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Thin-Film Coatings

Transparent and reflective standard optical thin films

See here for customized optical coatings.

On this page, please find a summary of our standard optical thin-film coatings. We regularly do the vacuum vapor and ion-beam deposition of the listed thin films to guarantee the best availability, even for custom-sized parts. Please use the links below to view the datasheets of our standard thin-film coated materials:


Transparent Thin Film Coatings


ITO-coated glasses


We produce and process electrically conductive and transparent indium tin oxide thin films applied to various high-quality substrates by sputter deposition. This sputtering process provides an excellent micro-roughness of the ITO films on a level other deposition processes can't offer. Customized sputtering of ITO coatings with a surface resistivity between 5 Ω/square and 1 kΩ/square is possible for production quantities on request. Numerous exotic ITO-coated substrate materials, such as alkali-free glasses, thin glasses, and quartz glasses, are regularly fabricated and available.


Broadband Anti-Reflection Coatings

ARC, ARC-1S, and ARC-B Series (VIS)

Our ARC coating is an efficient multi-layer anti-reflection thin film coating that drastically reduces reflections and suppresses double images. The ARC materials offer significantly increased transmittance and much lower energy loss than uncoated glasses. We deposit the ARC-layer systems on selected quality substrate materials. The deposition of materials provided by the customer is available for sufficiently large production quantities.


Oleophobic Anti-Reflection Coating

ARC-O Series(VIS)

A high transmission characterizes our ARC-O anti-reflection coatings, which feature an additional oleophobic coating on the operator side. The grease, liquid, and dirt-repellent coatings reduce fingerprints to a minimum.



Reflective Thin Film Coatings


Enhanced Aluminum Mirror for visible light

SEA-VIS Series (VIS)

The SEA-VIS mirror has an aluminum metal thin film coating with dielectric over-coatings, which we optimized for an increased optical reflectivity in the visible area. The first surface coating is vacuum deposited on selected float glass substrate materials. The SEA-VIS is economically priced and offers excellent optical quality and mechanical stability. It can also be used in laser applications to reflect lasers with low to medium laser power.


Enhanced Aluminum Mirror for the near-infrared

SEA-NIR Series (NIR)

Our SEA-NIR front surface mirrors have the same basic design and substrate material as the SEA-VIS series. We optimized the dielectric layers on top of the metal thin film coating for applications that need to reflect near-infrared wavelengths.


Protected Aluminum Mirror for UV-light


The SEA-UV metal front surface mirrors are protected by a very thin SiO2-layer coated above the metallic layer. This quartz coating ensures superb ultraviolet reflection and, at the same time, broadband optical reflectivity up into the IR range.


Silver-Metal Mirror

SHP Series (VIS-IR)

The SHP has a silver metal coating with powerful reflectivity. It works with polarized and unpolarized light and laser radiation in the visible wavelength range.


Dielectric High Reflection Mirror

SHR-Series (VIS)

The SHR is a metal-free performance mirror with very high reflectivity in the visible based on a purely dielectric thin film layer system. It is suitable for any application at an angle of incidence of 45° and unpolarized light. The SHR thin films can also be used for specific laser applications and withstand a high thermal load.


Dielectric High Reflection Mirror for polarized light

SHP-D Series (VIS)

We designed the thin film coatings of our dielectric SHP-D front surface mirrors for excellent reflection of S & P polarized and unpolarized light for visible wavelengths and a wide range of incidence angles. We achieve the outstanding performance of the SHP-D coating by depositing numerous thin-film layers.


Dielectric Beam Splitter

DST Series (VIS)

Our optical beam splitter coatings for visible random polarized light allow a neutral splitting of light and laser beams. The semi-transparent optic features anti-reflective thin films on the back to avoid overlaid images or a phantom laser beam. The design of these components enables high-performance and low loss of light.



Thin Film Coatings for Lighting Applications


Heat Reflecting Hot Mirror

SIR Series (VIS/IR)

Our dielectric SIR has a heat-reflecting thin-film coating that is highly transparent for the visible spectrum and has a high reflection for infrared radiation up to about 1100 nm. We coat these thin films on heat-resistant borosilicate glass material, which allows a high thermal load and offers superb chemical stability. The deposition of customized infrared reflecting coatings is possible on request.


Heat Reflection Filter

SIR-IR Series (VIS/IR)

The SIR-IR coating works similar to that of our SIR. However, the visible transmission is not quite as good, and the design focus of this thin film coating is on a more broadband infrared energy blocking range. We also use a borosilicate substrate for the SIR-IR.


Dielectric Cold Mirror

SHD Series (VIS/IR)

Our SHD-coatings feature a very efficient separation of visible light from infrared energy. The coating is all-dielectric and provides a tremendous visible reflection at an incidence angle of 45°. Simultaneously, it filters infrared light up to 2500 nm in transmission. So, the SHD thin films can also work as filters. The coating contains no metals and is first-surface coated. It is deposited on borosilicate glass materials with superb chemical durability.


Note: Our daily business is manufacturing optics with custom dimensions according to your specifications based on vacuum vapor deposition, evaporation, or sputter coating technology. The optical thin-film coatings listed above can usually be processed rapidly. Our advanced manufacturing capabilities enable a typical lead time of only 1–2 weeks for any optical component based on our standard thin films, even in large quantities. Moreover, we can process orders even faster! You can take advantage of our unique 48 h-Express Service, which is feasible for most thin-film coated materials. Of course, the exact possible delivery time depends on the part's complexity, required precision, material, the optics' shape, machining steps necessary, and the technology needed to process it. With our quotation, you always get reliable information on the delivery time.


None of the standard coatings and materials listed here fit into your application?

We offer advanced custom vacuum thin-film deposition and sputtering coating services. We also provide precision ion-beam deposition technologies for high-performance thin-film systems based on almost any substrate glasses. Furthermore, we can control transmissivity, cut-on, cut-off points, and the reflection of nearly any optical thin-film coating for wavelengths up to 2500 nm within certain physical and process limits. If you search for an optical thin film coating for your application that you cannot find here or need engineering support, please request a quote for your customized coating.


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