Fused quartz biconcave lens

Fused quartz Biconcave cylindrical lens
  • Quartz biconcave spherical mirror has high transmittance from ultraviolet to near infrared (190nm-2000nm).
  • Quartz double concave spherical mirror lens will radiate light with negative focal length. It is composed of two concave surfaces with equal curvature. It is often used for beam expansion, projection and focal length expansion of optical system.
  • Quartz biconcave lens is an optical lens with negative focal length with two concave surfaces. It is often used in beam expansion, image reduction or light projection. It is also an ideal choice to expand the focal length of optical system.
Technical parameters
Items Parameters
Material UV fused quartz (JGS1, Corning 7980), infrared fused quartz (jgs3, Corning 7978)
Radius of curvature ± 1mm - ± 50000mm ± 1%
Diameter 3mm-300mm ± 0.1mm
Center thickness tolerance ± 0.05mm (we can process to ± 0.01mm with high precision)
Center deviation 3′(we can process to 30 ″with high precision)
Surface accuracy λ/ 8 (high precision, we can process to 1 / 10λ)
Surface quality 40/20 (we can process to 10-5 with high precision)
Effective caliber ≥90%
Coating UV AR Coating or according to the custom requirements
spectral curve

In addition, we have thousands of stock of K9 plano convex lens, biconvex lens, plano concave lens, biconvex lens, meniscus lens and so on. The price is preferential and the quality is excellent, which can meet your demand for a small order. 

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