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Bildsensor

Image sensor for use in camera system, has sensor units with surfaces whose centers span two-dimensional network, where distance to line from center region to boundary region is changed such that network forms non-equidistant grid
 
: Duparré, J.; Wippermann, F.; Bräuer, A.

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Frontpage ()

DE 102007045525 A: 20070924
DE 102007045525 A: 20070924
H04N0001
H04N0005
G02B0003
H01L0031
German
Patent
Fraunhofer IOF ()

Abstract
(A1) Bildsensor mit einer Vielzahl von Bildsensoreinheiten in einer im Wesentlichen arrayartigen Anordnung, wobei die lichtempfindlichen Flaechen der Bildsensoreinheiten zueinander beabstandete Knotenpunkte und diese zusammen mit den die Knotenpunkte verbindenden horizontalen und vertikalen Verbindungslinien ein zweidimensionales Netz aufspannen, und die arrayartige Anordnung einen Zentrumsbereich und einen Randbereich aufweist, wobei der Zentrumsbereich und der Randbereich entlang mindestens einer Verbindungslinie miteinander verbunden sind, dadurch gekennzeichnet, dass der Abstand jeweils zweier benachbarter Knotenpunkte der arrayartigen Anordnung entlang der mindestens einen Verbindungslinie im Zentrumsbereich und im Randbereich verschieden ist. Weiterhin wird ein Kamerasystem mit einem erfindungsgemaessen Bildsensor und einer zusaetzlich angeordneten Optik offenbart.

 

DE 102007045525 A1 UPAB: 20090428 NOVELTY - The sensor (1') has image sensor units e.g. opto-electronic and/or digital units, with light-sensitive surfaces e.g. photodiode, in an array-like arrangement, where centers of the surfaces are junctions spaced to each other and span a two-dimensional network with horizontal and vertical connecting lines (12, 13). Distance between two junctions of the arrangement along one of the lines is different in a center region (5) and in a boundary region (6), and/or distance to the other line from the center region to the boundary region is changed such that the network forms a non-equidistant grid. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for the following: (1) a camera system comprises an image sensor (2) a method for production of an image sensor. USE - Image sensor for use in a camera system i a portable telecommunication equipment, a scanner, a camera, an image detection equipment, terrestrial and star sensors, a satellite sensor, space flight equipments, a monitoring sensor for monitoring individual parts of an industrial system, a robotic sensor arrangement in microrobot, and a medical sensor arrangement (all claimed) as a vision aid in human eye and in a micro endoscope. ADVANTAGE - The distance between two junctions of the arrangement along one of the lines is different in the center region and in the boundary region, and/or the distance to the other line from the center region to the boundary region is changed such that the network forms a non-equidistant lattice, thus mutually avoiding restrictive aberration e.g. geometrical distortion, in the sensor. The utilization of the array-like arrangement reduces requirements to computation time and storage of required electronics.

: http://publica.fraunhofer.de/documents/N-95852.html