Photonics Dictionary® Plus
Definitions of photonics technology terms, abbreviations and acronyms. It is in the form of a wiki, so the content can be edited and expanded by members of the photonics community – including you!
Also known as divergent lens, negative lens, concave lens or dispersive lens. A lens that causes parallel light rays to spread out – hence diverge – away from the optical axis once exiting the lens. The lens surfaces may be plano-concave, double concave or concave-convex. The edge of a diverging lens is always thicker than the center. Parallel light rays entering a diverging lens tend to form virtual images of the object that light ray is originating from.
A unique collection of technical design and applications articles, as well as articles presenting the basics of photonics technology. Topics range from detectors, cameras and imaging
to optical components
and positioning equipment
and much more.
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Listings of societies, associations, universities and research centers worldwide involved in fostering the education and growth of the photonics industry.
National Institute of Standards and Technology
An organization which develops and promotes primary standards for optical, fiber optic and laser applications.