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Product Announcement

Knight Optical’s KG1 Heat Glass Filters for Heat-Sensitive Systems

08 Dec 2021

Commonly used in lighting devices – such as protective filters for projector optics – and systems featuring heat-sensitive components, KG1 Heat Glass Filters help alleviate overheating issues. Thermally toughened to eliminate cracking from excessive thermal energy, and high in quality, our KG1 Heat Glass Filters are regularly integrated into such devices that receive too much incident IR transmission. 

The KG1 Heat Glass Filters themselves are designed to transmit visible wavelengths to absorb heat, causing infrared (IR) wavelengths; therefore, preventing it from reaching your system. Although this capability makes the KG1 Heat Glass Filter a sought-after component for engineers and R&D professionals working on heat-sensitive systems; it's worth noting, however, that care should be taken in the design of systems using KG1 as the material is an absorptive blocker and will heat up with use.

Available from stock or – as with all our components – as custom-made optics for seamless integration with your project, our KG1 Heat Glass Filters meet a diverse range of requirements sought by heat-sensitive systems. By opting for tailor-made optical components, you can specify the shape, size, substrate, optical coating and tolerances best suited to your project. 

Typical specs:

Material: Schott KG1

Shape: Circular filter, square filter

Dimensional tolerances: +/- 0.1mm 

Parallelism: <5 arcminutes

Surface accuracy: <5(2) @633nm

Surface quality: <60-40 scratch/dig

Quality you can rely on

Quality is at the core of Knight Optical, and to ensure you profit from high-precision optics, we take the utmost care to ensure every component accurately meets your specifications. Offering unparalleled service, Knight Optical undertakes a full inspection of your optics from our ISO 9001:2015-certified, state-of-the-art Metrology Laboratory, followed by a meticulous visual examination by our dedicated QA department. 

To discover how we can enhance your supply chain experience and to learn more about our stock and custom-made KG1 Heat Glass Filters, contact a member of our technical sales team today. 

UK, Europe, Asia & RoW: E-mail info@knightoptical.co.uk 

Tel +44 (0)1622 859444

USA & Canada: E-mail usasales@knightoptical.com 

Tel +001 401-583-7846 

Knight Optical Ltd
Roebuck Business Park
ME17 1AB
United Kingdom
Tel: 44 (0)1622 859444
Fax: 44 (0)1622 859 555
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