Title:
光学ユニット
Document Type and Number:
Japanese Patent JP5722882
Kind Code:
B2
Abstract:
Disclosed is an optical unit wherein a rotating reflector (26) rotates about a rotation axis in one direction, while reflecting light emitted from a light source. The rotating reflector (26) is provided with a reflecting surface such that the light reflected by the rotating reflector, while rotating, forms a desired light distribution pattern, said light having been emitted from the light source. The light source is composed of light emitting elements. The rotation axis is provided within a plane that includes an optical axis and the light source. The rotating reflector (26) is provided with, on the periphery of the rotation axis, a blade that functions as the reflecting surface.
Inventors:
Satoshi Yamamura
Application Number:
JP2012510572A
Publication Date:
May 27, 2015
Filing Date:
April 12, 2011
Export Citation:
Assignee:
Koito Manufacturing Co., Ltd.
International Classes:
F21S8/12; B60Q1/14; F21S8/10; F21V29/00; F21V29/50; F21V29/505; G01S13/931
Domestic Patent References:
| JP2009224039A | 2009-10-01 | |||
| JP2009018726A | 2009-01-29 | |||
| JPH0995006A | 1997-04-08 | |||
| JP2000010040A | 2000-01-14 | |||
| JPH11202236A | 1999-07-30 | |||
| JPS5822927A | 1983-02-10 | |||
| JPS5848084B2 | 1983-10-26 | |||
| JPH11295632A | 1999-10-29 | |||
| JPH10253770A | 1998-09-25 | |||
| JPH04223422A | 1992-08-13 | |||
| JP2004191863A | 2004-07-08 |
Foreign References:
| CH283612A | 1952-06-15 | |||
| FR1392029A | 1965-03-12 | |||
| FR2166276A1 | 1973-08-17 | |||
| GB533718A | 1941-02-19 | |||
| US2151733A | 1939-03-28 |
Attorney, Agent or Firm:
Sakaki Morishita
Yusuke Murata
Tomoyuki Miki
Yusuke Murata
Tomoyuki Miki