CN105042432A - LED spotlight - Google Patents
LED spotlight Download PDFInfo
- Publication number
- CN105042432A CN105042432A CN201510532231.1A CN201510532231A CN105042432A CN 105042432 A CN105042432 A CN 105042432A CN 201510532231 A CN201510532231 A CN 201510532231A CN 105042432 A CN105042432 A CN 105042432A
- Authority
- CN
- China
- Prior art keywords
- guide
- lighting ring
- light source
- led
- led light
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
Abstract
An LED spotlight comprises an LED light source and a light guide structure. The light guide structure is arranged above the LED light source and spaced from the LED light source. The light guide structure comprises a first light guide ring and a second light guide ring, the first light guide ring is arranged above the middle of the LED light source, and the second light guide ring is arranged on the periphery of the first light guide ring. Light inlets are formed in the bottom end of the first light guide ring and the bottom end of the second light guide ring respectively, and light outlets are formed in the top end of the first light guide ring and the top end of the second light guide ring respectively. The inner surface of the first light guide ring is used for reflecting part of light which is emitted by the LED light source and located in the middle in the direction close to the central axis of the LED light source, and the inner surface of the second light guide ring is used for reflecting part of light which is emitted by the LED light source and deviates from the central axis of the LED light source in the direction close to the central axis of the LED light source. The LED spotlight has the beneficial effect of being high in luminous efficiency.
Description
Technical field
The present invention relates to field of LED illumination, particularly a kind of LED spotlight.
Background technology
Current LED spotlight secondary optical light distribution lens, basic function is the rising angle and the light extraction efficiency that control light, and present LED spotlight mostly is the light distribution structure that lens add plane reflection shield.But adopting the occasion of lens, lens are in the process changing opticpath, and some light can be caused to be wasted because of reasons such as reflection, absorptions unavoidably, this just causes the light extraction efficiency of this LED spotlight entirety lower.In addition, the direct outgoing of the light that LED light source sends, light is dazzling, and anti-dazzle effect is poor, is difficult to obtain good Light distribation.
Summary of the invention
In view of this, the LED spotlight providing a kind of light extraction efficiency higher is necessary.
The technical solution used in the present invention is: a kind of LED spotlight, comprise LED light source and to be arranged on above this LED light source and light guide structure spaced with this LED light source, this light guide structure comprises the first guide-lighting ring and the second guide-lighting ring, this first guide-lighting ring is arranged on the top in the middle part of this LED light source, this the second guide-lighting ring is arranged on the periphery of this first guide-lighting ring, this first guide-lighting ring and the second guide-lighting ring are provided with light inlet respectively and are provided with light-emitting window on top in bottom, the inner surface of this first guide-lighting ring is used for reflecting towards the direction near this LED light source axis the some light being positioned at middle part that this LED light source sends, the inner surface of this second guide-lighting ring is used for reflecting towards the direction near this LED light source axis the some light departing from its axis that this LED light source sends.
Compared with prior art, this LED spotlight is provided with light guide structure, this light guide structure comprises this first guide-lighting ring and this second guide-lighting ring, the some light that what this LED light source sent be positioned in the middle part of this LED light source through this first guide-lighting ring after the direction reflection near this LED light source axis, and depart from the some light in the middle part of this LED light source after the direction towards this LED light source axis close of this second guide-lighting ring is reflected, by this light-emitting window outgoing, like this, the collimation of the guide-lighting ring of difference that the light that this LED light source sends is sheathed in this light guide structure can realize more low-angle luminous intensity distribution.Converge light compared to traditional LED spotlight scioptics, this LED spotlight carries out luminous intensity distribution owing to adopting the reflection of light guide structure, has evaded the shortcoming that lens light extraction efficiency is low, has made this LED spotlight have the higher advantage of light extraction efficiency.
Accompanying drawing explanation
Fig. 1 is the stereogram of first embodiment of the invention LED spotlight.
Fig. 2 is the profile of LED spotlight shown in Fig. 1.
Fig. 3 is the stereogram of light guide structure and lampshade composite in LED spotlight shown in Fig. 1.
Fig. 4 is the top view of light guide structure and lampshade composite in LED spotlight shown in Fig. 3.
Fig. 5 is the light path schematic diagram of LED spotlight shown in Fig. 2.
Fig. 6 is the light path schematic diagram of LED spotlight in prior art.
Description of reference numerals:
10LED light source 20 light guide structure 30 lampshade
The guide-lighting ring of the guide-lighting ring 22 second of 40 radiator 21 first
23 the 3rd guide-lighting ring 201 light inlet 202 light-emitting windows
203 connecting rod 31 reflecting walls
Detailed description of the invention
Fig. 1 is the stereogram of first embodiment of the invention LED spotlight, and Fig. 2 is the profile of LED spotlight shown in Fig. 1.This LED spotlight 100 comprises LED light source 10 and to be arranged on directly over this LED light source 10 and light guide structure 20 spaced with this LED light source 10.The area source that this LED light source 10 can be arranged together for spot light or multiple LED light source 10 and be formed, certainly, in order to obtain good reflecting effect, the distance between this LED light source 10 and this light guide structure 20 should be regulated, make this " area source " relatively this light guide structure 20 form spot light.The axis of this LED light source 10 refers to the axis at the center of the exiting surface passing perpendicularly through this LED light source 10, and this LED light source 10 might not be circular configuration, and it is the same center finding exiting surface of rectangular structure.
Please refer to Fig. 1, Fig. 2, this LED spotlight 100 also comprises lampshade 30, and this lampshade 30 is for having the shell structure of opening, and this LED light source 10 to be arranged in this lampshade 30 and to arrange towards this opening, so that the light that this LED light source 10 sends appears the injection of this opening.This light guide structure 20 is arranged on the opening part of this lampshade 30.This lampshade 30 comprises trumpet-shaped reflecting wall 31, this light guide structure 20 is housed within this reflecting wall 31, the some light that this LED light source 10 can send by this reflecting wall 31 reflects towards the direction of the axis of this LED light source 10, that is, the direction of the light of this reflecting wall 31 reflection is passed through by roughly parallel with the direction of the axis of this LED light source 10.
In addition, this LED spotlight 100 also comprises radiator 40, and this LED light source 10 is arranged on the end face of this radiator 40, and this lampshade 30 is located at around this radiator 40 end face.
Please refer to Fig. 1 to Fig. 5, this light guide structure 20 comprises the first guide-lighting ring 21 and the second guide-lighting ring 22, and this first guide-lighting ring 21 is arranged on the top in the middle part of this LED light source 10, and this second guide-lighting ring 22 is arranged on the periphery of this first guide-lighting ring 21.This first guide-lighting ring 21 and the second guide-lighting ring 22 are provided with light inlet 201 respectively and are provided with light-emitting window 202 on top in bottom, the internal diameter of this first guide-lighting ring 21 and this second guide-lighting ring 22 all increases gradually on the direction away from this LED light source 10.Preferably, vertical range between this second guide-lighting ring 22 and this LED light source 10 is less than the vertical range between this first guide-lighting ring 21 and this LED light source 10, the light that this LED light source 10 is sent more be irradiated to this second guide-lighting ring 22 to avoid block by the bottom of this first guide-lighting ring 21.The setting of this range difference, make different guide-lighting rings can more effectively to should LED light source 10 send with approximate spot light, the light that angularly distributes in space arranges, to be reflected the axis of these light towards this LED light source 10.This first guide-lighting ring 21 and the second guide-lighting ring 22 are thin-wall construction, on arbitrary cross section of this first guide-lighting ring 21 and this second guide-lighting ring 22, this first guide-lighting ring 21 or this second guide-lighting ring 22 and the axis angulation of this LED light source 10 are less than this first guide-lighting ring 21 of directive or the light of this second guide-lighting ring 22 and the axis angulation of this LED light source 10 that this LED light source 10 sends, the light major part that this LED light source 10 is sent can shine directly on the madial wall of this first guide-lighting ring 21 or this second guide-lighting ring 22, and towards this light-emitting window 202 outgoing after reflection.The inner surface of this first guide-lighting ring 21 is used for reflecting towards the direction near this LED light source 10 axis the some light being positioned at middle part that this LED light source 10 sends, and the inner surface of this second guide-lighting ring 22 is used for reflecting towards the direction near this LED light source 10 axis the some light departing from its axis that this LED light source 10 sends.In the present embodiment, the inner surface of this first guide-lighting ring 21 and this second guide-lighting ring 22 is the plane tilted, understandable, also can make the structure of free form surface according to luminous intensity distribution demand, make the light distribution angle of this LED spotlight 100 do less.
In addition, in the present embodiment, also comprise at least one the 3rd guide-lighting ring 23, 3rd guide-lighting ring 23 is arranged on the periphery of this second guide-lighting ring 22, the inner surface of the 3rd guide-lighting ring 23 is used for reflecting towards the direction near this LED light source 10 axis the some light departing from its axis that this LED light source 10 sends, and the spacing between the 3rd guide-lighting ring 23 and this second guide-lighting ring 22 is greater than the spacing between this second guide-lighting ring 22 and this first guide-lighting ring 21, make to be irradiated to light on the inner surface of the 3rd guide-lighting ring 23 more from this light-emitting window 202 outgoing to avoid block by the top of this second guide-lighting ring 22, make the emergent ray of this LED spotlight 100 more even.Understandable, can increase according to the luminous intensity distribution demand of this LED spotlight 100 or reduce the number of guide-lighting ring.
Please refer to Fig. 1, Fig. 3 and Fig. 4, in the present embodiment, also comprise many connecting rods 203, this first guide-lighting ring 21 is connected and fixed by these connecting rods 203 with this second guide-lighting ring 22.The perpendicular or parallel axis in this lampshade 30 of these connecting rods 203 is arranged, and this first guide-lighting ring 21 and the second guide-lighting ring 22 are separated into multiple grid areas by these connecting rods 203, like this, these connecting rods 203 are just by reflecting some veiling glares, stopping that human eye is to the direct-view of this LED light source 10, prevents dazzle from producing.
In sum, this LED spotlight 100 is provided with light guide structure 20, this light guide structure 20 comprises this first guide-lighting ring 21 and this second guide-lighting ring 22, the some light that what this LED light source 10 sent be positioned in the middle part of this LED light source 10 through this first guide-lighting ring 21 after the direction reflection near this LED light source 10 axis, and depart from the some light in the middle part of this LED light source 10 after the direction towards this LED light source 10 axis close of this second guide-lighting ring 22 is reflected, by this light-emitting window 202 outgoing, like this, the collimation of the guide-lighting ring of difference that the light that this LED light source 10 sends is sheathed in this light guide structure 20 can realize more low-angle luminous intensity distribution.Converge light compared to traditional LED spotlight scioptics, owing to adopting the reflection of light guide structure to carry out luminous intensity distribution, evaded the shortcoming that lens light extraction efficiency is low, made this LED spotlight have the higher advantage of light extraction efficiency.In addition, this LED spotlight 100 uses the multiple collimation of guide-lighting ring realization to light, and can greatly reduce the height of whole lamp, make whole lamp relatively small and exquisite, and eliminate the high cost processing of complex-curved lens, assembling is simple.
Understandable, the lateral cross section of the in the present embodiment, this light guide structure 20 comprises first guide-lighting ring 21 and the second guide-lighting ring 22 can be other shapes, and as triangle, square, rectangle or discontinuous loop configuration, and the present embodiment is for circular cross-section.
These are only preferred embodiment of the present invention above, and not in order to limit the present invention, any those skilled in the art, not departing from this programme technical scope, can work as and utilize the technology contents of above-mentioned exposure to be the Equivalent embodiments of equal change as few modifications.In every case for departing from technical solution of the present invention content, according to the technology of the present invention essence to any amendment made for any of the above embodiments, equivalent replacement, improvement etc., all should be included within the scope of protection of the invention.
Claims (10)
1. a LED spotlight, comprise LED light source and to be arranged on above this LED light source and light guide structure spaced with this LED light source, it is characterized in that: this light guide structure comprises the first guide-lighting ring and the second guide-lighting ring, this first guide-lighting ring is arranged on the top in the middle part of this LED light source, this the second guide-lighting ring is arranged on the periphery of this first guide-lighting ring, this first guide-lighting ring and the second guide-lighting ring are provided with light inlet respectively and are provided with light-emitting window on top in bottom, the inner surface of this first guide-lighting ring is used for reflecting towards the direction near this LED light source axis the some light being positioned at middle part that this LED light source sends, the inner surface of this second guide-lighting ring is used for reflecting towards the direction near this LED light source axis the some light departing from its axis that this LED light source sends.
2. LED spotlight according to claim 1, is characterized in that: also comprise lampshade, and this lampshade is the shell structure with opening, and this LED light source to be arranged in this lampshade and to arrange towards this opening, and this light guide structure is arranged on the opening part of this lampshade.
3. LED spotlight according to claim 2, it is characterized in that: this lampshade comprises trumpet-shaped reflecting wall, this light guide structure is housed within this reflecting wall, and the some light that this LED light source can send by this reflecting wall reflects towards the direction of the axis of this LED light source.
4. LED spotlight according to claim 1, is characterized in that: the vertical range between this second guide-lighting ring and this LED light source is less than the vertical range between this first guide-lighting ring and this LED light source.
5. LED spotlight according to claim 1, is characterized in that: the internal diameter of this first guide-lighting ring and this second guide-lighting ring is all increasing gradually away from the direction of this LED light source.
6. LED spotlight according to claim 5, it is characterized in that: this first guide-lighting ring and the second guide-lighting ring are thin-wall construction, on arbitrary cross section of this first guide-lighting ring and the second guide-lighting ring, the axis angulation of this first guide-lighting ring or this second guide-lighting ring and this LED light source is less than this first guide-lighting ring of directive or the light of this second guide-lighting ring and the axis angulation of this LED light source that this LED light source sends.
7. LED spotlight according to claim 1, it is characterized in that: also comprise at least one the 3rd guide-lighting ring, 3rd guide-lighting ring is arranged on the periphery of this second guide-lighting ring, the inner surface of the 3rd guide-lighting ring is used for reflecting towards the direction near this LED light source axis the some light departing from its axis that this LED light source sends, and the spacing between the 3rd guide-lighting ring and this second guide-lighting ring is greater than the spacing between this second guide-lighting ring and this first guide-lighting ring.
8. LED spotlight according to claim 1, is characterized in that: also comprise many connecting rods, and this first guide-lighting ring and this second guide-lighting ring are connected and fixed by described connecting rod.
9. LED spotlight according to claim 7, is characterized in that: the perpendicular or parallel axis in described lampshade of described connecting rod is arranged, and this first guide-lighting ring and the second guide-lighting ring are separated into multiple grid areas by described connecting rod.
10. LED spotlight according to claim 3, is characterized in that: also comprise radiator, this LED light source is arranged on the end face of this radiator, and this lampshade is located at around this radiator end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510532231.1A CN105042432A (en) | 2015-08-26 | 2015-08-26 | LED spotlight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510532231.1A CN105042432A (en) | 2015-08-26 | 2015-08-26 | LED spotlight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105042432A true CN105042432A (en) | 2015-11-11 |
Family
ID=54449225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510532231.1A Pending CN105042432A (en) | 2015-08-26 | 2015-08-26 | LED spotlight |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105042432A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201014331Y (en) * | 2007-03-14 | 2008-01-30 | 广州市电筒工业公司 | Double-layer multi-surface reflecting cup and electric torch with same and lamp |
| US20090262536A1 (en) * | 2004-12-09 | 2009-10-22 | Koninklijke Philips Electronics N.V. | Illumination system |
| CN203501048U (en) * | 2013-09-23 | 2014-03-26 | 欧普照明股份有限公司 | Illuminating lamp and optical module for illumination |
| CN203656811U (en) * | 2012-01-31 | 2014-06-18 | Rab照明设备公司 | Compact concentric-array reflective mirror for LED lighting device |
| CN204986678U (en) * | 2015-08-26 | 2016-01-20 | 漳州立达信灯具有限公司 | LED spotlight |
-
2015
- 2015-08-26 CN CN201510532231.1A patent/CN105042432A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090262536A1 (en) * | 2004-12-09 | 2009-10-22 | Koninklijke Philips Electronics N.V. | Illumination system |
| CN201014331Y (en) * | 2007-03-14 | 2008-01-30 | 广州市电筒工业公司 | Double-layer multi-surface reflecting cup and electric torch with same and lamp |
| CN203656811U (en) * | 2012-01-31 | 2014-06-18 | Rab照明设备公司 | Compact concentric-array reflective mirror for LED lighting device |
| CN203501048U (en) * | 2013-09-23 | 2014-03-26 | 欧普照明股份有限公司 | Illuminating lamp and optical module for illumination |
| CN204986678U (en) * | 2015-08-26 | 2016-01-20 | 漳州立达信灯具有限公司 | LED spotlight |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151111 |
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| WD01 | Invention patent application deemed withdrawn after publication |