LASER LIGHT SOURCE DEVICE AND PRODUCTION METHOD THEREFOR

WIPO Patent Application WO/2019/087290

A1

The objective of the invention is to provide a technique for achieving a high in-plane mounting density of laser light source elements, and allow the position of lenses corresponding to each laser light source element to be adjusted with high accuracy. This laser light source device 1 comprises: a base 30; a plurality of semiconductor laser elements 101 to 104 arrayed on the upper surface of the base 30 at grid points comprising points of intersection between an x-axis group and a y-axis group, respectively arrayed along the x-axis and the y-axis, which is an intersecting direction with respect to the x-axis; a plurality of lenses 41 to 44 for turning laser lights delivered by the plurality of semiconductor laser elements 101 to 104 into parallel beams; a spacer 20 disposed on the upper surface of the base 30; and an adhesive 50 fixing the plurality of lenses 41 to 44 onto the spacer 20. For each of the lenses 41 to 44, the spacer 20 has a circular ring-shaped supporting surface 20b, and a wall section 20c. The wall section 20c has an undercut 20d formed along a direction linking the diagonal points of the grid points.

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FUTAMI MITSUAKI (JP)

PCT/JP2017/039302

May 09, 2019

October 31, 2017

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MITSUBISHI ELECTRIC CORP (JP)

H01S5/022

JP2017138566A	2017-08-10
JP2017168233A	2017-09-21
JP2005099116A	2005-04-14
JP2009038652A	2009-02-19
US20160126704A1	2016-05-05
US20140029637A1	2014-01-30
JP5453927B2	2014-03-26
JPS5835606B2	1983-08-03

See also references of EP 3706261A4

YOSHITAKE Hidetoshi et al. (JP)

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