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. 03, 2005
Filed:
Jul. 12, 2000
Kaiyan Zhang, Belle Meade, NJ (US);
Jiamin Zhang, Plainsboro, NJ (US);
Chuni L. Ghosh, West Windsor, NJ (US);
Laurence S. Watkins, Pennington, NJ (US);
Kaiyan Zhang, Belle Meade, NJ (US);
Jiamin Zhang, Plainsboro, NJ (US);
Chuni L. Ghosh, West Windsor, NJ (US);
Laurence S. Watkins, Pennington, NJ (US);
Princeton Optronics, Inc., Mercerville, NJ (US);
Abstract
A vertical cavity surface emitting laser (VCSEL) device with improved power and beam characteristics. The VCSEL device contains one VCSEL or an array of VCSELs. Each VCSEL has a corresponding integrated microlens, and a heat sink is attached to the device side of the VCSEL device. The heat sink allows improved heat dissipation, and therefore provides improved power characteristics of the VCSEL device output laser beam. The microlens or microlens array allows easier and more compact focussing of the VCSEL device output laser beam. The VCSEL device can be used in a variety of optical systems, and its improved power and focusing characteristics provide a compact, low power, low cost laser system.