GB1484931A - Supply circuit - Google Patents

Supply circuit

Info

Publication number
GB1484931A
GB1484931A GB3998274A GB3998274A GB1484931A GB 1484931 A GB1484931 A GB 1484931A GB 3998274 A GB3998274 A GB 3998274A GB 3998274 A GB3998274 A GB 3998274A GB 1484931 A GB1484931 A GB 1484931A
Authority
GB
United Kingdom
Prior art keywords
supply
operating
laser
direct current
gas discharge
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
GB3998274A
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.)
Xerox Corp
Original Assignee
Xerox Corp
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 Xerox Corp filed Critical Xerox Corp
Priority to GB3998274A priority Critical patent/GB1484931A/en
Publication of GB1484931A publication Critical patent/GB1484931A/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
    • H01S3/09—Processes or apparatus for excitation, e.g. pumping
    • H01S3/097—Processes or apparatus for excitation, e.g. pumping by gas discharge of a gas laser

Landscapes

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

Abstract

1484931 Lasers XEROX CORP 13 Sept 1974 39982/74 Heading H1C In a direct current gas discharge laser which requires a prolonged warming up period before operating at an elevated temperature, the laser is maintained at or near the operating temperature during inoperative periods by substituting a discharge-sustaining A.C. supply for the direct current excitation. The laser 10 may comprise helium-cadmium operating at a temperature of about 240‹ C., the gas discharge electrodes 11, 12 being alternatively connected to a D.C. supply 15 and an A.C. supply 13 by a changeover switch 16, a decoupling condenser 14 being provided. For alternate operating periods the D.C. supply polarity may be reversed.
GB3998274A 1974-09-13 1974-09-13 Supply circuit Expired GB1484931A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3998274A GB1484931A (en) 1974-09-13 1974-09-13 Supply circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3998274A GB1484931A (en) 1974-09-13 1974-09-13 Supply circuit

Publications (1)

Publication Number Publication Date
GB1484931A true GB1484931A (en) 1977-09-08

Family

ID=10412557

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3998274A Expired GB1484931A (en) 1974-09-13 1974-09-13 Supply circuit

Country Status (1)

Country Link
GB (1) GB1484931A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0244159A2 (en) * 1986-04-24 1987-11-04 F. Clark Stephens Switching gas-discharge ion lasers
EP0493028A2 (en) * 1990-12-27 1992-07-01 Matsushita Electric Industrial Co., Ltd. Discharge excitation gas laser device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0244159A2 (en) * 1986-04-24 1987-11-04 F. Clark Stephens Switching gas-discharge ion lasers
EP0244159A3 (en) * 1986-04-24 1989-11-15 F. Clark Stephens Switching gas-discharge ion lasers
EP0493028A2 (en) * 1990-12-27 1992-07-01 Matsushita Electric Industrial Co., Ltd. Discharge excitation gas laser device
EP0493028A3 (en) * 1990-12-27 1992-08-05 Matsushita Electric Industrial Co., Ltd Discharge excitation gas laser device
US5271026A (en) * 1990-12-27 1993-12-14 Matsushita Electric Industrial Co. Ltd. Discharge excitation gas laser device

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19920913