Protective Eyewear - US Safety

Lens Tints
CLEAR—general purpose lenses that provides maximum visibility and protects against harmful levels of UV
radiation.
GRAY—protects eyes from excessive glare and high levels of hazardous visible light and UV radiation without
distorting color perception, most popular sunwear shade.
GREEN—provides protection from excessive glare and harmful UV radiation; green tint provides attractive
aesthetic alternative.
AMBER/YELLOW—provides high absorption of blue in the spectrum, reducing the diffused reflected light from
haze, thus enhancing object contrast and protects against harmful levels of UV radiation. Ideal for low light
environments.
INDOOR/OUTDOOR— a light silver mirror coating over a clear substrate to reduce glare and visible light
transmission and protects against harmful levels of UV radiation. Ideal when moving from bright to dark
environments.
BLUE MIRROR—mirrored surface reduces glare and reflects heat. Gray colored substrate behind the mirror also
reduces glare without effecting color recognition. Recommended for outdoor use where excessive levels of UV are
present.; especially around water, sand and snow.
BLUE AMBER AND/OR YELLOW AMBER MIRROR—mirrored surface serves to both reduce surface glare and
reflect heat. The substrate is a yellow-orange material that blocks blue-light and enhances the contrast for colored
objects. These lenses are recommended for outdoor use where excessive levels of UV are present.
INFRA-RED—protect the eyes from harmful forms of spectral emissions inherent in metal working and welding
operations: special absorptive quality protects against excessive UV which can cause welder’s flash as well as
excessive infra-red radiant energy.
Transmittance Requirements for Clear Lenses
and General-Purpose Filters
Maximum
Effective Maximum
Luminous Transmittance Far-Ultraviolet Infrared
Average Average
Shade Maximum Nominal Minimum Transmittance Transmittance
Number % % % %
CLEAR 100 ---- 85 ---- ----
1.5 67 61.45 55 0.1 25
1.7 55 50.1 43 0.1 20
2.0 43 37.3 29 0.1 15
2.5 29 22.8 18.0 0.1 12
3.0 18.0 13.9 8.50 0.07 9.0
4 8.50 5.18 3.16 0.04 5.0
5 3.16 1.93 1.18 0.02 2.5
6 1.18 0.72 0.44 0.01 1.5
7 0.44 0.27 0.164 0.007 1.3
8 0.164 0.100 0.061 0.004 1.0
9 0.061 0.037 0.023 0.002 0.8
10 0.023 0.0139 0.0085 0.001 0.6
11 0.0085 0.0052 0.0032 0.0007 0.5
12 0.0032 0.0019 0.0012 0.0004 0.5
13 0.0012 0.00072 0.00044 0.0002 0.4
14 0.00044 0.00027 0.00016 0.0001 0.3
U.S.SAFETY
22
800-821-5218 800-252-5002 info@ussafety.com