GB1291959A - Improvements relating to projection systems - Google Patents

Improvements relating to projection systems

Info

Publication number
GB1291959A
GB1291959A GB1837970A GB1837970A GB1291959A GB 1291959 A GB1291959 A GB 1291959A GB 1837970 A GB1837970 A GB 1837970A GB 1837970 A GB1837970 A GB 1837970A GB 1291959 A GB1291959 A GB 1291959A
Authority
GB
United Kingdom
Prior art keywords
screen
image
small
camera
april
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
GB1837970A
Inventor
Jan Louis Wulff Jacobsen
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1837970A priority Critical patent/GB1291959A/en
Publication of GB1291959A publication Critical patent/GB1291959A/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
    • G03B15/00—Special procedures for taking photographs; Apparatus therefor
    • G03B15/08—Trick photography
    • G03B15/12—Trick photography using mirrors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Stereoscopic And Panoramic Photography (AREA)
  • Overhead Projectors And Projection Screens (AREA)
  • Projection Apparatus (AREA)

Abstract

1291959 Front projection; composite photography O K KOLB 19 April 1971 [17 April 1970] 18379/70 Headings G2A, G2C A front projection arrangement, particularly for where the foreground action is to be small in relation to the total image, includes a projector 2, beam splitter 4, masts 10,14 reflex reflecting screens 12,16 and camera 18. Masks 10,14 black out complementary positions of the projected image. By this arrangement when the foreground action is to occupy a small area of the composite image recorded by the camera 18 only the small screen 12 is required to indicate the position of the foreground action relative to the whole image and the stage screen 16 need only be large enough to provide the immediate background, so obviating the need for a much larger area of a single screen. A lens 6 may be provided to condense the image onto the small screen 12 and the screen 12 is preferably movable as indicated to permit the camera 18 to focus simultaneously on both screens 12,16.
GB1837970A 1970-04-17 1970-04-17 Improvements relating to projection systems Expired GB1291959A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1837970A GB1291959A (en) 1970-04-17 1970-04-17 Improvements relating to projection systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1837970A GB1291959A (en) 1970-04-17 1970-04-17 Improvements relating to projection systems

Publications (1)

Publication Number Publication Date
GB1291959A true GB1291959A (en) 1972-10-04

Family

ID=10111455

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1837970A Expired GB1291959A (en) 1970-04-17 1970-04-17 Improvements relating to projection systems

Country Status (1)

Country Link
GB (1) GB1291959A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0148876A1 (en) * 1983-06-03 1985-07-24 GENTLEMAN, Wally Composite process cinematography system and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0148876A1 (en) * 1983-06-03 1985-07-24 GENTLEMAN, Wally Composite process cinematography system and method
EP0148876A4 (en) * 1983-06-03 1985-10-17 Wally Gentleman Composite process cinematography system and method.

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees