Granted Patent B2

US 12,468,101 · App. 18/007,958 · Granted Nov 11, 2025

Inventors: Takuya Ishida (Osaka, JP); Tetsuya Nakanishi (Osaka, JP); Hong Chuyen Nguyen (Osaka, JP)

Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.

G02B6/4261G02B6/4278

Abstract

Claims (23)

1 . An optical device comprising:

a host device having a first housing, a first optical connector arranged inside the first housing, and an electrical connector arranged inside the first housing; and

a light-emitting device having a second optical connector optically connected to the first optical connector, an electrical plug into which the electrical connector is inserted for electrical connection there-between, and a second housing accommodating the second optical connector and the electrical plug and inserted into the first housing,

wherein:

the second housing has a latch structure latched onto the first housing when inserted into the first housing,

the second optical connector has a guide hole separate and distinct from the electrical plug,

the first optical connector has a guide pin that is separate and distinct from the electrical connector and is inserted into the guide hole,

the first optical connector has a first optical fiber and a first ferrule holding the first optical fiber,

the second optical connector has a second optical fiber and a second ferrule holding the second optical fiber, and

an area of a cross section of an opening of the guide hole perpendicular to a direction in which an optical axis of the second optical fiber extends is 0.5% or more and 15% or less of an area of a cross section of the light-emitting device perpendicular to the direction in which the optical axis of the second optical fiber extends and 5% or more and 60% or less of an area of an end face of the second ferrule where the second optical fiber is exposed.

2 . The optical device according to claim 1 , wherein the second optical connector has an uneven portion formed on a surface of the second optical connector and into which the first optical connector is inserted.

3 . The optical device according to claim 1 , wherein the latch structure further has a mechanism where a latch is released when pulled out.

4 . An optical device comprising:

a host device having a first housing, a first optical connector arranged inside the first housing, and an electrical connector arranged inside the first housing; and

a light-emitting device having a second optical connector optically connected to the first optical connector, an electrical plug into which the electrical connector is inserted for electrical connection there-between, and a second housing accommodating the second optical connector and the electrical plug and inserted into the first housing,

wherein:

the second housing has a latch structure latched onto the first housing when inserted into the first housing,

the first optical connector has a guide hole separate and distinct from the electrical plug,

the second optical connector has a guide pin that is separate and distinct from the electrical connector and is inserted into the guide hole,

the first optical connector has a first optical fiber and a first ferrule holding the first optical fiber,

the second optical connector has a second optical fiber and a second ferrule holding the second optical fiber, and

an area of a cross section of an opening of the guide hole perpendicular to a direction in which an optical axis of the first optical fiber extends is 0.5% or more and 15% or less of an area of a cross section of the first housing perpendicular to the direction in which the optical axis of the first optical fiber extends and 5% or more and 60% or less of an area of an end face of the first ferrule where the first optical fiber is exposed.

5 . The optical device according to claim 4 , wherein the latch structure further has a mechanism where a latch is released when pulled out.

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (19)