Protecting eyes and instruments from short pulse laser radiation

Details Protecting eyes and instruments from short pulse laser radiation Protecting eyes and instruments from short pulse laser radiation

1998-10-22

2000-02-22

Nguyen, Thong

Optical: systems and elements

Absorption filter

359299, 359634, 351 44, 250216, G02B 522, G02F 129

Patent

active

060287233

ABSTRACT:
A lens system for protecting high gain optical systems (eyes or equipment) from high intensity laser radiation includes a second mirror disposed on an exit lens, a first mirror formed by half silvering the inner surface of a focusing entry lens, and a medium such as sugar water containing aerosol particles of three-micron carbon, which induces ionization that will absorb the incoming laser radiation. One binocular embodiment uses the foregoing medium; a second binocular embodiment uses a solid lens material laden with aerosol particles.

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patent: 5828437 (1998-10-01), Habart et al.
patent: 5831769 (1998-11-01), Smith
David C. Smith, Gas breakdown initialed by laser radiation interaction with aerosols and solid surfaces. Jounal of Applied Physics, vol. 48, Jun. 1977, pp 2217-2225.

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