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Optical Windows - Light Transmitting Optics

Plane windows made of technical & optical quality glasses

We fabricate optical windows for a wide range of applications. For the manufacturing of this kind of optics we only use high-quality flat glasses or very pure optical glasses, to keep optical distortions low and ensures a good optical imaging quality. Below you will find links to a selection of the optical materials we mainly use to make optical windows:

 

Round optical windows, transmissive optics

 

 

Optical Windows:

 

N-BK7 windows

BK7 is the industry standard for optical quality windows for applications in the visible wavelength range. All types of precision optics for general use, such as windows, lenses, prisms, optical flats and laser optics are often made from BK7. more...

 

Quartz Glass windows made of synthetic Fused-Silica

Our windows made of high purity, synthetic, optical quartz glass offer a very high transmission in the UV-range. Already at a wavelength of 185 nm, more than 80% transmission is available, which allows to use this material for UV-optics. Operating temperatures up to 1000 °C are possible with this material. All types of demanding high quality- and precision laser optics can be made of optical fused silica. more...

 

BOROFLOAT® windows

The high-quality borosilicate glass BOROFLOAT® has a temperature resistance of up to 500 °C. It provides good optical quality, low absorption and an exceptionally high chemical resistance. The material is an ideal choice for industrial grade optics. more...

 

B 270® - Superwite windows

B 270® is a clear crown glass with very good light transmission. The optical quality of the natural, blank surfaces is only moderate according to optical standards. However, by means of an optical polishing process, also high-grade optical windows and other optics can be produced from B 270®. more...

 

Windows made of selected float glass

Our selected float glass is cost-effective and has a high mirror grade surface quality and flatness. It offers good optical transmissivity in the visible. The material is a good choice for applications with increased optical requirements compared to ordinary normal-glasses, such as substrates for mirrors or anti-reflection-coatings. more...

 

 

Thin- and Ultra Thin Optical Windows:

 

Windows made of D 263 T

D 263 T is a perfect material for thin and ultra-thin windows. Even at low thickness, the material has a remarkable flatness* and a low warpage. Rectangular shapes can be manufactured from D 263 T from a thickness of only 50um. Round and free shapes are possible beginning at 0,1 up to 1,1 mm thickness. more...

 

Windows made of 1737F

1737F is an alkali-free boro-aluminum silicate material with a low micro-roughness suitable for COG (chip-on-glass) processes. It features a good flatness* and surface quality. more...

 

Windows made of EAGLE2000

EAGLE2000 is lightweight and belongs to the alkali-free glasses. It has display quality and can be used for more demanding optical applications. The material is color neutral and can withstand elevated temperatures. more...

 

Windows made of MEMpax®

MEMpax® is a borosilicate thin glass with almost the same thermal expansion as BOROFLOAT®. It has a better surface quality and planarity* than most mechanical polishing processes can achieve at such small thicknesses. more...

 

Windows made of AF 32® eco

The new, thin alkali-free AF 32® eco glasses are often used in micro-optic and optoelectronic applications. They can withstand temperatures up to 600 °C and feature a high optical transmission and surface quality. more...

 

Windows made of AS 87 eco

AS 87 eco is an ultra-thin aluminosilicate glass which still offers a quite good transmission at UVC-wavelengths. It is flexible within certain limits and suitable for the production of thin windows for opto-electronics. The material has a good optical quality and a low micro-roughness. more...

 

*Note: The optical flatness of thin and ultra-thin windows is limited for physical reasons. It should be takent into account, that the planarity in the case of a thin glasses depends directly on the thickness, since with low thicknesses, the inherent mass already has an influence on the flatness. Very high optical flatnesses, as are possible with optics based on thicker materials, can not be achieved with thin glasses. The windows, which are made from the aforementioned thin materials, in most cases represent the best possible choice for the best possible planarity at such low thicknesses.

 

 

Coated Windows:

 

ITO-coated optical windows

Our ITO-coated glass windows have a thin, optically transparent and electrically conductive indium-tin oxide coating on one or both surfaces. We constantly produce a large variety of surface resistivities based on various exotic substrate glasses. more...

 

Multilayer-broadband-anti-reflection coated windows

Antireflection-coated optical windows prevent reflections from the surfaces of substrate glasses. They are used to eliminate ghost images or to reduce the optical attenuation. more...

 

Custom Optical Windows:

We manufacture flat optical windows in almost any form from almost any kinds of available materials on request. Each optical window can be polished for a particular flatness and surface quality. Custom coatings, for example an antireflection coating for a specific wavelength, are also possible on the basis of a coating run.

 

 

None of the optical windows listed here is suitable for your application?

If you can not find the flat optical window you are looking for, please send us your inquiry by e-mail, use our inquiry form, send us a fax or give us a call. We manufacture optical windows made of numerous other materials, which are possibly not listed in this overview.