Eye protection device

Details Eye protection device Eye protection device

1996-12-18

1998-10-27

Mai, Huy

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

With antiglare or shading

351 45, 359480, G02C 710, G02B 2702

Patent

active

058284370

ABSTRACT:
A device placed by a support in front of the eyes of a user protects them against luminous aggression, in particular by a laser beam. The device includes a light attenuation system to attenuate the intensity of the received beam by a particular attenuation value. A light amplification system is disposed between the light attenuation system and the eyes of the user to amplify the intensity of the light received from the light attenuation system by a particular amplification value, but such that the intensity of the light transmitted towards the eyes does not exceed a prescribed maximal intensity that is not harmful for the eyes. The attenuation and amplification values are substantially equal.

REFERENCES:
patent: 3519339 (1970-07-01), Hutchinson et al.
patent: 4835796 (1989-06-01), Wiedner
patent: 4909609 (1990-03-01), McDowell
patent: 4978208 (1990-12-01), Hsu et al.
patent: 5377037 (1994-12-01), Branz et al.

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