The Alexandrite/Diode High Light Transmission is a laser safety lens made of blue BG38 glass filter. It is cut and mounted into model 66 frame. The temple bars are fully adjustable, ratcheting up and down and telescoping for a perfect fit. The large lens design ensures maximum safety and visibility.
OD 2+ 632nm
OD 3+ 650-690nm
OD 6+ 690-1000nm
VLT = Excellent (Scroll Down For Full Specifications)