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:
Mar. 08, 2005
Filed:
Oct. 30, 2002
Sang-whoe Dho, Gyunggi-do, KR;
Sang-whoe Dho, Gyunggi-do, KR;
Samsung Electronics Co., Ltd., Kyungki-Do, KR;
Abstract
An optical coupling device, a method of producing the same, and an optical apparatus using the same. A light transmitting medium of the optical coupling device is made of optical fibers to transmit the light. Three RGB laser beams can be compounded by forming one output end after heating one end of the optical fibers. Input ends of the optical fibers each have a lens to collimate each laser beam. A collimating lens installed at an output end of the optical fibers changes the compounded laser beam to a parallel ray. The optical coupling device made of the optical fibers can be applied to an image reproducing apparatus such as a projector and a projection TV. Especially, when the optical coupling device using the optical fibers is applied to an image reproducing apparatus having a DMD (digital micro-mirror device), the size of the image reproducing apparatus can be reduced and the quality of the image reproduced is improved.