Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Patent
1997-12-10
1999-12-21
Westin, Edward P.
Radiant energy
Photocells; circuits and apparatus
Photocell controlled circuit
250207, 313372, 313475, H01J 2924
Patent
active
060052392
ABSTRACT:
In an image intensifier comprising an entrance faceplate, made of a material transparent to light, having a photoelectric surface, formed on a surface opposite to a light entrance surface, for photoelectrically converting incident light into an electron; and an optical fiber block, constituted by a plurality of optical fibers bundled together, having a phosphor face at an end face of each optical fiber on the light entrance side, for emitting light in response to the electron incident thereon; the photoelectric surface of the entrance faceplate and the phosphor face of the optical fiber block opposing each other, while a vacuum atmosphere being formed therebetween; the optical fiber block is provided with a pit in which an end face of a core portion of each optical fiber is recessed from an end face of a cladding portion thereof, the bottom of the pit is filled with a phosphor, the surface of this phosphor is provided with a metal back layer, the cladding portion projects from the surface of the phosphor toward the entrance surface by a predetermined height, and the projecting surface of the cladding portion is provided with a metal film.
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patent: 4647811 (1987-03-01), Galves et al.
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patent: 4886537 (1989-12-01), Patrick
Ishihara Yoshitoshi
Ito Masuo
Kondo Minoru
Suzuki Hideki
Hamamatsu Photonics K.K.
Luu Thanh X.
Westin Edward P.
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