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:
Feb. 21, 1995
Filed:
May. 02, 1994
Keiji Ikemori, Yokohama, JP;
Takeshi Koyama, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A photographing apparatus having at least two modes, i.e., a first mode for setting and photographing a first photographing area of a photographing area photographed by a photo-taking optical system, and a second mode for setting and photographing a second photographing area smaller than the first photographing area. The apparatus has in succession from the object side a first lens unit and a second lens unit. The first lens unit comprises a positive lens of positive refractive power and a negative lens of negative refractive power, and the second lens unit comprises a positive lens. The spacing between the first lens unit and the second lens unit is varied during the changeover between the first mode and the second mode.