FR1113425A - Document holder viewer - Google Patents

Document holder viewer

Info

Publication number
FR1113425A
FR1113425A FR1113425DA FR1113425A FR 1113425 A FR1113425 A FR 1113425A FR 1113425D A FR1113425D A FR 1113425DA FR 1113425 A FR1113425 A FR 1113425A
Authority
FR
France
Prior art keywords
viewer
document holder
holder
document
holder viewer
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
Other languages
French (fr)
Inventor
Charles Gabriel
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 filed Critical
Application granted granted Critical
Publication of FR1113425A publication Critical patent/FR1113425A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/02—Viewing or reading apparatus
    • G02B27/04—Viewing or reading apparatus having collapsible parts
    • 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
    • G02B30/37—Collapsible stereoscopes

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR1113425D 1954-10-29 1954-10-29 Document holder viewer Expired FR1113425A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1113425T 1954-10-29

Publications (1)

Publication Number Publication Date
FR1113425A true FR1113425A (en) 1956-03-29

Family

ID=9627801

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1113425D Expired FR1113425A (en) 1954-10-29 1954-10-29 Document holder viewer

Country Status (1)

Country Link
FR (1) FR1113425A (en)

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