| US 7,489,714 B2 | ||
| Speckle reduction laser and laser display apparatus having the same | ||
| Yong-hwa Park, Yongin-si (Korea, Republic of); Kyoung-ho Ha, Seoul (Korea, Republic of); Jun-o Kim, Yongin-si (Korea, Republic of); and Yong-kweun Mun, Yongin-si (Korea, Republic of) | ||
| Assigned to Samsung Electronics Co., Ltd., Suwon-si (Korea, Republic of) | ||
| Filed on Aug. 22, 2007, as Appl. No. 11/843,211. | ||
| Claims priority of application No. 10-2007-0008585 (KR), filed on Jan. 26, 2007. | ||
| Prior Publication US 2008/0180776 A1, Jul. 31, 2008 | ||
| Int. Cl. H01S 3/123 (2006.01); H01S 3/10 (2006.01); H01S 3/08 (2006.01) | ||
| U.S. Cl. 372—20 [372/15; 372/99; 372/107] | 17 Claims |
| 1. A speckle reduction laser comprising:
a semiconductor unit that comprises an active layer and emits laser light through a first side surface thereof by resonating
light generated from the active layer; and
a vibration mirror unit, disposed at a second side surface of the semiconductor unit, and comprising a mirror,
wherein a resonance of the laser light is generated between the first side surface of the semiconductor unit and the mirror,
and a resonance mode of the laser light is changed according to a vibration of the mirror.
|