Photography – With exposure objective focusing means – focusing aid – or... – Plural focusing or rangefinding areas
Patent
1997-12-24
1999-11-30
Adams, Russell
Photography
With exposure objective focusing means, focusing aid, or...
Plural focusing or rangefinding areas
396121, G03B 310
Patent
active
059957670
ABSTRACT:
In automatic focus controlling of a camera, a method for controlling focusing areas of the camera is performed by setting a supervisory area in the center of a subject area picked up by an optical system; setting plural variable areas into an outer periphery of the supervisory area; and detecting the subject to perform the auto focusing while performing area variation to the variable areas, unless the subject is detected while constantly observing the supervisory area. An apparatus for executing the method is also provided, enhancing precision of the auto focusing to the main subject in the case of multiple subjects, continuously tracking the auto focusing of the subject that moves to the outer peripheral side of the center of the picture, and improving the tracking property of the center area when varying the picture areas.
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patent: 5353089 (1994-10-01), Yaji
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patent: 5418595 (1995-05-01), Iwasaki et al.
patent: 5455654 (1995-10-01), Suzuki
Lee Seoung-Eog
Park Jin-Soo
Yeo Myung-Keun
Adams Russell
LG Electronics Inc.
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