WO2009135327A1 - Illumination device - Google Patents

Illumination device

Info

Publication number
WO2009135327A1
WO2009135327A1 PCT/CH2009/000139 CH2009000139W WO2009135327A1 WO 2009135327 A1 WO2009135327 A1 WO 2009135327A1 CH 2009000139 W CH2009000139 W CH 2009000139W WO 2009135327 A1 WO2009135327 A1 WO 2009135327A1
Authority
WO
Grant status
Application
Patent type
Prior art keywords
device
mm
rigid
crystal
semiconductor
Prior art date
Application number
PCT/CH2009/000139
Other languages
German (de)
French (fr)
Inventor
Peter Rast
Original Assignee
Highlight Illumina 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

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50Cooling arrangements
    • F21V29/70Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21KNON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21KNON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/69Details of refractors forming part of the light source
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V3/00Globes; Bowls; Cover glasses
    • F21V3/02Globes; Bowls; Cover glasses characterised by the shape
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V3/00Globes; Bowls; Cover glasses
    • F21V3/04Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
    • F21V3/06Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material
    • F21V3/062Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material the material being plastics

Abstract

The invention relates to an illumination device, also called an illumination body (1), said device being characterised in that at least one semiconductor crystal (7) protected by a transparent protective cap (6) and connected to the power supply (5) is mounted on a rigid illumination carrier (2) containing at least one supply line (3) which is not visible from the outside, and the return line which is not visible from the outside, for the power supply. Said semiconductor crystal is mounted in such a way that the light flux emitted from the crystal (7) during the current conduction is visible from the outside in a hemispherical manner, and the rigid illumination carrier (2) is used as a heat conductor for dissipating the heat produced from the semiconductor crystal (7) during the current conduction.

Description

Apparatus for lighting

The present invention relates to an apparatus for lighting.

The innovation in the semiconductor physics light enables new applications of the light-emitting diode (LED; light emitting diode).

LED lamps with an output of more than 50 mA forward current need a special design for heat dissipation. If the heat is not removed, then the temperature in the boundary layer of the semiconductor may rise above 12O 0 C.

If the temperature exceeds 12O 0 C, then the LED is aging disproportionately fast.

Conventional LED lamps are available in Spot lights commercially. Such lamps have a small angle of light emission from the housing. In a lateral viewing this glow of light output from the LED crystal is not visible because of the LED crystal mounted recessed.

The more power has an LED lamp, for example, 3 Watt, the more important is the heat dissipation.

Conventional LED lamps with a typical forward current of 20 mA have been det because no special lighting effects were achieved and because the light emitted from the semiconductor crystal light compared to thermal emitters has been perceived attractive to the human eye than too little not verwen- as lights.

It is an object of the present invention, len to STEL a device for lighting.

In this device, a semiconductor crystal or a plurality of semiconductor crystals to be used, so that the power requirement to a minimum can be held.

This device should be constructed such that the characteristic of the light emission of the LED light source can also be used decoratively.

This device should be constructed such that genü- quietly heat is removed at a forward current of more than 50 mA.

This device is to be realized in different aesthetically attractive shapes.

This device should be able to be used as energy-saving lamp, in particular as a decorative rationsleuchten or as a bundled light beam, such as spots.

This device is to be produced in a simple and cost-effective manner.

When this apparatus is in operation, is to consist in a touch no risk of injury; in particular, no burns and electric shocks should be possible. This device is intended to be scalable.

With the present invention, these objectives are achieved.

The present invention relates to a forward direction of the lighting, and lighting body 1 called, which is characterized in that a rigid light beam 2, inside which there is at least one invisible from the outside supply duct 3 and the invisible from the outside return line 4 for the power supply 5 can be found, at least a protected with a transparent protective cap 6 semiconductor crystal 7, which is connected to said power supply 5, is mounted such that the light emitted from the crystal 7, when current flows luminous flux is hemispherical visible from the outside, and that the rigid lighting carrier 2 serves as a heat conductor for removing the heat generated when current flows from the semiconductor crystal. 7

Preferred embodiments of this invention are defined in the dependent claims.

In the following part are possible execution of the present invention.

Here reference is also made to the figures.

Figure Ia shows a cross section through a possible lighting rigid support 2 with an inserted and jammed pipe 11. Figure Ib shows a detailed cross section through a possible lighting rigid carrier. 2

2a shows a cross section through a terminal 14 with a central thread 15 and the first slot sixteenth

Figure 2b shows a cross section through a terminal 14 with a central thread 15 and the second slot 17th

2c shows a radial section through a clamp 14 to the third slot 18 and the fourth slot nineteenth

Figure 3 shows schematically a possible inventions dung according luminous element.

One possible inventive device can be made as follows:

As a rigid illumination carrier 2 is a A- luminiumstab was used having a height of 32 mm and a diameter of 25 mm.

At the upper part of a paragraph has been removed with a width of 2 mm and a height of 3 mm.

At the lower part a hole 20 has been drilled with a diameter of 6.2 mm and a length of 25 mm along the central axis.

At a distance of 10 mm from the bottom of a 5 mm thread 21 has been radially cut. From the upper part with a radius of 8 mm were drilled two channels 22 with respect to the central axis having a diameter of 3 mm at an angle of 30 °.

In the central bore 20, a 15 cm long steel tube 11 was inserted with a wall thickness of 0.5 mm and a diameter of 6 mm.

In this steel pipe 11 a radial bore 23 has been drilled out of 5 mm at a distance of 7 cm.

In the radial thread 21 a grub screw 24 was screwed to Verklem- mung of the steel pipe.

If necessary, the outer surface of the rigid illumination carrier 2 can be increased with cooling fins.

The rigid illumination carrier 2 may in principle have any shape - for example it may have the shape of a cone, a hemisphere, a cuboid, including any modifications of these shapes.

As semiconductor crystal 7, the product was

Cree XLamp XR-E LED company Cree, Inc. Durham NC 27703, USA used.

This product 7 comprises a carrier 8, and a transparent protective cap 6, which is additionally formed se as Lin-.

the wires for the electrical supply line 3 and the return line 4 were soldered to this product. 7 These wires 3,4 are pulled through the two channels 22, through the steel pipe 11 and through the radial bore 23rd

Subsequently, the carrier 8 has been glued to the upper part of the rigid illumination carrier. 2

The two channels 22 are sealed with a sealant.

If a rod or a wire cable is used in place of the steel pipe 11 as an alternative, the wires 3,4 are still drawn through the two channels 22nd

In this case, the channels must be lengthened and 22 to the lower part of the rigid support 2 illumination performed in a different angle.

The protective cover 9 of PMMA was produced by injection molding and had the shape of a cup.

This protective cover 9 had an outer diameter of 25 mm, a height of 21 mm and wall thicknesses of 1 mm ke. This case had 9 at its open end an internal sales of 1x2 mm.

The shape of the protective cover 9 which interacts with the shape of the rigid illumination carrier. 2

As an optical element 10, the product was used 20 mm Lamberitan the company Carclo Technical Plastics, Os sett, England. This optical element 10 was bonded to the substrate 8 of the semiconductor crystal. 7

Subsequently, the protective cover 9 was adhered to the rigid watertight lighting carrier. 2

As a terminal 14, an aluminum rod was used having a height of 21 mm and a diameter of 20 mm.

At the upper part of a 12 mm thread 15 with a depth of 18 mm was th geschnit- along the central axis.

At the lower part of a continuous through the center of the first slot was milled 16 with 6x11 mm and 3 mm radius out at a height of 3 mm.

Such material used part has been rotated 90 degrees counter-clockwise.

At the lower part a to the center continuous second slot was milled 17 with 4x11 mm and 2 mm radius out at a height of 3 mm.

Between the first slot 16 and second slot 17, a third radial slot was milled with 18 4 mm height and a radius of 2 mm over an arc of 90 ° in the clockwise direction out at a height of 3 mm.

The made-part was rotated 180 °.

At the lower part of a radial fourth slot was milled with 19 mm height and 4 a radius of 2 mm over an arc of 90 ° in a counterclockwise direction out at a height of 3 mm.

The steel pipe 11 has been performed such one in the present in the terminal 14 through the first slot 16 in that the wires for the electrical supply line 3 and the return line could be executed 4 by the present in the terminal 14 the second slot 17 downwards.

Several of these devices produced in this way can be combined into a novel light element as follows.

For simplicity, the combination of only two of these devices produced in this way will be described.

As a fastening device, a wire rope 13, and per device per a clamp 14 was used.

The wire rope 13 has been pulled through the terminal 14 existing in the third slot 18 and fourth slot nineteenth

For clamping a grub screw is screwed into the present in the terminal 14 12 mm Thread 15th

Opposite the wire rope 13, any angle can be adjusted from 0 ° to 90 ° α.

When power supply 5, the product is Power

LED converter from Barthelme, Nuremberg used. The lead 3 of the first device was connected to this power supply. 5

The return line 4 of the first device was connected with the feed line 3, the second device having an electrical connection terminal 26th

The return line 4 of the second device has been connected to an electrical connection terminal 27 with the wire rope. 13

The return line 4 of the power supply 5 is connected to the other end of the wire cable 13 having an electrical connection terminal 27th

When operating the light-emitting element, the heat loss through the rigid illumination beam 2, the steel pipe 11 is discharged, the terminal 14 and the wire rope 13 to the ambient air.

The inventive device is designed so that thus also a decorative effect.

With an inventive device compared to a thermal radiator about 80% can be saved in energy.

The inventive devices and the inventive lighting elements can also be used in outdoor areas both indoors and.

The inventive devices and the inventive lighting elements can be hung in any way, or is placed. In the present invention, the following reference numerals are used:

1 lighting fixture

2 rigid illumination support

3 feed line

4 return

5 Power Supply

6 cap

7/2 semiconductor crystal

8 further carrier

9 Cover

10 optical element

11 rod / pipe / cable / joint / mounting

12 rigid body

13 cable / rod / tube

14 terminal

15 central thread

16, first slot 17, second slot

Third slot 18

19 fourth slot 20 hole 21 radial threaded

22 channels

Radial bore 23

24 grub screw

25 Sealant 26 connecting terminal

27 connecting terminal.

Claims

claims
1. A device for lighting, and lighting body (1) referred to, characterized in that a rigid light beam (2), in the home at least partners an invisible from the outside supply line (3) and invisible from the outside return line (4 ) (for the power supply 5), (at least one (with a transparent protective cap 6) protected semiconductor crystal 7) which is connected to the-called power supply (5) is mounted such that the (from the crystal 7) when current is flowing e- mittierte luminous flux is hemispherical visible from the outside, and that the rigid illumination carrier (2) is heat generated as a heat conductor for removing the semiconductor crystal when current flows from the HaIb- (7).
2. Device according to claim 1, characterized in that there is (2) and the semiconductor crystal (7) is still at least one other carrier (8) between the rigid illumination carrier.
3. Device according to one of claims 1 to
2, characterized in that the rigid illumination beam (2) is mounted on the side on which the with a transparent protective cap (6) protected semiconductor crystal (7), an open or closed transparent protective cover (9), for example by bonding or jamming, and that, if appropriate, the outer surface of the rigid lighting is enlarged support (2), for example, with cooling fins.
4. Device according to one of claims 1 to
3, characterized in that the rigid illumination beam (2) is made of one piece, preferably of a metal or an alloy, in particular aluminum, steel, such as stainless steel, brass or copper.
5. Device according to one of claims 1 to
4, characterized in that the transparent protective cap (6) is made of a transparent plastic, and that the protective cap (6) is optionally formed as a lens.
6. Device according to one of claims 1 to
5, characterized in that the semiconductor crystal (7), in particular a LED crystal, preferably one LED crystal conducted at a current of 100 mA to 5000 mA, in particular from 300 mA to 5000 mA, preferably from 300 mA to 1000 mA, a light power in the wavelength range of 400 nm to 700 nm is emitted, with the rigid illumination carrier (2) or to the further carrier (8) is glued or clamped either.
7. Device according to one of claims 1 to 6, characterized in that either
- between the semiconductor crystal (7) and the open or closed transparent protective cover (9) is an optical element (10) which converges the light emitted from the semiconductor crystal (7), luminous flux, or
Is that the open or closed transparent sleeve (9) as an optical element out forms ¬ (10) which focuses the from the semiconductor crystal (7) the emitted light flux -.
8. Device according to one of claims 1 to
7, characterized in that the open or closed transparent or partly transparent protective cover (9) is manufactured from glass or from a transparent or partially transparent plastic, for example polycarbonate, PC, or polymethyl methacrylate, PMMA, which materials are optionally dyed.
9. Device according to one of claims 1 to
8, characterized in that there are 1 to 25 semiconductor crystal (7), which emit in the visible wavelength range.
10. Device according to one of claims 1 to
9, characterized in that the rigid illumination beam (2) on the side facing the semiconductor crystal (7) is situated opposite, with an end of a rod / tube / wire cable / joint (11) or a holder
(11) is connected, for example by adhesive bonding or clamping, in particular a straight or curved rod (11) or a straight or curved tube / wire (11), and that at the other end of this rod / tube / wire rope (11) optionally, a rigid body (12) or a device is mounted according to any one of claims 1 to 9, for example by means of adhesive bonding or clamping, said rod (11) or said tube / wire / joint (11) or said support (11) and the said rigid body
(12) are preferably made of a metal or an alloy, in particular aluminum, steel, such as stainless steel, brass or copper.
11 light-emitting element, characterized in that it comprises at least one device according to any of arrival sayings 1 to 10, a fastening device and at least one supply line (3) and a return line (4) for the power supply (5).
12. Luminous element according to claim 11, characterized in that the devices according to one of claims 1 to 10 are either in series or in parallel, in particular 2 to 16 devices, and in the case of the parallel circuit a constant current source is connected downstream.
13. Luminous element according to one of claims 11 to 12, characterized in that the fastening device either
- a cable (13) and at least one terminal (14) or
- a rod (13) or a tube (13) and at least one terminal (14) or
- a rigid body
includes.
14. Luminous element according to one of claims 11 to 13, characterized in that either the rigid
Illumination carrier (2) or the rod (11) or the tube (11) or the hinge (11) or the holder (11) is connected to the fastening device.
15. Luminous element according to one of claims 11 to 14, characterized in that the fastening device (13,14) is made of an electrically conductive material and serves as a return line.
16. Luminous element according to one of claims 11 to 15, characterized in that the fastening device (13) is designed as a rope, in which one or more inlet (s) (3) for the power supply (5) is integrated (are), preferably in such a way that this supply line (s) (3) with the strands of the rope is wrapped (13) for the finished cable (are), for example with a twist pitch of 15 mm to 40 mm.
PCT/CH2009/000139 2008-05-05 2009-05-04 Illumination device WO2009135327A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CH6952008 2008-05-05
CH695/08 2008-05-05

Publications (1)

Publication Number Publication Date
WO2009135327A1 true true WO2009135327A1 (en) 2009-11-12

Family

ID=40984770

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH2009/000139 WO2009135327A1 (en) 2008-05-05 2009-05-04 Illumination device

Country Status (1)

Country Link
WO (1) WO2009135327A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012216578A1 (en) * 2012-09-17 2014-03-20 Osram Gmbh Lighting device mounted in vehicle headlight, has carrier that is provided with cover cap used as protection for semiconductor light sources during assembly or disassembly of semiconductor light source module

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3908726A1 (en) * 1989-03-14 1990-09-27 Jan Vogel Illumination system
DE9109666U1 (en) * 1991-08-03 1991-10-31 Bopp, Leonhard, 6901 Neckarsteinach, De
DE4014818A1 (en) * 1990-05-09 1991-11-14 Friedemann Weber LV lighting system sliding on parallel bus=bar - uses slotted supporting bar and bar-magnet contact
US20020191403A1 (en) * 2001-06-16 2002-12-19 Zhang Long Bao High intensity light source arrangement
EP1617132A2 (en) * 2004-07-16 2006-01-18 Osram-Sylvania Inc. Stem mount for light emitting diode
DE202007008258U1 (en) * 2007-04-30 2007-10-31 Lumitech Produktion Und Entwicklung Gmbh LED bulbs

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3908726A1 (en) * 1989-03-14 1990-09-27 Jan Vogel Illumination system
DE4014818A1 (en) * 1990-05-09 1991-11-14 Friedemann Weber LV lighting system sliding on parallel bus=bar - uses slotted supporting bar and bar-magnet contact
DE9109666U1 (en) * 1991-08-03 1991-10-31 Bopp, Leonhard, 6901 Neckarsteinach, De
US20020191403A1 (en) * 2001-06-16 2002-12-19 Zhang Long Bao High intensity light source arrangement
EP1617132A2 (en) * 2004-07-16 2006-01-18 Osram-Sylvania Inc. Stem mount for light emitting diode
DE202007008258U1 (en) * 2007-04-30 2007-10-31 Lumitech Produktion Und Entwicklung Gmbh LED bulbs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012216578A1 (en) * 2012-09-17 2014-03-20 Osram Gmbh Lighting device mounted in vehicle headlight, has carrier that is provided with cover cap used as protection for semiconductor light sources during assembly or disassembly of semiconductor light source module

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