Lamp assembly and receptacle

• US 4,887,154 A
• Filed: 06/01/1988
• Issued: 12/12/1989
• Est. Priority Date: 06/01/1988
• Status: Expired due to Term

• Current Assignee: GE Inspection Technologies LP (General Electric Company)
• Original Assignee: Welch Allyn Incorporated
• Inventors: Wawro, Thaddeus J., Danna, Dominick, English, Stanley R.
• Primary Examiner(s): Peng, John K.
• Application Number:
  US07/201,062
• Time in Patent Office: 559 Days
• Field of Search: 358/93, 358/98, 358/240, 128/6, 362/33, 362/32, 362/294
• US Class Current: 348/68
• CPC Class Codes: A61B 1/0669 at proximal end of an endoscope
• CPC Class Codes: A61B 1/128 provided with means for regulating temperature
• CPC Class Codes: F21V 29/67 characterised by the arrangement of fans
• CPC Class Codes: F21V 29/70 characterised by passive heat-dissipating elements, e.g. heat-sinks

Abstract

A video system having a video processor mounted to a frame, a viewing probe coupled to the video processor that has an imaging device at its distal end, and an illumination apparatus coupled to the viewing probe. The illumination apparatus includes a lamp assembly containing a light source. The lamp assembly also contains first and second heat sink members thermally coupled to the light source. Each of the heat sink members are electrically conducting and electrically insulated from the other. The first and second heat sink members are electrically coupled to the electrodes respectively of the light source. The illumination apparatus further includes a housing containing an opening configured and dimensioned to permit the insertion of the lamp assembly therein. The illumination apparatus further includes a receptacle disposed within and supported by the housing and having first and second electrical conductors. The illumination apparatus further includes resilient clips, connected to the first and the second heat sink members to the first and second conductors of the receptacle respectively, upon insertion of the lamp assembly into the housing. Therefore, the light source can be actuated upon application of a power supply to the first and second electrical conductors of the receptacle.

Claims

1. A video system having, a video processor mounted to a frame;

a viewing probe coupled to the video processor that has an imaging device at its distal end; and

an illumination apparatus coupled to the viewing probe;

said illumination apparatus including;

a lamp assembly containing, a light source having first and second electrodes for illuminating a target in the viewing range of the imaging device of the viewing probe, and heat disposing means, thermally coupled to said light source for disposing heat energy generated by said light source, said heat disposing means being arranged to support said light source,

said heat disposing means having first and second heat sink members, each of said members being electrically conducting and one being electrically insulated from the other, said first and said second heat sink members being electrically coupled to the first and the second electrodes respectively of said light source;

housing means having front and rear walls and containing an opening configured and dimensioned to permit the insertion of said lamp assembly therein, for housing said lamp assembly;

a receptacle disposed within and supported by said housing means having first and second electrical conductors;

plug means connected to said first and said second heat sink members for detachably coupling said first and said second heat sink members to the first and the second conductors of said receptacle respectively upon the insertion of said lamp assembly into said housing means;

whereby said light source is actuated upon application of a power supply to the first and the second electrical conductors of said receptacle.

2. A video system as recited in claim 1, wherein said lamp assembly further contains a handle connected to said heat disposing means for enabling the manual removal of said lamp assembly from said housing means.

3. A video system as recited in claim 1, wherein said illumination apparatus further comprises means on said heat disposing means and extending therefrom to overlap the opening of said housing means for limiting the axial insertion of said lamp assembly into the opening of said housing.

4. A video system as recited in claim 1 wherein said plug means comprises resilient clips configured and dimensioned to resiliently embrace the first and the second conductors of said receptacle.

5. A video system as recited in claim 1, wherein said heat disposing means further comprises an insulating member, disposed between said first and said second heat sink members, for physically supporting said first and said second heat sink members, said first heat sink member being loosely mounted to said insulating member and said second heat sink member being fixedly mounted to said insulating member.

6. A video system as recited in claim 1, wherein said lamp assembly further comprises shunting means, electrically connected across said first and said second heat sink members, for shunting to an electrical ground electrical power signals operating in a predetermined undesired frequency range.

7. A video system as recited in claim 1, wherein one of said heat sink members contains a lamp aperture to permit the projection of light energy from said source to a point external to said lamp assembly.

8. A video system as recited in claim 7, wherein at least one of said heat sink members is slidably mounted to its respectively coupled electrode of said light source.

9. A video system as recited in claim 8, wherein at least one of said electrical conductors is slidably mounted in said housing means such that the relative positions of said first and said second electrical conductors are displaceable.

10. A video system as recited in claim 9, wherein said lamp assembly further contains a handle connected to said heat disposing means for enabling the manual removal of said lamp assembly from said housing means.

11. A video system as recited in claim 9. wherein said illumination apparatus further comprises means on said heat disposing means and extending therefrom to overlap the opening of said housing means for limiting the axial insertion of said lamp assembly into the opening of said housing.

12. A video system as recited in claim 9 wherein said plug means comprises resilient clips configured and dimensioned to resiliently embrace the first and the second conductors of said receptacle.

13. A video system as recited in claim 9, wherein said heat disposing means further comprises an insulating member, disposed between said first and said second heat sink members, for physically supporting said first and said second heat sink members, said first heat sink member being loosely mounted to said insulating member and said second heat sink member being fixedly mounted to said insulating member.

14. A video system as recited in claim 9, wherein said lamp assembly further comprises shunting means, electrically connected across said first and said second heat sink members, for shunting to an electrical ground electrical power signals operating in a predetermined undesired frequency range.