What are you looking for in Custom?
We offer two grades of custom borosilicate or equivalent windows “float grade borosilicate or equivalent windows” which are cut from standard float sheet material and “polished grade borosilicate or equivalent windows” which are further polished to better flatness and surface quality.
These custom borosilicate or equivalaent windows listed here are made from Low Expansion Borosilicate or equivalent glass. Borosilicate or equivalent has excellent transmission over the visible and NIR wavelengths working from 310nm to 2700nm. The surface quality is not as high as the BK7 or equivalent versions. Custom Low-expansion Borosilicate (LEGB) or equivalent Windows are very useful as windows in many harsh applications because borosilicate glass has excellent chemical and thermal-shock resistance and has a maximum working temperature of 500°C so are excellent for use in high powered light source applications or an excellent choice for cold and hot mirror substrates. Custom Borosilicate or equivalent windows can also be a good substrate for optical flats as it has low expansion properties and therefore maintains its flatness in different environmental conditions.
Knight Optical supply high quality custom borosilicate windows made to your exact specification. Every component is individually tested by our highly skilled technicians in our state of art metrology lab to ensure all components meet our high quality standards.
Contact our multilingual technical sales team and discover how Knight Optical’s high quality custom borosilicate windows and service can improve your instrumentation and supply chain experience.