The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 28, 1990
Filed:
Jan. 23, 1989
Tokuji Ishida, Osaka, JP;
Masataka Hamada, Osaka, JP;
Toshio Norita, Osaka, JP;
Masayuki Ueyama, Osaka, JP;
Katsumi Kozakai, Osaka, JP;
Hiroshi Ootsuka, Osaka, JP;
Hideo Kajita, Osaka, JP;
Kenji Ishibashi, Osaka, JP;
Minolta Camera Kabushiki Kaisha, Osaka, JP;
Abstract
An improved focus detecting apparatus comprises a photographic lens, focus adjusting apparatus for driving the photographic lens which has been placed on an initial focusing position to an in-focus position, an auxiliary light emitting apparatus for emitting an auxiliary light and a switch for selecting whether the focus adjustment should be carried out with the auxiliary light emitted or the focus adjustment should be carried out without the auxiliary light. The initial focusing position of the photographic lens can be switched dependent on whether the auxiliary light is emitted or not.