Radiant energy – Photocells; circuits and apparatus – Photocell controls its own optical systems
Reexamination Certificate
2005-09-12
2009-11-03
Luu, Thanh X (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
Photocell controls its own optical systems
C250S234000
Reexamination Certificate
active
07612317
ABSTRACT:
A targeting and tracking apparatus and method for optical transceivers is disclosed. The tracking function is performed internally by way of translating an internal optical fiber in the focal plane of the transceiver telescope using miniature motorized translation systems and/or micro-electro-mechanical systems (MEMS). The optical design of the transceiver provides a wide field of view and a pointing and tracking field of regard that is directly proportional to the translation of the optical fiber in the focal plane of the telescope. The apparatus and method can eliminate the need for external gimballing systems and scanning mirrors, and replace the gimballed optical beam steering function with motorized translation systems and/or MEMS that consumes very little power.
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U.S. Appl. No. 11/224,745, filed Sep. 12, 2005, Apparatus and Method for Free Space Optical Communications Beam Steering without Gimbals.
U.S. Appl. No. 11/224,473, filed Sep. 12, 2005, MEMS-Based Optical Communications Beam Steering Apparatus.
Chalfant, III Charles H.
Gregory Jeffrey T.
O'Neal Chad B.
Orlando Fred J.
Tidwell Terry L.
Dougherty J. Charles
Luu Thanh X
Space Photonics, Inc.
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