Optical connector assembly

• US 7,140,785 B2
• Filed: 05/18/2005
• Issued: 11/28/2006
• Est. Priority Date: 05/20/2004
• Status: Expired due to Fees

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Sampei, Tsutomu, Hirayama, Tomoshi, Tomita, Hisashi, Mizutani, Yoichi, Kajimoto, Masato, Machida, Yuichi
• Primary Examiner(s): Font, Frank G.
• Assistant Examiner(s): WONG, ERIC K
• Application Number:
  US11/131,979
• Publication Number:
  US 20050271331A1
• Time in Patent Office: 559 Days
• Field of Search: 385/79, 385/83, 385/88
• US Class Current: 385/92
• CPC Class Codes: H01L 31/167 the light sources and the devices sensitive to radiation all being semiconductor devices characterised by potential barriers
• CPC Class Codes: H04B 10/801 using optical interconnects, e.g. light coupled isolators, circuit board interconnections

Abstract

An optical connector assembly has a plug connector having a first optical element for performing emission or receipt of light and a first lens. It also has a receptacle connector having a second optical element for performing receipt or emission of light and a second lens. The plug connector includes a convex portion having sectional configuration of round arch and the first lens, and a plug portion formed on a forward end of the convex portion. The plug portion is perpendicular to first optical axis of the first optical element and the first lens. The receptacle connector includes a concave portion into which the convex portion is inserted and a receptacle portion in a bottom of the concave portion. The receptacle portion is perpendicular to second optical axis of the second optical element and the second lens. The plug or receptacle connector has supporting mechanism that supports the connector movably.

Claims

1. An optical connector assembly which connects optical communication devices detachably to each other, said assembly comprising:

a plug connector having a first optical element for pci-forming any one of emission and receipt of light, and a first lens, the first optical element and the first lens having a first optical axis identical to each other; and

a receptacle connector having a second optical element for performing the remained one of the emission and receipt of light, and a second lens, the second optical element and the second lens having a second optical axis identical to each other,

wherein the plug connector includes a convex portion having sectional configuration of round arch a diameter of which is gradually diminished along the first optical axis, and a plug portion formed on a forward end of the convex portion, said plug portion being perpendicular to the first optical axis,

wherein the receptacle connector includes a concave portion into which the convex portion is inserted and a receptacle portion formed in a bottom of the concave portion, said receptacle portion being perpendicular to the second optical axis,

wherein any one of the plug connector and the receptacle connector has supporting mechanism that supports the connector movably, and

wherein the curvature of the convex portion of the plug differs from the curvature of the concave portion of the receptacle such that, when the concave portion and convex portion are brought into contact, the convex portion contacts only an outer edge of the concave portion.

2. The optical connector assembly according to claim 1, wherein the supporting mechanism includes an elastic member that supports any one of the plug connector and the receptacle connector movably in any one of a direction along any one of the first and second optical axes and a direction which is traversed to any one of the first and second optical axes.

3. The optical connector assembly according to claim 2, wherein the elastic member includes a coil spring having elasticity along any one of the first and second optical axes.

4. The optical connector assembly according to claim 1, wherein any one of the plug connector and the receptacle connector which is supported by the supporting mechanism has guide portion which returns a position of any one of the plug connector and the receptacle connector to their original position.

5. The optical connector assembly according to claim 1, wherein any one of the plug connector and the receptacle connector includes movable holder that is independently moved, said movable holder having any one of the first and second optical elements, any one of the first and second lenses, and any one of the plug portion and the receptacle portion.

6. An optical communication device which performs optical communication, said device having an optical connector assembly, said assembly comprising:

a plug connector having an optical element for performing any one of emission and receipt of light, and a lens, said optical element and the lens having an optical axis identical to each other,

wherein the plug connector includes a convex portion having sectional configuration of round arch a diameter of which is gradually diminished along the optical axis, and a plug portion formed on a forward end of the convex portion, said plug pardon being perpendicular to the optical axis.

7. The optical communication device according to claim 6 further comprising a supporting mechanism that supports the plug connector movably.

8. The optical communication device according to claim 7, wherein the supporting mechanism includes an elastic member that supports the plug connector movably in any one of a direction along the optical axis and a direction which is traversed to the optical axes.

9. The optical communication device according to claim 8, wherein the elastic member includes a coil spring having elasticity along the optical axis.

10. The optical communication device according to claim 7, wherein the plug connector which is supported by the supporting mechanism has guide portion which returns a position of the plug connector to its original position.

11. The optical communication device according to claim 7, wherein the plug connector includes movable holder that is independently moved, said movable holder having the optical element, the lens, and the plug portion;

and

wherein the supporting mechanism supports the movable holder movably.

12. An optical communication device which performs optical communication, said device having an optical connector assembly, said assembly comprising:

a receptacle connector having an optical element for performing any one of emission and receipt of light, and a lens, said optical element and the lens having an optical axis identical to each other,

wherein the receptacle connector includes a concave portion having sectional configuration of round arch a diameter of which is gradually diminished along the optical axis, and a receptacle portion formed in a bottom of the concave portion, said receptacle portion being perpendicular to the optical axis.

13. The optical communication device according to claim 12 further comprising a supporting mechanism tat supports the receptacle connector movably.

14. The optical communication device according to claim 13, wherein the supporting mechanism includes an elastic member that supports the receptacle connector movably in any one of a direction along the optical axis and a direction which is traversed to the optical axis.

15. The optical communication device according to claim 14, wherein the elastic member includes a coil spring having elasticity along the optical axis.

16. The optical communication device according to claim 13, wherein the receptacle connector which is supported by the supporting mechanism has guide portion which returns a position of the receptacle connector to its original position.

17. The optical communication device according to claim 13, wherein the receptacle connector includes movable holder that is independently moved, said movable holder having the optical element, the lens, and the receptacle portion;

and wherein the supporting mechanism supports the movable holder movably.

18. An optical connector assembly comprising:

a plug connector having a first optical axis longitudinal to the plug connector, a convex portion substantially perpendicular to the first optical axis and a plug portion formed on a forward end of the convex portion, said convex portion having a first curvature; and

a receptacle connector having a second optical axis longitudinal to the receptacle connector, a concave portion substantially perpendicular to the second optical axis and a receptacle portion formed on a forward end of the concave portion, said concave portion having a second curvature different from the first curvature; and

a spring to urge the concave portion to mate with the convex portion,

wherein, when the concave portion of the receptacle and convex portion of the plug are brought into contact the convex portion contacts only an outer edge of the concave portion.

19. The optical connector of claim 18, wherein the first optical axis and the second optical axis are aligned substantially and inclination therebetween is prevented when the convex portion and concave portion are fitted together.