Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Reexamination Certificate
2007-11-20
2007-11-20
Epps, Georgia (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
C250S206000, C398S156000, C356S139010, C356S141100
Reexamination Certificate
active
11151594
ABSTRACT:
In preferred forms of the invention an array of MEMS mirrors or small mirrors inside an optical system operates closed-loop. These mirrors direct external source light, or internally generated light, onto an object—and detect light reflected from it onto a detector that senses the source. Local sensors measure mirror angles relative to the system. Sensor and detector outputs yield source location relative to the system. One preferred mode drives the MEMS mirrors, and field of view seen by the detector, in a raster, collecting a 2-D or 3-D image of the scanned region. Energy reaching the detector can be utilized to analyze object characteristics, or with an optional active distance-detecting module create 2- or 3-D images, based on the object's reflection of light back to the system. In some applications, a response can be generated. The invention can detect sources and locations for various applications.
REFERENCES:
patent: 2877354 (1959-03-01), Fairbanks et al.
patent: 3644043 (1972-02-01), Jones et al.
patent: 3961179 (1976-06-01), Kuffer
patent: 6281970 (2001-08-01), Cooper et al.
patent: 6700606 (2004-03-01), Borza
patent: 6701093 (2004-03-01), Gotoh et al.
patent: 2 311 163 A (2000-12-01), None
patent: 2 687 791 A-X (1993-08-01), None
patent: 98/13720 A-X (1998-04-01), None
patent: 98/13720 A (1998-04-01), None
Areté Associates
Epps Georgia
Lee Patrick J.
Lippman Peter I.
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