- Technical data
Single Layer MgF2 Antireflective Coating（SAR）MgF2 is the most widely used thin film material for optical coatings. Though its performance is not outstanding but it represent a significant improvement over an uncoated surface in visible light area.
VAR coatings have the lowest reflectivity in a narrow wavelength band; minimum reflection can be less than 0.1%. VAR are used to target a single wavelength, such as 632.8nm or 532nm, or a single very narrow band of wavelengths, such as laser and communication to decrease optical loss.
Film Coating Line
OTFC-1300 OPTORUN coater advanced from Japan. With 17 cm RF ion source, the IAD is very strong and good for film surface quality and adhesion. Combine the optical and crystal film thickness control system, It is specialized in complex film coating.
Symphony-9 coater made from Tecport, the width of coating chamber is 900mm.Its advantage is Hall Ion Source and CTI-cryogenics pump. Ion source technology can improve the coating's physical and chemical performance, such as hardness, adhesion, high densification, oxygenation and so on.
Coating material is used some high pure metals, dielectrics and semiconductors. Normally the pure of coating material is higher than 99.99%. All of our coating materials are according with RoHS request. Main coating materials we used are:
1) Metal: Au, Ag, Al, Cu, Cr, Ni-Cr
2) Oxides: TiO2, Nb2O5, Ta2O5, ZrO2, HfO2, Gd2O3, Al2O3, SiO2, and some mixture materials (such as H4, M1, M3)
3) Fluorides: MgF2, LaF3
4) Sulfides: ZnS
5) Semiconductors: Si, Ge