52 relations: Adaptation (eye), Aperture, Atropine, Automotive night vision, Binocular vision, Cathode ray tube, Cessna, Charge-coupled device, Cirrus Aircraft, Cone cell, Deep sea, Electromagnetic spectrum, Euchromatin, Exit pupil, Eye, Heterochromatin, Human eye, Image intensifier, Infrared, Infrared sensing in snakes, Johnson's criteria, Light, Low light level television, Luminous intensity, Mantis shrimp, Military, National Transportation Safety Board, Night vision device, Nocturnality, Outer nuclear layer, Photocathode, Photodetector, Photopsin, Photoreceptor cell, Pupil, Retina, Retinal, Rhodopsin, Rod cell, Science News, Scotopic vision, Starlight, Tapetum lucidum, Television, Thermal imaging camera, Thermal radiation, Thermographic camera, Thermography, Ultraviolet, Virginia, ..., Wavelength, 2003 invasion of Iraq. Expand index (2 more) » « Shrink index
In ocular physiology, adaptation is the ability of the eye to adjust to various levels of light.
In optics, an aperture is a hole or an opening through which light travels.
Atropine is a medication to treat certain types of nerve agent and pesticide poisonings as well as some types of slow heart rate and to decrease saliva production during surgery.
An automotive night vision system uses a thermographic camera to increase a driver's perception and seeing distance in darkness or poor weather beyond the reach of the vehicle's headlights.
In biology, binocular vision is a type of vision in which an animal having two eyes is able to perceive a single three-dimensional image of its surroundings.
The cathode ray tube (CRT) is a vacuum tube that contains one or more electron guns and a phosphorescent screen, and is used to display images.
The Cessna Aircraft Company was an American general aviation aircraft manufacturing corporation headquartered in Wichita, Kansas.
A charge-coupled device (CCD) is a device for the movement of electrical charge, usually from within the device to an area where the charge can be manipulated, for example conversion into a digital value.
The Cirrus Design Corporation, doing business as Cirrus Aircraft (and formally Cirrus Design), is an aircraft manufacturer that was founded in 1984 by Alan and Dale Klapmeier to produce the VK-30 kit aircraft.
Cone cells, or cones, are one of three types of photoreceptor cells in the retina of mammalian eyes (e.g. the human eye).
The deep sea or deep layer is the lowest layer in the ocean, existing below the thermocline and above the seabed, at a depth of 1000 fathoms (1800 m) or more.
The electromagnetic spectrum is the range of frequencies (the spectrum) of electromagnetic radiation and their respective wavelengths and photon energies.
Euchromatin is a lightly packed form of chromatin (DNA, RNA, and protein) that is enriched in genes, and is often (but not always) under active transcription.
In optics, the exit pupil is a virtual aperture in an optical system.
Eyes are organs of the visual system.
Heterochromatin is a tightly packed form of DNA or condensed DNA, which comes in multiple varieties.
The human eye is an organ which reacts to light and pressure.
An image intensifier or image intensifier tube is a vacuum tube device for increasing the intensity of available light in an optical system to allow use under low-light conditions, such as at night, to facilitate visual imaging of low-light processes, such as fluorescence of materials in X-rays or gamma rays (X-ray image intensifier), or for conversion of non-visible light sources, such as near-infrared or short wave infrared to visible.
Infrared radiation (IR) is electromagnetic radiation (EMR) with longer wavelengths than those of visible light, and is therefore generally invisible to the human eye (although IR at wavelengths up to 1050 nm from specially pulsed lasers can be seen by humans under certain conditions). It is sometimes called infrared light.
The ability to sense infrared thermal radiation evolved independently in several different families of snakes.
Johnson's criteria, or the Johnson criteria, created by John Johnson, describe both spatial domain and frequency domain approaches to analyze the ability of observers to perform visual tasks using image intensifier technology.
Light is electromagnetic radiation within a certain portion of the electromagnetic spectrum.
Low light level television (LLLTV) is a type of electronic sensing device, usually a CCD camera sensitive to wavelengths above the normal "visible" (0.4 to 0.7 micrometre) wavelengths, and into the short-wave Infrared - usually to about 1.0 to 1.1 micrometres.
In photometry, luminous intensity is a measure of the wavelength-weighted power emitted by a light source in a particular direction per unit solid angle, based on the luminosity function, a standardized model of the sensitivity of the human eye.
Mantis shrimps, or stomatopods, are marine crustaceans of the order Stomatopoda.
A military or armed force is a professional organization formally authorized by a sovereign state to use lethal or deadly force and weapons to support the interests of the state.
The National Transportation Safety Board (NTSB) is an independent U.S. government investigative agency responsible for civil transportation accident investigation.
A night vision device (NVD), also known as night optical/observation device (NOD) and night vision goggles (NVG), is an optoelectronic device that allows images to be produced in levels of light approaching total darkness.
Nocturnality is an animal behavior characterized by being active during the night and sleeping during the day.
The outer nuclear layer (or layer of outer granules or external nuclear layer), is one of the layers of the vertebrate retina, the light-detecting portion of the eye.
A photocathode is a negatively charged electrode in a light detection device such as a photomultiplier or phototube that is coated with a photosensitive compound.
Photosensors or photodetectors are sensors of light or other electromagnetic energy.
Photopsins (also known as Cone opsins) are the photoreceptor proteins found in the cone cells of the retina that are the basis of color vision.
A photoreceptor cell is a specialized type of neuroepithelial cell found in the retina that is capable of visual phototransduction.
The pupil is a hole located in the center of the iris of the eye that allows light to strike the retina.
The retina is the innermost, light-sensitive "coat", or layer, of shell tissue of the eye of most vertebrates and some molluscs.
Retinal is also known as retinaldehyde.
Rhodopsin (also known as visual purple) is a light-sensitive receptor protein involved in visual phototransduction.
Rod cells are photoreceptor cells in the retina of the eye that can function in less intense light than the other type of visual photoreceptor, cone cells.
Science News is an American bi-weekly magazine devoted to short articles about new scientific and technical developments, typically gleaned from recent scientific and technical journals.
Scotopic vision is the vision of the eye under low-light levels.
Starlight is the light emitted by stars.
The tapetum lucidum (Latin: "bright tapestry; coverlet", plural tapeta lucida) is a layer of tissue in the eye of many vertebrates.
Television (TV) is a telecommunication medium used for transmitting moving images in monochrome (black and white), or in colour, and in two or three dimensions and sound.
A thermal imaging camera (colloquially known as a TIC) is a type of thermographic camera used in firefighting.
Thermal radiation is electromagnetic radiation generated by the thermal motion of charged particles in matter.
A thermographic camera (also called an infrared camera or thermal imaging camera) is a device that forms an image using infrared radiation, similar to a common camera that forms an image using visible light.
Infrared thermography (IRT), thermal imaging, and thermal video are examples of infrared imaging science.
Ultraviolet (UV) is electromagnetic radiation with a wavelength from 10 nm to 400 nm, shorter than that of visible light but longer than X-rays.
Virginia (officially the Commonwealth of Virginia) is a state in the Southeastern and Mid-Atlantic regions of the United States located between the Atlantic Coast and the Appalachian Mountains.
In physics, the wavelength is the spatial period of a periodic wave—the distance over which the wave's shape repeats.
The 2003 invasion of Iraq was the first stage of the Iraq War (also called Operation Iraqi Freedom).
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