Radiant energy – Ion generation – Field ionization type
Reexamination Certificate
2005-06-15
2008-08-05
Berman, Jack I. (Department: 2881)
Radiant energy
Ion generation
Field ionization type
C250S2140VT
Reexamination Certificate
active
07408173
ABSTRACT:
An electron emitter provides a photocell having at least one photosensitive side, an electron accelerator, an electron collector disposed between the photosensitive side of the photocell and the electron accelerator, a non-metallic vacuum chamber having an adjustable vacuum containing the photocell, the electron accelerator and the electron collector; and a light source to excite electrons on the photosensitive side of the photocell. Upon light activation, infrared light strikes the photocell, causing electrons to be excited and released. The highly positively charged electron accelerator will attract the electrons under sufficient vacuum conditions. Some of the electrons travelling towards the electron accelerator will encounter the electron collector and be collected thereon. The device may be used as a rectifier or regulator to replace vacuum tubes such as for audio amplifiers and high voltage devices. It may also have application as an x-ray generator, an electron microscope or a display screen.
REFERENCES:
patent: 3355616 (1967-11-01), Hecker et al.
patent: 4286148 (1981-08-01), Kamps et al.
patent: 4339659 (1982-07-01), Johnson
patent: 4393322 (1983-07-01), Siegmund
patent: 4413280 (1983-11-01), Adlerstein et al.
patent: 4608519 (1986-08-01), Tosswill
patent: 4691099 (1987-09-01), Johnson
patent: 4885211 (1989-12-01), Tang et al.
patent: 4967089 (1990-10-01), Reilly et al.
patent: 5049753 (1991-09-01), Flesner
patent: 5336888 (1994-08-01), Odom
patent: 5383232 (1995-01-01), Gabbay et al.
patent: 5776623 (1998-07-01), Hung et al.
patent: 6078643 (2000-06-01), Vogelsong et al.
patent: 6653547 (2003-11-01), Akamatsu
patent: 6765347 (2004-07-01), Kusunoki et al.
patent: 7053382 (2006-05-01), Noji et al.
patent: 2001/0009970 (2001-07-01), Chornenky et al.
patent: 2004/0140432 (2004-07-01), Maldonado et al.
patent: 2004/0208281 (2004-10-01), Noji et al.
patent: 0534547 (1993-03-01), None
Massey (“Laser photoelectron sources of high apparent brightness” IEEE Journal of Quantum Electronics vol. QE-20, No. 2. Feb. 1984.
May, et al (“Picosecond photoelectron scanning electron microscope for noncontact testing of integrated circuits” Appl. Phys. Lett. 51(2) Jul. 13, 1987.
Berman Jack I.
Burri Stephen R.
Maskell Michael
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