EP2092233B2 - Lampe d'examen médical ou d'intervention chirurgicale - Google Patents

Lampe d'examen médical ou d'intervention chirurgicale Download PDF

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Publication number
EP2092233B2
EP2092233B2 EP07846754.5A EP07846754A EP2092233B2 EP 2092233 B2 EP2092233 B2 EP 2092233B2 EP 07846754 A EP07846754 A EP 07846754A EP 2092233 B2 EP2092233 B2 EP 2092233B2
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EP
European Patent Office
Prior art keywords
light
light sources
lamp
examination
sources
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Application number
EP07846754.5A
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German (de)
English (en)
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EP2092233A1 (fr
EP2092233B1 (fr
Inventor
Joachim Strölin
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Karl Leibinger Medizintechnik GmbH and Co KG
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Karl Leibinger Medizintechnik GmbH and Co KG
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • 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 present invention relates to a surgical and examination light.
  • Surgical or examination lights are used in the medical field, e.g. to illuminate the surgical site or the area to be examined. It is necessary to change the light field generated by the lamp and / or to focus it differently in order to adapt the light field to the specific needs during the operation or examination.
  • the illuminant is shifted within the reflector on the optical axis of the overall system, which results in an enlargement or reduction of the resulting light field.
  • the light from each individual headlight is concentrated in one point in order to achieve a small light field.
  • the light field is enlarged by irradiating a larger field by mechanically pivoting and realigning the individual lights. In this case, a partial overlap of the light field of each individual headlight is achieved, so that a large light field with a lower light intensity results.
  • Operating lights with multiple light sources are, for example, from the EP 1 722 157 A1 , of the US 2004/0129860 A1 and the DE 10 2006 004 995 A1 known.
  • the light sources consists of several LEDs arranged adjacent to one another, with optical components being assigned to groups of several LEDs.
  • the object of the present invention is therefore to provide a surgical or examination lamp which overcomes the disadvantages of the prior art and in particular enables simple and easy-to-use, inexpensive and space-saving adjustment or focusing of the light field.
  • a surgical or examination light according to claim 1.
  • This comprises at least one first and at least one second light source, which have a common optical system.
  • a control unit is provided which can control the brightness of the first light source separately from the brightness of the second light source and which, by controlling the brightness of the first or second light source differently, adjusts the shape and / or differently focusses the from the surgical or Examination light generated overall light field causes.
  • the complex mechanical components and the associated problems described above can thus be dispensed with, since the focusing or setting of the light field can be changed without any movable elements simply by setting the brightness of the first and second light sources.
  • such a control is therefore noiseless, wear-free, maintenance-free and without delay.
  • Such an optical system can e.g. B. a lens, a reflector, a prism or a mixture of the above components or based on a mixture of the optical function of the above components.
  • the individual light fields generated by the light sources are aligned in different directions and / or the brightness maxima of the individual light fields generated by the light sources are shifted relative to one another. Different light fields can be generated through the different orientations of the individual light cones.
  • the surgical and examination light comprises two or more first light sources and two or more second light sources.
  • the individual light fields generated by a plurality of first or second light sources then form a partial light field. This enables improved illumination or a more uniform light field and also greater flexibility in adjusting or focusing the light field.
  • Individual light sources of lower power can also be used, which has structural and price advantages.
  • this advantageously applies to the light fields generated by the first and second light sources, so that the overall light field can be changed or focused by setting the respective brightnesses of these light fields.
  • the ones generated within the first light sources are different Individual light fields advantageously also aligned in different directions or have brightness maxima that are shifted relative to one another.
  • the individual light fields of a group of light sources, which are shifted relative to one another, thus jointly generate a larger partial light field.
  • the partial light field generated by the first light sources is more strongly focused than the partial light field generated by the second light sources. So it is with the surgical or examination light according to the invention, for. B. by switching on only the first light sources possible to obtain a strongly focused light field, while by switching on only the second light sources, a larger, less focused light field can be generated. In a preferred embodiment, any desired mixtures of the partial light fields generated by the first or second light sources are also possible.
  • the individual light sources already have different individual light fields with different focussing.
  • both a plurality of first and a plurality of second light sources are used.
  • the different partial light fields are advantageously achieved in that the individual light fields of the first light sources overlap more strongly than the individual light fields of the second light sources.
  • the arrangement can be selected so that the brightness maxima of the first light sources are closer to the optical central axis of the operating or examination lamp than the brightness maxima of the individual light fields generated by the second light sources.
  • the optical system according to the invention advantageously has no moving parts. This has the considerable advantages already discussed above over the prior art. Furthermore, the system of light sources also advantageously has no moving parts. In particular, advantageously neither the light sources nor the common optical system have moving parts, so that a compact and wear-free Luminaire module from common optics and light sources without moving parts results.
  • the light sources are advantageously rigidly aligned in the surgical or examination light according to the invention. Adjustability of the light sources in the prior art is no longer necessary, since the focusing can be controlled via the brightness of the individual light sources and thus electrically. This in turn results in the advantages described above.
  • the light sources of the surgical or examination light according to the invention are advantageously formed by LEDs. These are maintenance-free, extremely durable and also energy-saving. Precisely because a large number of individual light sources are advantageously used in the present invention, the luminous intensity of each individual light source no longer has to be as high as in operating or examination lights according to the prior art, so that the use of LEDs is particularly useful . LEDs also generate less waste heat, which is a great advantage, especially with operating or examination lights. Very space-saving constructions are also possible through LEDs, especially in combination with the arrangement according to the invention without moving elements. Of course, other light sources such. B. plasma light sources, halogen or gas discharge lamps can be used.
  • a particularly preferred embodiment of the surgical or examination light according to the invention comprises at least two light modules which each have at least a first and a second light source and advantageously a common optical system.
  • the surgical light advantageously consists of a large number of such light modules, since in this way the formation of shadows that is not desired in surgical lights can be avoided.
  • the use of several light modules makes it possible to choose a design that is just as compact as it is inexpensive.
  • the first and second light sources of each light module advantageously share a common optical system, so that a very cost-effective solution has also been found here.
  • the light cones generated by the first and the second light source of the light modules are advantageously oriented in different directions. This is advantageously done in that the first and the second light source offset from one another behind the common optical system, for. B. a lens, so that the offset arrangement of the light sources behind the optical system automatically results in different orientations of the light cones generated by the light sources.
  • a focused total light field can be generated by the first light sources, while the second light sources illuminate a larger total light field.
  • the at least two light modules are advantageously oriented differently.
  • the desired partial light fields can be generated in this way.
  • several identically constructed light modules are used in the surgical or examination light according to the invention. This reduces the costs, since a large number of light modules can be produced, which are then arranged next to one another.
  • the light modules also have no moving parts, so that the result is a construction that is as compact as it is wear-free.
  • At least six and even more advantageously eight light sources or at least three and even more advantageously four light modules are used in the surgical light according to the invention to avoid shadow formation.
  • shadows can be avoided and, on the other hand, a large number of small light sources can be used, which is particularly advantageous when using LEDs.
  • the individual light fields of the individual light sources advantageously at least partially overlap and thus generate larger light fields with uniform brightness.
  • the surgical or examination lights according to the invention also advantageously have a third light source or two or more third light sources, the brightness of which is controlled separately from that of the first light source can be. This results in even greater flexibility when focusing or adjusting the overall light field.
  • the brightness of the light sources is advantageously controlled electrically or electronically. In this way, very user-friendly surgical or examination lights can be made possible. A noiseless, wear-free, maintenance-free and delay-free control of the light sources is also possible.
  • the brightness of the light sources can be adjusted in several steps or continuously, preferably between 0% and 100%.
  • Such a stepwise or stepless mixing of the partial light fields generated by the first and second light sources also enables stepless focusing and / or adjustment of the overall light field.
  • the first and second light sources are each controlled jointly. This results in a particularly simple control, which nevertheless allows the focusing of the lamp to be set as desired.
  • the present invention can also change the shape of the light field in order to adapt it to specific needs, e.g. during an operation.
  • the present invention therefore also comprises, in a second variant, an operation or examination lamp in which the total light field generated by the operation or examination lamp is adjusted between oval and essentially round by controlling the brightness of the first and second light sources differently.
  • an operation or examination lamp in which the total light field generated by the operation or examination lamp is adjusted between oval and essentially round by controlling the brightness of the first and second light sources differently.
  • the surgical or examination light according to the invention can be used without moving parts would have to be provided to switch back and forth between an oval and a substantially round light field.
  • the overall oval light field is advantageously generated by superimposing at least two individual light fields.
  • the individual light field of a single light source is usually essentially round, which is due to the axially symmetrical optics that are usually used.
  • more than two light sources can also be used to generate the overall oval light field.
  • the surgical or examination light according to the invention comprises at least two first light sources, which together generate an oval light field, and at least two second light sources, which also together generate an oval light field, the essentially round light field being generated by superimposing the oval light fields becomes.
  • the longer diameters of the two oval light fields are advantageously perpendicular to one another.
  • a first oval light field can be generated by switching on only the first light sources and a second oval light field, the longitudinal axis of which is advantageously perpendicular to the longitudinal axis of the first light field, can be generated by switching on only the second light sources.
  • an essentially round light field is again produced.
  • the two oval light fields advantageously have the same center point, so that the two oval light fields and the essentially round light field are all aligned in the same direction. In this way, the shape of the light field can be distributed without changing its alignment.
  • the operating or examination light of the present invention advantageously has four light sources arranged on the corners of a square, the two first and the two second light sources each being diagonally opposite one another. This results in an arrangement in a simple manner with which two oval light fields standing perpendicular to one another and a common, substantially round overall light field can be provided by the corresponding control of the first and the second light sources.
  • the respective first or the respective second light sources are activated together.
  • the present invention also advantageously comprises a surgical or examination lamp in which the light sources form a light module with a common optical system.
  • the light sources can be two or more LEDs which have a common lens and / or a common reflector.
  • two first and two second light sources which are arranged on the corners of a rectangle, can have a common optical system.
  • the light sources are advantageously arranged on a common circuit board. This also results in a compact and easy-to-manufacture arrangement of a light module.
  • the operating or examination light of the present invention furthermore advantageously comprises at least two first and / or at least two second light sources, the two first and / or the two second light sources being at the same distance from the optical axis of the common optical system. If the two first and / or two second light sources generate a common light field, this results in a symmetrical arrangement of the light field around the optical axis of the common optical system.
  • the at least one and the at least one second light source are also advantageously at the same distance from the optical axis of the common optical system.
  • the individual light fields generated by the first and second light sources are aligned identically relative to the optical axis.
  • the present invention therefore further comprises a luminaire having one or more of the features described above.
  • Figures 1 a and 1b show a first embodiment of a light module (30) according to the invention, which has a first light source (1) and a second light source (2). These are arranged offset next to one another on a base plate and have a common optic (3). This consists z. B. from a lens or a combination of lenses.
  • FIG 1 a the beam path of the first light source (1) is now shown. This generates a single light field (11) of the first light source (1), the maximum (21) of which is shifted to the left against the optical central axis (10) of the optics (3) or the light unit (30).
  • the beam path of the second light source (2) is shown, which generates a light field (12) whose maximum (22) is shifted to the right relative to the optical central axis (10).
  • the first light source (1) and the second light source (2) generate individual light fields (11) and (12), the brightness maxima of which are shifted relative to one another. These two individual light fields (11) and (12) are also aligned in different directions.
  • Figure 3 shows the first embodiment of the light module (30) again in a sectional view through the line AA in Figure 1 a.
  • the light sources (1) and (2) are LEDs, which are advantageously used in the present invention. These LEDs both emit white light and are constructed identically.
  • Figures 4a and 4b is now the inventive surgical or Examination light shown, which consists of several light modules (30, 31, 32 and 33), as shown in Figures 1 to 3 has been shown.
  • Essentially identical light modules are used, but their optical alignment is rotated relative to one another.
  • the individual light sources of the light units are arranged differently so that the individual light fields (11) of the first light sources (1) or the light fields (12) of the second light sources (2) are aligned differently from light module to light module.
  • the individual light fields (11) or (12) of the multiple light modules thus overlap to form a partial light field (41) or (42).
  • the partial superimposition of the individual light fields (11) generated by the first light sources (1) generates a partial light field (41) which is strongly focused. This is achieved in that the superimposition area in which the individual individual Overlay light fields (11) is relatively large, so that the size of the partial light field (41) is not significantly larger than that of the individual light fields (11). This results in a strongly focused, very bright and small light spot.
  • the different partial light fields (41) and (42) are achieved in that the individual light fields of the first light sources (1) overlap more strongly than the individual light fields (12) of the second light sources (2).
  • the arrangement is chosen so that the brightness maxima of the first light sources (1) are closer to the optical central axis of the operating or examination lamp than the brightness maxima of the individual light fields (12) generated by the second light sources (2).
  • the first and second light sources can each be controlled separately by the control unit, not shown, of the surgical or examination light. So it is possible through different controls the brightness of the first and second light sources to adjust or differently focus the total light field generated by the surgical or examination lamp, which is formed by the superposition of the partial light fields (41) or (42).
  • Moving parts can be completely dispensed with, as this focusing is made possible simply by the different control of the brightness of the individual light sources.
  • the individual light sources are also rigidly aligned with one another, so that they can no longer be moved.
  • the first and the second light source are each integrated in a light module and have a common optical system.
  • This enables a construction that is as economical as it is space-saving.
  • a large number of similar light modules can be placed next to one another, with only the arrangement of the first and the second light source being rotated from module to module in order to align the light cones of the individual light sources in different directions. In this case, considerably more individual light modules or light sources are possible than in the exemplary embodiment.
  • relatively weak light sources can be used for the individual light source, the uniformity of the partial or total light fields formed by the superimposition of the individual light fields being improved and the formation of shadows being reduced.
  • FIG. 5 is also shown how the superimposition of the individual light fields the first and second light source of a light module according to the first embodiment, as shown in FIG Figures 1 to 3 has been described, results in an oval overall light field.
  • the light module has a first light source L1 and a second light source L2, which are arranged next to one another on a circuit board and have a common optical system 3, in this case a common lens.
  • the two light sources L1 and L2 are at the same distance from the optical axis 10 of the optical system 3.
  • the light fields from the light source L1 and the light source L2 have, as shown, an essentially round shape which is only slightly distorted into an oval due to the distance between the light sources and the optical axis of the optical system.
  • the superimposition of the two light fields results in a clearly oval light field, so that an oval light field can be generated by simultaneously switching on the first and second light source, whereas an essentially round light field can be produced by switching on the first or second light source individually.
  • the essentially round light fields and the overall oval light field each have different orientations.
  • FIG. 6 a second embodiment according to the present invention is now shown, in which an oval or essentially round overall light field can also be generated by a different control of the brightness of the first and second light sources.
  • the light module according to the invention has two first light sources L1 and L3 and two second light sources L2 and L4, which are connected to a common optical system 3, e.g. B. are equipped with a lens or a reflector.
  • the two first light sources L1 and L3 jointly generate an oval light field, the longer diameter of which is 61 in Figure 6 runs from bottom left to top right.
  • the second light sources L2 and L4 also jointly generate an oval light field whose longer diameter 62 in Figure 6 runs from top left to bottom right.
  • the longer diameters of the light fields generated by the first and second light sources are thus perpendicular to one another. If, on the other hand, both the first and the second light sources are switched on, an essentially round light field results, which results from the superposition of the individual light fields of all light sources.
  • Requires z the surgeon can use an oval light field to illuminate an oval area by switching on either the first light sources L1 and L3 or the second light sources L2 and L4 to create oval light fields with an alignment shifted by 90 degrees and thus the shape and alignment of the light field optimally adapt to the area to be illuminated. If, on the other hand, a round light field is required, both the first and the second light sources are switched on.
  • the four light sources are arranged on the corners of a square, the two first and the two second light sources each being diagonally opposite one another.
  • the light sources are also arranged on a common circuit board and have a common optical system, so that an extremely compact system results.
  • This arrangement also ensures that the two first and the two second light sources each have the same distance from the optical axis of the common optical system, so that the oval light fields generated by the first and second light sources each have a central axis that coincides with the Central axis of the common optical system coincides.
  • the first and the second light sources are each at the same distance from the optical axis of the common optical system, so that the oval light fields generated in each case have identical light fields except for a 90 ° rotation of the longer diameter.
  • the superposition of the two oval light fields results in a particularly uniform, essentially round light field.
  • the light sources L1 to L4 are also LEDs in the second exemplary embodiment, which are ideally suited for this application, since they result in a compact and maintenance-free lamp which emits only little heat.
  • FIG Figure 6 it is also possible according to the invention to incorporate further light sources in a light module, as shown in FIG Figure 6 is shown to integrate so as to shape the to further influence individual light fields which can be generated by the light module and / or to increase the brightness of the light module.

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

Claims (9)

  1. Lampe pour examen médical ou bloc opératoire, comportant au moins une première et au moins une deuxième source lumineuse (1, 2) qui comportent un système optique (3) commun, et
    une unité de commande, qui permet de commander la luminosité de la première source lumineuse (1) séparément de la luminosité de la deuxième source lumineuse (2) et qui, en raison de la commande différente de la luminosité de la première et de la deuxième source lumineuse (1, 2), engendre un réglage de la forme et/ou une focalisation différente du champ lumineux total généré par la lampe pour examen médical ou bloc opératoire, dans laquelle les champs lumineux individuels (11, 12), générés par les sources lumineuses (1, 2), sont dirigés dans des directions différentes et/ou les maxima de luminosité (21, 22) des champs lumineux individuels (11, 12), générés par les sources lumineuses (1, 2), sont décalés l'un par rapport à l'autre,
    dans laquelle, sous l'effet d'une commande différente de la luminosité des premières et deuxièmes sources lumineuses (1, 2), le champ lumineux total généré par la lampe pour examen médical ou bloc opératoire est réglé entre un champ de forme ovale et un champ de forme sensiblement ronde, avec au moins deux premières sources lumineuses (1) qui génèrent conjointement un champ lumineux ovale, et au moins deux deuxièmes sources lumineuses (2) qui génèrent conjointement un champ lumineux ovale, le champ lumineux sensiblement rond étant généré par une superposition des champs lumineux ovales,
    ou dans laquelle la lampe pour examen médical ou bloc opératoire comporte deux ou plusieurs premières sources lumineuses (1) et deux ou plusieurs deuxièmes sources lumineuses (2), le champ lumineux partiel (41), généré par les premières sources lumineuses (1), étant focalisé plus fortement que le champ lumineux partiel (42) généré par les deuxièmes sources lumineuses (2), les premières et les deuxièmes sources lumineuses étant commandées respectivement conjointement, la luminosité des sources lumineuses pouvant être réglée en plusieurs étapes ou en continu.
  2. Lampe pour examen médical ou bloc opératoire selon la revendication 1, dans laquelle le système optique (3) et/ou le système des sources lumineuses (1, 2) ne comportent pas de pièces mobiles.
  3. Lampe pour examen médical ou bloc opératoire selon l'une quelconque des revendications précédentes, dans laquelle les sources lumineuses (1, 2) sont orientées de manière rigide.
  4. Lampe pour examen médical ou bloc opératoire selon l'une quelconque des revendications précédentes, dans laquelle les sources lumineuses (1, 2) sont formées par des DEL.
  5. Lampe pour examen médical ou bloc opératoire selon l'une quelconque des revendications précédentes, comportant deux ou plusieurs modules d'éclairage (30, 31, 32, 33), qui comportent chacun au moins une première et une deuxième source lumineuse (1, 2) et un système optique (3) commun, dans laquelle les cônes lumineux, générés par la première et la deuxième source lumineuse (1, 2) des modules d'éclairage (30, 31, 32, 33), sont orientés dans des directions différentes, et/ou dans laquelle les au moins deux modules d'éclairage (30, 31, 32, 33) sont orientés différemment.
  6. Lampe pour examen médical ou bloc opératoire selon la revendication 5, dans laquelle sont utilisés plusieurs modules d'éclairage (30, 31, 32, 33) de structure identique et/ou dans laquelle les modules d'éclairage (30, 31, 32, 33) ne comportent pas de pièces mobiles.
  7. Lampe pour examen médical ou bloc opératoire selon l'une quelconque des revendications précédentes, comportant au moins une troisième source lumineuse ou au moins deux ou plusieurs troisièmes sources lumineuses, la luminosité des troisièmes sources lumineuses pouvant être commandée séparément de celle des premières et des deuxièmes sources lumineuses (1, 2).
  8. Lampe pour examen médical ou bloc opératoire selon l'une quelconque des revendications précédentes, comportant quatre sources lumineuses disposées sur les angles d'un carré, les deux premières sources lumineuses (1) et les deux deuxièmes sources lumineuses (2) étant respectivement disposées en étant diamétralement opposées.
  9. Lampe pour examen médical ou bloc opératoire selon l'une quelconque des revendications précédentes, comportant au moins une première source lumineuse (1) et/ou au moins une deuxième source lumineuse (2), ladite au moins une première source lumineuse (1) et/ou ladite au moins une deuxième source lumineuse (2) étant situées à la même distance de l'axe optique (10) d'un système optique (3) commun.
EP07846754.5A 2006-11-24 2007-11-22 Lampe d'examen médical ou d'intervention chirurgicale Active EP2092233B2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE202006017914 2006-11-24
DE202007015823U DE202007015823U1 (de) 2006-11-24 2007-11-13 Operations- oder Untersuchungsleuchte
PCT/EP2007/010152 WO2008061767A1 (fr) 2006-11-24 2007-11-22 Lampe d'examen médical ou d'intervention chirurgicale

Publications (3)

Publication Number Publication Date
EP2092233A1 EP2092233A1 (fr) 2009-08-26
EP2092233B1 EP2092233B1 (fr) 2012-01-11
EP2092233B2 true EP2092233B2 (fr) 2021-04-07

Family

ID=39104330

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07846754.5A Active EP2092233B2 (fr) 2006-11-24 2007-11-22 Lampe d'examen médical ou d'intervention chirurgicale

Country Status (5)

Country Link
EP (1) EP2092233B2 (fr)
AT (1) ATE541158T1 (fr)
DE (1) DE202007015823U1 (fr)
ES (1) ES2378903T5 (fr)
WO (1) WO2008061767A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH701854A1 (fr) * 2009-09-17 2011-03-31 Pasan Sa Dispositif d'éclairage pour l'obtention d'un champ uniformément éclairé.
CN104819403A (zh) * 2014-10-22 2015-08-05 深圳市科曼医疗设备有限公司 手术灯的照明组件、手术灯及手术灯光斑调节方法
DE102015113337A1 (de) * 2015-08-13 2017-02-16 Karl Leibinger Medizintechnik Gmbh & Co. Kg Operationsleuchte mit veränderbarer Lichtfeldgeometrie
CN112314059B (zh) * 2018-06-25 2023-10-20 昕诺飞控股有限公司 照明系统和照明方法
CN110529760A (zh) * 2019-08-22 2019-12-03 南通大学 一种无影灯led环形光源及其散热结构的制作方法

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Publication number Priority date Publication date Assignee Title
EP0890059B1 (fr) † 1997-01-23 2004-06-23 Koninklijke Philips Electronics N.V. Luminaire

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FR2849160B1 (fr) * 2002-12-24 2005-03-18 Alm Dispositif d'eclairage et son utilisation
DE102006004995A1 (de) * 2005-02-01 2006-10-19 Schott Ag Leuchte für zahnärztliche oder chirurgische Verwendung
DE502005002660D1 (de) * 2005-05-14 2008-03-13 Trumpf Kreuzer Med Sys Gmbh Operationsleuchte mit zonenweiser Intensitätssteuerung

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Publication number Priority date Publication date Assignee Title
EP0890059B1 (fr) † 1997-01-23 2004-06-23 Koninklijke Philips Electronics N.V. Luminaire

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DE202007015823U1 (de) 2008-03-27
ATE541158T1 (de) 2012-01-15
ES2378903T5 (es) 2021-11-04
EP2092233A1 (fr) 2009-08-26
ES2378903T3 (es) 2012-04-18
WO2008061767A1 (fr) 2008-05-29
EP2092233B1 (fr) 2012-01-11

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