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:
May. 26, 1987
Filed:
Apr. 15, 1986
Kenji Imamura, Himeji, JP;
Ushio Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
An exposure device suitable for use in a copying machine includes a gutter-like mirror composed of an upper mirror and a lower mirror so that light projected from a light source onto the lower mirror is reflected to illuminate the surface of an original document in the pattern of a strip but light projected from the light source onto the upper mirror is reflected first onto the lower mirror and then reflected again by the lower mirror to illuminate the surface of the original document in the pattern of the strip. At least four small bulbs are arranged as the light source along the length of the gutter-like mirror and the envelopes of the small bulbs are frosted only at portions through which the internal filaments of the small bulbs face on the lower mirror.