Photography – With exposure objective focusing means – focusing aid – or... – Auto/manual mode selection
Reexamination Certificate
2005-08-17
2008-09-23
Koval, Melissa Jan (Department: 2862)
Photography
With exposure objective focusing means, focusing aid, or...
Auto/manual mode selection
C396S082000, C359S698000, C359S823000, C318S446000
Reexamination Certificate
active
07428377
ABSTRACT:
A focusing drive apparatus includes a determination device that is configured to determine whether a present focusing condition is an AF-able condition or an AF-unable condition. In the AF-able condition, the focusing lens group can be moved to the in-focus position by the AF device. In the AF-unable condition, the focusing lens group cannot be moved to the in-focus position by the AF device. The apparatus also includes a change control device that is configured to set a motive power transmission mechanism in the engaged state to enable the focusing lens group to be moved to the in-focus position by the AF device when the determination device determines that the present focusing condition is the AF-able condition, and to set the motive power transmission mechanism in the disengaged state when the determination device determines that the present focusing condition is the AF-unable condition.
REFERENCES:
patent: 4319820 (1982-03-01), Ostrowski et al.
patent: 4845521 (1989-07-01), Akashi
patent: 4933701 (1990-06-01), Matsuyama
patent: 5231441 (1993-07-01), Hata
patent: 5918078 (1999-06-01), Imura et al.
patent: 6307342 (2001-10-01), Idemura
patent: 6853502 (2005-02-01), Sasaki
patent: 6992720 (2006-01-01), Kaneda
patent: 2003-241077 (2003-08-01), None
patent: 2003-337278 (2003-11-01), None
Birch & Stewart Kolasch & Birch, LLP
Fujinon Corporation
Koval Melissa Jan
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