GB745836A - Improvements in and relating to motion pictures - Google Patents

Improvements in and relating to motion pictures

Info

Publication number
GB745836A
GB745836A GB1183153A GB1183153A GB745836A GB 745836 A GB745836 A GB 745836A GB 1183153 A GB1183153 A GB 1183153A GB 1183153 A GB1183153 A GB 1183153A GB 745836 A GB745836 A GB 745836A
Authority
GB
United Kingdom
Prior art keywords
relating
april
motion pictures
picture
image
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
GB1183153A
Inventor
Arthur Bowen
Alfred Pourtales Castellain
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co Ltd
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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Priority to GB1183153A priority Critical patent/GB745836A/en
Publication of GB745836A publication Critical patent/GB745836A/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
    • G03B21/13—Projectors for producing special effects at the edges of picture, e.g. blurring
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)
  • Stereoscopic And Panoramic Photography (AREA)

Abstract

745,836. Projection screens. BRITISH THOMSON-HOUSTON CO., Ltd. April 23, 1954 [April 29, 1953], No. 11831/53. Class 97 (1). To provide an illuminated surround to a projected picture, reflecting surfaces, such as cylindrically concave reflectors 3, 4, 5 adjacent the picture margins, are provided to receive light from the projected image and to redirect it on to the screen area surrounding the image. Specification 727,696 is referred to.
GB1183153A 1953-04-29 1953-04-29 Improvements in and relating to motion pictures Expired GB745836A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1183153A GB745836A (en) 1953-04-29 1953-04-29 Improvements in and relating to motion pictures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1183153A GB745836A (en) 1953-04-29 1953-04-29 Improvements in and relating to motion pictures

Publications (1)

Publication Number Publication Date
GB745836A true GB745836A (en) 1956-03-07

Family

ID=9993518

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1183153A Expired GB745836A (en) 1953-04-29 1953-04-29 Improvements in and relating to motion pictures

Country Status (1)

Country Link
GB (1) GB745836A (en)

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