Photography – With exposure objective focusing means – focusing aid – or... – Temperature compensating
Patent
1998-09-24
1999-11-30
Perkey, W. B.
Photography
With exposure objective focusing means, focusing aid, or...
Temperature compensating
396114, G03B 1336
Patent
active
059957662
ABSTRACT:
A focus detecting device which performs a temperature compensating action on the basis of an output of a temperature sensor includes a focus detecting sensor, a reimaging lens which reimages a light flux to be used for focus detection, a support member on which the focus detecting sensor and the reimaging lens are mounted, and the temperature sensor disposed in the vicinity of a mounting surface of the support member on which the reimaging lens is mounted.
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patent: 5412448 (1995-05-01), Kunishige
patent: 5771413 (1998-06-01), Suda et al.
patent: 5839001 (1998-11-01), Ohtaka et al.
patent: 5864721 (1999-01-01), Suda et al.
patent: 5895129 (1999-04-01), Ohta
Canon Kabushiki Kaisha
Perkey W. B.
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