29 July 2008
NEW Zygo Transmission Spheres
Zygo Corporation have introduced the NEW UltraSphere (?/50) Transmission Sphere to enhance its range of transmission spheres for its laser Fizeau interferometer systems.
The range includes:
Standard Performance (?/10) Transmission Spheres in 25mm, 4 inch and 6 inch Entrance Beam Diameters (interferometer apertures).
Standard Performance DynaFlect™ (?/10) Transmission Spheres in 4 inch Entrance Beam Diameter (interferometer aperture).
DynaFlect Coated Transmission Spheres are best for metrology of test optics with > 40% reflectivity.
High Performance (?/20) Transmission Spheres in 4 inch Entrance Beam Diameter (interferometer aperture).
The new Zygo UltraSphere (?/50) Transmission Sphere product is designed to enable surface form metrology with an uncertainty in the RMS) of = 3.2 nm (?/200 at 633nm) when used with a Zygo interferometer. The UltraSphere is an uncoated transmission sphere. Like the Standard and High Performance transmission spheres, the UltraSphere range is best for metrology of test optics with = 40% reflectivity.
The new Zygo UltraSphere (?/50) is available in 4 inch aperture size with f/numbers of f/0.75, f/1.5 and f/3.3.
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