Condenser lenses are molded lenses designed for illumination applications. Featuring large apertures and short focal lengths, condenser lenses are commonly used in emitter-detector applications, projection applications, or condensing illumination applications such as koehler illumination. The aspheric condenser lenses are molded on the aspheric surface and ground and polished on the opposite face, offering superior performance. Capability Material: pyrex glass, fused silica or other materials Diameter: 8-350mm Diameter tolerance: +0/-0.2mm Radius: Focal length: +/-1% Center thickness: +/-0.3mm Centration: 3 arc minutes Surface quality: 60-40 Surface accuracy: pv 30-40 micr on Coating: with or without ar coating