Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Reexamination Certificate
2006-03-21
2006-03-21
Pyo, Kevin (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
C250S306000
Reexamination Certificate
active
07015455
ABSTRACT:
A near-field optical probe has a flat support member having opposed flat surfaces, and a tapered through-hole extends through the support member and terminates at one of the flat surfaces in a narrow aperture. A light collecting layer having a plurality of reflective surfaces is disposed on the support member for collecting and focusing light passing through the narrow aperture. An optical detector disposed above the light collecting layer detects light passing through the light collecting layer.
REFERENCES:
patent: 5294790 (1994-03-01), Ohta et al.
patent: 5635977 (1997-06-01), Hirokane et al.
patent: 6881947 (2005-04-01), Mitsuoka et al.
patent: WO 9603641 (1996-02-01), None
Chiba Norio
Kasama Nobuyuki
Mitsuoka Yasuyuki
Nakajima Kunio
Niwa Takashi
Adams & Wilks
Seiko Instruments Inc.
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