CN204922847U - Lamps and lanterns reflector subassembly - Google Patents
Lamps and lanterns reflector subassembly Download PDFInfo
- Publication number
- CN204922847U CN204922847U CN201520667227.1U CN201520667227U CN204922847U CN 204922847 U CN204922847 U CN 204922847U CN 201520667227 U CN201520667227 U CN 201520667227U CN 204922847 U CN204922847 U CN 204922847U
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- foveal reflex
- reflector
- light source
- reflex body
- led light
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Abstract
The utility model relates to a lamps and lanterns, concretely relates to lamps and lanterns reflector subassembly, including reflector, LED light source and base plate, the bottom at the reflector is established to base plate and LED light source, the reflector includes outer refractive body and central reflector, the center reflector is the cavity column and locates inside the outer refractive body, leave the interval space between lower boundary and the LED light source of center reflector, adopt the utility model discloses on technical scheme's lamps and lanterns reflector subassembly, more efficient messenger LED's light project and is shown up, the vice facula problem of traditional reflector has been solved.
Description
Technical field
The utility model relates to a kind of light fixture, is specifically related to a kind of light fixture reflector assembly.
Background technology
Along with the development of LED technology, LED, with efficient and energy-conservation feature, is widely used at lighting field.Traditional LED spotlight comprises reflector, is positioned at the LED light source bottom reflector, is arranged at the lens in LED light source front and is arranged at the clear glass of reflector the rim of a bowl.Light is directed to the inner surface of reflector by the lens of the light that LED light source produces through its front, by the inner surface of reflector, light is outwards reflected through glass clearly, thus plays illuminating effect.
But, traditional LED lamp has following technical problem: one is because LED light source belongs to area source, can be to all the winds luminous close to 180 degree, therefore the light that wherein a part sends of LED light source cannot be gone out by the internal surface reflection of reflector, but directly project illuminated object, around illuminated object, so just produce a circle not by the light of reflector Angle ambiguity, be also often called as secondary hot spot.Two is that the light sent due to LED does not all send via after reflection device or reflection from lens or refraction, and a part of light also by reflection and bounce back LED light source itself, can result in shot-light light efficiency low.
Utility model content
The purpose of this utility model is to provide a kind of light fixture reflector assembly, with the secondary hot spot of the reflector overcoming the LED lamp of prior art, problem that light efficiency is low.
In order to solve the problems of the technologies described above, the utility model provides a kind of light fixture reflector assembly, and comprise reflector, LED light source and substrate, described substrate and LED light source are located at the bottom of reflector, and described reflector comprises outer refractive body and foveal reflex body; Described foveal reflex body is hollow columnar and is located at described outer refractive body inside; Pitch space is left between the lower boundary of described foveal reflex body and LED light source.
Preferably, described foveal reflex body is in the diminishing cylindrical shape of internal diameter or elliptic cylindrical shape from top to bottom.
Preferably, on same plane, the light-emitting window edge of described outer refractive body and the incidence surface outer rim of described LED light source form a critical direct projection angle θ; Described foveal reflex body is less than or equal to the product of the difference of the bottom radius of described foveal reflex body and the radius of described LED light source and the tangent value of described critical direct projection angle θ from the distance h of described LED light source.
Preferably, described light fixture reflector assembly also comprises center lens, and it is inner that described center lens is located at described foveal reflex body, and the outer rim of described center lens matches with the inwall of described foveal reflex body.
Preferably, the periphery wall of described foveal reflex body is connected by the internal perisporium of connection rib with outer refractive body.
Preferably, described connection rib and foveal reflex body by integral forming.
Preferably, described foveal reflex body is split-type structural, the second reflecting part that described foveal reflex body comprises the first reflecting part and is connected with the first reflecting part symmetry.
Preferably, described outer refractive body is split-type structural; The second light-reflecting portion that described outer refractive body comprises the first light-reflecting portion and is connected with the first light-reflecting portion symmetry.
A kind of light fixture reflector assembly provided by the utility model, it has following technique effect: owing to leaving pitch space between the lower boundary of foveal reflex body and LED light source, pitch space between the lower boundary of foveal reflex body and LED light source can and the outer refractive body of reflector between form conjugate relation, therefore the light the sent some of LED light source is gone out via outer refractive body internal surface reflection, some is through foveal reflex body and center lens reflection or reflect away, overcomes the problem that light source in prior art directly projects the secondary hot spot of illuminated object; The light sent due to LED all sends via foveal reflex body and center lens reflection or refraction, thus the more high efficiency ray cast of LED that makes is on face to be illuminated, solves the secondary hot spot problem of traditional reflector up hill and dale.
Accompanying drawing explanation
Fig. 1 is the structural representation of light fixture reflector assembly of the present utility model;
Fig. 2 is the explosive view of light fixture reflector assembly of the present utility model.
In figure: 1-reflector, 2-substrate, 3-LED light source, the outer refractive body of 11-, 111-first light-reflecting portion, 112-second light-reflecting portion, 12-foveal reflex body, 121-first reflecting part, 122-second reflecting part, 13-connection rib, 14-center lens.
Detailed description of the invention
Below in conjunction with drawings and Examples, technical solutions of the utility model are further illustrated:
As depicted in figs. 1 and 2: the utility model provides a kind of light fixture reflector assembly, comprises reflector 1, LED light source 3 and substrate 2, and substrate 2 and LED light source 3 are located at the bottom of reflector 1, and reflector 1 comprises outer refractive body 11 and foveal reflex body 12; Foveal reflex body 12 is hollow columnar and is located at outer refractive body 11 inside; Pitch space is left between the lower boundary of foveal reflex body 12 and LED light source 3.
In addition, the reflected light back of foveal reflex body 12, in the diminishing cylindrical shape of internal diameter or elliptic cylindrical shape from top to bottom, conveniently to be gone out by foveal reflex body 12.
Owing to considering that LED light source 3 is not all retained by foveal reflex body 12, guarantee that the part that light that LED light source 3 sends does not inject foveal reflex body 12 directly can not penetrate from the light-emitting window of outer refractive body 11 simultaneously, therefore, at grade, the light-emitting window edge of described outer refractive body 11 and the incidence surface outer rim of described LED light source 3 form a critical direct projection angle θ; Described foveal reflex body 12 should be less than or equal to the product of the difference of the bottom radius of described foveal reflex body 12 and the radius of described LED light source 3 and the tangent value of described critical direct projection angle θ from the distance h of described LED light source 3.
In order to meet the lamp distribution requirement of different focal, described light fixture reflector assembly also comprises center lens 14, and it is inner that this center lens 14 is located at foveal reflex body 12.The conveniently installation of center lens 14 and foveal reflex body 12, the outer rim of center lens 14 matches with the inwall of foveal reflex body 12.
For the ease of by firm to foveal reflex body 12 and reflector 1, the periphery wall of foveal reflex body 12 is connected with the internal perisporium of outer refractive body 11 by connection rib 13.
More preferably, connection rib 13 is one-body molded, cost-saving with foveal reflex body 12, increases connection rib 13 and the connection compactness of foveal reflex body 12 simultaneously, is convenient to firm for foveal reflex body 12.
More preferably, foveal reflex body 12 is split-type structural, the second reflecting part 122 that foveal reflex body 12 comprises the first reflecting part 121 and is connected with the first reflecting part 121 symmetry, facilitates installation and the use of foveal reflex body.
More preferably, outer refractive body 11 is split-type structural; The second light-reflecting portion 112 that outer refractive body 11 comprises the first light-reflecting portion 111 and is connected with the first light-reflecting portion 111 symmetry, further facilitates and is linked together with foveal reflex body 12 by outer refractive body 11 by arranging connection rib.
When reflector work, be arranged on the light LED some that the LED light source on the substrate of the bottom of reflector sends and go out via reflector internal surface reflection, a part of through foveal reflex body and center lens reflection or reflect away.
Adopt the light fixture reflector assembly of technical solutions of the utility model, the light sent by making LED all reflects via foveal reflex body and center lens or refraction sends, the more high efficiency ray cast of LED that makes, on face to be illuminated, solves the secondary hot spot problem of traditional reflector.
The above is only preferred embodiment of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model know-why; can also make some improvement and replacement, these improve and replace and also should be considered as protection domain of the present utility model.
Claims (8)
1. a light fixture reflector assembly, is characterized in that: comprise reflector, LED light source and substrate, and described substrate and LED light source are located at the bottom of reflector, and described reflector comprises outer refractive body and foveal reflex body; Described foveal reflex body is hollow columnar and is located at described outer refractive body inside; Pitch space is left between the lower boundary of described foveal reflex body and LED light source.
2. light fixture reflector assembly according to claim 1, is characterized in that: described foveal reflex body is in the diminishing cylindrical shape of internal diameter or elliptic cylindrical shape from top to bottom.
3. light fixture reflector assembly according to claim 1 and 2, is characterized in that: on same plane, and the light-emitting window edge of described outer refractive body and the incidence surface outer rim of described LED light source form a critical direct projection angle θ; Described foveal reflex body is less than or equal to the product of the difference of the bottom radius of described foveal reflex body and the radius of described LED light source and the tangent value of described critical direct projection angle θ from the distance h of described LED light source.
4. light fixture reflector assembly according to claim 1 and 2, is characterized in that: also comprise center lens, and it is inner that described center lens is located at described foveal reflex body, and the outer rim of described center lens matches with the inwall of described foveal reflex body.
5. light fixture reflector assembly according to claim 1 and 2, is characterized in that: the periphery wall of described foveal reflex body is connected by the internal perisporium of connection rib with outer refractive body.
6. light fixture reflector assembly according to claim 5, is characterized in that: described connection rib and foveal reflex body by integral forming.
7. light fixture reflector assembly according to claim 6, is characterized in that: described foveal reflex body is split-type structural, the second reflecting part that described foveal reflex body comprises the first reflecting part and is connected with the first reflecting part symmetry.
8. light fixture reflector assembly according to claim 6, is characterized in that: described outer refractive body is split-type structural; The second light-reflecting portion that described outer refractive body comprises the first light-reflecting portion and is connected with the first light-reflecting portion symmetry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520667227.1U CN204922847U (en) | 2015-08-31 | 2015-08-31 | Lamps and lanterns reflector subassembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520667227.1U CN204922847U (en) | 2015-08-31 | 2015-08-31 | Lamps and lanterns reflector subassembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204922847U true CN204922847U (en) | 2015-12-30 |
Family
ID=54971971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520667227.1U Active CN204922847U (en) | 2015-08-31 | 2015-08-31 | Lamps and lanterns reflector subassembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204922847U (en) |
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2015
- 2015-08-31 CN CN201520667227.1U patent/CN204922847U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |