EP3321571B1 - Dispositif d'éclairage de salle d'opération mono-réflecteur - Google Patents

Dispositif d'éclairage de salle d'opération mono-réflecteur Download PDF

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Publication number
EP3321571B1
EP3321571B1 EP17200537.3A EP17200537A EP3321571B1 EP 3321571 B1 EP3321571 B1 EP 3321571B1 EP 17200537 A EP17200537 A EP 17200537A EP 3321571 B1 EP3321571 B1 EP 3321571B1
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EP
European Patent Office
Prior art keywords
reflector
fixing
optical system
circuit board
light
Prior art date
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Active
Application number
EP17200537.3A
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German (de)
English (en)
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EP3321571A1 (fr
Inventor
Markus Bruchhage
Dominik Körling
Hermann Hauschulte
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Mizuho Corp
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Mizuho Corp
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Publication of EP3321571A1 publication Critical patent/EP3321571A1/fr
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • 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
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/02—Combinations of only two kinds of elements
    • F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
    • 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
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/04—Controlling the distribution of the light emitted by adjustment of elements by movement of reflectors
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/12—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by screwing
    • 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
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • 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
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F21V19/0015—Fastening arrangements intended to retain light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
    • F21V29/89—Metals
    • 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
    • F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
    • F21V3/06—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material
    • F21V3/061—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material the material being glass
    • 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
    • F21V5/00—Refractors for light sources
    • F21V5/007—Array of lenses or refractors for a cluster of light sources, e.g. for arrangement of multiple light sources in one plane
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/0008—Reflectors for light sources providing for indirect lighting
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/0025—Combination of two or more reflectors for a single light source
    • F21V7/0033—Combination of two or more reflectors for a single light source with successive reflections from one reflector to the next or following
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/06—Optical design with parabolic curvature
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the invention relates to a mono-reflector operating room light (OP light), comprising a housing upper part that is dome-shaped, hood-shaped, or shell-shaped at least in sections, with a housing top that faces upwards in the installed position and a housing inner side that faces downwards, which is preferably designed as an aluminum die-cast body , an LED light source arranged on the inside of the housing upper part for generating a luminous flux radiating in a primary light direction, which hits a deflecting reflector arranged in a radiation direction in front of the LED light source, which in turn directs the luminous flux back onto a main reflector arranged in the upper housing part, which directs the luminous flux through a light exit opening in the upper part of the housing, which is sealed with a cover plate, to illuminate a visual task.
  • the cover disk is arranged on a lower support or attachment edge.
  • Mono-reflector surgical lights comprising a centrally arranged light source with an optical system arranged in front of it in the direction of radiation, offer improved depth illumination of a wound, in contrast to so-called multi-field lights with several light fields mounted around a central holder and pivoted to this holder for focusing the OP and therefore require less readjustment than multi-field lights.
  • Such a mono-reflector surgical light has the advantage of a particularly high depth of illumination, i.e. a relatively high area around the area of the maximum luminance, in which at least 60 percent of this maximum luminance is achieved in order to be able to see the wound during an operation without loss of light and readjustment or adjustment. to illuminate the focus.
  • the mono-reflector operating room lights known from the prior art comprise a dome-shaped or bowl-shaped upper housing part, on the inside of which a retaining flange is mounted at the upper apex, to which a light module that widens conically in the direction of radiation is fastened and is accommodated in the upper housing part and extends from the top to the bottom.
  • This light module comprises an LED circuit board with several LEDs arranged in a grid, attached directly to the retaining flange that acts as a heat sink, as well as a hollow pyramidal module housing that encloses this LED circuit board and widens conically downwards in the direction of radiation, on the inner surface of which several reflectors are arranged.
  • a saddle-shaped or pointed deflection reflector is arranged at the lower end of the surgical light.
  • Such a light module is, for example, the ITOS SL module from OSRAM.
  • Such a light module represents an integral complete module, which includes the LED circuit board and several reflectors in the surrounding housing at the top end. At the same time, this essentially determines the overall height of the operating room light, because the mono-reflector operating room light must be at least as large as the longitudinal direction of the module housing in order to be able to accommodate it.
  • individual assemblies When assembling such mono-reflector lights, individual assemblies must first be preassembled and then these assemblies must be finally assembled to form the operating room light. The assemblies must be turned over and handled several times will.
  • a first assembly is the lower glass ring in the installed position, with the glass pane closing the light exit opening and the main reflector, essentially designed as a parabolic ring segment, with an opening at the top for inserting the light module.
  • a second assembly is the upper part of the housing, also known as the "hood”, with the light module attached to it on the inside. This light module is inserted into the inverted, bowl-shaped upper part of the housing and screwed to the retaining flange provided on the inside of the upper part of the housing. The upper part of the housing is then rotated 180 degrees together with the light module and inserted from above into the opening on the top of the main reflector, which is then inserted onto the lower glass ring with the cover plate accommodated. Finally, the upper part of the case and the lower glass ring are screwed together at a point of separation and sealed with a seal on the outside.
  • Generic mono-reflector surgical lights are from the DE 10 2012 201 706 A1 the applicant and the CN 104 100 878 A famous.
  • Other types of surgical lights are from the DE 20 2013 006 570 U1 , WO 87/00603 A1 , DE 25 35 556 A1 , WO 2013/000639 A2 such as US 4,600,979A famous.
  • a generic lamp is also from the U.S. 2010/0254128 A1 famous.
  • the assemblies have to be assembled and then the assemblies to form the surgical light have to be connected to one another and aligned with one another.
  • the individual assemblies must be turned over several times, which is expensive.
  • the overall height of these known surgical lights is relatively high, mainly due to the light module, so that they are relatively large and heavy.
  • the object of the invention is to at least partially avoid these disadvantages and in particular to provide a monoreflector surgical light that is more compact and easier to assemble.
  • the invention relates to a mono-reflector surgical light having the features of claim 1.
  • the upper housing part is designed in one piece, which extends without interruption from an upper end to a lower end to form a closed reference system.
  • the housing upper part has, on the inside of the housing, a fastening plane that serves as a reference plane for the components of the optical system.
  • the optical system comprises at least one LED circuit board, an attachment optics for light guidance of the luminous flux generated by the at least one LED circuit board, and preferably also an aperture designed essentially as a hollow cylinder, which encloses or borders the LED circuit board and the attachment optics on the outside in the installed position .
  • the LED circuit board, the attachment optics and the optional screen can be mounted or mounted as parts of the optical system on the mounting level.
  • several attachment points spaced apart from the reference plane can be provided on other attachment planes for other components of the optical system, in particular for the main reflector. Due to this design, the upper part of the housing forms a self-contained reference system, which guarantees the optically optimal alignment or arrangement of the components in the optical target position during assembly.
  • the reference system is thus formed by the attachment plane, which forms the zero point or reference point of the reference system, and several attachment points spaced apart from it on other attachment planes for components of the optical system, It is of course also possible to attach components of the optical system that build on one another on the attachment level, such as the LED circuit board, an attachment optics and a screen preferably enclosing these two first components.
  • a module housing is no longer required, so that the space required for this and in particular the height of the luminaire are no longer required, which expands the scope for design in terms of both technology and design.
  • the overall height of the surgical light according to the invention can be reduced by about a quarter to a third compared to existing mono-reflector surgical lights.
  • the aforementioned ITOS module from the prior art requires mirrors arranged on the side of the module housing as reflection surfaces for bundling the light in the desired light direction, but essentially requires the predefined overall height through the housing of the module. According to the invention, this housing is no longer necessary because the collimator lenses focus the light emitted by the LEDs in the main beam direction.
  • the assembly of the lamp is significantly simplified by the inventive design.
  • the one-piece, preferably shell-shaped luminaire housing must be placed on a base with the luminaire housing top facing downwards and the light exit opening facing upwards. Then all the necessary components can be attached to the inside, based on the attachment or assembly level, which thus serves as a reference level for the optical system.
  • a particular aspect of the invention lies in the design of the attachment level as a reference level for the optical system comprising the LED circuit board, attachment optics and preferably the aperture as well as the deflection reflector, the main reflector and the cover plate, which optimizes the assembly and the alignment to one another to achieve an optical system thus simplified and by the inventive one-piece design of the Housing is only possible because not several housing parts next to the optical systems must be assembled and aligned with each other.
  • fastening means can also be provided at a corresponding distance from the fastening plane for fastening the diaphragm and/or the main reflector and other components of the optical system.
  • fastening means preferably define the further fastening planes arranged at specified distances from the fastening plane for fastening the main reflector and further optical components in the respective optical desired position.
  • the main reflector can, for example, comprise fastening lugs which protrude radially from the peripheral edge and which lie on a corresponding further fastening plane and can be fastened in this desired optical position, e.g. B. by means of screws.
  • This additional level of attachment for the main reflector can, for. B. offset against the direction of radiation upwards at a lower bearing or mounting edge for the cover plate, z. B. in the form of recesses into which engage the fastening tabs of the main reflector and rest.
  • fastening domes or supports for the support of the cover plate are provided, which are also formed over an outer edge of the upper part of the housing that is offset relative to the light exit plane and are also formed for fastening the main reflector.
  • these fastening domes which are designed in the shape of supports or rods and are spaced apart from one another, extend beyond a plane defined by the outer edge of the upper part of the housing.
  • these attachment domes include supports which form the further attachment level for attachment of the main reflector.
  • the fastening domes preferably comprise pockets or recesses radially on the inside, into which fastening lugs projecting radially outwards at the lower light exit end of the main reflector can be inserted in the installation position and fixed in position there.
  • These fastening domes can therefore include receptacles designed to receive or fasten the main reflector.
  • the lower light exit end of the main reflector comprises fastening lugs protruding outwards from the outer edge, which are seated in these receptacles of the fastening domes and are screwed there.
  • these recordings which are preferably offset downwards from the plane of attachment for the cover pane, also form part of the optical reference system.
  • the housing upper part thus extends from its preferably closed upper end to the downwardly open lower end which defines the light exit plane, this lower end being formed by fastening domes which protrude beyond the actual outer edge of the housing upper part for supporting the cover plate.
  • this attachment plane is preferably formed on the inside of the housing in the area of this crest point and thus extends transversely to the central vertical axis of rotation or optical axis of the OP -Lamp.
  • the fastening plane is preferably designed or optimized as a cooling surface in order to realize the highest possible heat dissipation and thus the heat absorption caused by the upper housing part, which also functions as a heat sink.
  • the fastening plane is not designed to be continuously closed, but has a large number of ribs, grooves and depressions, which are preferably arranged symmetrically, in particular comprising several ring-shaped concentrically widening outwards from a center point and with their upper edges the fastening plane defining ring surfaces, each with a radius that increases safely from the center point, and recesses or open spaces formed in between.
  • the annular surfaces formed can be crossed by webs, for example webs which extend through the center and cross the concentrically widening circular rings.
  • the fastening plane formed in this way is particularly preferably formed in one piece on the upper part of the housing.
  • the cover pane and the main reflector were mounted in an under-glass ring and were therefore often not optimally aligned with the optical system mounted in the upper part and had to be aligned in a complex manner, which required specialist personnel.
  • all the components are arranged in the upper part of the housing and are therefore automatically optimally aligned optically by the reference system.
  • the under-glass ring only functions to center the cover pane and is therefore completely independent of the optical system of the surgical light.
  • the cover pane preferably has an etched surface with a special degree of gloss in order to implement a diffuse light transition.
  • This separating plane between the cover disk and the housing preferably extends in a plane along the outer peripheral edge of the upper housing part, which is arranged at the bottom in the installed position, which also simplifies the assembly.
  • an optical attachment comprising at least one collimator lens is preferably arranged, which focuses or bundles the light emitted by the associated LED according to the visual task to be realized to form the luminous flux.
  • At least one centering means is preferably provided between the two joining partners, ie the LED circuit board on the one hand and the attachment optics on the other hand, to further simplify assembly.
  • a centering means is understood to be a device which aligns the front optics centered in front of the LED circuit board so that the one or more optics, in particular designed as at least one lens, particularly preferably at least one collimator lens, is correctly positioned along the respective optical axis of the associated LED.
  • position fixing means are also provided, i.e. means which, in addition to the centering, also ensure the arrangement of the attachment optics at the correct mounting angle in front of the LED circuit board and fix them so that the at least one lens provided on the attachment optics along the optical Axis of an associated LED is aligned.
  • centering and/or position fixing means can either be designed as additional components or, which is preferred, can be provided in one piece on the joining partners (optical attachment and LED circuit board).
  • the LED board comprises a plurality of individual LEDs arranged in a regular pattern on the board and the front optics comprise a plurality of individual lenses associated with the individual LEDs , which must therefore be correctly aligned along the respective optical axis in the installation position.
  • centering and/or position-fixing means as pins which engage in openings on the respective joining partner in the installed position is preferred and particularly simple.
  • the solution according to the invention is particularly easy to install because the individual components are designed to be self-centering through these centering and position-fixing means, and thus the individual components of the optical system, i.e. the LED circuit board arranged on the fastening level, the front optics or lens and the aperture are centering means are designed for relative alignment along the optical axis, ie, for example, a centering, which the correct axial alignment, and / or an angular adjustment, which the correct angular alignment of the individual components to each other during assembly and / or repair guarantee.
  • the housing upper part thus forms a one-piece, continuous reference system, as a result of which particularly low tolerances will occur in the overall system, but in any case significantly lower tolerance chains than in the prior art with several housing parts assembled together.
  • the centering means preferably comprise a centering pin formed centrally between the LED circuit board and the front optics, and the position fixing means comprise a plurality of positioning pins spaced apart from this. In the case of an attachment optics with several lenses, these positioning pins ensure that the individual lenses are correctly seated above the LEDs on the LED circuit board that are assigned to them.
  • a particularly good light control in the primary light or main beam direction onto the deflection reflector is achieved by arranging a screen around the LED circuit board and front optics (lens or lens arrangement comprising several lenses, particularly preferably designed as at least one collimator lens) in the direction of radiation.
  • a particularly good avoidance of undesired lateral stray light is realized in that this screen is non-reflecting, at least on the inside.
  • the panel is preferably made of a black material and is in particular designed as a plastic injection molded part.
  • the screen not only serves to guide the light, but is also designed to absorb scattered light by enclosing the LED circuit board and the front optics in a circumferential manner.
  • a particularly good avoidance of this scattered light is achieved by a rough design of the material at least on the inside of the panel facing the LED circuit board, with which diffuse light scattering is realized. Without this screen, there is the slight possibility of individual light rays escaping into the main reflector, which can cause undesired lighting effects in the illumination field generated.
  • This panel is preferably designed essentially as a hollow cylinder, which holds the LED circuit board and the attachment optics in the installed position encloses extensively or on the outside.
  • the screen is preferably designed to press the attachment optics onto the LED circuit board in the installed position. This can preferably be done, for example, by a shoulder, edge or the like formed on the inside of the diaphragm, which is geometrically adapted to rest against an outer edge of the collimator lens, so that the diaphragm rests with this shoulder on the upper side on the outer edge of the collimator lens and thus against the LED circuit board pressed.
  • This screen directs the luminous flux generated along the optical axis in the main beam direction, without forming scattered light, onto the deflecting reflector arranged in front of it in the cover pane in the beam direction.
  • This deflection reflector is preferably adjustable in height via a focusing unit, e.g. comprising a linear gear. The light is directed upwards again by this deflection reflector, ie against the main beam direction onto the main reflector which annularly surrounds the central vertical axis or main beam direction and is accommodated in the upper part of the housing.
  • This main reflector has a reflector surface which is adapted to the application and the visual task to be implemented and which preferably comprises a number of individual reflector surfaces.
  • a facet structure which is preferably regularly distributed on the surface of the main reflector and which can also be configured differently in different zones has proven to be particularly expedient.
  • honeycomb structure with individual reflection surfaces that are directly adjacent to one another or at a distance from one another with other geometrically designed reflection areas, eg a ring structure and/or corrugated structure with concentrically widening ring sections on the main reflector.
  • the at least one LED circuit board attached to the mounting level, the attachment optics arranged in front of it in the direction of radiation and the screen preferably enclosing these two components form the LED module, which can be completely customized and configured and which has an overall height of 50 to 100 mm, in particular 68 mm, is significantly lower than existing LED modules.
  • a further simplification of the assembly can be achieved in that a position fixation is provided between the upper part of the housing and the main reflector, which is an axial and / or rotational arrangement in relation to each other in precise alignment of the main reflector to the assembly plane with the LED module and the housing allows.
  • This position fixing preferably includes projections which engage in corresponding grooves. Projections on the radial outer edge of the main reflector, which can be inserted into recesses in the hood or the upper part of the housing, are particularly preferred.
  • a further simplification of assembly can be achieved by providing an adjustment between the upper part of the housing and the lower glass ring holding the cover pane, which acts during assembly, preferably comprising complementary acting bevels, which slide off during assembly or only with the respective counterpart and thus after screwing in the fastening means Realize a press fit between the joining partners.
  • these joining partners can be designed to fix the cover plate in position, in order to position it precisely in the middle and to hold it circumferentially.
  • the cover pane is also aligned with the reference system and is only fixed in the desired position by the ring underneath the glass.
  • the main reflector preferably has at least one position fixation, particularly preferably comprising laterally protruding lugs, which are referenced in terms of height to the mounting plane of the upper housing part.
  • the upper part of the housing has receptacles or indentations at a defined distance from the mounting plane for receiving them in the installed position.
  • the cover plate which closes the light exit opening, is also held in the mono-reflector surgical light according to the invention by a lower glass ring, which encompasses the outer edge of the cover plate on the underside in the installed position.
  • the lower glass ring preferably comprises a support or holding flange, which forms a support surface for the cover pane and from which an outer edge extends upwards transversely to the plane of this support surface, which can be connected to the upper part of the housing.
  • the lower glass ring is thus designed as a lower part of the housing, which adjoins the upper part of the housing on the underside and forms a harmonious unit with the upper part of the housing.
  • the upper part of the housing which also functions as a heat sink, is preferably made of metal, preferably in the form of a die-cast aluminum body, in order to achieve a desired high heat absorption capacity. Such metal body must be in the manufacture be demouldable, which limits the design freedom with regard to the formation of complex geometries, especially those with undercuts.
  • a plurality of handles which are arranged at a distance from one another and with which the surgical light can be adjusted, are preferably provided circumferentially around the light exit plane or the lower edge of the upper part of the housing.
  • the lower glass ring does not have to be made of metal, but can, for example, have plastic or consist entirely of it, e.g. comprising a PUR foam. This opens up particularly wide design and cost potentials.
  • a seal is preferably provided between the cover disk and the support flange, which particularly preferably comprises foamed-in sealing elements or O-rings seated in corresponding receiving grooves.
  • one or more sealing elements are provided which are radially spaced apart from one another from the central axis of the lamp.
  • a tongue and groove connection with a further seal is preferably provided on an upper fastening end of the outer edge of the lower glass ring that can be connected to the upper part of the housing, so that the mono-reflector surgical light has two sealing levels offset in height from one another, namely a first - lower - sealing level between the cover plate and the support flange of the lower glass ring and a second - upper - at the connection point of the outer edge with the upper part of the housing.
  • the interior sealing surfaces make it particularly easy to clean the lamp in the sterile operating room environment.
  • This multi-stage sealing system is particularly advantageous for the realization of higher protection classes, in this case in particular IP54.
  • On the lower glass ring is to simplify assembly or correct placement of the lower glass ring on the upper part of the housing and correct Alignment of the cover plate is provided with a position-fixing means, which in particular comprises several circumferentially spaced stop bevels, against which the outer edge of the cover plate is derived in such a way that the cover plate is centered when the lower glass ring is completely placed on the upper part of the housing.
  • the invention relates to this extent independently of the mono-reflector operating room light (OP light) per se also a method for the particularly efficient, i.e.
  • the light housing according to the invention has its own reference system for the optically correct assembly and optically optimal alignment of the components in this reference system, i.e. in the target optical position, which almost completely rules out incorrect assembly.
  • a screen can be attached around the LED circuit board and the front optics, preferably also on or at the attachment level.
  • the LED circuit board of the front optics and the panel can be attached to the attachment level in one step.
  • an under-glass ring can be fastened to the cover pane, which has an edge that surrounds the cover pane in the installed position and that preferably completely surrounds the cover pane.
  • This lower glass ring can also include stop bevels acting on the inside against the outer edge of the cover pane for fixing the cover pane in the desired position.
  • the lower glass ring can include sealing means for connection to the upper part of the housing, with a two-stage design of the sealing means preferably being implemented, ie a seal in two different levels for realizing higher degrees of protection of IP54 and higher.
  • connection In the context of this description, the terms “connected”, “connected” and “integrated” are used to describe both a direct and an indirect connection, a direct or indirect connection and a direct or indirect integration.
  • connection In the figures, identical or similar elements are provided with identical reference symbols, insofar as this is appropriate.
  • the figure 1 shows a longitudinal section of a mono-reflector operating room light known from the prior art.
  • This consists essentially of an upper housing top part 2, a lower lower glass ring 4, an essentially parabolic main reflector 6, a light module 10 attached to a heat sink 8 on the inside of the housing top part 2, a cover plate 12 for closing the lower light exit surface and a light exit surface in this arranged linear gear 14 on the top of a roof or saddle-shaped deflection reflector 16 is arranged adjustable in height.
  • a plug-in coupling 18 is provided laterally in the lower glass ring 4, with which the operating room light can be fastened to a linkage (not shown).
  • figure 2 shows a longitudinal section through a monoreflector surgical light according to the invention.
  • This also essentially comprises a bowl-shaped housing upper part 18, an annular main reflector 19 surrounding the center with the vertically extending optical axis, a lower glass ring 20, a cover plate 22 and a height-adjustable via a linear gear 24 and located in the center of the cover plate 22 recorded deflection reflector 26.
  • the upper housing part is designed as a trough-shaped, one-piece die-cast aluminum housing and includes a housing top with an upper vertex 18.1 from which it extends with a uniform curvature to the light exit surface on which the cover plate 22 is arranged.
  • the linear gear 14 with the pointed or saddle-shaped deflection reflector is in the center of the cover plate, ie aligned with the optical central axis in the main beam direction of the light 26 attached.
  • the fastening plane 18.2 is formed parallel to and offset upwards from the cover plate 22 is.
  • the upper light entry opening of the main reflector 19 is almost immediately adjacent to the attachment plane 18.2 or is located close to it, which means that the overall height is reduced according to the invention by a quarter to a third compared to the prior art becomes particularly clear.
  • the cover 32 which is made of black plastic as a plastic injection molded part, has an inner shoulder at its upper end, which in the installed position rests against the outer edge of the collimator lens 30 and the LED circuit board 28 and together encompasses them on the outside, where the cover is screwed or latched to the fastening level 18.2 is.
  • the figure 3 shows the surgical light during assembly, i.e. in the assembly position, with the shell-shaped upper housing part 18 being arranged on a non-illustrated surface, in a holder or the like with the upper side of the upper housing part 18 facing downwards and then the individual components based on the Reference level serving attachment level 18.2 are used in the upper housing part 18, in the present case the LED circuit board 28 and the collimator lens 30 are already mounted on the attachment level 18.2.
  • the panel 32, the LED circuit board 28 and the collimator lens 30 are screwed to the mounting plane 18.2, then the main reflector 19 is inserted and with six evenly spaced on a circle, in figure 3 upwardly directed, but arranged below in the installed position, outwardly protruding mounting brackets 19.1 in recordings 18.4, which on a total of six on the inside of the upper part of the housing on a circle evenly from each other spaced and extending to the light exit opening mounting domes 18.3 are used and screwed to these mounting domes 18.3.
  • One of these mounting domes 18.3 is enlarged in the figure 6 shown.
  • this includes the receptacle 18.4 in the middle, which is offset downwards from the plane of the light exit surface formed by the support for the cover pane 22.
  • the main reflector 19 has a circumferential outer flange 19.2 and includes recesses so that it can be placed on the fastening domes 18.3.
  • the rotatable handle may further include a central camera encased by a rotatable sleeve, with which an operation may be filmed.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Claims (13)

  1. Dispositif d'éclairage de salle d'opération à monoréflecteur, comprenant une partie supérieure de boîtier (18) présentant, au moins en partie, une forme de dôme ou de capot et comprenant de préférence de l'aluminium, et comportant un luminaire agencé dans ladite partie supérieure de boîtier, lequel est conçu sous la forme d'un luminaire à LED comprenant au moins une platine à LED (28) pour produire un flux lumineux rayonnant le long d'un axe optique en direction d'un système optique situé en aval dans le sens du rayonnement et comprenant un réflecteur déviateur (26) qui est réglable et présente en outre une surface réfléchissante primaire destinée à réfléchir le flux lumineux vers un réflecteur principal (19) qui est également agencé dans ladite partie supérieure de boîtier et qui dirige alors le flux lumineux à travers une ouverture de sortie de lumière de la partie supérieure de boîtier (18), laquelle ouverture est fermée par un opercule circulaire (22), afin d'éclairer une cible visuelle, ledit opercule circulaire étant agencé sur un bord inférieur d'appui ou de fixation, ladite partie supérieure de boîtier (18) étant conçue d'une seule pièce et s'étendant de manière ininterrompue depuis une extrémité supérieure qui est orientée vers le haut en position installée jusqu'à une extrémité inférieure qui définit l'ouverture de sortie de lumière et qui est fermée par l'opercule circulaire (22) pour former un système de référence lui-même fermé ; ladite partie supérieure de boîtier (18) présentant, sur un côté intérieur, un plan de fixation (18.2) destiné au système optique et servant de plan de référence, ledit système optique comprenant au moins une platine à LED (28) et une tête optique (30), ladite platine à LED (28) et ladite tête optique (30) étant agencées, en tant que composants du système optique, sur le plan de fixation (18.2), des points de fixation situés à une certaine distance du plan de référence et destinés à des constituants du système optique étant prévus, ledit système de référence présentant en outre un plan de fixation destiné à la fixation du réflecteur principal (19),
    CARACTÉRISÉ EN CE QUE le plan de fixation destiné au réflecteur principal (19) est conçu sur des dômes de fixation (18.3) mutuellement espacés de manière circonférentielle, en ce que les dômes de fixation (18.3) font saillie par rapport à un bord extérieur de la partie supérieure de boîtier (18) qui est en décalage par rapport au plan de sortie de lumière, en ce que les dômes de fixation (18.3) comprennent des appuis qui font partie du système de référence et qui constituent un plan de fixation permettant de fixer le réflecteur principal (19) et en ce que les dômes de fixation (18.3) sont conçus pour que vienne s'y appuyer l'opercule circulaire (22).
  2. Dispositif d'éclairage de salle d'opération à monoréflecteur selon la revendication 1, CARACTÉRISÉ EN CE QUE le plan de fixation destiné au réflecteur principal (19) est conçu en décalage de la surface d'appui destinée à l'opercule circulaire (22).
  3. Dispositif d'éclairage de salle d'opération à monoréflecteur selon la revendication 1 ou 2, CARACTÉRISÉ EN CE QUE la platine à LED (28) comprend plusieurs LED et la tête optique comprend une lentille associée à chacune desdites LED.
  4. Dispositif d'éclairage de salle d'opération à monoréflecteur selon la revendication 1 à 3, CARACTÉRISÉ EN CE QU'il est conçu au moins un élément de centrage et/ou au moins un élément de fixation en position entre la platine à LED (28) et la tête optique (30), grâce auxquels la platine à LED (28) et la tête optique (30) peuvent être reliées l'une à l'autre dans une position optique voulue.
  5. Dispositif d'éclairage de salle d'opération à monoréflecteur selon la revendication 4, CARACTÉRISÉ EN CE QUE l'élément de centrage et/ou de fixation en position comprennent une tige dans une première pièce coopérante et une cavité coopérant avec ladite tige, en position installée, dans une seconde pièce coopérante.
  6. Dispositif d'éclairage de salle d'opération à monoréflecteur selon l'une quelconque des revendications précédentes, CARACTÉRISÉ EN CE QUE le système optique comprend un obturateur (32) de conception essentiellement cylindrique creuse qui circonscrit ou entoure sur l'extérieur ladite au moins une platine à LED (28) et ladite tête optique (30), en position installée.
  7. Dispositif d'éclairage de salle d'opération à monoréflecteur selon la revendication 5, CARACTÉRISÉ EN CE QUE l'obturateur (32) est conçu en outre pour empêcher la lumière diffuse entre la platine à LED (28) et la tête optique (30).
  8. Dispositif d'éclairage de salle d'opération à monoréflecteur selon l'une quelconque des revendications précédentes, CARACTÉRISÉ EN CE QUE l'obturateur (32) est conçu pour forcer la tête optique contre la platine à LED, en position installée.
  9. Dispositif d'éclairage de salle d'opération à monoréflecteur selon la revendication 7, CARACTÉRISÉ EN CE QUE l'obturateur comprend un épaulement interne complémentaire d'un bord extérieur de la tête optique (30).
  10. Dispositif d'éclairage de salle d'opération à monoréflecteur selon l'une quelconque des revendications précédentes, CARACTÉRISÉ EN CE QUE le plan de fixation (18.1) est conçu sous la forme d'un corps de refroidissement.
  11. Procédé d'assemblage d'un dispositif d'éclairage de salle d'opération à monoréflecteur selon l'une quelconque des revendications de dispositif précédentes, comprenant les étapes de procédé suivantes consistant à : poser une partie supérieure de boîtier (18.1) formant un système de référence et s'étendant, d'une seule pièce, depuis une face supérieure de boîtier orientée vers le haut en position installée mais vers le bas en position d'assemblage jusqu'à une ouverture de sortie de lumière fermée par un opercule circulaire, laquelle partie supérieure de boîtier comprenant une face intérieure de boîtier dotée d'un plan de fixation (18.2) et orientée vers le bas en position installée et vers le haut en position d'assemblage, lequel plan de fixation a fonction de point de référence du système de référence pour un système optique ; fixer un luminaire comprenant une platine à LED (28) permettant de produire un flux lumineux rayonnant dans une direction d'éclairage primaire vers le plan de fixation (18.2) ; agencer une tête optique (30) sur la platine à LED (28) ; agencer un réflecteur principal (19) sur des appuis présents dans un plan de fixation, dans la partie supérieure de boîtier (18), destiné au réflecteur principal (19), lesquels appuis sont conçus sur des dômes de fixation (18.3) mutuellement espacés de manière circonférentielle et faisant saille par rapport à un bord extérieur de la partie supérieure de boîtier (18) qui est en décalage par rapport au plan de sortie de lumière ; et agencer, sur les dômes de fixation de la partie supérieure de boîtier (18), un opercule circulaire (22) comportant un réflecteur déviateur (26) qui est réglable en hauteur au moyen d'une transmission linéaire (14) afin de focaliser le dispositif d'éclairage de salle d'opération à monoréflecteur.
  12. Procédé d'assemblage selon la revendication 11, CARACTÉRISÉ EN CE QUE le système optique comprend un obturateur qui, après la pose de la platine à LED (28) et de la tête optique (30), est monté sur le plan de fixation (18.2) en renfermant ces dernières.
  13. Procédé d'assemblage selon l'une des revendications de procédé précédentes, CARACTÉRISÉ EN CE QU'un anneau de verre inférieur (20) est monté sur l'opercule circulaire (22) et la partie supérieure de boîtier (18).
EP17200537.3A 2016-11-11 2017-11-08 Dispositif d'éclairage de salle d'opération mono-réflecteur Active EP3321571B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016121689.5A DE102016121689A1 (de) 2016-11-11 2016-11-11 Monoreflektor-Operationsraumleuchte

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EP3321571B1 true EP3321571B1 (fr) 2022-05-04

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EP (1) EP3321571B1 (fr)
JP (1) JP6491726B2 (fr)
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DE102016121689A1 (de) * 2016-11-11 2018-05-17 Trilux Medical Gmbh & Co. Kg Monoreflektor-Operationsraumleuchte
JP7541995B2 (ja) * 2019-03-21 2024-08-29 シグニファイ ホールディング ビー ヴィ 調節可能な光源ホルダ、方向付け可能なスポットライト、及び前記調節可能な光源ホルダの製造方法
US11898720B2 (en) * 2020-01-15 2024-02-13 Man-D-Tec, Inc. Downlight fixture housing fabrication
EP4350210A1 (fr) * 2022-10-04 2024-04-10 Baxter Medical Systems GmbH + Co. KG Ensemble d'éclairage chirurgical
JP2024056248A (ja) * 2022-10-11 2024-04-23 株式会社ジャパンディスプレイ 照明装置

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DE102016121689A1 (de) 2018-05-17
CN108071976A (zh) 2018-05-25
CN108071976B (zh) 2021-01-26
JP6491726B2 (ja) 2019-03-27
US20180135834A1 (en) 2018-05-17
JP2018078107A (ja) 2018-05-17
EP3321571A1 (fr) 2018-05-16
US10648646B2 (en) 2020-05-12

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