US1024613A - Eritz berger - Google Patents

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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
  • G02B30/37—Collapsible stereoscopes

Definitions

• the present invention relates to a folding stereoscope which may, when folded up, be sent away in form of a letter or the like without requiring any further packm
• Ihe invention consists essentially in that the folding plates-which when in position of use-form the casing and the picture holders of the apparatus, are provided with slotted ears, which "when in position of use engage in corresponding slots in the other plates and are held by means of hooks or the like provided on the latter, so that the apparatus may be easily and without need of any other devices such as springs or detachable parts, built up into a rigid body.
• Figure 1 shows the new stereoscope in position of use in a perspective view.
• Fig. 2 shows the apparatus opened out
• Fig. 3 shows the apparatus folded up, in which condition it may be sent away in form of a letter or the like, without requiring any fur ther packing.
• the new apparatus consists of the plates a, b, 0 and (Z, which are hinged together.
• the plates (.7. have slotted ears f, which when the apparatus is fitted up for use (Fig. 1) engage in corresponding slots 9 in plate a and are there held by pivotally secured hooks it provided on the back of said plate.
• To plate a is further secured a plate 2', the two wings j of which may be turned up. These wings have ears is which,
• the wings j of plate 2' serve both for stiifening the apparatus when in position of use and as partitions between the pictures. For utilizing the wings j at the same time for holding the pictures, they are provided with slots q into which the pictures are inserted at different distances from the lenses according to the strength of the observers eyes.
• covers 1 are pivotally arranged on plate I).
• the several plates of which the apparatus is composed may be made of cardboard, leather, celluloid or any other suitable material.
• the outer surfaces of the'apparatus may be used for advertisements or for private or business communications.
• a folding stereoscope comprising plates hinged together, some of these plates being provided with slotted ears adapted to engage in corresponding slots in other ones of said plates and thereby hold the apparatus in position of use, hooks pivoted to the other or second of said plates, said hooks being adapted to secure said slotted ears of the first plates in said slots of the second plates, and two wings hinged to the second plates, said wings being adapted to act both as partitions between the pictures and as holders for the same.

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• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Optics & Photonics (AREA)
• Prostheses (AREA)
• Materials For Medical Uses (AREA)

Description

Publications (1)

Family

ID=3092909

Family Applications (1)

Country Status (1)

Cited By (4)

• 0
  • US US1024613D patent/US1024613A/en not_active Expired - Lifetime

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