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Sensor Sees in Dim Light

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ROCHESTER, N.Y., June 14, 2007 -- Eastman Kodak Co. today introduced an image sensor that it said is at least twice as sensitive to light as those currently found in any digital camera. Image sensors act as the "eye" of a digital camera by converting light into electric charge to begin the process of taking a photo. Kodak said its new sensor technology, invented by Kodak scientists John Compton and John Hamilton, provides a 2X to 4X increase in sensitivity to light (from one to two photographic stops) compared to current sensor designs. A Kodak worker in the lab. (Photos courtesy Eastman Kodak Co.) “This represents a new...Read full article

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    Published: June 2007
    Glossary
    chrominance
    The difference between any color and a reference color having equal luminance and a specified chromaticity.
    color
    The attribute of visual experience that can be described as having quantitatively specifiable dimensions of hue, saturation, and brightness or lightness. The visual experience, not including aspects of extent (e.g., size, shape, texture, etc.) and duration (e.g., movement, flicker, etc.).
    digital
    Denoting the use of binary notation; i.e., the representation of data by bits (1 or 0).
    image
    In optics, an image is the reconstruction of light rays from a source or object when light from that source or object is passed through a system of optics and onto an image forming plane. Light rays passing through an optical system tend to either converge (real image) or diverge (virtual image) to a plane (also called the image plane) in which a visual reproduction of the object is formed. This reconstructed pictorial representation of the object is called an image.
    light
    Electromagnetic radiation detectable by the eye, ranging in wavelength from about 400 to 750 nm. In photonic applications light can be considered to cover the nonvisible portion of the spectrum which includes the ultraviolet and the infrared.
    luminance
    Luminous flux emitted from a surface per unit solid angle per unit of area, projected onto a plane normal to the direction of propagation. Also known as brightness and luminous sterance.
    photonics
    The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
    pixel
    A pixel, short for "picture element," is the smallest controllable element of a digital image or display. It is a fundamental unit that represents a single point in a raster image, which is a grid of pixels arranged in rows and columns. Each pixel contains information about the color and brightness of a specific point in the image. Some points about pixels include: Color and intensity: In a colored image, each pixel typically consists of three color channels: red, green, and blue (RGB). The...
    sensor
    1. A generic term for detector. 2. A complete optical/mechanical/electronic system that contains some form of radiation detector.
    Bayer PatternBiophotonicscamera phonecamerasCCDchrominanceCMOScolordigitalEastman KodakEastman Kodak Co.Employmentimageimage sensorindustrialJohn ComptonJohn HamiltonKodaklightlight sensitivelight sensitivityluminanceNews & FeaturespanchromaticphotonicspixelsensorSensors & Detectorsstill camera

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