Multiple issues unbalanced June 2010 disputed July 2009 The Book of Optics lang ar Kit b al Man ir ... Arabis Italian language Italian Deli Aspecti was a seven volume treatise on optics , Islamic physics ..., Richard B. Nehrich, Glenn I. Voran Page br The Journal of Science, and Annals of Astronomy, Biology ... influence on the History of optics development of optics , as it laid the foundations for modern physical optics after drastically transforming the way in which light and Visual perception vision had ... . Ibn al Haytham has been called the father of modern optics , ref name Verma R. L. Verma 1969 . Al Hazen father of modern optics . ref the pioneer of the modern scientific method, ref name Gorini ... The Book of Optics has been ranked alongside Isaac Newton s Philosophiae Naturalis Principia Mathematica ... Revolution revolution in the fields of optics and visual perception , ref name Sabra citation last1 ... 500 publisher Brill Publishers isbn 9004091262 ref ref Citation journal The Medieval History Journal ... H l na last Bellosta journal Arabic Sciences and Philosophy year 2002 volume 12 pages 285 303 publisher ... A Polymath in the 10th Century first Roshdi last Rashed journal Science journal Science date ... journal Isis journal Isis volume 58 issue 3 pages 321 341 332 doi 10.1086 350266 ref also known ... of proof in optics, ref name Gorini and gave optics a physico mathematical conception at a much ... Science of Optics in the Seventeenth Century publisher Springer Science Business Media Springer ... mathematical conception of optics was established at a much earlier time than would be the case in the other mathematical sciences. ref The Book of Optics also contains the earliest discussions and descriptions ... and Experimental Psychology? , American Journal of Islamic Social Sciences 16 2 . ref and the first ... of the Book of OpticsOptics and vision In classical antiquity , there were two major theories ... Ray optics rays of light . The second theory, the intromission theory, supported by Aristotle and his ... more details
Unreferenced date November 2009 In optics and especially telescope making , sagitta is a measure of the glass removed to yield an optical curve. It is approximated by the formula math S frac r 2 2 times text ROC math or math S frac r 2 4 times text focal length . math A good explanation both of this approximate formula and the exact formula can be found at http www.opticampus.com popcourse.php?url high powered appendix optics stub Category Optics ... more details
For Gaussian beam optics Gaussian beam Gaussian optics is a technique in geometrical optics that describes the behaviour of light rays in optical systems by using the paraxial approximation , in which only rays which make small angles with the optical axis of the system are considered. ref A.Lipson, S.G.Lipson, H.Lipson, http books.google.it books?id aow3o0dhyjYC&pg PA51 v onepage&q&f false Optical Physics , IV edition, 2010, University Press, Cambridge, UK, p.51 ref In this approximation, trigonometric functions can be expressed as linear functions of the angles. Gaussian optics applies to systems in which all the optical surfaces are either flat or are portions of a sphere . In this case, simple explicit formulae can be given for parameters of an imaging system such as focal distance, magnification and brightness, in terms of the geometrical shapes and material properties of the constituent elements. Gaussian optics is named after Carl Friedrich Gauss , who showed that an optical system can be characterized by a series of Cardinal point optics cardinal points , which allow one to calculate its optical properties. ref W.J.Smith, http books.google.it books?id DrtM bAnf YC&pg PA22 v onepage&q&f false Modern optical engineering the design of optical systems , McGraw Hill 2007, p.22 ref References reflist Category Geometrical opticsoptics stub ... more details
Merge to Light scattering date July 2011 Optical scattering deals with the scattering , absorption, and extinction of electromagnetic radiation by particles, molecules and surfaces. Both single scattering and multiple scattering i.e. radiative transfer are considered in this category. Section 290 of the optics classification of the Optical Society of America analyses the subject into the following subcategories ref http www.osa.org journals ociscodes ocis.pdf Optics Classification and Indexing Scheme OCIS , Optical Society of America , 1997 ref scattering mechanisms See also Light scattering Scattering theory References reflist DEFAULTSORT Scattering Optics Category Scattering, absorption and radiative transfer optics ... more details
Optical aberration Image lens coma.svg thumb 300px Coma of a single lens In optics especially telescope s , the coma aka comatic aberration in an optical system refers to aberration in optical systems aberration inherent to certain optical designs or due to imperfection in the lens optics lens or other components which results in off axis point source s such as stars appearing distorted, appearing to have a tail coma cometary coma like a comet . Specifically, coma is defined as a variation in magnification over the entrance pupil . In refraction refractive or diffraction diffractive optical systems, especially those imaging a wide spectral range, coma can be a function of wavelength , in which case it is a form of chromatic aberration . Coma is an inherent property of telescopes using parabolic mirror s. Unlike a spherical mirror , a bundle of parallel rays parallel to the optical axis will be perfectly focused to a point the mirror is free of spherical aberration , no matter where they strike the mirror. However, this is only true if the rays are parallel to the axis of the parabola. When the incoming rays strike the mirror at an angle, individual rays are not reflected to the same point. When looking at a point that is not perfectly aligned with the optical axis, some of the incoming light from that point will strike the mirror at an angle. This results in an image that is not in the center of the field looking wedge shaped. The further off axis or the greater the angle subtented by the point with the optical axis , the worse this effect is. This causes stars to appear to have a coma cometary cometary coma , hence the name. http www.opticalmechanics.com technical articles ... aberration in the eyes of patients with keratoconus . ref name pmid17553566 cite journal author Pantanelli ... or penetrating keratoplasty using a high dynamic range wavefront sensor journal Ophthalmology journal ... telescope http www.youtube.com watch?v EXmaY2txEBo Coma Aberration in Youtube Category Optics ... more details
distinguish optoelectronics Electro optics is a branch of technology involving components, devices and systems which operate by modification of the optical properties of a material by an electric field . Thus it concerns the interaction between the electromagnetism electromagnetic optics optical and the electricity electrical electron ic states of materials. Electro optical devices The electro optic effect relates to a change in the optical properties of the medium which usually is a change in the birefringence and not simply the refractive index. In a Kerr cell , the change in birefringence is Proportionality mathematics proportional to the square of the electric field , and the material is usually a liquid. In a Pockels cell , the change in birefringence varies linearly with the electric field, and the material is a crystal. Non crystalline electro optic material have caught interested because of their low cost of production. It is polymer based material, therefore is organic material. It is called sometimes as organic EO material, plastic EO material, or polymer EO material, which consists of a polymer and a nonlinear optical chromophore. Nonlinear optical chromophore is the molecule has Pockel s effect. References FS1037C MS188 DODDIC cite book last Friedman first Edward title Photonics Rules of Thumb Optics, Electro optics, Fiber Optics, and Lasers publisher McGraw Hill Professional year 2004 isbn 0 07 138519 3 Category Optoelectronics Category Nonlinear optics el pt Eletro ptica ... more details
Other uses Prism disambiguation File Prism side fs PNr 0117.jpg thumb upright right A plastic prism In optics , a prism is a transparent optical element with flat, polished surfaces that refraction refract light . The exact angles between the surfaces depend on the application. The traditional geometrical shape is that of a triangular prism with a triangular base and rectangular sides, and in colloquial use prism usually refers to this type. Some types of optical prism are not in fact in the shape of prism geometry geometric prisms . Prisms can be made from any material that is transparent to the wavelength s for which they are designed. Typical materials include glass , plastic and Fluorite Optics fluorite . A prism can be used to break light up into its constituent spectrum spectral color s the colors of the rainbow . Prisms can also be used to reflection physics reflect light, or to split ... or color of the light used, a phenomenon known as dispersion optics dispersion . This causes ... indicate the ray angles after refraction. Ray optics Ray angle deviation and dispersion through ... prism laser beam expander s were introduced in the 1980s. ref cite journal doi 10.1016 0030 4018 ... for pulsed dye lasers journal Opt. Commun. volume 43 pages 303 307 year 1982 bibcode 1982OptCo ... prism optics Triangular prism Abbe prism Pellin Broca prism Amici prism Compound prism Grating and prism ... res handbook Handbook of Optics . Vol. 2, Ch. 5. McGraw Hill. ref Paschen Runge mounting Paschen Runge ... . The most commonly found implementation is a Risley prism pair. ref cite journal doi 10.1117 ... applications journal Opt. Eng. volume 42 pages 1038 1047 year 2003 bibcode 2003OptEn..42.1038D ... TechnicalGuide Fundamental Optics.pdf Fundamental Optics CVI Melles Griot Further Reading cite book author Hecht, Eugene title Optics edition 4th publisher Pearson Education year 2001 isbn 0 8053 8566 ... sq Prizmi optik si simple Prism optics sk Optick hranol sl Opti na ... more details
Unreferenced stub auto yes date December 2009 Ion optics involves the focusing of Plasma physics plasma s and ion streams, usually in mass spectrometry . Electric field manipulation Electrostatic lens Einzel lens Electrostatic analyzer Magnetic field manipulation Quadrupole deflector See also Mass to charge ratio Mass spectrometry DEFAULTSORT Ion Optics Category Electromagnetism Category Mass spectrometry Electromagnetism stub it Ottica ionica ... more details
Infobox Album See Wikipedia WikiProject Albums Name Optics Type Album Artist I Scintilla Cover Released May 22, 2007 Recorded ??? Genre Industrial rock Industrial Length 55 00 Bonus CD 62 20 Label Alfa Matrix Producer Wade Alin and Jim Cookas Reviews Last album The Approach br 2004 This album Optics br 2007 Next album Dying and Falling br 2010 Optics is the second album of the Illinois based industrial band, I Scintilla . Track listing Cursive Eve 5 33 Toy Soldier 3 53 The Bells 4 32 Melt 5 22 Translate 4 01 Scin 4 33 Machine Vision 4 37 Havestar 4 37 Ultravioletfly 4 07 Silhouette 4 15 Taken 4 38 Salt of Stones 4 52 Bonus CD Track Listings The Bells Angelspit Mix 4 59 Scin Clan of Xymox Mix 5 33 Havestar Combichrist Mix 4 41 Cursive Eve Zero Tolerance Treatment by Deathboy 5 25 The Bells Ego Likeness Mix 6 01 Taken En Take Mix by En Esch 5 51 The Bells Interface Mix 5 18 Translate Broken Reception Mix by Manufactura 4 47 Havestar LA Malediction Mix by Mortis 4 29 Capsella Stochastic Theory Mix 4 36 Scin Tolchock Mix 5 12 Taken Shaken Mix by En Esch 5 28 2000s electronic album stub Category I Scintilla albums Optics Category 2007 albums Optics hu Optics pl Optics ru Optics ... more details
A Condenser is an optical Lens optics lens which renders a beam divergence divergent beam from a point source into a parallel beam illuminating an object. It is an essential part of any imaging device, such as microscopes , slide projectors, and telescopes. The concept is applicable to all kind of radiation undergoing optical transformation, such as electrons in electron microscopy , neutron radiation and synchrotron radiation optics. Category Lenses ... more details
Ross is the name of a succession of London based lens designers and their company. Andrew Ross 1798&ndash 1859 founded his company in 1830, from 1840 he began producing camera lenses signed A. Ross . During Andrew Ross s lifetime, the company was one of the foremost lens manufacturers and by the 1890s was also making Zeiss and Goerz lenses under licence for sale in the UK and the British Empire. Ross patented a Wide Angle lens design and Zeiss took this further to produce their EWA Protars, before World War 1 Ross and Zeiss worked quite closely together, but at the outbreak of War the British Government put Ross in control of the newly opened Carl Zeiss binocular and optical factory in Mill Hill, London. A 1902 Ross advertisements includes Ross Symmetrical Anastigmats, br Zeiss New Planar and Unar lenses, br Zeiss Convertible Anastigmats, br Goerz Double Anastigmats, etc. Ross also made some cameras from about 1855 to the late 1930s. A range of Ross Standard Reflex cameras is listed with an illustration in the 1935 British Journal Photographic Almanac, the sizes ranged from 3 x 2 up to Half Plate. In the mid 20th century, Ross continued to produce lenses, as well as binoculars, epidiascopes, etc. They had begun supplying lenses for Ensign cameras in the 1930s and after World War II Ross merged with Barnet Ensign, and the company later became Ross Ensign, lenses were also made for other companies such as Micro Precision Products MPP . Ross was taken over by Avimo in 1975 Avimo was later taken over by Thales Group Thales Optics. Sources Wilkinson, Matthew, and Colin Glanfield. A lens collector s vade mecum. CD publication Version 7 5 2001 7 May 2001 . br British Journal Photographic Almanac 1935 , Henry Greenwood & Co 1935 Category Lens manufacturers Category Photography companies of the United Kingdom Category Photography in the United Kingdom de Ross Unternehmen ... more details
refimprove date February 2012 For the unrelated North American telescope retailer Orion Telescopes & Binoculars Orion Optics is a telescope manufacturer in Crewe , England in the United Kingdom . They produce a wide range of Newtonian reflector s and advanced Maksutov telescope Maksutov catadioptric telescopes. A family run firm, Orion Optics are the only remaining major manufacturer of telescopes in the UK. They have recently produced a new range of very well received Dobsonian style reflectors. They also carry a range of Vixen telescopes Vixen equipment , and a large range of accessories. External links http www.orionoptics.co.uk Orion Optics Category Telescope manufacturers UK company stub astronomy stub ... more details
Optics Valley is a nickname for a region in southern Arizona , centered on Tucson , that includes a concentration of optics companies, spawned by the optics work at the University of Arizona College of Optical Sciences . ref cite book title Insiders Guide to Tucson author Mary Paganelli Votto publisher Globe Pequot year 2006 ISBN 0762741937 url http books.google.com books?id 29zWkAeTueAC&pg PA10&dq 22optics valley 22 22university of arizona 22&lr &as brr 3&ei pclASN WHoLGjgG89NCJBQ&sig 2vpt0uEZRFxjxYoC25c5SfEoUFc ref Based on the idea of a technology cluster, such as Silicon Valley , Optics Valley in the US is famous not only for the companies but also for observatories Kitt Peak National Observatory , Mount Graham International Observatory , and the Fred Lawrence Whipple Observatory on Mount Hopkins Arizona Mount Hopkins . ref cite book title A Visitor s Guide to the Kitt Peak Observatories author Leslie Sage and Gail Aschenbrenner publisher Cambridge University Press year 2004 ISBN 052100652X url http books.google.com books?id wcuhhpE4 wC&pg PA79&dq tucson kitt peak mount graham university arizona&lr &as brr 3&ei rMpASLjvDoegiwHJktSIBQ&sig yjrxWMhvtRRRyTxdXL6bVJreKSc ref ref cite web title Banking on Optics Valley The Old Pueblo has high hopes for high tech, but little time author ... January 4, 2001 ref There are other areas called Optics Valley in France ref cite book title Innovative ... books?id ZZfxljn69IgC&pg PA172&dq france optics valley&lr &as brr 3&ei zc5ASKf8HJ7wigG2t4yLBQ ...?id sMX0wI14 ZYC&pg PA252&dq china optics valley&lr &as brr 3&ei IM5ASNDxC4HIigGetPmIBQ&sig 7Us9ntWcKlMMvy0e1aj29X ... Research Organization Edmund Optics Lasertel NP Photonics, Inc. Prism Solar Technologies Raytheon ... links http www.aoia.org Arizona Optics Industry Association , a group of about 200 firms that earned ... of Optics Valley since 1998. Company started by a professor at the University of Arizona College of Optical Sciences. Category Geography of Arizona Category Optics ... more details
of lens are ambiguous with lens optics . File BiconvexLens.jpg thumb right 250px A lens. File Lens and wavefronts.gif right frame Lenses can be used to focus light. A lens is an optics optical device ... with a single element. Lenses are typically made of glass or transparency optics transparent ... lense History expand section history after 1758 date January 2012 See also History of optics Camera ... sunlight. ref name Nimrud lens ref Cite journaljournal Die Fortschritte der Physik publisher Deutsche ... name Kriss Cite journal last1 Kriss first1 Timothy C. last2 Kriss first2 Vesna Martich title History of the Operating Microscope From Magnifying Glass to Microneurosurgery journal Neurosurgery volume ... optics focus the sun s rays to produce fire . Some scholars argue that the archeological evidence ... journal title Lenses in antiquity first1 George last1 Sines first2 Yannis A. last2 Sakellarakis journal American Journal of Archaeology volume 91 issue 2 month Apr. year 1987 pages 191 196 jstor 505216 ..., these were primitive Lens optics Types of simple lenses plano convex lenses initially made by cutting ... convention of lens radii R sub 1 sub and R sub 2 sub Main Radius of curvature optics The signs of the lens ... axis to a spot known as the Focus optics focal point at a distance f from the lens. Conversely ... is coma optics coma , which derives its name from the comet like appearance of the aberrated image ... is caused by the dispersion optics dispersion of the lens material the variation of its refractive ... journal last Aristophanes title The Clouds year 424 BC authorlink Aristophanes ref A modern application ... Developments and Perspectives newspaper Journal of Sol Gel Science and Technology pages 71 79 year ... Back focal plane Bokeh Cardinal point optics Corrective lens Cylindrical lens Eyepiece F number Fresnel ... Photochromic lens Photographic lens Prime lens Prism optics Ray tracing physics Ray tracing Sunglass ... last Hecht year 1987 title Optics edition 2nd publisher Addison Wesley isbn 0 201 11609 X Chapters ... more details
Infobox Company company name Samyang Optics Company Limited company logo company type Public company Public Korean language Korean motto foundation 1972 founder location Masan , South Korea key people Moon Young Key small President small br Soung Jin Kim small CEO small area served Worldwide industry Optic products Photographic lens br Lens optics Lens for Closed circuit television CCTV br Electric car components ref http www.earthtimes.org articles press samyang optics announces partnership with,1139719.html Samyang Optics Announces Partnership With US Electric Car Maker ZAP for Korea Market Press Release ref num employees 105 subsid net income operating income assets revenue equity homepage http www.syopt.co.kr SyOpt.co.kr Samyang Optics Company Limited is a South Korea Korean company law company founded in 1972, manufacturing Lens optics optical equipment , Closed circuit television CCTV and Photography photographic accessories. All Samyang lenses are produced in the company s plant in Masan , South Korea . Samyang is known for producing Zoom lens varifocal and Prime lens monofocal lenses , Diaphragm optics autoiris and fixed iris lenses, interchangeable lenses that are compatible with the camera s produced by other companies. In 2004 it was merged with the Japan ese CCTV optical devices maker Seikou. Samyang produces lenses to fit cameras from Canon Inc. Canon , Nikon , Sony , Pentax , Samsung , Yashica , Olympus Corporation Olympus and Panasonic , plus a wide range of T mount lenses. Samyang SLR lenses are also branded as Vivitar, Rokinon, Walimex, Bower or Pro Optic. SLR lenses File Samyang 85mm 2684.jpg thumb right 200px Samyang 85mm f 1.4 IF Aspherical Manual ... Official Site http www.corporateinformation.com Company Snapshot.aspx?cusip C41010980 Samyang Optics ... Samyang Optics Polish Site http www.samyang.es Samyang Optics Espa a Category Manufacturing companies of South Korea it Samyang ru Samyang Optics ... more details
No footnotes date April 2009 Quantum optics is a field of research in physics , dealing with the application ... of quantum optics Light is made up of particles called photons and hence inherently is grainy quantized . Quantum optics is the study of the nature and effects of light as quantized photons. The first ... optics but was also crucial for the development of quantum mechanics as a whole. However, the subfields ... now with more emphasis on the properties of light, and the name quantum optics became customary. As laser ... very fruitful, interest in quantum optics rose. Following the work of Paul Dirac Dirac in quantum ... quantum optics, partly from theoretical computer science . Today s fields of interest among quantum optics researchers include parametric down conversion , Optical parametric oscillator parametric oscillation , even shorter attosecond light pulses, use of quantum optics for quantum information , manipulation ... a sub field often called atom optics , coherent perfect absorber s, and much more. Research into quantum optics that aims to bring photons into use for information transfer and computation is now ... s and electronics now have. Concepts of quantum optics According to quantum theory, light may ... mechanics is the fundament of most concepts of quantum optics Light is described in terms of field ... that absorption optics absorbs it is crucial for understanding experiments. Quantum electronics This term ... of laser operation where photons are interacting with electrons absorption optics absorption , spontaneous .... Today, the research output of this field is mainly used in quantum optics, especially for the part ... Hall effect and Quantum cellular automata . See also portal Physics Optics Optical phase space Optical ... and Quantum Optics Cambridge 1995 D. F. Walls and G. J. Milburn Quantum Optics Springer 1994 C ... Optics Cambridge 1997 W. P. Schleich Quantum Optics in Phase Space Wiley 2001 External links Spoken ... optics of the light field http www.rp photonics.com encyclopedia.html Encyclopedia of laser physics ... more details
Acousto optics is a branch of physics that studies the interactions between sound waves and light waves, especially the diffraction of laser light by ultrasound or sound in general. Image Beugungsbild.jpg thumb A diffraction image showing the acousto optic effect. Introduction Optics has had a very long and full history, from ancient Greece , through the renaissance and modern times. ref cite web last Taylor first L.S. title Optics Highlights 1. Ancient History url http www.ece.umd.edu taylor optics1.htm accessdate 2007 08 07 ref As with optics, acoustics has a history of similar duration, again starting with the ancient Greeks. ref cite web title The History of Acoustics url http www.wavemakers.com science content kb history of acoustics.cfm accessdate 2007 08 07 archiveurl http web.archive.org web 20070703020207 http www.wavemakers.com science content kb history of acoustics.cfm archivedate 3 July 2007 DASHBot deadurl no ref In contrast, the acousto optic effect has had a relatively short ... wave, being propagated in a medium of interaction, in 1922. ref cite journal last Brillouin first L. title Diffusion of Light and X rays by a Transparent Homogeneous Body journal Ann. Phys. Paris ... Debye Debye and Sears, ref Cite journal last Debye first P. last2 Sears first2 F.W. title On the scattering of light by supersonic waves journal Proc. Nat. Acad. Sci. USA volume 18 pages 409&ndash 414 ... by Lucas and Biquard. ref Cite journal last Lucas first R. last2 Biquard first2 P. title Optical properties of solid and liquid medias subjected to high frequency elastic vibrations journalJournal ... components improvements. Along with the current applications, acousto optics presents interesting ... been excited within a Transparency optics transparent medium. This then gives rise to the variation ... optics Sonoluminescence Schaefer Bergmann diffraction References references Category Diffraction Category Light Category Acoustics Category Nonlinear optics Category Waves de Debye Sears Effekt nl Akoesto ... more details
be corrected using Brown s distortion model. ref name brown Cite journal author Brown DC title Decentering distortion of lenses. journal Photogrammetric Engineering. volume 7 pages 444 462 year 1966 .... 2, 2012 ref DxO Labs Optics Pro can correct complex distortion, and takes into account the focus ... and RAW converter software. The optics of most of these lenses feature substantially more ... http toothwalker.org optics distortion.html title Distortion author Paul van Walree work Photographic optics accessdate 2 February 2009 Cite web url http sites.google.com site jasondevilliers home ... 2010 DEFAULTSORT Distortion Optics Category Optics de Verzeichnung el fr Distorsion ... more details
in fiber optics where two pieces of correct length of polarization maintaining optical fiber ... ,Nicholas J. Diorio, Jr., Michael R. Fisch, John L. West, Journal of Applied Physics Volume 90, Number 8 3675 3678 2001 ref It is also possible to depolarize light using fiber optics . See also ... more details
. Atmospheric optics deals with how the unique optical properties of the Earth s atmosphere cause ... higher in the sky Main Moon illusion In the Book of Optics 1011 1022 A.D. , Ibn al Haytham argued ... Fundamentals of Atmospheric Optics author Yu Timofeev and A. V. Vasil ev page 174 date 2008 05 01 accessdate ... , ref name frank cite journaljournalJournal of Applied Meteorology doi 10.1175 1520 0450 39.10.1754 ... refracted by the ice crystals and may split into colors because of dispersion optics dispersion . The crystals behave like prism optics prism s and mirror s, refracting and reflecting sunlight ... them. ref cite book url http books.google.com ?id rF4MAAAAYAAJ&pg PA206&dq glory fog optics degree angle ... and its associated rain . ref cite journal url http books.google.com ?id KtkDAAAAMBAJ&pg PA148 ... false journal Popular Mechanics page 148 title Make Your Own Weather Forecasts author Dennis Eskow ...&pg PA330&dq optics sundog coloration book v onepage&q&f false title A world of weather fundamentals ...&dq optics sundog cause ice book v onepage&q&f false page 43 title Fundamentals Of Optics author Devaraj ... halo dogalt.htm title Effect of solar altitude publisher Atmospheric Optics accessdate ... Optics accessdate 2011 04 01 date 2009 08 02 author Les Cowley ref clear Glory Image Solar ... . A rainbow is an optics optical and meteorology meteorological phenomenon that causes a optical ... . ref name back cite journal title The Sky url http books.google.com ?id 494DAAAAMBAJ&pg RA1 PA58&dq rainbow colors roy g. biv book v onepage&q rainbow 20colors 20roy 20g. 20biv 20book&f false journal ... HyperPhysics accessdate 2010 08 11 year 2009 unused data date 12 12 ref ref cite journal last D. J. K. O Connell title The green flash and other low sun phenomena journal Castel Gandolfo Vatican ... of Messina , were fairy castles in the air, ref cite journal url http books.google.com ?id lTlOAAAAYAAJ&pg PA372&dq Fata Morgana mirage naming v onepage&q&f false journal Monthly Weather Review ... more details
Cleanup date October 2010 Optical aberration In optics , piston is the mean value of a wavefront or Phase waves phase profile across the pupil of an optical system. The piston coefficient is typically expressed in wavelength s of light at a particular wavelength . Its main use is in curve fitting wavefronts with Cartesian polynomials or Zernike polynomials . However, similar to a real V8 engine piston moving up and down in its cylinder, optical piston values can be changed to Bias electrical engineering bias the wavefront phase mean value as desired. As phase values can only vary from zero to 2 , then repeat in either direction termed phase wrapping , changing the piston coefficient changes the zero phase value contour locations across the wavefront. This property is critical to the operation of phase measuring interferometers , which give not only the magnitude but also the sign wikt convexity convexity or wikt concave concavity of a wavefront under test. Piston is physically created in the interferometer by piezoelectric actuators that translate the Fizeau interferometer reference surface along the optical axis by precise fractions of the test wavelength, usually by one quarter of a wavelength. This changes the interferometric fringe patterns and allows direct calculation of the exact wavefront error. Piston and Tilt optics tilt are not actually true optical aberration optics aberrations , as they do not represent or model curvature in the wavefront. Defocus is the lowest order true optical aberration. If piston and tilt are subtracted from an otherwise perfect wavefront, a perfect, aberration free image is formed. References Malacara, D., Optical Shop Testing Second Edition , John Wiley and Sons, 1992, ISBN 978 0 471 52232 4. DEFAULTSORT Piston Optics Category Optics ... more details
Euclid s Optics , is a work on the geometry of vision written by the Greek mathematician Euclid around 300 BC. The earliest surviving manuscript of Optics is in Greek and dates from the 10th century AD. The work deals almost entirely with the geometry of vision, with little reference to either the physical or psychological aspects of sight. No Western scientist had previously given such mathematical attention to vision. Euclid s Optics influenced the work of later Greek, Islamic, and Western European Renaissance scientists and artists. Historical significance See also History of optics Writers before Euclid had developed theories of vision. However, their works were mostly philosophical in nature and lacked the mathematics that Euclid introduced in his Optics . ref Lingberg, D. C. 1976 . Theories of Vision from Al Kindi to Kepler . Chicago University of Chicago Press. p. 12. ref Efforts by the Greeks prior to Euclid were concerned primarily with the physical dimension of vision. Whereas Plato and Empedocles thought of the visual ray as luminous and ethereal emanation , ref Zajonc, A. 1993 . Catching the Light The Entwined History of Light and Mind . Oxford Oxford University Press. p. 25. ref Euclid s treatment of vision in a mathematical way was part of the larger Hellenistic trend to quantify a whole range of scientific fields. Because Optics contributed a new dimension ... s Optics , which has been called one of the most important works on optics written before Newton ... , Leon Battista Alberti Alberti , and Albrecht D rer D rer used Euclid s Optics in their own ... Similar to Euclid s much more famous work on geometry, Euclid s Elements Elements , Optics begins ... about vision. The postulates in Optics are blockquote Let it be assumed br 1. That rectilinear rays ... of Ancient Mathematical Optics A Source Based Guided Study . Philadelphia American Philosophical ... s Theory of Visual Perception An English Translation of the Optics with Introduction and Commentary ... more details
About dispersion of waves in optics other forms of dispersion Dispersion disambiguation File Prism rainbow schema.png thumb right In a prism, material dispersion a wavelength dependent refractive index causes different colors to refraction refract at different angles, splitting white light into a rainbow ... PNr 0114.jpg thumb A compact fluorescent lamp seen through an Amici prism In optics , dispersion is the phenomenon ... first Max authorlink Max Born last2 Wolf first2 Emil title Principles of Optics publisher Cambridge .... For example, material dispersion leads to undesired chromatic aberration in a lens optics lens ... different components of a signal smears out the signal in time. Material dispersion in optics ... of dispersion in optics is the separation of white light into a optical spectrum color spectrum by a triangular prism optics prism . From Snell s law it can be seen that the angle of refraction ... the wavelength of the light is close to an absorption optics absorption resonance of the medium. When ... can appear to exit a medium before it enters. ref cite journal author Wang, L.J., Kuzmich, A., and Dogariu, A. title Gain assisted superluminal light propagation journal Nature volume 406 page 277 year ... journal author Stenner, M. D., Gauthier, D. J., and Neifeld, M. A. title The speed of information in a fast light optical medium journal Nature volume 425 page 695 year 2003 bibcode 2003Natur.425..695S ... is to use soliton optics soliton pulses in the regime of anomalous dispersion, a form of optical pulse which uses a nonlinear optics nonlinear optical effect to self maintain its shape solitons have ... factor in determining the duration of the pulses emitted by the laser. A pair of Prism optics ... commons Dispersion Dispersion optics http ioannis.virtualcomposer2000.com spectroscope characteristics.html ... Animations demonstrating optical dispersion by QED Glass science DEFAULTSORT Dispersion Optics Category Optics Category Glass physics af Dispersie optika ar bg ca ... more details
Infobox company company name Net Optics, Inc. logo Image NetOptics.jpg 240px company type Private Company foundation 1996 company slogan Customer First location Santa Clara, California key people Eldad Matityahu, Board Chairman br Bob Shaw, President & CEO products Network tap s, Bypass Switch es, Media Converters, Link aggregation Aggregation Tap s, Regeneration Tap s, data monitoring switch es homepage http www.netoptics.com www.netoptics.com Net Optics is a manufacturer of network monitoring and intelligent access solutions for physical and virtual networks. ref name bizweek http investing.businessweek.com ... and reseller networks. Net Optics is a private company and supports approximately 6,300 customers ... read 378274.htm Sys Con Media.com Net Optics, Inc. Introduces iBypass for Fail Safe IPS Security ...?DocNumber 208291 The Tolly Group Net Optics 10 100 1000 iBypass Switch Evaluation ref The bypass switch ... on multiple monitoring ports. Data monitoring switches Deleted image removed Image Net Optics Director.PNG 400px thumb Net Optics Data monitoring switch , Director sup TM sup deletable image ... types may include copper, multimode fiber, and singlemode fiber. For example, Net Optics media converters ... Optics products include iTap technology, which provides the ability to remotely manage devices through ... security id 1177970450.html Enterprise IT Planet.com Net Optics Taps 3. http www.processor.com ... Net Optics, Inc. Introduces iBypass for Fail Safe IPS Security Deployments 5. http www.tolly.com DocDetail.aspx?DocNumber 208291 The Tolly Group Net Optics 10 100 1000 iBypass Switch Evaluation ... 1663 The Network Encyclopedia Media Converter references External links http www.netoptics.com Net Optics website http www.lovemytool.com blog 2008 04 bob shaw.html Interview with Net Optics CEO Bob Shaw ... Optics, Oracle, Intel http products.datamation.com networking lan 1177970450.html Summary of Products Net Optics Category Manufacturing companies Category Networking hardware Category Companies established ... more details
Nonimaging optics also called anidolic optics ref name NIO Roland Winston et al.,, Nonimaging Optics ... to Nonimaging Optics , CRC Press, 2008 ISBN 978 1 4200 5429 3 ref is the branch of optics concerned ... optics, the techniques involved do not attempt to form an image of the source instead an optimized ... The two design problems that nonimaging optics solves better than imaging optics are ref William J. Cassarly, Taming light using nonimaging optics , SPIE Proceedings Vol. 5185, Nonimaging Optics Maximum ... For a given concentration, nonimaging optics provide the widest possible Acceptance angle solar concentrator ... to traditional imaging optics such as parabolic reflector s or fresnel lens es , the main advantages of nonimaging optics for concentrating solar energy are wider Acceptance angle solar concentrator ... tracking imperfectly manufactured optics imperfectly assembled components movements of the system ... kinds of optics with different geometries can be tailored for different applications Also, for low concentrations, the very wide Acceptance angle solar concentrator acceptance angles of nonimaging optics ... disadvantage of nonimaging optics when compared to parabolic reflector s or fresnel lens es is that, for high .... That, however, is only noticeable when the optics are aiming perfectly towards the sun, which is typically not the case because of imperfections in practical systems. Illumination optics Examples of nonimaging optical devices include optical waveguide optics light guide s, nonimaging mirror reflector s, nonimaging lens optics lenses or a combination of these devices. Common applications of nonimaging optics include many areas of illumination engineering lighting . Examples of modern implementations ... display system s and luminaire s. When compared to traditional design techniques, nonimaging optics ... optics color mixing capabilities combination of light sources and light distribution to different places ... optics using solar energy are anidolic lighting or light tube solar pipes . Other applications ... more details
Encyclopedia
top
