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:
Apr. 13, 2021
Filed:
Oct. 23, 2017
Applicant:
Brytn Co., Ltd., Seongnam-si, KR;
Inventor:
Hak Soon Lee, Seoul, KR;
Assignee:
BRYTN CO., LTD., Seongnam-si, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 27/48 (2006.01); G02B 27/09 (2006.01); G02B 26/08 (2006.01); G02B 3/00 (2006.01); G02B 27/28 (2006.01); G02B 27/64 (2006.01);
U.S. Cl.
CPC ...
G02B 27/48 (2013.01); G02B 3/0006 (2013.01); G02B 26/0875 (2013.01); G02B 27/0955 (2013.01); G02B 27/0961 (2013.01); G02B 27/283 (2013.01); G02B 27/64 (2013.01); G02B 27/0944 (2013.01);
Abstract
A speckle reduction device includes: a beam-shaping lens to shape at least one laser beam emitted from at least one light source, and to transmit the shaped laser beam to a panel; and a vibration unit to vibrate the beam-shaping lens in directions of two or more vibration axes such that a direction of the laser beam to be transmitted to the panel is changed to forms a plurality of different patterns.