A leading polycarbonate
lens (right) shows extreme birefringence throughout the lens, while
the RESOLUTION lens
(left) appears flawless. Tests proved that the birefringence
exhibited in leading polycarbonate lenses had a direct correlation
to the optical quality of the lenses. Birefringence causes the light
to bend and prevents light transmittance, both factors severely compromise
the optics of the lens. The obvious uneven and mottled lens surface
directly correlates to the extreme resolution loss and wide power
variations revealed in the other lab tests.
This test, along
with other lab tests that measured resolution loss and power accuracy,
revealed that there was also a direct connection with the stresses
created by the injection molded process (and revealed by the polarized
film) and the optical quality of the lenses.
New RESOLUTION
lenses are
manufactured by a new Extrusion Compression Molding
process (ECM-9™) which
eliminates all material stress and results in a virtually flawless
less – no birefringence, near nonexistent resolution loss and
power accuracy to .01 throughout the entire lens.
RESOLUTION lenses
are the only polycarbonate lenses on the market that provide precise
optics throughout the entire lens area. Click on the links below for
other lab test results.
Resolution
Loss Lab Tests
Power
Variation Lab Tests
