CN216644116U - High-brightness lighting device and lamp - Google Patents
High-brightness lighting device and lamp Download PDFInfo
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- CN216644116U CN216644116U CN202123337359.2U CN202123337359U CN216644116U CN 216644116 U CN216644116 U CN 216644116U CN 202123337359 U CN202123337359 U CN 202123337359U CN 216644116 U CN216644116 U CN 216644116U
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Abstract
The utility model discloses a high-brightness lighting device and a lamp, which comprise a first light source, wherein the first light source comprises a first light-emitting surface for emitting first light, and the first light-emitting surface is provided with a through hole; the light guide part is arranged on the first light source, one end of the light guide part comprises a light receiving surface, the other end of the light guide part comprises a light emitting surface, the second light enters the light guide part from the light receiving surface and is transmitted by the light guide part to be emitted from the light emitting surface to form third light, the light emitting surface is aligned to the through hole, the light emitting surface and the first light emitting surface emit light in the same direction, and the brightness of the third light emitted by the light emitting surface is 1.5 times greater than that of the first light emitted by the first light emitting surface.
Description
Technical Field
The utility model relates to the technical field of illumination, in particular to a light-emitting device for illuminating by using laser and an LED light source together.
Background
Ideally, the illumination field should be large and the center brightness should be bright enough. According to the conservation of etendue, when the total power of the light source is determined, the area of a light spot is inversely proportional to the brightness. Therefore, the spot area cannot be increased and the lighting device cannot be bright. Therefore, a plurality of light sources are used for light combination, and the light source with large spot area and brighter central brightness is obtained.
The existing light source light combining device generally combines light by materials side by side or combines light by a light combining device. The light combining device is generally complicated and increases the volume of the whole light emitting device, so that the light combining method has many disadvantages. First light source, second light source set up side by side when adopting side by side to close light, and this design far field closes the light effect better, but two luminous faculas can appear in the near field, and the influence to the illuminating effect is great this moment.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the traditional technology, and aims to overcome the defects of the prior art.
In order to solve the problems, the technical scheme adopted by the utility model is as follows: a high intensity lighting device characterized by: the LED lamp comprises a first light source, wherein the first light source comprises a first light emitting surface emitting first light, and a through hole is formed in the first light emitting surface; the light guide part is arranged on the first light source, one end of the light guide part comprises a light receiving surface, the other end of the light guide part comprises a light emitting surface, the second light enters the light guide part from the light receiving surface and is transmitted by the light guide part to be emitted from the light emitting surface to form third light, the light emitting surface is aligned to the through hole, the light emitting surface and the first light emitting surface emit light in the same direction, and the brightness of the third light emitted by the light emitting surface is 1.5 times greater than that of the first light emitted by the first light emitting surface.
As an improvement of the technical scheme: the LED lamp is characterized in that the first light source is composed of a plurality of first LED light sources formed by splicing and a fluorescent powder layer arranged on the light emitting surfaces of the first LED light sources, one surface, away from the LED light sources, of the fluorescent powder layer is a first light emitting surface, and the through hole penetrates through the fluorescent powder layer and a substrate of the first LED light sources.
As an improvement of the technical scheme: and a scattering sheet covers one side of the fluorescent powder layer, which is far away from the LED light source.
As an improvement of the technical scheme: the scattering sheet at least comprises two materials with different refractive indexes.
As an improvement of the technical scheme: the first light source is composed of an array of a plurality of first LED light sources in the same plane and a plurality of fluorescent sheets arranged in the light emitting direction of the first LED light sources, a first light emitting surface is formed on one surface, far away from the first LED light sources, of the fluorescent sheets, and the first LED light sources are arranged around the through hole.
As an improvement of the technical scheme: the fluorescent sheet comprises a transparent heat-conducting substrate and a fluorescent layer arranged on the surface of the substrate.
As an improvement of the technical scheme: the second light source comprises a second light emitting surface emitting second light, the second light emitting surface is aligned to the light receiving surface of the light guide piece, and a ceramic cushion block is arranged between the second light emitting surface and the light receiving surface.
As an improvement of the technical scheme: the second light source comprises a plurality of second LED light sources, and the light emitting surfaces of the second LED light sources are spliced in the same plane to form a second light emitting surface.
As an improvement of the technical scheme: the second light source includes a laser light source that emits laser light and a wavelength conversion device excited by the laser light, and the wavelength conversion device excited by the laser light emits second light.
Due to the fact that the technical scheme is adopted, compared with the prior art, the luminance of a light spot formed in a far field is increased by the mode of adding the second light source, and then the second light emitted by the second light source is received through the light guide piece, and the utilization rate of the second light is fully improved.
The utility model is further described with reference to the following figures and detailed description.
Drawings
Fig. 1 is a sectional view of a high brightness illumination device.
Fig. 2 is a view a-a of fig. 1.
Fig. 3 is a cross-sectional view of a high intensity lighting device.
Fig. 4 is a cross-sectional view of a phosphor sheet.
Fig. 5 is a cross-sectional view of a high intensity lighting device.
Fig. 6 is a cross-sectional view of a luminaire.
Detailed Description
Example 1:
as shown in fig. 1 and fig. 2, a high-brightness lighting device includes a first light source 101, where the first light source 101 includes a first light emitting surface 102 emitting a first light 110, and a through hole 103 is formed in the first light emitting surface 102; the light guide 105 comprises a light receiving surface 105a at one end and a light emitting surface 105b at the other end, the second light 111 enters the light guide 105 from the light receiving surface 105a and is emitted from the light emitting surface 105b after being transmitted by the light guide 105 to form third light 112, the light emitting surface 105b is aligned with the through hole 103, the light emitting surface 105b emits light in the same direction as the first light emitting surface 102, and the brightness of the third light 112 emitted from the light emitting surface 105b is 1.5 times greater than that of the first light 110 emitted from the first light emitting surface 102.
The first light source 101 includes a first light emitting surface 102 emitting a first light 110, and a through hole 103 is formed on the first light emitting surface 102, so that a dark area exists in a light spot formed in a far field by the first light 110 emitted from the first light emitting surface 102. The second light 111 emitted by the second light source 104 exits through the through hole 103 and is combined with the first light 110. In order to improve the utilization rate of the second light 111, the light guide 105 is added, the light receiving surface 105a of the light guide 105 is used for receiving the second light 111 emitted by the second light source 104, the light emitting surface 105b of the light guide 105 is aligned with the through hole 103, the light emitting surface 105b guides the second light 111 to the through hole 103 and then emits the third light 112, so that the second light 111 is conducted, the second light 111 is changed into the third light 112 with better uniformity in the process of conducting the second light 111 by the light guide 105, and the color of light spots of the third light 112 is more uniform. In order to improve the uniformity of the light spot formed by the final combination of the first light 110 and the third light 112, the first light emitting surface 102 and the light emitting surface 105b emit light in the same direction, and the light spot formed by the third light 112 emitted from the light emitting surface 105b coincides with the light spot formed by the first light 110, so that the uniformity of the finally formed light spot is better because the light spot formed by the first light 110 and the second light 111 coincides.
The brightness of the third light 112 emitted from the light-emitting surface 105b is 1.5 times greater than the brightness of the first light 110 emitted from the first light-emitting surface 102, and a part of the first light 110 and a part of the third light 112 emitted from the first light source 101 and the second light source 104 are combined. The brightness of the finally formed light spot is obviously increased, the area of the finally formed luminous light spot is ensured, and the light combination effect is more suitable for illumination. And the circuit and the heat dissipation design of the whole light-emitting device are simpler, the loss of the first light 110 and the second light 111 is smaller, and the utilization rate of light energy is improved.
According to the above analysis, the first light source 101 may have multiple forms or multiple light sources, as a preferred embodiment, the first light source 101 is composed of a plurality of first LED light sources 101a formed by splicing and a plurality of fluorescent layers 106 disposed on the light emitting surfaces of the first LED light sources, one surface of the fluorescent layers 106 away from the first LED light sources 101a is a first light emitting surface 106a, and the through holes 103 penetrate through the fluorescent layers 106, the first LED light sources 101a and the substrate at the bottom thereof. The LED light source has the advantages of a large light emitting surface, being capable of reflecting light of a color emitted by the LED light source, and the like, and being convenient for the fluorescent layer 106 to be disposed, the first light source 101 is formed by splicing a plurality of first LED light sources 101a, and the processing cost of the first light emitting surface 102 with a complicated shape can be reduced by splicing a plurality of first LED light sources 101 a.
Since the fluorescent layer 106 is directly disposed on the surface of the first light emitting surface 102, the uniformity of the first light 110 is low. In order to increase the homogeneity of the first light 110 emitted by the phosphor layer 106, the side of the phosphor layer 106 facing away from the first light source 101 is covered with a diffuser sheet 107. In this case, the diffuser sheet 107 makes the light spot formed by the first light 110 more suitable for the illumination field in order to improve the uniformity of the first light 110.
The diffusion sheet 107 serves to diffuse incident light. The scattering sheet 107 has various types according to scattering, and in a preferred embodiment, the scattering sheet 107 includes at least two materials with different refractive indexes inside. By using different refractive index material compositions, the first light 110 can be scattered after entering the scattering sheet 107.
In order to improve the utilization rate of the second light 111, the position relationship between the light guide 105 and the second light source 104 becomes more important, and in a preferred embodiment, the second light source 104 includes a second light emitting surface 108 for emitting the second light 111, the second light emitting surface 108 is aligned with the light receiving surface 105a of the light guide 105, and a ceramic spacer 109 is disposed between the second light emitting surface 108 and the light receiving surface 105 a. When the second light emitting surface 108 is aligned with the light receiving surface 105a, the utilization rate of the second light 111 can reach the maximum, and in order to avoid the friction of the light receiving surface 105a on the second light emitting surface 108 from affecting the light emitting effect of the second light 111, a ceramic cushion block 109 is padded between the second light emitting surface 108 and the light receiving surface 105 a.
In order to realize the above functions of the second light source 104, in a preferred embodiment, the second light source 104 includes a plurality of second LED light sources 104a, and light emitting surfaces of the plurality of second LED light sources are spliced in the same plane to form a second light emitting surface 108. The LED light source has a flat light emitting surface, which is beneficial for the light receiving surface 105a to receive the second light 111.
Example 2:
it is described in embodiment 1 that the first light source 201 and the second light source 204 can be implemented by various light emitting sources or various placement manners. And is not limited to the manner disclosed in embodiment 1.
As shown in fig. 3 and 4, in the high-brightness illumination device, the first light source 201 includes an array of a plurality of first LED light sources 201a in the same plane and a fluorescent sheet 206b disposed in the light emitting direction of the plurality of first LED light sources 201a, a first light emitting surface 206a is formed on a surface of the fluorescent sheet 206b away from the first LED light sources 201a, and the plurality of first LED light sources 201a are disposed around the through hole 203. In an actual use process, the first light emitting surface 202 of the first light source 201 may also be formed by an array of a plurality of first LED light sources 201a, and at this time, if the surface of each first LED light source 201a is coated with phosphor, a finally formed light spot has a dark area and is poor in uniformity. Therefore, we avoid the above problem by a method of disposing the fluorescent sheet 206b in the light emitting direction of the first LED light source 201 a. In order to ensure that the second light 211 emitted by the second light source 204 exits the through hole 203, the first LED light source 201a is arranged around the through hole 203.
The fluorescent sheet 206b includes a transparent heat conductive substrate 206c and a fluorescent layer 206 disposed on a surface of the substrate 206 c.
Example 3:
as with the first light source 301, the second light source 304 may be implemented in a variety of ways. As shown in fig. 5 and 6, the second light source 304 of the lamp includes a laser light source emitting laser light and a wavelength conversion device 330 excited by the laser light, and the wavelength conversion device 330 excited by the laser light emits second light 311. The laser source 320 emits laser with higher energy density, which is more suitable for increasing the light intensity of the far-field light spot.
Further comprising a lens 332 arranged in the direction of the first light 310 and the third light 312 or a reflector cup 331 arranged in cooperation with the high intensity lighting device.
The above detailed description of the specific embodiments of the present invention is the best mode for carrying out the present invention and should not be taken as limiting the scope of the present invention. Any equivalent modifications and substitutions for the utility model are within the scope of the protection of the present invention for those skilled in the art.
Claims (10)
1. A high intensity lighting device characterized by: the LED lamp comprises a first light source, wherein the first light source comprises a first light emitting surface emitting first light, and a through hole is formed in the first light emitting surface; the light guide part is arranged on the first light source, one end of the light guide part comprises a light receiving surface, the other end of the light guide part comprises a light emitting surface, the second light enters the light guide part from the light receiving surface and is transmitted by the light guide part to be emitted from the light emitting surface to form third light, the light emitting surface is aligned to the through hole, the light emitting surface and the first light emitting surface emit light in the same direction, and the brightness of the third light emitted by the light emitting surface is 1.5 times greater than that of the first light emitted by the first light emitting surface.
2. A high intensity illumination device as set forth in claim 1, wherein: the first light source is composed of a plurality of first LED light sources formed by splicing and fluorescent layers arranged on light emitting surfaces of the first LED light sources, one surface, far away from the first LED light sources, of each fluorescent layer is a first light emitting surface, and the through holes penetrate through the fluorescent layers and the first LED light sources.
3. A high intensity illumination device as set forth in claim 2, wherein: and a scattering sheet is covered on one side of the fluorescent layer, which is far away from the first light source.
4. A high intensity illumination device as set forth in claim 3, wherein: the scattering sheet at least comprises two materials with different refractive indexes.
5. A high intensity illumination device as set forth in claim 1, wherein: the first light source is composed of an array of a plurality of first LED light sources in the same plane and a plurality of fluorescent sheets arranged in the light emitting direction of the first LED light sources, a first light emitting surface is formed on one surface, far away from the first LED light sources, of the fluorescent sheets, and the first LED light sources are arranged around the through hole.
6. A high intensity lighting device as defined in claim 5, wherein: the fluorescent sheet comprises a transparent heat-conducting substrate and a fluorescent layer arranged on the surface of the substrate.
7. A high intensity lighting device as recited in claim 1, wherein: the second light source comprises a second light emitting surface emitting second light, the second light emitting surface is aligned to the light receiving surface of the light guide part, and a ceramic cushion block is arranged between the second light emitting surface and the light receiving surface.
8. A high intensity illumination device as set forth in claim 7, wherein: the second light source comprises a plurality of second LED light sources, and light emitting surfaces of the second LED light sources are spliced in the same plane to form a second light emitting surface.
9. A high intensity illumination device as set forth in claim 1, wherein: the second light source includes a laser light source that emits laser light and a wavelength conversion device excited by the laser light, and the wavelength conversion device excited by the laser light emits second light.
10. A light fixture, characterized by: a high intensity lighting device comprising any one of claims 1-9, further comprising a lens disposed in the direction of the first and third light emissions or a reflector cup disposed in cooperation with the high intensity lighting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123337359.2U CN216644116U (en) | 2021-12-28 | 2021-12-28 | High-brightness lighting device and lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123337359.2U CN216644116U (en) | 2021-12-28 | 2021-12-28 | High-brightness lighting device and lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216644116U true CN216644116U (en) | 2022-05-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123337359.2U Active CN216644116U (en) | 2021-12-28 | 2021-12-28 | High-brightness lighting device and lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216644116U (en) |
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2021
- 2021-12-28 CN CN202123337359.2U patent/CN216644116U/en active Active
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