Claims
- 1. A hand-held laser device comprising:
a casing formed with a substantially hollow interior space; a laser emitter within said interior space, said laser emitter having at least an exciting lamp and a laser rod spaced from each other; a source generating a stream of gaseous coolant within the interior space; and a fluid cooling arrangement at least partially surrounding said laser rod, said fluid cooling arrangement being disposed within said stream of gaseous coolant for heat removal therefrom.
- 2. The hand-held laser device according to claim 1, wherein said fluid cooling arrangement is a liquid cooling arrangement comprising a housing having an elongated opening passing therethrough, said elongated opening is adapted to at least partially receive said laser rod thereinside, and an intermediate accumulation chamber disposed within said casing and communicating with said housing.
- 3. The hand-held laser device of claim 2, further comprising at least one connecting element providing communication between said housing and said intermediate accumulation chamber.
- 4. The hand-held laser device of claim 3, wherein said at least one connecting element comprises inlet and outlet connecting elements for communication between said housing and said intermediate accumulation chamber.
- 5. The hand-held laser device of claim 4, wherein a pumping arrangement is associated with said inlet connecting element, so as to provide circulation of a liquid coolant between said housing and said intermediate accumulation chamber.
- 6. The hand-held laser device according to claim 5, further comprising a buffer space formed between exterior and interior walls of the casing, said buffer space communicates with said intermediate accumulation chamber.
- 7. The hand-held laser device according to claim 6, wherein said liquid coolant circulates between said housing, intermediate accumulation chamber and buffer space.
- 8. The hand-held laser device according to claim 7, wherein an exterior of said housing and intermediate accumulation chamber are situated within said stream of gaseous coolant so as to facilitate heat removal from the liquid coolant contained thereinside.
- 9. The hand-held device according to claim 8, wherein said inner wall of the casing is exposed to said stream of gaseous coolant so as to facilitate heat removal from the liquid coolant situated within the buffer space, and an auxiliary cooling element is provided having a thermal contact with the exterior wall of the intermediate accumulation chamber.
- 10. The hand-held laser device according to claim 6, wherein a plurality of cooling fins are formed of a heat conducting material and extend from said inner wall of the casing, said plurality of cooling fins are positioned within said stream of gaseous coolant for heat removal from the liquid coolant situated within the buffer space.
- 11. The hand-held laser device of claim 10, wherein said liquid cooling arrangement further comprises input and discharge elements providing communication between said buffer space and said intermediate accumulation chamber.
- 12. The hand-held laser device according to claim 1, wherein said fluid cooling arrangement is a liquid cooling arrangement and said stream of gaseous coolant is formed by a low pressure zone formed at one end of the casing.
- 13. A hand-held laser device comprising:
an enlongated casing formed with a substantially hollow interior space; a laser emitter formed by at least an exciting lamp and a laser rod spaced from each other; and a low pressure zone formed within said interior space to facilitate formation of a stream of gaseous coolant thereinside.
- 14. The hand-held laser device according to claim 13, wherein said housing extends between front and rear ends thereof; and
an inlet opening is provided at said front end, said low pressure zone is formed at said rear end, a stream of gaseous coolant enters said interior space through said opening and axially extends in the front to rear direction for heat removal from said laser emitter.
- 15. The hand-held laser device according to claim 14, wherein a filter is provided at said inlet opening for filtering a stream of gaseous coolant entering the interior space.
- 16. The hand-held laser device according to claim 13, wherein an inlet opening is formed at a rear area thereof, so that upon entering the interior space the stream of gaseous coolant initially moves axially in the rear to front direction and then moves in the front to rear direction.
- 17. A cooling arrangement for a hand-held laser device, comprising:
a laser emitter formed by at least a laser rod and an exciting lamp spaced from each other; a jacket defined by at least spaced from each other exterior and interior walls thereof, a longitudinal opening extending through said jacket and defined by said interior wall, said longitudinal opening being adapted to rotatably receive said laser rod; and a continuous internal spiral groove formed within a body of said jacket at said interior wall, so as to provide positive displacement of a cooling fluid within said internal groove about an outer periphery of said laser rod during rotation of said jacket about said laser rod.
- 18. The cooling arrangement according to claim 17, wherein said cooling fluid is a cooling liquid, said laser emitter further comprises a reflector at least partially surrounding said laser rod and said exciting lamp; a housing is separated from said reflector by a substantially hollow area, so as to form a buffer space therebetween.
- 19. The cooling arrangement according to claim 18, wherein said buffer space is connected to said internal spiral groove, to provide fluidal communication therebetween.
- 20. The cooling arrangement according to claim 18, further comprising a source for generating a stream of gaseous coolant situated externally of said casing.
- 21. The cooling arrangement according to claim 20, wherein said source is a rotating fan and said casing is formed with a plurality of apertures facilitating entering and exiting said flow of gaseous coolant with respect to the interior of the housing.
- 22. The cooling arrangement according to claim 21, wherein said casing is positioned within the stream of gaseous coolant, so as to facilitate heat removal from the liquid coolant situated within the buffer space.
- 23. A cooling arrangement for a laser device comprising:
a laser emitter formed by at least an exciting lamp and a laser rod spaced from each other; a jacket stationarily positioned with respect to said laser rod unit, said jacket having a longitudinal interior opening extending therethrough; and a continuous spiral arrangement is provided at an outer periphery of the laser rod and extending outwardly therefrom, whereby rotational motion of the continuous external spiral arrangement provides a rotary positive displacement of a cooling fluid along said laser rod.
- 24. The cooling arrangement according to claim 23, wherein said continuous external spiral arrangement is fixedly associated with the outer periphery of the laser rod, said cooling fluid is a cooling liquid which is carried out by said continuous external spiral arrangement, so as to be axially displaced upon rotation of the laser rod.
- 25. A cooling arrangement according to claim 24, wherein said continuous external spiral arrangement is carved out from the body of said laser rod.
- 26. The hand-held laser device according to claim 23, wherein said continuous external spiral arrangement is rotatable independently of said laser rod.
- 27. A hand-held laser device comprising:
a casing having substantially a hollow interior space; a laser emitter within said interior space, said laser emitter formed by at least one exciting lamp and a laser rod spaced from each other, said laser rod having a frustroconical configuration or being shaped as a frustum of polygonal pyramid; and a source generating a stream of coolant within the interior space of the casing.
- 28. The hand-held device according to claim 27, wherein said laser emitter further comprises said laser rod being interposed between a fully reflective and semi-reflective resonant mirrors, wherein a largest cross-section of said laser rod taking in a plane substantially normal to a longitudinal axis of the device does not exceed an outer periphery of each said resonant mirror.
- 29. A hand-held laser device comprising:
a casing having a substantially hollow interior space; a laser emitter within said interior space, said laser emitter formed by at least one exciting lamp and a laser rod spaced from each other, said laser rod having substantially conical configuration; and a source generating a stream of coolant within the interior space.
- 30. The device according to claim 29, wherein a resonant mirror formed with a central opening is attached to a base of said substantially conically shaped rod.
- 31. The device according to claim 29, wherein a resonant mirror formed with a central opening is spaced from a base of said substantially conically shaped rod.
Parent Case Info
[0001] This non-provisional application claims benefit under 35 USC 119(e) of U.S. Provisional application Ser. No. 60/307,628 filed by Valentin A. Gruzdev and Pavel V. Efremkin on Jul. 25, 2001.
Provisional Applications (1)
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Number |
Date |
Country |
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60307628 |
Jul 2001 |
US |