Digital camera utilizing illumination from a flash light for...

Details Digital camera utilizing illumination from a flash light for... Digital camera utilizing illumination from a flash light for...

2006-07-04

2006-07-04

Ometz, David (Department: 2615)

Television

Camera, system and detail

Optics

C348S371000, C348S354000, C396S089000

Reexamination Certificate

active

07071986

ABSTRACT:
Flash emission is required when image data have a low luminance value and when it is determined that flash emission is not prohibited, the built-in flash is used for autofocus (AF). An AF evaluation value is obtained under the flash emission, and the lens is driven based on this value. This operation is repeated until it is determined that the lens is focused, and accurate AF is executed even in dark conditions.

REFERENCES:
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patent: 6271883 (2001-08-01), Iijima et al.
patent: 6498900 (2002-12-01), Nakata et al.
patent: 6700614 (2004-03-01), Hata
patent: 6-90397 (1994-03-01), None
patent: 6-225206 (1994-08-01), None
patent: 08-334682 (1996-12-01), None
patent: 08-334682 (1996-12-01), None
patent: 10-197784 (1998-07-01), None
Japanese “Notification of Reason(s) for Refusal” dated Apr. 8, 2003 for counterpart Japanese Patent Application No. 2000-173575, along with an English-language translation thereof.

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