GB1255402A - Method of and apparatus for cooling heat-radiating articles - Google Patents

Method of and apparatus for cooling heat-radiating articles

Info

Publication number
GB1255402A
GB1255402A GB2358769A GB2358769A GB1255402A GB 1255402 A GB1255402 A GB 1255402A GB 2358769 A GB2358769 A GB 2358769A GB 2358769 A GB2358769 A GB 2358769A GB 1255402 A GB1255402 A GB 1255402A
Authority
GB
United Kingdom
Prior art keywords
gas
laser
pressure
conduit
atmospheres
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2358769A
Inventor
Leonhard Katz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Astro Dynamics Inc
Original Assignee
Astro Dynamics Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Astro Dynamics Inc filed Critical Astro Dynamics Inc
Priority to GB2358769A priority Critical patent/GB1255402A/en
Publication of GB1255402A publication Critical patent/GB1255402A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/02—Constructional details
    • H01S3/04—Arrangements for thermal management
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/09—Processes or apparatus for excitation, e.g. pumping
    • H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
    • H01S3/0915—Processes or apparatus for excitation, e.g. pumping using optical pumping by incoherent light
    • H01S3/092—Processes or apparatus for excitation, e.g. pumping using optical pumping by incoherent light of flash lamp
    • H01S3/093—Processes or apparatus for excitation, e.g. pumping using optical pumping by incoherent light of flash lamp focusing or directing the excitation energy into the active medium

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Lasers (AREA)

Abstract

1,255,402. Cooling electrical components. ASTRO DYNAMICS Inc. 8 May, 1969, No. 23587/69. Heading F4U. [Also in Division H1] A gas cooling system comprises a conduit 2, Fig. 1, filled with a gas having an absolute pressure of at least two atmospheres and extending in a closed loop between the apparatus 1 to be cooled, e.g. a laser, and a heat exchanger 2<SP>1</SP>, 2<SP>11</SP>, the gas being circulated by a blower 8 or by convection. Gas pressures up to 100 atmospheres may be used, the useful range of gas pressure being that in which substantially constant relationships exist between the pressure and the viscosity, the specific heat and the thermal conductivity, Fig. 3 (not shown). According to the Specification a substantial reduction in gas temperature is obtained as compared with operation at atmospheric pressure. Air, nitrogen, helium, hydrogen or oxygen may be used. In a modification, Fig. 4 (not shown), the apparatus to be cooled is in thermal contact with a plate along which a zig-zag portion of the conduit extends. As applied to a laser, Figs. 1 and 2, a gas transparent to the laser radiation circulates between upper and lower reflectors 7, 9 which couple a flash lamp 5 to an active medium rod 3, a window 10 being provided in the conduit for the laser output.
GB2358769A 1969-05-08 1969-05-08 Method of and apparatus for cooling heat-radiating articles Expired GB1255402A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2358769A GB1255402A (en) 1969-05-08 1969-05-08 Method of and apparatus for cooling heat-radiating articles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2358769A GB1255402A (en) 1969-05-08 1969-05-08 Method of and apparatus for cooling heat-radiating articles

Publications (1)

Publication Number Publication Date
GB1255402A true GB1255402A (en) 1971-12-01

Family

ID=10198101

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2358769A Expired GB1255402A (en) 1969-05-08 1969-05-08 Method of and apparatus for cooling heat-radiating articles

Country Status (1)

Country Link
GB (1) GB1255402A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2294358A (en) * 1994-10-20 1996-04-24 Zeiss Stiftung Pumpless fluid cooling circuit for laser

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2294358A (en) * 1994-10-20 1996-04-24 Zeiss Stiftung Pumpless fluid cooling circuit for laser
US5608748A (en) * 1994-10-20 1997-03-04 Carl Zeiss Stiftung Cooling device for a pulsed laser and process for the operation of such a cooling device

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