Optical connector receptacle and plug

• US 4,762,388 A
• Filed: 03/15/1985
• Issued: 08/09/1988
• Est. Priority Date: 03/19/1984
• Status: Expired due to Fees

• Current Assignee: Berg Technology, Inc. (Amphenol Corporation)
• Original Assignee: E. I. du Pont de Nemours and Company (Corteva, Inc.)
• Inventors: Tanaka, Toshiyasu, Ariga, Sadakazu
• Primary Examiner(s): Sikes, William L.
• Assistant Examiner(s): HEALY, BRIAN
• Application Number:
  US06/712,404
• Time in Patent Office: 1,243 Days
• Field of Search: 350/96.20, 350/96.21, 350/96.22, 350/96.23
• US Class Current: 385/58
• 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
• CPC Class Codes: G02B 6/3878 comprising a plurality of ferrules, branching and break-out means
• CPC Class Codes: G02B 6/389 characterised by the method of fastening connecting plugs and sockets, e.g. screw- or nut-lock, snap-in, bayonet type
• CPC Class Codes: G02B 6/3893 Push-pull type, e.g. snap-in, push-on

Abstract

A receptacle adapted for connection in tight fit with an optical connector plug having a protective guide member surrounding a ferrule accommodating an optical fiber therein and spaced away from the outer circumference of the ferrule. The receptacle comprises at least a first supporting member having a hollow passage capable of receiving the ferrule, and a second supporting member spaced from the first supporting member for receiving and supporting the protective guide member of the ferrule. The plug comprises at least a ferrule containing an optical fiber therein and adapted to be received in the hollow passage of the first supporting member of the receptacle, and a protective guide member surrounding the ferrule at a position spaced away from the outer circumference of the ferrule and adapted to be received in the space between the first and second supporting members of the receptacle.

Claims

1. An optical connector receptacle adapted to receive and connect in tight fit with at least one optical connector plug which has a protective guide member surrounding at least one ferrule containing an optical fiber, the outer surface of each said ferrule being separated by a defined space from an inner surface of the guide member surrounding said ferrule, said receptacle comprising:

a housing having at least one space open to the receiving end of said receptacle, said one space having a profile conforming to the profile of the outer surface of the protective guide member of said plug,

at least two separate supporting members disposed linearly adjacent one another within said one space of the housing, each said supporting member surrounding and defining at least one passage extending from said receiving end of the receptacle to the opposite end, the outer surface of each said supporting member being separated from an inner surface of the housing by the remainder of said one space, each said supporting member having a cross-sectional shape conforming to the defined space between said ferrule and the guide member of the plug, and

a pair of apertures formed in said housing on opposite sides of said one space, each aperture being open to the receiving end of the receptacle and adapted to receive one of a corresponding pair of spring latching arms extending along opposite sides of the protective guide member of said plug, each said aperture having therein means for releasably latching with each arm of the plug,

whereby when said plug is inserted into the receptacle, the ferrule will be received within the passage defined by said supporting member while said supporting member is received within the defined space between the ferrule and the guide member, and the guide member is received within the remainder of said one space of the housing, all respective mating surfaces between the receptacle and plug contributing to said tight fit, said plug being further retained within the receptacle by the arms releasably latched within said pair of apertures of said receptacle.

2. The optical connector receptacle of claim 1 wherein at least two separate plugs, each with at least one ferrule disposed within a protective guide member, are received within said one space to mate respectively with one of said separate supporting member.

3. The optical connector receptacle of claim 1 wherein at least two ferrules are disposed within a protective guide member of one plug which is received within said one space.

5. The optical connector receptacle of claim 1 wherein said one space in the receptacle further includes diretion guide means for ensuring proposed alignment of each said plug with the receptacle.

6. The optical connector receptacle of claim 1, further comprising an optical data link disposed at said opposite end of said receptacle housing, said data link being adapted for two-way light transmission along from and to the optical fiber of each ferrule, and for converting optical information to and from electrical information.

7. The optical connector receptacle of claim 1, further comprising at the opposite end of said receptacle a second identical receptacle which is the mirror image of the first, both receptacles having a common housing to form an adaptor for receiving plugs at either end.

4. The optical connector recpetacle of claim 31, wherein one of the supporting members has at least two separate pasages for mating with the ferrules disposed within a protective guide member of one plug and another of the support members mates with a separate plug.

8. An optical connector plug adapted to be received in and connect in tight fit with an optical connector recpetacle which has a housing with at least one space open to the receiving end of the receptacle and at least two separate supporting members disposed linearly adjacent one another in said one space, each said supporting member surrounding and defining at least one passage extending from said receiving end to the opposite end, the outer surface of each said supporting member being separated from an inner surface of the housing by the remainder of said one space, said plug comprising

at least one ferrule containing an optical fiber adapted to be received within said one passage defined by the supporting member of the receptacle,

a protective guide member surrounding said ferrule, the outer surface of the ferrule being separated by a defined space from an inner surface of the guide member surrounding said ferrule, the outer surface of said protective guide member havign a profile conforming to the profile of said one space of the receptacle, said defined space between the ferrule and protective guide member conforming to the cross-sectional shape of said supporting member of the receptacle housing, and

a pair of spring arms extending along opposite sides of the protective guide member of said plug, said spring arms adapted to be received and releasably latched within a corresponding pair of apertures formed in said receptacle housing on opposite sides of said one space,

whereby when said plug is inserted into the receptacle, the ferrule will be received within the passage defined by said supporting member while said supporting member is received within the defined space between the ferrule and the guide member, and the guide member is received within the remainder of said one space of the housing, all respective mating surfaces between the receptacle and plug contributing to said tight fit, said plug being further retained within the receptacle by said pair of apertures of said spring arms being releasably latched within the receptacle.

9. The optical connector plug of claim 8 wherein the protective guide member has at least two separate ferrules disposed therein.

10. The optical connector plug of claim 8 wherein two plugs each with at least one ferrule are received with the receptacle housing.

11. The optical connector plug of claim 10 wherein one of the two plugs has two separate ferrules disposed therein.

12. The optical connector plug of claim 8, further comprising a direction guide means provided along the outer surfaces of the protective guide member for ensuring proper alignment of the plug within the receptacle.