CN205137113U - Light -emitting device - Google Patents
Light -emitting device Download PDFInfo
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- CN205137113U CN205137113U CN201520842336.2U CN201520842336U CN205137113U CN 205137113 U CN205137113 U CN 205137113U CN 201520842336 U CN201520842336 U CN 201520842336U CN 205137113 U CN205137113 U CN 205137113U
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- light
- connecting portion
- emitting device
- lens
- lens section
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Abstract
The application discloses a light -emitting device. Light -emitting device is including luminous module, composite lens and lamp shade. The composite lens sets up in luminous module top to contain first connecting portion, second connecting portion and lens portion, the second connecting portion around and connect first connecting portion, lens portion around and connect the second connecting portion, and lens portion is with at least one time total reflection mode, a group light that the module sent of will giving off light is jetted out by lens portions. On luminous module and composite lens were located to lamp shade cover, the cross -section of lamp shade had maximum breadth's an imaginary line, first region and second district are divided into with the lamp shade to the imaginary line, and luminous module and composite lens correspondence are located the first region and keep away from the second district.
Description
Technical field
The utility model relates to a kind of light-emitting device, particularly a kind of light-emitting device using light emitting diode as light source.
Background technology
In recent years, due to the continuous improvement of light emitting diode (LightEmittingDiode, LED) in technique and material, the luminous efficiency of light emitting diode is significantly promoted.Be different from general fluorescent lamp or Electricity-saving lamp bulb, the characteristic such as light emitting diode has low power consumption, long service life, security is high, emission response time is short and volume is little, therefore, light emitting diode has used widely in the electronic product of numerous species.The application of one of them is using light emitting diode as emitting bulb, to replace traditional fluorescent tube and fluorescent bulb.
Known LED lamp has light emitting diode and circuit board.Light emitting diode is arranged on circuit board, by shinny after light emitting diode is driven.But the light sent due to light emitting diode has directionality, and need to be installed on pedestal in order to heat radiation, thus make the light irradiation area about slightly 180 degree of LED lamp, the light distribution angle that conventional bulb is close to 360 degree cannot be reached.In addition, after the Energy Star (EnergyStar) of the U.S. announces for the specification of light emitting diode bulb, the light efficiency rate originally paid attention to is transferred to light quality by more and more many light emitting diode bulb manufacturers.In other words, exactly the light distribution angle of light emitting diode bulb is paid attention to more.
Therefore, how to provide a kind of light-emitting device, can angular be lifted out, to reach high angle luminous intensity distribution, become one of important topic.
Summary of the invention
In view of above-mentioned problem, the purpose of this utility model is lifted out angular, to reach the light-emitting device of high angle luminous intensity distribution object for providing one just can reach at lower cost.
For achieving the above object, according to a kind of light-emitting device of the present utility model, illuminating module, compound lens and lampshade is comprised.Compound lens is arranged at above illuminating module, and comprise the first connecting portion, the second connecting portion and lens section, second connecting portion around and connect the first connecting portion, lens section around and connect the second connecting portion, and lens section is to be totally reflected mode at least one times, a group light illuminating module sent is penetrated by lens section.Lampshade is located on illuminating module and compound lens, and the cross section of lampshade has the imaginary line of Breadth Maximum, and lampshade is divided into the firstth district and the secondth district by this imaginary line, and illuminating module and compound lens correspondence are positioned at the firstth district and away from the secondth district.
In one embodiment, the first connecting portion, the second connecting portion and lens section form annular accommodation space, and illuminating module has at least one light emitting diode, and light emitting diode is arranged at annular accommodation space.
In one embodiment, the light distribution angle of lens section is 60 degree to 160 degree.
In one embodiment, the first connecting portion, the second connecting portion and lens section are formed in one.
In one embodiment, base and lamp holder is comprised further.Base engages with lampshade, and carries illuminating module and compound lens.Lamp holder engages with base.
In one embodiment, base has radiator structure.
In one embodiment, the second connecting portion or lens section have light emergence face, and light emergence face has micro-structural.
In one embodiment, the cross sectional shape of micro-structural is wavy or arc or zigzag.
In one embodiment, the second connecting portion or lens section have light emergence face, and light emergence face is arcwall face.
In one embodiment, the second connecting portion or lens section have light emergence face, and light emergence face is arcwall face, and has micro-structural.
From the above, according in light-emitting device of the present utility model, by the second connecting portion of compound lens around and connect the first connecting portion, and lens section around and connect the second connecting portion, and lens section is to be totally reflected mode at least one times, penetrated by lens section with a group light that illuminating module is sent.In addition, further by lampshade being located on illuminating module and compound lens, and the cross section of lampshade has the imaginary line of Breadth Maximum, lampshade is divided into the firstth district and the secondth district by this imaginary line, and illuminating module and compound lens correspondence are positioned at the firstth district and away from the secondth district, thus realize just can reaching at lower cost being lifted out angular, to reach the light-emitting device of high angle luminous intensity distribution object.
Accompanying drawing explanation
Figure 1A and Figure 1B is respectively decomposing schematic representation and the generalized section of a kind of light-emitting device of the utility model preferred embodiment.
Fig. 2 is the schematic diagram of the compound lens of the light-emitting device of Figure 1A.
Fig. 3 A to Fig. 3 H is respectively the schematic diagram of the compound lens of the different embodiments of a kind of light-emitting device of the utility model preferred embodiment.
Detailed description of the invention
Hereinafter with reference to relevant drawings, the light-emitting device according to the utility model preferred embodiment is described, wherein identical element is illustrated with identical Reference numeral.
Please refer to shown in Figure 1A, Figure 1B and Fig. 2, wherein, Figure 1A and Figure 1B is respectively decomposing schematic representation and the generalized section of a kind of light-emitting device 1 of the utility model preferred embodiment, and Fig. 2 is the schematic diagram of the compound lens 12 of the light-emitting device 1 of Figure 1A.
As illustrated in figures ia and ib, light-emitting device 1 comprises illuminating module 11, compound lens 12 and lampshade 13.In addition, the light-emitting device 1 of the present embodiment comprises base 14 and lamp holder 15 further.
Illuminating module 11 has at least one light emitting diode 111, substrate 112 and drive circuit 113.In this, substrate 112 can be circuit substrate, and the mode that light emitting diode 111 is arranged with ring-type is arranged on the upper surface of substrate 112.In application, in order to reduce the volume of illuminating module 11, light emitting diode 111 can be chip type light emitting diode, and certainly, light emitting diode 111 also can be pins type (DIP) light emitting diode.In addition, drive circuit 113 is arranged at substrate 112 and is electrically connected light emitting diode 111, preferably, drive circuit 113 is arranged on another relative with light emitting diode 111 on the surface (lower surface), by the wiring on substrate 112, drive circuit 113 can control whether lighting of light emitting diode 111.
Need it is specifically intended that the present embodiment has eight light emitting diodes 111 for illuminating module 11 to illustrate, but, when practice, can according to the consideration of the demand of product and design, the light emitting diode of use varying number and different arrangement modes.Generally speaking, the present embodiment is applicable to the light emitting diode that quantity is more than three.In addition, the utility model does not limit the connected mode between the light emitting diode of illuminating module yet.
Compound lens 12 is arranged at above illuminating module 11, and covers on light emitting diode 111.The material of compound lens 12 can be printing opacity polymer substance, such as polymethyl methacrylate (PolymethlyMethacrylate, PMMA), polystyrene (Polystyrene, PS), Methyl Methacrylate-Styrene (Methly-methacrylate-Styrene, or Merlon (Polycarbonate MS), PC) etc., do not limit.
In the present embodiment, as shown in Figure 1B and Fig. 2, compound lens 12 comprises the first connecting portion 121, second connecting portion 122 and lens section 123.First connecting portion 121 is positioned at the middle body of compound lens 12, the second connecting portion 122 around and be connected to the first connecting portion 121, lens section 123 then around and connect the second connecting portion 122, make compound lens 12 form circulus.Wherein, the first connecting portion 121, second connecting portion 122 and lens section 123 form annular accommodation space 124 (non-close space), and light emitting diode 111 is arranged among this annular accommodation space 124.In addition, the first connecting portion 121, second connecting portion 122 and lens section 123 can be formed in one.
In the present embodiment, the second connecting portion 122 has light entrance face I1 and light emergence face S1.In this, light entrance face I1 and light emergence face S1 is respectively the arcwall face toward protruding away from light emitting diode 111 direction.The a group light that illuminating module 11 can send by the second connecting portion 122, through the refraction of the light entrance face I1 of the second connecting portion 122, is being reflected by light emergence face S1 through after the second connecting portion 122.Wherein, the region reflected by the light emergence face S1 of the second connecting portion 122 can be described as top district.
Lens section 123 has light entrance face I2, the first light emergence face S2, the second light emergence face S3 and light reflection surface R1.Light reflection surface R1 connects the second connecting portion 122 (light emergence face S1) and the first light emergence face S2 respectively, first light emergence face S2 connects the second light emergence face S3, and the second light emergence face S3 connects light entrance face I2, and light entrance face I2 connects the second connecting portion 122 (light entrance face I1).Wherein, lens section 123 is in the mode be totally reflected at least one times, and another group of light illuminating module 11 being sent, are penetrated by lens section 123 through lens section 123.In this, light can be incident to lens section 123 by light entrance face I2, and is totally reflected by light reflection surface R1 and through after lens section 123, is penetrated by the first light emergence face S2 or the second light emergence face.Total reflection district (TIR) is called in this.Therefore, the irradiation area of lens section 123 is 60 degree to 160 degree, and also namely its light distribution angle is 60 degree to 160 degree.
In addition, the below due to lens section 123 does not have the parts of compound lens 12, therefore, the light that light emitting diode 111 sends by the lower zone in direct scioptics portion 123, to provide the light of side (being called side zones in this).
Then, shown in Figure 1A and Figure 1B, lampshade 13 covers on illuminating module 11 and compound lens 12.In this, lampshade 13 engages with base 14, to form accommodation space 131, with accommodating illuminating module 11 and compound lens 12.The material of lampshade 13 can be the polymer substance of glass or printing opacity.Structure and the lampshade 13 of the compound lens 12 of the present embodiment are arranged in pairs or groups mutually, due to the optical characteristics of district and side zones above the not special regulation and control of the parts by compound lens 12, therefore, the position that lampshade 13 corresponds to top district and side zones needs enough mist degrees to carry out the uneven smooth shape of this Two Areas of homogenising, makes light-emitting device 1 can obtain uniform bright dipping.
In addition, the cross section of lampshade 13 has the imaginary line L of Breadth Maximum, and the first district A1 and the second district A2 divided into by lampshade 13 by this imaginary line L.In this, if when lampshade L is circle, then imaginary line L can be considered the diameter of lampshade 13.In addition, the second district A2 of the present embodiment can be considered semicircle, and the first district A1 can be considered and is less than a semicircle.In addition, illuminating module 11 and compound lens 12 are arranged at the position away from the second district A2, and illuminating module 11 and compound lens 12 are correspondences is positioned at the first district A1.In other words, the lampshade 13 of the present embodiment is commonly called as reducing cell-shell, its cross section is greater than a semicircle, the reason of employing reducing cell-shell is, because the present embodiment to reduce the diameter of compound lens 12 in order to save cost, cause the light energy at the rear being totally reflected district to reduce, therefore need to use the lampshade 13 of reducing cell-shell to increase the light ray energy in (supplying) this region.
In addition, base 14 engages with lampshade 13, and in order to carry illuminating module 11 and compound lens 12.Base 14 material can be metal, plastics or both combinations, and the component that base 14 can be integrated component or forms for multiple parts.On the implementation, base 14 can be the radiator structure 141 of the multiple opening of tool, fin or other form, using the use as thermal convection current and heat transfer.In addition, one end of lamp holder 15 engages with base 14, and the other end, in order to be connected with lamp socket (scheming not show), provides the use of illuminating module 11 luminescence in order to receive external power source.
In addition, please respectively with reference to shown in Fig. 3 A to Fig. 3 H, it is respectively the schematic diagram of the compound lens 12a ~ 12h of the different embodiments of a kind of light-emitting device of the utility model preferred embodiment.In this, only the relativeness of display compound lens 12a ~ 12h and light emitting diode 111, does not show other element of light-emitting device.
As shown in Figure 3A, main different of the compound lens 12 of compound lens 12a and Fig. 2 are, the light entrance face I1 of the second connecting portion 122a of compound lens 12a and light emergence face S1 is quite long and high, make lens section 123a quite height and away from light emitting diode 111.The lampshade (be commonly called as candle light lampshade, do not show) that the compound lens 12a of this mode need arrange in pairs or groups thin and high.
In addition, as shown in Figure 3 B, main different of the compound lens 12 of compound lens 12b and Fig. 2 are, the light entrance face I1 of the second connecting portion 122b of compound lens 12b and light emergence face S1 is respectively the arcwall face toward protruding close to light emitting diode 111 direction.In various embodiments, light entrance face I1 can be the arcwall face toward protruding close to light emitting diode 111 direction, and light emergence face S1 can be toward the arcwall face protruded away from light emitting diode 111 direction or plane or contrary or its combination, the utility model does not all limit.
In addition, as shown in Figure 3 C, main different of the compound lens 12 of compound lens 12c and Fig. 2 are, light entrance face I1 and the light emergence face S1 of the second connecting portion 122c of compound lens 12c are respectively plane.
In addition, as shown in Figure 3 D, main different of the compound lens 12 of compound lens 12d and Fig. 2 are, the second light emergence face S3 of the lens section 123d of compound lens 12d is the arcwall face caved in inside it.
In addition, as shown in FIGURE 3 E, main different of compound lens 12e and the compound lens 12a of Fig. 3 A are, the light emergence face S1 of the second connecting portion 122e of compound lens 12e or the first light emergence face S2 of lens section 123e has micro-structural.In this, respectively there is micro-structural for the first light emergence face S2 of the light emergence face S1 of the second connecting portion 122e and lens section 123e.By the setting of micro-structural, can the light that sends of homogenising light emitting diode 111 effectively.Wherein, aforesaid micro-structural is by ink printing, etching mode, laser or with made by the modes such as precision optical machinery processing.In addition, the cross sectional shape of micro-structural can be selected from wavy or arc or jagged one of them, or its any combination.In this, be wavy respectively for light emergence face S1 and the first light emergence face S2.
In addition, as illustrated in Figure 3 F, main different of compound lens 12f and the compound lens 12b of Fig. 3 B are, the light emergence face S1 of the second connecting portion 122f of compound lens 12f or the first light emergence face S2 of lens section 123f has micro-structural.In this, respectively there is micro-structural with the first light emergence face S2 of the light emergence face S1 of the second connecting portion 122f and lens section 123f, and be respectively wavy for example.
In addition, as shown in Figure 3 G, main different of compound lens 12g and the compound lens 12f of Fig. 3 F are, the micro-structural of the light emergence face S1 of the second connecting portion 122g of compound lens 12g and the first light emergence face S2 of lens section 123g is respectively zigzag.
In addition, as shown in figure 3h, main different of compound lens 12h and the compound lens 12g of Fig. 3 G are, the micro-structural of the light emergence face S1 of the second connecting portion 122h of compound lens 12h and the first light emergence face S2 of lens section 123h is respectively arc, and the second light emergence face S3 of lens section 123h is the arcwall face caved in inside lens section 123h.
In addition, other technical characteristic of compound lens 12a ~ 12h describes in detail in compound lens 12, repeats no more.
Special instruction, above-mentioned embodiment just illustrates.Compound lens 12a ~ 12h is except above-mentioned mode, and in various embodiments, also can be the difference any combination of above-mentioned feature, the utility model does not limit.In addition, if after the compound lens 12a ~ 12h of above-mentioned different embodiment being replaced the compound lens 12 of above-mentioned light-emitting device 1, the light-emitting device obtained is the same can be realized just can reaching at lower cost being lifted out angular, to reach the object of high angle luminous intensity distribution.
Thus, by the structure of above-mentioned exposure, light-emitting device and variation pattern thereof just can reach at lower cost and be lifted out angular, to reach the object of high angle luminous intensity distribution, and then increase the luminous mass of light-emitting device.
In sum, pass through the first lens section to be totally reflected mode according to a kind of light-emitting device of the present utility model, first group of light illuminating module sent is penetrated by the first lens section; By the second lens section to be totally reflected mode, second group of light illuminating module sent is penetrated by the 4th lens section; Scioptics portion is to be totally reflected mode, and the 3rd group of light illuminating module sent are penetrated by the 4th lens section and penetrated by the 4th lens section by the 4th group of light that illuminating module sends by the 4th lens section.Thus realize being lifted out angular, to reach the light-emitting device of high angle luminous intensity distribution.
In sum, according in light-emitting device of the present utility model, by the second connecting portion of compound lens around and connect the first connecting portion, and lens section around and connect the second connecting portion, and lens section is to be totally reflected mode at least one times, penetrated by lens section with a group light that illuminating module is sent.In addition, further by lampshade being located on illuminating module and compound lens, and the cross section of lampshade has the imaginary line of Breadth Maximum, lampshade is divided into the firstth district and the secondth district by this imaginary line, and illuminating module and compound lens correspondence are positioned at the firstth district and away from the secondth district, thus realize just can reaching at lower cost being lifted out angular, to reach the light-emitting device of high angle luminous intensity distribution object.
The foregoing is only illustrative, and nonrestrictive.Anyly do not depart from spirit of the present utility model and category, and to its equivalent modifications of carrying out or change, all should be contained in the claim of enclosing.
Claims (10)
1. a light-emitting device, is characterized in that comprising:
Illuminating module;
Compound lens, be arranged at above described illuminating module, and comprise the first connecting portion, the second connecting portion and lens section, described second connecting portion around and connect described first connecting portion, described lens section around and connect described second connecting portion, and described lens section is to be totally reflected mode at least one times, a group light described illuminating module sent is penetrated by described lens section; And
Lampshade, cover on described illuminating module and described compound lens, the cross section of described lampshade has the imaginary line of Breadth Maximum, and described lampshade is divided into the firstth district and the secondth district by described imaginary line, and described illuminating module and described compound lens correspondence are positioned at described firstth district and away from described secondth district.
2. light-emitting device according to claim 1, it is characterized in that, wherein said first connecting portion, described second connecting portion and described lens section form annular accommodation space, and described illuminating module has at least one light emitting diode, and described light emitting diode is arranged at described annular accommodation space.
3. light-emitting device according to claim 1, is characterized in that, the light distribution angle of wherein said lens section is 60 degree to 160 degree.
4. light-emitting device according to claim 1, is characterized in that, wherein said first connecting portion, described second connecting portion and described lens section are formed in one.
5. light-emitting device according to claim 1, is characterized in that comprising further:
Base, engages with described lampshade, and carries described illuminating module and described compound lens; And
Lamp holder, engages with described base.
6. light-emitting device according to claim 5, is characterized in that, wherein said base has radiator structure.
7. light-emitting device according to claim 1, is characterized in that, wherein said second connecting portion or described lens section have light emergence face, and described light emergence face has micro-structural.
8. light-emitting device according to claim 7, is characterized in that, the cross sectional shape of wherein said micro-structural is wavy or arc or zigzag.
9. light-emitting device according to claim 1, is characterized in that, wherein said second connecting portion or described lens section have light emergence face, and described light emergence face is arcwall face.
10. light-emitting device according to claim 1, is characterized in that, wherein said second connecting portion or described lens section have light emergence face, and described light emergence face is arcwall face, and has micro-structural.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520842336.2U CN205137113U (en) | 2015-10-28 | 2015-10-28 | Light -emitting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520842336.2U CN205137113U (en) | 2015-10-28 | 2015-10-28 | Light -emitting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205137113U true CN205137113U (en) | 2016-04-06 |
Family
ID=55622904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520842336.2U Expired - Fee Related CN205137113U (en) | 2015-10-28 | 2015-10-28 | Light -emitting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205137113U (en) |
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2015
- 2015-10-28 CN CN201520842336.2U patent/CN205137113U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20160406 Termination date: 20191028 |