FR548427A - Condensateur aplanétique destiné aux appareils de projection - Google Patents

Condensateur aplanétique destiné aux appareils de projection

Info

Publication number
FR548427A
FR548427A FR548427DA FR548427A FR 548427 A FR548427 A FR 548427A FR 548427D A FR548427D A FR 548427DA FR 548427 A FR548427 A FR 548427A
Authority
FR
France
Prior art keywords
aplanatic
capacitor
projection devices
projection
devices
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
English (en)
Inventor
Jean-Baptiste-August Tauleigne
Gaston Mazo
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 filed Critical
Application granted granted Critical
Publication of FR548427A publication Critical patent/FR548427A/fr
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
    • G03B21/208—Homogenising, shaping of the illumination light

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR548427D 1921-05-28 1921-05-28 Condensateur aplanétique destiné aux appareils de projection Expired FR548427A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR548427T 1921-05-28

Publications (1)

Publication Number Publication Date
FR548427A true FR548427A (fr) 1923-01-15

Family

ID=8934818

Family Applications (1)

Application Number Title Priority Date Filing Date
FR548427D Expired FR548427A (fr) 1921-05-28 1921-05-28 Condensateur aplanétique destiné aux appareils de projection

Country Status (1)

Country Link
FR (1) FR548427A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3036498A (en) * 1958-08-26 1962-05-29 Sylvania Electric Prod Lens for projection and photography
US4958913A (en) * 1988-10-31 1990-09-25 Luxo Lamp Corporation Magnifier lens assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3036498A (en) * 1958-08-26 1962-05-29 Sylvania Electric Prod Lens for projection and photography
US4958913A (en) * 1988-10-31 1990-09-25 Luxo Lamp Corporation Magnifier lens assembly

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