FR871207A - Cinematographic projection apparatus comprising an arc lamp and a high pressure mercury vapor lamp for alternate use - Google Patents

Cinematographic projection apparatus comprising an arc lamp and a high pressure mercury vapor lamp for alternate use

Info

Publication number
FR871207A
FR871207A FR871207DA FR871207A FR 871207 A FR871207 A FR 871207A FR 871207D A FR871207D A FR 871207DA FR 871207 A FR871207 A FR 871207A
Authority
FR
France
Prior art keywords
lamp
high pressure
pressure mercury
projection apparatus
mercury vapor
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
Other languages
French (fr)
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.)
Koninklijke Philips NV
Original Assignee
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 Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR871207A publication Critical patent/FR871207A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G03B21/20—Lamp housings
    • G03B21/2006—Lamp housings characterised by the light source
    • G03B21/2026—Gas discharge type light sources, e.g. arcs

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR871207D 1939-12-02 1941-03-31 Cinematographic projection apparatus comprising an arc lamp and a high pressure mercury vapor lamp for alternate use Expired FR871207A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL871207X 1939-12-02

Publications (1)

Publication Number Publication Date
FR871207A true FR871207A (en) 1942-04-13

Family

ID=19851206

Family Applications (1)

Application Number Title Priority Date Filing Date
FR871207D Expired FR871207A (en) 1939-12-02 1941-03-31 Cinematographic projection apparatus comprising an arc lamp and a high pressure mercury vapor lamp for alternate use

Country Status (1)

Country Link
FR (1) FR871207A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8790453B2 (en) 2009-11-24 2014-07-29 Alstom Technology Ltd Advanced intercooling and recycling in CO2 absorption

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8790453B2 (en) 2009-11-24 2014-07-29 Alstom Technology Ltd Advanced intercooling and recycling in CO2 absorption

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