Deflection from a straight path undergone by a light ray or energy wave in passing obliquely from one medium (as air) into another (as glass) in which its velocity is different.
The change in direction of a ray of light as it passes through two media through which light travels at different speeds.
the bending of light (or other waves) that takes place at a boundary between two different mediums. Refraction is due to a change in the speed of light as it passes from one medium to another.
The change of direction (deflection) of a light ray or energy wave from a straight line as it passes obliquely from one medium (such as air) to another (such as glass) in which its velocity is different.
Refers to the bending of the ray-path of an RF wave from a straight vertical line due to the earth's atmosphere (i.e., air density variances). Refractivity is commonly measured in N units.
Process by which the direction of a wave moving in shallow water at an angle to the bathymetric contours is changed so that the wave crests tend to become more aligned with those contours.
Descibes the behavior of waves as the pass from one medium to another. Waves will change speed, either slowing up or slowing down, causing a corresponding change in wavelength. With 2-D or 3-D waves, if the waves do not approach the medium in a "head-on" way, part of the wave will change speed before another part and the wave will change its direction of motion (propagation). View a model of refraction using a car ( movie). Back to Wave Index
The bending of light at a particular angle as it passes through a transparent medium (such as glass or water). Rainbows are causes by light refracting and reflecting (twice) inside raindrops.
A change of direction of a ray of light ( or other radiation ) when it passes from one medium to another of different optical density.
Bending, as occurs when light travels from one medium to another. The discussion of refraction begins on this page of this module.
The change in direction of a ray of light as it enters a gemstone.
1. The bending of a ray or wave of light from one medium to a medium of a different density. 2. The amount of error in the eye and the correction of that error with glasses to restore normal vision.
The bending of waves on passing between media of different veolocities.
It is the change in the direction of a ray of light which enters a gemstone.
The bending of light from one course in one medium to a different course through another medium of different refractive index.
The change in direction of a wave as it passes from one medium to another of different density, which changes its velocity.
The change of direction of a light ray passing from one medium to another of different density.
The bending of lightwaves or rays as they go from one material to another due to the difference in velocities in the materials.
The bending of electromagnetic radiation by its passage through a medium of a high refractive index. Light is refracted by passing through a lens, water, or the atmosphere.
The bending of a wave when it crosses a boundary between media due to a change in velocity of the wave. Until it reaches the ionosphere, a radio wave propagates in a straight line. Once in the ionosphere, it may be refracted back towards the ground. The amount of refraction depends on the electron density of the ionosphere and the operating frequency.
The bending of light which occurs in image based lens machanisms.
Refraction is a change of direction of a ray of light. Light that is traveling in a straight line alters course - bends - when it strikes light-transmitting substances at any angle other than perpendicular. It is good practice to have a model sign a Release upon the conclusion of a photo session.
The bending of light as it passes through two dissimilar materials or in a medium whose refractive index varies smoothly. Important in fiber optic technology.
(re'-frac-tion) The bending of light as it moves between materials with different indices of refraction.
The deflection of a wave moving in shallow water at an angle to the depth contours, which causes the advancing wave to bend toward alignment with the depth contours.
The process by which the direction of a WAVE moving in SHALLOW WATER at an angle to the bottom contours is changed. The part of the WAVE moving shoreward in shallower water travels more slowly than that portion in deeper water, causing the WAVE to turn or bend to become parallel to the contours. See Figure 13.
Change in direction of any wave caused by a local change in its velocity of propagation. This is caused by a change in the optical density of the propagation item.
The bending of light as it enters and leaves a substance that transmit light at a different speed. An ice crystal refracts light at a 22 degree angle.
The bending of light rays passing from one medium into another having a different index of refraction.
The bending of electromagnetic radiation as it passes from one medium to another or between parts of a medium that has varying properties. The index of refraction of a substance is the ratio of the speed of light in a vacuum to that in the substance.
the bending of light when it passes across the boundary between two media with different indices of refraction.
The bending of a seismic wave as it enters a material of different density, or, the bending of a beam of light as it enters a material of different refractive index.
The measure of how much a given material bends light.
The deflection of a wave as it passes from one medium to another, eg through a lens.
The bending of white light upon entering a new dimension, such as from air to water or from air to a crystal, and splitting the white light into the colors of the spectrum.
1. Deviation or bending of rays of light when passing from one clear substance to another of a different density. 2. The determination of refractive errors in the eye and their correction with lenses.
The deflection of a ray of light or of an energy wave (such as a seismic wave) due to its passage from one medium to another of differing density, (like a wave passing from air to water).
The is the bending of light when it passes through another substance, such as glass or water.
The bending of light as it passes through materials with different indices of refraction.
The change in speed and direction of light when it crosses the boundary between two transparent objects of different densities, such as when light passes from air to water, or when light passes through a glass of water.
the bending of waves when they pass from one transparent medium (or vacuum) to another (e.g., sunlight bending as it passes through the Earth's atmosphere).
The tendency of a wave to bend as it passes from one transparent medium to another.
is a test to determine the best eye glasses or contact lenses to correct a refractive error (myopia, hyperopia, astigmatism) OR the bending of light by the use of a lens or other material.
The change in direction that occurs when a wave encounters the interface between two media.
the process by which a wave's direction of propagation changes as it travels across a boundary between two materials. This bending is caused by the speed of the wave being different in the two materials.
The change in the direction of light rays when they pass from one transparent medium to another of a different density. Errors in refraction occur when light rays do not come to a focus on the retina due to curvature of the cornea or lens, causing nearsightedness, farsightedness, or astigmatism.
the change in direction of a propagating wave (light or sound) when passing from one medium to another
the amount by which a propagating wave is bent
the bending of light that occurs at the interface between two transparent media. It occurs when the speed of light changes
a keyword which tells POV-Ray to refract light that is being transmitted by an object. You also need to specify an index of refraction. ( Language Reference)
The change in direction of a wave on reaching a boundary of different density and velocity.
is the bending of light due to a gradient in density, such as the bending of light around the limb of a planet's atmosphere. There are many forms of Resonance between planetary objects, but the simplest is when one object orbits the Sun (or a satellite orbits a planet) in exact proportion to another object's orbit. For example, Pluto orbits the Sun twice for every 3 times Neptune orbits, putting them in a 2:3 resonance. Most of the objects in the solar system spin and orbit the Sun in the same direction - counter-clockwise looking down on the solar system from above. Retrograde objects have suffered collisions that caused them to spin or orbit in the opposite direction.
The bending of waves by bars and shoals that can cause the concentration of wave energy on a portion of the shoreline, resulting in accelerated beach erosion.
The bending of, most commonly, a light ray when it travels from one medium to another, e.g., air to water. The refraction occurs at the point where the light passes from one material to another and is caused by the light traveling at different velocities in the different media.
The bending of light rays passing from one transparent medium (or a vacuum) to another.
The change in the direction of a light ray when passing from one medium into another of a different refractive index, e.g. when light passes from air into water.
Redirection of light rays as they pass through the lens.
The bending of a light ray as it passes from a less dense medium (air) into one of greater density (a gemstone). The strength of a gemâ€(tm)s ability to bend light is an indication of its potential brilliance as well as a principal means of gem identification.
The deflection of linear light as it passes between media of differing densities. Upon entering the earth's atmosphere the light from a stellar source is refracted toward the earth's surface resulting in an apparent or observed altitude greater than the true altitude.
is the bending of light rays in order to focus them. The cornea and the lens achieve refraction of light which passes through the eye. Optimal focusing of light in the eye results in a clear image being received by the brain. secondary cataract is any cataract that develops from a known cause, such as chronic iritic or drugs (steroids). This term also designates a clouding of the lens capsule or membrane that supports an intraocular lens after cataract surgery.
In the optical context, refraction refers to the process of changing the light path in order to focus. It is also used to describe how the ophthalmologist determines, what type of glasses are needed for a person.
The process by which the direction of a moving wave is changed due to its interaction with the bottom topography. Wave heights may be increased or decreased by refraction.
When sound changes direction as it passes through media exhibiting different speeds of sound. E.g. warm air near the ground and cooling with altitude, will cause sound waves to bend upwards. The inverse will cause sound waves to bend downwards, allowing us to hear sounds over great distances.
The bending and changing of velocity as light passes from one substance to another.
It is the bending of white light when it enters a new dimension, like air to water or from air to crystal, and thereafter the white light splits into the colors of the spectrum.
The change in direction of travel of an electromagnetic wave as it passes between two areas which have a different refractive index.
as light travels from one medium into a medium with higher or lower density, for example from air into water or from the vacuum of space into earth's atmosphere, the path of the light is bent slightly. This causes our legs to look shorter in a swimming pool, and allows us to see the sun while it is still below the horizon. (See atmospheric refraction.)
Redirection of light by its passing from one medium to another (e.g: from glass to air).
Refraction occurs when a wave moves from one material to another. The speed, amplitude, and wavelength of the wave will change, and its direction of motion may change. Bending Waves
The bending of sound waves by a change in the density of the transmission medium, such as tem-perature gradients in air due to wind.
deviation in the course of rays of light when passing from one transparent medium into another of different density; determination of refractive errors of the eye
The action of bending a light wave. When light enters an object along a set path, refraction causes it to leave along a different path.
The bending of electromagnetic rays by properties of the medium traversed.
Bending of a sound wave passing through a boundary between two media; may also occur when physical properties of a single medium change along the propagation path.
1. The altering of the pathway of light from its original direction as a result of passing obliquely from one medium to another of different index of refraction. 2. The refractive and muscular state of the eyes, or the act or process of determining and/or correcting it
Important optical effect, the deviation of light when it passes from one medium to another, e.g. air to diamond. See Refractive Index.
The effect of the atmosphere on a ray of light as it travels from space through the atmosphere of the Earth and into the eye of the observer. The closer the celestial object is to the horizon, the larger the effect. The maximum value, at standard conditions, is about 34'.
bending of light through different objects
The deflection or bending of electromagnetic waves when they pass from one kind of transparent medium into another.
bending of a light beam upon passing from one medium into another.
1) the bending of light rays in passing from one transparent medium into another of different density 2) determination of refractive errors of the eye and correction by prescriptive lenses
The changing of direction of a wave as it leaves one medium and enters another medium of a different density.
The change in the velocities and angles of light rays as they pass obliquely from one medium to another of a different density.
Where an optician checks your vision by using a series of different lenses, each lens refracts (bends) light in a different manner. Commonly known simply as the sight test.
The bending of light as it enters a gemstone and slows down.
Changes in the direction of energy propagation as a result of density changes within the propagating medium. In weather terms, this is important on determining how a radar beam reacts in the atmosphere.
The bending of a ray of light at the interface of two optical media of differing indices of refraction. The term used to describe the act of measuring an error of refraction of the eye.
The bending of light as it passes between two substances of different densities is called refraction. Refraction occurs because light travels through different substances at different speeds. www.studyisland.com If you have ever half submerged a straight stick into water, you have probably noticed that the stick appears bent at the point it enters the water. This optical effect is due to refraction. As light passes from one transparent medium to another, it changes speed, and bends. How much this happens depends on the refractive index of the mediums and the angle between the light ray and the line perpendicular ( normal) to the surface separating the two mediums ( medium/medium interface). Each medium has a different refractive index. The angle between the light ray and the normal as it leaves a medium is called the angle of incidence. The angle between the light ray and the normal as it enters a medium is called the angle of refraction. http://www.ps.missouri.edu/rickspage/refract/refraction.html
the displacement of light rays through a prism. In this case it refers to water and the perception of objects as seen through the surface of bodies of water.
The bending of light rays by the use of a lens or other refractive material (i.e. water).
refract Bending of light as it passes through a surface, such as the surface of water or glass. Different colors of light bend by different amounts. Use the "back" button to return to the lesson.
The bending of light as it passes from one medium to another. I.e. Light passing through a prism undergoes refraction... causing white light to be bent into a "rainbow" of colors. A true rainbow, however, is the result of a combination between reflection and refraction of light within raindrops and drizzle.
The bending of light wave as they pass from one medium to another.
Bending or changing of direction of light ray when passing from one medium into another. Stick a pencil in a glass of water and look at it, and you will see howlight refracts.
The bending of elecrtomagnetic rays as they pass from one medium to another.
the process whereby radiation experiences a change in direction as a result of a change in density of the medium or media through which it travels
The effect of a lightwaves being bent as they moves from one medium into another. Refractive index is a ratio between the speed of light in air, and the speed of light while traveling within a stone. Highly useful measurement in determining a gemsone's identity.
Changes in speed (and sometimes direction) when light or electrons pass through a specimen.
The bending of electromagnetic rays as they pass from one medium into another.
Sounds waves refract, or bend, as they travel around the edges and through openings of objects.
(re-frac´-tion) The deflection of a ray of light or of an energy wave (such as a seismic wave) due to its passage from one medium to another of differing density, which changes its velocity.
The bending of light rays as they pass through a diamond or gemstone.
The refraction of light is the bending of light as it passes from one medium to another.
The bending of light as it passes through areas of different density, such as from air through ice crystals.
The bending of light rays caused by prisms and lenses. See power, refractive.
The tendency of wave crests to become parallel to bottom contours as waves move into shallower waters. This effect is caused by the shoaling process which slows down waves in shallower waters.
In gems, the bending of light as it enters the stone and slows down.
The bending effect that occurs when electromagnetic waves travel from one medium to another with different properties.
The deflection of a light ray from a straight path when it passes at an oblique angle from one medium (such as air) to another (such as glass).
1. The bending of light when it passes from one transparent substance to another.2. Bending of waves due to a change in a medium
The ability of the eye to bend light so that an image focuses directly on the retina.
The bending of light as it passes between materials having a different refractive index.
(1) The deflection, or bending, of the ray path of a seismic wave caused by its passage from one material to another having different elastic properties. (2) Bending of a tsunami wave front owing to variations in the water depth along a coastline.
the bending of light rays when passing through air, water, glass etc. The angle of entry is significantly different to the angle of exit as the light ray passes through the mediums of different density.
The bending of a beam of light at an interface between two dissimilar media or a medium whose refractive index is a continuous function of position (graded index medium).
The bending of light rays as they pass at an angle from one transparent or clear medium into a second one of different density.
In order for an eye to see clearly, the light rays must come to a perfect focus when they reach the fovea. The bending of the light rays is called refraction. Each eye has its own characteristic refractive error. An instrument (retinoscope) is used to determine this error. The examination is called refracting the eye. From the refraction, the examiner learns the strength of lens necessary to provide the clearest vision for each eye.
The deflection of a ray of light when passing obliquely out of a substance.
the deflection from a straight path undergone by an energy wave in passing from one medium (as air or gas) into another (such as glass or ceramic) in which its velocity is different.
When waves change direction as they move from one transparent substance to another. Waves
The bending of light rays as they pass through a transmission medium of one refractive index into a medium with a different refractive index.
a test to determine the refractive power of the eye; also, the bending of light as it passes from one medium into another.
the bending of light as it changes speed when it passes from one material to another
change in direction, or bending of a wave.
Bending of light as it passes from air into a different medium.
The bending or deflection of light passing from one transparent media to another; e.g., from air to water, from a gem into the air.
A change in the direction of light that occurs at the boundary between two different, transparent substances. The amount of directional change depends on the incident angle of the light, the wavelength (color) of the light, and the material of which the substance is made. For example, raindrops and glass prisms refract white light into rainbows. The many colors that make up white light are each a different wavelength, and they all refract at unique angles to form a band of color in order of wavelength: red, orange, yellow, green, blue, indigo, and violet.
The bending of a waveform as it passes from one medium to another, or as it experiences a change within the medium.
the change of direction or speed of light as it passes from one medium to another.
The turning or bending of any wave, such as a light or sound wave, when it passes from one medium into another of different optical density.
the bending of a wave path, as of light or sound, at the boundary between two different mediums.
The bending of light due to a change in its velocity as it passes the boundary between two materials (e.g. a pencil inserted into a glass of water will look bent due to refraction.)
The process by which the direction of light changes as it passes obliquely from one medium to another in which its speed is different.
The bending of obliquely incident rays as they pass from a substance of one refractive index into a substance of different refractive index.
the bending of Electromagnetic radiation rays when they pass from one medium to another having a different index of refraction or dielectric coefficient.
Deflection from a straight path undergone by light or other wave in passing obliquely from one medium (e.g., air) into another (e.g., glass) in which its velocity is different.
The bending of an RF wave while passing through a non-uniform transmission medium.
The bending of light. For example, light is refracted as it passes through water.
The changing of direction of a lightwave in passing through a boundary between two dissimilar media, or in a graded-index medium where refractive index is a continuous function of position.
The bending of a ray as it passes through a boundary between two different materials.
the bending of obliquely-incident light at an interface.
change in direction of light rays as they pass obliquely from one transparent medium to another of different density, e.g. air to glass.
The change in direction of a ray of light when it passes through one media to another with differing optical densities.
This refers to a ray of light that changes direction. Generally, light that travels in a straight line will alter its course or bend as it strikes any light transmitting surface, at any angle other than perpendicular.
The bending of light as it passes from one medium to another e.g., from air to water.
when something bends light Refraction can make something look bigger.
The action of changing the direction of a light wave, so the light enters the object in one direction, and leaves it in another.
The change in direction and usually speed of a wave as it crosses a boundary between two different media, for example, a solid and a liquid.
When light enters a medium with a different optical density (like a gemstone), the light is bent at an angle (and also changes its speed).
The bending of light rays. The deflection from a straight path suffered by a ray of light as it passes obliquely from a medium of one optical density to a medium of a different optical density, as from air into water or from air into a gemstone. The degree of bending is related to the change in velocity of light and the angel at which the light impinges.
The term given for the bending of light rays that occurs at the interface between two materials with different indices of refraction. A higher index of refraction results in a lower refracted angle.
In general, the bending of light as it travels through dense transparent material such as glass or water. In rendering, the simulation of refraction, which requires raytracing. See also raytracing.
The bending of light or radar beam as it passes through a zone of contrasting properties, such as atmospheric density, water vapor, or temperature.
Refraction is the change in direction of a wave due to a change in its speed. This is most commonly seen when a wave passes from one medium to another. Refraction of light is the most commonly seen example, but any type of wave can refract when it interacts with a medium, for example when sound waves pass from one medium into another.