Sentence examples for ordinary lens from inspiring English sources

The deceleration of the light in the rubidium differed in several ways from how light slows through an ordinary lens.

Using this technique, it is possible to achieve sharper focus at a given level of illumination than is possible with any ordinary lens system.One application for wavefront coding may be the burgeoning field of biometrics the use of a unique piece ofpersonal information, such as a fingerprint, retinal scan or voiceprint, for identification.

By using a novel distorting lens and digital-signal processing, the firm can extract crisp images from situations in which an ordinary lens sees only a blur.In a conventional optical system, light rays enter through a lens and converge at a point to form an image.

For a piece of ordinary lens, radial distortion can be an adequate description of nonlinear distortion.

In the past decade, physicists and engineers pioneered new ways to guide and manipulate light, creating lenses that defy the fundamental limit on the resolution of an ordinary lens and even constructing "cloaks" that make an object invisible sort of.

"The strength of what they've done is to point out that this so-called negative lens is completely different from an ordinary lens," says John Pendry, a physicist at Imperial College London in the U.K. "But they really cannot do the things people want to do with optical tweezers," such as positioning biological objects with nanoprecision.

Such "left-handed" materials could be used to make lenses that focus light much more tightly than ordinary lenses can, as well as other novel devices.

Thanks to such negative refraction, a simple slab of left-handed material could serve as a perfect lens, able to focus on detail that ordinary lenses cannot resolve.

Refraction is the key to how ordinary lenses focus light, and in theory, negative refraction would allow a flat slab of metamaterial to function as a lens that could focus light infinitely tightly.

Ken Rockwell recommends cheap, ordinary lenses for pet birds, and then a skip up to practical long lenses in the US$1000-1600 1000-1600 wild birangeotography for amateurs.[2] For the more serious, you can dabble in very expensive lenses but wild until you know that this is going to really birdour hobby before investing at the high end.

Safety glasses have heavier lenses and can withstand shock better than an ordinary eyeglass lens.