Diver's mask with fixed mirrorized surfaces

Details Diver's mask with fixed mirrorized surfaces Diver's mask with fixed mirrorized surfaces

1998-06-01

1999-06-22

Mai, Huy

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

With rear-view reflectors

351 43, 2447, G02C 714

Patent

active

059147660

ABSTRACT:
A diving mask with supplemental lateral and posterior fields of vision. A pair of compartments which extend outwardly from opposite sides of the diving mask have fixed mirrorized surfaces which reflect light rays from objects at the sides and rear of the mask into a diver's view. In a first aspect of the invention, the fixed mirrorized surfaces are parallel to a front portion of the mask. In a second aspect of the invention, the fixed mirrorized surfaces extend outwardly and rearwardly from the opposite sides of the mask. In a third aspect of the invention, the fixed mirrorized surfaces extend outwardly and forwardly from the side portions of the mask. The compartments are preferably separately sealed to preserve the reflectance of the mirrorized surfaces, prevent fogging and avoid the necessity of cleaning.

REFERENCES:
patent: 5170190 (1992-12-01), Berke
patent: 5216454 (1993-06-01), Berke
patent: 5420649 (1995-05-01), Lewis

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