Radiant energy – Photocells; circuits and apparatus – Photocell controls its own optical systems
Reexamination Certificate
2005-09-28
2008-08-19
Le, Que (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
Photocell controls its own optical systems
C250S226000
Reexamination Certificate
active
07414231
ABSTRACT:
A focus-state detecting device, to which a removable lens unit is mounted, that includes, for example, a focus-state detection unit that detects a focus-adjusted state; a first acquisition unit that acquires information on chromatic aberration; a second acquisition unit that acquires information on spectral characteristics of a subject; a correction unit that corrects information on the focus-adjusted state which has been detected by the focus-state detection unit; and a control unit that repeats operations.
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Bui-Pho Pascal M
Canon Kabushiki Kaisha
Le Que
Morgan & Finnegan , LLP
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