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GB884420A - Improvements in or relating to methods for the simultaneous photographic recording of different phenomena as superimposed images - Google Patents

Improvements in or relating to methods for the simultaneous photographic recording of different phenomena as superimposed images

Info

Publication number
GB884420A
GB884420A GB3080558A GB3080558A GB884420A GB 884420 A GB884420 A GB 884420A GB 3080558 A GB3080558 A GB 3080558A GB 3080558 A GB3080558 A GB 3080558A GB 884420 A GB884420 A GB 884420A
Authority
GB
United Kingdom
Prior art keywords
scene
display
light
images
mirror
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
GB3080558A
Inventor
Derek Raymond Burrows
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.)
Bush and Rank Cintel Ltd
Original Assignee
Bush and Rank Cintel 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 Bush and Rank Cintel Ltd filed Critical Bush and Rank Cintel Ltd
Priority to GB3080558A priority Critical patent/GB884420A/en
Publication of GB884420A publication Critical patent/GB884420A/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)
  • Projection-Type Copiers In General (AREA)

Abstract

884,420. Composite photography. BUSH & RANK CINTEL Ltd. Sept. 24, 1959 [Sept. 26, 1958], No. 30805/58. Drawings to Specification. Class 98(2). In order to enable the satisfactory production of a record of a naturally illuminated scene and an artificially illuminated display by simultaneous recording of images of the scene and display despite large differences between their levels of illumination, the recording medium employed is a photographic film comprising separate layers sensitive to light in respective non-overlapping spectral regions and the optical path for the naturally illuminated scene intrudes colour-selective means so that the images of scene and display are formed by light of different spectral conposition so as each to expose only one layer, whereby by subjecting the two layers to separate developing procedures satisfactory images of both scene and display may be obtained. Typically a bipack film comprising separate emulsion layers one sensitive to red and the other to green light is exposed simultaneously to a naturally illuminated scene and to a cathode ray tube display giving a green trace image, the two images being combined by a semi-transparent dichroic mirror which reflects green light from the display and transmits red light from the scene, a minus green filter being placed in the direct light path from the scene to the mirror. If desired a. filter could also be disposed between the mirror and the cathode ray tube.
GB3080558A 1958-09-26 1958-09-26 Improvements in or relating to methods for the simultaneous photographic recording of different phenomena as superimposed images Expired GB884420A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3080558A GB884420A (en) 1958-09-26 1958-09-26 Improvements in or relating to methods for the simultaneous photographic recording of different phenomena as superimposed images

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3080558A GB884420A (en) 1958-09-26 1958-09-26 Improvements in or relating to methods for the simultaneous photographic recording of different phenomena as superimposed images

Publications (1)

Publication Number Publication Date
GB884420A true GB884420A (en) 1961-12-13

Family

ID=10313411

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3080558A Expired GB884420A (en) 1958-09-26 1958-09-26 Improvements in or relating to methods for the simultaneous photographic recording of different phenomena as superimposed images

Country Status (1)

Country Link
GB (1) GB884420A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2296784A (en) * 1995-01-07 1996-07-10 Debden Security Printing Ltd A method of forming a composite image & a lamina for use in the method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2296784A (en) * 1995-01-07 1996-07-10 Debden Security Printing Ltd A method of forming a composite image & a lamina for use in the method
GB2296785A (en) * 1995-01-07 1996-07-10 Debden Security Printing Ltd A method of forming a composite image and a photosensitive material for use therein
GB2296785B (en) * 1995-01-07 1997-04-09 Debden Security Printing Ltd A method of making a security element for a document of value

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