PHOTOELECTRIC DEVICE Russian patent published in 2013 - IPC H01L31/48 H01J31/50 

FIELD: physics.

SUBSTANCE: photoelectric device is an electro-optical converter (EOC), having in an evacuated metal-ceramic housing a photocathode which is applied on the output surface of the input window of the device, and a fibre-optic plate (FOP) with a cathodoluminescent screen on its input surface whose light transmission with aluminium and light-absorbing coating, having an absorption factor of not less than 0.97, is not more than 0.01%, and mated with a photosensitive charge coupled device (PCCD) by joining through a layer of immersion liquid of an area of the sensitive element of the PCCD with an area formed on the output surface of the EOC FOP, wherein the distance between the surface of the area of the sensitive element of the PCCD and the surface of the area formed on the output surface of the FOP, should not exceed 1 mcm for refraction index of immersion of about 1.5; the outer surface of FOP outside the vacuum unit, except the area under the area of the sensitive element of the PCCD, is coated with a light-absorbing coating with an absorption factor of not less than 0.97; the metal-ceramic housing of the EOC is rigidly joined by a fastening device to the housing of the PCCD, which is mounted in the groove of the fastening device and is joined to it by a compound; free space between the outer surface of FOP, walls of the housing of the PCCD and the housing of the fastening device is filled with a compound with light transmission of not more than 0.03 in the direction of the output surface of the FOP; the distance between the lower surface of the groove for the PCCD in the fastening device and the housing of the PCCD is 02-0.5 mm longer than the distance between the surface of the area of the sensitive element of the PCCD and the surface of the area formed on the FOP.

EFFECT: improved technical characteristics of the device: contrast sensitivity and resolution, while providing the same resolution on the entire field of view.