Light isolator member and light isolator

Patent metadata

Field	Value
Publication number	US-11256116-B2
Application number	US-202016987439-A
Country	US
Kind code	B2
Filing date	Aug 7, 2020
Priority date	Aug 9, 2019
Publication date	Feb 22, 2022
Grant date	Feb 22, 2022

Abstract

A light isolator member of an embodiment of the present invention is configured to be joined to another light isolator member to serve as a part of a light isolator, the light isolator member including: a lens surface disposed in a first surface; a transmission surface disposed at a position corresponding to the lens surface in a second surface on a side opposite to the first surface; and a fitting part disposed in the second surface, the fitting part being configured for fitting to the other light isolator member.

First claim

What is claimed is:

1. A light isolator member configured to be joined to another light isolator member to serve as a part of a light isolator, the light isolator member comprising:
a lens surface disposed in a first surface;
a transmission surface disposed at a position corresponding to the lens surface in a second surface on a side opposite to the first surface; and
a fitting part disposed in the second surface, the fitting part being configured for fitting to the other light isolator member.

2. The light isolator member according to claim 1 , further comprising a positioning part disposed in the first surface and configured to position an optical transmission member with respect to the lens surface.

3. The light isolator member according to claim 2 , wherein the lens surface, the transmission surface, the fitting part and the positioning part are integrated with one another.

4. The light isolator member according to claim 1 , further comprising a fixing part disposed in the second surface and configured to fix an optical device at the transmission surface.

5. The light isolator member according to claim 1 , wherein:
a plurality of the fitting parts are provided; and
the plurality of the fitting parts include a first fitting part and a second fitting part, the first fitting part being a recess, the second fitting part being a protrusion.

6. The light isolator member according to claim 5 , wherein the first fitting part and the second fitting part have shapes that are complementary to each other.

7. The light isolator member according to claim 6 , wherein the plurality of fitting parts are disposed at positions that are symmetric about an optical axis of light that passes through the lens surface and the transmission surface.

8. A light isolator, comprising:
a first light isolator member;
a second light isolator member; and
an optical device disposed between the first light isolator member and the second light isolator member,
wherein each of the first light isolator member and the second light isolator member is the light isolator member according to claim 1 , and
wherein the fitting part of the first light isolator member and the fitting part of the second light isolator member are fitted with each other.

9. A light isolator, comprising:
a first light isolator member;
a second light isolator member; and
an optical device disposed between the first light isolator member and the second light isolator member,
wherein each of the first light isolator member and the second light isolator member is the light isolator member according to claim 7 , and
wherein the fitting part of the first light isolator member and the fitting part of the second light isolator member are fitted with each other.

10. The light isolator according to claim 9 , wherein the first light isolator member and the second light isolator member have a same shape.

Assignees

• Enplas Corp

Inventors

• Saito Yuki
• Kon Ayano

Classifications

• G02B6/3825

  with an intermediate part, e.g. adapter, receptacle, linking two plugs · CPC title

• G02F1/0955 Primary

  used as non-reciprocal devices, e.g. optical isolators, circulators · CPC title

• H01S5/0064

  Anti-reflection components, e.g. optical isolators · CPC title

• G02B6/2746 Primary

  comprising non-reciprocal devices, e.g. isolators, FRM, circulators, quasi-isolators (magneto-optic non-reciprocal devices G02F1/093) · CPC title

• G02B6/403

  of the ferrule type, connecting a pair of ferrules · CPC title