Visible window

Eliminate ghost images and phantom laser beams with our anti-reflection coated windows that reduce optical attenuation and increase light transmission. More ...

Sapphire window

BOROFLOAT® glass is resistant to temperatures up to 500 °C and has excellent optical characteristics, low absorption, and high chemical resistance. It is ideal for industrial-grade windows from visible to infrared wavelengths and is an economical choice for components like mirrors and filter optics. It is available at various standard thicknesses. More ...

For every optical need, there’s an optimal solution. While it may not make sense to use high-end glass for basic applications, sophisticated uses often require highly pure glass types to function effectively. We are here to help you select the most optimal and economical solution for your optical application.

Präzisions Glas & Optik GmbH has been a leading producer of optical windows for industry, research, and science for over 25 years. Optical windows are essential components that transmit light, images, or lasers within optical systems without degrading the image or laser quality. The selection of the appropriate raw materials is crucial in achieving the desired optical performance. That’s why we exclusively use high-purity glass materials and specialty flat glass to manufacture optical windows, ensuring minimal distortion, excellent imaging properties, and maximum transparency.

CaF2 window

If the optical windows listed here don’t meet your needs, feel free to use our inquiry form. We regularly fabricate custom precision optics from other materials not listed in this overview.

We manufacture flat and plane window optics in almost any custom size and shape from various materials on request. Customized windows polished to specific flatness or optical specifications, including AR-coated windows for specific wavelengths or laser applications, are part of our capabilities.

KBr window

N-BK7 is a standard in the industry for visible wavelength applications that require optical-grade windows. We fabricate custom precision optics from BK7 due to its purity, making it ideal for laser applications and also for lenses. More ...

This lightweight, alkali-free material surpasses display quality and works in demanding thin optical window applications. It is color-neutral and withstands elevated temperatures. More ...

Our ITO-coated windows feature a thin, optically transparent, electrically conductive indium-tin-oxide coating and are produced to accommodate various surface resistivities. More ...

Germanium window

B 270® is a clear crown glass known for its superb light transmission. When optically polished, it can be used to produce demanding optical windows, optical flats, and even laser optics. More ...

BaF2 window

We offer various materials for manufacturing translucent optical windows and optical flats. Below are links to datasheets with technical details and optical specifications to assist you in finding the best solution for your project:

D 263 T is ideal for thin and ultra-thin optics and is available in various standard thicknesses. Featuring remarkable flatness and low warp, we fabricate rectangular windows starting at 50 µm thickness. More ...

Edmund window

MEMpax® borosilicate glass offers similar thermal expansion properties as BOROFLOAT®, but with superior surfaces and planarity. It is perfect for ultra-thin window optics with transmittance from UV to infrared. More ...

Our ARC-O series creates oleophobic windows that repel fingerprints, liquids, and dirt, making them easier to clean. More ...

Brewster window

Alkali-free EAGLE XG® glass serves as a base for modern LCD and OLED displays. It is suitable for wafer-level optics, offering low micro-roughness, excellent surfaces, and high flatness. More ...

Optical-grade synthetic fused silica provides nearly perfect purity and outstanding optical characteristics. It provides exceptional transmission from deep ultraviolet to infrared light. Deep UV optics typically require this material, with over 80% light transmission at 185 nm. Additionally, it can operate at temperatures up to 1000 °C. More ...

This aluminosilicate glass offers high transmittance at upper UVC wavelengths and provides exceptional optical characteristics and low micro-roughness, making it suitable for ultra-thin windows in optoelectronics. More ...

This cost-effective material offers superior optical properties and flatness, making it suitable for optical mirrors, filters, and anti-reflection coatings. It has high transmissivity for visible light and is available in thicknesses from 0.4 mm to 4 mm. More ...

This alkali-free boro-aluminum silicate material has low micro-roughness and is suitable for COG (chip-on-glass) processes. We use 1737F to create flat, thin optical windows with specific requirements regarding micro-roughness, smoothness, and flatness. More ...

Alkali-free AF 32® eco glass is used for sensor covers in micro-optics and numerous optoelectronic applications. It can withstand temperatures up to 600 °C and offers uniform optical transmittance and excellent surface quality. More

*Note: The flatness of thin and ultra-thin glass parts is limited for physical reasons. Please consider that the planarity of thin glass depends directly on the thickness since, with small thicknesses, the inherent mass already influences the flatness. Consequently, the flatness achieved with window optics based on thicker materials cannot be reached. However, the thin materials mentioned above are usually the best choice for the highest planarity at low thicknesses and typically cannot be outperformed by mechanical polishing processes.