CN202927742U - Light source module and surface lighting equipment including light source module - Google Patents
Light source module and surface lighting equipment including light source module Download PDFInfo
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- CN202927742U CN202927742U CN 201220504859 CN201220504859U CN202927742U CN 202927742 U CN202927742 U CN 202927742U CN 201220504859 CN201220504859 CN 201220504859 CN 201220504859 U CN201220504859 U CN 201220504859U CN 202927742 U CN202927742 U CN 202927742U
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- light source
- light
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- reflecting chamber
- reflection body
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Abstract
The utility model provides a light source module which is used for surface illumination, and surface lighting equipment including the light source module. The light source module comprises a light reflection cavity and a light source, wherein the light reflection cavity comprises a front reflecting body, a back reflecting body and at least one side reflecting body which is arranged between the front reflecting body and the back reflecting body, a maximum distance between the front reflecting body and the back reflecting body is the height of the light reflection cavity, the light reflection cavity is encircled by the light source, the front reflecting body, the back reflecting body and the side reflecting body together, and light rays are projected to the light reflection cavity by the light source, the front reflecting body, the back reflecting body and the side reflecting body, and a maximum distance between the light reflection cavity and a vertical light source setting face is the length of the light reflection cavity, wherein a ratio of the length and the height of the light reflection cavity is substantially larger than or equal to 5 and less than or equal to 13.
Description
Technical field
The application relates to a kind of light source module for surface illumination and comprises the surface illumination equipment of this light source module, espespecially a kind of surface illumination equipment that promotes the light source module that supplies surface illumination of illumination and equal optical activity and comprise this light source module.
Background technology
Traditional surface illumination equipment generally uses fluorescent lamp, fluorescent tube for example, but fluorescent tube can't provide stable light source, and the life-span is shorter, power is higher and comparatively power consumption, and more Yin Qinei is filled with mercury vapor and might contaminated environment.
And light emitting diode (Light Emitting Diode, LED) have the characteristics such as life-span length, province's energy and environmental friendliness, therefore be widely used in making the backlight as TV, screen etc., for example the combination of solid LGP, diffuser, blast sheet (BEF) and the reflecting type polarizing brightening piece (DBEF) by using LED and resin leaded light provides bright dipping uniform backlight, but this backlight weight is heavier.In order to overcome relevant issues, No. 08144656 patent application case of WO has proposed to consist of with the light recirculation cavity of hollow the technology of backlight and display system.
Because LED is the luminous lighting system of point, therefore for backlight, its main consideration is that the requirement bright dipping has high uniformity, to avoid TV or screen, the situation of bright dark inequality is arranged again.Therefore but effects on surface lighting module, the LED of direct illumination make the people feel dazzling, if LED will be used for surface illumination, except uniform bright dipping being arranged, reducing glare effect and weight reduction with the convenient demand such as mobile, more will provide enough brightness.
Summary of the invention
The utility model relates to a kind of light source module for surface illumination, and it can provide uniform bright dipping, reduces glare effect, weight reduction and promote brightness.
the utility model provides the light source module of surface illumination, it is for surface illumination and comprise light reflecting chamber and light source, the light reflecting chamber comprises the front-reflection body, back reflector and be arranged at before, at least one side reflectors between back reflector, ultimate range between front-reflection body and back reflector is the height of this light reflecting chamber, light source and front-reflection body, back reflector and side reflectors are surrounded the light reflecting chamber jointly, and to light reflecting chamber throw light, the light reflecting chamber is the length of light reflecting chamber in the ultimate range that perpendicular light source arranges face, wherein the ratio of the length of light reflecting chamber and height is in fact more than or equal to 5 and less than or equal to 13.
According to an aspect of the present utility model, wherein front-reflection body and the back reflector of light reflecting chamber are parallel to each other in fact.
According to an aspect of the present utility model, wherein the side reflectors of light reflecting chamber and light source perpendicular to front-reflection body and back reflector configuration, make the section of light source module rectangular in fact.
According to an aspect of the present utility model, wherein press from both sides an angle between front-reflection body and back reflector, and light source makes the section of light source module triangular in shape in fact in fact perpendicular to the configuration of front-reflection body.
According to an aspect of the present utility model, wherein reflector and side reflectors are at least 70% to the average reflectance of any polarization visible light after the light reflecting chamber.
According to an aspect of the present utility model, wherein the front-reflection body of light reflecting chamber is at least 90% to the average reflectance of the first polarization visible light, average reflectance to the second polarization visible light is less than 50%, the front-reflection body has the first average transmittance to the first polarization visible light, the second polarization visible light had the second average transmittance, and the second average transmittance is at least 10 with the ratio of the first average transmittance, and wherein the polar biased angle of the second polarization visible light is perpendicular to the polar biased angle of the first polarization visible light.
According to an aspect of the present utility model, wherein the light reflecting chamber more comprises transition components, and it is be arranged at a side of front-reflection body and relatively be close to back reflector.
According to an aspect of the present utility model, wherein transition components is the combination that is selected from blast sheet (BEF), diffusion sheet or blast sheet and diffusion sheet.
According to an aspect of the present utility model, wherein the ratio of the length of light reflecting chamber and height is in fact more than or equal to 5 and less than or equal to 9.
According to an aspect of the present utility model, wherein light source comprises circuit board and is arranged at a plurality of luminescence components on circuit board, and luminescence component is selected from light emitting diode or Organic Light Emitting Diode.
The utility model separately provides a kind of surface illumination equipment, and it comprises light source module and housing, connecting rod and a pedestal for surface illumination, and wherein light source module is placed in housing, and connecting rod is connected between pedestal and housing.
Description of drawings
Fig. 1 is the first preferred embodiment schematic diagram of the utility model light source module.
Fig. 2 is the a-a ' profile of Fig. 1.
Fig. 3 is the light source module explosive view of the utility model the first preferred embodiment.
Fig. 4 is the second preferred embodiment schematic diagram of the utility model light source module.
Fig. 5 is the a-a ' profile of Fig. 4.
Fig. 6 is the schematic diagram that the light source module of the utility model the first preferred embodiment is applied to surface illumination equipment.
The specific embodiment
The utility model provides a kind of light source module for surface illumination and has the surface illumination equipment of this light source module, the effect that it is reached uniform bright dipping, reduces dazzle, weight reduction and promote brightness by the special geometrical configuration configuration of light source module.
See also Fig. 1, it is a preferred embodiment schematic diagram of the utility model light source module.As shown in Figure 1, light source module 1 is for surface illumination, it can be applicable to such as surface illumination equipment such as desk lamps, but not as limit, and light source module 1 comprises light reflecting chamber 10 and light source 11, wherein light reflecting chamber 10 comprise front-reflection body 101, back reflector 102 and be arranged at front-reflection body 101 and back reflector 102 between at least one side reflectors 103, wherein, the ultimate range between front-reflection body 101 and back reflector 102 is the height H (as shown in Figure 2) of light reflecting chamber 10.Light source 11 is to form light reflecting chamber 10 with common encirclement of front-reflection body 101, back reflector 102 and side reflectors 103, so that becoming, light reflecting chamber 10 closes in fact close space, light source 11 can be to light reflecting chamber 10 throw lights, and because light reflecting chamber 10 is essentially a confined space, so light can circulate in light reflecting chamber 10 and repeat to be utilized; In perpendicular light source 11, face is set as for light reflecting chamber 10, namely Fig. 1 is parallel to the direction of a-a ' section, ultimate range be defined as the length L (as shown in Figure 2) of light reflecting chamber 10.For light-emitting uniformity and the illumination that promotes light source module 1, make it can really be applied to surface illumination, smooth reflecting chamber 10 of the present utility model has special geometrical configuration, that is the length L of light reflecting chamber 10 and height H ratio (L/H) are not less than in fact 5 and be not more than 13 for good, for example: this ratio (L/H) can be 5,6,7,8,9,10,11,12 or 13, wherein is not less than in fact 5 and be not more than 9 for better with the ratio (L/H) of length L and height H again.
Please consult again Fig. 1 and coordinate Fig. 2, in the present embodiment, front-reflection body 101 and the back reflector 102 of light reflecting chamber 10 are parallel to each other in fact, and side reflectors 103 is in fact perpendicular to front-reflection body 101 and back reflector 102 configurations with light source 11, therefore as can be known, light reflecting chamber 10 is in rectangular in fact along the section of its length L direction (a-a ' section).
The light source 11 of the present embodiment can comprise circuit board 110 and be arranged at a plurality of luminescence components 111 on circuit board 110, luminescence component 111 is selected from light emitting diode (LED) or Organic Light Emitting Diode (Organic Light Emitting Diode, OLED).In addition, in order to reach better light recovering effect to avoid the loss of light, in the present embodiment, the back reflector 102 of light reflecting chamber 10 and side reflectors 103 can select the average reflectance to any polarization visible light to be at least 70% reflector plate, and the instantiation of back reflector 102 and side reflectors 103 includes but not limited to high reflectance reflector plate (ESR) or silver-colored reflector plate.Optionally first, second polarization visible light of the visible light of luminescence component 111 projections of light source 11 is reflected or penetrates as for 101 of the front-reflection bodies of light reflecting chamber 10, wherein the polar biased angle of first, second polarization visible light is mutually vertical, in the present embodiment, the average reflectance of 101 pairs of the first polarization visible lights of front-reflection body is at least 90%, preferably be at least 95%, average reflectance to the second polarization visible light is less than 50%, preferably less than 30%, be more preferably less than 15%, most preferably less than 5%.So should understand, as long as the reflectivity to the first polarization visible light is at least 90%, to the reflectivity of the second polarization visible light less than 50%, thereby can allow the second polarization visible light of at least 50% pass front-reflection body 101 and leave the light reflecting chamber, all can be used as front-reflection body 101 of the present utility model.in addition, 101 pairs of the first polarization visible lights of the front-reflection body of the present embodiment have the first average transmittance, the second polarization visible light had the second average transmittance, wherein the second average transmittance is at least 10 with the ratio of the first average transmittance, to allow the second polarization visible light pass front-reflection body 101 and to leave light reflecting chamber 10 just can control by front-reflection body 101, and most the first polarization visible light is blocked and is retained in light reflecting chamber 10 with front-reflection body 103, and make light follow also recycling in light reflecting chamber 10 by back reflector 102 and side reflectors 103, reduce reflected glare and increase illumination and further improve the inhomogeneity purpose of bright dipping to reach.In the present embodiment, front-reflection body 101 can be the high-efficiency reflective body, for example: and light reflecting type polarizing brightening piece (DBEF), but not as limit.
See also Fig. 3, in certain embodiments, for at least a portion that makes the first polarization visible light in light reflecting chamber 10 converts the second polarization visible light to, and convert at least a portion of the second polarization visible light in light reflecting chamber 10 to first polarization visible light, be converted into the second polarization visible light with the first polarization visible light that can't pass front-reflection body 101, light source module 1 more can further comprise transition components 104.Transition components 104 is set to good near a side of back reflector 102 to be in close proximity to front-reflection body 101 relatively, and transition components 104 can be selected from separately the combination of blast sheet (BEF) 104a, diffusion sheet 104b or blast sheet 104a and diffusion sheet 104b, wherein blast sheet 104a and diffusion sheet 104b are except can providing first, second polarization visible light of conversion, possess more separately light is concentrated and equal effect of light, just can further promote the utilization rate of light by transition components 104 and reduce dazzle thus.
Certainly, light source module of the present utility model is not limited to structure as shown in Figures 1 and 2.See also Fig. 4, it is the schematic diagram of another preferred embodiment of the utility model light source module.As shown in Figure 4, light source module 1 ' comprises light reflecting chamber 10 ' and light source 11 ' equally, and wherein light reflecting chamber 10 ' comprises front-reflection body 101 ', back reflector 102 ' and at least one side reflectors 103 '.In the present embodiment, light reflecting chamber 10 ' before, between back reflector 101 ', 102 ' and non-parallel, but press from both sides an angle
This angle
Can for
Degree, or be
Degree, or be
Degree, in addition, light reflecting chamber 10 ' comprises two side reflectors 103 ', it is arranged between front-reflection body 101 ' and back reflector 102 ', 101 ' be arranged between forward and backward reflector 101 ', 102 ' perpendicular to the front-reflection body as for light source 11 ', jointly to surround light reflecting chamber 10 ' with forward and backward reflector 101 ', 102 ' with side reflectors 103 '.Should understand, in the present embodiment, light source module 1 ' is along the section of light reflecting chamber 10 ' length direction (a-a ' section) (as shown in Figure 5) triangular in shape in fact.Length L as for the light reflecting chamber ' and height H ' ratio, and the selecting of front-reflection body 101 ', back reflector 102 ' and the side reflectors 103 ' of light reflecting chamber 10 ', all similar with aforementioned the first embodiment, repeat no more in this.
See also Fig. 6, it is applied to the schematic diagram of surface illumination equipment for the light source module of the utility model the first preferred embodiment.As shown in Figure 6, surface illumination equipment 2 can be a desk lamp, but not as limit, surface illumination module 2 still comprises housing 21, connecting rod 22 and pedestal 23 except light source module 1, and wherein connecting rod 22 is to be connected between housing 21 and pedestal 23.In the present embodiment, housing 21 comprises upper shell 211 and lower house 212, and it defines an accommodation space jointly, and so that light source module 1 is contained in accommodation space, and the output optical zone that sees through lower house 212 is appeared the light of light source module 1.In addition, in order to solve heat dissipation problem, surface illumination equipment 2 more optionally comprises heat abstractor 24, wherein light source module 1 can be in heat abstractor 24 contacts, for example: the light source 11 of light source module 1 contacts with heat abstractor 24, see through heat abstractor 24 dissipations with the heat energy that light source 11 is produced, affect the efficient of light source module 1 to avoid the heat energy accumulation.Certainly, the embodiment of surface illumination equipment 2 is not limited with that shown in Figure 6.
Test portion
Below test is in order to illustrating the technical solution of the utility model, but limits never in any form scope of the present utility model.
I. material
The material that uses in following test comprises:
LED: use the LED of 4 2W as light source in embodiment 1-5, LED used is model NS6W183A, available from Japanese Nichia Chemical Industries, Ltd (Nichia corporation).
DBEF:DBEF-D2-400, available from Minnesota Mining Industry and Manufacture Co., Ltd., Taiwan (3M TWLTD.), its average reflectance to the first polarization visible light＞90%, to the average reflectance of the second polarization visible light＜0.5%, to the average reflectance 48～53% of the first polarization visible light and the second polarization visible light, for the average transmittance of the first polarization visible light＜5%; For the average transmittance of the second polarization visible light＞90%, be 46～51% to the average transmittance of the first polarization visible light and the second polarization visible light.
ESR:DESR, available from Minnesota Mining Industry and Manufacture Co., Ltd., Taiwan (3M TW LTD.), its reflectivity 〉=98%, transmissivity is 0.
BEF:BEF-II 90/50, available from Minnesota Mining Industry and Manufacture Co., Ltd., Taiwan (3M TW LTD.).
Diffusion sheet: ET-169 is available from Xuan Mao company.Its light transmittance is 63%, and mist degree (Haze) is 87%.
II. embodiment
Do not affect in fact illumination and the light-emitting uniformity of light source module due to the width of light source module, if but the width of light source module too conference affect the market acceptance, therefore the light source module width of embodiment is unified is 50mm, and the configuration of the light source module length of each embodiment and height is as shown in following table one:
The light source module length of each embodiment of table one and configuration highly
| Group | The light source module length L | The light source module height H | L/ |
| Embodiment | |||
| 1 | 50mm | 10mm | 5 |
| Embodiment 2 | 70mm | 10mm | 7 |
| Embodiment 3 | 90mm | 10mm | 9 |
| Embodiment 4 | 110mm | 10mm | 11 |
| Embodiment 5 | 130mm | 10mm | 13 |
Illumination and light-emitting uniformity
The light fixture height is made as 45cm, measure the central point of 40 centimetres of circular scope of surperficial light fixture exiting surface below diameter and the brightness of four opposite endpoint of two orthogonal diameters with illumination photometer (Lutron manufacturer produce model LX-105 illumination photometer), and according to the illumination mean value of the assay method calculating embodiment 1-5 of 5 methods in CNS (Chinese National Standard) 5065.
The illumination mean value of table 2. embodiment 1-5
| |
1 | 2 | 3 | 4 | 5 |
| Illumination mean value | 719.5 | 746.2 | 754.2 | 790.0 | 800.3 |
The result that the utility model embodiment 1-5 records, it is above and meet the reading lighting standards such as accommodation space, study of CNS12112 dwelling house that its illumination mean value all can reach 500 luxs, shows that the light source module that uses the geometric configuration gained that the special length/height of this case compares really can be in order to as lighting.
And with the recently sign light-emitting uniformity of the minimum of a value in each brightness value and mean value, its result is as shown in table 3.
The light-emitting uniformity of table 3. embodiment 1-5
| |
1 | 2 | 3 | 4 | 5 |
| Light-emitting uniformity | 0.64 | 0.65 | 0.65 | 0.64 | 0.59 |
According to the CIE standard, the light-emitting uniformity of desk lamp working region is required to be more than 0.5, therefore light source module embodiment of the present utility model all provides good light-emitting uniformity except the requirement that can reach illumination.
It will be understood by those skilled in the art that above-mentioned explanation and embodiment only are used for illustration purpose but not in order to limit scope of the present utility model, category of the present utility model is defined by following claim.All equalizations of doing according to claim of the present utility model change and modify, and all should belong to the covering scope of the utility model.
Claims (11)
1. light source module, it is used for for surface illumination and comprises:
The light reflecting chamber, it comprises front-reflection body, back reflector and is arranged at least one side reflectors between this forward and backward reflector, the ultimate range between this front-reflection body and this back reflector is the height of this light reflecting chamber; And
Light source, itself and this front-reflection body, this back reflector and this side reflectors are surrounded this light reflecting chamber jointly, and to this light reflecting chamber throw light, this light reflecting chamber arranges the ultimate range of face in vertical this light source and is the length of this light reflecting chamber;
Wherein, the ratio of the length of this light reflecting chamber and height is in fact more than or equal to 5 and less than or equal to 13.
2. light source module according to claim 1, wherein this front-reflection body and this back reflector of this light reflecting chamber are parallel to each other in fact.
3. light source module according to claim 2, wherein this side reflectors of this light reflecting chamber and this light source perpendicular to this front-reflection body and the configuration of this back reflector, make the section of this light source module rectangular in fact.
4. light source module according to claim 1, wherein press from both sides an angle between this front-reflection body and this back reflector, and this light source makes the section of this light source module triangular in shape in fact in fact perpendicular to this front-reflection body configuration.
5. light source module according to claim 1, wherein this back reflector of this light reflecting chamber and this side reflectors are at least 70% to the average reflectance of any polarization visible light.
6. light source module according to claim 1, wherein this front-reflection body of this light reflecting chamber is at least 90% to the average reflectance of the first polarization visible light, average reflectance to the second polarization visible light is less than 50%, this front-reflection body has the first average transmittance to the first polarization visible light, the second polarization visible light had the second average transmittance, and the second average transmittance is at least 10 with the ratio of the first average transmittance, and wherein the polar biased angle of the second polarization visible light is perpendicular to the polar biased angle of the first polarization visible light.
7. light source module according to claim 1, wherein this light reflecting chamber further comprises transition components, it is arranged at this front-reflection body relatively near a side of this back reflector.
8. light source module according to claim 7, wherein this transition components is selected from the combination of blast sheet (BEF), diffusion sheet or blast sheet and diffusion sheet.
9. light source module according to claim 1, wherein the length of this light reflecting chamber with the ratio of height in fact more than or equal to 5 and less than or equal to 9.
10. light source module according to claim 1, wherein this light source system comprises circuit board and is arranged at a plurality of luminescence components on this circuit board, this luminescence component is selected from light emitting diode or Organic Light Emitting Diode.
11. surface illumination equipment, it provides surface illumination, this surface illumination equipment comprises housing, connecting rod, pedestal and light source module according to claim 1, and wherein this light source module is to be placed in this housing, and this connection leverage is connected between this pedestal and this housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220504859 CN202927742U (en) | 2012-09-28 | 2012-09-28 | Light source module and surface lighting equipment including light source module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220504859 CN202927742U (en) | 2012-09-28 | 2012-09-28 | Light source module and surface lighting equipment including light source module |
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| Publication Number | Publication Date |
|---|---|
| CN202927742U true CN202927742U (en) | 2013-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220504859 Expired - Fee Related CN202927742U (en) | 2012-09-28 | 2012-09-28 | Light source module and surface lighting equipment including light source module |
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| CN (1) | CN202927742U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104968991A (en) * | 2014-01-02 | 2015-10-07 | 皇家飞利浦有限公司 | Light emitting module |
| US10495269B2 (en) | 2014-01-02 | 2019-12-03 | Signify Holding B.V. | Light emitting module |
-
2012
- 2012-09-28 CN CN 201220504859 patent/CN202927742U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104968991A (en) * | 2014-01-02 | 2015-10-07 | 皇家飞利浦有限公司 | Light emitting module |
| CN108361571A (en) * | 2014-01-02 | 2018-08-03 | 飞利浦照明控股有限公司 | Light emitting module |
| US10495269B2 (en) | 2014-01-02 | 2019-12-03 | Signify Holding B.V. | Light emitting module |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20180928 |