other vision care rhp-2 blocking red laser glasses 600-700nm laser 635nm 660nm 694nm etc safety goggles

multi-wavelength laser goggles that can be used on several several lasers with different wavelengths . . common sunglasses even cannot block any laser at all because of the characters of a laser of high concentration in space and time. he filter of laser safety glasses has special absorber component to reduce the laser energy in geometry times..syi