Abstract: A capillary-type lens array having an inorganic glass around a graded index lens, in which a plurality of the graded index lenses and the inorganic glass are physically fused.
Type:
Grant
Filed:
May 16, 2018
Date of Patent:
April 26, 2022
Assignee:
NAKAHARA OPTO-ELECTRONICS LABORATORIES, INC.
Abstract: A perforated quartz glass tube includes a jacket tube containing a quartz glass material, a plurality of cylindrical glass tubes which are inserted into a pore region of the jacket tube along an axial direction of the jacket tube, and contain a quartz glass material having a softening point higher than a softening point of the jacket tube, and a gap member which is inserted into a gap between the cylindrical glass tubes and a gap between the jacket tube and the cylindrical glass tube, and contains a quartz glass material having a softening point lower than a softening point of the cylindrical glass tube.
Type:
Grant
Filed:
April 13, 2016
Date of Patent:
June 1, 2021
Assignee:
NAKAHARA OPTO-ELECTRONICS LABORATORIES, INC.