EP0774619B1 - Medical lamp with a projector to be assembled - Google Patents

Medical lamp with a projector to be assembled Download PDF

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Publication number
EP0774619B1
EP0774619B1 EP96117042A EP96117042A EP0774619B1 EP 0774619 B1 EP0774619 B1 EP 0774619B1 EP 96117042 A EP96117042 A EP 96117042A EP 96117042 A EP96117042 A EP 96117042A EP 0774619 B1 EP0774619 B1 EP 0774619B1
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EP
European Patent Office
Prior art keywords
lamp
flange
reflector
base
ring
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
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EP96117042A
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German (de)
French (fr)
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EP0774619A1 (en
Inventor
Uwe Gampe
Jörg Dr. Hartge
Rudolf Dr. Marka
Stefan Greif
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Heraeus Medical GmbH
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Heraeus Medical GmbH
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Publication of EP0774619A1 publication Critical patent/EP0774619A1/en
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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
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/006—Fastening of light sources or lamp holders of point-like light sources, e.g. incandescent or halogen lamps, with screw-threaded or bayonet base
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/19—Attachment of light sources or lamp holders
    • 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
    • F21W2131/20—Lighting for medical use
    • F21W2131/205—Lighting for medical use for operating theatres

Definitions

  • the invention relates to a medical lamp with at least one lamp and one Reflector composite radiator unit, the reflector made of metal and has a metallic or metallized surface, an opening with a circumferential, tubular flange for using at least one lamp with an opening cross-section adapted lamp base is provided and the base at least partially abuts the inside of the ring flange and at the end facing away from the light exit side the lamp of the base has an extended area which is at least partially on the The outer edge of the area of the ring flange facing away from the light exit rests.
  • the incandescent lamp is provided with a base which has substantially axially parallel guide surfaces; the guide surfaces of the base match the corresponding guide surfaces of the reflector immediately together; the base edge is provided with a stop surface, the distance up to the light center of the incandescent lamp is just as large as the distance between the assigned ones Stop surface of the reflector up to the reflector focal point; this will get the light bulb with its center of gravity automatically when pushed into the focal point of the reflector.
  • the reflector neck opening in the shape of a has a truncated cone that extends outwards.
  • the lamp base has one in the opening suitable conical surface on and on its side facing away from the reflector, it contains a groove for a clamp with which the base is detachably fastened in the reflector neck.
  • the socketed one Halogen light bulb is exchangeably attached to a plate by means of the clamping bracket.
  • From DE-B 10 61 900 is also a device for holding a fixed to the socket connected light bulb in a reflector known, two elastic components, e.g. Wire springs, which are rotatably mounted in tabs that are firmly connected to the reflector neck, can take two positions, the opening in a so-called opening position of the reflector so that the light bulb can be inserted or replaced can and in a so-called holding position, in which the springs resiliently on the version of the press the bulb inserted, lock the bulb.
  • two elastic components e.g. Wire springs, which are rotatably mounted in tabs that are firmly connected to the reflector neck, can take two positions, the opening in a so-called opening position of the reflector so that the light bulb can be inserted or replaced can and in a so-called holding position, in which the springs resiliently on the version of the press the bulb inserted, lock the bulb.
  • Such a lamp is also less suitable as a medical lamp, since it has no reserve lighting function in the event of failure of their single light bulb.
  • US-A 46 46 205 is a medical examination lamp with a parabolic Known reflector, which has a lamp holder for receiving an incandescent lamp. Also here only a single light bulb is provided for operating the medical lamp.
  • a cold light mirror lamp is known from DE-GM 89 12 262, the reflector has an opening for a lamp insert which, for reasons of exact adjustment, has a lamp firmly anchored to the insert with respect to the reflector.
  • the reflector Insert detachably connected to a socket arranged outside the reflector, wherein a precise connection between insert, reflector and socket Positioning of the light bulb is reached.
  • the object of the invention is to minimize storage costs to create a few components built medical lamp, on the one hand exact adjustment of the helix position within the reflector guaranteed, on the other hand allows the lamp to be changed without special technical knowledge; doing so Always an exact adjustment of the helix in the radial and axial direction of the reflector axis be achieved.
  • the flange essentially one has an oval or elliptical cross-section, the enlarged area at least a bushing for the electrical supply line and at least one pressing surface for Has support of a spring clip under pressure.
  • the simple and robust construction proves to be particularly advantageous, whereby the special Design of the lamp due to an undesirable contact with the bulb surface of the lamp base that can be used as a handle part can be avoided. As beneficial it proves that the lamp is prevented from rotating about its longitudinal axis.
  • the base has a cylindrical area to which the expanded area connects in the form of a plate flange.
  • the reflector is made of aluminum, the good ones Deformation properties in the production of the blank, and the ease of coating of the reflective surface prove to be advantageous.
  • As more heat-resistant and electrical Insulating material of the lamp base is preferably ceramic.
  • the flange is at least partially as a hollow cylinder educated.
  • the flange it is also possible for the flange to be essentially polygonal trained cross-section.
  • the cross section of the lateral surface is of the lamp base adapted to the cross section of the flange.
  • An additional lamp is advantageously used, the base of which is joined together the base of the first lamp forms a closed cross-sectional area, the outer contour of which is adapted to the inner contour of the flange.
  • the reflector 1 consists approximately of an ellipsoid of revolution, in the Focus area, which is shown schematically as zone 3 along the reflector axis 4 is the filament 5 of the lamp 6;
  • the reflective surface 2 has one Variety of groove-shaped flutes, or facets 8, as already in similar Form is known from the aforementioned US Patent 3,511,983; due to the facets 8 results a largely shadow-free and uniform illumination of the irradiated surgical field, or lighting field, since each facet covers almost the entire surgical or illuminating field.
  • the lamp lamp 6 or 6 'consisting of lamp bulb 7 and base 9 as to be replaced Lamp is along axis 4 in a circular opening 11 with a circumferential Inserted flange, the cylindrical part 10 of the base adjoining the piston 7 9 the lamp used against displacement in the radial direction and based on the additionally shown lamp 6 'recognizable plate flange 12 against axial displacement and Secures tilting.
  • the lamp 6 ′ is passed along the reflector axis 4 Opening 11 of the reflector inserted so that the cylindrical part 10 of the lamp from which the Opening 11 surrounding ring flange 13 against radial displacement and that on the outer edge of the ring flange 13 overlying plate flange 12 the lamp against axial displacement and tilting, an additional pressing element in the form of a bracket 14 is provided, which engages in a groove 17 on the back of the plate flange 12; by bracing by means of the pressure bracket to be attached to the outer flange 15 of the reflector 14 plate flange 12 is pressed against the ring flange 13, so that the lamp 6 is in an adjusted position.
  • a lamp 6 in the reflector 1 fails, the lamp 6 is moved along the reflector axis 4 pulled out of the reflector opening 11 in the rearward direction of the reflector and along a proper lamp as shown by lamp 6 ' the axis 4 replaced in opening 11 of the reflector; the cylindrical part 10 of the base 9 of the lamp 6 'in the opening 11 surrounded by a ring flange 13 along the axis 4 pushed in until plate flange 12 of lamp 6 on the outer edge of the ring flange comes to rest and the lamp by means of the cylindrical part 10 in a radial Direction and is locked in the axial direction by means of the plate flange 12; with the lock the helix position inside the reflector is also properly adjusted, since the Production of the lamp 6 of the bulb 7 with the filament 5 positioned relative to the base 9 that the later exact adjustment by simple exchange with subsequent locking the lamp 6 is guaranteed.
  • the lamp is used provided opening 11 carried out in an oval shape, wherein the surrounding the opening 11 Flange 13 also has an oval cross section; in this opening 11 are two, with their Lamps 6 ", 6" 'aligned parallel to one another in longitudinal axes can be used, whose bases 9 ", 9"' each form a half oval in cross-section, with both bases being in the inserted state add to an oval, the outer contour of the inner surface of the flange 13 without play is adapted; the oval is also shown schematically in FIG. 3b oval opening 11 within the reflector 1 provided with a plurality of facets 8 recognizable. A correspondingly adapted cross-sectional area is shown in FIGS.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Radiation-Therapy Devices (AREA)

Abstract

The lamp has at least one light source (6') enclosed by a compound metal reflector having a facetted surface with a central opening (11) surrounded by a flange (13) for reception of the light source. The light source has a glass envelope enclosing a filament extending along the optical axis (4) of the reflector, the socket having a cylindrical section (10) with a flange disc (12) abutting the flange around the reflector opening, for correct positioning of the light source.

Description

Die Erfindung betrifft eine medizinische Leuchte mit einer aus wenigstens einer Lampe und einem Reflektor zusammengesetzten Strahlereinheit, wobei der Reflektor aus Metall besteht und eine metallische oder metallisierte Oberfläche aufweist, wobei eine Öffnung mit umlaufendem, rohrförmigen Flansch zum Einsatz wenigstens einer Strahlerlampe mit einem dem Öffnungsquerschnitt angepassten Lampensockel vorgesehen ist und der Sockel wenigstens zum Teil an der Innenseite des Ring-Flansches anliegt und an dem der Lichtaustrittsseite abgewandten Ende der Lampe der Sockel einen erweiterten Bereich aufweist, der wenigstens zum Teil auf der Außenkante des dem Lichtaustritt abgewandten Bereichs des Ring-Flansches aufliegt.The invention relates to a medical lamp with at least one lamp and one Reflector composite radiator unit, the reflector made of metal and has a metallic or metallized surface, an opening with a circumferential, tubular flange for using at least one lamp with an opening cross-section adapted lamp base is provided and the base at least partially abuts the inside of the ring flange and at the end facing away from the light exit side the lamp of the base has an extended area which is at least partially on the The outer edge of the area of the ring flange facing away from the light exit rests.

Aus dem Gattungsgemässen Dokument DT 1 489 495 ist ein Präzisionsreflektor mit einschiebbarer Glühlampe bekannt, die durch einen flanschartigen Reflektoransatz in den Reflektor eingeführt wird, wobei die Glühlampe mit einem Sockel versehen ist, der im wesentlichen achsparallele Führungsflächen aufweist; die Führungsflächen des Sockels passen mit entsprechenden Führungsflächen des Reflektors unmittelbar zusammen; der Sockelrand ist mit einer Anschlagfläche versehen, deren Abstand bis zum Lichtschwerpunkt der Glühlampe genau so groß ist wie der Abstand der zugeordneten Anschlagfläche des Reflektors bis zum Reflektorbrennpunkt; hierdurch gelangt die Glühlampe mit ihrem Lichtschwerpunkt beim Einschieben automatisch in den Brennpunkt des Reflektors.From the generic document DT 1 489 495 a precision reflector with a retractable light bulb is known is inserted into the reflector through a flange-like reflector attachment, the incandescent lamp is provided with a base which has substantially axially parallel guide surfaces; the guide surfaces of the base match the corresponding guide surfaces of the reflector immediately together; the base edge is provided with a stop surface, the distance up to the light center of the incandescent lamp is just as large as the distance between the assigned ones Stop surface of the reflector up to the reflector focal point; this will get the light bulb with its center of gravity automatically when pushed into the focal point of the reflector.

Weiterhin ist aus der DE-A 14 72 529 eine aus einer gesockelten elektrischen Glühlampe und einem Reflektor bestehender Lichtwurfeinrichtung mit einer Halsöffnung im Reflektor zum Einführen der gesockelten Lampe bekannt, wobei die Reflektorhalsöffnung die Form eines sich nach außen erweitenden Kegelstumpfes hat. Dabei weist der Lampensockel eine in die Öffnung passende Kegelfläche auf und auf seiner dem Reflektor abgewandten Seite enthält er eine Rille für einen Spannbügel, mit dem der Sockel im Reflektorhals lösbar befestigt ist. Die gesockelte Halogenglühlampe ist dabei mittels des Spannbügels auswechselbar an einer Platte befestigt. Furthermore, from DE-A 14 72 529 one of a socketed electric light bulb and an existing reflector with a neck opening in the reflector for insertion the socketed lamp known, the reflector neck opening in the shape of a has a truncated cone that extends outwards. The lamp base has one in the opening suitable conical surface on and on its side facing away from the reflector, it contains a groove for a clamp with which the base is detachably fastened in the reflector neck. The socketed one Halogen light bulb is exchangeably attached to a plate by means of the clamping bracket.

Beim Einsatz einer solchen Leuchte in medizinischen Anwendungen, wäre allerdings der Ausfall der Halogenglühlampe problematisch, sofern keine weiteren medizinischen Leuchten zur Verfügung stehen.If such a luminaire were used in medical applications, however, it would be a failure the halogen incandescent lamp is problematic, provided that no other medical lights are used To be available.

Aus der DE-B 10 61 900 ist weiterhin eine Vorrichtung zur Halterung einer fest mit der Fassung verbundenen Glühlampe in einem Reflektor bekannt, wobei zwei elastische Bauelemente, z.B. Drahtfedern, die in fest mit dem Reflektorhals verbundenen Laschen drehbar gelagert sind, zwei Stellungen einnehmen können, wobei sie in einer sogenannten Öffnungsstellung die Öffnung des Reflektors so freigeben, dass die Glühlampe eingesetzt oder ausgetauscht werden kann und in einer sogenannten Haltestellung, in der die Federn elastisch auf die Fassung der in den Reflektor eingesetzten Glühlampe drücken, die Glühlampe arretieren.From DE-B 10 61 900 is also a device for holding a fixed to the socket connected light bulb in a reflector known, two elastic components, e.g. Wire springs, which are rotatably mounted in tabs that are firmly connected to the reflector neck, can take two positions, the opening in a so-called opening position of the reflector so that the light bulb can be inserted or replaced can and in a so-called holding position, in which the springs resiliently on the version of the press the bulb inserted, lock the bulb.

Auch eine solche Lampe ist als medizinische Leuchte weniger geeignet, da sie keinerlei Reserveleuchtfunktion bei Ausfall ihrer einzigen Glühlampe aufweist.Such a lamp is also less suitable as a medical lamp, since it has no reserve lighting function in the event of failure of their single light bulb.

Aus der US-A 46 46 205 ist eine medizinische Untersuchungsleuchte mit einem parabolischen Reflektor bekannt, welche eine Lampenfassung zur Aufnahme einer Glühlampe aufweist. Auch hier ist lediglich eine einzige Glühlampe zum Betrieb der medizinischen Leuchte vorgesehen.From US-A 46 46 205 is a medical examination lamp with a parabolic Known reflector, which has a lamp holder for receiving an incandescent lamp. Also here only a single light bulb is provided for operating the medical lamp.

Aus der US-PS 3,511,983 ist eine Beleuchtungsvorrichtung für zahntechnische, bzw. kieferchirurgische Anwendungen bekannt, die einen Reflektor in Form eines Rotationsellipsoiden aufweist, der entlang der Rotationsachse mit einer im Brennpunkt befindlichen Strahlerlampe versehen ist; die Reflektoroberfläche weist eine Vielzahl von polygonalen Kannelierungen auf, deren reflektierende Oberflächen als Teilbereich von Hohl-Zylindern ausgebildet sind. Als Lichtquelle dient eine Glühwendel, die entlang der Rotationsachse des Reflektors angeordnet ist, wobei die Glühwendel mit ihrer Mitte im Brennpunkt des Reflektors anzuordnen ist.From US Pat. No. 3,511,983 there is a lighting device for dental or jaw surgery Applications known, which has a reflector in the form of an ellipsoid of revolution, provided along the axis of rotation with a spotlight lamp located in the focal point is; the reflector surface has a large number of polygonal flutes, the reflective surfaces are formed as a partial area of hollow cylinders. As a light source serves a filament which is arranged along the axis of rotation of the reflector, the filament being arranged with its center in the focal point of the reflector.

Als problematisch erweist sich bei einem Glühlampenwechsel die Neueinjustierung der Glühwendel, welche in der Praxis mit hohem Zeitaufwand verbunden ist und nur von Fachpersonal durchgeführt werden kann.The readjustment of the filament turns out to be problematic when changing the light bulb, which is time-consuming in practice and only by specialist staff can be carried out.

Weiterhin ist aus dem DE-GM 89 12 262 eine Kaltlichtspiegel-Leuchte bekannt, deren Reflektor eine Öffnung für einen Lampeneinsatz aufweist, der aus Gründen einer exakten Justierung, bezüglich des Reflektors eine mit dem Einsatz fest verankerte Lampe aufweist. Zur Sicherung seiner exakten Position und zur Stromversorgung ist der in die Öffnung des Reflektors ragende Einsatz mit einer außerhalb des Reflektors angeordneten Fassung lösbar verbunden, wobei durch eine formschlüssige Verbindung zwischen Einsatz, Reflektor und Fassung eine exakte Positionierung der Glühlampe erreicht wird. Furthermore, a cold light mirror lamp is known from DE-GM 89 12 262, the reflector has an opening for a lamp insert which, for reasons of exact adjustment, has a lamp firmly anchored to the insert with respect to the reflector. To secure its exact position and for the power supply is that protruding into the opening of the reflector Insert detachably connected to a socket arranged outside the reflector, wherein a precise connection between insert, reflector and socket Positioning of the light bulb is reached.

Als problematisch erweist sich hier der verhältnismäßig aufwendige Aufbau mit Einsatz und Fassung; weiterhin ist bei Wechsel der Glühlampe diese stets nur über die nach vorn gerichtete Reflektoröffnung einsetzbar, während die Fassung nur über den rückwärtigen Teil des Reflektors zugänglich ist, so dass bei einem eventuellen Lampenwechsel ein erhöhter Montageaufwand auftritt.The comparatively complex structure with insert and proves to be problematic here version; furthermore, when changing the light bulb, it is always only directed towards the front Reflector opening can be used, while the frame only over the rear part of the reflector is accessible, so that an increased installation effort is required when changing the lamp occurs.

Die Erfindung stellt sich die Aufgabe, zur Minimierung von Bevorratungskosten eine aus möglichst wenigen Komponenten aufgebaute medizinische Leuchte zu schaffen, die einerseits eine exakte Justierung der Wendellage innerhalb des Reflektors gewährleistet, andererseits jedoch einen Wechsel der Lampe ohne besondere fachmännische Kenntnisse ermöglicht; dabei soll stets eine exakte Justierung der Wendel in radialer und axialer Richtung der Reflektorachse erzielt werden.The object of the invention is to minimize storage costs to create a few components built medical lamp, on the one hand exact adjustment of the helix position within the reflector guaranteed, on the other hand allows the lamp to be changed without special technical knowledge; doing so Always an exact adjustment of the helix in the radial and axial direction of the reflector axis be achieved.

Die Aufgabe wird erfindungsgemäß dadurch gelöst, dass der Flansch einen im Wesentlichen oval oder elliptisch ausgebildeten Querschnitt aufweist, wobei der erweiterte Bereich wenigstens eine Durchführung für die elektrische Zuleitung sowie wenigstens eine Pressfläche zur Auflage eines unter Federwirkung stehenden Anpressbügels aufweist.The object is achieved in that the flange essentially one has an oval or elliptical cross-section, the enlarged area at least a bushing for the electrical supply line and at least one pressing surface for Has support of a spring clip under pressure.

Als besonders vorteilhaft erweist sich der einfache und robuste Aufbau, wobei durch die besondere Ausgestaltung der Strahlerlampe eine unerwünschte Berührung der Kolbenoberfläche aufgrund des als Griffteil verwendbaren Lampensockels vermieden werden kann. Als vorteilhaft erweist es sich dabei, dass eine Verdrehung der Lampe um ihre Längsachse verhindert wird.The simple and robust construction proves to be particularly advantageous, whereby the special Design of the lamp due to an undesirable contact with the bulb surface of the lamp base that can be used as a handle part can be avoided. As beneficial it proves that the lamp is prevented from rotating about its longitudinal axis.

Weitere vorteilhafte Ausgestaltungen der medizinischen Leuchte nach Anspruch 1 sind in den Ansprüchen 2 bis 8 angegeben.Further advantageous embodiments of the medical lamp according to claim 1 are in the Claims 2 to 8 specified.

In einer vorteilhaften Ausgestaltung weist der Sockel einen zylindrisch ausgebildeten Bereich auf, an den sich der erweiterte Bereich in Form eines Teller-Flansches anschließt.In an advantageous embodiment, the base has a cylindrical area to which the expanded area connects in the form of a plate flange.

In einer bevorzugten Ausführungsform besteht der Reflektor aus Aluminium, wobei sich die guten Verformungseigenschaften bei der Herstellung des Rohlings, und die einfache Beschichtbarkeit der reflektierenden Oberfläche als vorteilhaft erweisen. Als wärmebeständiger und elektrisch isolierender Werkstoff des Lampensockels wird vorzugsweise Keramik eingesetzt.In a preferred embodiment, the reflector is made of aluminum, the good ones Deformation properties in the production of the blank, and the ease of coating of the reflective surface prove to be advantageous. As more heat-resistant and electrical Insulating material of the lamp base is preferably ceramic.

In einer vorteilhaften Ausführungsform ist der Flansch wenigstens zum Teil als Hohlzylinder ausgebildet. Es ist jedoch auch möglich, dass der Flansch einen im Wesentlichen polyogonartig ausgebildeten Querschnitt aufweist.In an advantageous embodiment, the flange is at least partially as a hollow cylinder educated. However, it is also possible for the flange to be essentially polygonal trained cross-section.

In einer weiteren vorteilhaften Ausgestaltung der Leuchte ist der Querschnitt der Mantelfläche des Lampensockels dem Querschnitt des Flansches angepasst. In a further advantageous embodiment of the lamp, the cross section of the lateral surface is of the lamp base adapted to the cross section of the flange.

Vorteilhafterweise wird eine zusätzliche Lampe eingesetzt, deren Sockel zusammengefügt mit dem Sockel der ersten Lampe eine geschlossene Querschnittsfläche bildet, wobei deren Auβenkontur an die Innenkontur des Flansches angepasst ist. Auf diese Weise wird in besonders einfacher Form eine Reservelampenfunktion ermöglicht, wie sich bei medizinischen Leuchten aus Sicherheitsgründen häufig gefordert wird.An additional lamp is advantageously used, the base of which is joined together the base of the first lamp forms a closed cross-sectional area, the outer contour of which is adapted to the inner contour of the flange. This way, in particular simple form enables a reserve lamp function, as is the case with medical lights is often required for security reasons.

Im folgenden ist der Gegenstand der Erfindung anhand der Figuren 1 bis 3d näher erläutert.

  • Figur 1 zeigt zur Erläuterung des prinzipiellen Aufbaus schematisch in einer perspektivischen Ansicht eine Vorderansicht des Reflektors mit eingesetzter Lampe zusammen mit der zum Einsatz bei Lampenwechsel vorbereiteten Lampe;
  • Figur 2 zeigt schematisch die Rückseite des Reflektors zusammen mit der zum Einsatz vorbereiteten Lampe.
  • Figur 3a zeigt einen Längsschnitt durch eine erfindungsgemäße Leuchte, wobei zwei Lampen mit zueinander paralleler Strahlungsachse innerhalb des Reflektors angeordnet sind;
  • Figur 3b zeigt in einer Draufsicht bruchstückhaft eine Hälfte des paraboloidförmigen Reflektors nach Figur 3a, wobei eine Vielzahl von Facetten in Form eines Rasters dargestellt sind;
  • Figur 3c zeigt die Kontaktflächen der Sockel zweier zueinander kongruenter Lampensockel, die gemäß Figur 3d eine geschlossene Querschnittsfläche beim Einsetzen in den Ringflansch des Reflektors bilden.
    • The subject matter of the invention is explained in more detail below with reference to FIGS. 1 to 3d.
  • FIG. 1 shows, for explanation of the basic structure, schematically in a perspective view a front view of the reflector with the lamp inserted together with the lamp prepared for use when changing the lamp;
  • Figure 2 shows schematically the back of the reflector together with the lamp prepared for use.
  • FIG. 3a shows a longitudinal section through a lamp according to the invention, two lamps with a radiation axis parallel to one another being arranged within the reflector;
  • FIG. 3b shows a top view in fragments of one half of the paraboloid-shaped reflector according to FIG. 3a, a large number of facets being shown in the form of a grid;
  • FIG. 3c shows the contact surfaces of the bases of two lamp bases which are congruent with one another and which, according to FIG. 3d, form a closed cross-sectional area when inserted into the ring flange of the reflector.

    • Gemäß Figur 1 besteht der Reflektor 1 näherungsweise aus einem Rotationsellipsoid, in dessen Brennpunktbereich, welcher schematisch als Zone 3 entlang der Reflektorachse 4 dargestellt ist, sich die Wendel 5 der Lampe 6 befindet; die reflektierende Oberfläche 2 weist eine Vielzahl von rillenförmigen Kannelierungen, bzw. Facetten 8, auf, wie sie bereits in ähnlicher Form aus der eingangs genannten US-PS 3,511,983 bekannt ist; aufgrund der Facetten 8 ergibt sich eine weitgehend schattenfreie und gleichmäßige Ausleuchtung des bestrahlten Operationsfeldes, bzw. Beleuchtungsfeldes, da jede Facette jeweils nahezu das gesamte Operations- bzw. Beleuchtungsfeld ausleuchtet.According to Figure 1, the reflector 1 consists approximately of an ellipsoid of revolution, in the Focus area, which is shown schematically as zone 3 along the reflector axis 4 is the filament 5 of the lamp 6; the reflective surface 2 has one Variety of groove-shaped flutes, or facets 8, as already in similar Form is known from the aforementioned US Patent 3,511,983; due to the facets 8 results a largely shadow-free and uniform illumination of the irradiated surgical field, or lighting field, since each facet covers almost the entire surgical or illuminating field.

    Die aus Lampenkolben 7 und Sockel 9 bestehende Strahlerlampe 6 bzw. 6' als einzuwechselnde Lampe ist entlang der Achse 4 in eine kreisrunde Öffnung 11 mit einem umlaufenden Flansch eingeführt, wobei der sich an den Kolben 7 anschließende zylindrische Teil 10 des Sockels 9 die eingesetzte Lampe gegen Verschiebung in radialer Richtung und der anhand der zusätzlich dargestellten Lampe 6' erkennbare Teller-Flansch 12 gegen axiale Verschiebung und Verkippung sichert. The lamp lamp 6 or 6 'consisting of lamp bulb 7 and base 9 as to be replaced Lamp is along axis 4 in a circular opening 11 with a circumferential Inserted flange, the cylindrical part 10 of the base adjoining the piston 7 9 the lamp used against displacement in the radial direction and based on the additionally shown lamp 6 'recognizable plate flange 12 against axial displacement and Secures tilting.

    Wie anhand der Figur 2 erkennbar ist, wird die Lampe 6' entlang der Reflektorachse 4 durch Öffnung 11 des Reflektors so eingeführt, dass der zylindrische Teil 10 der Lampe von dem die Öffnung 11 umgebenden Ring-Flansch 13 gegen radiale Verschiebung und der auf der Außenkante des Ring-Flansches 13 aufliegende Teller-Flansch 12 die Lampe gegen axiale Verschiebung und Verkippung sichert, wobei ein zusätzliches Anpresselement in Form eines Bügels 14 vorgesehen ist, welches in eine Nut 17 auf der Rückseite des Teller-Flansches 12 eingreift; durch Verspannung mittels des am Außenflansch 15 des Reflektors zu befestigenden Anpressbügels 14 wird Teller-Flansch 12 gegen den Ring-Flansch 13 gedrückt wird, so dass die Strahlerlampe 6 sich in einer justierten Position befindet.As can be seen from FIG. 2, the lamp 6 ′ is passed along the reflector axis 4 Opening 11 of the reflector inserted so that the cylindrical part 10 of the lamp from which the Opening 11 surrounding ring flange 13 against radial displacement and that on the outer edge of the ring flange 13 overlying plate flange 12 the lamp against axial displacement and tilting, an additional pressing element in the form of a bracket 14 is provided, which engages in a groove 17 on the back of the plate flange 12; by bracing by means of the pressure bracket to be attached to the outer flange 15 of the reflector 14 plate flange 12 is pressed against the ring flange 13, so that the lamp 6 is in an adjusted position.

    Bei Ausfall einer im Reflektor 1 befindlichen Lampe 6 gemäß Figur 1 wird diese entlang der Reflektorachse 4 aus der Reflektoröffnung 11 in rückwärtiger Richtung des Reflektors herausgezogen und durch eine ordnungsgemäße Lampe, wie sie durch Lampe 6' dargestellt ist, entlang der Achse 4 in Öffnung 11 des Reflektors ersetzt; dabei wird der zylindrische Teil 10 des Sockels 9 der Lampe 6' in die von einem Ring-Flansch 13 umgebene Öffnung 11 entlang der Achse 4 solange eingeschoben, bis Teller-Flansch 12 der Lampe 6 auf der Außenkante des Ring-Flansches zur Auflage gelangt und die Lampe mittels des zylindrischen Teils 10 in radialer Richtung und mittels des Teller-Flansches 12 in axialer Richtung arretiert ist; mit der Arretierung ist auch die Wendellage innerhalb des Reflektors ordnungsgemäß einjustiert, da bereits bei der Herstellung der Lampe 6 der Kolben 7 mit Wendel 5 gegenüber dem Sockel 9 so positioniert wird, dass die spätere exakte Justierung durch einfachen Austausch mit anschließender Arretierung der Lampe 6 gewährleistet ist.If a lamp 6 in the reflector 1 according to FIG. 1 fails, the lamp 6 is moved along the reflector axis 4 pulled out of the reflector opening 11 in the rearward direction of the reflector and along a proper lamp as shown by lamp 6 ' the axis 4 replaced in opening 11 of the reflector; the cylindrical part 10 of the base 9 of the lamp 6 'in the opening 11 surrounded by a ring flange 13 along the axis 4 pushed in until plate flange 12 of lamp 6 on the outer edge of the ring flange comes to rest and the lamp by means of the cylindrical part 10 in a radial Direction and is locked in the axial direction by means of the plate flange 12; with the lock the helix position inside the reflector is also properly adjusted, since the Production of the lamp 6 of the bulb 7 with the filament 5 positioned relative to the base 9 that the later exact adjustment by simple exchange with subsequent locking the lamp 6 is guaranteed.

    Anhand der Figur 2 ist die Einführrichtung entlang des Pfeiles 18 parallel zu Reflektorachse 4 erkennbar, wobei die Arretierungsposition durch Auflage des Teller-Flansches 12 auf die Außenkante des Ring-Flansches 13 erzielt wird. Die Fixierung in der arretierten Position der Lampe 6, bzw. 6' erfolgt durch Anpressbügel 14, welcher durch zwei sich diametral gegenüberliegende lösbare Befestigungen im Bereich des Außen-Flansches 15 des Reflektors 1 gehalten wird, wodurch eine Presswirkung auf die im Teller-Flansch 12 vorgesehene Nut 17 ausgeübt wird. Die aus dem Teller-Flansch 12 herausgeführten gegeneinander isolierten Stromzuleitungen 19, 20 werden nach dem Einsetzvorgang mit der Stromversorgung der medizinischen Leuchte verbunden; es ist jedoch auch möglich, die Lampe durch Steckverbindungen mit Strom zu versorgen.2, the direction of insertion along arrow 18 is parallel to reflector axis 4 recognizable, the locking position by resting the plate flange 12 on the outer edge of the ring flange 13 is achieved. The fixation in the locked position of the lamp 6, or 6 'is carried out by pressure bracket 14, which is diametrically opposed by two releasable fastenings held in the region of the outer flange 15 of the reflector 1 is, which exerts a pressing effect on the groove 17 provided in the plate flange 12 becomes. The power leads that are insulated from one another from the plate flange 12 19, 20 after the insertion process with the power supply of the medical Light connected; however, it is also possible to power the lamp through plug connections to supply.

    In der erfindungsgemäßen Ausführungsform gemäß Figur 3a ist die zum Einsatz der Lampe vorgesehene Öffnung 11 in ovaler Form ausgeführt, wobei der die Öffnung 11 umgebende Flansch 13 ebenfalls einen ovalen Querschnitt aufweist; in diese Öffnung 11 sind zwei, mit ihren Längsachsen zueinander parallel ausgerichtete Lampen 6", 6"' einsetzbar, deren Sockel 9", 9"' in ihrem Querschnitt jeweils ein Halboval bilden, wobei sich beide Sockel im eingesetzten Zustand zu einem Oval ergänzen, dessen Außenkontur der Innenfläche des Flansches 13 spielfrei angepasst ist; das Oval ist auch anhand der in Figur 3b teilweise schematisch dargestellten ovalen Öffnung 11 innerhalb des mit einer Vielzahl von Facetten 8 versehenen Reflektors 1 erkennbar. Eine entsprechend angepasste Querschnittsfläche ist anhand der Figuren 3c und 3d beschrieben, wobei die beiden Sockel 9", 9'" im Bereich ihrer zueinander gekehrten Auflageflächen 22", 22"' praktisch ineinander greifen, während ihre Außenflächen mit einem außen umlaufenden Tellerflansch 12", 12"' verbunden sind; beim Zusammensetzen der ursprünglich räumlich getrennten Sockel 9", 9"' nach Figur 3c zu einem gemeinsam gebildeten zweiteiligen Sockel gemäß Figur 3d bilden die bisher teilweise umlaufenden Flanschbereiche 12", 12"' einen geschlossenen umlaufenden Tellerflansch. Die Kontaktierung der Lampen 6", 6"' erfolgt über äußere Kontaktstifte 24", 25", 24"', 25"'.In the embodiment according to the invention according to FIG. 3a, the lamp is used provided opening 11 carried out in an oval shape, wherein the surrounding the opening 11 Flange 13 also has an oval cross section; in this opening 11 are two, with their Lamps 6 ", 6" 'aligned parallel to one another in longitudinal axes can be used, whose bases 9 ", 9"' each form a half oval in cross-section, with both bases being in the inserted state add to an oval, the outer contour of the inner surface of the flange 13 without play is adapted; the oval is also shown schematically in FIG. 3b oval opening 11 within the reflector 1 provided with a plurality of facets 8 recognizable. A correspondingly adapted cross-sectional area is shown in FIGS. 3c and 3d described, wherein the two bases 9 ", 9 '" in the region of their mutually facing bearing surfaces 22 ", 22" 'practically interlock, while their outer surfaces with an outer circumferential Plate flange 12 ", 12" 'are connected; when putting the originally together spatially separated base 9 ", 9" 'according to Figure 3c to a jointly formed two-part The base according to FIG. 3d form the flange regions 12 ″, 12 ″, which have been partially circumferential so far closed circumferential plate flange. The lamps 6 ", 6" 'are contacted via outer contact pins 24 ", 25", 24 "', 25"'.

    Die Ausgestaltung des auf diese Weise zusammengesetzten Sockels 9", 9'" entspricht im übrigen in ihrer Arretierungs-Funktion dem anhand der Figuren 1 und 2 erläuterten Beispiel.The design of the base 9 ", 9 '" assembled in this way corresponds to the rest in its locking function the example explained with reference to Figures 1 and 2.

    Claims (8)

    1. Medical luminaire with a projector unit made up of at least one lamp and a reflector, wherein the reflector is made of metal and has a metallic or metallized surface, wherein an opening (11) with a peripheral tubular ring-flange (13) is provided for the insertion of at least one projector lamp (6) with a base (9) adapted to the cross-section of the opening and the base (9) bears at least in part on the inside of the ring-flange (13) and, at the end of the lamp remote from the light-emission end, the base (9) has a widened region which rests at least in part on the outer edge of the region of the ring-flange (13) facing away from the light emission, characterized in that the ring-flange (13) has an essentially oval or elliptical cross-section, the widened region having at least one leadthrough for the electrical lead and at least one pressure face for resting a clamping yoke (14) subject to spring action.
    2. Luminaire according to Claim 1, characterized in that the base (9) has a cylindrical region (10) which the widened region in the form of a disk flange (12) adjoins.
    3. Luminaire according to Claim 1 or Claim 2, characterized in that the base (9) is made of heat-resistant electrically insulating material.
    4. Luminaire according to any one of Claims 1 to 3, characterized in that the reflector (1) is made of aluminium.
    5. Luminaire according to any one of Claims 1 to 4, characterized in that the ring-flange (13) is configured at least in part as a hollow cylinder.
    6. Luminaire according to Claim 1, characterized in that the ring-flange (13) has an essentially polygonal cross-section.
    7. Luminaire according to any one of Claims 1 to 6, characterized in that the cross-section of the shell of the lamp base is adapted to the cross-section of the ring-flange (13).
    8. Luminaire according to any one of Claims 1 to 7, characterized in that an additional lamp is inserted, whose base is joined to the base of the first lamp to form a closed cross-section whose outer contour is adapted to the inner contour of the ring-flange (13).
    EP96117042A 1995-11-20 1996-10-24 Medical lamp with a projector to be assembled Expired - Lifetime EP0774619B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE19543006 1995-11-20
    DE19543006A DE19543006C5 (en) 1995-11-20 1995-11-20 Fixing a light source in a reflector of a spot lamp

    Publications (2)

    Publication Number Publication Date
    EP0774619A1 EP0774619A1 (en) 1997-05-21
    EP0774619B1 true EP0774619B1 (en) 2002-10-09

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    ID=7777781

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    Application Number Title Priority Date Filing Date
    EP96117042A Expired - Lifetime EP0774619B1 (en) 1995-11-20 1996-10-24 Medical lamp with a projector to be assembled

    Country Status (7)

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    US (1) US5800051A (en)
    EP (1) EP0774619B1 (en)
    JP (1) JPH09171702A (en)
    AT (1) ATE225919T1 (en)
    DE (2) DE19543006C5 (en)
    DK (1) DK0774619T3 (en)
    ES (1) ES2184824T3 (en)

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    US6752515B2 (en) * 2001-04-16 2004-06-22 Cyberlux Corporation Apparatus and methods for providing emergency lighting
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    Also Published As

    Publication number Publication date
    DE19543006C5 (en) 2004-08-05
    DE19543006A1 (en) 1997-05-22
    DK0774619T3 (en) 2003-01-27
    DE59609773D1 (en) 2002-11-14
    DE19543006C2 (en) 1999-11-11
    EP0774619A1 (en) 1997-05-21
    JPH09171702A (en) 1997-06-30
    ATE225919T1 (en) 2002-10-15
    US5800051A (en) 1998-09-01
    ES2184824T3 (en) 2003-04-16

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