Title:
LIGHT SOURCE DEVICE AND LIGHT PROJECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/173802
Kind Code:
A1
Abstract:
Provided is a light source device wherein a scanning means can be controlled appropriately and highly accurately, even when a heavy scanning means such as a highly-reflective mirror is used as the scanning means for causing light to scan a wavelength conversion member. Also provided is a light projection device equipped with this light source device. The invention comprises a laser light source, a wavelength conversion member, a light deflector, and a drive unit. The laser light source emits laser light having a first wavelength. The wavelength conversion member has an entry surface on an optical path of the laser light, converts the first wavelength into a second wavelength that is different from the first wavelength, and causes the laser light to diffuse, generating diffuse light having the second wavelength. The light deflector causes the laser light to scan over the entry surface. The drive unit supplies a driving signal to the light deflector. The drive unit sets the driving waveform for the driving signal on the basis of the movement characteristics of a movable part of the light deflector in such a manner that the movable part achieves a predetermined moving operation.
Inventors:
UENO HIROTAKA
ASO JUNYA
MATSUMURA KAZUYUKI
MURAKAMI KIMIHIRO
KOGA TOSHIHIRO
ASO JUNYA
MATSUMURA KAZUYUKI
MURAKAMI KIMIHIRO
KOGA TOSHIHIRO
Application Number:
PCT/JP2018/009209
Publication Date:
September 27, 2018
Filing Date:
March 09, 2018
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H05B37/02; F21S2/00; F21V14/04; G02B26/10; F21Y115/30
Domestic Patent References:
| WO2016157765A1 | 2016-10-06 |
Foreign References:
| JP2015153645A | 2015-08-24 | |||
| JP2009223246A | 2009-10-01 | |||
| JP2012078515A | 2012-04-19 | |||
| JP2014029858A | 2014-02-13 | |||
| JP2015184591A | 2015-10-22 |
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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