3-D viewers made from sheet materials

Details 3-D viewers made from sheet materials 3-D viewers made from sheet materials

1990-01-24

1991-03-19

Henry, Jon W.

350133, G02B 2704, G02B 2722, G02B 702

Patent

active

050005430

ABSTRACT:
A 3-D viewer is created by folding paper such as card stock in a predetermined manner. A first section of the view carries a pair of 3-D lenses and a second section, which is held normal to the plane of the first section when the viewer is in use, has a longitudinal extent substantially equal to the focal length of the lenses. In a first embodiment, a third section is foldably connected to the second section, carries at least one 3-D scene, and is held generally paralle to the first section when the scenes are viewed. Other embodiments add additional sections which are foldably secured to the second or third section, a card holding member and pocket members for holding additonal 3-D scenes. Another embodiment includes slotted card members that are releasably attachable to a card holder member. A lens structure also protects the lens from abrasion and holds the lens in position so that the viewer can be mailed without being damaged.

REFERENCES:
patent: 2616333 (1952-11-01), Tinker
patent: 2986830 (1961-06-01), Underberg et al.
patent: 3847467 (1974-11-01), Lewis
patent: 4268111 (1981-05-01), Green et al.
patent: 4889419 (1989-12-01), Kite

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