PHOTODETECTOR Russian patent published in 2009 - IPC H01L27/14 

FIELD: physics, photography.

SUBSTANCE: photodetector contains at least a single photoreceiving module consisting of a substrate with photoreceiving matrix(ces) arranged on its work side so that to be in the image focus, control elements and signal processing elements (electrically interconnected). The substrate is positioned at angle α relative to the radiation direction line. The photoreceiving matrices are grouped into a column oriented along the radiation direction line. The control elements and the signal processing elements are arranged outside the focal plane as related to the matrices with a mirror arranged before the matrices at angle β relative to the substrate. Values of the α and β angles correlate as follows: α=(2β-90°), 0<β<90°. The photoreceiving modules form a periodical structure of rows and columns of matrices due to arrangement of the substrates work sides within at least a single plane. The substrates work sides are arranged within two planes forming an angle 2 α and symmetrical relative to the principal plane oriented along the radiation direction line. The row intermatrix spacing is equal to α=2L. The work sides of the substrates arranged within one plane are turned towards those of the other plane substrates. The rows of photoreceiving matrixes as arranged within the two different planes are shifted relative to each other to a length of L along the row with the mirrors of each of the photoreceiving modules crossing the principal plane in the same straight line. Thickness of the substrates equipped with photoreceiving matrices is calculated from expression W≥h•tg β where h is height of the column composed of photoreceiving matrices arranged close to each other with the unwork side of each of the successive substrate having a mirror turned towards the photoreceiving matrices rows of the preceding substrate.

EFFECT: enhanced integration density of photoreceiving matrices within the focal plane and improved photoreceiving matrices shielding against background radiation.

4 cl, 6 dwg