EP0926704A1 - Lampe plate à décharge à barrière diélectrique - Google Patents

Lampe plate à décharge à barrière diélectrique Download PDF

Info

Publication number
EP0926704A1
EP0926704A1 EP97122798A EP97122798A EP0926704A1 EP 0926704 A1 EP0926704 A1 EP 0926704A1 EP 97122798 A EP97122798 A EP 97122798A EP 97122798 A EP97122798 A EP 97122798A EP 0926704 A1 EP0926704 A1 EP 0926704A1
Authority
EP
European Patent Office
Prior art keywords
discharge
signal
lamp
signal lamp
traffic
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP97122798A
Other languages
German (de)
English (en)
Inventor
Frank Dr. Vollkommer
Lothar Dr. Hitzschke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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 Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Priority to EP97122798A priority Critical patent/EP0926704A1/fr
Priority to HU0001317A priority patent/HUP0001317A3/hu
Priority to JP53445799A priority patent/JP2001513256A/ja
Priority to EP98965815A priority patent/EP0976144A1/fr
Priority to PCT/EP1998/008104 priority patent/WO1999034410A1/fr
Priority to US09/367,539 priority patent/US6348760B1/en
Publication of EP0926704A1 publication Critical patent/EP0926704A1/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J65/00—Lamps without any electrode inside the vessel; Lamps with at least one main electrode outside the vessel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers
    • H01J61/305—Flat vessels or containers

Definitions

  • the present invention relates to the field of signal lamps, as they are used primarily with traffic signals and traffic signs Find. In particular, it relates to a traffic light.
  • Another important aspect is that with signal lamps depending on the application certain designs or sizes are desired.
  • a final aspect is the temperature development of incandescent lamps one is large in overall performance and the other is strongly localized.
  • the resulting thermal cycles and thermal gradients form one Stress on the lamp and its technical environment, in particular in non-stationary operating states.
  • the result is a relative one limited switching stability.
  • This invention is based on the technical problem of a new signal lamp indicate the ways to avoid the mentioned Offers difficulties.
  • a gas discharge lamp with one that is at least partially transparent to visible radiation and with a gas filling discharge vessel and with a dielectric Layer between at least one discharge electrode and the gas filling for a dielectric barrier discharge in the discharge vessel, characterized in that the lamp is a signal lamp with a signal surface and the discharge vessel is a continuous boundary surface has, which corresponds to the signal area.
  • the invention is based on the knowledge that many conventional Reservations against the use of gas discharge lamps in the area the signal lamp technology can either be overcome technically or the associated disadvantages in favor of other benefits in buying can be taken.
  • First speaks against the use of Gas discharge lamps compared to incandescent or halogen incandescent lamps Need to use elaborate starting circuits or electronic Ballasts.
  • On the other hand especially in the field of electronic Ballasts make significant progress in reducing the Price and size have been achieved, and also in the field of conventional Halogen light bulbs are transformed by transformers using low-voltage technology accepted similar disadvantages.
  • a major advantage of this invention is that of the individual Requirements very flexible in shape and size, especially adaptable geometry of flat lamp discharge lamps. Discharge lamps stand out through a largely homogeneous distribution of light generation over the discharge volume, so that additional optical components can often be omitted. So the z. B. at traffic lights the annoying Specular reflectors and phantom light for reducing of the phantom light additional screens are not necessary. Rather, it can be done only with regard to the flat lamp discharge lamp the phantom light effect achieved a much better result than when using these components in the conventional case, whereby there is an important contribution to road safety.
  • the mirror reflectors have led to the possibility of directional distribution adjust the light emission very well and choose can.
  • gas discharge lamps in particular if there are no additional specular reflectors, one too undirected Radiation z. B. to get into the half space that really in the decisive directions did not produce sufficient luminance.
  • there are possibilities according to the invention found the luminance distribution even in the case of flat radiators Focus gas discharge lamps if this is in a particular Use case is necessary.
  • Reflectors, filter discs, etc. also include the advantage of the invention that the elaborate and by the adjustment due to the thermal cycles adjustment required during operation or at least when changing the light bulb the position of the light bulb or its base is also eliminated.
  • Fluorescent lamps are also generally less sensitive to Vibrations as incandescent lamps and are therefore very suitable better for various mechanical shocks or vibrations exposed locations of signal lamps, especially in the traffic sector.
  • This invention is primarily intended for flat radiator discharge vessels, in which a continuous flat shape of the discharge volume directly at least essentially specifies the shape of the flat radiator.
  • a continuous flat shape of the discharge volume directly at least essentially specifies the shape of the flat radiator.
  • conventional tube discharge tubes the For example, backlighting a flat lens, none continuously flat discharge vessels if they are used to fill the backlight Surface are coiled accordingly or in serpentines.
  • the flat radiator can still have wavy surfaces or to be curved in its flatness.
  • the signal area mentioned in claim 1 is that for exercising the signal function the area used for the signal lamp. It can have a signal color Have lettering, carry hazard symbols etc. This signal area does not have to with the assigned boundary surface of the discharge vessel be identical and can be, for example, by means of different optical intermediate layers be separate from it. In any case, the signal area is at least essentially back-lit through the boundary surface or illuminates and corresponds to it at least in this sense. Prefers are the signal area and the corresponding boundary area also geometrically congruent.
  • the electrodes are the flat-beam discharge vessel arranged on one of its surfaces, in particular so that they run side by side.
  • the discharge vessel Through this there is a common arrangement on one surface of the discharge vessel the possibility of a particularly simple production because only one surface must be coated with electrode structures. In addition, this means that discharge structures fill the surface particularly evenly produce. This is from the description of what follows below Embodiment clearly.
  • discharge electrodes can continue the discharge anodes and the discharge cathodes from a plurality parallel discharge anodes and cathodes each together connected on a common side (the anodes or the cathodes) and be connected to a single anode or cathode connection.
  • a straight line Shape of the discharge anodes and cathodes with opposite ones Sides to a comb-like arrangement of the discharge anodes and cathodes extending common connections.
  • projections can be made on the electrodes for local Definition of a single discharge element, that is, a single one from the plurality of discharges. This is also on referred to the embodiment.
  • At least the anode side must be covered with a dielectric layer.
  • a dielectric layer which also in the main claim listed dielectric layer can, however, also through a wall of the Discharge vessel can be formed when at least part of the electrodes is applied on the outside of this wall.
  • the radiation behavior of the gas discharge flat radiators is fundamental relatively diffuse, d. H. in all directions from the plane of the flat radiator directed. This also applies to the optional use of a diffuse reflective layer.
  • a further configuration is required for some applications to be preferred to the invention, in which the substantially (with one-sided Reflection layer) the solid angle area covering the half space the light radiation is restricted to a narrower solid angle range.
  • luminance reinforcement layers in particular Fresnel lenses or prism foils or prism plates as simple flat optical elements used on the flat radiator.
  • brightness enhancement foils as prism foils (Brightness Enhancer) can be used that the cone of light emission in one dimension, or when using two in their longitudinal direction of the prism right-angled brightness enhancement films in two dimensions, narrow.
  • Brightness Enhancer Such brightness enhancement films are described below in Embodiment described in more detail.
  • the luminance enhancement layers can also be prism-free, for example with a refractive index variation, be constructed.
  • a diffusely scattering film or plate can also be used, with the simultaneous use of a prismatic film on the lamp side from that.
  • Such a diffuser is particularly advantageous if one Larger area of the discharge vessel through support points, that is, across the plane of the flat radiator Small columns between the discharge volume enclosing plates, is stabilized. Through the diffuser these support points are less visible.
  • the Xe Excimer system can be used. This is preferred used with a pulsed discharge operation.
  • Xe excimer discharge lamps and the pulsed discharge operation referred to the applications WO 94/23442 and DE-P 43 11 197.1 and WO 97/04625 and DE 195 26 211.5, the disclosure of which is referred to here and is included.
  • This invention relates generally to signal lamps of all types. Various areas of application have already been described in the introduction. However, it is particularly useful in the transport sector and both in road traffic, rail traffic, shipping as well Air traffic. A particular aspect of the invention relates accordingly on a traffic sign or a traffic signal that an inventive Signal lamp contains or consists of it. Many of the above Advantages of the invention, such as the lower susceptibility to pollution, the Phantom light problem, the longer operating time, especially when exposed to vibration Locations, the improved switching stability, etc. play in the area of traffic signs and traffic signals play a particularly large role.
  • Fluorescent flat spotlights are.
  • the exemplary embodiment also relates to this. It is also important to use it as a motor vehicle lamp, e.g. B. Brake light, or direction indicator, which is also built around a vehicle corner and can be designed curved. In all of these cases, like Generally with signal lamps, it is particularly advantageous to use the frequently standardized Color, more precisely the color locus, already through the right phosphor or To be able to set fluorescent mixture selection. There are no only particularly good technical possibilities for the exact setting of the Color locations, but the conventional color filter technology is often unnecessary.
  • a round signal lamp 1 is drawn for a traffic light.
  • the sectional view shows the discharge volume within the smallest Circle 2.
  • These are drawn as small round dots.
  • the area between the smallest circle 2 and the middle one Circle 4 contrasts the lateral sealing of the discharge volume represents the outside world.
  • the outer circle 5 is the outer edge of the discharge volume limit upwards and downwards (in the perspective of the figure) Glass panes 6 and 7. These glass panes are shown in FIG Section shown.
  • the diameters are of the three circles 2.4 and 5 200, 220 and 240 mm.
  • Figure 2 shows a section in a direction perpendicular to Figure 1.
  • An Xe discharge fill is enclosed between the two glass plates 6 and 7.
  • Typical thicknesses for the glass plates are 2.5 mm and for the gas filling 8 about 5 mm.
  • Ag electrodes 9 are first drawn in cross section on the lower glass plate 7, the geometry of which is described in more detail with reference to FIG. 3.
  • a glass solder layer 10, which forms the dielectric of the dielectric barrier discharge, is located on the electrodes 9.
  • a reflector layer 11 made of Al 2 O 3 or TiO 2 for the diffuse reflection of the light generated in the lamp 1.
  • a phosphor layer 12 for generating light is located above the reflector layer 11. The same phosphor layer 12 is also located on the lower side of the glass plate 6 shown in the illustration.
  • phosphor layers are optimized for the respective application, in particular the desired color location.
  • preferred luminescent materials or luminescent material combinations are contained in the application of the same applicant from the same day with the title, in terms of its disclosure content: Signal lamp and fluorescent lights ".
  • a diffuser is located above the glass plate 6 and the optical color filter 13 14, that generated by the phosphor layers 12 and by the reflector layer 11 reflects light so diffusely that the one shown in FIG Support points in the luminous appearance of the signal lamp only are weakly recognizable.
  • the electrodes and layers 9-12 applied to the glass plates 6 and 7 can be produced particularly easily using the screen printing process.
  • the screen printing process is u. a. advantageous for structuring the electrodes. For the sake of simplicity, it is also used for the other layers.
  • luminance intensifying foils 15 and 16 crossed with their longitudinal prism axes.
  • luminance intensifying foils are prism foils which, through refraction of the light on the prism surfaces, cause the radiation cone of the light to narrow in the plane perpendicular to the prism longitudinal axis.
  • An example of this are those commercially available from the manufacturer 3M Brightness Enhancement "films.
  • the angle of attack of the prisms can be optimized in order to align the emitted light to the required extent.
  • the signal area is the luminous area on the upper luminance enhancement film 16.
  • the signal function is reduced the red, yellow or green signal lamp 1.
  • the signal area is corresponding in the sense of claim 1 Boundary surface of the discharge vessel, the upper glass plate 6. From the Interposition of the different optical layers apart, correspond these areas and are congruent.
  • FIG. 3 shows a top view comparable to FIG. 1, but only the geometry of the electrodes 9, which cannot be seen in FIG. 1, on the lower one Glass plate 7 is located.
  • At this comb-like geometry are those shown on the left in the figure Anodes 9a in pairs, while those shown on the right Cathodes 9k each lie individually between adjacent pairs of anodes.
  • the cathodes 9k regularly alternate on both sides along their length arranged small projections 17 on the spatial fixing each serve a single discharge structure.
  • This electrode structure reference is made to the application DE 196 36 965.7, the disclosure of which is included here.
  • the next distance between two distances is in this embodiment 5 mm or between equilateral Projections 10 mm.
  • the area of limitation of the anode and cathode crests 9a or 9k corresponds to the inner circle 2 already mentioned in FIG. 1 Electrodes are on the left and right sides of the figure, respectively merged into a common anode or cathode connection, that on the outer periphery of the in Figure 1 as the outer edge of the glass plates introduced outer circle 5 is. These each circle segments over the Longitudinal extension of the inner circle 2 representing common connections are, in Figure 3 below, to an anode connection or to a cathode connection led out.
  • FIG 4 finally illustrates in a schematic view how three the previously described signal lamps 1 are combined to form a traffic light are.
  • a very flat housing 18 are used, the rest has the usual high rectangular shape.
  • the conventional ones Traffic lights with light bulbs used elements such as diffusers, Umbrellas and parabolic mirrors can be omitted. Nevertheless the advantages of the invention already described are achieved, in particular the phantom light effect no longer occurs because there is no specular reflector is present that could reflect the obliquely arriving sunlight.
  • Such a traffic light 19 could be of a very simple and easy design Stand are attached, but also by the low weight can be easily hung on ropes and offers due to overall the significant simplifications in weight and volume and the large Freedom for the housing 18 multiple uses.
  • the signal lamp shown in FIGS. 1-3 can also be seen as a circular case red taillight or circular yellow direction indicator one Introduce car.
  • the lamp can also be curved around a corner of the vehicle be. This can be particularly the case with rear, brake light or direction indicator lamps be advantageous, which is also from the side of the vehicle can be recognized by other road users. Since the invention the construction of particularly flat motor vehicle lamps enables is such a tour around a motor vehicle corner without this conventionally predetermined considerable depth in the body possible inside.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Traffic Control Systems (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP97122798A 1997-12-23 1997-12-23 Lampe plate à décharge à barrière diélectrique Withdrawn EP0926704A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP97122798A EP0926704A1 (fr) 1997-12-23 1997-12-23 Lampe plate à décharge à barrière diélectrique
HU0001317A HUP0001317A3 (en) 1997-12-23 1998-12-11 Flat signalling lamp with dielectrically impeded discharge
JP53445799A JP2001513256A (ja) 1997-12-23 1998-12-11 誘電体妨害放電を有する平面信号ランプ
EP98965815A EP0976144A1 (fr) 1997-12-23 1998-12-11 Lampe de signalisation plate a decharge entravee dielectriquement
PCT/EP1998/008104 WO1999034410A1 (fr) 1997-12-23 1998-12-11 Lampe de signalisation plate a decharge entravee dielectriquement
US09/367,539 US6348760B1 (en) 1997-12-23 1998-12-11 Flat signaling lamp with dielectrically impeded discharge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP97122798A EP0926704A1 (fr) 1997-12-23 1997-12-23 Lampe plate à décharge à barrière diélectrique

Publications (1)

Publication Number Publication Date
EP0926704A1 true EP0926704A1 (fr) 1999-06-30

Family

ID=8227873

Family Applications (2)

Application Number Title Priority Date Filing Date
EP97122798A Withdrawn EP0926704A1 (fr) 1997-12-23 1997-12-23 Lampe plate à décharge à barrière diélectrique
EP98965815A Withdrawn EP0976144A1 (fr) 1997-12-23 1998-12-11 Lampe de signalisation plate a decharge entravee dielectriquement

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP98965815A Withdrawn EP0976144A1 (fr) 1997-12-23 1998-12-11 Lampe de signalisation plate a decharge entravee dielectriquement

Country Status (5)

Country Link
US (1) US6348760B1 (fr)
EP (2) EP0926704A1 (fr)
JP (1) JP2001513256A (fr)
HU (1) HUP0001317A3 (fr)
WO (1) WO1999034410A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6380669B1 (en) 1997-12-23 2002-04-30 Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh Signaling lamp with phosphor excitation in the VUV range and having specified phosphor mixtures
US6483255B1 (en) 1997-12-23 2002-11-19 Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh Gas discharge lamp with separately operating electrode groups
EP1589563A2 (fr) * 2004-04-23 2005-10-26 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe décharge à barrière diélectrique avec électrodes externes et système d'illumination utilisant une telle lampe

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10214156A1 (de) * 2002-03-28 2003-10-09 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Entladungslampe für dielektrisch behinderte Entladungen mit gewellter Deckenplattenstruktur

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5479071A (en) * 1993-05-03 1995-12-26 Flat Candle Company Flat form device for creating illuminated patterns
DE19526211A1 (de) * 1995-07-18 1997-01-23 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Verfahren zum Betreiben von Entladungslampen bzw. -strahler
EP0766286A1 (fr) * 1991-05-31 1997-04-02 Mitsubishi Denki Kabushiki Kaisha Lampe à décharge et procédé de réalisation

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5777431A (en) * 1994-08-17 1998-07-07 Matsushita Electric Works R&D Lab. Substantially flat compact fluorescent lamp
US6114809A (en) * 1998-02-02 2000-09-05 Winsor Corporation Planar fluorescent lamp with starter and heater circuit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0766286A1 (fr) * 1991-05-31 1997-04-02 Mitsubishi Denki Kabushiki Kaisha Lampe à décharge et procédé de réalisation
US5479071A (en) * 1993-05-03 1995-12-26 Flat Candle Company Flat form device for creating illuminated patterns
DE19526211A1 (de) * 1995-07-18 1997-01-23 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Verfahren zum Betreiben von Entladungslampen bzw. -strahler

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6380669B1 (en) 1997-12-23 2002-04-30 Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh Signaling lamp with phosphor excitation in the VUV range and having specified phosphor mixtures
US6483255B1 (en) 1997-12-23 2002-11-19 Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh Gas discharge lamp with separately operating electrode groups
EP1589563A2 (fr) * 2004-04-23 2005-10-26 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe décharge à barrière diélectrique avec électrodes externes et système d'illumination utilisant une telle lampe
EP1589563A3 (fr) * 2004-04-23 2007-12-26 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe décharge à barrière diélectrique avec électrodes externes et système d'illumination utilisant une telle lampe

Also Published As

Publication number Publication date
US6348760B1 (en) 2002-02-19
EP0976144A1 (fr) 2000-02-02
HUP0001317A3 (en) 2003-01-28
WO1999034410A1 (fr) 1999-07-08
JP2001513256A (ja) 2001-08-28
HUP0001317A2 (hu) 2000-09-28

Similar Documents

Publication Publication Date Title
DE69418499T2 (de) Hintergrundbeleuchtungseinrichtung
WO2009049824A1 (fr) Lampe led à diffuseur
EP0191264B2 (fr) Dispositif anti-éblouissant pour appareils d'éclairage de grande dimension
WO1999040364A1 (fr) Systeme d'eclairage
DE29516658U1 (de) Signalsystem
EP0533301A1 (fr) Signe indicatrice illuminée par derrière
DE69411647T2 (de) Leuchte
EP0741908B1 (fr) Lampe a decharge a halogenure de metal utilisee a des fins de projection
DE4313017A1 (de) Flächenförmige Kompakt-Leuchtstofflampe
EP1589563A2 (fr) Lampe décharge à barrière diélectrique avec électrodes externes et système d'illumination utilisant une telle lampe
DE1201275B (de) Scheinwerfer zum Ausleuchten einer recht-winkligen Flaeche
EP0926704A1 (fr) Lampe plate à décharge à barrière diélectrique
EP1050067B1 (fr) Lampe a incandescence electrique dotee d'une couche a reflexion infrarouge
DE3140839A1 (de) Flaechenfoermige quecksilberdampf-niederdruckentladungslampe
DE602004005872T2 (de) Beleuchtung und methode zur beleuchtung
EP0496921B1 (fr) Lampe
WO2000071928A1 (fr) Dispositif d'eclairage
DE69508497T2 (de) Kompakte Leuchtstofflampe
DE102009018840A1 (de) Plasmalampe
EP0253916A1 (fr) Lampe fluorescente à ampoule auxiliaire
EP0034744B1 (fr) Dispositif d'éclairage pour indicateurs
WO2011107479A1 (fr) Luminaire présentant des éléments de directivité de la lumière
DE3008773C2 (de) Nebelschlußleuchte für Kraftfahrzeuge
EP0987489A1 (fr) Signe indicatrice, illuminée par derrière
CH690247A5 (de) Leuchtkörperaufbau.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

AKX Designation fees paid
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19991231

REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566