• The Optical System of a Lantern
    The Optical System of a Lantern
  • WordNet 3.6
    • adj optical of or relating to or involving light or optics "optical supplies"
    • adj optical relating to or using sight "ocular inspection","an optical illusion","visual powers","visual navigation"
    • adj optical 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"
    • ***

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
    • Optical 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.
    • Optical Of, pertaining to, or using vision or sight; as, optical illusions. "The moon, whose orb
      Through optic glass the Tuscan artist views."
    • Optical Relating to the science of optics or to devices designed to assist vision; as, optical works; optical equipment.
    • ***
Century Dictionary and Cyclopedia
    • optical Relating to or connected with the science of optics; based on or constructed in accordance with the laws of optics: as, optical laws; optical instruments.
    • optical Pertaining to vision; optic.
    • optical Treating of or studying optics: as, optical writers.
    • optical Synonyms See optic.
    • ***
Chambers's Twentieth Century Dictionary
    • adj Optical op′tikal relating to sight, or to optics
    • ***


  • 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:

But optics sharp it needs, I ween, To see what is not to be seen.
"Familiar Quotations" by Various
If a telescope has no finder, it will be easy for the student to construct one for himself, and will be a useful exercise in optics.
"Half-hours with the Telescope" by Richard A. Proctor
But unluckily his criticisms were directed precisely to those points wherein optics may vie in evidence with geometry itself.
"Biographies of Distinguished Scientific Men" by Francois Arago
The system of optical communication proposed by Capt.
"Scientific American Supplement, No. 508, September 26, 1885" by Various
C., and optically inactive.
"Scientific American Supplement, No. 711, August 17, 1889" by Various
I., is complete in itself, and has been the entire optical education of many successful opticians.
"Watch and Clock Escapements" by Anonymous
Every optic gun in the room was levelled at it.
"The Soldier of the Valley" by Nelson Lloyd
In fishes we begin to find them, but they are much smaller than the optic lobes.
"The Destiny of Man" by John Fiske
These first directed the gold-bound optic glass at the strangers' pew.
"The Astonishing History of Troy Town" by Sir Arthur Thomas Quiller-Couch
Optical tests can be conducted by securing an ordinary letter chart such as is used by oculists and opticians.
"Initiative Psychic Energy" by Warren Hilton
The second made the bully's left optic black, and the third caused the blood to spurt freely.
"The Mystery at Putnam Hall" by Arthur M. Winfield
It is one of the best examples of this species of optical illusion to be found in this part of the country.
"The Bay State Monthly, Volume 3, No. 2" by Various
The smaller waves are, however, far the most interesting and the most tractable to ordinary optical experiments.
"Scientific American Supplement, No. 717, September 28, 1889" by Various
This fact is a fruitful source of optical illusion.
"Illusions" by James Sully
Astronomy, chemistry, optics, pneumatics, and even geography, were involved in the general darkness and error.
"Salem Witchcraft, Volumes I and II" by Charles Upham
Sit right down here, and squint your optic over this set of hen-tracks, made by the halfbreed, Dubois.
"Canoe Mates in Canada" by St. George Rathborne
I have known more extraordinary optical illusions than that in my time.
"Kate Danton, or, Captain Danton's Daughters" by May Agnes Fleming
The optic nerve is the part of the eye which conveys visions to the mind.
"Fables of Infidelity and Facts of Faith" by Robert Patterson
This was a common optical delusion, upon which he scarcely speculated at all.
"Brood of the Witch-Queen" by Sax Rohmer
So great has been the success of this series, that Oliver Optic is now preparing a second.
"The Angel Children" by Charlotte M. Higgins

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:

Neither my husband nor I wear glasses, so optical issues are foreign to us.
Process performance was comparable across all scales, and fiber optic sensors appeared interchangeable with conventional probes.
A look at the VisionGauge digital optical comparator from VisionX, availale from Methods Machine Tools.
A digital optical comparator uses a CAD file instead of a template or overlay film.
Designed for medical device manufacturers, the Focus Specialist optical comparator features telecentric optics that yield clear, undistorted upright and reversed images on a viewing screen measuring 16 (406 mm) in diameter.
Optical Comparator Designed for Medical Manufacturers.
Infrared electro-optical technology to determine road conditions.
The men were trying to pull fiber optic cables across the river in Sunderland when the accident happened.
Telecast Fiber Systems has unveiled the new CopperHead JT, an HD fiber optic transport system for film sets, television, video production and sports coverage.
The new SC-to-SC fiber-optic coupler panel provides 1x24 density in a single rack unit.
ZEAL Optics is proud to call Canadian surfer Pete Devries part of the ZEAL pro team.
Space-based optical laser communications testing to begin next year.
The potential sale of Nortel's Metro Ethernet Networks, which includes the company's optical and carrier ethernet technology, caught some analysts by surprise.
I have heard a number of positive comments regarding the addition of an optical event at ITEXPO this fall.
Chuck Surack Expands His Business Portfolio, Purchases Longe Optical.

In science:

Aside from the optically matching SNRs, we have found one soft X-ray source in M33 which exhibits no optical emission and is coincident with a known radio source.
Revealing the Supernova Remnant Population of M33 with Chandra
Pending confirmation from optical spectroscopy, the identification of these two optical counterparts increases the total number of known optically emitting SNRs in M33 to 100.
Revealing the Supernova Remnant Population of M33 with Chandra
We have also found two previously unidentified optical SNRs in M33 by comparing Chandra and XMM-Newton source lists with narrowband optical images.
Revealing the Supernova Remnant Population of M33 with Chandra
An upper limit can be obtained by using both the PSF size and the (admittedly rough) optically measured sizes for the known optical SNR.
Revealing the Supernova Remnant Population of M33 with Chandra
The total number of unique remnants with optical counterparts in both the Chandra and XMM-Newton observations is 37, nearly 1/3 of the total identified in the optical.
Revealing the Supernova Remnant Population of M33 with Chandra
Aside from matching X-ray sources with known optical SNRs, we have also attempted to use soft sources detected by Chandra to find optical counterparts missed by earlier narrowband imagery of M33.
Revealing the Supernova Remnant Population of M33 with Chandra
Compared to the optical/X-ray survey of the more distant galaxy M83 (5 Mpc), we find no evidence that the brightest optical SNRs are preferentially detected in the X-rays.
Revealing the Supernova Remnant Population of M33 with Chandra
The X-ray and optical properties of sources in the supplementary optically bright Chandra catalog are mostly consistent with those expected for starburst and normal galaxies.
The Extended Chandra Deep Field-South Survey. Chandra Point-Source Catalogs
The label ROM stands for relative optical measurements, which dealt with a comparison of two optical frequencies whithin the same experiment.
Precision physics of simple atoms: QED tests, nuclear structure and fundamental constants
Recently, the interest in this sub ject was renewed due to technological developments in quantum optics associated with the construction of new type of lasers8,9 and the experimental investigation of atoms in optical lattices10 .
Resonance width distribution for high-dimensional random media
Within the uncertainties and systematics involved in our optical sample, the results indicate that the properties of optical clusters do not exactly represent either the distribution of the halos or that of the X-ray emitting gas in any of the simulations.
Morphology and Evolution of Simulated and Optical Clusters: A Comparative Analysis
The optical reddening model of Mendez & van Altena (1998), which is based on Galactic dust distribution model, makes use of the same optical sky surveys implemented by Hakkila et al. (1997) in addition to some other restricted surveys.
Are Ti44-Producing Supernovae Exceptional?
Optical R-band images from both Yun et al. (2005), and Ivison et al. (2005) show multiple optical counterparts at the southeast radio source position.
The Bolocam 1.1 mm Lockman Hole Galaxy Survey: SHARC II 350 micron Photometry and Implications for Spectral Models, Dust Temperatures, and Redshift Estimation
As the FU S E and our optical observations were not simultaneous, we interpolated FU S E fluxes to dates of optical observations and vice versa.
Structure of the hot object in the symbiotic prototype Z And during its 2000-03 active phase
Within this scenario we interpret the small optical rebrightening as a consequence of a dilution of the optically thick shell around the hot star.
Structure of the hot object in the symbiotic prototype Z And during its 2000-03 active phase