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:
Apr. 18, 1978
Filed:
Jul. 15, 1976
Hiroshi Ikeda, Aichi, JA;
Minolta Camera Kabushiki Kaisha, Osaka, JA;
Abstract
A slit-scanning type optical copying apparatus, wherein successive increments of the surface of an original are scanned by reciprocating an original-carrying support or an original-image scanning mirror, so that an original image is focused on a photosensitive member moving or turning at a given speed or at a given R.P.M. in a given direction, through a projecting optical system including an objective lens. In this optical copying apparatus, the projecting optical system comprises: a single objective lens; a roof reflecting member having adjoining reflecting surfaces making a right angle therebetween, the aforesaid reflecting member being positioned in the rear of the objective lens; a single half-mirror positioned in the optical path in the front of the objective lens and oriented to direct projecting beams from the original onto the lens and to direct projecting beams from the lens onto the photosensitive member, respectively; and means for turning the reflecting member through an angle of 90.degree. in response to the advancing and returning movements of the original carrying support or original-image scanning mirror.