GB1148222A - Improvements in or relating to lasers - Google Patents

Improvements in or relating to lasers

Info

Publication number
GB1148222A
GB1148222A GB4751566A GB4751566A GB1148222A GB 1148222 A GB1148222 A GB 1148222A GB 4751566 A GB4751566 A GB 4751566A GB 4751566 A GB4751566 A GB 4751566A GB 1148222 A GB1148222 A GB 1148222A
Authority
GB
United Kingdom
Prior art keywords
tube
reflector
support
heat
discharge tube
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
GB4751566A
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.)
Newport Corp USA
Original Assignee
Spectra Physics 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 Spectra Physics Inc filed Critical Spectra Physics Inc
Publication of GB1148222A publication Critical patent/GB1148222A/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
    • H01S3/041—Arrangements for thermal management for gas lasers
    • 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

Landscapes

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

Abstract

1,148,222. Lasers. SPECTRA-PHYSICS Inc. 24 Oct., 1966 [20 Dec., 1965], No. 47515/66. Heading H1C. In order to prevent misalignment of the reflectors of a laser resonant cavity due to varying amounts of heat flowing through the reflector support structure the reflector support is surrounded with a heat conducting member which by-passes the heat flow. In the arrangement of Figs. 8 and 9, a gas discharge tube 2 including the active medium is mounted on a support 19 between prism reflector 4 and a spherical concave reflector 5 maintained in spaced apart relationship by supports 4<SP>1</SP> and 51. The supports 4<SP>1</SP> and 5<SP>1</SP> are mounted on each end of an aluminium tube 7<SP>1</SP> on which the gas discharge tube is mounted by means of insulating support 19. In order to by-pass heat flow from the discharge tube 2 to tube 7<SP>1</SP> this latter tube is surrounded by an aluminium shield 7<SP>11</SP> made up of two halves 7a<SP>11</SP> and 7b<SP>11</SP> joined together by extrusions 11. A cylindrical layer of polyurethane from 12 is placed around tube 7<SP>1</SP> in order to trap the air in insulating gap 10 and prohibit transfer of heat by convection. Pins 16, spaced in quadrature near each end of the structure, are fixedly attached to tube 7<SP>1</SP> and extend radially through openings 17 and 18 in housing member 7a<SP>11</SP>, opening 18 being in the form of a slot to allow movement of the pins 16 rather than deformation of the reflector support. An air gap 21 is provided as shown into which air circulates and convects heat upward from the discharge tube 2. The support 7<SP>1</SP> and shield 7<SP>11</SP> may be in the form of two tubes of rectangular cross-section, Figs. 4, 5 (not shown), and in Figs. 6, 7 (not shown) the reflector supporting member 7<SP>1</SP> may be a solid beam member having a T- shaped cross-section which increases further the shielding effect of tube 7<SP>11</SP>. Fig. 10 shows a cross-section of another form of construction.
GB4751566A 1965-12-20 1966-10-24 Improvements in or relating to lasers Expired GB1148222A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US51481665A 1965-12-20 1965-12-20

Publications (1)

Publication Number Publication Date
GB1148222A true GB1148222A (en) 1969-04-10

Family

ID=24048813

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4751566A Expired GB1148222A (en) 1965-12-20 1966-10-24 Improvements in or relating to lasers

Country Status (4)

Country Link
BE (1) BE691188A (en)
DE (1) DE1564750B1 (en)
FR (1) FR1501292A (en)
GB (1) GB1148222A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT7936206V0 (en) * 1979-11-26 1979-11-26 Selenia Ind Elettroniche RIGID SUPPORT FOR LASER DEVICES
CN102623876A (en) * 2011-12-31 2012-08-01 武汉金运激光股份有限公司 Laser tube seat and laser cutting machine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE624177A (en) * 1961-10-30

Also Published As

Publication number Publication date
DE1564750B1 (en) 1970-10-22
BE691188A (en) 1967-05-16
FR1501292A (en) 1967-11-10

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