Refraction is the change in direction of light when it passes from one medium to another. The working of a lens is based on the refraction of light when they pass through it. Lens is a transparent ...

LEICESTER, U.K.—Cooke Optics has announced that its new 60mm, 90mm and 150mm Macro/i FF 1:1 lenses are now available to order as a full set. The set of three spherical complimentary macro lenses are ...

One of the oldest problems in optics has been solved. Rafael Gonzalez from Mexico's Tecnologico de Monterrey has come up with an almost comically dense equation that can be used to almost completely ...

Filmmaker Ryan Freeman has asked the unaskable: can you compare a $30,000 Cooke anamorphic lens with a $1,000 Zeiss spherical lens? Well, to insert a bit of a spoiler here, no, you can't. Cooke makes ...

Camera lenses are often described as being 'aspherical', but what does it mean, and is it the only way to design a lens? A lot of lenses are spherical, though. What we mean by “spherical” is usually ...

In the early 1990s, the Opticam ® SM machine was developed for use in the analysis of microgrinding at the Center for Optics Manufacturing, University of Rochester. In mid-1992, a multi-axis flexible ...

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Thirty patients were randomised to receive one of six lens implants including three aspheric lenses and their spherical counterparts. Pre and postoperative testing was carried out including visual ...