Anamorphic lens system increasing the field of view for the visu

Details Anamorphic lens system increasing the field of view for the visu Anamorphic lens system increasing the field of view for the visu

1983-03-03

1985-11-26

Corbin, John K.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

351 41, G02B 2702, G02B 1300

Patent

active

045551642

ABSTRACT:
There is disclosed an anamorphic lens system for increasing the field of view for patients or persons having tunnel vision. The lens assembly consists of a plano-concave cylindrical lens separated from a plano-convex cylindrical lens. The lens system is an anamorphic lens system which minifies in one meridian or axis such as the X axis while keeping objects at the same size in the other meridian such as the Y axis. In utilizing the system, a handicapped patient is now able to maintain almost their original visual acuity in the vertical plane while the system produces minification in the horizontal plane. By using such a technique, the patient retains almost full visual acuity, experiences a substantial increase in his field of vision, and furthermore, does not lose the ability to judge depth.

REFERENCES:
patent: 3002427 (1961-10-01), Schafter et al.
patent: 3511557 (1970-05-01), Lindstedt et al.
patent: 3822932 (1974-07-01), Humphrey
patent: 4364645 (1982-12-01), Feinbloom

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