Title:
LIGHT SOURCE APPARATUS, ADJUSTMENT METHOD, AND SENSING MODULE
Document Type and Number:
WIPO Patent Application WO/2020/044818
Kind Code:
A1
Abstract:
In a configuration for driving, on the basis of a common source voltage, a plurality of light-emitting elements realized by vertical resonator surface emission laser, reduction in power consumption is achieved while enabling proper emission of light by all of the light-emitting elements. The light source apparatus according to the present invention is provided with: a light emission part which has arranged therein a plurality of light-emitting elements realized by a vertical resonator surface emission laser; and a voltage adjustment part that adjusts, according to the forward voltage of the light-emitting elements, a source voltage that is commonly used to drive the plurality of light-emitting elements in the light emission part. With this configuration, it is possible to properly adjust the source voltage according to the forward voltage of the light-emitting elements, so as to raise the source voltage when the forward voltage of the light-emitting elements is high and to lower the source voltage when the forward voltage of the light-emitting elements is low.
Inventors:
TSUCHIYAMA TOMONORI (JP)
Application Number:
PCT/JP2019/027702
Publication Date:
March 05, 2020
Filing Date:
July 12, 2019
Export Citation:
Assignee:
SONY SEMICONDUCTOR SOLUTIONS CORP (JP)
International Classes:
H01S5/062; G01S7/481; G01S17/89; G03B15/02; G03B15/03; G03B15/05; H01S5/42
Domestic Patent References:
| WO2010150444A1 | 2010-12-29 | |||
| WO2017154128A1 | 2017-09-14 |
Foreign References:
| JP2016146417A | 2016-08-12 | |||
| JP2008130523A | 2008-06-05 |
Attorney, Agent or Firm:
IWATA, Masanobu et al. (JP)
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