Scanner may refer to:

Technology

For invisible radiation

Scanner (radio) A scanner (also referred to as a radio scanner) is a radio receiver that can automatically tune, or ''scan'', two or more discrete frequencies, stopping when it finds a signal on one of them and then continuing to scan other frequencies when the ...

, for searching for and receiving radio broadcasts * Scanner, a rotating

radar Radar is a detection system that uses radio waves to determine the distance ('' ranging''), angle, and radial velocity of objects relative to the site. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, w ...

antenna *

Neutron scanner The neutron scanner technology is non-intrusive used to minimise the impact of security measures on rapid freight movement. The main advantage of the Scanner over current and potential new scanners is its ability to accurately and rapidly analyse ...

, a scanner which utilizes neutrons to analyze objects

For (near) light

Image scanner An image scanner—often abbreviated to just scanner—is a device that optically scans images, printed text, handwriting or an object and converts it to a digital image. Commonly used in offices are variations of the desktop ''flatbed scanner'' ...

, which digitizes a two-dimensional image **

3D scanner 3D scanning is the process of analyzing a real-world object or environment to collect data on its shape and possibly its appearance (e.g. color). The collected data can then be used to construct digital 3D models. A 3D scanner can be based on m ...

, which digitizes the three-dimensional shape of a real object *

Motion picture film scanner A motion picture film scanner is a device used in digital filmmaking to scan original film for storage as high-resolution digital intermediate files. A film scanner scans original film stock: negative or positive print or reversal/IP. Units may ...

, which scans original film for storage as a digital file *

Barcode reader A barcode reader is an optical scanner that can read printed barcodes, decode the data contained in the barcode to a computer. Like a flatbed scanner, it consists of a light source, a lens and a light sensor for translating optical impulses into ...

, which reads the data encoded in a barcode *

Laser scanner Laser scanning is the controlled deflection of laser beams, visible or invisible. Scanned laser beams are used in some 3-D printers, in rapid prototyping, in machines for material processing, in laser engraving machines, in ophthalmological las ...

, which guides a laser beam along a path, sometimes combined with a measurement *

Stepper A stepper is a device used in the manufacture of integrated circuits (ICs) that is similar in operation to a slide projector or a photographic enlarger. ''Stepper'' is short for step-and-repeat camera. Steppers are an essential part of the com ...

, a part of the photolithography process * Scanner, an automated

stage light Stage lighting instruments (lanterns, or luminaires in Europe) are used in stage lighting to illuminate theatre, theatrical productions, concerts, and other performances taking place in live performance Theater (structure), venues. They are al ...

Security

* Biometric device, a security identification and authentication device ** Face scanner ** Iris scanner ** Retinal scanner **

Fingerprint scanner Fingerprint scanners are security systems of biometrics. They are used in police stations, security industries, smartphones, and other mobile devices. Function Everyone has patterns of friction ridges on their fingers, and it is this pattern t ...

* Full body scanner

Computing

* Port scanner, in computer networking *

Virus scanner Antivirus software (abbreviated to AV software), also known as anti-malware, is a computer program used to prevent, detect, and remove malware. Antivirus software was originally developed to detect and remove computer viruses, hence the name ...

Vulnerability scanner A vulnerability scanner is a computer program designed to assess computers, networks or applications for known weaknesses. These scanners are used to discover the weaknesses of a given system. They are utilized in the identification and detecti ...

, a computer program that probes for weaknesses * Lexical analyzer, a computer program *

Scanner (software) Scanner is a disk space analyzing and management tool for Microsoft Windows operating systems. It displays the disk space usage of any drive or directory in the form of a multilevel pie chart which can be navigated up and down through the direct ...

, a disk space analyzing and management tool for Microsoft Windows

Medical

CT scanner A computed tomography scan (CT scan; formerly called computed axial tomography scan or CAT scan) is a medical imaging technique used to obtain detailed internal images of the body. The personnel that perform CT scans are called radiographers ...

MRI scanner The physics of magnetic resonance imaging (MRI) concerns fundamental physical considerations of MRI techniques and technological aspects of MRI devices. MRI is a medical imaging technique mostly used in radiology and nuclear medicine in orde ...

PET scanner Positron emission tomography (PET) is a functional imaging technique that uses radioactive substances known as radiotracers to visualize and measure changes in metabolic processes, and in other physiological activities including blood flow, reg ...

* X-ray scanner

Other

Scan tool An automotive scan tool (scanner) is an electronic tool used to interface with, diagnose and, sometimes, reprogram vehicle control modules. There are many types from just as many manufacturers, one of the most familiar being the Snap-On Inc. "b ...

, an automotive electronic control unit diagnostic tool

Arts and entertainment

* Scanner (band), a German speed metal band *

Scanners (band) Scanners are an alternative rock band from London, England formed around 2004. History The band was initially formed by Matthew Mole (vocals, guitar, synthesizer) and Sarah Daly (vocals, bass guitar, violin) around 2004, who after writing songs ...

, an alternative band from London * "

Scanners Live in Vain "Scanners Live in Vain" is a science fiction short story by American writer Cordwainer Smith (pen name of American writer Paul Linebarger). It was the first story in Smith's Instrumentality of Mankind future history to be published and the fir ...

", science fiction story written in 1945 by Cordwainer Smith * Scanner, the stage name of British electronic musician Robin Rimbaud *

Scanner (Code Lyoko) ''Code Lyoko'' () is a French animated series, animated television series created by Thomas Romain and Tania Palumbo and produced by Antefilms Production (season 1) and MoonScoop Group (seasons 2-4) for France 3 and Canal J, with the participatio ...

, a fictional teleportation device * Scanner (''Half-Life''), a floating enemy in the ''Half-Life'' video game series * ''

Scanners ''Scanners'' is a 1981 Canadian science fiction horror film written and directed by David Cronenberg and starring Stephen Lack, Jennifer O'Neill, Michael Ironside, and Patrick McGoohan. In the film, "scanners" are psychics with unusual telepathic ...

'', a 1981 science fiction horror film * "Scanners" (''Superstore''), an episode of the television series ''Superstore''