Si meniscus lens

Silicon material has good thermal conductivity, low density, high hardness, and good light transmission performance at 1-7um. Monocrystalline silicon is commonly used for 3-5um mid-wave infrared optical windows and substrates for optical filters, and is also a common material for laser reflector substrates.

Meniscus lenses includes positive meniscus and negative meniscus lenses. A meniscus lens has one side of the lens that is convex and one side that is concave. It can be a converging lens or a diverging lens, determined by the refractive index, curvature and radius together. Widely used in photographic systems, projection systems, imaging systems, optical viewfinders, and laser measurement systems.

Specifications:

Material : Optical glass
Diameter : 1mm ~ 300mm
Focal Legnth Tolerance :+/-1%
Diameter Tolerance :+0.0/-0.1mm
Thickness Tolerance :+/-0.1mm
Surface Quality :40/20
Centration :<3 arc minutes
Clear Aperture :>90%
Bevel : Protective bevel as needed
Coating :Upon your request

Realpoo Optics is a professional manufacturer of optical glass lenses, such as Spherical Lens, Glass Rod, Fresnel Lens, Diffraction Grating etc. The optics can be offered with coating or without coating. Welcome to send your inquiry.