Producing optical filter product such as dielectric multi-layer filter and reflective mirrors by vacuum deposition. Consistent process from optical design, substrate arrangement, polishing and coating. Offering stable and excellent quality product from prototype sample from R&D to mass production.

Making use of know-how of coating layer design for many years, Propose various membrane controls of the wavelengths to meet customer’s coating design in wide variety of markets.

IAD (Ion Assist Deposition) method is used for TOYOTEC vacuum deposition. Take advantage of perfectly automatic vacuum deposition machines, variable masks, control devices of layer thickness, analysis devices of polarization, providing various multi-layer products with high performance and quality.