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:
Aug. 25, 1987
Filed:
Aug. 30, 1985
Zoran D Popovic, Mississauga, CA;
Robert A Sprague, Saratoga, CA (US);
G A Connell, Cupertino, CA (US);
Xerox Corporation, Stamford, CT (US);
Abstract
Monolithic microlenses and microlens arrays are manufactured on opto-electronic devices and other substrates by using sharp edge pedestals to confine the lateral flow of a molten lens material. The lens material wets the upper surfaces of the pedestals, but the pedestal edges confine the flow, so the lens material conforms to the shape of the pedestal surface and assumes a semi-arcuate profile due to its surface tension. Spin coating and photolithographic patterning may be employed to form the pedestals and to deposit the lens material thereon. The lens material is melted after being deposited, so the pedestals advantageously are stabilized to prevent them from deforming at the temperature of the molten lens material.