CN204285325U - A kind of bulb expanding electro-optical device and adopt expansion electro-optical device - Google Patents
A kind of bulb expanding electro-optical device and adopt expansion electro-optical device Download PDFInfo
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- CN204285325U CN204285325U CN201420771095.2U CN201420771095U CN204285325U CN 204285325 U CN204285325 U CN 204285325U CN 201420771095 U CN201420771095 U CN 201420771095U CN 204285325 U CN204285325 U CN 204285325U
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- light source
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- shaven head
- optical device
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Abstract
The utility model relates to a kind of expansion electro-optical device, be located at light source body top and carry out control light, comprise and expand shaven head and expand light beam, described expansion shaven head is in bowl-shape, the bare headed surface of described expansion is provided with some through holes, and described expansion light beam is located at the bottom of described expansion shaven head for expanding shaven head and described light source body described in interval.The utility model utilizes the reflection of expansion electro-optical device and the through hole expanded on electro-optical device can be easy to realize the bright dipping of bulb lamp wide-angle; Expand electro-optical device structure simple, handling ease simultaneously.
Description
Technical field
The utility model particularly relates to a kind of bulb expanding electro-optical device and adopt expansion electro-optical device.
Background technology
LED, compared with conventional light source, has many merits, as: long service life, power consumption are low, the response time is fast, security reliability is strong, luminance purity is high, environmental protection etc.Until 2014, the bulb lamp of traditional 40W has occupied 40% share of U.S.'s illumination market.LED will substitute this market gradually due to many merits such as efficient and high reliabilities, as a rule, the LEDbulb lamp of one 5 watts just can replace the incandescent lamp of 40 watts, when LED light source is applied in bulb lamp, because its one side is luminous, be difficult to the requirement realizing more than 230 ° lighting angles.
The method being usually used in solving LEDbulb lamp wide-angle luminous intensity distribution is in the market form LED light source being arranged into three-dimensional light source, the benefit of this method is the requirement being easy to meet small-power more than 230 ° lighting angles, if but want to accomplish high-power, not only the problem of heat is difficult to solve, and cost can increase.In addition, on market, the visible method for solving LEDbulb lamp wide-angle luminous intensity distribution also has the form adopting long-distance fluorescent powder or light pipe, making light source inner at bulb housing has been just be greater than the lighting angle of 180 °, thus changes the characteristic of LED light source one side luminescence in bulb lamp.There is power and do problem that is little and cost up in this method, and luminous efficiency can decrease equally.
Utility model content
The technical problems to be solved in the utility model is: realize LED light source rising angle more than 230 °, and solving the problem that the heating of mode under equal-wattage is large, cost is high of relative three-dimensional light source, long-distance fluorescent powder, the utility model provides a kind of and expands electro-optical device and adopt the bulb expanding electro-optical device to solve the problems referred to above.
The utility model solves the technical scheme that its technical problem adopts: a kind ofly expand electro-optical device, be located at light source body top and carry out control light, comprise and expand shaven head and expand light beam, described expansion shaven head is in bowl-shape, the bare headed surface of described expansion is provided with some through holes, and described expansion light beam is located at the bottom of described expansion shaven head for expanding shaven head and described light source body described in interval.
Described through hole is surperficial for the center of circle is distributed in expansion shaven head by different radii circumference with the center expanding shaven head surface, and the distribution density of described through hole is successively decreased along expanding bare headed center gradually to expanding bare headed edge.
The diameter dimension of described through hole successively decreases along expanding bare headed center gradually to the bare headed edge of expansion.Expand the distributed quantity of through hole on electro-optical device and size from center to edge in the trend of successively decreasing gradually, this makes it possible to make full use of the light that light source sends, realize wide-angle specular removal.
Described expansion shaven head covers described light source body and extends to outside described light source body, and the surface of described expansion electro-optical device is coated with reflectorized material.Be coated with reflectorized material and can strengthen reflecting effect.
The gross area of described through hole is 0.3-0.4 with the ratio of the gross area expanding shaven head surface, namely expands the ratio of total surface area before bare headed perforated area and its non-perforate.Draw through experiment many times, when the via area offered and expansion electro-optical device gross area ratio are between 0.3-0.4, light utilization efficiency is the highest.
A kind of bulb adopting above-mentioned expansion electro-optical device, also include lamp body, bulb housing and light source substrate, described light source substrate carries described expansion electro-optical device and is located at described lamp body top, described bulb housing covers on described lamp body top to hold described light source substrate and described expansion electro-optical device, described expansion light beam one end is connected with light source substrate, the other end is connected with expansion shaven head, and faced by described light source substrate, the one side of bulb housing is provided with the LED light source corresponding with described lead to the hole site.
Consider the size of lamp bulb cell-shell, the diameter expanding electro-optical device should be excessively not near from bulb housing yet, describedly expands bare headed edge and be not less than 1.5cm to the distance of bulb housing.
The center of described expansion shaven head is 5mm-8mm to the distance of light source substrate, and the radius of described expansion shaven head is not less than the LED light source edge of most extension on light source substrate.Show through many experiments, the center expanding shaven head is 5mm-8mm to the distance of light source substrate, and the radius expanding shaven head to be not less than on light source substrate the LED light source edge of most extension, light reflecting effect the best.
Described LED light source is for plural number and with described light source substrate center for center of circle circumference is distributed on described light source substrate.LED light source heating is comparatively large, and especially increase power, circumference is distributed with and is beneficial to heat radiation.
The described radius expanding shaven head is greater than the distance of light source substrate center to the LED light source of most extension.LED light source arrangement is near light source substrate center, and the light sent is by expanding electro-optical device, and major part can be reflected on light source substrate, and the utilization rate not only reducing light also can cause the light of wide-angle region to supply; And LED light source arrangement is compared by light source substrate edge, light has larger probability to be reflected to angular regions beyond-90 °-90 °, half light intensity angle.
The beneficial effects of the utility model are, the utility model is a kind of to be expanded electro-optical device and adopts the bulb expanding electro-optical device, utilizes the reflection of expanding electro-optical device and the through hole expanded on electro-optical device, can be easy to realize the bright dipping of bulb lamp wide-angle; Expand electro-optical device structure simple, handling ease, reduces the difficulty of processing simultaneously; Reduce caloric value; The position of LED light source arranges to combine expands electro-optical device, and the light that reasonable distribution light source sends, can realize the efficiency utilization of light; This bulb shapes size is similar to traditional bulb lamp, is more conducive to mass modularity and produces and replace.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the explosive view that the utility model adopts the bulb expanding electro-optical device,
Fig. 2 is that the utility model adopts the bulb installation diagram expanding electro-optical device,
Fig. 3 is the structure chart that the utility model expands electro-optical device.
In figure 1, lamp body, 2, bulb housing, 3, light source substrate, 4, expand electro-optical device, 41, expand light beam, 42, expand shaven head, 5, through hole, 6, LED light source.
Detailed description of the invention
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with the utility model.
As shown in Figure 3, a kind of expansion electro-optical device, is located at light source body top and carries out control light, comprise and expand shaven head 42 and expand light beam 41, expand shaven head 42 in bowl-shape, expand bare headed 42 surfaces and be provided with some through holes 5, expand light beam 41 and be located at the bottom of expansion shaven head 42 for expanding shaven head 42 and light source body described in interval.
Through hole 5 is surperficial for the center of circle is distributed in expansion shaven head 42 by different radii circumference with the center expanding bare headed 42 surfaces, and the distribution density of through hole 5 is successively decreased along expanding bare headed 42 centers gradually to expanding bare headed 42 edges.The diameter dimension of through hole 5 successively decreases along expanding bare headed 42 centers gradually to bare headed 42 edges of expansion.The marginal portion expanding shaven head 42 is protruded to the side away from light source body.The surface expanding electro-optical device 4 is coated with reflectorized material.The gross area of through hole 5 is 0.3-0.4 with the ratio of the gross area expanding bare headed 42 surfaces.
As shown in Figure 1-2, a kind of bulb adopting expansion electro-optical device, also include lamp body 1, bulb housing 2 and light source substrate 3, light source substrate 3 carries described expansion electro-optical device 4 and is located at lamp body 1 top, bulb housing 2 to hold light source substrate 3 and to expand electro-optical device 4 at lamp body 1 top, expands light beam 41 one end and is connected with light source substrate 3, and the other end is connected with expansion shaven head 42, light source substrate 3 is provided with the LED light source 6 corresponding with through hole 5 position in the face of the one side of bulb housing 2, and light source substrate 3 is also coated with reflectorized material.The edge expanding shaven head 42 is not less than 1.5cm to the distance of bulb housing 2.The center expanding shaven head 42 is 5mm-8mm to the distance of light source substrate 3, and the radius expanding bare headed 42 to be not less than on light source substrate 3 LED light source 6 edge of most extension.Bulb housing 2 is spherical or elliposoidal.Bulb housing 2 has light diffusate material, described light diffusate material is blended in bulb housing 2 inside or is coated in the inside and outside surface of bulb housing 2.LED light source 6 has multiple, is plural number, can be intervally arranged, and also can two combinations be arranged in for a pair in default angle, multiple LED light source 6 with light source substrate 3 center for center of circle circumference is distributed on light source substrate 3.Expand the radius of shaven head 42 slightly larger than the distance of light source substrate (3) center to the LED light source 6 of most extension.The angle a that the center of bulb housing 2 is formed to bulb housing 2 and the beeline of lamp body 1 intersection is not less than 270 degree.
Operation principle: when after bulb energising, LED light source 6 emits beam, a light part is undertaken reflective by the reflectorized material expanding coating on electro-optical device 4, another part is gone out by through hole 5 direct projection of expanding on electro-optical device 4, by expanding the light that electro-optical device 4 reflects, being reflected on light source substrate 3, light source substrate 3 has also been coated with reflectorized material, reflected away by light source substrate 3, the light that bulb is sent is more even.By such mode, the mode of compare three-dimensional light source or long-distance fluorescent powder realizes LED illumination wide-angle, with low cost, if simultaneously increase the power of LED light source, relative to the mode of three-dimensional light source and long-distance fluorescent powder, caloric value is lower.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this utility model technological thought, can carry out various change and amendment completely.The technical scope of this utility model is not limited to the content on description, must determine its technical scope according to right.
Claims (10)
1. one kind is expanded electro-optical device (4), be located at light source body top and carry out control light, it is characterized in that: comprise and expand shaven head (42) and expand light beam (41), described expansion shaven head (42) is in bowl-shape, described expansion shaven head (42) surface is provided with some through holes (5), and described expansion light beam (41) is located at the described bottom expanding shaven head (42) and is used for expanding shaven head (42) and described light source body described in interval.
2. expansion electro-optical device (4) according to claim 1, it is characterized in that: described through hole (5) is that the center of circle is distributed in expansion shaven head (42) surface by different radii circumference to expand the center on shaven head (42) surface, the distribution density of described through hole (5) is successively decreased along expanding bare headed (42) center gradually to expansion shaven head (42) edge.
3. expansion electro-optical device (4) according to claim 1 and 2, is characterized in that: the diameter dimension of described through hole (5) successively decreases along expanding shaven head (42) center gradually to expansion shaven head (42) edge.
4. expansion electro-optical device (4) according to claim 3, it is characterized in that: described expansion shaven head (42) covers described light source body and extends to outside described light source body, and the surface of described expansion electro-optical device (4) is coated with reflectorized material.
5. the one stated according to claim 1 expands electro-optical device (4), it is characterized in that: the gross area of described through hole (5) is 0.3-0.4 with the ratio of the gross area expanding shaven head (42) surface.
6. one kind adopts the bulb of the expansion electro-optical device (4) according to any one of claim 1-5, it is characterized in that: also include lamp body (1), bulb housing (2) and light source substrate (3), described light source substrate (3) carries described expansion electro-optical device (4) and is located at described lamp body (1) top, described bulb housing (2) covers on described lamp body (1) top to hold described light source substrate (3) and described expansion electro-optical device (4), described expansion light beam (41) one end is connected with light source substrate (3), the other end is connected with expansion shaven head (42), faced by described light source substrate (3), the one side of bulb housing (2) is provided with the LED light source (6) corresponding with described through hole (5) position.
7. bulb according to claim 6, is characterized in that: the described edge expanding shaven head (42) is not less than 1.5cm to the distance of bulb housing (2).
8. bulb according to claim 6, it is characterized in that: the center of described expansion shaven head (42) is 5mm-8mm to the distance of light source substrate (3), and the radius of described expansion shaven head (42) is not less than LED light source (6) edge of most extension on light source substrate (3).
9. bulb according to claim 6, is characterized in that: described LED light source (6) is plural number and is that center of circle circumference is distributed on described light source substrate (3) with described light source substrate (3) center.
10. bulb according to claim 6, is characterized in that: the described radius expanding shaven head (42) is greater than the distance of light source substrate (3) center to the LED light source (6) of most extension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420771095.2U CN204285325U (en) | 2014-12-09 | 2014-12-09 | A kind of bulb expanding electro-optical device and adopt expansion electro-optical device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420771095.2U CN204285325U (en) | 2014-12-09 | 2014-12-09 | A kind of bulb expanding electro-optical device and adopt expansion electro-optical device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204285325U true CN204285325U (en) | 2015-04-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420771095.2U Expired - Fee Related CN204285325U (en) | 2014-12-09 | 2014-12-09 | A kind of bulb expanding electro-optical device and adopt expansion electro-optical device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204285325U (en) |
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2014
- 2014-12-09 CN CN201420771095.2U patent/CN204285325U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20201209 |
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| CF01 | Termination of patent right due to non-payment of annual fee |