• The Optical System of a Lantern
    The Optical System of a Lantern
  • WordNet 3.6
    • adj optic relating to or using sight "ocular inspection","an optical illusion","visual powers","visual navigation"
    • adj optic of or relating to or resembling the eye "ocular muscles","an ocular organ","ocular diseases","the optic (or optical) axis of the eye","an ocular spot is a pigmented organ or part believed to be sensitive to light"
    • n optic the organ of sight
    • ***

Additional illustrations & photos:

a.--Optical System of Lantern a.--Optical System of Lantern
Optical System without Condenser Optical System without Condenser

Webster's Revised Unabridged Dictionary
    • Optic An eyeglass.
    • Optic Of or pertaining to the eye; ocular; as, the optic nerves (the first pair of cranial nerves) which are distributed to the retina; the optic (or optical) axis of the eye. See Illust. of Brain, and Eye.
    • Optic Of, pertaining to, or using vision or sight; as, optical illusions. "The moon, whose orb
      Through optic glass the Tuscan artist views."
    • Optic Relating to the science of optics or to devices designed to assist vision; as, optical works; optical equipment.
    • Optic The organ of sight; an eye. "The difference is as great between
      The optics seeing, as the object seen."
    • ***
Century Dictionary and Cyclopedia
    • optic Relating or pertaining to vision or sight; visual; subservient to the faculty or function of seeing.
    • optic Of or pertaining to the eye as the organ of vision; ocular; ophthalmic.
    • optic Relating to the science of optics.
    • optic The angle which the visual axes of the eyes make with one another as they tend to meet at some distance before the eyes.
    • optic The angle between the optic axes in a biaxial crystal.
    • optic The line in a doubly refracting crystal in the direction of which no double refraction occurs. Crystals belonging to the tetragonal and hexagonal systems have a single optic axis, coincident with their vertical crystallographical axis: hence they are said to be uniaxial. Crystals belonging to the orthorhombic, monoclinic, and triclinic systems have two optic axes, and hence are biaxial.
    • optic Synonyms Optic, Optical. The former is chiefly said of the anatomy of the eye and of the physiology of vision, the latter chiefly of the science of optics: as, optic nerve, tract, lobe; optical angle, center, effect.
    • n optic The eye.
    • n optic An eye-glass; a magnifying glass.
    • ***
Chambers's Twentieth Century Dictionary
    • adj Optic op′tik relating to sight, or to optics
    • n Optic (Pope) an organ of sight: an eye
    • ***


  • Richard Whately
    “In our judgment of human transactions, the law of optics is reversed, we see most dimly the objects which are close around us.”
  • Walter Benjamin
    “The camera introduces us to unconscious optics as does psychoanalysis to unconscious impulses.”


Webster's Revised Unabridged Dictionary
F. optique, Gr. 'optiko`s; akin to 'o`psis sight, 'o`pwpa I have seen, 'o`psomai I shall see, and to 'o`sse the two eyes, 'o`ps face, L. oculus, eye. See Ocular Eye, and cf. Canopy Ophthalmia
Chambers's Twentieth Century Dictionary
Fr. optique—Gr. optikos.


In literature:

The humour in the satires of this time was almost entirely of a hostile or optical character.
"History of English Humour, Vol. 1 (of 2)" by Alfred Guy Kingan L'Estrange
The reason is obvious from what has been said of the test by the optical saccharometer.
"Scientific American Supplement, No. 315, January 14, 1882" by Various
This procedure is being repeated in the launching of an optical-glass industry; this trade has also been in Teutonic hands.
"The War After the War" by Isaac Frederick Marcosson
Loss or decay of sight from disease of the optic nerve.
"The People's Common Sense Medical Adviser in Plain English" by R. V. Pierce
Knowledge of optics cannot rob them of their marvel and their glamour.
"Nature Mysticism" by J. Edward Mercer
The optics of the stage require it.
"A Mummer's Tale" by Anatole France
Neither do I believe it to be an optical illusion.
"In Search of the Unknown" by Robert W. Chambers
By a very curious optical effect, we can see the roof of the church in its entire length.
"Rouen, It's History and Monuments" by Théodore Licquet
OLIVER OPTIC has written nothing better.
"Fighting for the Right" by Oliver Optic
At his command Ptolemy's Optics were translated into Latin from the Arabic.
"Sketches and Studies in Italy and Greece, Vol III." by John Symonds
At his command Ptolemy's Optics were translated into Latin from the Arabic.
"Sketches and Studies in Italy and Greece, Complete" by John Symonds
Stage effect required a study of perspective, variation of light, and a knowledge of the laws of optics.
"A Text-Book of the History of Painting" by John C. Van Dyke
They were not yet considered inferior to those of optical effect.
"Platform Monologues" by T. G. Tucker
I had feared that paralysis had seized the optic nerve.
"Charlotte Bronte and Her Circle" by Clement K. Shorter
Total or partial blindness may follow as a sequel of optic atrophy.
"Aids to Forensic Medicine and Toxicology" by W. G. Aitchison Robertson
Nor was there need for optical demonstration of the conditions.
"The Triumph of John Kars" by Ridgwell Cullum
But it was an optical effect only.
"Brigands of the Moon" by Ray Cummings
This optical illusion was considered to be a sign of the death of the person thus seen.
"Welsh Folk-Lore a Collection of the Folk-Tales and Legends of North Wales" by Elias Owen
I understand perfectly the mental, may I say the optical, attitude of these artists to landscape subjects.
"Old Fogy" by James Huneker
CAUSE: Paralysis of the optic nerve.
"The Veterinarian" by Chas. J. Korinek

In poetry:

Can all that Optics teach unfold
Thy form to please me so,
As when I dreamt of gems and gold
Hid in thy radiant bow?
"To The Rainbow" by Thomas Campbell
As I take my place among other beings
Am I becoming estranged and alone
Because of my mannerisms?
Is there just an optical illusion?
Are there only obstacles in my path?
"Sensation (Bodh)" by Jibanananda Das
The optic nerve has power so keen,
That ev'ry object by it seen
Is stamped upon the brain;
But they of sluggish mental mold
No vivid photograph will hold,
And scarce a scene retain.
"The Five Senses" by Jared Barhite
What ho! brother Denmark; so now in your eye
A beam—nay, 'tis two—my keen optics descry;
Our "wee German lairdies," friend Hapsburg and I,
Will pull it out quickly—don't wince, we will try.
"William of Prussia: The Aggressor" by Janet Hamilton
Nay, love has put your optics on the bum,
To you are Murphy's gold bricks all O. K.;
His talks go down however rank they come,
For he has got you going, fairy fay.
Ah, well! In that I'm in the box with you,
For love has got poor Willie groggy, too.
"The Love Sonnets of a Hoodlum" by Wallace Irwin
- Admit some other features: Faithless, mean;
Encased in matter; vowed to Gods obscene;
Contemptuous of the impalpable, it swells
On Doubt; for pastime swallows miracles;
And if I bid it face what I observe,
Declares me hoodwinked by my optic nerve!
"Foresight And Patience" by George Meredith

In news:

GeoMetrics Report – US Optical Market.
Verizon scrambles to repair sliced fiber optic cable .
Undersea Venezuela-Cuba fiber optic cable delayed.
0Fiber optics and broadband could be the technology of the future for Ottumwa.
A spool of fiber-optic cable.
Infinova provides fiber optics , matrix switching for Chile's private jail system.
Verizon touts core service, fiber optics .
On Thursday JDS Uniphase, a company specializing in fiber-optic communications, announced what may be the biggest loss in corporate history -- $50.6 billion for the last fiscal year.
Anixter's Levels Lab Tests Fiber Optics .
AMX has released the AutoPatch Epica Digital Generation (EpicaDG) line of fiber optic matrix switchers, which are designed for large AV installations in command & control applications.
Workers dig out earth Monday along US 54 between Routes F and H for new fiber optic cable installations in Callaway County and across the state.
Designed with a small footprint for the shop environment, OneTouch optical measuring systems provide quick, micron-level accuracy on individual features or complex piece parts.
A Hitachi engineer displays a portable optical topography device (Image credit: AFP via @daylife).
Andrew Chraplyvy had planned on springing a big surprise on the engineers and scientists assembled at an optics conference last February.
Two and a half miles of fiber-optic cable sit in a northern Minnesota construction yard awaiting installation.

In science:

Interestingly, the optical and radio-optical (αro ) spectral indices do not vary together.
Revealing the Energetics and Structure of AGN Jets
When our experimental techniques are restricted to linear optics, this is not possible when the Bell states are encoded only in optical polarization.
Comparison of two unknown pure quantum states
Mandel L and Wolf E, Optical Coherence and Quantum Optics, Cambridge Univ.
Random groups in the optical waveguides theory
This isophote twist is not seen in the optical, and the ellipticity of the X-ray emission is too large to be explained by a model with mass following optical light.
X-ray Source Population in the Elliptical Galaxy NGC 720 with Chandra
In this paper we report the identification of optical counterparts to the bright X-ray point sources in the inner regions of NGC5128 based on VLT optical images.
Optical Counterparts of X-Ray Point Sources Observed by CHANDRA in NGC5128: 20 New Globular Cluster X-Ray Sources
If the optical spectrum has an intrinsic slope similar to that of the X-ray spectrum, then the optical and X-ray data can be explained naturally in a wind model with p ≈ 2.6, provided that the cooling frequency νc is above the X-ray frequencies at the time of observation (Mirabal et al. 2003a).
The Diversity of Gamma-Ray Bursts and the Surroundings of Massive Stars
The eastern Hi peak has no obvious optical counterpart but is close to the optical tidal tail.
Colliding molecular clouds in head-on galaxy collisions
The optical geometry as generalized in section 3 (using the pro jected curvature) is however more restrictive and the standard optical geometry is more restrictive still.
Generalizing Optical Geometry
For any standard optical geometry there are thus a multitude of generalized optical geometries, for the same reference congruence.
Generalizing Optical Geometry
In particular we show that there exists a generalized optical geometry across the horizon of a Schwarzschild black hole (unlike in the standard optical geometry).
Generalizing Optical Geometry
They found spectral index values of b = 1.33 ± 0.02 (from optical to X-ray spectrum), b = 1.250 ± 0.068 (from a weighted mean over temporal scansion of the optical spectrum) and b = 1.31 ± 0.10 respectively, and an extinction consistent with zero.
Absorption in Gamma Ray Burst afterglows
As discussed in the previous sections, we have evaluated rest frame optical extinction AV r from the optical to near infrared photometry and rest frame equivalent hydrogen column densities NH from the X-ray data.
Absorption in Gamma Ray Burst afterglows
In the very recent experiments on Bose-Einstein condensates (BECs) in optical lattices, dynamically active states have been generated either by accelerating or by tilting the optical lattice or by shifting the harmonic potential trap [3, 4, 5, 6].
From the superfluid to the Mott regime and back: triggering a non-trivial dynamics in an array of coupled condensates
To find the optical counterparts of the absorbed Xray sources, we initially search for optical sources that lie within a relatively large threshold radius of 3.5′′ (corresponding to the maximal 3σ positional uncertainty of the X-ray positions) around each X-ray source.
Discovery of optically faint obscured quasars with Virtual Observatory tools
Consequently, many of the techniques of quantum optics are now being used in QD studies and have led to the observation of Rabi oscillations , photon antibunching , and recently the optical Stark effect in single QD’s.
Creating excitonic entanglement in quantum dots through the optical Stark effect