Process for forming a multifocal lens and lens formed thereby

Details Process for forming a multifocal lens and lens formed thereby Process for forming a multifocal lens and lens formed thereby

1979-01-24

1981-03-03

Clark, Conrad J.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

65 37, 351177, C03B 1108, C03B 2322, G02C 706

Patent

active

042537460

ABSTRACT:
A multifocal lens is formed by positioning ground and polished elongate lens portions together with the longitudinal edges thereof abutting each other, and fusing the abutting edges together.

REFERENCES:
patent: 1360727 (1920-11-01), Cross
patent: 3577690 (1971-05-01), Catron

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