CN104913225A - Lamp fitting - Google Patents
Lamp fitting Download PDFInfo
- Publication number
- CN104913225A CN104913225A CN201410132408.4A CN201410132408A CN104913225A CN 104913225 A CN104913225 A CN 104913225A CN 201410132408 A CN201410132408 A CN 201410132408A CN 104913225 A CN104913225 A CN 104913225A
- Authority
- CN
- China
- Prior art keywords
- light emitting
- emitting diode
- height
- light
- light fixture
- 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
- 239000000758 substrate Substances 0.000 claims abstract description 16
- 230000011514 reflex Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
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
- F21V7/10—Construction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
Abstract
A lamp comprises a hollow lamp tube, a substrate, a plurality of light emitting diodes and a reflecting element. The hollow lamp tube has a first long axis direction. The substrate is positioned in the hollow lamp tube and is provided with a bearing surface. The light emitting diodes are arranged on the bearing surface and are arranged along the first long axis direction. The reflecting element is arranged on the bearing surface and is provided with an upper surface, a lower surface, a plurality of through holes and a plurality of concave structures, wherein the upper surface is opposite to the lower surface, the through holes penetrate through the upper surface and the lower surface and correspond to the light-emitting diodes, and the concave structures are positioned between the light-emitting diodes and used for reflecting light rays emitted by the light-emitting diodes.
Description
Technical field
The invention relates to a kind of light fixture, particularly a kind of strip light fixture using light emitting diode.
Background technology
In recent years, light emitting diode (Light-Emitting Diode, LED) technology improves, and the LED of high power, high luminosity goes on the market successively, add LED has life-span length advantage as bulb, make this kind of bulb gradually have the gesture replacing other conventional light source.LED can be applicable to numerous light fixture, as fluorescent lamp, street lamp or flashlight.
Along with the improved efficiency of LED, the brightness of each single LEDs is also increasing, so LED the number used in each strip light fixture can reduce, not only overall brightness is unaffected, and the cost manufactured required for strip light fixture also declines thereupon.
But, when LED the number that strip light fixture uses reduces, spacing between each LED increases thereupon, in such a case, because the main lighting angle of single LEDs has the upper limit, so hot spot phenomenon (Hot Spot) can be produced, the brightness irregularities namely seen on fluorescent tube, just brighter to the lighting tube brightness of LED position, the lighting tube brightness corresponding to position between two LED then can be darker.
Summary of the invention
The invention provides a kind of light fixture, in order to eliminate the hot spot phenomenon (Hot Spot) of light emitting diode strip light fixture, and make its brightness uniformity.
According to an embodiment of the present invention, a kind of light fixture, comprises hollow fluorescent tube, substrate, multiple light emitting diode and reflecting element.Hollow fluorescent tube has the first long axis direction.Substrate is arranged in hollow fluorescent tube and has loading end.Light emitting diode is arranged on loading end, and along the first long axis direction arrangement.Reflecting element is arranged on loading end, there is upper surface, lower surface, multiple perforation and multiple sunk structure, wherein upper surface is relative with lower surface, the through upper surface of perforation and lower surface, and respective leds, sunk structure between light emitting diode, in order to the light emitted by Refl-Luminous diode.
In one or more embodiment of the present invention, the symmetrical center positions of each sunk structure between two light emitting diodes that it is adjacent.
In one or more embodiment of the present invention, each sunk structure is conical pit or V-type chase or inverted trapezoidal chase.
In one or more embodiment of the present invention, each sunk structure is V-arrangement or the inverted trapezoidal with two opposed facets in parallel first long axis direction and perpendicular to the cross section of loading end.
In one or more embodiment of the present invention, there is between two inclined-planes and substrate normal angle that angle is less than 30 degree respectively.
In one or more embodiment of the present invention, light emitting diode has the first height, and reflecting element has the second height, and wherein second is highly less than the first height, and second is highly greater than 1/3rd first height.
In one or more embodiment of the present invention, each V-type chase and each inverted trapezoidal chase extend along perpendicular to the first long axis direction.
In one or more embodiment of the present invention, light emitting diode has the first height, and reflecting element has the second height, and wherein second is highly less than 2/3rds first height, and second is highly greater than 1/3rd first height.
In one or more embodiment of the present invention, reflecting element has the second height, and sunk structure has third high degree, and wherein second is highly greater than third high degree.
The above-mentioned embodiment of the present invention arranges the sunk structure of reflecting element between light emitting diode, so the light reflection that light emitting diode can be launched toward lateral by sunk structure is to hollow fluorescent tube, thus the lighting tube brightness corresponding to position between two light emitting diodes is made to increase, and make the brightness uniformity on hollow fluorescent tube, and eliminate hot spot phenomenon.
Accompanying drawing explanation
Figure 1A illustrates the profile of conventional lamp;
The light fixture that Figure 1B illustrates corresponding Figure 1A adjoins the brightness-location drawing of the inside region of exiting surface;
Fig. 2 A illustrates the profile of the light fixture according to an embodiment of the present invention;
The light fixture that Fig. 2 B illustrates corresponding diagram 2A adjoins the brightness-location drawing of the inside region of exiting surface;
Fig. 3 illustrates the top view of the light fixture according to an embodiment of the present invention;
Fig. 4 illustrates the top view of the light fixture according to another embodiment of the present invention;
Fig. 5 A illustrates the profile of the light fixture according to the another embodiment of the present invention;
Fig. 5 B illustrates the top view of Fig. 5 A;
Fig. 6 illustrates another profile of the light fixture of Fig. 2 A.
Detailed description of the invention
Below will disclose multiple embodiment of the present invention with accompanying drawing, as clearly stated, the details in many practices will be explained in the following description.But should be appreciated that, the details in these practices is not applied to limit the present invention.That is, in some embodiments of the present invention, the details in these practices is non-essential.In addition, for simplifying for the purpose of accompanying drawing, some known usual structures and element illustrate in the mode simply illustrated in the accompanying drawings.
Figure 1A illustrates the profile of conventional lamp 100 '.The light fixture 100 ' that Figure 1B illustrates corresponding Figure 1A adjoins the brightness-location drawing of the inside region of exiting surface 141 '.As Figure 1A and Figure 1B illustrate, hollow fluorescent tube 140 ' has the first long axis direction D ' and exiting surface 141 ', and wherein exiting surface 141 is positioned at above light emitting diode 120.Substrate 110 ' is arranged in hollow fluorescent tube 140 ' and has loading end 111 '.Light emitting diode 120 ' is arranged on loading end 111 ', and arranges along the first long axis direction D '.Due to the improved efficiency of recent light emitting diode 120 ', the brightness of each light emitting diode 120 ' is also increasing, so a number of the light emitting diode 120 ' used in light fixture 100 ' can reduce thereupon, but when a number of the light emitting diode 120 ' that light fixture 100 ' uses reduces, spacing between each light emitting diode 120 ' increases thereupon, in such a case, because the main lighting angle of single light emitting diode 120 ' has the upper limit, so hot spot phenomenon (Hot Spot) can be produced, on exiting surface 141 ', namely see the phenomenon of brightness irregularities, just brighter to the brightness of the exiting surface 141 ' of the position of light emitting diode 120 ', the brightness corresponding to the exiting surface 141 ' of position between two light emitting diodes 120 ' then can be darker.Correspond to light emitting diode 120 ' and the inside region of adjoining exiting surface 141 ' can form clear zone 102 ', and correspond to position between two light emitting diodes 120 ' and the inside region of adjoining exiting surface 141 ' can form dark space 104 '.
Fig. 2 A illustrates the profile of the light fixture 100 according to an embodiment of the present invention.The light fixture 100 that Fig. 2 B illustrates corresponding diagram 2A adjoins the brightness-location drawing of the inside region of exiting surface 141.The light fixture 100 of present embodiment comprises substrate 110, multiple light emitting diode 120, reflecting element 130 and hollow fluorescent tube 140.Hollow fluorescent tube 140 has the first long axis direction D and exiting surface 141, and wherein exiting surface 141 is positioned at above light emitting diode 120.Substrate 110 is arranged in hollow fluorescent tube 140 and has loading end 111.Light emitting diode 120 is arranged on loading end 111, and arranges along the first long axis direction D.Reflecting element 130 is arranged on loading end 111, there is upper surface 133, lower surface 134, multiple perforation 131 and multiple sunk structure 132, wherein upper surface 133 is relative with lower surface 134, the through upper surface 133 of perforation 131 and lower surface 134, and respective leds 120, sunk structure 132 between light emitting diode 120, in order to the light emitted by Refl-Luminous diode 120.
Correspond to light emitting diode 120 and the inside region of adjoining exiting surface 141 can form clear zone 102, and correspond to position between two light emitting diodes 120 and the inside region of adjoining exiting surface 141 can form dark space 104.
Because the sunk structure 132 of reflecting element 130 is between light emitting diode 120, so the light that light emitting diode 120 can be launched toward lateral by sunk structure 132, such as light L, reflect and light is advanced towards the direction of exiting surface 141, so effectively can promote the brightness of dark space 104, make the brightness in the brightness of dark space 104 and clear zone 102 can not gap excessive.
Exiting surface 141 can be cloudy surface structure, to be atomized the light of outwards injection inside exiting surface 141.So, due to the brightness of dark space 104 and clear zone 102 brightness can not gap excessive, light in dark space 104 and the light in clear zone 102, after the atomization of exiting surface 141, just can make clear zone 102 even with the light luminance of dark space 104, thus eliminate hot spot phenomenon.
The step of assembling light fixture 100 is little with the step difference of the light fixture 100 ' traditional with assembling.Specifically, first configure circuit on substrate 110, assemble light emitting diode 120 again on loading end 111, afterwards the reflecting element 130 with perforation 131 is arranged on loading end 111, position due to perforation 131 is the allocation position corresponding to light emitting diode 120, so when reflecting element 130 is arranged on substrate 110, each light emitting diode 120 will pass each perforation 131 naturally, and the configuration relation formed as Fig. 2 A, then the substrate 110 will assembled again, light emitting diode 120 and reflecting element 130 are arranged in hollow fluorescent tube 140, and complete the assembling of light fixture 100.
Compared to the step of assembling conventional lamp 100 ', the assembling of light fixture 100 is only many is arranged at step on the loading end 111 of substrate 110 by reflecting element 130, the assembling of other steps and conventional lamp 100 ' does not have difference, therefore, the processing procedure of assembling light fixture 100 by the processing procedure in conjunction with conventional lamp 100 ', relatively easily can design.
Specifically, lower surface 134 directly contacts with loading end 111.Should be appreciated that, the detailed description of the invention of above lifted light fixture 100 is only illustration, and is not used to limit the present invention, and persond having ordinary knowledge in the technical field of the present invention, should look actual needs, and elasticity selects the detailed description of the invention of light fixture 100.
Sunk structure 132 can be arbitrary shape, as long as light reflection light emitting diode 120 can launched toward lateral and make light advance towards the direction of exiting surface 141.Sunk structure 132 can be made up of smooth flat or smooth surface, to make the reflecting effect of sunk structure 132 better.
Fig. 3 illustrates the top view of the light fixture 100 according to an embodiment of the present invention.Show as depicted in fig. 3, each sunk structure 132 is conical pit 132a.Conical pit 132a can reflex to directly over conical pit 132a toward the light major part that lateral is launched light emitting diode 120, effectively can eliminate the luminance difference between dark space 104 and clear zone 102.
Fig. 4 illustrates the top view of the light fixture 100 according to another embodiment of the present invention.As Fig. 4 illustrate, each sunk structure 132 is V-type chase 132b.V-type chase 132b can reflex to directly over V-type chase 132b toward the light major part that lateral is launched light emitting diode 120, due to V-type chase 132b across whole substrate 110, so larger distribution will be had by the light reflected, the luminance difference between dark space 104 and clear zone 102 effectively can be eliminated.
Fig. 5 A illustrates the profile of the light fixture 100 according to the another embodiment of the present invention.Fig. 5 B illustrates the top view of Fig. 5 A.As Fig. 5 A and Fig. 5 B illustrate, each sunk structure 132 is inverted trapezoidal chase 132c.Inverted trapezoidal chase 132c can reflex to directly over inverted trapezoidal chase 132c toward the light major part that lateral is launched light emitting diode 120, the reflecting effect of inverted trapezoidal chase 132c is roughly identical with V-type chase 132b, effectively can eliminate the luminance difference between dark space 104 and clear zone 102.
As Fig. 2 A and Fig. 5 A illustrate, each sunk structure 132 extends along perpendicular to this first long axis direction D.Specifically, each V-type chase 132b (see Fig. 4) and each inverted trapezoidal chase 132c (see Fig. 5 B) are along extending perpendicular to this first long axis direction D.
Each sunk structure 132 is V-arrangement or the inverted trapezoidal with two opposed facets 135 in parallel first long axis direction D and perpendicular to the cross section of loading end 111.Specifically, there is between two inclined-planes 135 and substrate normal N angle theta that angle is less than 30 degree respectively, by the design above about angle, the light reflection that sunk structure 132 can be launched most of light emitting diode 120 toward lateral is to dark space 104, and light reflection light emitting diode 120 can not launched toward lateral is to clear zone 102.
As Fig. 5 A illustrate, sunk structure 132 has more a bottom surface 136.Because reflecting element 130 can use the mode of injection molding (insert molding) to be made, if sunk structure 132 is inverted trapezoidal chase 132c, the structure of bottom surface 136 can make the easier demoulding of reflecting element 130.
Fig. 6 illustrates another profile of the light fixture 100 of Fig. 2 A.As Fig. 6 illustrate, light emitting diode 120 has the first height H 1, and reflecting element 130 has the second height H 2, namely the ultimate range of upper surface 133 and lower surface 134.Second height H 2 is less than the first height H 1 or the second height H 2 is less than 2/3rds first height H 1.Thus, reflecting element 130 just can not be too high, and most of light that light emitting diode 120 is launched toward lateral is blocked, and thus sunk structure 132 cannot reflection ray.
In addition, the second height H 2 is greater than 1/3rd first height H 1.Thus, the height of sunk structure 132 just can not be too low, to such an extent as to cannot receive the light that most of light emitting diode 120 launches toward lateral.
Sunk structure 132 has third high degree H3, and namely sunk structure 132 is from upper surface 133 toward the degree of depth of downward-extension.Second height H 2 is greater than third high degree H3.Due to the part that sunk structure 132 is reflecting element 130, so the second height H 2 of reflecting element 130 must be greater than the third high degree H3 of sunk structure 132.
The above-mentioned embodiment of the present invention arranges the sunk structure 132 of reflecting element 130 between light emitting diode 120, so the light reflection that light emitting diode 120 can be launched toward lateral by sunk structure 132 is to hollow fluorescent tube 140, thus hollow fluorescent tube 140 brightness corresponding to position between two light emitting diodes 120 is made to increase, and make the brightness uniformity on hollow fluorescent tube 140, and eliminate hot spot phenomenon.
Although the present invention discloses as above with embodiment; so itself and be not used to limit the present invention; anyly be familiar with this those skilled in the art; without departing from the spirit and scope of the present invention; when being used for a variety of modifications and variations, the scope that therefore protection scope of the present invention ought define depending on appending claims is as the criterion.
Claims (9)
1. a light fixture, is characterized in that, comprises:
One hollow fluorescent tube, has one first long axis direction;
One substrate, is arranged in this hollow fluorescent tube, has a loading end;
Multiple light emitting diode, is arranged on this loading end, and arranges along this first long axis direction; And
One reflecting element, be arranged on this loading end, there is a upper surface, a lower surface, multiple perforation and multiple sunk structure, wherein this upper surface is relative with this lower surface, described perforation this upper surface through and this lower surface, and corresponding described light emitting diode, described sunk structure between described light emitting diode, in order to reflect the light emitted by described light emitting diode.
2. light fixture according to claim 1, is characterized in that, the symmetrical center positions of sunk structure described in each between its light emitting diode described in adjacent two.
3. light fixture according to claim 2, is characterized in that, sunk structure described in each is a conical pit or a V-type chase or an inverted trapezoidal chase.
4. light fixture according to claim 3, is characterized in that, sunk structure described in each is V-arrangement or the inverted trapezoidal with two opposed facets in this first long axis direction parallel and perpendicular to the cross section of this loading end.
5. light fixture according to claim 4, is characterized in that, respectively has the angle that an angle is less than 30 degree between this two inclined-planes and this substrate normal respectively.
6. the light fixture according to any one of Claims 1 to 5, it is characterized in that, described light emitting diode has one first height, and this reflecting element has one second height, wherein this second be highly less than this first height, and this second be highly greater than 1/3rd this first height.
7. light fixture according to claim 6, is characterized in that, V-type chase described in each and inverted trapezoidal chase described in each are along extending perpendicular to this first long axis direction.
8. light fixture according to claim 7, it is characterized in that, described light emitting diode has one first height, and this reflecting element has one second height, wherein this second be highly less than 2/3rds this first height, and this second be highly greater than 1/3rd this first height.
9. light fixture according to claim 8, is characterized in that, this reflecting element has one second height, and described sunk structure has a third high degree, and wherein this second is highly greater than this third high degree.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW103108691A TW201534843A (en) | 2014-03-12 | 2014-03-12 | Lighting device |
| TW103108691 | 2014-03-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104913225A true CN104913225A (en) | 2015-09-16 |
Family
ID=54082521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410132408.4A Pending CN104913225A (en) | 2014-03-12 | 2014-04-03 | Lamp fitting |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104913225A (en) |
| TW (1) | TW201534843A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060126343A1 (en) * | 2004-12-15 | 2006-06-15 | Min-Hsun Hsieh | LED light source |
| CN201221688Y (en) * | 2008-07-01 | 2009-04-15 | 林峻毅 | LED daylight lamp tube |
| CN201448643U (en) * | 2009-06-10 | 2010-05-05 | 林峻毅 | LED lamp tube |
| CN102588759A (en) * | 2011-01-14 | 2012-07-18 | 艾笛森光电股份有限公司 | Light emitting device |
| CN203273401U (en) * | 2013-05-16 | 2013-11-06 | 常州市电力开关厂有限公司 | Brightness enhancing LED daylight tube |
-
2014
- 2014-03-12 TW TW103108691A patent/TW201534843A/en unknown
- 2014-04-03 CN CN201410132408.4A patent/CN104913225A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060126343A1 (en) * | 2004-12-15 | 2006-06-15 | Min-Hsun Hsieh | LED light source |
| CN201221688Y (en) * | 2008-07-01 | 2009-04-15 | 林峻毅 | LED daylight lamp tube |
| CN201448643U (en) * | 2009-06-10 | 2010-05-05 | 林峻毅 | LED lamp tube |
| CN102588759A (en) * | 2011-01-14 | 2012-07-18 | 艾笛森光电股份有限公司 | Light emitting device |
| CN203273401U (en) * | 2013-05-16 | 2013-11-06 | 常州市电力开关厂有限公司 | Brightness enhancing LED daylight tube |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201534843A (en) | 2015-09-16 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150916 |