lens

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Synonyms for lens

genus of small erect or climbing herbs with pinnate leaves and small inconspicuous white flowers and small flattened pods: lentils

(metaphor) a channel through which something can be seen or understood

biconvex transparent body situated behind the iris in the eye

electronic equipment that uses a magnetic or electric field in order to focus a beam of electrons

References in periodicals archive ?
Lenses with built-in vibration-reduction systems to counteract camera shake, apochromatic lens elements for reducing optical aberrations, and ultrasonic lens motors to ensure silent auto-focus operation are some of the preferred technologies for wildlife photography.
Such a range would be disadvantageous to image quality in the normal eye because of severe chromatic aberration; however, the apochromatic lens of the Sidereal Eye enables a much wider spectral range to be focused sharply.
It also features a triple apochromatic lens system, which reduces fringing, dilution of color fidelity, and degradation of resolution.
But it isn't just the focal length that will determine the photographer's choice of lens--other considerations include the provision of a built-in vibration reduction system to counteract camera shake; an ultrasonic lens motor to ensure that autofocus operation is silent; apochromatic lens elements for reducing optical aberrations; and a 'fast' maximum aperture.
The system's components, including the apochromatic lens, were specially designed at the Agfa Optics Centre in Munich, Germany.