H-k9l optical window

Overview

It can be seen from h-k9l that near infrared (350-2000nm) has excellent transmittance. It is the most commonly used optical glass for preparing high-quality optical elements, which is used in optical coating and other fields. K9 has excellent mechanical properties, very low bubbles and impurities, and good scratch resistance. Because of its stable chemical properties, it does not need special treatment, grinding and polishing. It is used in many fields, such as optoelectronics, microwave technology, diffractive optical elements and so on.