Search references for DIFFRACTIVE OPTICALLY-VARIABLE-IMAGE-DEVICE. Phrases containing DIFFRACTIVE OPTICALLY-VARIABLE-IMAGE-DEVICE
See searches and references containing DIFFRACTIVE OPTICALLY-VARIABLE-IMAGE-DEVICE!DIFFRACTIVE OPTICALLY-VARIABLE-IMAGE-DEVICE
Security feature based on visual effects
A diffractive optically variable image device (DOVID) is a type of optical variable device; a security feature based on visual effects created by diffraction
Diffractive optically variable image device
Diffractive_optically_variable_image_device
Gold bar which contains a Kinegram
that has a diffractive optically variable image device (similar to a security hologram) embossed into the surface of the gold. The device used is a "Kinegram"
Kinebar
Optical device which splits a beam of light in two
2-dimensional beam matrix (MxN), depending on the diffractive pattern on the element. The diffractive beam splitter is used with monochromatic light such
Beam_splitter
Pre-cinema animation device
Barrier-grid animation § Kinegram Diffractive optically variable image device (DOVIDs) The Horse in Motion Optical toys Phonotrope "Harper's Magazine"
Zoetrope
Any technique to improve resolution of an imaging system beyond conventional limits
Super-resolution imaging (SR) is a class of techniques that improve the resolution of an imaging system. In optical SR the diffraction limit of systems
Super-resolution_imaging
Early color photography method
Archived from the original on 2006-07-12. Bjelkhagen, Hans. "Optically Variable Device for Security Documents". Archived from the original on 21 October
Lippmann_plate
National identity card of Greece
counterfeiting, such as transparent diffractive optically variable image device (DOVID), colour shifting ink (OVI), changing laser image (CLI), tactile relief, microtext
Greek_identity_card
Light-conducting fiber
(IR), far IR, radio, and microwave ranges. The design of any optically transparent device requires the selection of materials based upon knowledge of its
Optical_fiber
Optical device for selecting part of a spectrum
A monochromator is an optical device that transmits a mechanically selectable narrow band of wavelengths of light or other radiation chosen from a wider
Monochromator
Travel document
security features such as transparent diffractive optically variable image device (DOVID) and multi laser image (MLI). Laser engraving is used to print
Greek_passport
Ability of any image-forming device to distinguish small details of an object
Angular resolution describes the ability of any image-forming device such as an optical or radio telescope, a microscope, a camera, or an eye, to distinguish
Angular_resolution
Device used to focus light using diffraction
plate is a device used to focus light or other things exhibiting wave character. Unlike lenses or curved mirrors, zone plates use diffraction instead of
Zone_plate
Bending of electron beams due to electrostatic interactions with matter
in the contrast of images in electron microscopes. This article provides an overview of electron diffraction and electron diffraction patterns, collectively
Electron_diffraction
Topics referred to by the same term
Kinegram may refer to: A type of diffractive optically variable image device used to prevent counterfeiting A type of barrier-grid animation This disambiguation
Kinegram
Solid-state photodetector
different optimisations than optically sensitive diodes, 3D-ICs allow the layers to be separately optimised. As with CMOS image sensors micro-lenses can be
Single-photon_avalanche_diode
Instrument to measure the properties of visible light
The variable measured is most often the irradiance of the light but could also, for instance, be the polarization state. The independent variable is usually
Optical_spectrometer
date 2013). Barrier-grid animation § Kinegram DOVIDs, Diffractive optically variable image device Lumino kinetic art Robotic art Sound art Sound installation
Gas_sculpture
Algorithmic imaging methods that reconstruct quantitative phase and amplitude
or augmenting optical components with phase-retrieval and computational algorithms. Major approaches include coherent diffractive imaging (CDI), ptychography
Computational_microscopy
Type of wearable device
An optical see-through head-mounted display (OST-HMD) is a wearable device that has the capability of reflecting projected images as well as allowing the
Optical see-through head-mounted display
Optical_see-through_head-mounted_display
Pair of counter-rotating wedge prisms used for optical beam steering
prisms) are a beam steering device comprising two thin wedge prisms mounted coaxially and rotated independently about the optical axis. By varying the relative
Risley_prisms
Diode that emits light from an organic compound
power to display an image with a white background, such as a document or web site. This can lead to reduced battery life in mobile devices when white backgrounds
OLED
Indirectly forming images from measurements using algorithms
points exceeds the number of unknown object variables by a sufficient amount. Coherent diffractive imaging was experimentally demonstrated by Miao and
Computational_imaging
Detection single parties and photons
power through a low-power isolation transformer and outputs its signal optically. The gain of an MCP is very noisy, especially for single particles. With
Microchannel_plate_detector
Infrared imaging used to reveal temperature
camera or thermal imager) is a device that creates an image using infrared (IR) radiation, similar to a normal camera that forms an image using visible light
Thermography
Imaging and diffraction using electrons that pass through samples
direct imaging of specimens inserted into the microscope, rather than simple mesh grids or images of apertures. With this device successful diffraction and
Transmission electron microscopy
Transmission_electron_microscopy
Optical device used with a camera to create images
objective is an optical lens or assembly of lenses (compound lens) used in conjunction with a camera body and mechanism to make images of objects either
Camera_lens
Atmospheric distortions of light
of the image of an astronomical object due to turbulence in the atmosphere of Earth that may become visible as blurring, twinkling or variable distortion
Astronomical_seeing
Field of the printing industry for banknotes and other security products
dollar has its coat of arms watermarked on all its plastic bills. A Diffractive Optical Element (DOE) within the transparent window can create a comparable
Security_printing
mirror) as their image forming optical system. The 400 DO lens had a multilayer diffractive element containing concentric circular diffraction gratings to
History of photographic lens design
History_of_photographic_lens_design
Dispersive optical device
A virtually imaged phased array (VIPA) is an angular dispersive device that, like a prism or a diffraction grating, splits light into its spectral components
Virtually_imaged_phased_array
Physics experiment
is a diffraction pattern in which the light is spread out. The smaller the slit, the greater the angle of spread. The top portion of the image shows
Double-slit_experiment
Device which diffracts light via sound waves
can generate variable pulse shapes, is based on this principle. Acousto-optic modulators are much faster than typical mechanical devices such as tiltable
Acousto-optic_modulator
Transparent non-crystalline solid material
images indicate that q-glass nucleates from the melt as discrete particles with uniform spherical growth in all directions. While x-ray diffraction reveals
Glass
Type of microscopy
of fractions of a nanometer, more than 1000 times better than the optical diffraction limit. Atomic force microscopy (AFM) gathers information by "feeling"
Atomic_force_microscopy
Vacuum tube used to display images
repeatedly and systematically in a fixed pattern called a raster. In color devices, an image is produced by controlling the intensity of each of three electron
Cathode_ray_tube
Viewing of objects which are too small to be seen with the naked eye
effectiveness is quite variable. Dispersion staining is an optical technique that results in a colored image of a colorless object. This is an optical staining technique
Microscopy
Study of classical optics using Fourier transforms
image g formed in the output plane. The optical system output image g is related to the input image f by convolving the input image with the optical impulse
Fourier_optics
Research of materials
disadvantages, depending on the material used. Ceramic (glass) containers are optically transparent, impervious to the passage of carbon dioxide, relatively inexpensive
Materials_science
Form of electron microscopy
convergent beam electron diffraction (CBED) pattern at each scan location. This technique captures a 2 dimensional reciprocal space image associated with each
4D scanning transmission electron microscopy
4D_scanning_transmission_electron_microscopy
Military passive night vision scope
first-generation image intensifier. The result was that the tube produced an inverted image, simplifying the optical requirements of any night vision device that
AN/PVS-4
Device that converts sound into an electrical signal
and consumer electronics, including telephones, hearing aids, and mobile devices. Several types of microphone are used today, which employ different methods
Microphone
Laboratory technique
from the image. Consequently, the field around the specimen (i.e., where there is no specimen to scatter the beam) is generally dark. In optical microscopes
Dark-field_microscopy
Semiconductor laser
(2009-09-28) "Optically Pumped Semiconductor Lasers: Green OPSLs poised to enter scientific pump-laser market", Laser Focus World "Optically Pumped Semiconductor
Laser_diode
Measurement device
"unaffected," in the "zero order diffracted order" while a small amount of the beam is diffracted into a higher diffractive order, providing a "sample" of
Laser_beam_profiler
Sufficiency theorem for reconstructing signals from samples
use a higher resolution sensor, or to optically blur the image before acquiring it with the sensor using an optical low-pass filter. Another example is
Nyquist–Shannon sampling theorem
Nyquist–Shannon_sampling_theorem
Visualization of living animals for research purposes
micro-ultrasound, magnetic resonance imaging (MRI) and computed tomography (CT) are usually used for anatomical imaging, while optical imaging (fluorescence and bioluminescence)
Preclinical_imaging
Type of computer disk storage drive
limited to media devices such as game consoles and disc media players. Most consumer-grade laptop computers used to come with built-in optical drives. Some
Optical_disc_drive
Poisson random variable, whose intensity parameter is equal to s m {\displaystyle s_{m}} , As a photosensitive device, each pixel in the image sensor converts
Oversampled binary image sensor
Oversampled_binary_image_sensor
These notes contained a transparent "window" with a diffractive optically variable device (DOVD) image of Captain James Cook as a security feature. Australian
Banknotes of the Australian dollar
Banknotes_of_the_Australian_dollar
Hole or opening through which light travels
both on optics (the depth of the scene versus diffraction), and on the performance of the lens. Optically, as a lens is stopped down, the defocus blur
Aperture
Clarity of vision
precision. Visual acuity depends on optical and neural factors. Optical factors of the eye influence the sharpness of an image on its retina. Neural factors
Visual_acuity
Type of electron microscope
not continuously image-forming like a CCD array or film. Unlike in an optical system, the resolution is not limited by the diffraction limit, fineness
Scanning_electron_microscope
Type of transmissive optical device
Near-field optical microscopy uses a tip to scan an object. In contrast, this optical hyperlens magnifies an image that is sub-diffraction-limited. The
Superlens
Type of angular momentum in light
particles, the study of diffraction effects from apertures, and optical transformations. The latter use diffractive optical elements in order to unwrap
Orbital angular momentum of light
Orbital_angular_momentum_of_light
Phenomenon resulting from the superposition of two waves
use mirror or prisms to split and recombine waves; amplitude splitting devices use thin dielectric films. Multiple beam interferometers can include lenses
Wave_interference
NASA/ESA space telescope launched in 1990
an axial instrument bay. WF/PC was a high-resolution imaging device primarily intended for optical observations. It was built by NASA's Jet Propulsion
Hubble_Space_Telescope
Three-dimensional imaging technique
plane-like wave slightly tilted in one direction. The holographic diffractive optical elements used are usually constructed out of thin membranes of materials
Computer-generated_holography
a static library on Microsoft platforms LIST – variable list Mach-O – (no suffix for executable image, .o for object files, .dylib and .bundle for shared
List_of_file_formats
Object that reflects an image
in lasers. In astronomy, adaptive optics is a technique to measure variable image distortions and adapt a deformable mirror accordingly on a timescale
Mirror
Device in optics that reduces light intensity
filters might be required. This has, as in the case of variable NDs, the effect of reducing image quality. To counter this, some manufacturers have produced
Neutral-density_filter
Shielding an object from view using materials made to redirect light
common optical effects, such as ordinary refraction with common diffraction limitations in lenses and imaging. Since the beginning of optical sciences
Metamaterial_cloaking
Colour in living creatures caused by interference effects
the U.S., European Union, and Brazil, use banknotes that include optically variable ink, which is structurally coloured, as a security feature. These
Structural_coloration
Function representing relative sizes of particles in a system
Particle size distribution can greatly affect the efficiency of any collection device. Settling chambers will normally only collect very large particles, those
Particle-size_distribution
Regions of an electromagnetic field
induction communication Physics of magnetic resonance imaging Resonant inductive coupling for magnetic device applications RFID often operates at near field
Near_and_far_field
Imaging technique
or a similar device, and also refers to the display of holograms using a digital output device such as a spatial light modulator. Image rendering, or
Digital_holography
Point defect in diamonds
photoluminescence (which enables measurement of the electronic spin state using optically detected magnetic resonance), and its relatively long spin coherence at
Nitrogen-vacancy_center
Signal processing technique
A heterodyne is the result of mixing two signals in a nonlinear device to produce new frequency components, notably sum and difference frequencies of the
Heterodyne
Blurry region in optics
of confusion (CoC) is an optical spot caused by a cone of light rays from a lens not coming to a perfect focus when imaging a point source. It is also
Circle_of_confusion
Range 300-3000 GHz of the electromagnetic spectrum
Device Newswise, Retrieved 21 September 2008. Hillger, Philipp; Grzyb, Janusz; Jain, Ritesh; Pfeiffer, Ullrich R. (January 2019). "Terahertz Imaging and
Terahertz_radiation
Form of radar used to create images of landscapes
beneath the radar appear as if optically viewed horizontally (i.e., from the side) and those at far ranges as if optically viewed from directly above. These
Synthetic-aperture_radar
Design of lenses for use in cameras
weight and materials. For many other optical devices such as telescopes, microscopes and theodolites where the visual image is observed but often not recorded
Photographic_lens_design
Type of camera
(charge-coupled devices) are sometimes used for surveillance because they are difficult to detect. Related cameras, image forming devices, or developments
Pinhole_camera
Elementary particle or quantum of light
studied as elements of quantum computers, and for applications in optical imaging and optical communication such as quantum cryptography. The photon has no
Photon
Kind of microscopy
image. These images are then processed via an algorithm to produce a reconstructed image past the limit of diffraction that is built into our optical
Lattice light-sheet microscopy
Lattice_light-sheet_microscopy
Scanning electron microscope with a gaseous environment in the specimen chamber
detector device (GDD) Air jet through 100 micrometre aperture into ESEM chamber held at 200 Pa, image taken with gaseous detection device, 15 kV Imaging at
Environmental scanning electron microscope
Environmental_scanning_electron_microscope
European optical space observatory for astrometry
a total of 937.8 megapixels (commonly depicted as a gigapixel-class imaging device). Each observed celestial object was observed on average about 70 times
Gaia_(spacecraft)
Optical instrument
used. A QCL however does not use bulk semiconductor materials in its optically active region. Instead, it consists of a periodic series of thin layers
Quantum-cascade_laser
Conduit for signal propagation
interfaces between media. Technical devices can therefore be employed to transmit or guide waves. Thus, an optical fiber or a copper cable is used as transmission
Transmission_medium
Area of mathematics
theory studies dynamical systems that describe the evolution of a state variable x {\displaystyle x} over time t {\displaystyle t} : : x ˙ = d x d t = −
Catastrophe_theory
Model of optics describing light as geometric rays
reflected. Geometrical optics does not account for certain optical effects such as diffraction and interference, which are considered in physical optics
Geometrical_optics
Device to determine relative phase shift
The Mach–Zehnder interferometer is a device used to determine the relative phase shift variations between two collimated beams derived by splitting light
Mach–Zehnder_interferometer
State of matter with properties of both conventional liquids and crystals
liquid crystal based optical devices. Liquid crystal tunable filters are used as electro-optical devices, e.g., in hyperspectral imaging. Thermotropic chiral
Liquid_crystal
Uses of science and technology in photography
modules, camera phones, optical mouse devices,[1][2][3] medical imaging equipment, night vision equipment such as thermal imaging devices, radar, sonar, and
Science_of_photography
Branch of machine learning
"High-Resolution Multi-Spectral Imaging With Diffractive Lenses and Learned Reconstruction". IEEE Transactions on Computational Imaging. 7: 489–504. arXiv:2008
Deep_learning
Quantum mechanical waves describing matter
coherence and pulsing or chopping controls temporal coherence. Optically shaped matter waves Optical manipulation of matter plays a critical role in matter wave
Matter_wave
Used to measure spectral components of light
broad term often used to describe instruments that measure a continuous variable of a phenomenon where the spectral components are somehow mixed. In visible
Spectrometer
power dissipated by the device's series resistance, Rs, is equal to I2Rs, where I is the electric current flowing through the device. Thus, the lower current
Interband_cascade_laser
Method of representing images in 3D
Charles (1858). "Nouvel appareil stéréoscopique" [A New Stereoscopic Device] (image). Gallica (Lecture) (in French). p. 61. Picard, Emile (December 14,
Anaglyph_3D
Continuous range of values, such as wavelengths in physics
dependent on, and measurable along the range of, a continuous independent variable can be graphed along its range or spectrum. Examples are the range of electron
Spectrum
Laser with a variable wavelength
optically pumped or have an additional optical amplifier built into the device. Rather than placing the resonator mirrors at the edges of the device,
Tunable_laser
Concept relating to waves and signals
dependent on, and measurable along the range of, a continuous independent variable can be graphed along its range or spectrum. Examples are the range of electron
Spectrum_(physical_sciences)
Digital camera design standard
0× crop factor, 35 mm equivalent). This can mean lower image quality when all other variables are the same, including poorer color transitions and more
Micro_Four_Thirds_system
Elementary particle with negative charge
to produce atomically resolved images of the material. In blue light, conventional optical microscopes have a diffraction-limited resolution of about 200 nm
Electron
– Transporter Obrneny Pasovy TOTE – Tracker, Optical Thermally Enhanced TOW – Tube-launched, Optically tracked, Wire command link guided (US) TP – Target
Glossary of military abbreviations
Glossary_of_military_abbreviations
Scanning of an object or environment to collect data on its shape
scanning system based on laser triangulation and variable field of view". IEEE International Conference on Image Processing 2005. pp. I-425. doi:10.1109/ICIP
3D_scanning
Branch of optics which studies how EM radiation can be manipulated with metamaterials
through the use of achromatic or diffractive optics) leads to large, heavy, complex designs, and/or greater losses, lower image quality, and manufacturing difficulties
Transformation_optics
Dynamic collection of drops dispersed in a gas
methods of drop size measurements are laser diffraction, optical imaging, and phase Doppler. All of these optical methods are non-intrusive. If all the drops
Spray_(liquid_drop)
Equipment using an organic dye to emit coherent light
methanol-water solution. Flashlamps and several types of lasers can be used to optically pump dye lasers. A partial list of excitation lasers include: Copper vapor
Dye_laser
Material with a continuous, unbroken crystal lattice
CdTe crystals have several applications as substrates for IR imaging, electrooptic devices, and solar cells. By alloying CdTe and ZnTe together room-temperature
Single_crystal
Thin layer of material
recording media, electronic semiconductor devices, integrated passive devices, light-emitting diodes, optical coatings (such as antireflective coatings)
Thin_film
DIFFRACTIVE OPTICALLY-VARIABLE-IMAGE-DEVICE
DIFFRACTIVE OPTICALLY-VARIABLE-IMAGE-DEVICE
Girl/Female
Hindu
Golden image
Girl/Female
Hindu
Image
Girl/Female
Hindu
Image, Symbolic
Boy/Male
Arabic, Muslim
Image
Girl/Female
Maori
Image.
Boy/Male
Anglo, British, English
Variable
Girl/Female
Greek
Honest image.
Boy/Male
Indian
Image
Girl/Female
Tamil
Golden image
Girl/Female
Muslim
Image, Young
Boy/Male
Hindu, Indian, Marathi
Image
Boy/Male
Muslim
Image
Surname or Lastname
English
English : from the feminine personal name Mirabel, equated in medieval records with Latin mirabilis ‘marvellous’, ‘wonderful’ (in the sense ‘extraordinary’).
Girl/Female
Anglo Saxon
Image.
Girl/Female
Tamil
Onalika | ஓநாலிகாÂ
Image
Onalika | ஓநாலிகாÂ
Girl/Female
Arabic, Indian, Tamil
Victory; Honest Image; True Image; Truth
Girl/Female
Tamil
Praatika | பà¯à®°à®¾à®¤à¯€à®•à®¾
Image, Symbolic
Praatika | பà¯à®°à®¾à®¤à¯€à®•à®¾
Girl/Female
Arabic, French, Muslim
Belief
Girl/Female
Anglo Saxon
Image.
Girl/Female
Australian, Indonesian
Image
DIFFRACTIVE OPTICALLY-VARIABLE-IMAGE-DEVICE
DIFFRACTIVE OPTICALLY-VARIABLE-IMAGE-DEVICE
Girl/Female
Bengali, Indian
Good Looking
Girl/Female
Hindu
Knowledge /wisdom
Boy/Male
Arabic, Australian
Powerful
Boy/Male
Hindu, Indian
Intelligent
Boy/Male
Hindu
Breeze
Boy/Male
Hindu
Wholesome
Boy/Male
Indian, Tamil
Sun the Large
Girl/Female
Indian, Tamil
Lovely Gem
Biblical
father of the wall; father of uprightness,father of the wall
Boy/Male
American, British, English
Rules by the Spear
DIFFRACTIVE OPTICALLY-VARIABLE-IMAGE-DEVICE
DIFFRACTIVE OPTICALLY-VARIABLE-IMAGE-DEVICE
DIFFRACTIVE OPTICALLY-VARIABLE-IMAGE-DEVICE
DIFFRACTIVE OPTICALLY-VARIABLE-IMAGE-DEVICE
DIFFRACTIVE OPTICALLY-VARIABLE-IMAGE-DEVICE
imp. & p. p.
of Image
a.
Liable to vary; too susceptible of change; mutable; fickle; unsteady; inconstant; as, the affections of men are variable; passions are variable.
v. t.
To represent or form an image of; as, the still lake imaged the shore; the mirror imaged her figure.
a.
Worthy; estimable; deserving esteem; as, a valuable friend; a valuable companion.
n.
Arable land; plow land.
a.
Arable; tillable.
a.
Relating to the science of optics; as, optical works.
n.
An image.
a.
Having value or worth; possessing qualities which are useful and esteemed; precious; costly; as, a valuable horse; valuable land; a valuable cargo.
a.
Invariable.
n.
That which is variable; that which varies, or is subject to change.
adv.
In a variable manner.
a.
Distractive.
v. t.
To represent by parable.
n.
A quantity which may increase or decrease; a quantity which admits of an infinite number of values in the same expression; a variable quantity; as, in the equation x2 - y2 = R2, x and y are variables.
a.
Having the capacity of varying or changing; capable of alternation in any manner; changeable; as, variable winds or seasons; a variable quantity.
n.
One who images or forms likenesses; a sculptor.
a.
That produces diffraction.
a.
Friendly; kindly; sweet; gracious; as, an amiable temper or mood; amiable ideas.
n.
An invariable quantity; a constant.