Specular reflection

specularreflectionlaw of reflectionreflectedspecularly reflectedreflectordinary reflectionperfectly reflectedreflectionsspecular manner
Specular reflection, also known as regular reflection, is the mirror-like reflection of waves, such as light, from a surface.wikipedia
189 Related Articles

Mirror

mirrorslooking glassreflector
Specular reflection, also known as regular reflection, is the mirror-like reflection of waves, such as light, from a surface.
A mirror is an object that reflects light in such a way that, for incident light in some range of wavelengths, the reflected light preserves many or most of the detailed physical characteristics of the original light, called specular reflection.

Reflection (physics)

reflectionreflectedreflective
Specular reflection, also known as regular reflection, is the mirror-like reflection of waves, such as light, from a surface.
The law of reflection says that for specular reflection the angle at which the wave is incident on the surface equals the angle at which it is reflected.

Diffuse reflection

diffusemattediffuse interreflection
It may be contrasted with diffuse reflection, in which light is scattered away from the surface in a range of directions rather than just one.
Diffuse reflection is the reflection of light or other waves or particles from a surface such that a ray incident on the surface is scattered at many angles rather than at just one angle as in the case of specular reflection.

Gloss (optics)

glossymattegloss
An example of the distinction between specular and diffuse reflection would be glossy and matte paints.
Gloss is an optical property which indicates how well a surface reflects light in a specular (mirror-like) direction.

Ray (optics)

raysrayincident light
In this process, each incident ray is reflected at the same angle to the surface normal as the incident ray, but on the opposing side of the surface normal in the plane formed by incident and reflected rays.

Paint sheen

mattematte finishgloss
An example of the distinction between specular and diffuse reflection would be glossy and matte paints.
Glossy paints are shiny and reflect most light in the specular (mirror-like) direction, while on flat paints most of the light diffuses in a range of angles.

Glossmeter

gloss units
Lower quality measurements using a glossmeter quantify the glossy appearance of a surface in gloss units.
A glossmeter (also gloss meter) is an instrument which is used to measure specular reflection gloss of a surface.

Reflectance

reflectivityspectral reflectancereflection
Reflectivity is the ratio of the power of the reflected wave to that of the incident wave.

Householder transformation

Householder reflectioneponymous matricesHouseholder matrix
where \mathbf{R} is the so-called Householder transformation matrix, defined as:
In geometric optics, specular reflection can be expressed in terms of the Householder matrix (specular reflection#Vector formulation).

Fresnel equations

Fresnel reflectionFresnelFresnel coefficients
It is a function of the wavelength of radiation, and is related to the refractive index of the material as expressed by Fresnel's equations.
The relationship between these angles is given by the law of reflection:

Quantum reflection

For the efficient reflection of atoms from a solid-state mirror, very cold atoms and/or grazing incidence are used in order to provide significant quantum reflection; ridged mirrors are used to enhance the specular reflection of atoms.
In this case one can examine the specular reflection of a slow neutral atom from a solid state surface

Brewster's angle

Brewster angleBrewster windowBrewster's law
However, if the light strikes the interface at Brewster's angle, the reflected light is completely linearly polarized parallel to the interface.
If the refracted light is p-polarized and propagates exactly perpendicular to the direction in which the light is predicted to be specularly reflected, the dipoles point along the specular reflection direction and therefore no light can be reflected.

Specularity

specular mappingspecular mapsspecular
Specularity is the visual appearance of specular reflections.

Neutron reflectometry

neutron reflectometerNRreflection of neutrons
Neutron reflectometry uses specular reflection to study material surfaces and thin film interfaces in an analogous fashion to x-ray reflectivity.
Neutron reflectometry is a specular reflection technique, where the angle of the incident beam is equal to the angle of the reflected beam.

Specular highlight

specular lightingspecular highlightsCook-Torrance
The term specular means that light is perfectly reflected in a mirror-like way from the light source to the viewer.

Geometrical optics

geometric opticsray opticsgeometric
This is known as the Law of Reflection.

Atomic mirror

atomic mirrors
Non-electromagnetic waves can also exhibit specular reflection, as in acoustic mirrors which reflect sound, and atomic mirrors, which reflect neutral atoms.
Frequent measuring (narrowly spaced ridges) suppresses the transition of the particle to the half-space with absorbers, causing specular reflection.

Hamiltonian optics

Lagrangian opticsedge ray principleHamilton's methods in optics
A similar argument can be used for reflection in deriving the law of specular reflection, only now with n A =n B, resulting in θ A =θ B.

Plane of incidence

incidence plane
When reflection is specular, as it is for a mirror or other shiny surface, the reflected ray also lies in the plane of incidence; when refraction also occurs, the refracted ray lies in the same plane.

Wave

travelling wavewavestraveling wave
Specular reflection, also known as regular reflection, is the mirror-like reflection of waves, such as light, from a surface.

Normal (geometry)

normalnormal vectorsurface normal
In this process, each incident ray is reflected at the same angle to the surface normal as the incident ray, but on the opposing side of the surface normal in the plane formed by incident and reflected rays.

Coplanarity

coplanarnon-coplanarcontained
The law of reflection states that for each incident ray the angle of incidence equals the angle of reflection, and the incident, normal, and reflected directions are coplanar.

Hero of Alexandria

Heron of AlexandriaHeroHeron
This behavior was first described by Hero of Alexandria (AD c. 10–70).

Anno Domini

ADBCChristian era
This behavior was first described by Hero of Alexandria (AD c. 10–70).