Method for marking intraocular lenses

Details Method for marking intraocular lenses Method for marking intraocular lenses

1976-08-26

1977-08-02

Dixon, Harold A.

Radiant energy

Coded record and readers; invisible radiant energy type

250492R, G06K 710

Patent

active

040398277

ABSTRACT:
Nondestructive marking of plastic artificial intraocular lenses for coding purposes. Exposure with ultraviolet radiation of portions of a lens surface forming boundaries of desired coding characters or similar exposure only of areas forming the characters themselves produces a differential in refractive index of the material of the lens wherewith detection and reading of the coding may be accomplished before and/or after intraocular implantation.

REFERENCES:
patent: 2937279 (1960-05-01), Artandi et al.
patent: 3556794 (1971-01-01), Margerum
patent: 3707372 (1972-12-01), Hallman et al.

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