Title:
WAVELENGTH CONVERSION DEVICE, LIGHTING OPTICAL SYSTEM, AND ELECTRONIC DEVICE USING SAME
Document Type and Number:
WIPO Patent Application WO/2014/109333
Kind Code:
A1
Abstract:
This lighting optical system has: an array light source (20) that emits blue light; a phosphor wheel (50) that includes a reflective region (52) that reflects blue light and a first phosphor region (54) that emits red light and a second phosphor region (56) that emits green light on the basis of the blue light; a dichroic mirror (30) through which the blue light from the array light source (20) passes and which reflects the red light and green light from the phosphor wheel (50); a reflective mirror (40) that reflects the blue light from the phosphor wheel (50); front group lenses (L1, L2) that have an optical axis (C1) and collect the blue light from the array light source (20); and rear group lenses (L3, L4) that have an optical axis (C2) shifted from the optical axis (C1) and collect blue light from the front group lenses (L1, L2) on the surface of the phosphor wheel (50).
Inventors:
KOGA RITSUO (JP)
Application Number:
PCT/JP2014/050155
Publication Date:
July 17, 2014
Filing Date:
January 08, 2014
Export Citation:
Assignee:
ZERO LAB CO LTD (JP)
International Classes:
G03B21/14; A61B1/06; F21S2/00; F21V9/16; F21V9/40; H04N5/74; F21Y101/02
Domestic Patent References:
| WO2011118345A1 | 2011-09-29 |
Foreign References:
| JP2012181260A | 2012-09-20 | |||
| JP2012133337A | 2012-07-12 | |||
| JP2012013897A | 2012-01-19 | |||
| JP2010237443A | 2010-10-21 | |||
| JP2012048847A | 2012-03-08 | |||
| JP2012212129A | 2012-11-01 |
Attorney, Agent or Firm:
KATAYOSE KYOZO (JP)
Kyozo Katayose (JP)
Kyozo Katayose (JP)
Download PDF: