CN203190217U - Operation lighting device with LEDs - Google Patents

Operation lighting device with LEDs Download PDF

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Publication number
CN203190217U
CN203190217U CN2013201557564U CN201320155756U CN203190217U CN 203190217 U CN203190217 U CN 203190217U CN 2013201557564 U CN2013201557564 U CN 2013201557564U CN 201320155756 U CN201320155756 U CN 201320155756U CN 203190217 U CN203190217 U CN 203190217U
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China
Prior art keywords
led
lighting device
colour temperature
optical fiber
outlet
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CN2013201557564U
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Chinese (zh)
Inventor
C·瓦尔特奥
S·比利昂
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Maquet SAS
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Maquet SAS
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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
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • F21S8/046—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures having multiple lighting devices, e.g. connected to a common ceiling base
    • 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
    • F21V33/0064—Health, life-saving or fire-fighting equipment
    • F21V33/0068—Medical equipment
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/06—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/30—Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/36—Image-producing devices or illumination devices not otherwise provided for
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/30—Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure
    • A61B2090/306—Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure using optical fibres
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/30—Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure
    • A61B2090/309—Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure using white 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
    • F21V2200/00—Use of light guides, e.g. fibre optic devices, in lighting devices or systems
    • F21V2200/10—Use of light guides, e.g. fibre optic devices, in lighting devices or systems of light guides of the optical fibres type
    • 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
    • F21V2200/00—Use of light guides, e.g. fibre optic devices, in lighting devices or systems
    • F21V2200/10—Use of light guides, e.g. fibre optic devices, in lighting devices or systems of light guides of the optical fibres type
    • F21V2200/13—Use of light guides, e.g. fibre optic devices, in lighting devices or systems of light guides of the optical fibres type the light being emitted at the end of the guide
    • 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
    • F21Y2113/00—Combination of light sources
    • F21Y2113/10—Combination of light sources of different colours
    • F21Y2113/13—Combination of light sources of different colours comprising an assembly of point-like light sources
    • 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]
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0005—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being of the fibre type
    • G02B6/0006—Coupling light into the fibre
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0005—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being of the fibre type
    • G02B6/0008—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being of the fibre type the light being emitted at the end of the fibre
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/04—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings formed by bundles of fibres

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Veterinary Medicine (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Public Health (AREA)
  • Optics & Photonics (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • General Engineering & Computer Science (AREA)
  • Biophysics (AREA)
  • Radiology & Medical Imaging (AREA)
  • General Physics & Mathematics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

Provided is an operation lighting device with LEDs. The operation lighting device with the LEDs and optical fibers comprises a first LED (11a), a second LED (11b), fiber optical harnesses (13) and power supply devices (17a and 17b). The first LED (11a) is used for emitting white light with first color temperature, the second LED (11b) is used for emitting white light with second color temperature different from the first color temperature, the fiber optical harnesses (13) are used for transmitting the light generated by the first LED and the second LED to lighting outlets (20), and the power supply devices (17a and 17b) are suitable for supplying power for the LEDs (11a and 11b) with different currents. Therefore, power currents of the LEDs (11a and 11b) are changed, and the lighting outlets (20) are suitable for generating white light with adjustable color temperature within the range from the first color temperature to the second color temperature.

Description

A kind of operation lighting device that uses LED
Technical field
The utility model includes the lighting device of LED and optical fiber, relates in particular to the device for irradiation medical operating district.
Background technology
In medical conditions, especially in operating room, lighting condition need be adjusted, so that surgeon or doctor can correctly work.
Especially, illumination must make the surgeon distinguish between various different tissues.For this purpose, common white-light illuminating must meet various various criterions, and provides and provide the colour rendering index (CRI) that is positioned at 85 to 100 scopes and be positioned at 3000 Kai Erwen (K) to the light of the colour temperature of 6700K scope.
More precisely, the term of light " colour temperature " is used to refer at this, in the chromatic diagram of International Commission on Illumination (CIE), chromaticity coordinate (x, y) basic the going up by the evaluated equivalent colour temperature of ways customary of light.
In addition, good illumination must allow the surgeon to change colour temperature, in order to make it to adapt to requirement.
At present, existing various dissimilar lighting devices satisfy those requirements by mixed white light and colourama, in order to obtain the white light of variable color temperature.
By ways customary, from light source, as, luminous flux from light emitting diode (LED), be defined as the luminous power (representing with lumen) of described light source emission, and the vision of lighting device irradiation in illuminated district, be defined as the amount of luminous flux in this illuminated district of illumination of per unit area (to represent the lux, that is, with every square metre lumen (lm/m 2) expression).
Especially, patent documentation US 6 513 962 discloses a kind of aforesaid lighting device, and wherein two light sources are used, that is, and and the Halogen lamp LED of emission white light and the LED of red-emitting.In the document, these two light sources are coupled to the optical fiber that is connected with fiber waveguide, and the effect of this fiber waveguide is that white light is evenly mixed in suitable ratio with ruddiness, to obtain the white light of good quality.However, the colour temperature of this matching requirements irradiates light is measured, in order to regulate the ratio of white light and ruddiness, and its enforcement is very complicated.
Also have lighting device to use a plurality of white light LEDs and color LED, as light source, each LED is coupled to Optical devices, in order to assemble illuminated district, and is formed with the source of the white light of adjustable color temperature together as green glow or red-light LED.However, utilize such device, be difficult to obtain uniform illumination, and the irradiation of field of operation changes as the function of the colour temperature of being selected by the surgeon.In addition, the major defect that such lighting device exists is, when a part of irradiates light is blocked, when being stopped by surgical head, produces colored shade in field of operation.
In addition, it is aging faster than white light LEDs that the aging mode by variation of known LED depends on their color, especially red-light LED, thereby propose the time dependent problem of luminous flux of LED.
Patent documentation DE 10 2,006 040393 describes the example of so a kind of improved lighting device, and white light wherein and color LED are coupled to public condensing optical device condensing together, and this condensing optical device condensing makes the white light energy of good quality obtained for illumination.Fiber waveguide can be inserted between LED and the condensing optical device condensing, in order to improve color mix.However, the device of the type only partly reduces the formation of color shadow in illuminated district, does not overcome and the transformable aging problem that is associated as the LED of the function of color.
Summary of the invention
The purpose of this utility model, be for remedying all that shortcoming, a kind of lighting device of simplification is proposed, be suitably for surgeon or doctor good lighting condition is provided, especially uniformly irradiation, no matter selected colour temperature how, and be stable in time, can in field of operation, not cause color shadow.
The design of the utility model institute basis is a kind of lighting device, and two white light LEDs are arranged, and these two white light LEDs for example, except they provide different-colour, are identical.The optical fiber wire harness that two front end bundles are arranged is coupled to this two white light LEDs.This wire harness can be useful on the branch that sends from the light of white light LEDs, and the quantity of branch and diameter depend on this wire harness.Each branch is coupled to the illumination outlet, and this illumination outlet can be furnished with condensing optical device condensing, is used for making light converge to field of operation.In the outlet of wire harness, two kinds of white lights that produced by LED mix the acquisition white light, and can be by the suitable source current of each LED of adjusting with the colour temperature of adjustment outlet luminous flux.
Especially, the utility model provides the operation lighting device of a kind of LED of use thus, comprises a LED who is arranged to launch the white light that first colour temperature is arranged; Be arranged to launch the 2nd LED of the white light of second colour temperature that is different from described first colour temperature; And be fit to the supply unit of corresponding different electric currents to described LED power supply, it is characterized in that, described first and second LED are coupled to a plurality of illumination outlets of this lighting device by the optical fiber wire harness, this optical fiber wire harness has two front end bundles of optical fiber and a plurality of outlet bundles of optical fiber, these two optical fiber front end bundles are coupled to described first and second LED respectively, and described outlet bundle is coupled to described illumination outlet respectively, the described optical fiber of these two front end bundles is pressed even mode by interconnection in this wire harness, therefore each outlet bundle has the optical fiber from the same ratio of each front end bundle, thus by changing the corresponding electric current that described LED is powered, make each illumination outlet be fit to produce to have on from described first colour temperature to described second reference color temperature can controlled colour temperature white light.
According to lighting device of the present utility model, it is characterized in that described supply unit is the device that is arranged to change according to the air expansion bottle principle the corresponding electric current of delivering to described LED.
According to lighting device of the present utility model, it is characterized in that each LED has to be arranged in 3000K to the LED of the colour temperature of the scope of 6700K.
According to lighting device of the present utility model, it is characterized in that each LED is the LED with colour rendering index of 85 to 100 the scope of being arranged in.
According to lighting device of the present utility model, it is characterized in that each LED is the LED with colour rendering index of 90 to 100 the scope of being arranged in.
Utilize this layout, in the illumination outlet, obtain to provide on the whole reference color temperature white light of uniform irradiation easily, and if occur stopping in illuminated district, also do not have color shadow to be formed in the luminous flux thus.In addition, no longer include because the LED of different colours is aging result differently the time dependent any problem of luminous flux.
In addition, LED can be positioned in away from illumination outlet, in order to obtain compatible between ceiling light and the luminous flux that needs in operating room.In addition, because by long range positioning, LED does not hinder surgical sight line, so the surgeon can utilize better general euphorosia.
Lighting device of the present utility model can advantageously provide following feature:
● described supply unit is arranged to according to air expansion bottle principle (communicating-vase principle), changes the corresponding electric current that is provided to LED, thereby when changing the colour temperature that exports from illumination, advantageously makes irradiation can keep constant;
● each LED has and is arranged in 3000K to the colour temperature of 6700K scope, and each LED can have and is positioned at 85 to 100 scopes, preferably is arranged in the colour rendering index of 90 to 100 scopes.
Description of drawings
Below reading, provide as unrestricted example and during the detailed description of embodiment illustrated in the accompanying drawings, the utility model can better be understood, and the appearance of other advantage, in the accompanying drawings:
● Fig. 1 is be used to throwing light on field of operation and comprise the diagram perspective drawing of the lighting apparatus of lighting device of the present utility model;
● Fig. 2 is the details drawing diagrammatic view of Fig. 1 lighting device; With
● Fig. 3 draws by the example of Fig. 2 LED illumination device electric current, in order to obtain various colour temperature in the illumination outlet.
The specific embodiment
Fig. 1 illumination of drawing is used for the lighting apparatus 1 of the field of operation 2 of irradiation, is the district that the surgeon is performing a surgical operation to patient herein.
Lighting apparatus 1 in this example is the type that hangs by ways customary from the ceiling of operating room, and as an example, it comprises that two radial types that respectively carry ceiling light 4 hang branches 3.As in Fig. 1 as seen, each lamp 4 can have a plurality of illuminations outlet, such as 20 of lighting device of the present utility model.
Fig. 2 is the careful diagrammatic view of the embodiment of the utility model lighting device 10.
In this example, lighting device 10 comprises two light sources, respectively comprises LED11a, the 11b of corresponding emission white light.These two LED11a and 11b are coupled to two front end bundle 15a, 15b of optical fiber in the optical fiber wire harness 13 respectively.LED11a, 11b can directly be pressed in the front end of wire harness 13, and perhaps they can pass through converging optical element 14a, 14b, and such as lens, prism, reflector, collimater and so on or their combination are coupled.From the past upstream of the front end of wire harness 13, each LED11a, 11b preferably for example use hot consistent lubricant to be connected to cooling radiator 12a, 12b.
Optical fiber among two front end bundle 15a, the 15b, in the body 16 of wire harness 13 by interconnection (that is, mix), in order to be distributed on a plurality of outlet bundles or in the branch 18 of optical fiber, these optical fiber for example pass through corresponding converging optical element, are coupled to corresponding illumination outlet 20.This optical element can be lens, prism, reflector, collimater and so on or their combination.
Therefore can see that wire harness 13 has two front end bundle 15a, 15b and a large amount of outlet bundle 18, as 32,64 outlet bundles 18.Should be appreciated that wire harness 13 can have hundreds of or thousands of optical fiber.The optical fiber of wire harness 13 is preferably made by glass, in order to help not have the good illumination efficient of decay in the ruddiness of the wire harness of optical fiber, the wire harness of this optical fiber can be quite long, but also reduces any risk that wire harness catches fire.In addition, for the more high efficiency of wire harness 13, the optical fiber of wire harness 13 by heat fused together, and preferably uses the big optical fiber of accepting the angle is arranged in wire harness 13, in order to reduce the wastage.
Interconnection or the mixing of optical fiber in wire harness 13, obtain the even distribution of optical fiber, therefore 18 optical fiber that have from the same ratio of two front end bundle 15a, each bundle of 15b are restrainted in each outlet, namely, the optical fiber of equal amount, half of this outlet bundle is from front end bundle 15a, and second half is from front end bundle 11b.
The interconnection that Fig. 2 draws optical fiber in the wire harness 13, this wire harness 13 defines two groups 19a, 19b of 16 outlet bundles 18 since two front end bundle 15a, 15b, for example, is used for the two parts that are assembled to two ceiling lights 4 or are assembled to ceiling light 4.
In the utility model, LED11a, 11b provide the power supply of different electric currents to be powered by separating type to LED11a and 11b by being arranged to.This supply unit can perhaps be pressed the form of two power supply 17a, 17b, as shown in Figure 2 by the form of single power supply.
In the utility model, the LED11a of first light source emission has the white light of first colour temperature, and the LED11b of secondary light source emission has the white light of second colour temperature that is different from first colour temperature.Therefore, white light exports 20 obtained from the illumination that middle colour temperature is arranged, this Neutral colour potential temperature is between first colour temperature and second colour temperature, and from the total light flux of illumination outlet 20, equal corresponding light flux sum from two LED11a, 11b add loss (in optical fiber, between the optical element of optical fiber and convergence during coupling, etc.).
Selected white light LEDs should have and is arranged in 85 to 100 scopes, preferably is arranged in 90 to 100 scopes, the perhaps high colour rendering index in 95 to 100 scope really, and colour temperature is arranged in 3000K to the scope of 6700K.As an example, LED11a can have the colour temperature of 3000K, and LED11b can have the colour temperature of 5000K.Like this when LED11a and 11b the two during by separately same current power supply, the irradiation of white light of the middle colour temperature of the 3900K that has an appointment is provided.
Preferably, LED11a and 11b are except their colour temperature, and it is upward identical to be chosen to be geometry, to avoid any other difference of luminous flux between LED11a and the 11b.Difference between the LED for example can be the component that is to form the phosphorus powder mixture of LED.Especially, preferably select the LED from same provider, for example, the LED that same package, identical electronic chip is arranged and require the power supply of same type.
Therefore can understand, lighting device 10 of the present utility model has only white light LEDs, thereby, if having obstacle to appear in the luminous flux in the outlet of lighting device, also guarantee not have color shadow can appear in the field of operation 2.
The fact that the utility model relies on is, depends on electric current by this LED from the luminous flux of LED.By changing the electric current that two LED11a and 11b are powered respectively, luminous flux from each LED11a and 11b can be changed, thereby can obtain have the light of middle colour temperature from illumination outlet 20, this centre colour temperature can be adjusted in the scope from first to second colour temperature of LED11a and 11b.
In the utility model, electric current to LED11a and 11b power supply is changed respectively, so that causing the corresponding light flux from LED11a and 11b changes according to the air expansion bottle principle, in other words, keep total light flux constant exactly, it is constant that the irradiation of field of operation 2 is kept, and changes the middle colour temperature from illumination outlet 20 simultaneously.Term " constant " is used to refer to that luminous flux is identical, reaches within the error 5%.
Therefore can understand, lighting device 10 of the present utility model makes luminous flux export on 20 obtained in illumination, this luminous flux is all even constant, and adularescent, the colour temperature that this white provides, by the corresponding electric current of appropriate change to LED11a and 11b power supply, can second colour temperature from first colour temperature of LED11a to LED11b be adjusted.
The figure of Fig. 3 shows, when in illumination outlet 20 by keeping the constant mode of total light flux, with different electric currents during to LED11a and 11b power supply, the various colour temperatures from the irradiates light of illumination outlet 20 of acquisition.Can see that from this figure the suitable electric current to these two LED11a and 11b power supply changes according to the air expansion bottle principle,, by complementation and vary in opposite ways, comprises little correction simultaneously that is.
The figure of Fig. 3 can export 20 spectrum that produce by throwing light on spectrometer measurement, and obtain by the colour temperature that the assessment illumination exports the light of 20 generations on the basis of this spectrum and by ways customary.Make the lighting device 10 can be to each colour temperature in the illumination outlet 20 like this, be calibrated with the source current of stipulating that provides to LED11a and 11b.
In Fig. 3, can see, utilization has LED11a and the 11b of the colour temperature of corresponding 5000K and 3000K, the colour temperature of luminous flux in the illumination outlet 20 is progressively changed, in this example, be arranged in about 200 milliamperes (mA) to LED11a and 11b of the electric current power supply of 900mA scope for using, colour temperature changes to about 4500K from about 3400K.
For example, when with about 200mA to the LED power supply that the 5000K colour temperature is arranged, and with about 900mA when the LED power supply of 3000K colour temperature is arranged, the colour temperature of about 3400K exports on 20 obtained in illumination, corresponding to export certain luminous flux of 20 from throwing light on.
As an example, in order to obtain the colour temperature of about 3800K from illumination outlet 20, keep simultaneously exporting 20 identical luminous fluxes from illumination, suitable way is, increase is arrived about 450mA to the electric current of the LED power supply that the 5000K colour temperature is arranged, and arrives about 600mA and reduce to the electric current of the LED power supply that the 3000K colour temperature is arranged.
In a kind of modification, can install for the sensor of measuring from the colour temperature of the light of illumination outlet 20, spectrometer for example is in order to make respectively electric current optimization to LED11a and 11b power supply.
Certainly, the utility model is not subjected to the restriction of one of above-described the utility model embodiment, and the utility model can stand the various modifications that therefore do not exceed the utility model scope.
As mentioned above, should be appreciated that LED11a and 11b can be away from the ceiling lights 4 that is used for irradiation field of operation 2, and for example can be positioned in outside the operating room, thereby be conducive to maintenance operation and the advantage of health aspect is arranged.Doing so also provides bigger advantage aspect temperature, because ceiling light 4 no longer contains thermal source, so its maintenance is cold, thereby improve the compatibility of the luminous flux that uses in lamp 4 and the operating room.
Change kind of a mode, the LED11a of lighting device 10 of the present utility model and 11b and wire harness 13 can entirely be positioned in the ceiling light 4, have avoided wire harness to pass through along hanging branch 3 thus.
Depend on the lighting power of available LED power and needs in market, one or more LED can be installed in each light source.(as 13 watts (W) or 41W), can reduce the size of electronic package, thereby economical and advantage ecology are provided if very high-power LED is used.
Do not exceed the scope of the utility model permission, wire harness 13 can also comprise front end bundle 15a, the 15b of bigger quantity, 2 multiple preferably, each front end Shu Youyi LED.So, advantageously can in the monomer 16 of wire harness 13, connect all front end bundle 15a, 15b.
The a plurality of wire harness 13 that are mounted to single ceiling light 4 can be provided equally.

Claims (5)

1. an operation lighting device (10) that uses LED comprising: a LED (11a) who is arranged to launch the white light that first colour temperature is arranged; Be arranged to launch the 2nd LED (11b) of the white light of second colour temperature that is different from described first colour temperature; And be suitable for corresponding different electric currents to described LED (11a, 11b) Gong Dian supply unit (17a, 17b), it is characterized in that, described first and second LED are coupled to a plurality of illumination outlets (20) of this lighting device by the optical fiber wire harness, this optical fiber wire harness has two front end bundle (15a of optical fiber, 15b) and a plurality of outlet bundles (18) of optical fiber, these two optical fiber front end bundle (15a, 15b) be coupled to the described first and second LED (11a respectively, 11b), and described outlet bundle is coupled to described illumination outlet respectively, the described optical fiber of these two front end bundles is pressed even mode by interconnection in this wire harness, therefore each outlet bundle (18) has the optical fiber from the same ratio of each front end bundle, thus by changing described LED (11a, the corresponding electric current that 11b) is powered, make each illumination outlet (20) be fit to produce to have on from described first colour temperature to described second reference color temperature can controlled colour temperature white light.
2. according to the lighting device (10) of claim 1, it is characterized in that described supply unit (17a, 17b) is the device that is arranged to change according to the air expansion bottle principle the corresponding electric current of delivering to described LED (11a, 11b).
3. according to the lighting device (10) of claim 1 or claim 2, it is characterized in that each LED (11a, 11b) has to be arranged in 3000K to the LED of the colour temperature of the scope of 6700K.
4. according to the lighting device (10) of claim 3, it is characterized in that each LED (11a, 11b) is the LED with colour rendering index of 85 to 100 the scope of being arranged in.
5. according to the lighting device (10) of claim 4, it is characterized in that each LED (11a, 11b) is the LED with colour rendering index of 90 to 100 the scope of being arranged in.
CN2013201557564U 2012-03-27 2013-03-27 Operation lighting device with LEDs Expired - Fee Related CN203190217U (en)

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JP3183914U (en) 2013-06-06
FR2988806B1 (en) 2015-06-26

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