Patent
1991-04-15
1992-08-18
Perkey, W. B.
G03B 1336
Patent
active
051403595
ABSTRACT:
An auto focusing device for foreseeing-calculating lens driving data for making a lens focus on an object after a predetermined time on the basis of the past focus adjusting operation data and the latest focus detection data. A plurality of distance measuring points are read to effect distance measurements at a time. Data suitable for foreseeing calculation is found from the respective distance measuring points, and the data suitable for foreseeing calculation is specified as the latest focus detection data used for the foreseeing calculation.
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Akashi Akira
Fukahori Hidehiko
Higashihara Masaki
Itoh Kenji
Kadohara Terutake
Canon Kabushiki Kaisha
Perkey W. B.
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