Optical Windows
Optical Windows are flat, plane-parallel, transparent optical surfaces designed to protect sensors and other electronic instruments from environment conditions.
Optical Windows Designed for Precision
Optical Window selection considerations include material transmission properties as well as scattering, strength and resistance to certain environments. Their use should not impact on magnification of a system. Optical Windows can be optically polished and incorporate an element for diffusing light source to control illumination.


AR coatings can be applied to ensure maximum transmission performance for a particular wavelength.
The windows are made in a range of materials including:
- UV Fused Silica
- Quartz
- IR Crystals and optical glasses.
Our optical window properties include:
- X-ray protection
- Non-browning to UV light
- Light transmission from deep ultra violet to far-infrared.
Products and Applications
UQG Optical Windows products include wedges, substrates, discs, flats, plates, rods, protection windows, laser windows, camera windows, light guides and domes.
Our Windows are used by scientific and industrial companies across the world of medical, defence, instrumentation, laser, research and imaging.
All our Optical Windows can be supplied from a standard range stock. We also supply custom optical windows made to your specification, sizes and specific design.
Explore Our Optical Windows Range
Suppliers of Custom and Stock Optics
Over 70 Years Experience and Expertise in Optics
Free Delivery on Orders Over £500
Talk to the Optics Experts
If you cannot find what you are looking for then contact UQG
+00 44 (0) 1234 123 123