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A staring array, also known as staring-plane array or focal-plane array (FPA), is an image sensor consisting of an array (typically rectangular) of light-sensing pixels at the focal plane of a lens. FPAs are used most commonly for imaging purposes (e.g. taking pictures or video imagery), but can also be used for non-imaging purposes such as ...
Focal-plane arrays (FPAs) are widely used in radio astronomy. FPAs are arrays of receivers placed at the focus of the optical system in a radio-telescope. The optical system may be a reflector or a lens. Traditional radio-telescopes have only one receiver at the focus of the telescope, but radio-telescopes are now starting to be equipped with ...
Focal plane array. A matrix of sensors positioned in the focal plane of a lens or other focusing device. [12] FPS: Frames per second. Used in reference to maximum continuous shooting rate or video. [17] GIF: Graphics Interchange Format. A computer file format for coloured images, restricted to 256 colours and useful for small file-size. [8] GN ...
The design was physically large, being two focal lengths in length and one focal length in diameter. There are two menisci at the front and a single strong meniscus element at the rear. The rear element is close to the film plane for low distortion and better contrast but interferes with the mirror on a single-lens reflex camera.
The two-dimensional optical transfer function at the focal plane can be calculated by integration of the 3D optical transfer function along the z-axis. Although the 3D transfer function of the wide-field microscope (b) is zero on the z -axis for z ≠ 0; its integral, the 2D optical transfer, reaching a maximum at x = y = 0.
The angular resolution R of an interferometer array can usually be approximated by = where λ is the wavelength of the observed radiation, and B is the length of the maximum physical separation of the telescopes in the array, called the baseline. The resulting R is in radians. Sources larger than the angular resolution are called extended ...
Another type of image sensor technology that is related to the APS is the hybrid infrared focal plane array (IRFPA), [1] designed to operate at cryogenic temperatures in the infrared spectrum. The devices are two chips that are put together like a sandwich: one chip contains detector elements made in InGaAs or HgCdTe , and the other chip is ...
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