Spherical lens element
doubletmeniscusBK7

spherical lens element
spherical lens element
spherical lens element
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Characteristics

Geometry/curvature
spherical, doublet, meniscus
Material
BK7, optical glass, fused silica, germanium, zinc selenide, CaF2, sapphire, quartz, silicon
Other characteristics
with anti-reflective coating
Diameter

Min.: 5 mm
(0.2 in)

Max.: 300 mm
(11.81 in)

Description

The Meniscus / Crescent lens has concave-convex spherical polished surfaces. If these meniscus / crescent lenses are used in combination with other components, it is possible the focal length of assembly, without significantly increasing the axial aberrations. These lenses are employed to greatest advantage to they are used to shorten the length the focal length of a doublet or a plano-convex lens already working at an infinite conjugate ratio. Cutting lenses like rectangle, step according to various requirements are available. Creator Optics can produce all kinds of customized optical meniscus / crescent lenses. The main material of these crescent / meniscus lens are as follows: BK7 glass and all catalog optical glass, fused silica, Sapphire crystal, Quartz crystal, Germanium ( Ge ) monocrystal, Silicon monocrystal, ZnSe, Barium Fluoride ( BaF2 ), Calcium Fluoride ( CaF2 ), ZnS, Pyrex, BOROFLOAT, float glass, etc. - Surface Quality: 80/50, 60/40, 40/20, 20/10, 10/5. - Coating: We provide different single layer or multiplayer anti-reflecting (AR) coating against differrent requirements. Customized available.

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.