Edmund Optics introduces its new TECHSPEC λ/20 First Surface Mirrors, featuring a surface quality of 20-10. They are polished to industry-leading surface accuracy and quality specifications to minimize reflected wavefront error. The coated surface is designed to face the incident light, minimizing energy loss by preventing the light from passing through the glass substrate. The Mirrors are manufactured using a precision fused silica substrate with a low coefficient of thermal expansion, allowing use over a large temperature range. These mirrors are ideally suited for applications that require the mirror to be mounted at a 45° angle, creating a 90° bend in the light path, which is used for a wide variety of precision optics purposes such as beam steering and reflection applications.
Enhanced and protected metal coatings provide durability
TECHSPEC λ/20 First Surface Mirrors use metal coatings with a protective dielectric overcoat layer to prevent damage of the coating from the atmosphere or cleaning. This increases the durability of the metal coating and provides protection from oxidation, with little impact on the coating performance. Depending on the application there are different aluminum, gold or silver mirrors with best reflectance in different wave length. TECHSPEC λ/20 First Surface Mirrors are available in 48 standard models with diameters from 10mm to 75mm and dimensions from 10 x 10mm to 75 x 75mm.
