Inductorless controlled transition and other light dimmers

Details Inductorless controlled transition and other light dimmers Inductorless controlled transition and other light dimmers

1991-11-25

1993-07-06

Hoff, Marc S.

Electricity: power supply or regulation systems

Output level responsive

Zero switching

307647, 315194, 323242, G05F 110

Patent

active

052257657

ABSTRACT:
A light dimmer, especially useful for entertainment lighting, provides a high degree of stability in dimmer performance by employing a high level of analog negative feedback and correcting for the undesirable effects on dimmer "curve" by precompensating the input value while it is digital. A lighting control system distributes both the alternating current supply and control signals representing desired adjustments to fixture intensity via a housing common to multiple enclosures. Each enclosure contains at least one dimmer and mechanically engages the housing, from which it obtains a power input via power contacts and a control signal via an electrically isolated coupling comprising an effective source on the housing and detector on the enclosure.

REFERENCES:
patent: 3142781 (1964-07-01), Izenour
patent: 3193728 (1965-07-01), Skirpan
patent: 3200327 (1965-08-01), Fleming
patent: 3243653 (1966-03-01), Locklin
patent: 3256463 (1966-02-01), Davis
patent: 3274484 (1966-09-01), Gebhardt et al.
patent: 3397344 (1968-08-01), Skirpan
patent: 3667030 (1972-05-01), Gordon et al.
patent: 3691404 (1972-09-01), Swygert, Jr.
patent: 3706913 (1972-12-01), Malatchi
patent: 3733528 (1973-05-01), Gilbreath
patent: 3821601 (1974-06-01), Kappenhagen et al.
patent: 3845351 (1974-10-01), Von Ballmoas et al.
patent: 3879652 (1975-04-01), Billings
patent: 3898416 (1975-08-01), Nakasone
patent: 3924120 (1975-12-01), Cox, III
patent: 3943397 (1976-03-01), Yancey
patent: 3990000 (1976-11-01), Digneffe
patent: 4057751 (1977-11-01), Bonsignore et al.
patent: 4080548 (1978-03-01), Johnson
patent: 4086526 (1978-04-01), Grudelbach
patent: 4219761 (1980-08-01), Mustoe
patent: 4241295 (1980-12-01), Williams, Jr.
patent: 4287468 (1981-09-01), Sherman
patent: 4325021 (1982-04-01), McMackin
patent: 4331914 (1982-05-01), Huber
patent: 4355309 (1982-10-01), Hughey et al.
patent: 4392187 (1983-07-01), Bornhorst
patent: 4423478 (1983-12-01), Bullock et al.
patent: 4438356 (1984-03-01), Fleisher
patent: 4447765 (1984-05-01), Cote
patent: 4450384 (1984-05-01), Krokaugger
patent: 4484190 (1984-11-01), Bedard
patent: 4500802 (1985-02-01), Janutka
patent: 4504779 (1985-03-01), Haman
patent: 4528494 (1985-07-01), Bloomer
patent: 4540893 (1985-09-01), Bloomer
patent: 4547828 (1985-10-01), Bloomer
patent: 4567425 (1986-01-01), Bloomer
patent: 4598345 (1986-07-01), Kleeman
patent: 4617508 (1986-10-01), Bloomer
patent: 4633161 (1986-12-01), Callahan et al.
patent: 4649302 (1987-03-01), Damiano
patent: 4688154 (1987-08-01), Nilssen
patent: 4688161 (1987-08-01), Covington
patent: 4689547 (1987-08-01), Rowen et al.
patent: 4704656 (1987-11-01), Neiger
patent: 4705960 (1987-11-01), Lovrenich
patent: 4823069 (1989-04-01), Callahan et al.
patent: 4931916 (1990-06-01), Callahan
patent: 4972125 (1990-11-01), Cunningham et al.
patent: 4975629 (1990-12-01), Callahan et al.
patent: 4977484 (1990-11-01), Cunningham et al.
patent: 4984143 (1991-01-01), Richardson
patent: 5005211 (1991-04-01), Yuhasz
"Bright New World?--Part III", M. Callahan, Lighting Dimensions magazine, vol. VII, No. 3, Jun. 1983, pp. 35-42.
TBA Technology, "Magic Lantern, The Low Voltage Solution" brochure, undated.
Lighting Methods, Inc., L86/I5M data sheet, undated.
Electronics Diversified, Inc., "Problem/Solution" USITT TD&T publication, Winter 1991, Vol. XXVII, No. 1, p. 22.
Electronics Diversified, Inc., "Omega", Theatre Crafts Directory, Jun./Jul. 1988, vol. 22, No. 6, p. 69.
Comprehensive Video Supply Co. IR-1000 Dimmer listing, Lighting Dimensions 1985/86 Buyers Guide & Directory, Sep. 1, 1985, vol. IX, No. 5, p. 151.
"Product Report Union Connector's SU-1/DIGI-1" Reprinted from Theatre Crafts magazine, May 1984.
Union Connector Co., Inc., Series 2400 Wireless Remote Control Stage Lighting System data sheet, 1984.
"Skirpan Design Fills TV Gap" Reprinted from TV Technology, Aug. 1984.
Union Connector Co., Inc., Unitrol Dimming System brochure, 1986.
"Power Supply Aspects of Semiconductor Equipment", H. A. Gauper, Jr., J. D. Harden, Jr., A. M. McQuarrie, IEEE Spectrum (USA), vol. 8, No. 10, pp. 32-43, (Oct. 1971).
"Lamp Acoustical Noise and the Reverse Phase Controlled Dimmer", R. M. Burkhart, R. W. Burtness, 1971 Sixth Annual Meeting of the IEEE Industry and General Applications Group, Cleveland, Ohio, USA, Oct. 18-21, 1971 (New York, USA: IEEE 1971) pp. 949-966.
"Lamp Acoustical Noise and the Reverse Phase Controlled Dimmer", R. M. Burkhart, R. W. Burtness, IEEE Trans. Ind. Appl. (USA), vol. 1A-8, No. 1, pp. 84-88, (Jan.-Feb. 1972).
"Reverse Phase Control Dimmer for Incandescent Lighting", R. M. Burkhart, D. L. Ostrodka, Industrial Applications Society IEE-IAS Annual Meeting, Toronto, Ontario, Canada, 1-5, Oct. 1978 (New York, USA: IEEE 1978) pp. 614-617.
"Reverse Phase Control Dimmer for Incandescent Lighting", R. M. Burkhart, D. L. Ostrodka, IEEE Trans. Ind. Appl. (USA), vol. 1A-5, No. 5, pp. 579-583, (Sep.-Oct. 1979).
"Using VMOS for Direct and Reverse Phase Control", C. F. Christiansen, M. Benedetti, Rev. Telegr. Electron. (Argentina), vol. 69, No. 819, pp. 499-503 (Jun. 1981).
"Power FET Controlled Dimmer for Incandescent Lamps", C. F. Christiansen, M. Benedetti, IEEE Trans. Ind. Appl. (USA), vol. 1A-19, No. 3, pt. 1, pp. 323-327, (May-Jun. 1983).
Electro Controls, QD.TM. Series Dimmer brochure, undated.
Strand Lighting, Lightboard XP/DC90 Dimmer brochure, undated.
Vari-Lite, Inc., VL3 Wash Luminaire data sheet, 1987.
"Stage Lighting and the State of the Art in Twenty Years", J. F. Rubin, Lighting Dimensions magazine, vol. VII, No. 1, Mar. 1983, pp. 52-60.
"Bright New World? Tour System Design for the 1980s", M. Callahan, Lighting Dimensions magazine, vol. VII, No. 1, Mar. 1983, pp. 62-73.
"Dimming and Lighting Control . . . State of What Art?", J. M. Good, III, International Technical Conference, Theatre, Television, and Film Lighting, Committee of Illuminating Engineering Society, 5 Oct. 1987, Montreal, Quebec, Canada.
Theatre Crafts magazine, vol. 20, No. 8, Oct. 1986, p. 14.
Production Arts Lighting, Inc., Model 96-2400 High Density Dimmer Rack data sheet, 83-V-6.
"Dimming Controls Provide Stage Production Sparkle", M. O'Neal, Contractor's Electrical Engineering magazine, vol. 39, No. 4, Apr. 1987, pp. 46-48.

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