Virtual Vertometer Lens power measuring tool.
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Virtual Vertometer Tags

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Virtual Vertometer Description

The Virtual Vertometer is a lens power measuring tool designed to assist spectacle lens manufacturers. Lens refractive-index, front and back environment refractive-indices, curves, thickness and stops can be altered to calculate the front and back vertex powers and knife-edge-thickness. A cross-sectional ray trace diagram is redrawn each time a change is made. It finds the location of the spherical aberration circle of least confusion by tracing a beam of 1000 parallel rays through a lens, forming the caustic; and where the marginal rays intersect the caustic, the colc is found. Platforms supported: Windows 95, Windows NT, Windows 2000, Windows 98, Windows ME Benefits of registration: If your lenses are coming out off-power you can verify what power should have been expected with the Virtual Vertometer. Alter the curves or thickness and see what power you will get. Make quick curve and radius conversions just by changing a refractive index. The virtual vertometer can be useful for both eyecare professionals and optical laboratories. In either case, it can be used for - *Quick tool index conversions. *Radius calculator for tool cutting or lentic aperture. *Sag calculator. *Verifying curves etc on problem jobs. *Answering some questions quickly without having to enter complete details. *Educating staff about lens parameters and what affects them. *Playing with. Each registered version license allows the Virtual Vertometer to be run on ANY NUMBER of computers on ONE SITE(geographical location) only.

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