The Alexandrite/Diode High Light Transmission is a laser safety lens made of blue BG38 glass filter. It is cut and mounted into model 600 frame. This is an aviator style metal frame with black side shields.
OD>2+ from 632nm
OD>3+ from 650-690nm
OD>6+ from 690-1000nm
VLT = 55.5%
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