Radiant energy – Ionic separation or analysis – Static field-type ion path-bending selecting means
Patent
1987-08-10
1989-08-22
Perkey, W. B.
Radiant energy
Ionic separation or analysis
Static field-type ion path-bending selecting means
354408, 250201, 250204, G03B 300
Patent
active
048600458
ABSTRACT:
An automatic focusing device for a camera is disclosed.
The automatic focusing device has focus detection means for detecting defocus amount of the image, object movement detection means for detecting movement of the object based on defocus data detected by the focus detection means and correction means for correcting the detected defocus amount according to the detected movement of the object.
The objective lens of the camera is driven according to the corrected defocus amount for focus adjustment.
REFERENCES:
patent: 4218119 (1980-08-01), Schickedanz
patent: 4387975 (1983-06-01), Araki
patent: 4434362 (1984-02-01), Wilwerding
patent: 4445761 (1984-05-01), Ishikawa et al.
patent: 4492448 (1985-01-01), Ishikawa et al.
patent: 4503325 (1985-03-01), Araki
patent: 4506150 (1985-03-01), Ogasawara
patent: 4647979 (1987-03-01), Urata
Hamada Masataka
Ishida Tokuji
Minolta Camera Kabushiki Kaisha
Perkey W. B.
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