Diving mask with auxiliary lens

Details Diving mask with auxiliary lens Diving mask with auxiliary lens

1986-06-06

1988-01-05

Arnold, Bruce Y.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Floating or underwater type

350286, G02B 504, G02C 714

Patent

active

047172495

ABSTRACT:
A prism lens attached to the window of a diving mask at a position laterally removed from the normal line of sight through the window and having a planar surface (22) and a spaced spherical surface (24) with a chord (26) of the spherical surface (24) disposed at an acute angle relative to the planar surface (22) for magnifying and bending the line of sight through the prism lens means (20) to allow viewing therethrough at an acute angle between the eye and prism lens means (20).

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