optical phenomenon

Definitions of optical phenomenon
1

n a physical phenomenon related to or involving light

Types:
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aberration, distortion, optical aberration
an optical phenomenon resulting from the failure of a lens or mirror to produce a good image
absorption band
a dark band in the spectrum of white light that has been transmitted through a substance that exhibits absorption at selective wavelengths
diffraction
when light passes sharp edges or goes through narrow slits the rays are deflected and produce fringes of light and dark bands
fringe, interference fringe
one of the light or dark bands produced by the interference and diffraction of light
incidence
the striking of a light beam on a surface
optical illusion
an optical phenomenon that results in a false or deceptive visual impression
pleochroism
the phenomenon of different colors appearing when certain crystals are viewed from different directions
polarisation, polarization
the phenomenon in which waves of light or other radiation are restricted in direction of vibration
parallax
the apparent displacement of an object as seen from two different points that are not on a line with the object
Tyndall effect
the phenomenon in which light is scattered by very small particles in its path; it makes a beam of light visible; the scattered light is mainly blue
apparent motion, apparent movement, motion, movement
an optical illusion of motion produced by viewing a rapid succession of still pictures of a moving object
chromatic aberration
an optical aberration in which the image has colored fringes
dichroism
pleochroism of a crystal so that it exhibits two different colors when viewed from two different directions
mirage
an optical illusion in which atmospheric refraction by a layer of hot air distorts or inverts reflections of distant objects
spherical aberration
an optical aberration resulting in a distorted image
trichroism
pleochroism of a crystal so that it exhibits three different colors when viewed from three different directions
X-ray diffraction
the scattering of X rays by the atoms of a crystal; the diffraction pattern shows structure of the crystal
annual parallax, heliocentric parallax
the parallax of a celestial body using two points in the earth's orbit around the sun as the baseline
diurnal parallax, geocentric parallax
the parallax of a celestial body using two points on the surface of the earth as the earth rotates
Type of:
physical phenomenon
a natural phenomenon involving the physical properties of matter and energy

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