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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. A shutter that opens and closes near to the film or image sensor, usually as a fast-moving slit, as contrasted with a bladed/leaf shutter located near a nodal point of a lens. [12] FPA: 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 ...
A system is focal if an object ray parallel to the axis is conjugate to an image ray that intersects the optical axis. The intersection of the image ray with the optical axis is the focal point F ′ in image space. Focal systems also have an axial object point F such that any ray through F is conjugate to an image ray parallel to the optical axis.
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 ...
Retrieved from "https://en.wikipedia.org/w/index.php?title=Focal_plane_array&oldid=727287824"This page was last edited on 28 June 2016, at 00:04 (UTC) (UTC)
In a photodiode array, pixels contain a p-n junction, integrated capacitor, and MOSFETs as selection transistors. A photodiode array was proposed by G. Weckler in 1968, predating the CCD. [ 1 ] This was the basis for the PPS, [ 2 ] which had image sensor elements with in-pixel selection transistors, proposed by Peter J.W. Noble in 1968, [ 13 ...
The image plane is parallel to axes X1 and X2 and is located at distance from the origin O in the negative direction of the X3 axis, where f is the focal length of the pinhole camera. A practical implementation of a pinhole camera implies that the image plane is located such that it intersects the X3 axis at coordinate -f where f > 0.
Focal plane array testing is the process of verifying and validating that these devices function correctly. Focal plane arrays are complex to develop, in some cases the fabrication process may have more than 150 steps, [ 1 ] testing of these devices must ensure that each step has the desired result.