Laser protective eyewear

Abstract

Protective eyewear for blocking laser light from entering the eyes of the wearer. The eyewear having a light absorbing filter and an adjacent light-reflecting filter such that laser light will first be reflected by the reflecting layer and then absorbed by the absorbing layer. If the light-reflecting filter is damaged or scratched the light not reflected would be absorbed by the light-absorbing filter. Similarly if the angle of incidence is such that the light-reflecting filter does not reflect the incident light the light-absorbing filter will absorb the light. The light-reflecting filter reflects a majority of the incident light on the protective eyewear and thus protects the light-absorbing filter from reaching its damage threshold. The combination of light absorbing and light reflecting filters provides better protection against light penetration of a specified wavelength than either type of filter working along.

Dependencies are inferred from the claim text.