EP0334208B1 - Lampe compacte à réflecteur - Google Patents

Lampe compacte à réflecteur Download PDF

Info

Publication number
EP0334208B1
EP0334208B1 EP89104709A EP89104709A EP0334208B1 EP 0334208 B1 EP0334208 B1 EP 0334208B1 EP 89104709 A EP89104709 A EP 89104709A EP 89104709 A EP89104709 A EP 89104709A EP 0334208 B1 EP0334208 B1 EP 0334208B1
Authority
EP
European Patent Office
Prior art keywords
reflector
lamp according
tube
reflector lamp
discharge vessel
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.)
Expired - Lifetime
Application number
EP89104709A
Other languages
German (de)
English (en)
Other versions
EP0334208A2 (fr
EP0334208A3 (en
Inventor
Jürgen Dr. Heider
Manfred Gurel
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
Publication of EP0334208A2 publication Critical patent/EP0334208A2/fr
Publication of EP0334208A3 publication Critical patent/EP0334208A3/de
Application granted granted Critical
Publication of EP0334208B1 publication Critical patent/EP0334208B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/16—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using sheets without apertures, e.g. fixed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/0005—Fastening of light sources or lamp holders of sources having contact pins, wires or blades, e.g. pinch sealed lamp
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V3/00—Globes; Bowls; Cover glasses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/40—Lighting for industrial, commercial, recreational or military use
    • F21W2131/406—Lighting for industrial, commercial, recreational or military use for theatres, stages or film studios

Definitions

  • the invention is based on a compact reflector lamp with a discharge vessel squeezed on one side according to the preamble of claim 1.
  • Such a lamp with metal halide filling is known from DE-OS 29 24 463. It is a high-power lamp (200 W) for projection purposes, the reflector diameter of which is of the order of 60 mm.
  • the lamp fill must be chosen so that "white” light is generated. This means a color temperature on the order of approximately 5000 K (cf. e.g. also EP-A 81 104 937).
  • color temperature is a function of lamp performance and heat balance.
  • the color impression of a lamp results from the superposition of the mercury emission lines and the emission lines of the added metal halides. The latter depend sensitively on the vapor density in the discharge vessel.
  • a filling with a low vapor density of the metal halides is sufficient for a high color temperature, since their emission is to a considerable extent in the long-wave range of the visible spectrum and, at a high color temperature, the focus of the emission spectrum of the filling is more in the short-wave range.
  • a color temperature that is significantly lower than that of projection lamps is desirable. It should be around 3500 K. With regard to the filling, this corresponds to a comparatively high vapor density of the metal halides, corresponding to an increased proportion of the long-wave radiation in the emission spectrum.
  • DE-OS 28 40 771 In order to be able to realize reflector lamps with metal halide filling for the purposes of room lighting, another, but much more complex solution has been proposed (DE-OS 28 40 771). It is a two-sided squeezed discharge vessel, which is arranged axially in an outer bulb shaped as a reflector. The thermal insulation achieved in this way is additionally reinforced by an open cylindrical tube which surrounds the discharge vessel within the outer bulb and which is supported by a complicated frame structure. This structure is technically very complex and therefore associated with high costs. The lamp also has a high weight and a large installation depth.
  • the object of the present invention is to provide a generic reflector lamp with simple means, the color temperature of which is so low that it can be used for room lighting. At the same time, this lamp should have a simple structure and a small installation depth.
  • the tube surrounding the discharge vessel acts as a heat accumulator, which prevents convection. Its particularly high effectiveness is based on the fact that both ends of the tube are closed. At the base end, this is achieved by resting on the reflector base, at the end remote from the base either by a special end piece that simultaneously forms the cap of a grip cap (DE-GM 83 10 715) or by the end remote from the base being shaped into a dome. Furthermore, the thermal insulation can be improved by means of a cover pane and / or by intermittent layers. A particularly high luminous efficiency can be achieved when using a facet reflector.
  • Two electrode shafts 4 are parallel to the lamp axis in the pinch 3 of the discharge vessel Molybdenum foils 5 melted down vacuum-tight.
  • the electrode tips 6 are angled transversely to the lamp axis.
  • the inner volume of the discharge vessel 1 is filled with mercury and additions of halides of Na, Sn and Tl. Ar serves as the ignition gas.
  • the lamp current is approx. 0.5 - 1.0 amperes.
  • External power supply lines 7 are connected to the molybdenum foils 5.
  • the apex of the reflector 2 there is a circular opening 8, which covers a base stone 9 made of temperature-resistant material, for example ceramic, placed on the back (DE-GM 83 10 715).
  • the base stone 9, the raised central piece 10 of which passes through the opening 8, is essentially cuboid.
  • the center piece 10 is equipped with a central opening 10 'for carrying out the power supply lines 7.
  • the base 9 is adapted with its bearing surface to the course of the reflector curvature from the outside and has four slots (not visible) which are slid over four tabs (not visible) are, which are molded onto the reflector in the apex region.
  • the protruding tab ends are twisted to fasten the base stone 9.
  • the power supply lines 7 of the lamp are held by solid contact lugs 11 which are riveted to the base stone 9 on the back. They protrude into the central rectangular opening 10 'of the base stone and there have eyelets 12 for contacting the power supply lines 7.
  • the angled ends 13 of the contact lugs 11 are shaped into flat plugs, which enable connection to known socket systems. Alternatively, a connection via clamping screws 13 'located on the contact lugs is possible.
  • the discharge vessel is closely surrounded by a cylindrical tube 14 made of tempered glass. It is coated with a known coating of indium and tin oxide (ITO layer), which is transparent to visible radiation, but reflects the heat radiation.
  • ITO layer indium and tin oxide
  • the end 15 of the tube remote from the base is shaped into a dome which is mirrored and thus serves to shield the direct radiation.
  • the base end 16 of the tube is open. It lies along the apex opening 8 on the inner surface of the reflector 2 and is fastened to the rounded flank of the center piece 10 of the base stone protruding through the apex opening by means of cement.
  • the light exit opening 17 of the reflector is provided with a cover plate 18.
  • the pitot tube 14 lies with its tip 15 directly on the cover plate 18. At the base end 16 of the pitot tube 14 presses a resilient metal ring 16a (leaf spring or spring ring), which is supported on the reflector base, the pitot tube 14 against the cover plate 18.
  • the center piece 10 'of the base stone is for better guidance of the pitot tube 14 to the pinch 3 of Lamp raised.
  • FIG. 2 Another exemplary embodiment is shown in FIG. 2.
  • the structure of the reflector lamp is essentially the same as in FIG. 1, the same features being designated by the same reference numbers.
  • the cylindrical pitot tube 19 is made of quartz glass and has no additional coating.
  • the base-side end 20 lies only on the inner surface of the reflector.
  • the reflector is with a handle panel 21 made of high temperature resistant plastic.
  • the handle panel 21 consists of a piece of flack 22 which spans over the light exit opening of the reflector and is attached to two opposite slots in the reflector by means of tabs 23 and brackets 23 '.
  • the flat piece 22 is equipped in the center with a hemispherical dome 24 which shields the direct radiation from the lamp.
  • An annular bead 25 with a slot runs around the inside of the spherical cap and is axially aligned. In this slot, the base distal end 26 of the pitot tube 19 is fitted so that the pitot tube is mechanically fixed in a simple manner between the reflector base and the cap 24.
  • the handle panel 27 is made of a metallic stamped part (made of anodized aluminum).
  • the simple hemispherical dome 28 is dimensioned such that its outer diameter is adapted to the inner diameter of the pitot tube 29.
  • the end 30 of the pitot tube remote from the base rests on the outside of the calotte 28.
  • a compressible ring 32 (made of plastic or rubber-like material) or a metallic leaf spring or a spring ring is fitted between the pitot tube end 30 and the flat piece 31 of the grip panel. It is used to seal and compensate for thermal expansion.
  • the pitot tube 29 can be provided with an ITO layer, depending on which color temperature is desired (see table).
  • a simple metal oxide layer a combination of several layers with alternating high and low refractive index (interference filter) can be used. For example SiO2 and Ta2O5 layers are used.
  • the table below shows the influence of the pitot tube on the operating data of the reflector lamp R. It shows the color index Ra, the color temperature Tn (in K) and the luminous efficacy LA (lm / W) for a 35 W lamp. The table shows that a color improvement of - 500 K and more can be achieved with the pitot tube. Depending on which color temperature is desired, a coated pitot tube (Tn ⁇ 3500 K) is used or an uncoated pitot tube (Tn ⁇ 4000 K) is sufficient. With other fillings, lower color temperatures can also be achieved.
  • a pitot tube also allows further properties of the reflector lamps to be optimized. When using a tube made of tempered glass, especially the UV emission of the lamp is prevented.
  • the coating of the pitot tube can be chosen so that additional color effects are achieved (targeted change of light color).
  • the pitot tube offers the additional advantage of acting as protection in the event of an explosion of the discharge vessel.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)

Claims (10)

  1. Lampe à réflecteur, constituée
    - d'une enceinte (1) de décharge, pincée d'un côté et ayant deux électrodes et un remplissage constitué de gaz noble, de mercure et d'halogénures métalliques,
    - un culot (9),
    - deux entrées (7) de courant, qui sont scellées de manière étanche au vide dans l'enceinte (1) de décharge dans la région du pincement (3) et qui relient, de manière conductrice de l'électricité, les électrodes à des éléments (11) de contact du culot,
    - un réflecteur (2) ayant au sommet une ouverture (8), dans laquelle l'enceinte (1) de décharge est fixée, et ayant un orifice (17) de sortie de la lumière,
    caractérisée en ce qu'un agencement prenant peu de place est obtenu par le fait que l'enceinte (1) de décharge est entourée étroitement d'un tube (14,19,29) transparent, distinct, qui est dirigé suivant l'axe de la lampe et dont l'extrémité (16, 20) du côté du culot s'applique au réflecteur (20), tandis que l'extrémité (15,26,30) éloignée du culot est munie d'une pièce de fermeture.
  2. Lampe à réflecteur suivant la revendication 1, caractérisée en ce que le tube (14,19,29) est en verre dur.
  3. Lampe à réflecteur suivant la revendication 1, caractérisée en ce que le tube (14,19,29) est en verre au quartz.
  4. Lampe à réflecteur suivant la revendication 1, caractérisée en ce que la pièce de fermeture est formée d'une coupelle formée sur le tube (14).
  5. Lampe à réflecteur suivant la revendication 4, caractérisée en ce que l'orifice (17) du réflecteur (2) par lequel sort la lumière est muni d'un disque (18) de recouvrement.
  6. Lampe à réflecteur suivant la revendication 4, caractérisée en ce que la coupelle est métallisée.
  7. Lampe à réflecteur suivant la revendication 1, caractérisée en ce que la pièce de fermeture est formée d'une calotte (24; 28) fixée au réflecteur (2) au moyen d'une pièce (22; 31) plate, qui s'étend à la manière d'une arche de pont sur l'orifice du réflecteur (12) par lequel sort la lumière.
  8. Lampe à réflecteur suivant la revendication 1, caractérisée en ce que le tube (14; 19; 29) est muni de couches d'oxyde métallique.
  9. Lampe à réflecteur suivant la revendication 1, caractérisée en ce que le réflecteur (2) est agencé en réflecteur parabolique en aluminium, dont le contour est constitué d'une multiplicité de facettes.
  10. Lampe à réflecteur suivant la revendication 1, caractérisée en ce qu'un moyen d'étanchéité (16a, 32) susceptible d'être comprimé et expansé élastiquement s'applique au moins à l'une des extrémités du tube.
EP89104709A 1988-03-22 1989-03-16 Lampe compacte à réflecteur Expired - Lifetime EP0334208B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8803881U DE8803881U1 (de) 1988-03-22 1988-03-22 Kompakte Reflektorlampe
DE8803881U 1988-03-22

Publications (3)

Publication Number Publication Date
EP0334208A2 EP0334208A2 (fr) 1989-09-27
EP0334208A3 EP0334208A3 (en) 1990-05-16
EP0334208B1 true EP0334208B1 (fr) 1994-06-01

Family

ID=6822178

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89104709A Expired - Lifetime EP0334208B1 (fr) 1988-03-22 1989-03-16 Lampe compacte à réflecteur

Country Status (5)

Country Link
US (1) US4935660A (fr)
EP (1) EP0334208B1 (fr)
JP (1) JPH0538531Y2 (fr)
CA (1) CA1309451C (fr)
DE (2) DE8803881U1 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4019587A1 (de) * 1990-06-20 1992-01-02 Bosch Gmbh Robert Scheinwerfer fuer kraftfahrzeuge
US5535111A (en) * 1994-04-29 1996-07-09 Thomas & Betts Corporation Quartz halogen flood light assembly having improved lamp and reflector
US5691606A (en) * 1994-09-30 1997-11-25 Pacific Scientific Company Ballast circuit for fluorescent lamp
US5596247A (en) * 1994-10-03 1997-01-21 Pacific Scientific Company Compact dimmable fluorescent lamps with central dimming ring
EP0802561B1 (fr) * 1996-04-19 2000-07-19 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe halogène
US6212004B1 (en) 1996-05-10 2001-04-03 Applied Coatings, Inc. Reflector with directional control of visible and infra-red radiation
DE19844548A1 (de) * 1998-09-29 2000-03-30 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Entladungslampe und Beleuchtungssystem mit einer Entladungslampe
US6536918B1 (en) * 2000-08-23 2003-03-25 General Electric Company Lighting system for generating pre-determined beam-pattern
DE10251960A1 (de) * 2002-11-08 2004-05-19 Philips Intellectual Property & Standards Gmbh Reflektorlampe
AU2003274624A1 (en) * 2002-11-21 2004-06-15 Koninklijke Philips Electronics N.V. Lighting unit
JP2008519407A (ja) * 2004-11-02 2008-06-05 オプトロニクス エイピーエス 少なくとも２つの光学系を有する点灯装置
DE102005005262A1 (de) * 2005-02-04 2006-08-10 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Reflektorbehaftete Lichteinheit
DE102006006063A1 (de) * 2006-02-09 2007-08-16 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Reflektorbehaftete Lichteinheit
US7923908B2 (en) * 2007-09-27 2011-04-12 Osram Sylvania Inc. Metal halide reflector lamp with beam color homogenizer
JP5213253B2 (ja) * 2009-01-20 2013-06-19 パナソニック株式会社 照明器具
US10932323B2 (en) 2015-08-03 2021-02-23 Alta Devices, Inc. Reflector and susceptor assembly for chemical vapor deposition reactor

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3931536A (en) * 1974-07-15 1976-01-06 Gte Sylvania Incorporated Efficiency arc discharge lamp
NL178107C (nl) * 1977-12-23 1986-01-16 Philips Nv Hogedrukontladingslamp.
GB2023339A (en) * 1978-06-19 1979-12-28 Thorn Electrical Ind Ltd Light source for Super 8 mm cine projector
DE2840771A1 (de) * 1978-09-19 1980-03-27 Patra Patent Treuhand Hochdruckentladungslampe mit metallhalogeniden
DE3232207A1 (de) * 1982-08-30 1984-03-08 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München Hochdruckentladungslampe kleiner leistung
DE8310715U1 (de) * 1983-04-12 1983-12-22 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München Reflektorlampe
JPH0773001B2 (ja) * 1985-10-18 1995-08-02 東芝ライテック株式会社 投光光源装置
DE3543087A1 (de) * 1985-12-05 1987-06-19 Stiers Unterhaltungselektronik Lichtstrahler

Also Published As

Publication number Publication date
JPH01145003U (fr) 1989-10-05
DE8803881U1 (de) 1988-05-11
EP0334208A2 (fr) 1989-09-27
DE58907732D1 (de) 1994-07-07
EP0334208A3 (en) 1990-05-16
JPH0538531Y2 (fr) 1993-09-29
US4935660A (en) 1990-06-19
CA1309451C (fr) 1992-10-27

Similar Documents

Publication Publication Date Title
EP0334208B1 (fr) Lampe compacte à réflecteur
DE3232207C2 (fr)
DE69820992T2 (de) Hochdruckentladungslampe
EP0453893B1 (fr) Lampe à décharge à haute pression
DE2840031C2 (fr)
EP0839381B1 (fr) Lampe a reflecteur
DE2854223A1 (de) Hochdruckentladungslampe
DE3205401A1 (de) Hochdruckentladungslampe
EP0453652A2 (fr) Lampe à décharge à haute pression
EP0237647A1 (fr) Lampe à décharge pour véhicule
EP0492205B1 (fr) Lampe à décharge à haute pression à halogénure métallique
DD272366A5 (de) Elektrodenlose niederdruckentladungslampe
EP0741908B1 (fr) Lampe a decharge a halogenure de metal utilisee a des fins de projection
EP0456907B1 (fr) Lampe à décharge à haute pression
EP0276888A2 (fr) Lampe à décharge à gaz
EP0477668B1 (fr) Lampe à décharge aux halogénures métalliques à haute pression
EP0121819B1 (fr) Lampe de réflecteur
DE3233966A1 (de) Entladungslampe hoher intensitaet mit einer einrichtung zum reflektieren von infrarot zur verbesserung der wirksamkeit
DE3037223C2 (fr)
DE4334074A1 (de) Metallhalogenidentladungslampe
DE2943813C2 (fr)
DE1489406B2 (de) Hochdruck-quecksilberdampfentladungslampe
DE3631510A1 (de) Beleuchtungskoerper, insbesondere fuer kommunale und industrielle anwendungen
EP0101013A2 (fr) Lampe fluorescente compacte à culot unique
DE102010061877A1 (de) Elektrische Entladungslampe

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: A2

Designated state(s): DE FR GB IT

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE FR GB IT

17P Request for examination filed

Effective date: 19900607

17Q First examination report despatched

Effective date: 19930422

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

REF Corresponds to:

Ref document number: 58907732

Country of ref document: DE

Date of ref document: 19940707

ITF It: translation for a ep patent filed

Owner name: STUDIO JAUMANN

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19940811

ET Fr: translation filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19950213

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19950323

Year of fee payment: 7

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19950518

Year of fee payment: 7

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19960316

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19960316

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19961129

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19961203

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050316