WO2013000639A2 - Système d'éclairage - Google Patents

Système d'éclairage Download PDF

Info

Publication number
WO2013000639A2
WO2013000639A2 PCT/EP2012/059709 EP2012059709W WO2013000639A2 WO 2013000639 A2 WO2013000639 A2 WO 2013000639A2 EP 2012059709 W EP2012059709 W EP 2012059709W WO 2013000639 A2 WO2013000639 A2 WO 2013000639A2
Authority
WO
WIPO (PCT)
Prior art keywords
reflector
illuminating system
light
reflector assembly
collimating unit
Prior art date
Application number
PCT/EP2012/059709
Other languages
English (en)
Other versions
WO2013000639A3 (fr
Inventor
Jiaren MA
Xufeng OU
Haiqiang ZHONG
Original Assignee
Osram Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Osram Ag filed Critical Osram Ag
Publication of WO2013000639A2 publication Critical patent/WO2013000639A2/fr
Publication of WO2013000639A3 publication Critical patent/WO2013000639A3/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • 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
    • F21V7/0025—Combination of two or more reflectors for a single light source
    • 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
    • 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
    • F21W2131/202—Lighting for medical use for dentistry
    • 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]

Definitions

  • the present utility model relates to an illuminating system, and particularly, to a inspecting lamp applied to surgery, dental and medical treatment.
  • the present utility model provides an illuminating system, especially a medical inspecting lamp, that has a high color rendering index, good spot properties and a long lifetime, and also can provide a very good spectrum property.
  • the object of the present utility model is accomplished via an illuminating system, especially a medical inspecting lamp, through the following solution:
  • the illuminating system has a first reflector assembly, a lighting module fixed in the first reflector assembly, a collimating unit and a second re ⁇ flector provided in a light path in order, wherein light from a lighting module is adjusted by the collimating unit into parallel light beams and is projected on the second reflec- tor, the second reflector reflects the light onto the first reflector and then reflected by the first reflector onto an object to be illuminated.
  • the light from the lighting module firstly is adjusted by the collimating unit so as to obtain a kind of parallel light, that is to say, it is a light array that is output from the collimating unit, which advantageously assures formation of spot with hard edges on the object to be illuminated, such as an affected part of a patient. This is quite beneficial for a doctor to observe the affected part.
  • the collimating unit according to the present utility model still can mix colored light emitted from various light sources of the lighting module so as to obtain good spectrum properties of the mixed light, particu ⁇ larly a high color rendering index.
  • the first reflector assembly is rotationally symmetrical, thereby defining an optical axis.
  • the lighting module, the collimating unit, and the second reflector are located along the optical axis.
  • the collimating unit is configured as a tube.
  • An inner surface of the tube is configured as a mirror surface.
  • the light from the various light sources of the lighting module, after being totally reflected in the tube and color-mixed, is output from an output end of the tube in a form of parallel light, i.e. in a form of light array, to be further projected on the second reflector.
  • Such type of collimating unit has a low cost, which further reduces the cost of the entire sys ⁇ tem.
  • the collimating unit also may be configured as a total internal reflection type collimating lens.
  • Such type of collimating unit likewise may adjust the light into parallel light, and also has the function of mixing the light when the light sources of multiple colors or different spectral prop ⁇ erties are used.
  • the lighting module is an LED module that has a longer lifetime.
  • the LED module comprises an array of various LED chips. Mixing the light from the various LED chips enables better spectrum properties and, particularly, color rendering index than the other types of light sources.
  • the LED module comprises at least one LED chip emitting white light. As the LED chip itself can emit white light, requirements to the function of mixing the colored light of subsequent parts correspondingly will be lowered. This is beneficial to cost control of the illuminating sys- tern.
  • the LED module comprises at least one group of RGB (Red, Green, Blue) LED chips arranged in a pre ⁇ determined form.
  • White light results from mixing the colored light emitted by the RGB LED chips.
  • the white light having a predetermined color rendering index can be obtained by ar- ranging the RGB LED chips in a predetermined form, moreover, the spectrum properties of the light also may be adjusted thereby, which is quite advantageous for adjusting the illu ⁇ minating system according to practical requirements.
  • the first reflector has a metallic thermal transfer plate provided on an axial symmetrical center thereof, the lighting module is fixed on the metallic thermal transfer plate, and a heat radiator is fixed on the metallic thermal transfer plate.
  • the heat radiator comprises four metal rods extending from the thermal transfer plate into the space be ⁇ tween the inner reflector surface and the outer part of the reflector housing in a crosswise manner.
  • the distal ends of the rods are in thermal contact with heat blocks, the latter being in thermal contact with the reflector housing.
  • the rods may also be constructed as heat pipes.
  • the lighting module is an LED module
  • a printed cir ⁇ cuit board of the LED module is fixed directly on the metal ⁇ lic thermal transfer plate
  • the other surface of the me- tallic thermal transfer plate is fixed directly on the radia ⁇ tor, which shortens, to a large extent, a heat transfer path from the LED module to the radiator, and is quite advanta ⁇ geous for thermal dissipation, further prolonging the lifetime of the LED module and improving the lighting efficiency of the LED module.
  • the first reflector is configured as a parabolic re ⁇ flector, and a reflecting surface thereof consists of a plu ⁇ rality of facet reflecting surfaces. These facet reflecting surfaces reflect the light from the second reflector to the object to be illuminated, and mix the light at the same time.
  • the second reflector is configured as a taper rota- tionally symmetric with respect to an optical axis of the light. A top end of the taper is pointed to the light module, and a conical surface of the taper is configured as a mirror surface.
  • the light reflected onto the first reflector also has the same incident angle with respect to a reflecting surface of the first reflector, and further a spot with hard edges is pro ⁇ jected on the object to be illuminated.
  • the second reflector is held over the collimating unit by means of a supporting frame which is fixed directly on the first reflector. With the disposition of the supporting frame, the second reflector can be held on its position more steadily, so that in practice, a steady output of the light is assured.
  • the supporting frame has at least two supporting legs connected between the first reflector and the second re ⁇ flector.
  • the length of the supporting leg is adjustable.
  • the supporting legs are designed to be as thin as possible in the precondition of assuring steadiness, so that they will not block the light from the second reflector.
  • distance between the second reflector and the lighting module and the first reflector may be altered, so as to achieve the object of altering a spot size.
  • Fig. 1 is a perspective view of an illuminating system according to the present utility model with a first reflector assembly removed;
  • Fig. 2 is a cross-sectional view of an illuminating system according to the present utility model.
  • Fig. 1 is a perspective view of an illuminating system according to the present utility model with a first reflector assembly 1 removed. It can be seen from Fig. 1 that the illu- minating system comprises: a first reflector assembly 1 (see Fig. 2), a lighting module (not shown in the figure 1) configured as an LED module 2 (see Fig. 2), a collimating unit 3 configured as a tube (the collimating unit of course also may be configured as a total internal reflection type collimation lens) and a second reflector 4. Both of the LED module 2 and the collimating unit 3 are fixed on a metallic thermal trans ⁇ fer plate 8 which is arranged on an axial symmetrical center of the first reflector assembly 1.
  • a heat radiator 9 is at ⁇ tached to the metallic thermal transfer plate 8.
  • the heat ra- diator 9 comprises four metal rods extending from the metal ⁇ lic thermal transfer plate 8 into the space between the inner reflector surface and the outer part of the reflector housing in a crosswise manner. The distal ends of the rods are in thermal contact with heat blocks 10, the latter being in thermal contact with the reflector housing.
  • the rods are constructed as heat pipe. It can be seen from the figure that the LED module 2 is provided in the collimating unit 3.
  • the second reflector 4 is configured as a taper rotationally symmetric with respect to an optical axis of light and has its top end pointed to the LED module 2, and a conical surface 6 of the taper is configured as mirror surface.
  • the second reflector 4 is fixed over the collimating unit 3 by means of a supporting frame 7 (the second reflector 4 is fixed downstream of the collimat- ing unit 3 as viewed from a light path) .
  • the supporting frame 7 has a bearing ring 7b, a circular seat 7c and supporting legs 7a connected between the bearing ring 7b and the circu ⁇ lar seat 7c.
  • the second reflector 4 is fixed in the bearing ring 7b via a bolt or certainly in other manners, for in- stance, the second reflector 4 and the bearing ring 7b may be bonded or welded together.
  • the circular seat 7c also may be fixed on the metallic thermal transfer plate 8 via a bolt or in other manners, and the other surface of the metallic ther ⁇ mal transfer plate 8 is fixed directly on a radiator 9 that is not shown in Fig. 1.
  • the supporting legs 7a are spaced apart from each other at an interval of 120° on a circumference of the circular seat 7c.
  • the support ⁇ ing legs 7a are configured as sheet-type connecting beams that are designed to be as thin as possible so as not to block the light in the precondition of assuring fixedness.
  • the supporting leg 7a also may be configured to be other form, e.g. column shape.
  • a length of the supporting leg 7a is configured to be adjustable. Intervals between the second reflector 4 and the LED module 2 and the first reflector assembly 1 may be altered by adjusting the length of the supporting legs 7a so as to achieve the object of altering a spot size.
  • the second is a cross-sectional view of an illuminating system according to the present utility model.
  • the first reflector assembly 1 that is not shown in Fig. 1 can be seen from Fig. 2.
  • the first reflector assembly 1 is configured as a para- bolic reflector; a reflecting surface 5 thereof consists of a plurality of facet reflecting surfaces 5a.
  • Such type of re ⁇ flector has better reflecting effects and has the function of mixing the light.
  • the reflecting surface 5 of the first reflector assembly 1 also may be configured as a simple arc surface. It can be seen from the figure that the parts of the illuminating system shown in Fig. 1 are provided on the axial symmetrical center of the first reflector assembly 1.
  • the LED module 2 may comprise at least one LED chip emitting white light, also may comprise at least one group of RGB LED chips arranged in a predetermined form.
  • the LED module 2 constituted by the RGB LED chips the LED chips should be arranged in a prede ⁇ termined form so as to obtain output light having a predeter ⁇ mined color rendering index and spectrum properties.
  • the light from the LED module 2 goes into the collimating unit 3 configured as a tube, an in ⁇ ner surface of the tube is configured as a mirror surface, the collimating unit 3 mixes the light from the LED chips and adjusts the light into parallel light to be output towards the second reflector 4.
  • the second reflector 4 reflects light towards the first reflector assembly 1 and finally reflects the light by the first reflector assembly 1 to an object to be illuminated.
  • the present utility model may have various alterations and changes. Any alterations, equivalent substitutions, improvements, within the spirit and principle of the present utility model, should be covered in the protection scope of the present utility model.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

Le présent modèle d'utilité porte sur un système d'éclairage, lequel système est caractérisé en ce qu'il comprend un premier ensemble de réflecteur (1), un module d'éclairage fixé dans le premier ensemble de réflecteur (1), une unité de collimation (3) et un second réflecteur (4) disposés dans une trajectoire de lumière, dans cet ordre, une lumière venant du module de lumière étant ajustée par l'unité de collimation (3) sous la forme de faisceaux de lumière parallèles et étant projetée sur le second réflecteur (4), le second réflecteur (4) réfléchissant la lumière sur le premier ensemble de réflecteur (1), et celle-ci étant réfléchie par le premier ensemble de réflecteur (1) sur un objet à éclairer. Le système d'éclairage selon le présent modèle d'utilité a un indice de rendu des couleurs plus élevé, de bonnes propriétés d'éclairage ponctuel et une plus longue durée de vie, et peut également produire une très bonne propriété de spectre.
PCT/EP2012/059709 2011-06-29 2012-05-24 Système d'éclairage WO2013000639A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2011202259718U CN202302791U (zh) 2011-06-29 2011-06-29 照明系统
CN201120225971.8 2011-06-29

Publications (2)

Publication Number Publication Date
WO2013000639A2 true WO2013000639A2 (fr) 2013-01-03
WO2013000639A3 WO2013000639A3 (fr) 2013-03-07

Family

ID=46246049

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/059709 WO2013000639A2 (fr) 2011-06-29 2012-05-24 Système d'éclairage

Country Status (2)

Country Link
CN (1) CN202302791U (fr)
WO (1) WO2013000639A2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015062829A1 (fr) 2013-11-04 2015-05-07 Osram Gmbh Dispositif d'éclairage à générateur de lumière et collimateur
EP3321571A1 (fr) * 2016-11-11 2018-05-16 TRILUX Medical GmbH & Co. KG Dispositif d'éclairage de salle d'opération mono-réflecteur
CN113446540A (zh) * 2021-05-27 2021-09-28 东风电驱动系统有限公司 一种汽车仪表盘直下式照明灯箱及仪表组件

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103672447B (zh) * 2012-08-31 2018-04-27 深圳市海洋王照明工程有限公司 灯具
CN104565883A (zh) * 2013-10-12 2015-04-29 苏州欧普照明有限公司 一种照明灯具
TWI497171B (zh) * 2013-10-18 2015-08-21 Au Optronics Corp 背光模組
CN106871001B (zh) * 2015-12-11 2022-07-19 深圳市绎立锐光科技开发有限公司 一种光束灯装置

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DE3012340C2 (de) * 1980-03-29 1984-06-20 W.C. Heraeus Gmbh, 6450 Hanau Operationsleuchte
US5278731A (en) * 1992-09-10 1994-01-11 General Electric Company Fiber optic lighting system using conventional headlamp structures
DE10237575A1 (de) * 2002-08-15 2004-03-11 Olpe Jena Gmbh Anordnung zum Beleuchten eines dentalen Operationsfeldes
US8459852B2 (en) * 2007-10-05 2013-06-11 Dental Equipment, Llc LED-based dental exam lamp
DE102010041319A1 (de) * 2010-09-24 2012-03-29 Osram Ag Leuchtmodul für eine Leuchte, Leuchte und Verfahren zum Montieren eines Leuchtmoduls an einer Leuchte

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015062829A1 (fr) 2013-11-04 2015-05-07 Osram Gmbh Dispositif d'éclairage à générateur de lumière et collimateur
DE102013222352A1 (de) 2013-11-04 2015-05-07 Osram Gmbh Beleuchtungseinrichtung mit Lichtgenerator und Kollimator
EP3321571A1 (fr) * 2016-11-11 2018-05-16 TRILUX Medical GmbH & Co. KG Dispositif d'éclairage de salle d'opération mono-réflecteur
JP2018078107A (ja) * 2016-11-11 2018-05-17 トライルックス メディカル ゲゼルシャフト ミットベシュレンクター ハフトゥング ウント コー カーゲーＴＲＩＬＵＸ Ｍｅｄｉｃａｌ ＧｍｂＨ ＆ Ｃｏ． ＫＧ モノリフレクタ手術室用照明灯
US10648646B2 (en) 2016-11-11 2020-05-12 Trilux Medical Gmbh & Co. Kg Monoreflector operating room light
CN113446540A (zh) * 2021-05-27 2021-09-28 东风电驱动系统有限公司 一种汽车仪表盘直下式照明灯箱及仪表组件

Also Published As

Publication number Publication date
WO2013000639A3 (fr) 2013-03-07
CN202302791U (zh) 2012-07-04

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