GB631733A - Improvements in or relating to liquid-cooled optical apparatus - Google Patents

Improvements in or relating to liquid-cooled optical apparatus

Info

Publication number
GB631733A
GB631733A GB25085/46A GB2508546A GB631733A GB 631733 A GB631733 A GB 631733A GB 25085/46 A GB25085/46 A GB 25085/46A GB 2508546 A GB2508546 A GB 2508546A GB 631733 A GB631733 A GB 631733A
Authority
GB
United Kingdom
Prior art keywords
liquid
optical apparatus
relating
metal
reflector
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
GB25085/46A
Other languages
English (en)
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.)
Philips Lamps Ltd
Koninklijke Philips NV
Original Assignee
Philips Lamps Ltd
Philips Gloeilampenfabrieken NV
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 Philips Lamps Ltd, Philips Gloeilampenfabrieken NV filed Critical Philips Lamps Ltd
Publication of GB631733A publication Critical patent/GB631733A/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
    • H01J61/02—Details
    • H01J61/025—Associated optical elements
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/16—Cooling; Preventing overheating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J7/00—Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps
    • H01J7/24—Cooling arrangements; Heating arrangements; Means for circulating gas or vapour within the discharge space

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)
GB25085/46A 1943-03-04 1946-08-22 Improvements in or relating to liquid-cooled optical apparatus Expired GB631733A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL631733X 1943-03-04

Publications (1)

Publication Number Publication Date
GB631733A true GB631733A (en) 1949-11-09

Family

ID=19788755

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25085/46A Expired GB631733A (en) 1943-03-04 1946-08-22 Improvements in or relating to liquid-cooled optical apparatus

Country Status (3)

Country Link
FR (1) FR902364A (enrdf_load_stackoverflow)
GB (1) GB631733A (enrdf_load_stackoverflow)
NL (1) NL58984C (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
NL58984C (enrdf_load_stackoverflow)
FR902364A (fr) 1945-08-29

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