Title:
LIGHT SOURCE DEVICE AND LIGHT PROJECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/150814
Kind Code:
A1
Abstract:
Provided are a light source device and a light projection device comprising the same, which are capable of scanning an incident surface of a wavelength conversion member with a beam spot narrowed to be a small beam spot, and making a light amount distribution substantially uniform over the entire scanning range. A light source device (2) comprises: a laser light source; a wavelength conversion member (15) for converting a wavelength of laser light into another wavelength and diffusing the wavelength-converted laser light; a light deflector (14) for scanning with the laser light the incident surface of the wavelength conversion member (15) at least one-dimensionally; and an optical element (19) disposed in the optical path of the laser light between the laser light source and the wavelength conversion member (15). The optical element (19) comprises a plurality of lens units in a region to be irradiated with the laser light. Each lens unit provides the laser light, which has entered each lens unit, with an optical action such that the laser light is superimposed on substantially the same spot in the vicinity of the incident surface of the wavelength conversion member (15) while being converged.
More Like This:
| JP2020205397 | LIGHT SOURCE DEVICE |
| JP3529387 | Light inclination optical structure |
| JP2013502036 | Light emitting diode lighting |
Inventors:
ASO JUNYA
FUKAKUSA MASAHARU
MURAKAMI KIMIHIRO
MATSUMURA KAZUYUKI
UENO HIROTAKA
KOGA TOSHIHIRO
FUKAKUSA MASAHARU
MURAKAMI KIMIHIRO
MATSUMURA KAZUYUKI
UENO HIROTAKA
KOGA TOSHIHIRO
Application Number:
PCT/JP2018/001857
Publication Date:
August 23, 2018
Filing Date:
January 23, 2018
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
F21S2/00; B60Q1/076; B60Q1/14; F21S41/00; F21S43/00; F21S45/00; F21V5/00; F21V5/04; F21V7/00; F21V7/04; F21V7/22; F21V9/00; F21V14/04; G02B26/08; G02B26/10; F21W102/00; F21W103/00; F21W104/00; F21W105/00; F21Y115/30
Domestic Patent References:
| WO2016204139A1 | 2016-12-22 |
Foreign References:
| JP2014017094A | 2014-01-30 | |||
| JP2016071234A | 2016-05-09 |
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
Download PDF: