| 发明名称 |
LIGHT GUIDE, LIGHT GUIDING DEVICE AND IMAGE READING APPARATUS |
| 摘要 |
A light guide for use in an image reading apparatus. The light guide extends in a predetermined direction and includes: a reflecting surface being parallel to the predetermined direction; an emitting surface; and a prism configured to reflect light to the emitting surface. The prism includes a plurality of asperities formed on the reflecting surface. When viewed from a first direction orthogonal to the reflecting surface, at least one of the plurality of asperities includes a portion parallel to a predetermined curve or a predetermined straight line inclined from a second direction orthogonal to the predetermined direction. |
| 申请公布号 |
US2015181070(A1) |
申请公布日期 |
2015.06.25 |
| 申请号 |
US201414573318 |
申请日期 |
2014.12.17 |
| 申请人 |
Konica Minolta, Inc. |
发明人 |
TANAKA Satoko;TANAKA Masahiko |
| 分类号 |
H04N1/028;F21V8/00 |
主分类号 |
H04N1/028 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A light guide for use in an image reading apparatus, the light guide extending in a predetermined direction and comprising:
a reflecting surface being parallel to the predetermined direction; an emitting surface; and a prism configured to reflect light to the emitting surface, the prism including a plurality of asperities formed on the reflecting surface; wherein when viewed from a first direction orthogonal to the reflecting surface, at least one of the plurality of asperities includes a portion parallel to a predetermined curve or a predetermined straight line inclined from a second direction orthogonal to the predetermined direction. |
| 地址 |
Tokyo JP |
