GB754293A - Improvements in or relating to stereoscopic viewing apparatus - Google Patents

Improvements in or relating to stereoscopic viewing apparatus

Info

Publication number
GB754293A
GB754293A GB24057/54A GB2405754A GB754293A GB 754293 A GB754293 A GB 754293A GB 24057/54 A GB24057/54 A GB 24057/54A GB 2405754 A GB2405754 A GB 2405754A GB 754293 A GB754293 A GB 754293A
Authority
GB
United Kingdom
Prior art keywords
strip
strips
batteries
slide
lid
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
GB24057/54A
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 GB24057/54A priority Critical patent/GB754293A/en
Publication of GB754293A publication Critical patent/GB754293A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
    • G02B30/34—Stereoscopes providing a stereoscopic pair of separated images corresponding to parallactically displaced views of the same object, e.g. 3D slide viewers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Endoscopes (AREA)
  • Microscoopes, Condenser (AREA)

Abstract

754,293. Stereoscopes. ANKERSMIT, K. S. Aug. 18,1954, No. 24057/54. Class 97 (1). In a hand stereoscope for viewing a stereoscopic pair of transparencies mounted on a slide 47, an electric lamp 14, operated by seriesconnected separate cell dry batteries 20, 21 and 22 is provided to illuminate a light-coloured background surface 46 and, a spring contact device is located so as to be closed to complete the lamp circuit by the pressure of an inserted slide. Preferably the lower edge of the slide closes a spring contact device consisting of strips 19 and 34. As shown, single cell dry batteries 20, 21 and 22 are connected in series and supported by spring strip 17 which is sprung into position in case 3 behind member 27. Rightangled strips 16 and 18 connect batteries 20 and 22 to strips 32 and 19 respectively. Stud 36 connects strip 16 to strip 32, passing through but not touching strip 34. Insulating layers 33 and 35 complete the contact switch and lamp mounting which is secured to case 3 by coverplate 45 and screws 37. Members 38 depending from lid 4 co-operate with members 23 to hold the batteries in position and background member 39 and slot defining member 40 are also part of the lid. Binocular viewing lenses, mounted in housing 1, are attached to slides 6 which are moved in opposite directions, to vary the interocular distance, by pins 7a on wheel 7 which meshes with operating whael 8. Housing 1 is movable axially, to focus the lenses, by knob 13 which turns pinion 12 engaging rack 11.
GB24057/54A 1954-08-18 1954-08-18 Improvements in or relating to stereoscopic viewing apparatus Expired GB754293A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB24057/54A GB754293A (en) 1954-08-18 1954-08-18 Improvements in or relating to stereoscopic viewing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB24057/54A GB754293A (en) 1954-08-18 1954-08-18 Improvements in or relating to stereoscopic viewing apparatus

Publications (1)

Publication Number Publication Date
GB754293A true GB754293A (en) 1956-08-08

Family

ID=10205685

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24057/54A Expired GB754293A (en) 1954-08-18 1954-08-18 Improvements in or relating to stereoscopic viewing apparatus

Country Status (1)

Country Link
GB (1) GB754293A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2897816A (en) * 1957-09-13 1959-08-04 Edwin C Williams Stereo training unit
FR2746193A1 (en) * 1996-03-08 1997-09-19 Inaba Minoru Device for selecting screening frames for stereographic images
FR2755251A1 (en) * 1996-10-28 1998-04-30 Inaba Minoru Stereoscopic slide viewer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2897816A (en) * 1957-09-13 1959-08-04 Edwin C Williams Stereo training unit
FR2746193A1 (en) * 1996-03-08 1997-09-19 Inaba Minoru Device for selecting screening frames for stereographic images
FR2755251A1 (en) * 1996-10-28 1998-04-30 Inaba Minoru Stereoscopic slide viewer

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