Title:
ILLUMINATION DEVICE AND RANGING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/219912
Kind Code:
A1
Abstract:
The present invention reduces the influence of a series resonance circuit formed when a switching unit is turned off, for example. This illumination device includes: a light emitting element having a first light emitting unit group including a plurality of first light emitting units, and a second light emitting unit group including a plurality of second light emitting units, a first electrode of the first light emitting unit group and a second electrode of the second light emitting unit group being shared; a first switching unit connected between a power source and a third electrode of the first light emitting unit group; a second switching unit connected between the power source and a fourth electrode of the second light emitting unit group; and at least one capacitor connected to a node between the power source and the first switching unit/the second switching unit.
Inventors:
YAMADA KYOHEI (JP)
KIMURA MOTOI (JP)
MORI KOUJI (JP)
OIWA TATSUYA (JP)
KOBAYASHI TAKASHI (JP)
KIMURA MOTOI (JP)
MORI KOUJI (JP)
OIWA TATSUYA (JP)
KOBAYASHI TAKASHI (JP)
Application Number:
PCT/JP2022/005853
Publication Date:
October 20, 2022
Filing Date:
February 15, 2022
Export Citation:
Assignee:
SONY SEMICONDUCTOR SOLUTIONS CORP (JP)
International Classes:
G01C3/06; G01S7/481; G01S7/484; G01S17/894
Foreign References:
| JP2018004372A | 2018-01-11 | |||
| JPH07229966A | 1995-08-29 | |||
| JP2018511785A | 2018-04-26 | |||
| JP2007214564A | 2007-08-23 | |||
| JP2014209078A | 2014-11-06 | |||
| US20190049097A1 | 2019-02-14 |
Attorney, Agent or Firm:
SUGIURA PATENT OFFICE et al. (JP)
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