OPTICAL FIBER CONNECTOR AND ADAPTER

• US 20100322561A1
• Filed: 12/11/2009
• Published: 12/23/2010
• Est. Priority Date: 06/18/2009
• Status: Active Grant

• Current Assignee: Protai Photonic Co., Ltd., SENKO Advanced Components, Inc. (SENKO Group Holdings Co., Ltd.)
• Original Assignee: Protai Photonic Co., Ltd., SENKO Advanced Components, Inc. (SENKO Group Holdings Co., Ltd.)
• Inventors: Gniadek, Jeffery, Yang, Jyh Cherng, LIN, I En, Mamiya, Tomoyuki
• Granted Patent: US 8,408,815 B2
• Time in Patent Office: Days
• US Class Current: 385/55
• CPC Class Codes: G02B 6/3825 with an intermediate part, e.g. adapter, receptacle, linking two plugs
• CPC Class Codes: G02B 6/3831 comprising a keying element on the plug or adapter, e.g. to forbid wrong connection keying element on the ferrule G02B6/3851; keying element for electrical coupling H01R13/64

Abstract

An optical fiber connector and adapter according to the present invention are provided. At least one indentation is formed on the connector and a protrusion mating with the indentation is formed within the adapter thereby physically limiting the insertion of a connector into a particular adapter.

Claims

1. An optical fiber connector for being inserted into an optical fiber adapter, the optical fiber adapter having a protrusion therein, the optical fiber connector comprising:

a housing having a front end, a first side-wall, a second side-wall, a third side-wall and a fourth side-wall, the third side-wall being opposite to the first side-wall and connecting with the second and fourth side-walls, wherein an indentation is positioned on the edge of the third side-wall and adjacent to the second side-wall, the indentation extends from the front end, the protrusion of the optical fiber adapter will be placed in the indentation when the optical fiber connector is inserted into the optical fiber adapter; and

a latch positioned on the first side-wall of the housing.

2. The optical fiber connector as claimed in claim 1, wherein the indentation is rectangular.

3. An optical fiber connector for being inserted into an optical fiber adapter, the optical fiber adapter having a protrusion therein, the optical fiber connector comprising:

a housing having a front end, a first side-wall, a second side-wall, a third side-wall and a fourth side-wall, the third side-wall being opposite to the first side-wall and connecting with the second and fourth side-walls, wherein an indentation is positioned on the common boundary between the second and third side-walls, the indentation extends from the front end, the protrusion of the optical fiber adapter will be placed in the indentation when the optical fiber connector is inserted into the optical fiber adapter; and

a latch positioned on the first side-wall of the housing.

4. The optical fiber connector as claimed in claim 3, wherein the indentation has at least two side-walls that are parallel to the second and third side-walls, respectively.

5. An optical fiber connector for being inserted into an optical fiber adapter, the optical fiber adapter having a protrusion therein, the optical fiber connector comprising:

a housing having a front end, a first side-wall, a second side-wall, a third side-wall and a fourth side-wall, the third side-wall being opposite to the first side-wall and connecting with the second and fourth side-walls, wherein a cut face is formed on the common boundary between the second and third side-walls, the cut face extends from the front end, the protrusion of the optical fiber adapter will be brought into contact with the cut face when the optical fiber connector is inserted into the optical fiber adapter; and

a latch positioned on the first side-wall of the housing.

6. The optical fiber connector as claimed in claim 5, wherein the cut face is plane.

7. An optical fiber adapter for receiving an optical fiber connector, the optical fiber connector having a first indentation thereon, the optical fiber adapter comprising:

a housing having an axial cavity defined by a first side-wall, a second side-wall, a third side-wall and a fourth side-wall, the third side-wall being opposite to the first side-wall and connecting with the second and fourth side-walls, the axial cavity having an opening;

a hollow cylinder axially positioned in the axial cavity; and

a protrusion positioned on the third side-wall in the axial cavity and adjacent to the second side-wall, wherein the protrusion will be placed in the first indentation on the optical fiber connector when the optical fiber connector is inserted into the optical fiber adapter.

8. The optical fiber adapter as claimed in claim 7, wherein the protrusion is positioned closer to the opening of the axial cavity than the cylinder.

9. The optical fiber adapter as claimed in claim 7, wherein the protrusion is rectangular.

10. The optical fiber adapter as claimed in claim 7, wherein the protrusion connects with the second side-wall.

11. The optical fiber adapter as claimed in claim 7, further comprising:

a plate attached to the outer surface of the housing, the plate having a color different from that of the housing.

12. The optical fiber adapter as claimed in claim 11, wherein the plate is plastic.

13. The optical fiber adapter as claimed in claim 7, further comprising:

a plate attached to one of the first and third side-walls, the plate having a color different from that of the attached side-wall.

14. The optical fiber adapter as claimed in claim 13, wherein the plate is plastic.

15. The optical fiber adapter as claimed in claim 13, wherein the attached side-wall has a second indentation formed thereon, the plate is attached to the second indentation.

16. The optical fiber adapter as claimed in claim 15, wherein the plate is attached to the second indentation by ultrasonic welding.