Lexic.us

Definition of Optic axis

1. Noun. In a doubly refracting crystal, the line in the direction of which no double refraction occurs. "A crystal may have either one or two optic axes"

2. Noun. A line that passes through the center of curvature of a lens so that light is neither reflected nor refracted. "In a normal eye the optic axis is the direction in which objects are seen most distinctly"

Medical Definition of Optic axis

1. The axis of the eye connecting the anterior and posterior poles; it usually diverges from the visual axis by five degrees or more. Synonym: axis opticus. (05 Mar 2000)

Lexicographical Neighbors of Optic Axis

optatives opted opted in opted out opter opters opthalmic opthalmologist opthalmology opthalmoscope

opthamology optic optic agnosia optic ataxia optic atrophy optic axis (current term) optic canal optic capsule optic chiasm optic chiasma

optic decussation optic disc optic disk optic disk drusen optic fissure optic foramen optic glioma optic groove optic layer

Literary usage of Optic axis

Below you will find example usage of this term as found in modern and/or classical literature:

1. Science by American Association for the Advancement of Science (1896)
"The optic axis lay horizontal. A portion of the ice, about as wide as the strap, ... 212. that tended to bring the optic axis into coincidence with the ..."

2. Manual of Petrographic Methods by Albert Johannsen (1918)
"It is, of course, not necessary to determine the complete curves but only that part in the neighborhood of the optic axis. The curves may be named from the ..."

3. Manual of Petrographic Methods by Albert Johannsen (1918)
"It is, of course, not necessary to determine the complete curves but only that part in the neighborhood of the optic axis. The curves may be named from the ..."

4. Manual of Petrographic Methods by Albert Johannsen (1914)
"It is, of course, not necessary to determine the complete curves but only that part in the neighborhood of the optic axis. The curves may be named from the ..."

5. The Methods of Petrographic-microscopic Research, Their Relative Accuracy by Frederic Eugene Wright (1911)
"In weakly convergent polarized light the optic axis can be seen in the center ... More accurate determinations of the position of an optic axis can then be ..."

6. An Introduction to Natural Philosophy: Designed as a Text Book, for the Use by Denison Olmsted (1854)
"287,) is called the optic axis, since when a ray enters a crystal in the ... 287, passing through the optic axis, and every plane parallel to this, ..."

7. The Elements of Vegetable Histology by Charles William Ballard (1921)
"A line passing through the thickest part of a convex lens and the thinnest part of a concave lens is termed the optic axis or principal axis. ..."

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