| 发明名称 | Scan projection device and scan controlling method thereof | ||
| 摘要 | A scan projection device and a controlling method are projected. The scan projection device comprises a light source module, a scanning module and a scan driving device. The light source module is for providing an image beam. The scanning module has a first direction scanning frequency and a second direction scanning frequency. The first direction scanning frequency is 2N+1 times of the second direction scanning frequency, wherein N is an integer. The scanning module is for projecting the image beam towards a particular direction and scanning a projection surface. The scan driving device controls the scanning module to scan the projection surface back and forth along a scan trace at the first direction scanning frequency and the second direction scanning frequency. | ||
| 申请公布号 | US8879131(B2) | 申请公布日期 | 2014.11.04 |
| 申请号 | US201313934616 | 申请日期 | 2013.07.03 |
| 申请人 | Lite-On Technology Corporation | 发明人 | Lin Wen-Lung |
| 分类号 | H04N1/04;H04N1/024 | 主分类号 | H04N1/04 |
| 代理机构 | Rabin & Berdo, P.C. | 代理人 | Rabin & Berdo, P.C. |
| 主权项 | 1. A controlling method of a scan projection device, wherein the scan projection device comprises a scanning module for reflecting and driving an image beam to scan on a projection surface, and the controlling method comprises: controlling the scanning module to drive the image beam to scan on the projection surface along a first direction at a first direction scanning frequency and along a second direction at a second direction scanning frequency, wherein the first direction scanning frequency is 2N+1 times of the second direction scanning frequency, and N is an integer; and controlling the scanning module to drive the image beam to scan on the projection surface back and forth along a scan trace. | ||
| 地址 | Taipei TW | ||