| 发明名称 | Camera module and optical touch screen using the same | ||
| 摘要 | The present invention relates to a camera module and an optical touch screen using the same, the camera module including an infrared emitting diode for emitting infrared ray, a first infrared pass filter passing only the infrared ray reflected by a retro reflector, an object lens condensing the infrared ray that has passed the first infrared pass filter, a second infrared pass filter passing an infrared ray of a particular wave band among the infrared ray condensed by the object lens, and a linear sensor for detecting an area touched by incidence of infrared ray that has passed the second infrared pass filter. | ||
| 申请公布号 | US8957877(B2) | 申请公布日期 | 2015.02.17 |
| 申请号 | US201113808045 | 申请日期 | 2011.07.06 |
| 申请人 | LG Innotek Co., Ltd. | 发明人 | Hwang Woong |
| 分类号 | G06F3/042;H04N5/225;H04N5/33 | 主分类号 | G06F3/042 |
| 代理机构 | Birch, Stewart, Kolasch & Birch, LLP | 代理人 | Birch, Stewart, Kolasch & Birch, LLP |
| 主权项 | 1. A camera module, the module comprising: an infrared emitting diode for emitting infrared ray; a first infrared pass filter passing only the infrared ray reflected by a retro reflector; an object lens condensing the infrared ray that has passed the first infrared pass filter; a second infrared pass filter passing an infrared ray of a particular wave band among the infrared ray condensed by the object lens; and a linear sensor for detecting an area touched by incidence of infrared ray that has passed the second infrared pass filter. | ||
| 地址 | Seoul KR | ||