FR421659A - Switch system for projections - Google Patents

Switch system for projections

Info

Publication number
FR421659A
FR421659A FR421659DA FR421659A FR 421659 A FR421659 A FR 421659A FR 421659D A FR421659D A FR 421659DA FR 421659 A FR421659 A FR 421659A
Authority
FR
France
Prior art keywords
projections
switch system
switch
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)
Inventor
Charles-Francois Dussaud
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.)
CHARLES-FRANCOIS DUSSAUD
Original Assignee
CHARLES-FRANCOIS DUSSAUD
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 CHARLES-FRANCOIS DUSSAUD filed Critical CHARLES-FRANCOIS DUSSAUD
Application granted granted Critical
Publication of FR421659A publication Critical patent/FR421659A/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
    • G03B21/32—Details specially adapted for motion-picture projection
    • G03B21/40—Eliminating or reducing effect of flicker

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR421659D 1910-10-21 1910-10-21 Switch system for projections Expired FR421659A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR421659T 1910-10-21

Publications (1)

Publication Number Publication Date
FR421659A true FR421659A (en) 1911-02-28

Family

ID=1464689

Family Applications (1)

Application Number Title Priority Date Filing Date
FR421659D Expired FR421659A (en) 1910-10-21 1910-10-21 Switch system for projections

Country Status (1)

Country Link
FR (1) FR421659A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2605673A (en) * 1950-02-17 1952-08-05 Mitchell Camera Corp Framing light and control for motion-picture machines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2605673A (en) * 1950-02-17 1952-08-05 Mitchell Camera Corp Framing light and control for motion-picture machines

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