Connector for optical sensor

• US 4,998,182 A
• Filed: 02/08/1990
• Issued: 03/05/1991
• Est. Priority Date: 02/08/1990
• Status: Expired due to Term

• Current Assignee: GE Inspection Technologies LP (General Electric Company)
• Original Assignee: Welch Allyn Incorporated
• Inventors: Vivenzio, Robert L., Krauter, Allan I.
• Primary Examiner(s): Thompson, Gregory D.
• Application Number:
  US07/476,946
• Time in Patent Office: 390 Days
• Field of Search: 128/4, 128/6, 358/98, 361/380, 361/392, 361/394, 361/413, 361/428, 439/482, 439/819, 439/840, 439/841, 439/482, 439/912
• US Class Current: 361/730
• CPC Class Codes: A61B 1/00114 Electrical cables in or with an endoscope
• CPC Class Codes: A61B 1/00124 electrical, e.g. electrical plug-and-socket connection
• CPC Class Codes: A61B 1/00126 optical, e.g. for light supply cables
• CPC Class Codes: A61B 1/051 Details of CCD assembly
• CPC Class Codes: G02B 6/4204 the coupling comprising intermediate optical elements, e.g. lenses, holograms encapsulated active devices H01S5/02208, H01L33/52
• CPC Class Codes: G02B 6/444 Systems or boxes with surplus lengths
• CPC Class Codes: G02B 6/4457 Bobbins; Reels

Abstract

A connector is provided for a highly miniaturized integrated circuit imager that is supported in a sealed package that has a transparent distal plate and a plurality of connector pins that extend proximally from the package. The connector pins are trimmed short and metal coil springs are disposed on each of these pins. The connector includes tubular sockets mounted onto an elongated ceramic capacitor which serves to smooth power that is applied between the power and ground pins of the imager. A canister is situated over the imager to retain the same with the springs compressed against their respective sockets. Deflectable legs that extend proximally from the canister are bent inward and bound with a coil of fishline or other suitable cord to retain the canister in place.

Claims

1. An imager and connector assembly comprising

an integrated-circuit imager supported in a package having a transparent distal plate and a plurality of connector pins that extend proximally from the package in a predetermined array, the connector pins including a pair of power pins to which electrical power is supplied, a video signal output pin, and a control signal input pin;

a connector connecting the imager to a plurality of conductors carrying electrical power and control signals to said imager and carrying video signals from said imager to a video signal processor;

the connector including a plurality of metal coil springs each disposed on a respective one of the pins of said imager, a plurality of tubular sockets each connected to a respective one of said conductors and having a tubular distal portion to receive the springs mounted on the pins of said imager, and means mounting said tubular sockets in a predetermined array to match that of said connector pins; and

means retaining said integrated circuit imager in said connector so that said coil springs are biased against conductive surfaces of the associated sockets.

2. The imager and connector assembly of claim 1 wherein the connector has a pair of said sockets disposed radially opposite one another, and includes an elongated capacitor extending axially between said pair of sockets with said pair of sockets soldered onto oppositely disposed electrodes of said capacitor.

3. The imager and connector assembly of claim 2 wherein said capacitor is an elongated ceramic capacitor and said electrodes thereof are axially elongated metallized surfaces thereon.

4. The imager and connector assembly of claim 3 wherein said connector has a second pair of said sockets supported on additional axially elongated surfaces of said capacitor.

5. The imager and connector assembly of claim 4, said connector further including a sheath of shrink tubing over the first mentioned and second pairs of sockets and said capacitor.

6. The imager and connector assembly of claim 5 wherein said means retaining the imager in said socket includes a tubular conductive canister disposed over said connector and said imager, and said connector further includes an additional socket coupled to a grounding conductor and situated between the sheath of shrink tubing and the canister.

7. The imager and connector assembly of claim 1 wherein said imager package distal plate has a chamferred peripheral edge, and said canister has a conic surface portion positioned distally on its interior and on which said chamferred peripheral edge is seated.

8. The imager and connector assembly of claim 7, wherein said canister has a plurality of deflectable legs extending axially at a proximal end of the canister and which are drawn toward the axis and secured over a proximal end of said connector.

9. The imager and connector assembly of claim 8, further comprising a coil of fish line on said legs and binding them.

10. The imager and connector assembly of claim 9, in which said conductors are contained within a wiring harness and a sealant of RTV or epoxy is placed between the deflectable legs and said wiring harness to prevent ingress of water or other contaminants.

11. The imager and connector assembly of claim 1, wherein each said tubular socket has a transverse slit through which its associated conductor is to pass, so that an end of the associated conductor enters the proximal end of the respective socket and exits through the respective transverse slit with a proximal end of the respective socket being crimped onto the associated conductor for mechanical support and the end of the associated conductor outside the respective transverse slit being soldered to an exterior surface of the associated socket.

12. The imager and connector assembly of claim 11, wherein a central portion of each said tubular socket is flattened to provide that tubular socket with both an exterior surface with space for soldering the associated conductor and an internal surface against which the coil spring on the associated connector pin can be compressed.