WO2003079739A1 - Systeme de projecteur comportant une unite de regulation - Google Patents

Systeme de projecteur comportant une unite de regulation Download PDF

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Publication number
WO2003079739A1
WO2003079739A1 PCT/DE2003/000929 DE0300929W WO03079739A1 WO 2003079739 A1 WO2003079739 A1 WO 2003079739A1 DE 0300929 W DE0300929 W DE 0300929W WO 03079739 A1 WO03079739 A1 WO 03079739A1
Authority
WO
WIPO (PCT)
Prior art keywords
fluorescent lamp
headlight system
dimmer
headlight
electronic ballast
Prior art date
Application number
PCT/DE2003/000929
Other languages
German (de)
English (en)
Inventor
Gernot Hass
Original Assignee
Gernot Hass
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gernot Hass filed Critical Gernot Hass
Priority to DE20380220U priority Critical patent/DE20380220U1/de
Priority to AU2003223887A priority patent/AU2003223887A1/en
Publication of WO2003079739A1 publication Critical patent/WO2003079739A1/fr

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/36—Controlling
    • H05B41/38—Controlling the intensity of light
    • H05B41/39—Controlling the intensity of light continuously
    • H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
    • H05B41/3921—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations
    • H05B41/3924—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations by phase control, e.g. using a triac
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/175—Controlling the light source by remote control
    • H05B47/18—Controlling the light source by remote control via data-bus transmission

Definitions

  • the invention relates to a headlamp system with control device, comprising at least one encodable digital interface and at least one fluorescent lamp and a leading edge dimmer, an electronic ballast and an electronic ballast for the fluorescent lamp, the electronic ballast being designed as a pulse device and being connected to the electrical ballast and the electronic ballast via the leading edge dimmer from the interface with a signal and the use of a compact lamp provided with a base on one side.
  • Two essential requirements placed on lighting technology in a theater or studio are changing the brightness and changing the light color emitted by a light source.
  • the change in brightness is usually implemented with dimmers that control the power supply to a light source.
  • Dimming light sources is already common in many areas of everyday life. It is used, for example, in private living areas to change the spatial atmosphere, or when illuminating objects; to achieve certain effects. In addition to the desire for more However, more and more economic reasons also play a role in the dimming operation of a light source.
  • the simplest way of dimming is to use a variable ohmic series resistor that regulates the current to the light source.
  • this is uneconomical because the power consumed by the resistance is converted into heat radiation.
  • dimmers for fluorescent lamps alternatively use leading edge or truncated circuits, e.g. ReguLux from Mörup, Copenhagen, DK, which switch the electrical current through to a fluorescent lamp.
  • the ratio of the pulse lengths between the switched electrical current and the interrupted electrical current flow determines the brightness of the fluorescent lamp. The shorter the pulse length of the switched current, the lower the brightness of the fluorescent lamp.
  • the pulse length ratio cannot be changed arbitrarily in known dimmers. With known dimmers, a control ratio of about 1:20 can be achieved, with which a stepless brightness control of a fluorescent lamp can be achieved in a range of 5-100%.
  • the pulse device can be, for example, a pulse device known by the Swiss company "se Lightmanagement AG" under the name VIP90.
  • the pulse device In connection with the phase gating dimmer, the pulse device generates a strong pulse at each period of the voltage, which safely ignites a fluorescent lamp Achieve a control ratio of up to 1: 10,000.Standard fluorescent tubes with a diameter of 26 mm can thus be continuously adjusted in their brightness in a range of 0-100%.
  • the pulse device for stepless regulation of the brightness in a range of 0-100% is limited to a power size up to 36 W.
  • the inventor has recognized that the reason for the lack of controllability cannot be determined exactly. It is observed that dark zones appear on the bend of the compact fluorescent lamp. In these dark zones, the gas discharge is re-ignited at peaks in the supply voltage. This reignition seems to make the stepless reduction down to 0% impossible. With higher outputs of such compact fluorescent lamps, a stepless regulation of the brightness in a range of approximately 0-100% is therefore not possible simply by the combination of a leading edge dimmer and a pulse device, and the inventor has therefore further developed the headlight system.
  • a headlight system with control device comprises at least one fluorescent lamp, the fluorescent lamp being associated with a leading edge dimmer, an electronic ballast and an electronic ballast, the electronic ballast comprising a pulse device with an upstream resistor, a signal received by a codable digital interface comprising the electronic ballast , which is connected to the electrical ballast, is acted upon via the phase gating dimmer in such a way that the brightness of the fluorescent lamp can be steplessly regulated in a range of 0-100% when perceived by a human eye.
  • a headlight system combines several advantages. Control by means of digital signals enables the exact reproduction of previously defined results, ie brightness levels.
  • the digital interface enables the headlight system to be included into a complex lighting control system, which is coordinated by a digital signal control system.
  • the headlight system according to the invention already forms a unit in which the individual components are already matched to one another and in which no additional interfaces for the individual components are required.
  • Another advantage is the stepless brightness control of the headlight system according to the invention in a range of 0-100%.
  • Leading edge dimmer capacitors are connected upstream and downstream.
  • an ohmic resistor is connected downstream of the phase gating dimmer.
  • the capacitive resistors "filter” the signal and smooth it to a sinusoidal shape.
  • the ohmic resistor realizes a basic load on the system, which means that fluctuations in the current flow are not so important. These measures turn pulse peaks into voltage and Avoiding electricity and preventing the fluorescent lamp from reigniting in the dark areas, which means that the brightness of the fluorescent lamp can also be regulated in the range below 1%.
  • an entire headlamp system forms a structural unit. This results in a compact design that only requires a small amount of cabling at one place of use. Dimmers, power pack, pulse device, ballast and fluorescent lamp, which are preferably arranged together in a compact sheet metal housing, are already coordinated with one another and do not require any additional interfaces.
  • a control device consisting of an encodable digital interface, digital-to-analog converter, leading edge dimmer, pulse device and electronic ballast form a structural unit and the fluorescent lamp form a separate structural unit.
  • the control device can be used more flexibly.
  • leading edge dimmer is a dimmer with a digital input. This has the advantage that the leading edge dimmer can be connected directly to the codable digital interface.
  • an interface that can be connected to a signal control system that uses a so-called DMX512 protocol is used as the encodable digital interface.
  • This is the protocol currently used most in stage technology.
  • the 256 intensity values are distributed over the brightness range of a fluorescent lamp in such a way that the transition from one intensity value to a next higher or lower intensity value appears to be stepless for a human eye. This is achieved by logarithmically distributing the intensity values over the brightness range of a fluorescent lamp, i. H. the intensity value density is highest in a brightness range of 0-10%, in which the perception of a change in brightness is strongest.
  • the information of the control channel is transmitted in digital form, channel by channel, that is to say one after the other in the so-called multiplex technology via a
  • Control line sent The speed with which this takes place is so high that it happens at the same time. In the headlight system according to the invention, this results in the advantage of being able to control a plurality of leading edge dimmers and thus fluorescent lamps at the same time, each leading edge lead dimmer, a pulse device and an electronic ballast being assigned to each fluorescent lamp.
  • the brightness of each fluorescent lamp is infinitely adjustable in a range of 0-100%.
  • One of the 512 DMX addresses is assigned to each digital interface, which then controls a light channel. It can be a DMX address be assigned to several digital interfaces, the brightness of which is then synchronously controlled for the associated fluorescent lamps.
  • the 512 controllable control loops can thus include more than 512 individual components.
  • the leading edge dimmer is an external dimmer with an analog input, which can be arranged anywhere outside the structural unit.
  • a digital / analog converter is then connected upstream of the leading edge dimmer. This results in an even more flexible adjustability of brightness levels, because the leading edge dimmer with an analog input can be continuously applied. However, the interface can then no longer be coded. Fixed settings or a separate control panel must be used for each headlight.
  • a headlight system comprises at least two fluorescent lamps with different colors. Through the separate brightness control of the fluorescent lamps, different color effects can be achieved in the overall radiation of the headlight system.
  • a headlight system comprises four fluorescent lamps with the colors white, red, green and blue.
  • the headlight system preferably forms a structural unit.
  • the fluorescent lamps it would also be possible, for example, to design the fluorescent lamps as a separate structural unit. Since the brightness of the individual fluorescent lamps is infinitely variable in a range of 0-100%, by mixing the three colors red, green and blue in the overall radiation of the headlight system, every natural color tone can be achieved with stepless transitions.
  • the white fluorescent tube is used for desaturation.
  • a horizon can be colored with a high degree of uniformity and color gradients or color accents can be provided.
  • headlight system includes fluorescent lamps can include different performance parameters. This results in even greater flexibility.
  • a headlight system comprises 4-pole base fluorescent lamps with a base type 2G11. These compact fluorescent lamps emit a very high light output, but still enable a headlight system with very small dimensions. As a result, such headlight systems are easier to handle and generate only a small amount of heat radiation, which is particularly advantageous in small studios.
  • Fig. 1 shows the schematic structure of an inventive
  • FIG. 2 shows the schematic structure of a headlight with four
  • the fluorescent lamp 10 is, for example, a compact fluorescent lamp with a power of 55 W and a base type 2G11.
  • This compact lamp has a tube which has the base 110 or 120, 130, 140 at one end, while the tube body is composed of two tube parts 11, 122 which are guided in parallel and are connected at the other tube end by a U-shaped tube part 113 , According to the invention, these non-linear tubes can also have a different shape. All tubes with tube parts deviating from the straight shape can have the problem of uneven light distribution if they do not have the dimmers according to the invention with associated resistors.
  • the fluorescent lamp 10 could also have a different type and / or a different output.
  • the fluorescent lamps 20, 30 and 40 are also fluorescent lamps of the same type, the fluorescent lamp 20 being red light emits, the fluorescent lamp 30 emits green light and the fluorescent lamp 40 emits blue light.
  • commercially available fluorescent lamps can be covered with heat-resistant colored film so that a fluorescent lamp emits a corresponding light color.
  • a ribbon cable 2 leads as a connection to the power supply unit 1, which receives a digital signal from the interface 3 and thus the phase gating dimmers 14, 24, 34, 44 are acted upon.
  • phase gating dimmers 14, 24, 34, 44 When using phase gating dimmers 14, 24, 34, 44 with an analog input, a digital / analog converter 19, 29, 39, 49 must be connected upstream.
  • a compact circuit board can also be used.
  • the pulsed electrical current flow to a fluorescent lamp is controlled by making the lamp ignition point variable during a 50 Hz mains voltage half-wave.
  • Triacs or thyristors are used as circuit breakers, in which the property is exploited that they interrupt the current flow with every O-passage of the mains voltage wave. The electrical current therefore flows from one ignition point to the next O-passage of the mains voltage.
  • Such dimmers have a very simple structure and the components used can tolerate short-term overloads.
  • the leading edge dimmers 14, 24, 34, 44 can be controlled continuously from 0 to +10 V.
  • the phase gating dimmers 14, 24, 34, 44 are acted upon with 256 intensity values.
  • the intensity values are distributed over the entire control range of the phase gating dimmers 14, 24, 34, 44 such that the transition from an intensity value to a next higher or next lower intensity value results in a change in the brightness of the associated fluorescent lamp 10, 20, 30, 40 , which is perceived by a human eye as stepless over the entire brightness range of 0-100%.
  • An electronic ballast 11 with corresponding connections 13 and an electronic ballast 12 for the fluorescent lamp 10 are connected downstream of the leading edge dimmer 14.
  • the electronic ballast 11 comprises a pulse device, which is preceded by a resistor 15.
  • the pulse device with a series resistor in combination with the phase gating dimmer causes the brightness of the fluorescent lamp 10 to be regulated continuously in a range of 0-100%.
  • the red fluorescent lamp 20 is coupled to the phase gating dimmer 24 via an electronic ballast 21, corresponding connections 23 and a ballast 22, which is acted upon via the codable digital interface 3 and the power supply unit 1.
  • the leading edge dimmer 34 for the green fluorescent lamp 30 and the leading edge dimmer 44 for the blue fluorescent lamp 40 operate in an analogous manner.
  • a first capacitor 16 at the input of the phase gating dimmer 14 "filters" pulse peaks out of the voltage and thus smoothes the voltage from the network 7 before entering the phase gating dimmer 14.
  • the output of the phase gating dimmer 14 and the direct phase 18 are through a second capacitor 17
  • the second capacitor 17 smoothes the controllable output voltage of the phase gating dimmer 14 by "filtering out” pulse peaks, so that the output signal takes on an approximately sinusoidal shape.
  • the series resistor 15 has the task of an ohmic preload. This causes a current to flow at a certain level and the pulse peaks in the current flow are damped.
  • the use of the capacitors 16, 17 and the ohmic resistor 15 eliminates current and voltage peaks, and the fluorescent lamp 10 can also be regulated continuously as a single-ended compact lamp with a power of more than 36 W in the entire range between 0 and 100%.
  • ballasts 12, 22, 32, 42 which guarantee flicker-free ignition and flicker-free light with high economy and low energy costs.
  • the electronic ballasts 12, 22, 32, 42 convert the Mains voltage in a high frequency oscillation of about 35 to 50 kHz. This makes the 100 Hz flicker, also called the stroboscopic effect, much weaker and practically invisible.
  • the brightness of all fluorescent lamps 10, 20, 30, 40 can be regulated simultaneously in a range of 0-100% via a signal received by the encodable digital interface 3, independently of one another and infinitely perceptible to the human eye, so that regardless of the respective output of a fluorescent lamp 10, 20, 30, 40 a continuous color fading of a point to be illuminated in one
  • a headlight 50 is shown schematically as a sheet metal housing with four fluorescent lamps 10, 20, 30, 40, which are designed as compact fluorescent lamps.
  • the fluorescent lamps 10, 20, 30, 40 have a U-shape, so that the ends of the fluorescent lamps 10, 20, 30, 40 each lie next to one another and only one base 110, 120, 130, 140 per fluorescent lamp 10, 20, 30 , 40 is needed.
  • the base type 2G11 has been selected here for bases 110, 120, 130, 140.
  • Compact fluorescent lamps of this type have powers of 55 W or higher.
  • the fluorescent lamp 10 preferably provides white light, the fluorescent lamp 20 red, the fluorescent lamp 30 green and the fluorescent lamp 40 blue light.
  • the fluorescent lamps 10, 20, 30, 40 instead of the fluorescent lamps 10, 20, 30, 40, only white fluorescent lamps 10, red fluorescent lamps 20, green fluorescent lamps 30 or blue fluorescent lamps 40 can also be used become. If the brightness requirement is greater, this compact unit of white, red, green and blue fluorescent lamps 10, 20, 30, 40 is to be multiplied.
  • the colored light is obtained by providing the U-shaped fluorescent lamps with a colored coating. Heat-resistant foils are preferably used as the coating, which are shaped as tubes adapted to the design of the fluorescent lamps 10, 20, 30, 40. Such tubular coverings can be pushed over the fluorescent lamps 10, 20, 30, 40 and removed again if necessary, for example when changing colors or replacing lamps.
  • the headlight 50 has a reflector which consists of four reflector parts 51, 52, 53, 54 which are attached to the side of the headlight 50. These reflectors are mirrored and improve the light output.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

L'invention concerne un système de projecteur comportant une unité de régulation, composé d'au moins une interface numérique codable, d'au moins un tube fluorescent respectif, d'un gradateur de lumière d'entrée de phase, d'un régulateur électronique et d'un ballast électronique destiné au tube fluorescent, le régulateur électronique étant conçu en tant qu'impulseur et relié au ballast électronique. Par ailleurs, le régulateur électronique peut recevoir un signal de l'interface par l'intermédiaire du gradateur de lumière d'entrée de phase. L'invention concerne également l'utilisation d'une lampe compacte pourvue d'un culot sur un côté. Selon l'invention, on emploie un tube fluorescent conçu en tant que lampe compacte comportant un culot sur un côté, dont le tube n'est pas linéaire et la luminosité peut être régulée en continu de 0 à 100 %. Une résistance capacitive servant à lisser la tension de régulation est montée en amont du gradateur de lumière d'entrée de phase, côté entrée, et une résistance ohmique servant de charge de base pour le système est montée en aval dudit gradateur. De tels systèmes de projecteur servent à créer des effets d'éclairage dans des théâtres, des studios et des scènes, ainsi que dans l'éclairage d'objets.
PCT/DE2003/000929 2002-03-20 2003-03-20 Systeme de projecteur comportant une unite de regulation WO2003079739A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE20380220U DE20380220U1 (de) 2002-03-20 2003-03-20 Scheinwerfer mit Regeleinrichtung
AU2003223887A AU2003223887A1 (en) 2002-03-20 2003-03-20 Spotlight system having a regulating device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10212503 2002-03-20
DE10212503.1 2002-03-20

Publications (1)

Publication Number Publication Date
WO2003079739A1 true WO2003079739A1 (fr) 2003-09-25

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PCT/DE2003/000929 WO2003079739A1 (fr) 2002-03-20 2003-03-20 Systeme de projecteur comportant une unite de regulation

Country Status (3)

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AU (1) AU2003223887A1 (fr)
DE (1) DE20380220U1 (fr)
WO (1) WO2003079739A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2393859A (en) * 2002-08-22 2004-04-07 Traypoint Ltd Dimmable lighting

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0046395A1 (fr) * 1980-08-18 1982-02-24 THE GENERAL ELECTRIC COMPANY, p.l.c. Dispositif atténuateur d'éclairage pour lampes électriques à décharge
EP0123963A2 (fr) * 1983-04-30 1984-11-07 BROWN, BOVERI & CIE Aktiengesellschaft Mannheim Dispositif de circuit pour la commande d'intensité de lumière pour lampe à fluorescence
US5502423A (en) * 1993-04-23 1996-03-26 Matsushita Electric Works, Ltd. Discharge lamp lighting device
WO1999038248A1 (fr) * 1998-01-20 1999-07-29 Bytecraft Pty. Ltd. Convertisseur de puissance ca
US5955847A (en) * 1994-06-10 1999-09-21 Beacon Light Products, Inc. Method for dimming a fluorescent lamp
US6222325B1 (en) * 1997-11-21 2001-04-24 Stmicroelectronics S.A. Fluorescent lamp control circuit
US6323603B1 (en) * 1998-02-18 2001-11-27 Nicollet Technologies Corporation Resonant flyback ignitor circuit for a gas discharge lamp control circuit

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0046395A1 (fr) * 1980-08-18 1982-02-24 THE GENERAL ELECTRIC COMPANY, p.l.c. Dispositif atténuateur d'éclairage pour lampes électriques à décharge
EP0123963A2 (fr) * 1983-04-30 1984-11-07 BROWN, BOVERI & CIE Aktiengesellschaft Mannheim Dispositif de circuit pour la commande d'intensité de lumière pour lampe à fluorescence
US5502423A (en) * 1993-04-23 1996-03-26 Matsushita Electric Works, Ltd. Discharge lamp lighting device
US5955847A (en) * 1994-06-10 1999-09-21 Beacon Light Products, Inc. Method for dimming a fluorescent lamp
US6222325B1 (en) * 1997-11-21 2001-04-24 Stmicroelectronics S.A. Fluorescent lamp control circuit
WO1999038248A1 (fr) * 1998-01-20 1999-07-29 Bytecraft Pty. Ltd. Convertisseur de puissance ca
US6323603B1 (en) * 1998-02-18 2001-11-27 Nicollet Technologies Corporation Resonant flyback ignitor circuit for a gas discharge lamp control circuit

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
SE LIGHTMANAGEMENT AG: "Detailbeschreibung EVG Ansteuerungen 1-10V, DSI oder DALI", ADAPTOLUX, June 2001 (2001-06-01), Spreitenbach, CH, pages 1 - 12, XP002246224 *
SE LIGHTMANAGEMENT AG: "Handbuch Lichtsteuergeräte", ADAPTOLUX, June 2001 (2001-06-01), Spreitenbach, CH, pages 1 - 11, XP002246226 *
SE LIGHTMANAGEMENT AG: "Leuchteneinbaugerät Typ VIP90", APAPTOLUX, 2001, Spreitenbach, CH, pages 1 - 2, XP002246225 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2393859A (en) * 2002-08-22 2004-04-07 Traypoint Ltd Dimmable lighting

Also Published As

Publication number Publication date
DE20380220U1 (de) 2005-03-10
AU2003223887A1 (en) 2003-09-29

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