ANTIBLINDING EYE-GLASSES FOR DRIVERS OF TRANSPORT FACILITIES Russian patent published in 1998 - IPC

FIELD: optical engineering. SUBSTANCE: eye-glasses have frame and lenses arranged in it. Colored lenses are positioned on frame. They may be removed from frame. Provision is made for discrete adjustment of their position in space relative to axis passing through center of pupil of eye-glasses user at angle α = 30-45 deg. to horizontal plane and at angle β = 0 deg. or β ≥ 68 deg. to vertical plane. Size of lenses is selected to satisfy relation l ≥ h/cosβ, where l is distance from lens attachment point to normal set up from pupil center and lying on lower boundary of lens; n is distance from lens attachment point to driver's pupil center. EFFECT: more reliable protection of eyes. 2 dwg