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:
Jun. 24, 2003
Filed:
Jun. 15, 2000
Masumi Taninaka, Hachioji, JP;
Hiroaki Kikuchi, Hachioji, JP;
Mitsuhiko Ogihara, Hachioji, JP;
Hiroshi Hamano, Hachioji, JP;
Oki Data Corporation, Tokyo, JP;
Abstract
An array of light emitting elements, formed as regions of a second conductive type in a semiconductor layer of a first conductive type, includes at least one emission-altering element provided for the purpose of altering the amount of light emitted by an adjacent light-emitting element. The emission-altering element may be a trench, an opaque member, or a non-emitting region of the second conductive type. Light-emitting elements in the interior of the array can be made to emit the same amount of light as the light-emitting elements at the ends of the array by placing one emission-altering element between at least every second pair of mutually adjacent light-emitting elements. If the array is divided into blocks, the emission-altering elements can also provide electrical isolation between the blocks.