Laser eye protective devices

Details Laser eye protective devices Laser eye protective devices

1990-09-10

1992-05-26

Sugarman, Scott J.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

359885, G02C 710, G02B 522

Patent

active

051161133

ABSTRACT:
Laser protection is provided by utilizing certain organic polymers with carboxylic or sulfonic acid groups which exchange their protons with cupric or ferrous metal ions to form cupric or ferrous ion-containing polymers. In addition, laser protection is also provided utilizing organic polymers with functional groups which are capable of forming complexes with cupric or ferrous metal ions. The optical absorption of the metal ions (e.g., the transition metal and rare earth ions) in these two types of metal ion-containing polymers are similar to those in absorbing glasses and will provide absorption in the near IR portion of the spectrum (i.e., greater than 680 nm). Thus, metal ion-containing polymers can be as useful for laser eye protection as known absorbing glasses, while providing high visual transmittance and light weight.

REFERENCES:
patent: 3959171 (1976-05-01), Woodcock

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