CN103836402A - Lighting bulb - Google Patents
Lighting bulb Download PDFInfo
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- CN103836402A CN103836402A CN201210492541.1A CN201210492541A CN103836402A CN 103836402 A CN103836402 A CN 103836402A CN 201210492541 A CN201210492541 A CN 201210492541A CN 103836402 A CN103836402 A CN 103836402A
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- light
- lighting
- bulb housing
- bulb
- transmissive
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Abstract
The invention discloses a lighting bulb which comprises a light-transmitting bulb shell body, a circuit board and a side-direction light-emitting device. The light-transmitting bulb shell body is provided with an opening, the opening is covered with the circuit board, the side-direction light-emitting device comprises a light guide column structure and an upper light-emitting type light-emitting diode, an inclined reflection layer is formed in the light guide column structure, the upper light-emitting type light-emitting diode is arranged on the circuit board and below the light guide column structure, and light emitted by the upper light-emitting type light-emitting diode enters in the light guide column structure in an incident mode, is reflected by the inclined reflection layer, and enters in the light-transmitting bulb shell body in a lateral incident mode mode. Therefore, the lighting bulb enables light to enter in the bottom side edge area which is arranged on the light-transmitting bulb shell body in an incident mode and cannot be easily irradiated by the light, the problems that due to the fact that in the prior art, light can be emitted out of a gap of the bulb shell body, light use efficiency is low, and the light is leaked, and therefore the lighting angle and the light use efficiency of the lighting bulb can be effectively improved.
Description
Technical field
The present invention relates to a kind of lighting bulb, particularly relate to a kind of laterally luminous lighting bulb to transmissive bulb housing of side light-emitting device that uses.
Background technology
General traditional lighting bulb is to heat the luminous incandescent lamp bulb of tungsten filament mode, but in recent years in order to meet environmental protection and energy-conservation demand, use light emitting diode (Light Emitting Diode, LED) for light source is to replace the light emitting diode bulb of tungsten filament in response to giving birth to.But, owing to being subject to the restriction of lighting angle (approximately 120 °) of light emitting diode, therefore, light emitting diode bulb only has the light angle of 120 ° of left and right conventionally, its light angle much smaller than incandescent lamp bulb (approximately 300 °) so can cause many restrictions to light emitting diode bulb in illumination application.In addition, there is light emitting diode to be directly arranged on bulb shell the design of the light angle to increase light emitting diode bulb although existing, but the light that is reflected back light emitting diode by transmissive bulb housing also can be easily used for the breach of diode installed from bulb shell to be penetrated, thereby cause the problems such as the low and light leak of light service efficiency.
In the prior art, although occur light emitting diode to be directly arranged on bulb shell the design of the light angle to increase light emitting diode bulb existing, this design also can bring too complexity and the shortcoming such as visual effect is not good of light emitting diode bulb overall process simultaneously.
Summary of the invention
One of object of the present invention is to provide a kind of laterally luminous lighting bulb to transmissive bulb housing of side light-emitting device that uses, to solve the above problems.
The invention provides a kind of lighting bulb, described lighting bulb comprises a transmissive bulb housing, a circuit board and a side light-emitting device.Described transmissive bulb housing has an opening.Described circuit board covers on described opening.Described side light-emitting device comprises a light guide column structure and at least one upper light-emitting diode (led).In described light guide column structure, be formed with an inclined reflection layer.Described upper light-emitting diode (led) is installed on described circuit board and is arranged under described light guide column structure, and the light that described upper light-emitting diode (led) is launched is incident in described light guide column structure and after the reflection by described inclined reflection layer, is laterally incident to described transmissive bulb housing.
Described light guide column structure can comprise a leaded light cylinder and a sunk structure.Described leaded light cylinder is arranged on described upper light-emitting diode (led).Described sunk structure is formed on described leaded light cylinder, and described inclined reflection layer is formed on described sunk structure, described inclined reflection layer be also used for reflection from described transmissive bulb housing be reflected back described the light of light-emitting diode (led).
Described transmissive bulb housing can be greater than the reflection material that 90 ﹪ and absorptivity be less than 1 ﹪ by reflectivity and be formed.
The scattering material that described transmissive bulb housing can be greater than 50 ﹪ by mist degree is formed.
Described transmissive bulb housing can be made up of foaming PET material.
The reflectivity that relatively approaches a first area of described side light-emitting device on described transmissive bulb housing can be greater than the reflectivity of a relative second area away from described side light-emitting device on described transmissive bulb housing.
The present invention also provides a kind of lighting bulb, and described lighting bulb comprises a transmissive bulb housing, a circuit board and a side light-emitting device.Described transmissive bulb housing has an opening.Described circuit board covers on described opening.Described side light-emitting device comprises at least one side light-emitting diode (led) and a package casing.Described side light-emitting diode (led) is installed on described circuit board, is used for laterally emission of light to described transmissive bulb housing.Described package casing is covered on described side light-emitting diode (led) so that described side light-emitting diode (led) is packaged on described circuit board.
Described package casing can reflect material composition for the light reflection of side light-emitting device described in directive being returned to described transmissive bulb housing by height.
Described side light-emitting device can also comprise a reflecting layer, is formed on described package casing and described circuit board, is used for reflecting the light that is reflected back described circuit board from described transmissive bulb housing.
The present invention also provides a kind of lighting bulb, and described lighting bulb comprises a transmissive bulb housing, a circuit board and at least one light emitting diode.Described transmissive bulb housing is greater than by reflectivity reflection material that 90 ﹪ and absorptivity be less than 1 ﹪ and is formed and have an opening.Described circuit board covers on described opening.Described light emitting diode is installed on described circuit board, is used for emission of light to described transmissive bulb housing.
According to technique scheme, the present invention at least has following advantages and beneficial effect compared to prior art: the present invention uses the laterally luminous design that shoots to the light of side light-emitting device to transmissive bulb housing and reflection of side light-emitting device, so that light can be incident to the bottom side edge regions that is not easy to be irradiated to by light on transmissive bulb housing, and that in solution prior art, mentions can penetrate from the breach of bulb shell the problems such as the low and light leak of the light service efficiency that causes because of light, thereby effectively promote light angle and the light service efficiency of lighting bulb.In addition, utilize if add transmissive bulb housing high reflection characteristic so that light can be in transmissive bulb housing multiple reflections and utilize transmissive bulb housing to there is high scattering properties so that the distribution of light in transmissive bulb housing designs more uniformly, the integral illumination angle of lighting bulb provided by the present invention can increase widely, and is not subject to the too small impact of the lighting angle of light emitting diode own.
Brief description of the drawings
The inside schematic diagram that Fig. 1 is the lighting bulb that proposes according to the first embodiment of the present invention;
Fig. 2 is the side light-emitting device of Fig. 1 and the exploded perspective view of circuit board;
The inside schematic diagram that Fig. 3 is the lighting bulb that proposed according to a second embodiment of the present invention; And
The inside schematic diagram of the lighting bulb that Fig. 4 proposes for a third embodiment in accordance with the invention.
Wherein, description of reference numerals is as follows:
10,10', 100 lighting bulb 12 transmissive bulb housings
13 opening 14 circuit boards
16,102 side light-emitting device 18 light guide column structures
22 leaded light cylinder 24 sunk structures
26 inclined reflection layer 28 first area
30 second area 106 package casings
108 reflecting layer
Light-emitting diode (led) on 20
104 side light-emitting diode (led)s
Detailed description of the invention
Please refer to Fig. 1, the inside schematic diagram of the lighting bulb 10 that Fig. 1 proposes for one first embodiment according to the present invention.As shown in Figure 1, lighting bulb 10 comprises a transmissive bulb housing 12, a circuit board 14, and a side light-emitting device 16.Transmissive bulb housing 12 has an opening 13, and circuit board 14 be covered on accordingly on opening 13 with the common accommodating side light-emitting device 16 of transmissive bulb housing 12, wherein transmissive bulb housing 12 can be greater than the reflection material that 90 ﹪ and absorptivity be less than 1 ﹪ by reflectivity and formed, reflectivity herein can utilize following formula simple defining it.
Reflectivity=1-(absorptivity+penetrance)
In brief, in the time that light is incident to jobbie, light can produce reflection, penetrate and absorbing phenomenon, under the prerequisite that is 1, in the time that reflectivity more approaches 1, represents that the reflection efficiency of this object is higher at hypothesis incident light quantity; Otherwise, if reflectivity is less than 50 ﹪, represent that this object has higher absorptivity and penetrance.In sum, transmissive bulb housing 12 can be the bulb shell with high reflection efficiency, so that light can be at the interior multiple reflections of transmissive bulb housing 12, thereby reaches that light can be incident on the diverse location on transmissive bulb housing 12 and the object penetrating.In addition, the scattering material that transmissive bulb housing 12 can be further greater than 50 ﹪ by mist degree is formed, that is to say, in this embodiment, transmissive bulb housing 12 can be preferably by the material with high reflectance and high scattered power (as foaming PET (Polyethylene Terephthalate, PET) etc.) form, whereby, except can cause above-mentioned light can the effect of multiple reflections, transmissive bulb housing 12 can further make light incident thereon produce scattering, so that the distribution of light in transmissive bulb housing 12 is more even.
Next, referring to Fig. 1 and Fig. 2, Fig. 2 is the side light-emitting device 16 of Fig. 1 and the exploded perspective view of circuit board 14, from Fig. 1 and Fig. 2, side light-emitting device 16 comprises that a light guide column structure 18 and at least one upper light emitting-type (top view) light emitting diode 20(show one in Fig. 1, but not limit by this), in this embodiment, light guide column structure 18 comprises a leaded light cylinder 22 and a sunk structure 24.Leaded light cylinder 22 is arranged on light-emitting diode (led) 20, sunk structure 24 is formed on leaded light cylinder 22, one 26, inclined reflection layer is to be formed on sunk structure 24, whereby, inclined reflection layer 26 can be used to reflection and is reflected back the light of light-emitting diode (led) 20 from transmissive bulb housing 12, and that is mentioned to solve in prior art can penetrate the light service efficiency that caused lowly and the problem such as light leak from the breach of bulb shell because of light.In addition, the light that upper light-emitting diode (led) 20 is launched can be incident in leaded light cylinder 22, and by laterally penetrating after the reflection of inclined reflection layer 26, can be irradiated to the effect of the bottom side edge regions that is not easy to be irradiated to by light on transmissive bulb housing 12 to reach light.The structural design of above-mentioned light guide column structure 18 can be not limited to the first embodiment, it also can change employing light guide column structure 18 for the directly design of a formation solid construction (namely omitting the configuration of sunk structure 24) in the inner of inclined reflection layer 26, as for adopting which kind of structural design, it is looked closely the practical application of lighting bulb 10 and determines.
Should be noted, in order to prevent that further the light that above-mentioned side direction penetrates from can directly penetrate from the bottom side edge regions of transmissive bulb housing 12, in this embodiment, the reflectivity of a first area 28 of nearly side light-emitting device 16 of connecting on transmissive bulb housing 12 can be preferably more than on transmissive bulb housing 12 relatively the reflectivity away from a second area 30 of side light-emitting device 16, as for the configuration design of first area 28 and second area 30, for instance, it can be as shown in Figure 1, but not limit by this.Whereby, the first area 28 of transmissive bulb housing 12 can have relatively high reflectivity, even therefore in the time being subject to the light direct projection of above-mentioned side direction ejaculation, transmissive bulb housing 12 can utilize the high reflection characteristic of first area 28 to stop light directly to penetrate, and so can positively prevent from occurring on transmissive bulb housing 12 problem of bright dark inequality.
By above-mentioned configuration, as shown in Figure 1, in the time of upper light-emitting diode (led) 20 emission of light, the light that upper light-emitting diode (led) 20 is launched can enter in leaded light cylinder 22, and in the time being incident to the inclined reflection layer 26 being positioned on sunk structure 24, be tilted on the first area 28 that reflecting layer 26 laterally reflexes to transmissive bulb housing 12.Next,, because first area 28 has high reflection and high scattering properties, therefore, be incident to light on first area 28 and just there will be reflection and scattering phenomenon and continue to advance in transmissive bulb housing 12.Finally, as shown in Figure 1, by utilize transmissive bulb housing 12 high scattering properties so that the distribution of light in transmissive bulb housing 12 more evenly and utilize transmissive bulb housing 12 high reflection characteristic so that light in the design of transmissive bulb housing 12 interior multiple reflections, add light that light-emitting diode (led) 20 launches and can be tilted reflecting layer 26 and laterally reflex to the design of the bottom side edge regions (namely first area 28) that is not easy to be irradiated to by light on transmissive bulb housing 12, light can be incident to equably on each diverse location of transmissive bulb housing 12 and occur respectively the phenomenon (as shown in Figure 1) that small part penetrates, so can make lighting bulb 10 provide and be close to the luminous illumination of full angle, thereby promote widely light angle and the light service efficiency of lighting bulb 10.
In the present invention, the design of side light-emitting device can be not limited to above-described embodiment.For instance, please refer to Fig. 3, the inside schematic diagram of its lighting bulb 100 proposing for one second embodiment according to the present invention, the identical person of element numbers of the second embodiment and the first embodiment, represent that it has identical function or structure, therefore its related description repeats no more in this, lighting bulb 100 and lighting bulb 10 main difference parts are the design of side light-emitting device.As shown in Figure 3, lighting bulb 100 comprises transmissive bulb housing 12, circuit board 14, an and side light-emitting device 102, in this embodiment, side light-emitting device 102 comprises that at least one side light emitting-type (side view) light emitting diode 104(shows one in Fig. 3, but not limit by this) and a package casing 106, side light-emitting diode (led) 104 is installed on circuit board 14, be used for emission of light laterally to transmissive bulb housing 12, package casing 106 is covered on side light-emitting diode (led) 104 so that side light-emitting diode (led) 104 is packaged on circuit board 14, package casing 106 can preferably reflect material composition for the light reflection of directive side light-emitting device 102 is returned to transmissive bulb housing 12 by height.In addition, in this embodiment, side light-emitting device 102 can also comprise a reflecting layer 108, and reflecting layer 108 can be formed on package casing 106 and circuit board 14, is used for reflecting further the light that is reflected back side light-emitting device 102 from transmissive bulb housing 12.
By above-mentioned configuration, in the time of side light-emitting diode (led) 104 emission of light, the light that side light-emitting diode (led) 104 is launched can directly laterally be incident on the first area 28 of transmissive bulb housing 12.Next,, because first area 28 has high reflection and high scattering properties, therefore, be incident to light on first area 28 and just there will be reflection and scattering phenomenon and continue to advance in transmissive bulb housing 12.Finally, in like manner, as shown in Figure 3, by utilize transmissive bulb housing 12 high scattering properties so that the distribution of light in transmissive bulb housing 12 more evenly and utilize the high reflection characteristic of transmissive bulb housing 12 so that light can be in the design of transmissive bulb housing 12 interior multiple reflections, light can be incident to equably on each diverse location of transmissive bulb housing 12 and occur respectively the phenomenon (as shown in Figure 3) that small part penetrates, so can make lighting bulb 100 similarly can provide and be close to the luminous illumination of full angle, thereby promote widely light angle and the light service efficiency of lighting bulb 100.
It is worth mentioning that, the mentioned light guide column structure of the first embodiment can be an omissible configuration, thereby reach the object of the structural design of simplifying lighting bulb, for instance, its relevant configuration can be as shown in Figure 4, its inside schematic diagram that is the lighting bulb 10' that proposes according to of the present invention 1 the 3rd embodiment, in brief, lighting bulb 10' utilizes the direct emission of light of light emitting diode 16 to the transmissive bulb housing 12 that is greater than reflection material that 90 ﹪ and absorptivity be less than 1 ﹪ by reflectivity and forms, so that light multiple reflections in transmissive bulb shell 12 bodies, thereby make light can be incident to equably on each diverse location of transmissive bulb housing 12 and occur respectively the phenomenon that small part penetrates, so can increase the integral illumination angle of lighting bulb 10'.As for the related description of each assembly (namely circuit board 14 and light emitting diode 16) of other extending design of transmissive bulb housing 12 (as transmissive bulb housing 12 can be further greater than by mist degree the design that the scattering material of 50 ﹪ is formed) and lighting bulb 10', it can be analogized with reference to above-described embodiment, therefore repeat no more in this.
Compared to prior art, the present invention uses the laterally luminous design that shoots to the light of side light-emitting device to transmissive bulb housing and reflection of side light-emitting device, so that light can be incident to the bottom side edge regions that is not easy to be irradiated to by light on transmissive bulb housing, and in solution prior art, mention because light can penetrate from the breach of bulb shell the problems such as the low and light leak of the light service efficiency that causes, thereby effectively promote light angle and the light service efficiency of lighting bulb.In addition, utilize if add transmissive bulb housing high reflection characteristic so that light can be in transmissive bulb housing multiple reflections and utilize transmissive bulb housing to there is high scattering properties so that the distribution of light in transmissive bulb housing designs more uniformly, the integral illumination angle of lighting bulb provided by the present invention can increase widely, and is not subject to the too small impact of the lighting angle of light emitting diode own.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (16)
1. a lighting bulb, is characterized in that, described lighting bulb comprises:
One transmissive bulb housing, has an opening;
One circuit board, is covered on described opening; And
One side light-emitting device, comprising:
One light guide column structure, is formed with an inclined reflection layer in it; And
At least one upper light-emitting diode (led), be installed on described circuit board and be arranged under described light guide column structure, the light that described upper light-emitting diode (led) is launched is incident in described light guide column structure and after the reflection by described inclined reflection layer, is laterally incident to described transmissive bulb housing.
2. lighting bulb as claimed in claim 1, is characterized in that, described light guide column structure comprises:
One leaded light cylinder, is arranged on described upper light-emitting diode (led); And
One sunk structure, is formed on described leaded light cylinder, and described inclined reflection layer is formed on described sunk structure, described inclined reflection layer be also used for reflection from described transmissive bulb housing be reflected back described the light of light-emitting diode (led).
3. lighting bulb as claimed in claim 1, is characterized in that, described transmissive bulb housing is greater than by reflectivity the reflection material that 90 ﹪ and absorptivity be less than 1 ﹪ and is formed.
4. lighting bulb as claimed in claim 3, is characterized in that, the scattering material that described transmissive bulb housing is greater than 50 ﹪ by mist degree is formed.
5. lighting bulb as claimed in claim 4, is characterized in that, described transmissive bulb housing is made up of the PET material that foams.
6. lighting bulb as claimed in claim 3, it is characterized in that, the reflectivity that relatively approaches a first area of described side light-emitting device on described transmissive bulb housing is greater than the reflectivity of a relative second area away from described side light-emitting device on described transmissive bulb housing.
7. a lighting bulb, is characterized in that, described lighting bulb comprises:
One transmissive bulb housing, has an opening;
One circuit board, is covered on described opening; And
One side light-emitting device, comprising:
At least one side light-emitting diode (led), is installed on described circuit board, is used for laterally emission of light to described transmissive bulb housing; And
One package casing, is covered on described side light-emitting diode (led) so that described side light-emitting diode (led) is packaged on described circuit board.
8. lighting bulb as claimed in claim 7, is characterized in that, described package casing reflects material composition for the light reflection of side light-emitting device described in directive being returned to described transmissive bulb housing by height.
9. lighting bulb as claimed in claim 8, is characterized in that, described side light-emitting device also comprises a reflecting layer, is formed on described package casing and described circuit board, is used for reflecting the light that is reflected back described circuit board from described transmissive bulb housing.
10. lighting bulb as claimed in claim 7, is characterized in that, described transmissive bulb housing is greater than by reflectivity the reflection material that 90 ﹪ and absorptivity be less than 1 ﹪ and is formed.
11. lighting bulbs as claimed in claim 10, is characterized in that, the scattering material that described transmissive bulb housing is greater than 50 ﹪ by mist degree is formed.
12. lighting bulbs as claimed in claim 11, is characterized in that, described transmissive bulb housing is made up of the PET material that foams.
13. lighting bulbs as claimed in claim 10, it is characterized in that, the reflectivity that relatively approaches a first area of described side light-emitting device on described transmissive bulb housing is greater than the reflectivity of a relative second area away from described side light-emitting device on described transmissive bulb housing.
14. 1 kinds of lighting bulbs, is characterized in that, described lighting bulb comprises:
One transmissive bulb housing, is greater than by reflectivity reflection material that 90 ﹪ and absorptivity be less than 1 ﹪ and is formed and have an opening;
One circuit board, is covered on described opening; And
At least one light emitting diode, is installed on described circuit board, is used for emission of light to described transmissive bulb housing.
15. lighting bulbs as claimed in claim 14, is characterized in that, the scattering material that described transmissive bulb housing is greater than 50 ﹪ by mist degree is formed.
16. lighting bulbs as claimed in claim 15, is characterized in that, described transmissive bulb housing is made up of the PET material that foams.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210492541.1A CN103836402A (en) | 2012-11-27 | 2012-11-27 | Lighting bulb |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210492541.1A CN103836402A (en) | 2012-11-27 | 2012-11-27 | Lighting bulb |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103836402A true CN103836402A (en) | 2014-06-04 |
Family
ID=50800169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210492541.1A Pending CN103836402A (en) | 2012-11-27 | 2012-11-27 | Lighting bulb |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103836402A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070097681A1 (en) * | 2005-11-01 | 2007-05-03 | Chich Robert H | Lighting device |
| JP2007294143A (en) * | 2006-04-21 | 2007-11-08 | Daikin Ind Ltd | Lighting system and bed provided with lighting system |
| CN201582693U (en) * | 2009-12-25 | 2010-09-15 | 宁波安迪光电科技有限公司 | Led down lamp |
| CN202302817U (en) * | 2011-09-19 | 2012-07-04 | 山水照明科技(常熟)有限公司 | Light emitting diode (LED) bulb lamp |
| CN202546346U (en) * | 2012-03-09 | 2012-11-21 | 深圳嘉信高能源技术股份有限公司 | LED (Light Emitting Diode) lamp tube capable of emitting light uniformly |
-
2012
- 2012-11-27 CN CN201210492541.1A patent/CN103836402A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070097681A1 (en) * | 2005-11-01 | 2007-05-03 | Chich Robert H | Lighting device |
| JP2007294143A (en) * | 2006-04-21 | 2007-11-08 | Daikin Ind Ltd | Lighting system and bed provided with lighting system |
| CN201582693U (en) * | 2009-12-25 | 2010-09-15 | 宁波安迪光电科技有限公司 | Led down lamp |
| CN202302817U (en) * | 2011-09-19 | 2012-07-04 | 山水照明科技(常熟)有限公司 | Light emitting diode (LED) bulb lamp |
| CN202546346U (en) * | 2012-03-09 | 2012-11-21 | 深圳嘉信高能源技术股份有限公司 | LED (Light Emitting Diode) lamp tube capable of emitting light uniformly |
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Application publication date: 20140604 |