US 11,986,154 B2
Optical transducer for endoscope, endoscope, and manufacturing method of optical transducer for endoscope
Kosuke Kawahara, Nagano (JP)
Assigned to OLYMPUS CORPORATION, Tokyo (JP)
Filed by OLYMPUS CORPORATION, Tokyo (JP)
Filed on Apr. 8, 2021, as Appl. No. 17/225,295.
Application 17/225,295 is a continuation of application No. PCT/JP2018/038500, filed on Oct. 16, 2018.
Prior Publication US 2021/0251471 A1, Aug. 19, 2021
Int. Cl. A61B 1/00 (2006.01); A61B 1/05 (2006.01); G02B 6/42 (2006.01); G02B 23/26 (2006.01)
CPC A61B 1/0017 (2013.01) [A61B 1/00013 (2013.01); A61B 1/05 (2013.01); G02B 6/424 (2013.01); G02B 23/26 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An optical transducer for use with an endoscope, the optical transducer comprising:
an optical device comprising:
a light emitting surface from which an optical signal is outputted, and
an electrode disposed on the light emitting surface; and
a ferrule comprising:
an opaque first holding member including a first principal surface, a second principal surface on an opposite side of the first principal surface, and a through-hole, and
a transparent second holding member including a third principal surface and a fourth principal surface on an opposite side of the third principal surface, the third principal surface of the transparent second holding member at least indirectly abutting on the second principal surface, the electrode of the optical device being bonded to a wiring on the fourth principal surface, the third principal surface having a blind hole having a bottom surface located between the third principal surface and the fourth principal surface, the through hole and the blind hole being aligned such that a first portion of an optical fiber is disposed in the through hole and a second portion of the optical fiber, including a distal end face of the optical fiber, is disposed in the blind hole.