Optics & Optical Coatings
Absorptive Neutral Density Filter (Visible ・ Circle)

ND filter is a filter that reduces intensity of the visible light

The f theta lens for CO2 laser is made by a single lens of zinc selenide (ZnSe). These are used in the laser marking systems.
Calcium fluoride (CaF2) is a crystal which has excellent transmission characteristics in a wide wavelength range from ultraviolet ...
Lens adapter to fix a small lens which diameter of φ5mm to φ8mm on the lens holder. The compatible optics diameter of the lens holder is 12.7mm.