Search
Menu
PI Physik Instrumente - Semiconductor Applications 5/24 ROS LB
distortion Dictionary Terms

intramodal distortion
That distortion resulting from dispersion of the group velocity of a propagating mode. It is the only distortion occurring...
2D profile sensor
A 2D profile sensor is a type of sensor used in various industrial and technological applications to measure and capture...
machine vision lens
A machine vision lens is a specialized optical lens designed for use in machine vision systems, which are used for automated...
Murty interferometer
A form of shearing interferometer that contains a simple wedged (plane-parallel) glass plate with a nonzero optical path...
trapezium distortion
The distortion of an image formed by a cathode-ray tube, caused by unbalanced deflection voltages or deflection voltages...
Seidel aberrations
Seidel aberrations refer to a set of monochromatic aberrations in optical systems, named after the German mathematician and...
tangential distortion
Optical aberration such that image magnification varies with ray distance from the optical axis in a radial distortion.
delay distortion
The distortion created because the different frequencies of a signal have different propagation velocities through a medium.
line-scan camera
A line-scan camera, also known as a line-scan image sensor or linear array camera, is a type of digital camera designed to...
image transducer
Any arrangement of a bundle of optical fibers that alters the shape of the image. For example, by systematic regulation of...
periscopic lens
Two simple meniscus lenses arranged symmetrically on either side of the aperture stop, providing reduced coma, lateral color...
Nyquist criterion
In image acquisition (and sampling theory), the postulate that the pickup sampling frequency must be a minimum of twice as...
eye pattern
A pattern on an oscilloscope display that consists of a string of shapes that resemble eyes. Because the pattern becomes...
burst mode laser
A high-frequency pulse-rate laser with an output limited by the heat capacity of the laser medium. Instead of having...
wide-angle distortion
A common aberration in lenses covering large fields of view; it results in images of objects near the edge of the field...
curvilinear distortion
A lens aberration in which the focal length varies radially outward from the center of the field. It has the effect of...
radial distortion
An alteration in magnification from the center of the field to any point in the field, measured in a radial direction from...
infrared lens
An infrared lens is an optical component specifically designed and optimized for transmitting, focusing, or manipulating...
self-phase modulation
Self-phase modulation (SPM) is a nonlinear optical phenomenon that occurs when an intense laser beam passes through a...
etaloning
Etaloning is an optical phenomenon that occurs in imaging systems, particularly in devices such as spectrometers,...
distortion-limited operation
The limitation on performance imposed by the distortion of a received signal rather than its amplitude or power.
optical testing instrument
An optical testing instrument is a device or system used to evaluate and measure the performance, quality, and...
rapid rectilinear lens
A double meniscus system in which two achromatized meniscus lenses are arranged symmetrically on either side of the aperture...
Cooke objective
A telephoto lens form noted for its lack of distortion.
fish-eye lens
A type of wide-angle lens that has an angular field above 140° and that exhibits barrel distortion. The most commonly...
aspheric lens
An aspheric lens is a type of lens whose surface profiles deviate from the traditional spherical shape. Unlike spherical...
wide-angle lens
A wide-angle lens is a type of camera lens that has a shorter focal length than a standard or normal lens, allowing it to...
aspheric mirror
An aspheric mirror is an optical mirror surface that deviates from the shape of a perfect sphere, having a non-spherical...
pinhole camera
A lensless photographic camera that uses a small sharp-edged hole as its aperture. The light passed by this aperture onto...
teleradiography
A method of taking radiographs at a distance from the object being photographed to decrease distortion.
optical glass
Optical glass refers to a type of glass specifically engineered and manufactured for use in optical components and systems,...
GRIN lens
A GRIN (gradient index) lens is a type of optical lens that utilizes a gradient in refractive index across its volume rather...
shear
Image distortion that occurs when the axes of the original image are not perpendicular in the resulting image, making the...
stereoscopic distortion
An exaggerated depth appearance in stereo photographs caused by the lenses in the camera being farther apart than the eyes...
linear image sensor
A linear image sensor is a type of solid-state electronic device used to capture and convert light into electrical signals....
Brillouin scattering
Brillouin scattering is a phenomenon in physics where an incident electromagnetic wave (usually light) interacts with...
optical noise
Optical noise refers to undesirable fluctuations or disturbances in an optical signal that can affect the quality or...
rectilinear system
An optical system that is corrected for distortion and spherical aberration and therefore forms the image of a straight line...
perspective distortion
The distortion that is the result of viewing a print from a point other than the center of perspective. The center of...
panoramic lens
A lens system that is capable of producing a 360° image, or one that is very close to that. In recording, the image may...
neutral density coating
A coating applied to a neutral density glass that is designed to reduce the amount of light evenly across the transmitted...
Kerr soliton
A Kerr soliton refers to a specific type of soliton, a self-reinforcing wave packet, that arises in nonlinear optical...
keystone distortion
A type of geometrical distortion that brings about a trapezoidal display of a nominally rectangular picture. Usually...
multiple invariance
Characteristic of optical correlators in which invariance to more than one distortion parameter per axis of the processor is...
pyramid error
Pyramid error in optics refers to an aberration in the shape of an optical surface, particularly in the context of mirrors....
optical cements and adhesive
Optical cements and adhesives are specialized materials used in the assembly and bonding of optical components in optical...
smear
A lack of resolution in a television image as a result of smear ghosts or an insufficiently high video-frequency response....
conjugate holographic image
Also known as real holographic image. The indistinct, highly distorted image produced on the side of the hologram closest to...
multimode distortion
In an optical waveguide,- typically a multimode fiber - the distortion resulting from differential mode delay, i.e. axial...
parallelogram distortion
In a camera or cathode-ray tube, distortion that is designated by a lateral skewing of the reproduced image.
sharpness index
A function of the intensity distribution in an image aberrated by a quadratic curvature wavefront distortion.
envelope delay distortion
Distortion caused by variations in the rate of change of phase shift with frequency over the signal's necessary bandwidth.
carrier-to-noise ratio
The ratio of the power of the carrier wave to that of unwanted signal distortions, or noise, before any nonlinear signal...
Shack-Hartmann wavefront sensor
The Shack-Hartmann wavefront sensor is an optical device used for measuring the wavefront aberrations of an optical system....
nodal bench
A bench with instrumentation including a collimator, a microscope, positioners and a nodal slide used to rotate a lens about...
space pattern
On a test chart, the pattern designed to direct and measure geometric distortion.
laser guide star
An artificial star used to aid in adaptive optics imaging of the sky. The guide star is provided from a telescope system on...
attenuator
An electronic transducer, either fixed or adjustable, that reduces the amplitude of a wave without causing significant...
panoramic distortion
The image distortion produced by a panoramic camera with a swinging lens or a swinging mirror in front of a fixed lens. The...
sapphire
Sapphire refers to a crystalline form of aluminum oxide (Al2O3) that is used in various optical and photonic applications...
rolling shutter artifacts
Rolling shutter artifacts are distortions or visual anomalies that can occur in images or videos captured by cameras with...
electromagnetic lens
An electron lens consisting of a homogeneous axial electric field and a magnetic field used in high-quality image tubes for...
georectification
The superposition of satellite or aerial images with a map in order to process and remove distortion. Uses reference points...
aperture distortion
A loss of resolution or detail in a television signal caused by the size of the electron scanning beam.
orange peel
In the context of imaging, particularly digital imaging and printing, "orange peel" refers to a texture or visual distortion...
mode distortion
marginal error
The distortion in an ophthalmic lens resulting from the refraction of light rays entering the periphery of the lens surface....
optical phase distortion
Optical phase distortion refers to a phenomenon where the phase of an optical wavefront is altered as it propagates through...
intermodal distortion
 mirage
The distortion of an object's true image as the result of abnormal atmospheric disturbances along the path traveled by the...
phase screen
A phase screen, in the context of optics and wave optics, refers to a surface or medium that introduces a phase delay to an...
aberration
A departure from ideal paraxial imaging behavior. The distortion of an optical field wavefront as it is propagated through...
modal dispersion
Synonym for multimode distortion. Also called mode dispersion.
aplanatic surface
An aplanatic surface is an optical surface that is specifically designed or shaped to minimize spherical aberration and...
distortion
A general term referring to the situation in which an image is not a true-to-scale reproduction of an object. The term also...
pincushion distortion
An aberration of a lens system caused by an increase in lens focal length as the field angle increases. The amount of...
orthoscopic
Corrected for distortion.
thermal lensing
Distortion of an optical component as a result of heat, which can influence the divergence and the mode quality of a beam...
high-frequency distortion
Distortion of the high frequencies of a signal. In television, the term generally applies to frequencies above the 15.7 kHz...
barrel distortion
The negative distortion that causes a square grid pattern to be imaged as barrel-shaped.
globar
A light source made up of silicon carbide or carborundum. It is resistant to the negative temperature coefficient and...
attenuation-limited power
In fiber optics, the limitation on performance imposed by the amplitude of a received signal rather than distortion.
cylindrical lens
A cylindrical lens is an optical component that has different curvatures along its two orthogonal axes, resulting in a shape...
anamorphic distortion
A type of distortion in which the magnification varies in different orientations, the directions of maximum and minimum...
oblique error
The image error that results from astigmatism, coma, oblique spherical aberration, lateral color and distortion.
split-image microscope
A mask-alignment microscope used to produce and inspect microcircuits in the electronics industry. It provides flat-field,...
mode dispersion
Synonym (regarded by some as erroneous) for multimode distortion, which see.
adaptive optics
Adaptive optics (AO) is a technology used to improve the performance of optical systems by reducing the effects of...
spatial light modulator
A spatial light modulator (SLM) is an optical device that modulates or manipulates the amplitude, phase, or polarization of...
face-pumped laser
A device in which slab geometry internally compensates for thermal-optic distortion; the solid host material -- glass or...
phase distrortion
Phase distortion refers to a change in the phase relationships between different frequency components of a signal. In the...
cutback technique
A technique for measuring fiber attenuation or distortion by performing two transmission measurements. One is at the output...

(92 results found)

Explore Our Content
News
Features
Latest Products
Webinars
White Papers
All Things Photonics Podcast
Videos
Our Summits & Conferences
Industry Events
Bookstore
Join Our Community
Subscribe
Advertise
Become a member
Sign in
Contribute a Feature
Suggest a Webinar
Submit a Press Release
Mobile Apps

About Us
Our Company
Our Publications
Contact Us
Career Opportunities
Teddi C. Laurin Scholarship

Terms & Conditions
Privacy Policy
California Consumer Privacy Act (CCPA)



©2024 Photonics Media
100 West St.
Pittsfield, MA, 01201 USA
[email protected]
We use cookies to improve user experience and analyze our website traffic as stated in our Privacy Policy. By using this website, you agree to the use of cookies unless you have disabled them.