FR2274942A1 - Projecteur de diapositives perfectionne a objectif a focale variable - Google Patents

Projecteur de diapositives perfectionne a objectif a focale variable

Info

Publication number
FR2274942A1
FR2274942A1 FR7400392A FR7400392A FR2274942A1 FR 2274942 A1 FR2274942 A1 FR 2274942A1 FR 7400392 A FR7400392 A FR 7400392A FR 7400392 A FR7400392 A FR 7400392A FR 2274942 A1 FR2274942 A1 FR 2274942A1
Authority
FR
France
Prior art keywords
slide
optical axis
projector
plane
focal length
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.)
Granted
Application number
FR7400392A
Other languages
English (en)
French (fr)
Other versions
FR2274942B1 (enExample
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.)
Kodak Pathe SA
Original Assignee
Kodak Pathe SA
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 Kodak Pathe SA filed Critical Kodak Pathe SA
Priority to FR7400392A priority Critical patent/FR2274942A1/fr
Publication of FR2274942A1 publication Critical patent/FR2274942A1/fr
Application granted granted Critical
Publication of FR2274942B1 publication Critical patent/FR2274942B1/fr
Granted 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
    • G03B23/00—Devices for changing pictures in viewing apparatus or projectors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)
FR7400392A 1974-01-07 1974-01-07 Projecteur de diapositives perfectionne a objectif a focale variable Granted FR2274942A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7400392A FR2274942A1 (fr) 1974-01-07 1974-01-07 Projecteur de diapositives perfectionne a objectif a focale variable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7400392A FR2274942A1 (fr) 1974-01-07 1974-01-07 Projecteur de diapositives perfectionne a objectif a focale variable

Publications (2)

Publication Number Publication Date
FR2274942A1 true FR2274942A1 (fr) 1976-01-09
FR2274942B1 FR2274942B1 (enExample) 1977-06-10

Family

ID=9133143

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7400392A Granted FR2274942A1 (fr) 1974-01-07 1974-01-07 Projecteur de diapositives perfectionne a objectif a focale variable

Country Status (1)

Country Link
FR (1) FR2274942A1 (enExample)

Also Published As

Publication number Publication date
FR2274942B1 (enExample) 1977-06-10

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Legal Events

Date Code Title Description
ST Notification of lapse