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human eye Dictionary Terms

presbyopia
A state in which the human eye has very little or no power of accommodation. A common and normal condition in the eyes of those age 50 and older.
indium gallium arsenide camera
An InGaAs (indium gallium arsenide) camera is a type of imaging device that utilizes InGaAs sensors to capture images in the...
pupilometer
An instrument for measuring the diameter of the human eye pupil.
light fidelity
LiFi, short for light fidelity, is a wireless communication technology that utilizes visible light or infrared light to...
image intensifier
An image intensifier, also known as an image intensification tube or image intensification device, is a specialized...
intrabeam viewing
With respect to laser radiation, the subjection of the human eye to all or a portion of the laser beam.
perceived color
The apparent color, as seen by the human eye, as distinguished from color as a measurable property of light.
Maddox rod
Lenslike composition of stacked glass cylinders through which a spot of light appears as a streak perpendicular to the...
light adaptation
The ability of the human eye to adjust itself to an alteration in the intensity of light.
retina
1. The photosensitive membrane on the inside of the human eye. 2. A scanning mechanism in optical character generation.
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...
photometry
Photometry is the branch of science that deals with the measurement of light, particularly in terms of its intensity and the...
lumen
A lumen is a unit of measurement used to quantify the amount of luminous flux, which is the perceived power of light. In...
near-infrared camera
A near-infrared (NIR) camera is an imaging device designed to capture images in the near-infrared region of the...
minimum separable
The least space between two parallel lines that can be discriminated as a gap to the human eye. It is measured in terms of...
infrared light source
An infrared light source is a device that emits light in the infrared spectrum, which lies beyond the visible spectrum of...
high-speed photography
Photography involving the recording of events that occur too fast to be perceived by the human eye or recorded by...
image enhancement
The digitization process by which an image is manipulated to increase the amount of information perceivable by the human eye.
microreciprocal degree
An approximated measure of the smallest change in color temperature detectable by the human eye, defined as the reciprocal...
ophthalmic photography
The methods and techniques used to obtain medical photographs of the human eye. To photograph the exterior of the eye,...
ophthalmic
Pertaining to the human eye.
dark adaptation
The ability of the human eye to adjust itself to low levels of illumination.
neuromorphic vision sensor
A neuromorphic vision sensor is a type of imaging device designed to mimic the structure and functioning of the human visual...
eye tracker
An optical device used to monitor movement of the human eye.
trichromacy
The basis of color vision in the human eye. Three types of cones have been identified, each having a unique spectral...
rotary laser
A structured light device using a rapidly rotating laser to project a beam of light that appears to the human eye as a...
red, green, blue
RGB stands for red, green, blue, which are the primary colors of light used in additive color mixing. The RGB color model is...
stereoscopic radius
The maximum distance at which the stereoscopic effect may be observed. With respect to the unaided human eye, it has been...
minimum perceptible
The smallest object that may be seen, measured in terms of the angle subtended by the object measured at the eye. Also...

(29 results found)

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