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:
Jan. 02, 2001
Filed:
Jan. 27, 1999
Hisashi Tsukagoshi, Tokyo, JP;
Norio Nakajima, Tokyo, JP;
Oki Data Corporation, Tokyo, JP;
Abstract
A circuit board holds a line of light emitting elements mounted thereon. The light emitting elements are at a predetermined height from the surface of the circuit board. A rod lens array longitudinally extends and forms images of the light emitting elements on a photoconductive body such that the images and the light emitting elements form pairs of conjugate points with respect to the rod lens array. A holder holds the rod lens array relative to the light emitting elements. Supporting members are mounted to the holder at locations along a length of the rod lens array and hold the rod lens array relative to the circuit board so that the images form a substantially straight line on the photoconductive body. Each of supporting member supports a part of the rod lens array relative to the circuit board. The supporting member has a first reference portion and a second reference portion, the first reference portion abutting a lower surface of the rod lens array and the second reference portion abutting the surface of the circuit board on which the light emitting elements are carried. The supporting member of different heights may be assembled to the holder along the length of the rod lens array so that any warp and/or distortion of the base is accommodated, thereby allowing images of light emitting elements are on a very straight line.