Optical viewing system and clamping device therefor

• US 6,449,419 B1
• Filed: 09/05/2000
• Issued: 09/10/2002
• Est. Priority Date: 09/05/2000
• Status: Active Grant

• Current Assignee: Internal Revenue Service (Government of the United States of America)
• Original Assignee: Alvin Wirthlin, Richard Brough
• Inventors: Brough, Richard, Wirthlin, Alvin R.
• Primary Examiner(s): NASRI, JAVAID H
• Application Number:
  US09/655,433
• Time in Patent Office: 735 Days
• Field of Search: 385/136, 385/137, 385/62, 385/81, 439/799
• US Class Current: 385/136
• CPC Class Codes: F41G 1/35 for illuminating the target , e.g. flash lights

Abstract

An optical viewing assembly and system for transferring image information from one image modifying device to another image modifying device. The optical viewing assembly includes a first image modifying device connected to a second image modifying device through a quick-release clamping arrangement. The clamping arrangement includes first and second clamping portions integrally formed at opposite ends of a hollow sleeve. Each clamping portion has a split collar that is adapted to receive one of the image modifying devices. Each collar includes a pair of clamping legs that are separated from the sleeve by a slot that extends at least part way around a perimeter of the sleeve to thereby permit movement of the clamping legs toward and away from each other. Movement of the clamping legs toward each other reduces a cross dimension of the split collar to thereby clamp one of the image modifying devices therein. Conversely, movement of the clamping legs away from each other increases a cross dimension of the split collar to thereby release a clamped image modifying device. One of the image modifying devices may be in the form of a scope, while another of the image modifying devices may be in the form of a fiber optic viewer. The fiber optic viewer includes a fiber optic bundle that is divided into first and second fiber optic segments. A forward end of the fiber optic bundle is connected to the ocular end of the scope for transferring an image incident at the first image modifying device to a rearward end of each fiber optic segment. One of the segments may be connected to a digital video camera for recording or transmitting the image, and another of the segments may be connected to an eyepiece for simultaneously viewing the image by a user. Other image modifying devices, such as a night vision monocular, may be connected through a further quick release clamp to the opposite end of the scope for viewing images in low light conditions.

Claims

1. A clamping device for releasably coupling two objects together, the clamping device comprising:

a hollow sleeve having a first end and a second end;

a first clamping portion integrally connected to the hollow sleeve first end;

a second clamping portion integrally connected to the hollow sleeve second end;

each of the first and second clamping portions having a split collar that is adapted to receive one of the objects, each collar having a pair of clamping legs with a generally longitudinally extending space therebetween, at least one of the clamping legs being separated from the sleeve by a slot that extends at least part way around a perimeter of the sleeve in a direction generally transverse to the space to thereby permit movement of at least one of the clamping legs toward and away from the other of the clamping legs, wherein movement of the at least one clamping leg toward the other clamping leg reduces a cross dimension of the split collar to thereby clamp one of the objects therein, and wherein movement of the at least one clamping leg away from the other clamping leg increases a cross dimension of the split vollar to thereby release a clamped object.

2. A clamping device according to claim 1, wherein the first and second clamping portions are coaxial.

3. A clamping device according to claim 1 and further in combination with the two objects, with one of the objects comprising a first image modifying device mounted in the first clamping portion and the other of the objects comprising a second image modifying device mounted in the second clamping portion.

4. A combination according to claim 3, wherein the first and second clamping portions are coaxial such that the image modifying devices extend along a common optical axis.

5. A combination according to claim 3, and further comprising a bushing located between each image modifying device and the respective clamping portion.

6. A combination according to claim 5, wherein the bushings are constructed of an elastomeric material.

7. A combination according to claim 3, wherein the first image modifying device comprises a scope, and the second image modifying device comprises a fiber optic viewer with first and second ends, the first end of the fiber optic viewer being mounted to an ocular end of the scope through the clamping device for transmitting an image incident at the ocular end to the second end of the fiber optic viewer.

8. A combination according to claim 3, wherein the first image modifying device comprises a scope, and the second image modifying device comprises a fiber optic viewer, the fiber optic viewer comprising a fiber optic bundle that is divided into at least first and second fiber optic segments, a forward end of the fiber optic bundle being connected to an ocular end of the scope through the clamping device for transmitting an image incident at the ocular end to a rearward end of each fiber optic segment.

9. A combination according to claim 8, and further comprising a third image modifying device mounted to the rearward end of one of the first and second fiber optic segments for transforming the incident image into electrical signals.

10. A combination according to claim 9, wherein a lens assembly is mounted to the rearward end of the other of the first and second segments for simultaneously viewing the incident image by a user.

11. A combination according to claim 10, and further comprising a transmitter operably associated with the third image modifying device for transmitting the electrical signals to a remote location.

12. A combination according to claim 11, and further comprising a receiver at the remote location for receiving the transmitted electrical signals.

13. A combination according to claim 11, and further comprising a display operably associated with the receiver for viewing the incident image at the remote location.

14. A combination according to claim 13, and further comprising a night vision device mounted to an objective end of the scope.

15. A combination according to claim 9, wherein the third image modifying device comprises a video camera.

16. A clamping device for relesably coupling two objects together, the clamping device comprising:

a hollow sleeve having a first end and a second end;

a first clamping portion integrally connected to the hollow sleeve first end;

a second clamp portion integrally connected to the hollow sleeve second end;

each of the first and second clamping portions having a split collar that is adapted to receive one of the objects, each collar having a pair of clamping legs with a generally longitudinally extending space therebetween, at least one of the clamping legs being separated from the sleeve by a slot that extends at least part way around a perimeter of the sleeve in a direction generally transverse to the space to thereby permit movement of at least one of the clamping legs toward and away from the other of the clamping legs, wherein movement of the at least one clamping leg toward the other clamping leg reduces a cross dimension of the split collar to thereby clamp one of the objects therein, and wherein movement of the at least one clamping leg away from the other clamping leg increases a cross dimension of the split collar to thereby release a clamped object;

at least one of the clamping portions further comprising;

a locking lever pivotally connected to one of the camping legs at a first pivot joint; and

a link arm having a first end pivotally connected to the other clamping leg at a second pivot joint and a second end pivotally connected to the locking lever at a third pivot joint;

wherein rotation of the locking lever in one direction causes the clamping legs to move toward each other and rotation of the locking lever in an opposite direction causes the clamping legs to move away from each other.

17. A clamping device according to claim 16, wherein the third pivot joint is moved to an over center position with respect to an imaginary line extending through the first and second pivot joints when the locking lever is rotated in the one direction to thereby retain the locking lever in a locked position.

18. A clamping device for releasably coupling two objects together, the clamping device comprising:

a hollow sleeve having a first end and a second end;

a first clamping portion integrally connected to the hollow sleeve first end;

a second clamping portion integrally connected to the hollow sleeve second end;

each of the first and second clamping portions having a split collar that is adapted to receive one of the objects, each collar having a pair of clamping legs with a generally longitudinally extending space there between at least one of the clamping legs being separated from the sleeve by a slot that extends at least part way around a perimeter of the sleeve in a direction generally transverse to the space to thereby permit movement of at least one of the clamping legs toward and away from the other of the clamping legs, wherein movement of the at least one clamping leg toward the other clamping leg reduces a cross dimension of the spilt collar to thereby clamp one of the objects therein, and wherein movement of the at least one clamping leg away from the other clamping leg increases a cross dimension of the split collar to thereby release a clamped object;

each clamping portion further comprising;

a locking lever pivotally connected to one of the clamping legs at a first pivot joint; and

a link arm having a first end pivotally connected to the other clamping leg at a second pivot joint and a second end pivotally connected to the locking lever at a third pivot joint;

wherein rotation of the locking lever in one direction causes the clamping legs to move toward each other and rotation of the locking lever in an opposite direction causes the clamping legs to move away from each other.

19. A clamping device according to claim 18, wherein the third pivot joint is moved to an over center position with respect to an imaginary line extending through the first and second pivot joints when the locking lever is rotated in the one direction to thereby retain the locking lever in a locked position.

20. A clamping device according to claim 18, wherein the locking levers of the first and second clamping portions extend in similar directions.

21. A clamping device according to claim 20, wherein the locking levers are located on similar sides of the clamping portions.

22. A clamping device according to claim 18, wherein the locking levers of the first and second clamping portions extend in opposite directions.

23. A clamping device according to claim 22, wherein the locking levers are located on similar sides of the clamping portions.