- 专利标题: LIGHT SOURCE DEVICE AND ELECTRONIC DEVICE USING THE SAME
-
申请号: US16089411申请日: 2017-02-28
-
公开(公告)号: US20190113672A1公开(公告)日: 2019-04-18
- 发明人: Toshinori SUGIYAMA , Koji HIRATA , Yasuhiko KUNII
- 申请人: MAXELL, LTD.
- 申请人地址: JP Otokuni-gun, Kyoto
- 专利权人: MAXELL, LTD.
- 当前专利权人: MAXELL, LTD.
- 当前专利权人地址: JP Otokuni-gun, Kyoto
- 优先权: JP2016-076024 20160405; JP2016-076283 20160406
- 国际申请: PCT/JP2017/007738 WO 20170228
- 主分类号: F21V8/00
- IPC分类号: F21V8/00
摘要:
Provided is a compact light source device that can be manufactured at a low cost and is suitable as an illumination light source for a display device of an electronic device such as an HUD or an ultra-compact projector. This light source device includes a solid-state light source, a collimating optical system that converts light having exited the solid-state light source into a substantially collimated light; and a light guide that allows the light having exited the collimating optical system to enter and allows this light to exit in a direction that differs from a direction of entry. The light source device further includes a polarization converting element that aligns polarization directions of the light exiting the light guide into one direction.