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Wavefront Sensing

Photonics Spectra
Jan 2011
PhaseViewRequest Info
 
WaveGauge from PhaseView is a turnkey solution based on digital wavefront sensing technology to meet demanding requirements for quality assurance, R&D and production environments. In comparison to conventional systems, it provides wavefront data on a superresolution 500 x 500 grid for real-time testing of lenses and delivers high speed at one lens per second and high accuracy of λ/20 rms. Intensity and high-resolution wavefront mapping with proprietary digital wavefront cameras allow the optics tester to carry out simultaneous surface quality visualization and aberration analysis of most complicated lenses with spherical, aspheric or toric shapes. Applications include wavefront aberration measurement, aspherics characterization, simple and multifocal intraocular lenses, contact lens and lens molds, and optics and objectives.


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GLOSSARY
aspheric
Not spherical; an optical element having one or more surfaces that are not spherical. The spherical surface of a lens may be slightly altered so as to reduce spherical aberration. Aspheric surfaces are frequently, but not necessarily, surfaces of revolution about the lens axis.
camera
A light-tight box that receives light from an object or scene and focuses it to form an image on a light-sensitive material or a detector. The camera generally contains a lens of variable aperture and a shutter of variable speed to precisely control the exposure. In an electronic imaging system, the camera does not use chemical means to store the image, but takes advantage of the sensitivity of various detectors to different bands of the electromagnetic spectrum. These sensors are transducers...
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