GB519488A - Improvements in or relating to the projection of stereoscopic pictures - Google Patents

Improvements in or relating to the projection of stereoscopic pictures

Info

Publication number
GB519488A
GB519488A GB30275/38A GB3027538A GB519488A GB 519488 A GB519488 A GB 519488A GB 30275/38 A GB30275/38 A GB 30275/38A GB 3027538 A GB3027538 A GB 3027538A GB 519488 A GB519488 A GB 519488A
Authority
GB
United Kingdom
Prior art keywords
pictures
light
wiemer
spectacles
analysing
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
GB30275/38A
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.)
HUGO SCHNEIDER AG
Original Assignee
HUGO SCHNEIDER 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 HUGO SCHNEIDER AG filed Critical HUGO SCHNEIDER AG
Publication of GB519488A publication Critical patent/GB519488A/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
    • G03B35/00—Stereoscopic photography
    • G03B35/18—Stereoscopic photography by simultaneous viewing
    • G03B35/20—Stereoscopic photography by simultaneous viewing using two or more projectors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

Abstract

519,488. Stereoscopic projection WIEMER, K., WIEMER, P., and SCHNEIDER AKT.-GES., H. Oct. 19, 1938, No. 30275. Convention date, Oct. 19, 1937. [Class 97 (i)] Circularly polarized light is used for projecting the components of stereoscopic pairs of pictures; the pictures are viewed through analysing spectacles. As shown in Fig. 1, light from a source 1 and condenser 2 passes through a Wollaston prisin 3 or other doubly-refracting medium, and the ordinary and extraordinary rays, 4, 5 respectively, pass through prisms 6, separate images on the film 7, and separate projection lenses 8. Circularly polarizing media producing rotations in opposite senses are provided in the .beams 4, 5. Fig. 2 shows a system for using both ordinary and extraordinary rays for projecting a single image, the whole system being duplicated for the second image. The light from a source 1 is divided by a Nicol prism 3, the emergent path being rendered parallel by a mirror 9, and their planes of polarization being turned by media in vessels 10, 11 so as to be identical; a Fresnel parallelepiped 12 produces circular polarization, the senses being, opposite in the two systems. A doubly-refracting lens may be used as plane polarizing means. The analysing spectacles have panes each comprising a polarizing layer and a quarter wave plate such as a sheet of material having the Registered Trade Mark " Cellophane held to it mechanically or by cement; each pane extingishes one of the two images viewed.
GB30275/38A 1937-10-19 1938-10-19 Improvements in or relating to the projection of stereoscopic pictures Expired GB519488A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE519488X 1937-10-19

Publications (1)

Publication Number Publication Date
GB519488A true GB519488A (en) 1940-03-28

Family

ID=6550531

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30275/38A Expired GB519488A (en) 1937-10-19 1938-10-19 Improvements in or relating to the projection of stereoscopic pictures

Country Status (1)

Country Link
GB (1) GB519488A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2415550A (en) * 1945-03-09 1947-02-11 Yarosh Stanley Stereoscopic effect motion-picture film device
US2437061A (en) * 1945-09-07 1948-03-02 Wright Edwin Herbert Projection of stereoscopic images
US2665335A (en) * 1948-08-03 1954-01-05 Radio Ind Stereoscopic television method and apparatus
US2669901A (en) * 1950-07-11 1954-02-23 Rehorn Miles Parker Optical system adaptable to stereoscopic projectors, viewers, and television
US2811077A (en) * 1951-08-21 1957-10-29 Pola Lux Ges Fur Blendschutz U Stereo projection apparatus
GB2206703A (en) * 1987-06-22 1989-01-11 Aspex Ltd Reproduction of cinematographic images

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2415550A (en) * 1945-03-09 1947-02-11 Yarosh Stanley Stereoscopic effect motion-picture film device
US2437061A (en) * 1945-09-07 1948-03-02 Wright Edwin Herbert Projection of stereoscopic images
US2665335A (en) * 1948-08-03 1954-01-05 Radio Ind Stereoscopic television method and apparatus
US2669901A (en) * 1950-07-11 1954-02-23 Rehorn Miles Parker Optical system adaptable to stereoscopic projectors, viewers, and television
US2811077A (en) * 1951-08-21 1957-10-29 Pola Lux Ges Fur Blendschutz U Stereo projection apparatus
GB2206703A (en) * 1987-06-22 1989-01-11 Aspex Ltd Reproduction of cinematographic images

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