| 发明名称 |
LENS COVER FOR A PROJECTOR |
| 摘要 |
The objective of the present invention is to provide a lens cover for a projector that prevents the entry of projection light into the user's field of view. This lens cover for a projector has: a first surface that faces a projection lens and into which projection light from the projection lens is irradiated; a second surface that emits the projection light that was irradiated into the first surface; and a refracting part that is provided on the first surface or the second surface or on both surfaces; that is made up of a plurality of recessed parts, and that refracts the projection light in one direction. The lens cover is formed from a material having transparency. |
| 申请公布号 |
US2016246051(A1) |
申请公布日期 |
2016.08.25 |
| 申请号 |
US201315033077 |
申请日期 |
2013.11.05 |
| 申请人 |
NEC Display Solutions, Ltd. |
发明人 |
Okamoto Takayuki;Moriya Yoshinobu;Kitano Yasuhiro |
| 分类号 |
G02B27/00;G02B19/00;G03B21/14 |
主分类号 |
G02B27/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A lens cover for a projector comprising:
a first surface that faces a projection lens and into which projection light from the projection lens is irradiated; a second surface that emits said projection light that was irradiated into said first surface; and a refracting part that is provided on said first surface or on said second surface or on both of said surfaces, that is made up of a plurality of recessed parts, and that refracts said projection light in one direction;
wherein said lens cover is formed by a material having transparency. |
| 地址 |
Tokyo JP |
