EP2773306A1 - Lamp, in particular an operation lamp - Google Patents

Lamp, in particular an operation lamp

Info

Publication number
EP2773306A1
EP2773306A1 EP12784544.4A EP12784544A EP2773306A1 EP 2773306 A1 EP2773306 A1 EP 2773306A1 EP 12784544 A EP12784544 A EP 12784544A EP 2773306 A1 EP2773306 A1 EP 2773306A1
Authority
EP
European Patent Office
Prior art keywords
lamp
recesses
luminaire
housing
flow
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.)
Granted
Application number
EP12784544.4A
Other languages
German (de)
French (fr)
Other versions
EP2773306B1 (en
Inventor
Hermann Hauschulte
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.)
Trilux Medical GmbH and Co KG
Original Assignee
Trilux Medical GmbH and Co KG
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 Trilux Medical GmbH and Co KG filed Critical Trilux Medical GmbH and Co KG
Publication of EP2773306A1 publication Critical patent/EP2773306A1/en
Application granted granted Critical
Publication of EP2773306B1 publication Critical patent/EP2773306B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/01—Housings, e.g. material or assembling of housing parts
    • 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
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • F21V33/0088—Ventilating systems
    • 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 lamp, in particular
  • TAV ceilings Operating light for use in rooms with ceilings with low-turbulence displacement (TAV ceilings), with a luminaire housing and a main direction of emission of light generated by the luminaire.
  • TAV ceilings With a luminaire housing and a main direction of emission of light generated by the luminaire.
  • the object of the invention is to provide a generic lamp, in particular surgical lamp, which causes at least a lower turbulence.
  • Luminaire housing of the turbulent boundary layer reduced.
  • Displacement air can be significantly reduced.
  • Vacuum zone of the displacement flow in the flow direction behind the luminaire housing can also be used as a lee zone
  • Such recesses are generally and in particular in their training as kugelkalotten shame depressions referred to as dimples. These dimples or
  • Wells are adjacent to each other, for example, arranged on golf balls, where one of a
  • the wind pressure or dynamic pressure on the luminaire housing may be reduced. This reduction can be up to 50%.
  • the laminar flow can be slowed down less in the region of the lamp housing or in the flow direction behind the lamp housing and can thus over a greater distance behind the lamp housing as a displacement flow serve.
  • the flow velocity of the displacement air necessary for the displacement of the circulating air in the surgical area can thus be reduced, which in turn is perceived as pleasant by the surgeons working in the operating theater area.
  • a possible risk of a cold can occur
  • the use of the effect can be limited by the fact that a prescribed minimum supply air speed of the displacement air must be maintained in order to ensure a sufficient displacement of the room air in the surgical field.
  • the recess may have an edge-free, smooth inner surface. Otherwise, undesirable turbulences can easily arise, which can additionally swirl the incoming air.
  • the depressions are free of additional internal surface structures as dimples.
  • the depressions have a smooth
  • the depressions are empty as dimples, i. free from arranged in them
  • the opening edge which forms the recess with the outside of the housing, rounded.
  • the depressions can be distributed over the entire outer side of the lamp housing.
  • the recesses are at the areas of the outside of the lamp housing.
  • Luminaire housing provided, at least with a
  • Direction component are arranged facing away from the main emission direction.
  • at least the areas of the outside of the luminaire housing which are arranged in the vacuum zone during operation are dulled, ie completely covered with the depressions or dimples.
  • the depressions can also be in the areas of the outside perpendicular to the Main emission can be arranged.
  • the recesses are at least approximately
  • the recesses may be equally spaced from each other or adjacent to each other.
  • the depressions in a spherical geometry preferably adapted to the luminaire housing
  • Dimples which are arranged on circumferential annular areas of the same axial extent of the housing, to be the same in each case.
  • the depressions can according to the principle of a maximum distribution density at the
  • a possible area-covering arrangement of the recesses may be provided on the outside of the lamp housing.
  • a surface coverage that is, the area ratio of the recesses in relation to the total outer surface of the provided for the wells outside of the
  • Lamp housing more than 50%, preferably more than 60%, more than 70% or more than 85% be provided.
  • Patterns can be arranged.
  • up to 500 dimples can be arranged in a pattern of 60 spherical triangles and three different dimple sizes, shapes and distributions on a golf ball. Because the
  • the golf ball may have, far more recesses, such as 1000 and more depressions may be provided.
  • At the erfindungsgeraä touch lamp can be provided equal or even greater density of wells as in the golf balls. However, it can also be a lesser
  • Well density may be provided, wherein the wells may have correspondingly larger opening profiles than the golf ball. It can be at a hemispherical
  • Outer shape of the lamp housing to be provided on the outside of the luminaire housing up to 250 wells.
  • substantially fewer depressions in particular less than 50, advantageously less than 30 or 20 wells on the outside of the luminaire, are preferred on the luminaire
  • Luminaire housing provided.
  • a plurality of wells may also be less than 20 wells.
  • At least five recesses are provided.
  • the possible optimal number depends among others
  • the recesses are arranged symmetrically to a central axis of the lamp housing, in particular symmetrically to the main emission direction.
  • the recesses can also be asymmetrical to the central axis of the luminaire housing, in particular in a partial area or in several partial areas of the recesses
  • provided outer surface of the lamp housing may be arranged.
  • Center axis asymmetric negative pressure zone can be adjusted.
  • the depressions may each have an opening with a round, in particular circular or oval, or polygonal opening edge.
  • the recesses may each have a spherical cap-like interior.
  • the opening edge may preferably take into account the Spherical distortion due to the curvature of space
  • Luminaire housing to the central axis of the recess be formed asymmetrically.
  • Luminaire housing be formed at least in the areas provided for the wells of its outer side kugelkalottenartig to hemispherical or spherical segment-like.
  • the luminaire housing as a
  • Fig. 1 is a side view of a lamp according to the prior
  • FIG. 2 is a side view of a lamp according to the invention
  • FIGS. 3a and 3b each show an enlarged detail
  • FIG. 4 shows a side view of an operating field with the luminaire according to FIG. 2.
  • Lamp 1 accordinging to the prior art, in Figures 2, 3a and 3b, respectively, an embodiment of an inventive
  • FIG. 4 shows an operating field F with two luminaires 1 according to the invention according to FIG. 2 here.
  • the lamp 1, 1 ' is designed as a surgical light for use in rooms with low turbulence, ie substantially laminar displacement flow V (TAV ceilings), such as
  • the luminaire 1, 1 ' has a luminaire housing 2, 2' and radiates generated light in a main emission direction h.
  • the flow direction s of the displacement flow V is parallel to the main emission direction h.
  • Lamp 1 according to the invention in its embodiments according to Figures 2, 3 and 4 on its outer side 3 a plurality of so-called. Dimples, trough-like depressions 4 each with a smooth edge-free inner surface, while the housing 2 'of the lamp 1' according to the prior art is provided in Figure 1 with a smooth outer surface 3 '.
  • an interface layer 5, 5' with laminar or at least low-turbulence flow forms. If the laminar displacement flow hits the recessed outside 3 of the luminaire 1, it forms
  • Boundary layer 5, in the turbulence occur. This situation is shown schematically in Figures 1 and 2, wherein the boundary layer 5 'in a conventional lamp 1' according to Figure 1, a thickness a 'greater than the thickness a of the boundary layer 5 of the lamp 1 according to the invention according to Figure 2.
  • the boundary layer 5 hugs in the inventive lamp 1 due to the provided wells 4 closer to the outside 3 of the lamp 1 at.
  • FIG. 4 shows, purely schematically and by way of example, the surgical field F with operating table T, above which a
  • TAV cover D is arranged to deliver the germ-free displacement flow V.
  • two luminaires 1 according to the invention according to FIG. 2 for illuminating the operating table T are arranged here, wherein the two luminaires 1 are not specifically marked here
  • the area distribution of the recesses 4 on the outside 3 has an immediate effect on the thickness a of the boundary layer 5 and the length 1 of the negative pressure zone Z, i. the larger the area occupation, the smaller the thickness a of the
  • Boundary layer 5 and the length 1 of the vacuum zone Z Therefore Here is a particularly high area distribution provided. This is achieved in the embodiment of the lamp 1 according to Figure 2, characterized in that the wells 4 adjacent to adjacent wells 4 immediately adjacent to formation of gussets and the wells 4 three different
  • Wells 4 here a kugelkalottenindi shape with a circular opening edge 6, so that the through
  • Cutouts A of the outside 3 in Figures 3a and 3b a polygonal opening edge 6, wherein the opening edge 6 of the lamp 1 according to Figure 3a a pentagonal shape and the opening edge 6 of the lamp 1 according to Figure 3b a hexagonal shape to form a honeycomb-like structure without Have gussets.
  • the depressions 4 are distributed regularly in all embodiments of the lamp 1 according to the invention. They are only on the parts of the outside 3 of the
  • Luminaire housing 2 is provided, with respect to the
  • Luminaire housing 2 in these parts a kugelkalottenieri shape with a central axis m parallel to
  • Main emission direction h has. Furthermore, the

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

The invention relates to a lamp (1), in particular an operation lamp for use in rooms having ceilings (D) having low-turbulence displacement flow (V) (TAV ceilings), having a lamp housing (2) and a primary emission direction (h) of light generated by the lamp (1). In order to reduce a volume of a negative pressure zone (Z) of the displacement flow (V) in the flow direction (s) behind the lamp housing (2), according to the invention the lamp housing (2) has a plurality of trough-like recesses (4) on the outside.

Description

Leuchte, insbesondere Operationsleuchte  Light, especially surgical light
Die Erfindung betrifft eine Leuchte, insbesondere The invention relates to a lamp, in particular
Operationsleuchte zur Verwendung in Räumen mit Decken mit turbulenzarmer Verdrängungsströmung (TAV-Decken) , mit einem Leuchtengehäuse und einer Hauptabstrahlrichtung von mittels der Leuchte erzeugtem Licht. Operating light for use in rooms with ceilings with low-turbulence displacement (TAV ceilings), with a luminaire housing and a main direction of emission of light generated by the luminaire.
Derartige Leuchten sind bekannt. Bei modernen OP-Räumen wird zur Erzeugung einer möglichst sterilen Atmosphäre Such lights are known. In modern operating theaters, the creation of the most sterile atmosphere possible
fortwährend möglichst keim- und staubfreie sowie, zur continuously germ-free and dust-free as well as, for
Vermeidung von Turbulenzen, laminare Luft deckenseitig inPrevention of turbulence, laminar air in the ceiling side
Strömungsrichtung von der Decke zum Boden hin dem jeweiligen OP-Raum zugeführt. OP-Leuchten, in dem Luftraum zwischen TAV-Decke und OP-Tisch eingesetzt, bilden einen Direction of flow from the ceiling to the bottom of the respective operating room supplied. Surgical lights, used in the air space between TAV ceiling and operating table, form one
Strömungswiderstand mit einer in Strömungsrichtung hinteren Leeseite, an der Verwirbelungen der die Leuchte umströmenden Luft auftreten. Infolge dieser Verwirbelungen können, das notwendig sterile Umfeld des OP-Tisches empfindlich störend, Partikel, Krankheitskeime und dergleichen bodenseitig und/oder aus der Umgebung des OP-Tisches aufgewirbelt werden. Flow resistance with a rear leeward in the flow direction, occur at the turbulence of the air flowing around the lamp. As a result of these turbulences, the necessarily sterile environment of the operating table can be sensitively disturbed, particles, disease germs and the like on the floor side and / or from the surroundings of the operating table.
Aufgabe der Erfindung ist, eine gattungsgemäße Leuchte, insbesondere Operationsleuchte, bereitzustellen, die eine zumindest geringere Verwirbelung hervorruft. The object of the invention is to provide a generic lamp, in particular surgical lamp, which causes at least a lower turbulence.
Die gestellte Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruches 1 gelöst. Vorteilhafte The stated object is achieved by the Characteristics of claim 1 solved. advantageous
Weiterbildungen werden in den Unteransprüchen beschrieben. Die gestellte Aufgabe wird bereits dadurch gelöst, dass das Leuchtengehäuse zur Verringerung eines Volumens einer Further developments are described in the subclaims. The object is already achieved in that the luminaire housing to reduce a volume of
Unterdruckzone der Verdrängungsströmung in Strömungsrichtung derselben hinter dem Leuchtengehäuse außenseitig eine Low pressure zone of the displacement flow in the flow direction of the same behind the lamp housing on the outside a
Vielzahl von muldenartigen Vertiefungen aufweist. Having a plurality of trough-like depressions.
Mit ihrem Überströmen der muldenartigen Vertiefungen wird eine bei einer im Wesentlichen laminaren Luftanströmung an sich laminare Grenzschicht um das Leuchtengehäuse in eine turbulente Grenzschicht umgewandelt. Dies kann unter Anderem auf eine Unterdruckbildung in den Vertiefungen bei With its overflow of the trough-like depressions, a laminar boundary layer laminar in itself with a substantially laminar air flow is converted into a turbulent boundary layer around the luminaire housing. This can be due, inter alia, to a build-up of negative pressure in the depressions
vorbeiströmender Luft zurückgeführt werden. In Folge dessen wird die Luftströmung enger an dem Leuchtengehäuse geführt. Ferner wird das Volumen der Unterdruckzone der be returned by passing air. As a result, the air flow is guided closer to the lamp housing. Further, the volume of the negative pressure zone of the
Verdrängungsströmung in Strömungsrichtung hinter dem  Displacement flow in the flow direction behind the
Leuchtengehäuse der turbulenten Grenzschicht verringert. Damit kann die Verwirbelung der die Leuchte anströmenden Luft, das heißt, bei Einsatz als OP-Leuchte der Luminaire housing of the turbulent boundary layer reduced. Thus, the turbulence of the air flowing to the lamp, that is, when used as an operating light of the
Verdrängungsluft deutlich verringert werden. Die Displacement air can be significantly reduced. The
Unterdruckzone der Verdrängungsströmung in Strömungsrichtung hinter dem Leuchtengehäuse kann auch als Lee-Zone  Vacuum zone of the displacement flow in the flow direction behind the luminaire housing can also be used as a lee zone
beschrieben werden. Derartige Vertiefungen wird allgemein und insbesondere in ihrer Ausbildung als kugelkalottenartige Vertiefungen als Dimples bezeichnet. Diese Dimples oderto be discribed. Such recesses are generally and in particular in their training as kugelkalottenartige depressions referred to as dimples. These dimples or
Vertiefungen sind aneinander abgrenzend beispielesweise an Golfbällen angeordnet, wobei man hier von einer Wells are adjacent to each other, for example, arranged on golf balls, where one of a
„gedimpelten" Oberfläche spricht. "Dotted" surface speaks.
Infolge dieser Vertiefungen oder Dimples kann der Winddruck oder dynamischen Druck auf das Leuchtengehäuse verringern werden. Diese Verringerung kann bis zu 50% betragen. Damit kann die laminare Strömung im Bereich des Leuchtengehäuses bzw. in Strömungsrichtung hinter dem Leuchtengehäuse geringer abgebremst werden und kann somit über eine größere Strecke hinter dem Leuchtengehäuse als Verdrängungsströmung dienen. Wegen des verringerten Strömungswiderstandes kann somit die zur Verdrängung der Umluft in dem OP-Bereich notwendige Strömungsgeschwindigkeit der Verdrängungsluft herabgesetzt werden, welches wiederum von den im dem OP- Bereich arbeitenden Operateure als angenehm empfunden wird. Zudem kann mit Verringerung der Strömungsgeschwindigkeit der Verdrängungsluft eine mögliche Erkältungsgefahr dieser As a result of these depressions or dimples, the wind pressure or dynamic pressure on the luminaire housing may be reduced. This reduction can be up to 50%. Thus, the laminar flow can be slowed down less in the region of the lamp housing or in the flow direction behind the lamp housing and can thus over a greater distance behind the lamp housing as a displacement flow serve. Because of the reduced flow resistance, the flow velocity of the displacement air necessary for the displacement of the circulating air in the surgical area can thus be reduced, which in turn is perceived as pleasant by the surgeons working in the operating theater area. In addition, with a reduction in the flow velocity of the displacement air, a possible risk of a cold can occur
Operateure während ihres Arbeitens im OP-Bereich vermindert werden. Der Ausnutzung des Effektes können dadurch Grenzen gesetzt sein, indem eine vorgeschriebene Mindest-Zuluft- Geschwindigkeit der Verdrängungsluft eingehalten werden muss, um eine ausreichende Verdrängung der Raumesluft im OP- Feld zu gewährleisten. Um eine möglichst ungestörten Verlauf der Luftströmung zu erzielen, kann die Vertiefung eine kantenfreie, glatte Innenoberfläche aufweisen. Anderenfalls können leicht unerwünschte Turbulenzen entstehen, die die anströmende Luft zusätzlich verwirbeln können. Operators are reduced during their work in the operating room. The use of the effect can be limited by the fact that a prescribed minimum supply air speed of the displacement air must be maintained in order to ensure a sufficient displacement of the room air in the surgical field. In order to achieve the best possible undisturbed course of the air flow, the recess may have an edge-free, smooth inner surface. Otherwise, undesirable turbulences can easily arise, which can additionally swirl the incoming air.
Strömungstechnisch günstig sind die Vertiefungen als Dimples frei von zusätzlichen inneren Oberflächenstrukturen. In terms of flow technology, the depressions are free of additional internal surface structures as dimples.
Vorzugsweise weisen die Vertiefungen eine glatte Preferably, the depressions have a smooth
Innenoberfläche auf. Vorteilhaft sind die Vertiefungen als Dimples leer, d.h. frei von in ihnen angeordneten  Inside surface on. Advantageously, the depressions are empty as dimples, i. free from arranged in them
Vorrichtungen. Vorzugsweise ist der Öffnungsrand, den die Vertiefung mit der Außenseite des Gehäuses ausbildet, gerundet. Devices. Preferably, the opening edge, which forms the recess with the outside of the housing, rounded.
Die Vertiefungen können über die gesamte Außenseite des Leuchtengehäuse verteilt angeordnet sein. Vorzugsweise sind die Vertiefungen an den Bereichen der Außenseite des The depressions can be distributed over the entire outer side of the lamp housing. Preferably, the recesses are at the areas of the outside of the
Leuchtengehäuses vorgesehen, die zumindest mit einer Luminaire housing provided, at least with a
Richtungskomponente entgegen der Hauptabstrahlrichtung weisend angeordnet sind. Vorzugsweise sind zumindest die im Betrieb in der Unterdruckzone angeordneten Bereiche der Außenseite des Leuchtengehäuses gedimpelt, d.h. vollständig mit den Vertiefungen bzw. Dimples bedeckt. Die Vertiefungen können auch in den Bereichen der Außenseite senkrecht zu der Hauptabstrahlrichtung angeordnet sein. Direction component are arranged facing away from the main emission direction. Preferably, at least the areas of the outside of the luminaire housing which are arranged in the vacuum zone during operation are dulled, ie completely covered with the depressions or dimples. The depressions can also be in the areas of the outside perpendicular to the Main emission can be arranged.
Vorzugsweise sind die Vertiefungen zumindest in etwa Preferably, the recesses are at least approximately
regelmäßig oder gleichmäßig verteilt an dem Leuchtengehäuse angeordnet. Die Vertiefungen können gleich beabstandet zueinander oder aneinander angrenzend angeordnet sein. Um eine möglichst symmetrische Verringerung des Volumens der Unterdruckzone der Verdrängungsströmung zu erzielen, wird vorgeschlagen, die Vertiefungen in einer vorzugsweise dem Leuchtengehäuse angepassten sphärischen Geometrie regularly or evenly distributed arranged on the lamp housing. The recesses may be equally spaced from each other or adjacent to each other. In order to achieve the most symmetrical reduction of the volume of the negative pressure zone of the displacement flow, it is proposed that the depressions in a spherical geometry, preferably adapted to the luminaire housing
anzuordnen. Hierzu kann beispielsweise die Anzahl der to arrange. For this example, the number of
Dimples, die auf umfänglichen ringartigen Bereichen gleicher axialer Erstreckung des Gehäuses angeordnet sind, jeweils gleich sein.  Dimples, which are arranged on circumferential annular areas of the same axial extent of the housing, to be the same in each case.
Zur Optimierung dieses Effektes können die Vertiefungen nach dem Prinzip einer maximalen Verteilungsdichte an der To optimize this effect, the depressions can according to the principle of a maximum distribution density at the
Außenseite des Leuchtengehäuses angeordnet sein. Somit kann eine möglichst flächendeckende Anordnung der Vertiefungen auf der Außenseite des Leuchtengehäuses vorgesehen sein. Somit kann eine Flächenbelegung, das heißt der Flächenanteil der Vertiefungen im Verhältnis zu der Gesamtaußenfläche der für die Vertiefungen vorgesehen Außenseite des  Be arranged outside of the lamp housing. Thus, a possible area-covering arrangement of the recesses may be provided on the outside of the lamp housing. Thus, a surface coverage, that is, the area ratio of the recesses in relation to the total outer surface of the provided for the wells outside of the
Lampengehäuses, mehr als 50%, vorzugsweise mehr als 60%, mehr als 70% oder mehr als 85% vorgesehen sein. Lamp housing, more than 50%, preferably more than 60%, more than 70% or more than 85% be provided.
In diesem Zusammenhang wird auf bekannte Verteilungen von Vertiefungen oder Dimples auf Golfbällen hingewiesen, bei denen eine Vielzahl von Vertiefungen in verschiedenen In this context, reference is made to known distributions of depressions or dimples on golf balls, in which a plurality of depressions in different
Mustern angeordnet sein kann. Hierbei können bis zu 500 Dimples in einem Muster von 60 sphärischen Dreiecken und drei verschiedenen Dimplegrößen, -Formen und -Verteilungen an einem Golfball angeordnet sein können. Da die Patterns can be arranged. Here, up to 500 dimples can be arranged in a pattern of 60 spherical triangles and three different dimple sizes, shapes and distributions on a golf ball. Because the
erfindungsgemäße Leuchte eine für die Vertiefungen Lamp according to the invention one for the wells
vorgesehene größer Außenseite als der Golfball aufweisen kann, können weitaus mehr Vertiefungen, beispielsweise 1000 und mehr Vertiefungen vorgesehen sein. An der erfindungsgeraäßen Leuchte kann eine gleich oder sogar größere Dichte an Vertiefungen wie bei den Golfbällen vorgesehen sein. Es kann jedoch auch eine geringere provided greater outside than the golf ball may have, far more recesses, such as 1000 and more depressions may be provided. At the erfindungsgeraäßen lamp can be provided equal or even greater density of wells as in the golf balls. However, it can also be a lesser
Vertiefungsdichte vorgesehen sein, wobei die Vertiefungen entsprechend größere Öffnungsprofile als beim Golfball aufweisen können. Es können bei einer halbkugelartigen Well density may be provided, wherein the wells may have correspondingly larger opening profiles than the golf ball. It can be at a hemispherical
Außenform des Leuchtengehäuses bis zu 250 Vertiefungen außenseitig an dem Leuchtengehäuse vorgesehen sein. Outer shape of the lamp housing to be provided on the outside of the luminaire housing up to 250 wells.
Bevorzugt sind an einer Leuchte jedoch wesentlich weniger Vertiefungen, insbesondere weniger als 50, vorteilhaft weniger als 30 oder 20 Vertiefungen außenseitig an dem However, substantially fewer depressions, in particular less than 50, advantageously less than 30 or 20 wells on the outside of the luminaire, are preferred on the luminaire
Leuchtengehäuse vorgesehen. Somit kann eine Vielzahl von Vertiefungen auch weniger als 20 Vertiefungen sein. Luminaire housing provided. Thus, a plurality of wells may also be less than 20 wells.
Vorzugsweise sind mindestens fünf Vertiefungen vorgesehen. Die mögliche optimale Anzahl hängt unter anderem von Preferably, at least five recesses are provided. The possible optimal number depends among others
Strömungsverhältnissen, geometrischen Bedingungen und Flow conditions, geometric conditions and
Verhältnissen, wie Flächenbelegung, Öffnungsrandprofil, Verteilung und Durchmesser der Vertiefungen ab. Conditions such as area occupation, opening edge profile, distribution and diameter of the wells from.
Vorzugsweise sind die Vertiefungen symmetrisch zu einer Mittelsachse des Leuchtengehäuses, insbesondere symmetrisch zu der Hauptabstrahlungsrichtung angeordnet. Vorzugsweise ist zumindest das Leuchtengehäuse der Leuchte Preferably, the recesses are arranged symmetrically to a central axis of the lamp housing, in particular symmetrically to the main emission direction. Preferably, at least the luminaire housing of the lamp
achsensymmetrisch zur Mittelachse ausgebildet. Vorzugsweise ist die Hauptabstrahlrichtung parallel zur Mittelachse. Die Vertiefungen können auch asymmetrisch zu der Mittelsachse des Leuchtengehäuses, insbesondere in einem Teilbereich oder in mehreren Teilbereichen der für die Vertiefungen formed axisymmetric to the central axis. Preferably, the main emission direction is parallel to the central axis. The recesses can also be asymmetrical to the central axis of the luminaire housing, in particular in a partial area or in several partial areas of the recesses
vorgesehenen Außenoberfläche des Leuchtengehäuses angeordnet sein. Hierdurch kann beispielsweise eine bestimmte zur provided outer surface of the lamp housing may be arranged. As a result, for example, a specific for
Mittelachse asymmetrische Unterdruckzone eingestellt werden. Center axis asymmetric negative pressure zone can be adjusted.
Die Vertiefungen können jeweils eine Öffnung mit einem runden, insbesondere kreisrunden oder ovalen, oder polygonen Öffnungsrand aufweisen. Insbesondere können die Vertiefungen jeweils einen kugelkalottenartigen Innenraum aufweisen. Der Öffnungsrand kann vorzugsweise unter Berücksichtigung der sphärischen Verzerrung infolge der Raumkrümmung des The depressions may each have an opening with a round, in particular circular or oval, or polygonal opening edge. In particular, the recesses may each have a spherical cap-like interior. The opening edge may preferably take into account the Spherical distortion due to the curvature of space
Leuchtengehäuses zur Mittelachse der Vertiefung asymmetrisch ausgebildet sein. Luminaire housing to the central axis of the recess be formed asymmetrically.
In einer strömungsgünstigen Form der Leuchte kann das In a streamlined shape of the lamp can
Leuchtengehäuse zumindest in den für die Vertiefungen vorgesehenen Bereichen seiner Außenseite kugelkalottenartig bis halbkugelartig oder kugelabschnittsartig ausgebildet sein. Hierbei kann das Leuchtengehäuse eine als Luminaire housing be formed at least in the areas provided for the wells of its outer side kugelkalottenartig to hemispherical or spherical segment-like. Here, the luminaire housing as a
Lichtaustrittsfläche vorgesehene Schnittebene aufweisen. Have light exit surface provided cutting plane.
In Vereinfachung ihres Aufbaus kann die Leuchte In simplification of their construction, the light can
monoreflektorisch ausgebildet sein. be trained monoreflector.
Die vorliegende Erfindung wird im Folgenden anhand einer in einer Zeichnung dargestellten Ausführungsform der Leuchte näher erläutert. In der Zeichnung zeigen: The present invention will be explained in more detail below with reference to an embodiment of the luminaire shown in a drawing. In the drawing show:
Fig. 1 eine Seitenansicht einer Leuchte nach dem Stand der Fig. 1 is a side view of a lamp according to the prior
Technik,  Technology,
Fig. 2 eine Seitenansicht einer erfindungsgemäßen Leuchte, 2 is a side view of a lamp according to the invention,
Fig. 3a und 3b jeweils einen vergrößerten Ausschnitt aus FIGS. 3a and 3b each show an enlarged detail
einer Außenseite einer jeweils anderen  an outside of each other
Ausführungsform der Leuchte und  Embodiment of the luminaire and
Fig. 4 eine Seitenansicht eines OP-Feld mit der Leuchte gemäß Figur 2. 4 shows a side view of an operating field with the luminaire according to FIG. 2.
Jeweils in einer Seitenansicht werden in Figur 1 eine In each case in a side view in Figure 1 a
Leuchte 1' gemäß dem Stand der Technik, in Figuren 2, 3a und 3b jeweils eine Ausführungsform einer erfindungsgemäße Lamp 1 'according to the prior art, in Figures 2, 3a and 3b, respectively, an embodiment of an inventive
Leuchte 1 bzw. ein Ausschnitt A derselben gezeigt. In Figur 4 ist ein OP-Feld F mit hier zwei der erfindungsgemäßen Leuchten 1 gemäß Figur 2 gezeigt. (Zur Unterscheidung der Erfindung von dem Stand der Technik werden die die Bauteile der Leuchte 1' gemäß dem Stand der Technik bezeichnenden Bezugs zeichen zusätzlich mit einem hochgestellten Strich versehen.) In den hier gezeigten Beispielen ist die Leuchte 1, 1' als Operationsleuchte zur Verwendung in Räumen mit Decken mit turbulenzarmer, d.h. im Wesentlichen laminare Verdrängungsströmung V (TAV-Decken) ausgebildet, wie Luminaire 1 and a section A of the same shown. FIG. 4 shows an operating field F with two luminaires 1 according to the invention according to FIG. 2 here. (To distinguish the invention from the prior art, the components of the luminaire 1 'according to the prior art designating reference sign in addition to a superscript provided.) In the examples shown here, the lamp 1, 1 'is designed as a surgical light for use in rooms with low turbulence, ie substantially laminar displacement flow V (TAV ceilings), such as
beispielhaft in Figur 4 gezeigt. Die Leuchte 1, 1' weist ein Leuchtengehäuse 2, 2' auf und strahlt erzeugtes Licht in einer Hauptabstrahlrichtung h ab. In den Figuren 1 und 2 ist die Strömungsrichtung s der Verdrängungsströmung V parallel zur Hauptabstrahlungsrichtung h. Zur Verringerung eines Volumens einer Unterdruckzone Z der Verdrängungsströmung V in Strömungsrichtung s hinter dem Leuchtengehäuse 2 weist das Leuchtengehäuse 2 der shown by way of example in FIG. The luminaire 1, 1 'has a luminaire housing 2, 2' and radiates generated light in a main emission direction h. In FIGS. 1 and 2, the flow direction s of the displacement flow V is parallel to the main emission direction h. To reduce a volume of a vacuum zone Z of the displacement flow V in the flow direction s behind the lamp housing 2, the lamp housing 2 of
erfindungsgemäßen Leuchte 1 in ihren Ausführungsformen gemäß den Figuren 2, 3 und 4 an seiner Außenseite 3 eine Vielzahl von sog. Dimples, muldenartigen Vertiefungen 4 jeweils mit einer glatten kantenfreien Innenoberfläche auf, während das Gehäuse 2' der Leuchte 1' gemäß dem Stand der Technik in Figur 1 mit einer glatten Außenseite 3' versehen ist. Lamp 1 according to the invention in its embodiments according to Figures 2, 3 and 4 on its outer side 3 a plurality of so-called. Dimples, trough-like depressions 4 each with a smooth edge-free inner surface, while the housing 2 'of the lamp 1' according to the prior art is provided in Figure 1 with a smooth outer surface 3 '.
Mit Auftreffen der laminaren Verdrängungsströmung V auf das Gehäuse 2, 2' bildet sich eine Grenzschicht 5, 5' mit laminarer oder zumindest turbulenzarmer Strömung aus. Trifft die laminare Verdrängungsströmung auf die mit Vertiefungen versehene Außenseite 3 der Leuchte 1, so bildet sich Upon impact of the laminar displacement flow V on the housing 2, 2 ', an interface layer 5, 5' with laminar or at least low-turbulence flow forms. If the laminar displacement flow hits the recessed outside 3 of the luminaire 1, it forms
aufgrund der Vertiefungen 4 eine gegenüber der Grenzschicht 5' bei einer Leuchte 1' ohne Vertiefungen dünnere due to the recesses 4, a thinner compared to the boundary layer 5 'in a lamp 1' without wells
Grenzschicht 5 aus, in der Turbulenzen (nicht eingezeichnet) auftreten. Dieser Sachverhalt ist schematisch in Figuren 1 und 2 dargestellt, wobei die Grenzschicht 5' bei einer üblichen Leuchte 1' gemäß Figur 1 eine Dicke a' größer als die Dicke a der Grenzschicht 5 der erfindungsgemäßen Leuchte 1 gemäß Figur 2 ist. Die Grenzschicht 5 schmiegt sich bei der erfindungsgemäßen Leuchte 1 aufgrund der vorgesehenen Vertiefungen 4 enger an die Außenseite 3 der Leuchte 1 an.  Boundary layer 5, in the turbulence (not shown) occur. This situation is shown schematically in Figures 1 and 2, wherein the boundary layer 5 'in a conventional lamp 1' according to Figure 1, a thickness a 'greater than the thickness a of the boundary layer 5 of the lamp 1 according to the invention according to Figure 2. The boundary layer 5 hugs in the inventive lamp 1 due to the provided wells 4 closer to the outside 3 of the lamp 1 at.
In Strömungsrichtung s hinter der Leuchte 1, 1' bildet sich die Unterdruckzone Z, Z' mit Turbulenzen aus, die von laminarer Verdrängungsströmung umgeben wird. Dies wird in den Figuren 1 und 2 mittels kurzer gebogener Pfeile rein schematisch gezeigt, wobei Übergänge von der Unterdruckzone Z, Z' zur Umgebung der Einfachheit halber nicht dargestellt sind. Ein Vergleich der beiden Figuren 1 und 2 zeigt, dass die Unterdruckzone Z' bei der üblichen Leuchte 1' eine größere Länge 1' als die Länge 1 der Unterdruckzone Z bei der erfindungsgemäßen Leuchte 1 aufweist. Somit ist ein entsprechendes Volumen der Unterdruckzone Z bei Anströmung der erfindungsgemäßen Leuchte 1 mit der Verdrängungsströmung V verringert gegenüber dem Volumen der Unterdruckzone Z' bei Anströmung der üblichen Leuchte 1 mit dieser In the flow direction s behind the lamp 1, 1 'forms the negative pressure zone Z, Z 'with turbulence, which is surrounded by laminar displacement flow. This is shown purely schematically in FIGS. 1 and 2 by means of short curved arrows, with transitions from the vacuum zone Z, Z 'to the surroundings not being shown for the sake of simplicity. A comparison of the two Figures 1 and 2 shows that the negative pressure zone Z 'in the conventional lamp 1' has a greater length 1 'than the length 1 of the vacuum zone Z in the lamp 1 according to the invention. Thus, a corresponding volume of the negative pressure zone Z is reduced when the luminaire 1 according to the invention with the displacement flow V relative to the volume of the vacuum zone Z 'at the flow of the usual lamp 1 with this
Verdrängungsströmung V. Wegen der Turbulenzen in der Unterdruckzone Z, Z' besteht die Gefahr, dass bei Verwendung in dem OP-Feld F Aerosole, Krankheitskeime oder dergleichen aufgewirbelt oder angesogen werden und in das OP-Feld F bzw. auf den OP-Tisch T Displacement flow V. Because of the turbulence in the negative pressure zone Z, Z 'there is a risk that when used in the operating field F aerosols, germs or the like are whirled up or sucked and in the surgical field F or on the operating table T
gelangen. In Figur 4 wird rein schematisch und Beispiel gebend das OP-Feld F mit OP-Tisch T gezeigt, über dem einereach. FIG. 4 shows, purely schematically and by way of example, the surgical field F with operating table T, above which a
TAV-Decke D zur Abgabe der keimfreien Verdrängungsströmung V angeordnet ist. Zwischen OP-Tisch T und TAV-Decke D sind hier zwei erfindungsgemäße Leuchten 1 gemäß Figur 2 zur Beleuchtung des OP-Tisches T angeordnet, wobei die beiden Leuchten 1 von der hier nicht eigens eingezeichneten TAV cover D is arranged to deliver the germ-free displacement flow V. Between operating table T and TAV ceiling D, two luminaires 1 according to the invention according to FIG. 2 for illuminating the operating table T are arranged here, wherein the two luminaires 1 are not specifically marked here
Verdrängungsströmung umströmt werden. Infolge ihrer im  Displacement flow are flowed around. As a result of their im
Vergleich zum Stand der Technik kleinen Unterdruckzone Z wird die Gefahr des Aufwirbeins und Hineinsaugens von Compared to the prior art small vacuum zone Z is the risk of dislocation and sucking of
Aerosolen, Krankheitskeimen oder dergleichen deutlich verringert. Aerosols, germs or the like significantly reduced.
Die Flächenverteilung der Vertiefungen 4 auf der Außenseite 3 wirken sich unmittelbar auf die Dicke a der Grenzschicht 5 und die Länge 1 der Unterdruckzone Z aus, d.h. je größer die Flächenbelegung ist, desto geringer sind Dicke a der The area distribution of the recesses 4 on the outside 3 has an immediate effect on the thickness a of the boundary layer 5 and the length 1 of the negative pressure zone Z, i. the larger the area occupation, the smaller the thickness a of the
Grenzschicht 5 und die Länge 1 der Unterdruckzone Z. Daher ist hier eine besonders hohe Flächenverteilung vorgesehen. Dies wird bei der Ausführungsform der Leuchte 1 gemäß Figur 2 dadurch erzielt, dass die Vertiefungen 4 an benachbarte Vertiefungen 4 unmittelbar unter Ausbildung von Zwickeln angrenzen und die Vertiefungen 4 drei verschiedene Boundary layer 5 and the length 1 of the vacuum zone Z. Therefore Here is a particularly high area distribution provided. This is achieved in the embodiment of the lamp 1 according to Figure 2, characterized in that the wells 4 adjacent to adjacent wells 4 immediately adjacent to formation of gussets and the wells 4 three different
Durchmesser d1, d2 und d3 aufweisen. Ferner weisen die  Have diameter d1, d2 and d3. Furthermore, the
Vertiefungen 4 hier eine kugelkalottenartige Form mit einem kreisrunden Öffnungsrand 6 auf, so dass der durch die Wells 4 here a kugelkalottenartige shape with a circular opening edge 6, so that the through
Vertiefungen 4 hervorgerufene Effekt unabhängig von der Richtung auftritt, in der die Verdrängungsströmung V über die Vertiefungen 4 strömt. Wells 4 caused effect occurs regardless of the direction in which the displacement flow V flows over the wells 4.
Abweichend hierzu weisen die Vertiefungen 4 bei den Deviating from this, the depressions 4 in the
Ausführungsformen der Leuchte 1 gemäß der vergrößerten Embodiments of the lamp 1 according to the enlarged
Ausschnitte A der Außenseite 3 in den Figuren 3a und 3b einen polygonen Öffnungsrand 6 auf, wobei der Öffnungsrand 6 der Leuchte 1 gemäß Figur 3a eine fünfeckige Form und der Öffnungsrand 6 der Leuchte 1 gemäß Figur 3b eine sechseckige Form unter Ausbildung einer jeweils wabenartigen Struktur ohne Zwickeln aufweisen. Die Vertiefungen 4 sind in allen Ausführungsformen der erfindungsgemäßen Leuchte 1 regelmäßig verteilt angeordnet. Sie sind nur an den Teilen der Außenseite 3 des Cutouts A of the outside 3 in Figures 3a and 3b a polygonal opening edge 6, wherein the opening edge 6 of the lamp 1 according to Figure 3a a pentagonal shape and the opening edge 6 of the lamp 1 according to Figure 3b a hexagonal shape to form a honeycomb-like structure without Have gussets. The depressions 4 are distributed regularly in all embodiments of the lamp 1 according to the invention. They are only on the parts of the outside 3 of the
Leuchtengehäuses 2 vorgesehen, die bezüglich der Luminaire housing 2 is provided, with respect to the
Hauptabstrahlungsrichtung h mit einer Richtungskomponente gegen Hauptabstrahlungsrichtung h weisen, wobei das Have main direction of radiation h with a direction component against main emission direction h, the
Leuchtengehäuse 2 in diesen Teilen eine kugelkalottenartige Form mit einer Mittelachse m parallel zur  Luminaire housing 2 in these parts a kugelkalottenartige shape with a central axis m parallel to
Hauptabstrahlungsrichtung h aufweist. Ferner sind die Main emission direction h has. Furthermore, the
Vertiefungen in einer sphärischen Symmetrie, das heißt hier achsensymmetrisch zu der Hauptabstrahlungsrichtung h angeordnet . Recesses in a spherical symmetry, that is arranged here axially symmetrical to the main emission direction h.
Bezugszeichenliste LIST OF REFERENCE NUMBERS
2, 2' Leuchtengehäuse 2, 2 'luminaire housing
3, 3' Außenseite  3, 3 'outside
4 Vertiefung  4 deepening
5, 5' Grenzschicht  5, 5 'boundary layer
6 Öffnungsrand  6 opening edge
a, a' Dicke a, a 'thickness
d1, d2, d3 Durchmesser d1, d2, d3 diameter
h Hauptabstrahlrichtung h main radiation direction
1, 1' Länge  1, 1 'length
m Mittelachse m central axis
s Strömungsrichtung s flow direction
A Ausschnitt  A section
D TAV-Decke  D TAV cover
F OP-Feld  F OP field
T OP-Tisch  T operating table
V Verdrängungsströmung  V displacement flow
Z, Z' Unterdruckzone  Z, Z 'vacuum zone

Claims

Patentansprüche 1. Leuchte, insbesondere Operationsleuchte zur Verwendung in Räumen mit Decken (D) mit turbulenzarmer  1. Lamp, especially surgical light for use in rooms with ceilings (D) with low-turbulence
Verdrängungsströmung (V) TAV-Decken) , mit einem  Displacement flow (V) TAV ceilings), with a
Leuchtengehäuse (2, 2') und einer Hauptabstrahlrichtung h von mittels der Leuchte (1, 1') erzeugtem Licht, dadurch ge kenn z e i chnet , dass das  Luminaire housing (2, 2 ') and a Hauptabstrahlrichtung h of means of the lamp (1, 1') generated light, characterized ge kenn z e i chnet that the
Leuchtengehäuse (2) zur Verringerung eines Volumens einer Unterdruckzone (Z) der Verdrängungsströmung (V) in Strömungsrichtung (s) hinter dem Leuchtengehäuse (2) außenseitig eine Vielzahl von muldenartigen Vertiefungen (4) aufweist.  Luminaire housing (2) for reducing a volume of a negative pressure zone (Z) of the displacement flow (V) in the flow direction (s) behind the lamp housing (2) on the outside a plurality of trough-like depressions (4).
2. Leuchte nach Anspruch 1, dadur ch 2. Lamp according to claim 1, dadur ch
ge kenn z e i chnet , dass die Vertiefungen (4) an den Bereichen (3) der Außenseite des Leuchtengehäuses vorgesehen sind, die zumindest mit einer  ge kenn z e i chnet that the recesses (4) are provided at the areas (3) of the outside of the lamp housing, at least with a
Richtungskomponente entgegen der Hauptabstrahlrichtung (h) weisend oder senkrecht zu der Hauptabstrahlrichtung angeordnet sind.  Direction component opposite to the main emission direction (h) are arranged facing or perpendicular to the main emission.
3. Leuchte nach Anspruch 1 oder 2, dadurch 3. Lamp according to claim 1 or 2, characterized
ge kenn z e i chnet , dass die Vertiefungen (4) in einer sphärischen Symmetrie zueinander angeordnet sind ge kenneh zei that the recesses (4) are arranged in a spherical symmetry to each other
4. Leuchte nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Vertiefungen (4) symmetrisch zu der Hauptabstrahlungsrichtung (h) angeordnet sind. 4. Lamp according to one of claims 1 to 3, characterized in that the recesses (4) are arranged symmetrically to the main emission direction (h).
5. Leuchte nach einem der Ansprüche 1 bis 4, da du r c h g e ke nn z e i c h n e t , dass die Vertiefungen ( 4 ) gleich beabstandet zueinander oder aneinander angrenzend angeordnet sind. 5. Luminaire according to one of claims 1 to 4, since it is not only that the recesses (4) are equally spaced from each other or adjacent to each other.
6. Leuchte nach einem der Ansprüche 1 bis 5, da du r c h g e ke nn z e i c h n e t , dass die Vertiefungen (4 ) nach dem Prinzip einer maximalen Verteilungsdichte an der Außenseite (3} des Leuchtengehäuses (2) angeordnet sind. 6. Luminaire according to one of claims 1 to 5, characterized in that the recesses (4) are arranged according to the principle of a maximum distribution density on the outside (3) of the luminaire housing (2).
7. Leuchte nach einem der Ansprüche 1 bis 6, dadurch 7. Lamp according to one of claims 1 to 6, characterized
gekennzeichnet, dass die Vertiefungen (4) jeweils eine Öffnung mit einem runden, kreisrunden oder polygonen Öffnungsrand (6) aufweisen.  characterized in that the recesses (4) each have an opening with a round, circular or polygonal opening edge (6).
8. Leuchte nach einem der Ansprüche 1 bis 7, dadurch 8. Luminaire according to one of claims 1 to 7, characterized
gekennzeichnet, dass die Vertiefungen (4) jeweils einen kugelkalottenartigen Innenraum aufweisen.  characterized in that the recesses (4) each have a spherical cap-like interior.
9. Leuchte nach einem der Ansprüche 1 bis 8, dadurch 9. Luminaire according to one of claims 1 to 8, characterized
gekennzeichnet, dass das Leuchtengehäuse (2) eine kugelkalottenartige bis halbkugelartige Außenseite (3) oder eine kugelabschnittsartige Außenfläche (3) aufweist .  in that the luminaire housing (2) has a spherical cap-like to hemispherical outer side (3) or a spherical segment-like outer surface (3).
10. Leuchte nach einem der Ansprüche 1 bis 9, dadurch 10. Luminaire according to one of claims 1 to 9, characterized
gekennzeichnet, dass sie monoreflektorisch ausgebildet ist.  characterized in that it is formed monoreflector.
EP20120784544 2011-11-03 2012-10-30 Lamp, in particular an operation lamp Not-in-force EP2773306B1 (en)

Applications Claiming Priority (2)

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DE102011085728A DE102011085728A1 (en) 2011-11-03 2011-11-03 Light, especially surgical light
PCT/EP2012/071466 WO2013064490A1 (en) 2011-11-03 2012-10-30 Lamp, in particular an operation lamp

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EP (1) EP2773306B1 (en)
CN (1) CN103930083B (en)
DE (1) DE102011085728A1 (en)
WO (1) WO2013064490A1 (en)

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US20140293622A1 (en) 2014-10-02
CN103930083B (en) 2016-01-20
CN103930083A (en) 2014-07-16
DE102011085728A1 (en) 2013-05-08
WO2013064490A1 (en) 2013-05-10

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