayuki
Chowdhury Tarifur
Fujifilm Corporation
Stock, Jr. Gordon J
Sughrue & Mion, PLLC
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