发明申请
US20050174773A1 Lamp device, manufacturing method for same and projector having a lamp device
有权
灯装置，其制造方法以及具有灯装置的投影仪
- 专利标题： Lamp device, manufacturing method for same and projector having a lamp device
- 专利标题（中）： 灯装置，其制造方法以及具有灯装置的投影仪
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申请号： US11049679申请日： 2005-02-04
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公开(公告)号： US20050174773A1公开(公告)日： 2005-08-11
- 发明人: Shohei Fujisawa , Hiroyuki Kobayashi , Toru Terashima , Kazuhiro Tanaka , Takeshi Takezawa , Tomonobu Machida , Yuji Takado
- 申请人： Shohei Fujisawa , Hiroyuki Kobayashi , Toru Terashima , Kazuhiro Tanaka , Takeshi Takezawa , Tomonobu Machida , Yuji Takado
- 申请人地址： JP Tokyo
- 专利权人： SEIKO EPSON CORPORATION
- 当前专利权人： SEIKO EPSON CORPORATION
- 当前专利权人地址： JP Tokyo
- 优先权： JP2004-033698 20040210; JP2004-318176 20041101
- 主分类号： G03B21/14
- IPC分类号： G03B21/14 ; F21K2/00 ; F21S2/00 ; F21V19/00 ; F21Y101/00 ; G03B21/20 ; H01J61/86 ; H04N5/74
摘要：
A lamp device and a projector having the lamp device eliminated of light leaking in a direction opposite to a reflecting direction at a rear end of an encapsulation fixing an arc tube on a reflection mirror is simply and inexpensively provided. An arc tube and a reflection mirror are provided. The arc tube has encapsulations one of which is inserted in a cylinder of the reflection mirror thereby securing the encapsulation and the cylinder together by an adhesive. The bulb of the arc tube and the other encapsulation are positioned on a side close to a reflection surface of the reflection mirror. The encapsulation inserted in the cylinder and positioned on a side opposite to the reflection surface has an end at least at an end face of which is covered with the adhesive thereby providing light shield.