Title:
LIGHT SOURCE DEVICE AND ELECTRONIC APPARATUS
Document Type and Number:
WIPO Patent Application WO/2020/162129
Kind Code:
A1
Abstract:
The present invention comprises: a first resistive element (101) that is connected to a prescribed potential; a light emitting element (12) that is connected in series to the first resistive element (101) and that emits a prescribed volume of light as a result of being supplied with a prescribed current; a second resistive element (102) that is connected to a prescribed potential; and a first current source (104) that is connected in series to the second resistive element and that supplies a current formed by adding the current of an overcurrent component to a prescribed current. The following are extracted: a first voltage of a first connection section where the first resistive element and the light emitting element are connected; and a second voltage of a second connection section where the second resistive element and the first current source are connected.
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Inventors:
MASUDA TAKASHI (JP)
TABATA MITSUSHI (JP)
OKAMOTO KOICHI (JP)
OBA YASUO (JP)
TABATA MITSUSHI (JP)
OKAMOTO KOICHI (JP)
OBA YASUO (JP)
Application Number:
PCT/JP2020/001169
Publication Date:
August 13, 2020
Filing Date:
January 16, 2020
Export Citation:
Assignee:
SONY SEMICONDUCTOR SOLUTIONS CORP (JP)
International Classes:
H01S5/042; G01S7/484; H01L21/822; H01L27/04; H03K17/00; H03K17/08; H03K17/082
Foreign References:
US20130320881A1 | 2013-12-05 | |||
JP2011044604A | 2011-03-03 | |||
US20100295476A1 | 2010-11-25 | |||
US20100244801A1 | 2010-09-30 | |||
JP2010074379A | 2010-04-02 | |||
US20070171947A1 | 2007-07-26 | |||
JP2005032798A | 2005-02-03 | |||
JP2003289172A | 2003-10-10 | |||
JP2003092453A | 2003-03-28 | |||
JPH05259544A | 1993-10-08 | |||
JPH02275684A | 1990-11-09 |
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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