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:
Nov. 19, 1996
Filed:
Nov. 22, 1993
Gregory J Kovacs, Sunnyvale, CA (US);
R Donald Yingling, Jr deceased, late of San Francisco, CA (US);
Tibor Fisli, Los Altos Hills, CA (US);
Xerox Corporation, Stamford, CT (US);
Abstract
A nonmonolithic, multiple wavelength laser array having closely spaced lasing elements which are accurately spaced both in a plane perpendicular to the optical axes of the laser beams and along the optical axes. The laser array includes a plurality of lasing elements mounted on a high thermal conductivity spacer. The spacer has a front surface angled relative to the optical axes of the lasing elements, and parallel mounting surfaces. The mounting surfaces and front surfaces join to form front edges. The laser elements mount such that the front facet of each lasing element is aligned with an associated front edge. Beneficially, either the spacer is electrically conductive, or the spacer is coated with a layer of conductive material. The laser array can be used in a printer to offset the laser elements to correct for the wavelength dependency of the printer's optical system.