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:
Dec. 02, 1986
Filed:
Sep. 04, 1984
Noritaka Mochizuki, Yokohama, JP;
Setsuo Minami, Kawasaki, JP;
Yoshiya Matsui, Yokohama, JP;
Tadasu Taniguchi, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A projecting device comprising an array of axial element lens systems, wherein each element lens system includes a single bar lens having an axial length larger than the effective aperture and adapted to form an intermediate image of a pixel of the object plane and an erect image of a magnification of unity not vertically nor laterally inverted in such a manner that the light intensity on the image plane corresponding to said pixel is defined in the form of Gaussian distribution by the eclipse of the aperture. The element lens systems are arranged in a plane perpendicular to the optical axis so as to cause the light intensity distributions of said systems to mutually overlap in the peripheral areas thereof on the image plane, wherein each row of the systems in the array is displaced by a half pitch with respect to the neighboring row to constitute a staggered arrangement thereby achieving a uniform exposure distribution, integrated in time, in the scanning direction.