Peripheral vision limiting visor

Details Peripheral vision limiting visor Peripheral vision limiting visor

1996-01-02

1997-08-26

Dang, Hung X.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

2 12, 2 13, G02C 100, A61F 900

Patent

active

056615345

ABSTRACT:
Vision limiters including an upper sheet assembly and two side sheet assemblies to be positioned on a head for framing the vision path of an individual. A bottom sheet assembly may also be employed, thereby creating a rectangular or an oval rectangular vision path which restricts peripheral views. An extension sheet or sheets are positioned within a guideway or slot in one or more of the sheet assemblies or are slidably attached to the shield, or are pivotally mounted thereto such that extended positions as well as retracted positions may be employed to further limit peripheral view. Partial toothed surfaces provide some resistance to sliding of the sheet extensions which may be positioned in guideways or slots. A hanger system such as ear pieces and a nose piece or clips hold the device in place to frame a direct view.

REFERENCES:
patent: D238831 (1976-02-01), Helfand
patent: 4106119 (1978-08-01), Taupin
patent: 4793006 (1988-12-01), Dawson

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