| trichroism |
pleochroism of a crystal so that it exhibits three different colors when viewed from three different directions
출처: wordnet.princeton.edu/perl/webwn
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| trichroism |
(tri
출처: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| trichroism |
In doubly refractive gemstones the light ray is split and each part refracted (bent) to a different degree. Assuming this ray is made up of white light (which is composed of all colours) each ray has various colours absorbed (filtered) so that each ray as it emerges from the gemstone is a different (residual) colour. This is called dichroism (means two colours). Thus depending upon the direction one looks at the stone relative to the crystal and optical axes a different colour is seen. ...
출처: www.ganoksin.com/borisat/nenam/physical.htm
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