Patent ID: 11971534
Assignee: OLYMPUS CORPORATION
Field: Optics (Instruments)
Classification: CPC G  A | IPC A  G

Claim 19:
20. A manufacturing method of an optical transducer for use with an endoscope, wherein the optical transducer comprises:
an optical element;
an optical fiber optically coupled with the optical element; and
a ferrule comprising:
a semiconductor substrate including a first principal surface and a second principal surface opposite to the first principal surface, the semiconductor substrate having an insertion hole penetrating the semiconductor substrate from the first principal surface to the second principal surface, the optical fiber is disposed in the insertion hole, and
a glass substrate including a third principal surface and a fourth principal surface opposite to the third principal surface, and the third principal surface is bonded with the second principal surface, the optical element is mounted on the fourth principal surface,

the manufacturing method comprising:
forming a trench by etching on a stacked substrate in which the semiconductor substrate and the glass substrate are stacked, the trench being etched to have an opening in a side surface of the semiconductor substrate and the trench extending from the opening to the insertion hole,
mounting the optical element on the stacked substrate;
inserting the optical fiber into the insertion hold while observing a distal end surface of the optical fiber from the opening in the trench;
arranging uncured transparent resin in the insertion hole via the trench; and

curing the transparent resin of an ultraviolet curable type or an ultraviolet/thermal dual-curable type.