| 发明名称 |
SCANNING PROJECTION APPARATUS AND PORTABLE PROJECTION APPARATUS |
| 摘要 |
A scanning projection apparatus is provided with a first light source module which includes a laser light source to emit a laser beam and a mirror unit which can be oscillated. Further, a light deflection unit which performs a two-dimensional scanning with the laser beam emitted from the first light source module by the mirror unit, a light detection unit which detects a distance from the mirror unit to an image projection surface or a difference in distance in the image projection surface, and a control unit which controls an oscillation angle of the mirror unit based on distance information from the light detection unit are included. |
| 申请公布号 |
US2015109586(A1) |
申请公布日期 |
2015.04.23 |
| 申请号 |
US201414516823 |
申请日期 |
2014.10.17 |
| 申请人 |
MASUDA Makoto |
发明人 |
MASUDA Makoto |
| 分类号 |
H04N9/31;G02B26/08;G02B26/10 |
主分类号 |
H04N9/31 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A scanning projection apparatus comprising:
a light source module which includes a laser light source to emit a laser beam; a light deflection unit which includes an oscillating mirror unit and performs a two-dimensional scanning with the laser beam emitted from the light source module by the mirror unit to project a projection image onto an image projection surface; a light detection unit which detects a distance from the mirror unit to the image projection surface or a difference in distance in the image projection surface; and a control unit which controls an oscillation angle of the mirror unit based on distance information from the light detection unit. |
| 地址 |
Nara-shi JP |
