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Topic: Geometric optics

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	Optics - Wikipedia, the free encyclopedia
		Optics (appearance or look in ancient Greek) is a branch of physics that describes the behavior and properties of light and the interaction of light with matter.
		Geometric optics, sometimes called ray optics is the branch of optics that describes light propagation in terms of rays.
		The ray in geometric optics is perpendicular to the wavefront in wave optics.
	en.wikipedia.org /wiki/Geometric_optics (646 words)

	Optics article - Optics list optical topics physics light light matter optical phenomena - What-Means.com (Site not responding. Last check: 2007-10-06)
		Optics is a branch of physics that describes the behavior and properties of light and the interaction of light with matter.
		Classical or geometric optics, sometimes called ray optics is the branch of optics that describes light propagation in terms of rays.
		The ray in geometric optics is perpendicular to the wavefront in physical optics.
	www.what-means.com /encyclopedia/Optics (372 words)

	Geometric Optics
		In geometric optics, light is assumed to travel in a defnite direction with relatively little diffraction.
		In quantum optics, light is assumed to have both wave and particle properties.
		In geometric optics, light is assumed to travel in a definite direction with relatively little diffraction.
	www.hypertextbook.com /physics/waves/optics (195 words)

	Pantar Weblog: Optics
		Also known as geometric optics, the discipline arose between the 6th and 3rd BCE centuries in Greece, when painters, philosophers and mathematicians began investigating the mechanics of vision.
		While optics achieved prominence as a science, it is likely that the impulse for research into the principles of vision began with Classical painters who developed naturalism as the dominant aesthetic of Greek art.
		Optics is a slender companion volume that presents a modified form of geometric reasoning.
	www.pantar.com /blog/archives/000026.html (2040 words)

	Geometric Optics (Site not responding. Last check: 2007-10-06)
		Geometric Optics -- from Eric Weisstein's World of Physics...
		Geometric optics and the wave equation on manifolds with corners...
		Geometric Optics as a means of understanding Geodesic Motion...
	www.scienceoxygen.com /phys/52.html (152 words)

	On the Symplectic Structures Arising in Geometric Optics - nena, Nasarre, On (ResearchIndex) (Site not responding. Last check: 2007-10-06)
		Abstract: Geometric optics is analysed using the techniques of Presymplectic Geometry.
		Cari~nena J.F. and Nasarre J., 1996 On the Symplectic structures arising in Geometric Optics, Forts.
		4 Lie algebraic theory of geometrical optics and optical aberr..
	citeseer.ist.psu.edu /nena96symplectic.html (500 words)

	VT Physics Lecture Demo L21
		This is a more modern version of the flboard optics demonstration in a more easily-used package.
		A Ray Optics Demonstration Kit consisting of a source of 5 parallel laser beams; assorted mirrors, lenses and prisms (bottom photo); a collection of background templates that schematically show the components of various optical instruments (eye, camera, telescope, etc.).
		Demonstrate the geometric optics of the various components, using the appropriate templates.
	www.phys.vt.edu /~demo/demos/l21.html (159 words)

	Definition: geometric optics (Site not responding. Last check: 2007-10-06)
		geometric optics: The branch of optics that describes light propagation in terms of rays.
		Note 1: Rays are bent at the interface between two dissimilar media, and may be curved in a medium in which the refractive index is a function of position.
		Note 2: The ray in geometric optics is perpendicular to the wavefront in physical optics.
	www.atis.org /tg2k/_geometric_optics.html (95 words)

	Amazon.ca: Books: Lagrangian Optics (Site not responding. Last check: 2007-10-06)
		In geometrical optics, light propagation is analyzed in terms of light rays which define the path of propagation of light energy in the limit of the optical wavelength tending to zero.
		All of geometric optics can be derived from Fermat's principle which is an extremum principle.
		In Lagrangian Optics, the authors begin with Fermat's principle and obtain the Lagrangian and Hamiltonian pictures of ray propagation through various media.
	www.amazon.ca /exec/obidos/ASIN/0792375823 (305 words)

	geometric optics - is about (Site not responding. Last check: 2007-10-06)
		The strength of Geometric Optics is rooted in its simple, targeted...
		With Geometric Optics, students use a simulated optics bench to observe how optical systems project light and...
		Geometric optics is the study of how light travels in a straight line...
	www.angelfire.com /ab8/angelte/11/geometric-optics.html (183 words)

	PHY 140 Geometric Optics (Site not responding. Last check: 2007-10-06)
		This course is the second semester in a sequence to introduce optics and its applications.
		Building on the foundations of PHY 140 Introduction to Optics you will study more involved systems of lenses, including stops, pupils and windows and aberrations.
		Topics from wave optics include coherence, types of interferometers and their uses, thin films, Fresnel and Fraunhofer diffraction, scattering, production and modification of polarized light.
	webpages.charter.net /laseroptics/courseoutlines/PHY141outline.html (526 words)

	Electro-Optics (Site not responding. Last check: 2007-10-06)
		Introduces the student to the principles and theory of light as a geometric ray and gives an elementary treatment of image formation.
		Covers basic concepts in fiber optics such as dispersion, attenuation, and single-mode and multimode propagation.
		Fiber optic test equipment such as optical time domain reflectometers and optical power meters will be discussed and investigated.
	www.iup.edu /registrar/0203/course/eopt.shtm (539 words)

	Electro-Optics (Site not responding. Last check: 2007-10-06)
		Introduces the principles and theory of light as a geometric ray and gives an elementary treatment of image formation.
		The spatial and temporal properties of lasers are investigated along with other characteristics such as modes of oscillation.
		Fiber optic test equipment such as optical time domain reflectometers and optical power meters is discussed and investigated.
	www.iup.edu /registrar/catalog/course/eopt.shtm (456 words)

	CEMF: Rays
		One approach, the simplest, is called variously ray, Gaussian or geometric optics.
		In this context the variation principle is called the Fermat principle which states that a ray always chooses a trajectory that minimizes [6] the optical path length -- viz.
		The analogy between ray optics and particle mechanics is most striking when the equations of ray optics are expressed in Hamiltonian form.
	people.deas.harvard.edu /~jones/ap216/lectures/ls_1/ls1_u2/ls1_unit_2.html (1141 words)

	A brief history of geometric optics
		Hero of Alexandria demonstrated that by adopting the rule that light rays always travel between two points by the shortest path (or, more rigorously, the extremal path), it is possible to derive the law of reflection using geometry.
		In 1658 the French mathematician Pierre de Fermat demonstrated that all three of the laws of geometric optics can be accounted for on the assumption that light always travels between two points on the path which takes the least time (or, more rigorously, the extremal time).
		This erroneous idea held up progress in optics for over one hundred years, and was not conclusively disproved until the mid-nineteenth century.
	farside.ph.utexas.edu /teaching/302l/lectures/node107.html (643 words)

	Geometric Optics - Table of Contents (Site not responding. Last check: 2007-10-06)
		Geometric optics is the study of how light travels in a straight line, refracts, or reflects as it interacts with opaque, clear, or reflective material.
		The concept of a ray along with the laws of geometry can give us a great deal of information about the propagation of the light.
		One might say, then, that geometric optics consists of treating light as a ray.
	beer.hro.nl /optica/html (164 words)

	Geometric Optics
		The bulb for the light source used in this demostration is expensive so please be sure to set up power supply between 5 and 6 volts.
		Blackboard optics: A source of 5 parallel light beams, various lenses, mirrors and their combinations attached to the flboard.
		Interchangeable lenses to show normal, short-sight, and far-sight vision as well as corrective lenses (glasses) are avaiable.
	physics.ucsc.edu /lecturedemonstrations/optics/geometric.html (348 words)

	Amazon.com: Books: Geometric, Physical, and Visual Optics (Site not responding. Last check: 2007-10-06)
		Geometrical and Visual Optics : A Clinical Introduction by Steven H. Schwartz
		With nearly 30 years of experience in teaching optics, Dr. Keating offers a new edition of this reader friendly book to enhance your understanding of geometric, physical and visual optics.
		Written primarily for optometry students, the core of basic optics, including thin lenses, ametropia corrections, accommodation, introductory astigmatism and refraction techniques, prisms, and prisms in lenses, are conveniently contained in the first 12 chapters.
	www.amazon.com /exec/obidos/tg/detail/-/0750672625?v=glance (720 words)

	Learn more about Optics in the online encyclopedia. (Site not responding. Last check: 2007-10-06)
		Learn more about Optics in the online encyclopedia.
		Enter a phrase or search word in the box below.
		Hint: Play with putting spaces before and after your words to see the different results you get.
	www.onlineencyclopedia.org /o/op/optics.html (425 words)

	SparkNotes: Geometric Optics: Glossary for Geometric Optics
		Moreover, the incident and reflected rays, as well as the normal to the surface, all lie in the same plane.
		This means that it is impossible to focus rays from a polychromatic source accurately.
		One of the most significant such aberrations is spherical aberration--this arises due to the results of geometric optics being approximations that only hold near the center of the lens.
	www.sparknotes.com /physics/optics/geom/terms.html (1269 words)

	Geometric Optics
		The strength of Geometric Optics is rooted in its simple, targeted focus on individual concepts.
		Geometric Optics' simplicity extends to its interface, which is straight-forward and easy to use.
		The HTML page browser format will be familiar to Internet users, and the choice of Windows or Macintosh platforms makes it a versatile package for any classroom.
	webassign.net /pas/geometric_optics/geometric_optics.html (356 words)

	Optics - Encyclopedia.WorldSearch (Site not responding. Last check: 2007-10-06)
		Newton's Telecom Dictionary, 21st Edition: Covering Telecommunications, Networking, Information Technology, The Internet, Fiber Optics, RFID, Wireless, and VoIP
		Author Jeremy Birn has long been regarded as a talented computer graphics artist and generous writer, and...
		Principles of Optics: Electromagnetic Theory of Propagation, Interference and Diffraction of Light (7th Edition)
	encyclopedia.worldsearch.com /optics.htm (444 words)

	Notes on Geometric Optics
		Sign-conventions and Huygen’s principle in Geometric Optics by Chiu (4/10/02)
		a self consistent “sign-convention” table in geometric optics, and
		The latter has been derived through a global geometric consideration.
	www.ph.utexas.edu /~itiq/303L/chiu/instructor/gopticssigns.htm (571 words)

	Nonlinear Geometric Optics (Site not responding. Last check: 2007-10-06)
		Geometric optics is the study of high frequency solutions of hyperbolic partial differential equations.
		This resolves the classical wave-particle controversy in optics.
		In recent years some of the ideas have been extended to nonlinear hyperbolic partial differential equations.
	www.siam.org /meetings/wp98/ip8.htm (109 words)

	Diffractive Nonlinear Geometric Optics for Short Pulses (Site not responding. Last check: 2007-10-06)
		Diffractive Nonlinear Geometric Optics for Short Pulses: SIAM Journal on Mathematical Analysis Vol.
		This paper considers the behavior of pulse-like solutions of length $\varepsilon \ll 1$ to semilinear systems of hyperbolic partial differential equations on the time scale $t=O(1/\eps)$ of diffractive geometric optics.
		The amplitude is chosen so that nonlinear effects influence the leading term in the asymptotics.
	epubs.siam.org /sam-bin/dbq/article/40358 (213 words)

	Curriculum Unit - Geometric Optics
		2)Make the connection that answering those questions motivates the reason behind what we are about to cover under the topic of "Geometric Optics".
		In the 17th century Isaac Newton postulated that light moves as a stream of particles while Christian Huygens supported the wave theory of light.(inform the students to be aware of the wave or particle nature of the light, but a detailed discussion of the matter is not the objective of this unit).
		The geometric analysis of these rays and beams towards understanding of the optical phenomena is called Geometric Optics
	educ.queensu.ca /projects/science_teaching/other/cur_unit/g12phys/optic.html (1945 words)

	Course Description for Optometry GEOMETRIC OPTICS (Site not responding. Last check: 2007-10-06)
		The principles of geometrical optics as applied to refracting and reflecting surfaces, thin lenses, thick lenses, and lens systems.
		The optics of various ophthalmic instruments and techniques will be examined.
		A student may not receive credit for both Optometry 406 and Optometry 505.
	www.umsl.edu /curriculum/COURSES/DESCRIPTION/4560/4560/406999945.html (72 words)

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