Dichroic (color separation) Coatings

Reynard Corporation provides a dichroic coating for commercial, aerospace and military applications. Dichroic filters are sometimes known as color separation filters because their purpose is to separate incoming visible light into separate colors or into beams of different wavelengths. Dichroic coatings achieve this color or wavelength separation with a much higher degree of accuracy than conventional filters.

Applications:

Applications of dichroic filters or color separation filters include color correction and light balancing, and they are found in architectural, studio and  theatrical lighting, color TV or camcorder cameras, automated color  sorting systems, color enlargers and color projectors.

Process:

Our dichroic coatings are applied in a vacuum deposition process. The application of the thin film dichroic coating in layers of varying number and thickness determine the precise wavelengths that are separated or passed through. 

Available substrates include:

• Alon
• BK-7 (borosilicate crown glass)
• Calcium Fluoride (CaF2)
• Fused Silica
• Germanium (GE)
• KRS5 ( Thallium Bromo-Iodide)
• Sapphire
• Magnesium Fluoride (MgF2)
• Silicon (Si)
• Zinc Selenide (ZnSe)
• Zinc Sulfide (ZnS)
• Or as provided by the customer.

Coating materials include:

• Copper (Cu)
• Gold
• Hafnium Oxide (HfO2)
• ITO (Indium Tin Oxide)
• Magnesium Oxide (MgO)
• Nickel (Ni)
• Silicon Monoxide (SiO)
• Silver
• Titanium Dioxide (TiO2)
• Tantalum Oxide (Ta2O5)
• Zirconium Oxide (ZrO2)
• And many more…

Custom Dichroic Coating Services or Stock Dichroic Filters:

Our dichroic coatings can be engineered and customized for your particular application, and of-course we also have one of the largest and most comprehensive selection of standard and stock precision optical components in the world. Reynard Corporation is the leading global supplier of optical components to the aerospace, commercial and military markets.  We take pride in meeting and exceeding our customers’ expectations in concept, design, engineering and fabrication.

At Reynard Corporation, we have over 28,000 square feet of manufacturing space where we engineer and manufacture the very highest quality optical components. Our thin film coating facility has 20 vacuum chambers, ranging from an 18” bell jar to a 54” fully automatic box coater, all in a 4000 square foot Class 1000 clean room. Processes include electron beam, ion assisted and resistance source deposition. We have the capability to coat virtually any size and shape up to and including substrates 50” in diameter.

Click here to request a quote.

Reynard Corporation operates per Military Specification Mil-I-45208A.