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. 29, 2012
Filed:
May. 21, 2008
Taketoshi Tanaka, Kyoto, JP;
Kuniyoshi Okamoto, Kyoto, JP;
Hiroaki Ohta, Kyoto, JP;
Rohm Co., Ltd., Kyoto, JP;
Abstract
Provided is a laser light emitting device that has light sources of multiple wavelengths including an oscillation wavelength in a green region and the like, and that can be miniaturized. A metal wiringis formed on a supporting substrate. A green LDand a red LDare bonded to the metal wiring. Each of the green LDand the red LDis a laser diode element formed of a semiconductor having a layered structure. One of a positive electrode and a negative electrode of the element is bonded to the metal wiring, and the other electrode is connected to a lead wireor a lead wire. The green LDis formed of a GaN-based semiconductor laser diode having a nonpolar plane or a semipolar plane as a main surface for crystal growth. The red LDis formed of an AlInGaP-based semiconductor laser diode.