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Patent Searching and Data


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.

Inventors:
MASUDA TAKASHI (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:
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Assignee:
SONY SEMICONDUCTOR SOLUTIONS CORP (JP)
International Classes:
H01S5/042; G01S7/484; H01L21/822; H01L27/04; H03K17/00; H03K17/08; H03K17/082
Foreign References:
US20130320881A12013-12-05
JP2011044604A2011-03-03
US20100295476A12010-11-25
US20100244801A12010-09-30
JP2010074379A2010-04-02
US20070171947A12007-07-26
JP2005032798A2005-02-03
JP2003289172A2003-10-10
JP2003092453A2003-03-28
JPH05259544A1993-10-08
JPH02275684A1990-11-09
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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