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Shutter Dictionary Terms

optoelectronic shutter
A device used to control or block a light beam by means of the Kerr electro-optical effect, and other electro-optic devices such as Pockels cells.
box camera
The simplest, most inexpensive type of camera, which is shaped as an oblong or square box, containing the simplest lens,...
machine vision lens
A machine vision lens is a specialized optical lens designed for use in machine vision systems, which are used for automated...
compound shutter
A center-opening shutter made up of several identical leaves that are mounted symmetrically around the optical axis of the...
photographic shutter efficiency
A measure of the total light passed by a shutter during an exposure, compared with the light that could be passed by an...
high-speed still camera
A still camera with a shutter capable of opening for a time as short as a fraction of a microsecond. An electronically...
laser Q-spoiler
A fast-action shutter inserted between one end of a laser rod and the end mirror; when inserted to prevent emission and then...
high-speed shutter
A shutter actuated by means other than mechanical springs for timings on the order of nanoseconds. The shutter is used in...
camera shutter
An apparatus, designed for use with a camera, that is used to rapidly open the path from lens to film, to maintain the...
rolling shutter artifacts
Rolling shutter artifacts are distortions or visual anomalies that can occur in images or videos captured by cameras with...
gateable
In detectors, the ability to switch on and off electronically, thus producing the effect of a mechanical shutter.
shutter speed tester
A device used to measure the opening time of a shutter. The most common devices depend on the charging or discharging of an...
donpisha
A type of asynchronous shutter device that is used particularly in CCD sensor applications to capture an image of a...
magneto-optic shutter
A type of high-speed photographic shutter that uses Faraday rotation to produce exposure times as fast as 1 microsecond. It...
flash sensitometer
A sensitometer that utilizes an electronic flashtube or a photoflash lamp as both the light source and the shutter for...
electrolytic shutter
A high-speed shutter, similar to a Kerr cell, that uses the birefringence produced in a liquid during the passage of an...
stereo camera
A camera with two taking lenses and synchronized shutters. Two images are recorded simultaneously on separate frames,...
diaphragm shutter
A shutter consisting of a ring of interweaving blades that open outward and allow light to pass when they are pivoted at...
Pockels
In optics, the Pockels effect refers to the phenomenon where the refractive index of a material changes in response to an...
shutter
A mechanical or electronic device used to control the amount of time that a light-sensitive material is exposed to radiation.
bias frame
A frame taken with a CCD camera over an exposure length of zero seconds with the lens cap on or the shutter closed and no...
motion picture camera
A camera equipped with a lens and a long length of perforated film, the latter being moved intermittently between exposures...
silver-disc pyrheliometer
An instrument that uses a blackened silver-disc reflector with a shutter to create temperature fluctuations that are...
electro-optic shutter
A device used to control or block a light beam by means of the Kerr electro-optical effect.
dark frame
A frame taken to identify electronic noise in a CCD imaging device. A dark frame is recorded without exposing the CCD to any...
lens mount
The metal tube that maintains the optical components of a lens in proper relationship. Some lenses are mounted in metal...
optical chopper
A mechanical or electrical-electromagnetic device for periodically interrupting or blocking abeam of light for a brief known...
flare
Nonimage-forming light, concentrated or diffuse, that is transmitted through the lens to the image. It is frequently the...
optical gate
An optical gate typically refers to a device or system that controls the transmission of light, allowing it to pass through...
inefficient shutter
A shutter in which the opening and closing times for a large aperture setting occupy a substantial fraction of the total...
camera
A light-tight box that receives light from an object or scene and focuses it to form an image on a light-sensitive material...
exposure meter
An instrument used to measure the light from a scene to be photographed and to indicate the camera lens and shutter settings...
electronic shutter
A mechanical shutter that has had its timing escapement replaced with an electronic timing circuit. This circuit allows a...
Kerr cell
A cell filled with a transparent material that, when placed in a strong electrical field, exhibits double refraction. Since...
high-speed motion camera
A high-speed motion camera, also known as a high-speed camera or slow-motion camera, is a specialized imaging device...
high-speed photography
Photography involving the recording of events that occur too fast to be perceived by the human eye or recorded by...
digital camera
A digital camera is a device that captures and records still images or video in digital format. Unlike traditional film...
focal plane shutter
A shutter having one or more roller blinds of material with a variable slit that moves across the back of the camera when...
liquid crystal eyewear
A wireless stereo imaging device used in conjunction with a monitor to produce a virtual interactive environment. Liquid...

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