FR1052253A - Index device for image projection devices - Google Patents

Index device for image projection devices

Info

Publication number
FR1052253A
FR1052253A FR1052253DA FR1052253A FR 1052253 A FR1052253 A FR 1052253A FR 1052253D A FR1052253D A FR 1052253DA FR 1052253 A FR1052253 A FR 1052253A
Authority
FR
France
Prior art keywords
image projection
projection devices
index device
index
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
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.)
Agfa Gevaert NV
Original Assignee
Agfa Camera Werk AG
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 Agfa Camera Werk AG filed Critical Agfa Camera Werk AG
Application granted granted Critical
Publication of FR1052253A publication Critical patent/FR1052253A/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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR1052253D 1952-03-10 1952-03-10 Index device for image projection devices Expired FR1052253A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1052253T 1952-03-10

Publications (1)

Publication Number Publication Date
FR1052253A true FR1052253A (en) 1954-01-22

Family

ID=9595179

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1052253D Expired FR1052253A (en) 1952-03-10 1952-03-10 Index device for image projection devices

Country Status (1)

Country Link
FR (1) FR1052253A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3472588A (en) * 1966-08-02 1969-10-14 Lester A Dine Lectern-projector combination

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3472588A (en) * 1966-08-02 1969-10-14 Lester A Dine Lectern-projector combination

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