Title:
光源装置および投光装置
Document Type and Number:
Japanese Patent JP7029608
Kind Code:
B2
Abstract:
Provided is a light source device capable of controlling a light deflector appropriately and highly accurately in such a manner that the scanning speed of a laser light is relatively slower in a predetermined scanning range, even when a high-weight scanning means, such as a high-reflectivity mirror, is used as scanning means for scanning light with respect to a wavelength conversion member. Also provided is a light projection device equipped with this light source device. The light source device (2) comprises: a laser light source emitting a laser light; a wavelength conversion member (15) converting the wavelength of the laser light into another wavelength while diffusing the wavelength-converted laser light; and a light deflector (14) causing the laser light to perform a scan over the surface of incidence of the wavelength conversion member (15) at least in one dimension. The light deflector (14) comprises a coil, and a magnetic circuit applying a magnetic field to the coil. The magnetic circuit is configured such that the relative intensity of a magnetic field applied to a coil decreases as a movable part approaches a predetermined moving position.
Inventors:
Kazuyuki Matsumura
Junya Aso
Hirotaka Ueno
Murakami
Toshihiro Koga
Junya Aso
Hirotaka Ueno
Murakami
Toshihiro Koga
Application Number:
JP2019504481A
Publication Date:
March 04, 2022
Filing Date:
February 26, 2018
Export Citation:
Assignee:
Panasonic IP Management Co., Ltd.
International Classes:
F21S2/00; F21S41/16; F21S41/176; F21S41/39; F21S41/675; F21V9/35; F21V13/14; F21V14/04; G02B26/08
Domestic Patent References:
| JP2015184591A | ||||
| JP2119564A | ||||
| JP2009109928A |
Attorney, Agent or Firm:
Kenji Kamata
Koichi Nomura
Koichi Nomura