Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1990-04-17
1993-11-16
Chilcot, Jr., Richard E.
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359143, 359184, 34082531, 307633, H04B 1000
Patent
active
052628850
ABSTRACT:
A control circuit comprising a thyristor and a feedback circuit formed by an inductance and a generator for producing electrical energy in response to a luminous event. The feedback circuit controls the conducting or cut-off state of the thyristor by the fact that a trigger-gate of the thyristor is connected to a terminal of the generator having a polarity cutting off the thyristor when the generator is illuminated. The thyristor is switched on in response to an energy stored in the inductance, which energy is caused by a sudden discontinuity of the luminous event.
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patent: 4297594 (1981-10-01), Onda et al.
patent: 4299464 (1981-11-01), Cushman
patent: 4733103 (1988-03-01), Itoh et al.
patent: 4816891 (1989-03-01), Nishizawa
patent: 4901068 (1990-02-01), Benton et al.
patent: 4963820 (1990-10-01), Medlin
Courdille Michel
Delmas Giles
Hazan Jean-Pierre
Steers Michel
Zaaijer Gerrit E.
Chilcot Jr. Richard E.
Negash Kinfe-Michael
Schreiber David
U.S. Philips Corporation
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