GB1158227A - Electric Lamp having an Improved Prefocus Base, and Method of Prefocusing said Base. - Google Patents

Electric Lamp having an Improved Prefocus Base, and Method of Prefocusing said Base.

Info

Publication number
GB1158227A
GB1158227A GB53531/67A GB5353167A GB1158227A GB 1158227 A GB1158227 A GB 1158227A GB 53531/67 A GB53531/67 A GB 53531/67A GB 5353167 A GB5353167 A GB 5353167A GB 1158227 A GB1158227 A GB 1158227A
Authority
GB
United Kingdom
Prior art keywords
lamp
members
base
secured
wide range
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
GB53531/67A
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.)
CBS Corp
Original Assignee
Westinghouse Electric 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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of GB1158227A publication Critical patent/GB1158227A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/98—Lamps with closely spaced electrodes heated to incandescence by light-emitting discharge, e.g. tungsten arc lamp
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/84—Lamps with discharge constricted by high pressure
    • H01J61/86—Lamps with discharge constricted by high pressure with discharge additionally constricted by close spacing of electrodes, e.g. for optical projection

Landscapes

  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)
  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)

Abstract

1,158,227. Discharge lamps. WESTING- HOUSE ELECTRIC CORP. 24 Nov., 1967 [19 Dec., 1966], No. 53531/67. Heading H1D. A focusing member 23 is mechanically fastened to a body portion 21 of a lamp base B in adjustable eccentric relationship to enable any axial misalignment produced when the body 21 is attached to an elongated sealed end portion 13 of the lamp to be reduced to a specified tolerance. A lamp lead 19 passes through an aperture in the body 21 which is secured to the lamp by a clamp C which compresses a slotted end of the body around wet asbestos tape wound on the arm 13 and then allowed to dry. The member 23, which also forms a socket-engaging member when the lamp is mounted in a fixture in association with a reflector, is mounted eccentrically on a stud protruding from the body 21 and is secured by a lock washer 37 and cap screw 39. Adjustment is effected by supporting the lamp by members 23, 24 in V-shaped notches 46, 47 in members 44, 45 of an optical apparatus (Fig. 3, not shown) and rotating the members 23 and 24 individually while observing the position of the lamp electrodes in the fields of two microscopes mounted at right angles to each other. A wide range of misalignment can be covered by using members 23, 24 with a correspondingly wide range of eccentricities.
GB53531/67A 1966-12-19 1967-11-24 Electric Lamp having an Improved Prefocus Base, and Method of Prefocusing said Base. Expired GB1158227A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US60262966A 1966-12-19 1966-12-19

Publications (1)

Publication Number Publication Date
GB1158227A true GB1158227A (en) 1969-07-16

Family

ID=24412135

Family Applications (1)

Application Number Title Priority Date Filing Date
GB53531/67A Expired GB1158227A (en) 1966-12-19 1967-11-24 Electric Lamp having an Improved Prefocus Base, and Method of Prefocusing said Base.

Country Status (4)

Country Link
US (1) US3454810A (en)
BE (1) BE708152A (en)
DE (1) DE1589418A1 (en)
GB (1) GB1158227A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2379758A1 (en) * 1977-02-04 1978-09-01 Fives Cail Babcock Film projector with air cooling system - has cylindrical finned body with inner coaxial skin defining cooling passageway for closed loop air flow

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE30315F1 (en) * 1973-12-17 1982-08-03 Precision base mercury vapor lamp
DE2917745A1 (en) * 1979-05-02 1980-11-13 Arnold & Richter Kg Halogen-metal vapour gas discharge lamp - has cap designed to safeguard properly orientated mounting of lamp and is used for daylight searchlight(s)
DE2917746A1 (en) * 1979-05-02 1980-11-13 Arnold & Richter Kg Halogen-metal vapour gas discharge lamp - has cap with ribs to form cooling body
DE3136234C2 (en) * 1981-09-12 1985-03-28 W.C. Heraeus Gmbh, 6450 Hanau Discharge lamp with adjusted radiation exit direction
US6648709B2 (en) * 1999-12-28 2003-11-18 Texas Instruments Incorporated Reflector alignment tool for projection illumination systems

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1400227A (en) * 1920-02-19 1921-12-13 Judd L Minick Lamp-focusing device
US2545884A (en) * 1946-01-18 1951-03-20 Gen Electric High-pressure mercury vapor electric discharge lamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2379758A1 (en) * 1977-02-04 1978-09-01 Fives Cail Babcock Film projector with air cooling system - has cylindrical finned body with inner coaxial skin defining cooling passageway for closed loop air flow

Also Published As

Publication number Publication date
DE1589418A1 (en) 1970-04-09
BE708152A (en) 1968-05-02
US3454810A (en) 1969-07-08

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees