PURPOSE: To improve electric stability, by providing a detector of multilayered structure with moistureproofing and dustproofing treatment.
CONSTITUTION: The multilayered structure 600 uses a resin plate which is a rigid substrate and made of acrylic resin, etc., having superior electric insulation. If moisture, dirt, dust, etc., are entered into between layers, the electric insulation between the layers degenerates to cause performance deterioration. For this purpose, end faces of respective layers are sealed with a sealing material 609 of epoxy resin, etc., having high insulating resistance and strength. Further, the surface of a transparent electrode 606 is coated with transparent resin 610 to form a protecting layer, cleaning dust, dirt, etc., easily. Pins 612 and 612' are provided on the left and right sides of the substrate 601 to position the detector itself accurately. An electrode 603 is extended to the rear surface of the acrylic plate 601, so a contact 607 is provided by applying gold by vacuum deposition. An electrode 606 is also provided with a contact 608 with the substrate 601 between as well as the contact 607.
SAEGUSA TSUTOMU
KAWASAKI KEIICHI
INOUE HIROSHI
OOTA SHINICHI
KITAJIMA NOBUO
