from The Century Dictionary.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adjective (of a moving wave) vibrating in a single plane
Sorry, no etymologies found.
In section 33.8, Penrose brings in "Massless fields of mixed helicity-such as a plane-polarized photon, which is the sum of a right-handed and left-handed part".
In 1873, after van't Hoff had moved to Paris to work with Charles Adolphe Wurtz, he realized that the phenomenon of optical activity possessed by some organic molecules — their ability to rotate plane-polarized light — could be explained by the two possible arrangements of four different substituents in the space around a carbon atom.
A similar rotation is now familiar in the well-known tests of sugars -- lævulose and dextrose -- which rotate plane-polarized light to left and right, respectively.
'Now, two things are clear: first, that if the light be plane-polarized -- that is, if all the vibrations throughout the entire ray are rectilinear and in one plane -- they must in all their bearings have reference to a particular direction in space, so that they will be differently affected by different positions of the analyzer.
And if we examine carefully the spectrum of light which has passed through a selenite, or other ordinary crystal, we shall find that, commencing with two consecutive bands in position, the parts occupied by the bands and those midway between them are plane-polarized, for they become alternately dark and bright; while the intermediate parts,
In fact, plane-polarized light is alternately transmitted and extinguished by the analyzer as it is turned through 90°; while circularly polarized light [if we could get a single ray] remains to all appearance unchanged.
The lesson here is that plane-polarized optics do not work well in combination with polarizing sunglasses.
The rear lens on the EOTech is plane-polarized, necessary for the holographic aspect to work.
So, if you're wearing polarized sunglasses, i.e. sunglasses with polarized lenses, and you're looking through the EOTech at too large an angle from an "awkward shooting position", the EOTech's plane-polarized optics and your sunglasses polarized lenses cancel each other out.
It is then the interaction of plane-polarized light with a birefringent specimen that results in image contrast.