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An optical variable device or optically variable device (OVD) is an iridescent or non-iridescent security feature that exhibits different information,
Optical_variable_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
Device used to reduce the power level of an optical signal
optical attenuator, or fiber optic attenuator, is a device used to reduce the power level of an optical signal, either in free space or in an optical
Optical_attenuator
Technology used to provide broadband to the end consumer via fiber
A passive optical network (PON) is a fiber-optic telecommunications network that uses only unpowered devices to carry signals, as opposed to electronic
Passive_optical_network
Computer that uses photons or light waves
Application-specific devices, such as synthetic-aperture radar (SAR) and optical correlators, have been designed to use the principles of optical computing. Correlators
Optical_computing
Currency denomination
respectively. This is also the only note for the series that uses optically variable ink. (OVI) At the lower left beside the OVI has the microprint "Central
Philippine one thousand-peso note
Philippine_one_thousand-peso_note
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
Discrete device in an electronic system
piezoelectric device to generate full audio Buzzer – Electromagnetic or piezoelectric sounder to generate tones Position, motion Linear variable differential
Electronic_component
Topics referred to by the same term
Optical Variable Device, an iridescent image that exhibits various optical effects such as movement or color changes Ophthalmic viscosurgical device,
OVD
Currency of Kuwait
anniversary of its Liberation. One feature from the note is an optically variable device (OVD) patch that shows a fingerprint, a reference to the victims
Kuwaiti_dinar
^ WST - windowed security thread ^ OVM - optically variable magnetic ^ replacing optically variable device (OVD) patch ^ DST - dynamic security thread
Banknotes of the Philippine peso
Banknotes_of_the_Philippine_peso
Revolving disk with cut-outs to modulate light
An optical chopper is a device which periodically interrupts a light beam. Three types are available: variable frequency rotating disc choppers, fixed
Optical_chopper
Storing sound recordings on film
Optical sound is a means of storing sound recordings on transparent film. Originally developed for military purposes, the technology first saw widespread
Optical_sound
Device that converts images into electronic signals
electronic imaging devices of both analog and digital types, which include digital cameras, camera modules, camera phones, optical mouse devices, medical imaging
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
Light-conducting fiber
An optical fiber, or optical fibre, is a flexible glass or plastic fiber that can transmit light from one end to the other. Such fibers are widely used
Optical_fiber
Current denomination of Australian currency
value are included. The 1988 Commemorative issue includes an optically variable device of Captain James Cook, who first mapped Botany Bay. Australia
Australian_ten-dollar_note
General category of storage mechanisms
employs various electronic, magnetic, optical, or mechanical changes to the disk's surface layer. A disk drive is a device implementing such a storage mechanism
Disk_storage
An optical modulator is an optical device which is used to modulate a beam of light with a perturbation device. It is a kind of transmitter to convert
Optical modulators using semiconductor nano-structures
Optical_modulators_using_semiconductor_nano-structures
Paper money issued by a bank
counterfeiting through incorporated security features, such as optically variable devices that are extremely difficult to reproduce. Over the years, a number
Banknote
Optical sighting device for firearms
A telescopic sight, commonly called a scope informally, is an optical sighting device based on a refracting telescope. Sights are equipped with a referencing
Telescopic_sight
Gold bar which contains a Kinegram
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
Instrument to measure the properties of visible light
spectrum. Below optical frequencies (that is, at microwave and radio frequencies), the spectrum analyzer is a closely related electronic device. Spectrometers
Optical_spectrometer
Class of sound film processes
television), which used the mercury vapor lamp as a modulating device to create a variable-density soundtrack. Later, Case Laboratories and Lee De Forest
Sound-on-film
Optical device which splits a beam of light in two
beamsplitter is an optical device that splits a beam of light into a transmitted and a reflected beam. It is a crucial part of many optical experimental and
Beam_splitter
Telecommunications service provider endpoint
optical line termination (OLT), also called an optical line terminal, is a device which serves as the service provider endpoint of a passive optical network
Optical_line_termination
Computer recognition of visual text
Optical character recognition (OCR) or optical character reader is the electronic or mechanical conversion of images of typed, handwritten or printed text
Optical_character_recognition
Small-scale magnetometer
type of device by 100 times. But a much lower resolution of 150 μT was reported. Keplinger et al. were trying to use an LED source for optical sensing
MEMS_magnetic_field_sensor
Automatic collection and transmission of data
systems, barcode reader, optical character recognition (OCR) reader, or other sensing devices, coupled to telemetry devices, to detect RFID tags, barcode
Telemetry
Device used to measure power in an optical signal
An optical power meter (OPM) is a device used to measure the power in an optical signal. The term usually refers to a device used for measuring the average
Optical_power_meter
National identity card of Peru
Photo area with wavy micro text Optically Variable Device (DOVID) Laser engraving Optically variable ink (Optical Variable Ink – OVI) Microscopic safety
National_Identity_Card_(Peru)
Currency of Nicaragua
is the bank logo patch, now a holographic patch instead of an optically variable device and a wider security thread. On 26 October 2015, the Banco Central
Nicaraguan_córdoba
transceivers and an optical switching element (usually a MEMS based device). An edge node instead does not need an optical switching device because it could
Optical_IP_Switching
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
Sniper rifle/anti-materiel rifle
different day optical sights available for the M200 Intervention. The standard optical sight is the Nightforce NXS 5.5-22x56 variable magnification telescopic
CheyTac_Intervention
Optical device for recording images
an optical system, typically using a lens of variable aperture to focus light onto an image pickup device. The aperture and shutter admit the correct amount
Camera
Currency of Singapore
× 74 mm Red 25th Anniversary of the Independence of Singapore Optically variable device shows President Yusof bin Ishak, Singapore Harbour in 1861, four
Singapore_dollar
Electromechanical device
read by a controlling device, such as a microprocessor or microcontroller to determine the angle of the shaft, similar to an optical encoder. The absolute
Rotary_encoder
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
Standard for optical data packages
This creates an optical virtual private network for each client signal. ITU-T defines an optical transport network as a set of optical network elements
Optical_transport_network
Arrangement of mirrors
An optical cavity, resonating cavity or optical resonator is an arrangement of mirrors or other optical elements that confines light waves similarly to
Optical_cavity
National Organization For The Spanish Blind
kinds, such as optically variable devices, that are extremely difficult to reproduce. The cupón sellers use electronic reading devices with access to
ONCE
Filters which selectively transmit specific colors
An optical filter is a device that selectively transmits light of different wavelengths, usually implemented as a glass plane or plastic device in the
Optical_filter
Laser pulsing technique
work. Q-switching is achieved by putting some type of variable attenuator inside the laser's optical resonator. When the attenuator is functioning, light
Q-switching
A depolarizer or depolariser is an optical device used to scramble the polarization of light. An ideal depolarizer would output randomly polarized light
Depolarizer_(optics)
Device that lets the user see in levels of visible light approaching total darkness
night-vision device (NVD), also known as a night optical/observation device (NOD) or night-vision goggle (NVG), is an optoelectronic device that allows
Night-vision_device
Aim markings in optical devices, e.g. crosshairs
graticule, is a pattern of fine lines or markings built into the optical path of an optical device to provide measurement references during visual inspections
Reticle
Microchip manipulating light instead of electricity
interconnect waveguides, power splitters, optical amplifiers, optical modulators, filters, lasers and detectors. These devices require a variety of different materials
Photonic_integrated_circuit
Shielding an object from view using materials made to redirect light
optics is a new method for creating novel and unique optical devices. The purpose of a cloaking device is to hide something, so that a defined region of
Metamaterial_cloaking
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
American semiconductor manufacturer
"RF/IF variable-gain amplifier fits wireless infrastructure apps." February 1, 2006. Retrieved July 15, 2011. Compound Semiconductor. "Analog Devices Unveils
Analog_Devices
Automatic fuze that detonates an explosive at a predetermined distance
A proximity fuze (also VT fuze or "variable time fuze") is a fuze that detonates an explosive device automatically when it approaches within a certain
Proximity_fuze
Converter that measures a physical quantity and converts it into a signal
sensor chip. Since the first commercial optical mouse, the IntelliMouse introduced in 1999, most optical mouse devices use CMOS sensors. MOS monitoring sensors
Sensor
Device capable of storing light
In telecommunications, an optical buffer is a device that is capable of temporarily storing light. Just as in the case of a regular buffer, it is a storage
Optical_buffer
Architectural structures that transmit or distribute light
and are examples of optical waveguides. In their application to daylighting, they are also often called tubular daylighting devices, sun pipes, sun scopes
Light_tube
Early film audio synchronization system
recorded audio to a motion picture image. RCA Photophone was an optical sound, "variable-area" film exposure system, in which the modulated area (width)
RCA_Photophone
Mechanical sensors, often based on human senses
Encoder: a digital optical device that converts motion into a sequence of digital pulses. Potentiometer: a variable resistance device that expresses linear
Robotic_sensors
Android phablet
angle lens (16 mm f/2.2), and a variable telephoto lens that can switch between 70 mm and 105 mm with 3× or 4.4× optical zoom; each uses ZEISS' T✻ (T-Star)
Sony_Xperia_5_III
Optical disc copyright protection system
keys included inside the optical discs implementing AACS DRM system. The MKB is used to prevent unauthorized and revoked devices from playing Blu-ray and
Media_Key_Block
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
Property of a material
analysis) or using variable incidence angles. For samples that can be prepared in thin slices, higher precision is obtainable using optical transmission experiments
Optical_conductivity
Device that modulates an analog carrier signal to encode digital information
code'.[citation needed] A device that connects to a fiber optic network is known as an optical network terminal (ONT) or optical network unit (ONU). These
Modem
Japanese precision components manufacturer
receptacles and pigtails, optical switches using MEMS(Microelectromechanical systems) technology, and optical devices such as variable attenuators. Since developing
Adamant Namiki Precision Jewel Co
Adamant_Namiki_Precision_Jewel_Co
Type of variable active electronic filter
A state variable filter (SVF) is a type of active filter in electronic circuits. In a state-variable filter architecture the signal and its successive
State_variable_filter
Set of computer and peripheral connection standards
a wide range of other devices, including scanners and optical disc drives, although not all controllers can handle all devices. The first SCSI standard
SCSI
electronic, magnetic, optical, or mechanical changes to a surface layer of one or more rotating disks. A disk drive is a device implementing such a storage
Glossary_of_computer_science
Australian polymer chemist
rather than the traditional paper, and incorporate optically variable devices – defined as a device that changes its appearance when something external
David_Henry_Solomon
Techniques used to reduce blurring of images
imaging device during exposure. Generally, it compensates for pan and tilt (angular movement, equivalent to yaw and pitch) of the imaging device, though
Image_stabilization
Neo-grotesque sans-serif typeface
On WWDC22, variable width option is introduced to the font family. SF Pro feature variable weights, variable widths, and variable optical sizes of between
San Francisco (sans-serif typeface)
San_Francisco_(sans-serif_typeface)
Quantification of bulk fluid movement
Hagen–Poiseuille equation. A "variable area meter" measures fluid flow by allowing the cross sectional area of the device to vary in response to the flow
Flow_measurement
cameras that could record single system optical sound-on-film tracks contained a Mirror galvanometer, which was a device that recorded sound on the film by
Auricon
Method of combining multiple signals into one signal over a shared medium
original channels on the receiver end. A device that performs the multiplexing is called a multiplexer (MUX), and a device that performs the reverse process
Multiplexing
Piece of machine equipment
mechanical speed-changing device might also be called an "adjustable speed motor drive". Power electronics-based variable-frequency drives are rapidly
Motor_drive
Type of optical lens
imaging device, such as microscopes, enlargers, slide projectors, and telescopes. The concept is applicable to all kinds of radiation undergoing optical transformation
Condenser_(optics)
Computer networking standard
802.3 standard. These variable-length packets are better suited to IP traffic than the GEM frames used by other Passive Optical Networks, such as GPON
10G-EPON
Photographic lens
the instant-return diaphragm automatic control device[clarification needed]. The lens has a variable diaphragm from f/3.5 to f/16. The lens has antireflective
Peleng_lens
Sensors of light or other electromagnetic energy
are essential in a wide range of applications, from digital imaging and optical communication to scientific research and industrial automation. Photodetectors
Photodetector
Memory used temporarily in data transfers
buffer, Stencil buffer, for different parts of image information Variable length buffer Optical buffer MissingNo., the result of buffer data not being cleared
Data_buffer
Network that allows computers to share resources and communicate with each other
storage devices, such as disk arrays, tape libraries, and optical jukeboxes, accessible to servers so that the storage appears as locally attached devices to
Computer_network
Geometric sans-serif typeface by Google
Theme". It was created in 2017 as a variable font alongside Google Sans Display, a variation designed for larger optical sizes. Notably, compared to Product
Product_Sans
accelerometer Position sensor Position sensitive device Angular rate sensor Rotary encoder Rotary variable differential transformer Selsyn Shock detector
List_of_sensors
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
Optical see-through head-mounted display
Optical_see-through_head-mounted_display
Type of resistor, usually with three terminals
set, to cause to stand") meaning "setter, regulating device", which is a two-terminal variable resistor. For low-power applications (less than about
Potentiometer
Medical device used to measure hemoglobin concentration
A hemoglobinometer or haemoglobinometer (British English) is a medical device used to measure hemoglobin concentration in blood. It can operate by spectrophotometric
Hemoglobinometer
Overview of and topical guide to forgery
to accurately reproduce Optical variable device — an iridescent image that cannot be photocopied or scanned Optically variable ink — ink that appears to
Outline_of_forgery
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
prism material, and α is the angle between the prism's surfaces. The term "optical wedge" refers to any shallow angle between two plane surfaces of a window
Wedge_prism
Converts light into current
integrating scanning electronics as in a charge-coupled device (CCD) or CMOS sensor. The optical mouse chip shown in the photo has parallel (not multiplexed)
Photodiode
Inorganic, nonmetallic solid prepared by the action of heat
though low powered, is virtually lossless. Optical waveguides are used as components in Integrated optical circuits (e.g. light-emitting diodes, LEDs)
Ceramic
Paradigm of quantum computer
Linear optical quantum computing or linear optics quantum computation (LOQC), also photonic quantum computing (PQC), is a paradigm of quantum computation
Linear optical quantum computing
Linear_optical_quantum_computing
Medical: A pneumo-optical sensing PAT probe, and a pneumatic sensing probe: The pneumo-optical sensing based probe detects optical density changes of
Peripheral_Arterial_Tone
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
universal multiport interferometer (or universal modal unitary) is an optical device capable of imposing general unitary transformations in the modal space
Universal multiport interferometer
Universal_multiport_interferometer
Standardized protocol
services soon. List of device bandwidths Routing and wavelength assignment Multiwavelength optical networking Optical mesh network Optical Transport Network
Synchronous optical networking
Synchronous_optical_networking
Japanese component manufacturing company
development with Micralyne Inc. for optical sensor device incorporating MEMS.VOA（Variable Optical Attenuator）and optical switch with hermetically sealed in
Adamant_Co.,_Ltd.
Rotary device used to operate mechanical or electrical device system
components in control systems, and are found on all sorts of devices from taps and gas stoves to optical microscopes, potentiometers, radio tuners and digital
Control_knob
Study of matter-light interactions at small scales
and optical engineering, since the devices of optical engineering and the applications of applied optics are necessary for basic research in optical physics
Atomic, molecular, and optical physics
Atomic,_molecular,_and_optical_physics
Overview of and topical guide to electronics
STMicroelectronics Texas Instruments Toshiba TLCS Optical fiber Optical properties Optical receivers Optical system design Optical transmitters Ampère's law Coulomb's
Outline_of_electronics
Electronic alphanumeric display device
battery-powered electronic equipment. It is an electronically modulated optical device made up of any number of pixels filled with liquid crystals and arrayed
Text_display
Hall effect sensor Inductive sensor Laser Doppler vibrometer (optical) Linear variable differential transformer (LVDT) Photodiode array Piezo-electric
Position_sensor
OPTICAL VARIABLE-DEVICE
OPTICAL VARIABLE-DEVICE
Girl/Female
Armenian
Valuable.
Girl/Female
Tamil
Valuable
Girl/Female
Gujarati, Hindu, Indian
Valuable
Boy/Male
Tamil
Amiable
Boy/Male
Greek
Amiable.
Boy/Male
Hindu, Indian
Valuable
Male
Danish
, amiable.
Girl/Female
Christian & English(British/American/Australian)
Amiable
Surname or Lastname
English
English : from the feminine personal name Mirabel, equated in medieval records with Latin mirabilis ‘marvellous’, ‘wonderful’ (in the sense ‘extraordinary’).
Boy/Male
Hawaiian
Valuable.
Girl/Female
Indian
Valuable
Girl/Female
Assamese, Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Telugu
Valuable
Girl/Female
Indian
Optional
Boy/Male
Arabic, Bengali, Hindu, Indian, Kannada, Marathi, Muslim, Telugu
Valuable
Boy/Male
Hindu
Amiable
Boy/Male
Anglo, British, English
Variable
Boy/Male
Vietnamese
Valuable.
Male
Danish
, amiable.
Boy/Male
Hindi
Valuable.
Boy/Male
Arabic, Indian, Muslim
Valuable
OPTICAL VARIABLE-DEVICE
OPTICAL VARIABLE-DEVICE
Girl/Female
Australian, Japanese
Child of Yuki
Girl/Female
Muslim
To walk with a proud gait
Girl/Female
Arabic, Muslim
Scarce; Rare
Boy/Male
Anglo, Australian, Hindu, Indian, Kurdish, Punjabi, Sikh
Pain; Effective
Girl/Female
Hindu, Indian, Kannada, Malayalam, Marathi, Telugu
Golden Necklace
Boy/Male
Greek
Enduring.
Male
Egyptian
, a priest of the deity Anhur.
Boy/Male
Welsh
Legendary son of Panon.
Girl/Female
American, Australian, French
Dear
Surname or Lastname
English
English : probably a variant of Bexley.
OPTICAL VARIABLE-DEVICE
OPTICAL VARIABLE-DEVICE
OPTICAL VARIABLE-DEVICE
OPTICAL VARIABLE-DEVICE
OPTICAL VARIABLE-DEVICE
n.
That which is variable; that which varies, or is subject to change.
a.
Having the capacity of varying or changing; capable of alternation in any manner; changeable; as, variable winds or seasons; a variable quantity.
a.
Of or pertaining to the eye; ocular; as, the optic nerves (the first pair of cranial nerves) which are distributed to the retina. See Illust. of Brain, and Eye.
a.
Friendly; kindly; sweet; gracious; as, an amiable temper or mood; amiable ideas.
a.
Alt. of Optical
a.
Expressed in metrical form; exhibiting the imaginative or the rhythmical quality of poetry; as, a poetical composition; poetical prose.
a.
Liable to vary; too susceptible of change; mutable; fickle; unsteady; inconstant; as, the affections of men are variable; passions are variable.
a.
Worthy; estimable; deserving esteem; as, a valuable friend; a valuable companion.
v. t.
To represent by parable.
a.
Having value or worth; possessing qualities which are useful and esteemed; precious; costly; as, a valuable horse; valuable land; a valuable cargo.
a.
Relating to the science of optics; as, optical works.
a.
One skilled in optics.
n.
An invariable quantity; a constant.
a.
Arable; tillable.
adv.
By optics or sight; with reference to optics.
a.
One who deals in optical glasses and instruments.
n.
Of or pertaining to a place; limited; logical application; as, a topical remedy; a topical claim or privilege.
adv.
In a variable manner.
a.
Invariable.
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.