Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1995-04-20
1996-06-18
Adams, Russell E.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
354408, 358345, 2502012, G03B 1336
Patent
active
055283306
ABSTRACT:
A focus detecting apparatus comprises charge accumulation type photoelectric converting devices provided correspondingly to at least three focus detection areas set in a photographing image field and having a plurality of pairs of light receiving portions each for receiving a pair of light beams directed from each of the focus detection areas by a focus detecting optical system, an area setting device for setting a selection area including plural ones of the focus detection areas and a non-selection area including at least one of the focus detection areas in the photographing image field, a processing device for applying different processings to the outputs of the charge accumulation type photoelectric converting devices corresponding to the focus detection areas belonging to the selection area and the output of the charge accumulation type photoelectric converting device corresponding to the focus detection area belonging to the non-selection area, and a focus detecting device for detecting the focus adjusted state of a photo-taking lens on the basis of the outputs of the charge accumulation type photoelectric converting devices corresponding to the focus detection areas belonging to the selection area processed by the processing device.
REFERENCES:
patent: 4903065 (1990-02-01), Taniguchi et al.
patent: 4979045 (1990-12-01), Taniguchi et al.
patent: 5068682 (1991-11-01), Utagawa
patent: 5068737 (1991-11-01), Taniguchi et al.
patent: 5089842 (1992-02-01), Uchiyama et al.
patent: 5121152 (1992-06-01), Wagner
patent: 5128705 (1992-07-01), Someya et al.
patent: 5136325 (1992-08-01), Uchiyama et al.
patent: 5218395 (1993-06-01), Taniguchi et al.
Adams Russell E.
Nikon Corporation
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