CN203249171U

CN203249171U - Reflection cup and LED lamp using same

Info

Publication number: CN203249171U
Application number: CN 201320193587
Authority: CN
Inventors: 谢青波
Original assignee: Individual
Current assignee: Shenzhen Aurora Technology Co Ltd
Priority date: 2013-04-17
Filing date: 2013-04-17
Publication date: 2013-10-23
Anticipated expiration: 2023-04-17

Abstract

The utility model relates to LED illumination and provides a reflection cup and an LED lamp using the reflection cup. The reflection cup comprises a cup body with a light emitting opening in the bottom, wherein the inner wall of the cup body is provided with a plurality of reflective curved surfaces which enable light of the light emitting opening to be reflected once and then emitted out of the cup body, all the reflective curved surfaces are sequentially connected with one another in the direction from a cup bottom to a cup opening, every two adjacent reflective curved surfaces are arranged to form an angle, and the cup opening of the cup body extends inward. The reflecting route of the light can be effectively controlled through the structure that the plurality of reflective curved surfaces are sequentially connected with one another so that the light is relatively concentrated, the number of times of reflection is small, meanwhile, a lens in a traditional reflection cup is abandoned so that no yellow light can appear to influence vision, and the light energy utilization rate is further greatly improved. The utility model further provides the LED lamp using the reflection cup, the light leakage is little, the light rays are concentrated, no fatigue occurs to the vision of people, and the LED lamp and the reflection cup are matched with each other for use and very suitable for vehicle lamps.

Description

Reflector and the LED lamp that uses this reflector

Technical field

The utility model relates to LED illumination, the LED lamp that relates in particular to a kind of reflector and used this reflector.

Background technology

Along with the development of LED technology, the LED lighting has more and more widely utilization in numerous industries, particularly on room lighting, outdoor lighting and motor vehicle.Because LED is spot light, generally on LED, all be covered with reflector, but the interior wall of cup of reflector is single level and smooth parabolic surface design, the rim of a cup angle differs, and bigger than normal, it is inhomogeneous to cause penetrating the light shape, and light diffusion angle is bigger than normal, a large amount of light are directly penetrated by the reflector rim of a cup, so that luminous energy is wasted, illuminance is lower and poor visual effect; Part LED lamp is provided with lens in reflector, can control the light irradiating angle of led light source, can play the effect of optically focused and diffused light, but light is being worn the loss that can produce luminous energy when penetrating lens, light transmittance is lower, and can produce gold-tinted behind the lens reflection, reduce the global illumination degree, produce visual fatigue.

The utility model content

The purpose of this utility model is to overcome the defective of prior art, provides a kind of be used to making light concentrate the higher reflector of the efficiency of light energy utilization and the LED lamp that has adopted this reflector.

For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of reflector is provided, comprise the cup that has light-emitting window at the bottom of a glass, described cup inwall has some light that make described light-emitting window penetrate described cup after primary event ring-type reflective surface, each described reflective surface connects successively to the rim of a cup direction at the bottom of cup, and two adjacent described reflective surfaces are the angle setting, and the rim of a cup of described cup extends to the inside.

Particularly, each described reflective surface is the parabola of the same focal length around the parabola of described reflector axis rotation formation.

Further, described parabola is 8, and each described parabolical focal length is 2 millimeters, and two relative bright dipping angles of described rim of a cup are the 45-55 degree.

Particularly, described parabola is 9, and each described parabolical focal length is 2.4 millimeters, and two relative bright dipping angles of described rim of a cup are the 40-48 degree.

Further, the expanded angle of each described parabolic horizontal direction is less than 4 degree, and the expanded angle of vertical direction is less than 1.5 degree.

Further, described parabola is 10, and each described parabolical focal length is 1.8 millimeters, and two relative bright dipping angles of described rim of a cup are the 40-50 degree.

Particularly, described parabola is 12, and each described parabolical focal length is 2.2 millimeters, and two relative bright dipping angles of described rim of a cup are the 49-59 degree.

Further, the expanded angle of each described parabolic horizontal direction is less than 3 degree, and the expanded angle of vertical direction is less than 25 degree.

The utility model also provides a kind of LED lamp, comprises LED lamp pearl and reflector, and described reflector is above-mentioned each described reflector.

Further, described LED lamp pearl is protruded the light-emitting window of described reflector and is fixedly connected with described reflector.

The utlity model has following technique effect:

The inwall of reflector forms for several reflective surfaces in the utility model, light can be at most only can be by penetrating in the reflector through primary event, each reflective surface connects successively and have certain angle adjacent reflective surface to rim of a cup at the bottom of by cup.Compare so traditional reflector that only has a reflective surface, this programme is freer to the adjusting of opticpath, angle according to each reflective surface setting, can be so that the light that is sent by reflector can be effectively controlled, the rim of a cup of reflector is for contraction-like to the inside simultaneously, the light that is directly penetrated reflector by light source is less, can make the light that sends more concentrated, and this reflector does not use lens, light need not refraction and can penetrate, its order of reflection has at most also for once greatly reduced the loss of luminous energy, has improved light extraction efficiency.And adopting the LED lamp of this reflector, and luminous concentrating, the side light leak is less, and the global illumination degree is high, can not produce the vision that gold-tinted affects the people.

Description of drawings

Fig. 1 is the utility model LED lamp preferred embodiment structural representation;

Fig. 2 is that the utility model reflector has 8 paraboloidal example structure schematic diagrames;

Fig. 3 is that Fig. 2 embodiment is by the top view of rim of a cup direction;

Fig. 4 is that the utility model reflector has 12 paraboloidal example structure schematic diagrames;

Fig. 5 is that Fig. 4 embodiment is by the top view of rim of a cup direction.

The specific embodiment

In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.

Referring to Fig. 1, the utility model embodiment provides a kind of reflector, mainly comprise cup 1 structure, 11 centres offer a light-emitting window 111 at the bottom of cup, the inwall 12 of cup 1 then is to have comprised several ring-type reflective surfaces 121, the direction of each reflective surface 121 along the cup end 11 to rim of a cup 13 connects successively, and between two adjacent reflective surfaces 121, has certain angle, can be so that the light that is sent by light-emitting window 111 at most only can penetrate cup 1 via primary event, the simultaneously rim of a cup 13 trend cups 1 inboard extension of reflector, so just can greatly reduce reflection and directly penetrated the light of cup 1, so that it is comparatively concentrated to penetrate the light of cup 1, light gathering degree is high, and in the present embodiment, above light-emitting window 111, do not install lens, the light that penetrates can not produce gold-tinted, affect people's visual fatigue, light is also can the produce power loss when the lens further, be subjected to the light transmittance of lens to affect larger, greatly reduce the effective range of light, this reflector then such problem can not occur, this reflector uses many curved design simultaneously, light throws away according to the angle of appointment, be radiated at the scope zone of wanting under the use, play effectively, rationally utilize luminous energy.

Particularly, each reflective surface 121 on the reflector inwall 12 is parabola, and each parabola all is to adopt the parabola of the same focal length to form around the axis A of reflector rotation.In more existing reflectors, particularly on car light, it generally all is to adopt single parabola as reflective surface 121, so that the light that penetrates is approximate collimated light beam, the brightness of light is not very high, be unfavorable for the car light design, and in this programme, reflective surface 121 is set as several identical parabolas, but at an angle again between each parabola, so just can so that the light beam on each parabola converges, reach preferably spotlight effect around reflector axis A, be conducive to improve the car light range, guarantee the traffic safety in evening.

Referring to Fig. 2 and Fig. 3, further, in a kind of scheme of present embodiment, cup 1 is light-focusing type cup 1a, and reflector inwall 12a has 8 parabola face 121a, and the parabola focal length that rotates around axis A then all is 2 millimeters.This structure can be guaranteed under the bright enough prerequisite of sidelight, can also reduce the light that just directly penetrates cup 1a without reflector inwall 12a reflection, the light-ray condensing degree is higher, having in the situation of light source, the light that penetrates in the cup 1a is a circular light beam by the ejaculation of cup 1a middle part substantially, and light beam is tiny but brightness high, far firing range, bright-dark cut is clear and definite, also meets the car light rules when this reflector uses on car light.Under this structure, limit further the shape of cup 1a, so that the angle between the two relative light that penetrated by reflector rim of a cup 13a is the 45-55 degree, and as a more excellent scheme, angle is made as 50 degree, it is compared with existing reflector, angle has reduced 28.5%, and on being applied to car light the time, each parabolic 121a expanded angle in the horizontal direction should less than 4 the degree, and the expanded angle of in the vertical direction should less than 1.5 the degree, reduced so a large amount of light directly to penetrate reflector cup 1a, so that the concentration class of light is further optimized, light substantially all is close proximity to the both sides of the axis A of reflector, and the brightness of light beam is higher, and range is farther, the efficiency of light energy utilization is high, is beneficial to very much the high beam of car light.Cup for this kind light-focusing type, other design can also be arranged, the reflector inwall has 9 parabolas, parabola focal length around axis A rotation all is 2 millimeters, and the angle between the two relative light that penetrated by the reflector rim of a cup is the 40-48 degree, certainly each parabola also should be less than 1.5 degree at the expanded angle of vertical direction, expanded angle on the horizontal direction also should be less than 4 degree, use this reflector also can reach good spotlight effect, beam brightness is high, range is far away, and the efficiency of light energy utilization is also higher, also is applicable to the high beam of car light.

Referring to Fig. 4 and Fig. 5, in another program, cup 1 is astigmatic type cup 1b, and the number of parabolic 121b is made as 12, is 2.2 millimeters around the parabolical focal length of axis A rotation.It is also more concentrated that light in this structure is compared existing reflector, but it is compared light with a upper scheme and has certain diffusance, the light that is penetrated by this structure cup 1b also has certain distribution at rim of a cup 13b, and the light beam in rim of a cup 13b centre is larger, light is distribution uniform in cup 1b, so that whole light type is fuller, illumination amplitude increases, and the cup 1b side light leak of this structure is less, and the efficiency of light energy utilization is high.Under this structure, the angle of rim of a cup 13b place two relative light can be controlled in the 49-59 degree further, angle can be made as 54 degree in the more excellent scheme, more existing rim of a cup angle has reduced 21.4%, when this reflector is applied on the car light, each parabolic 121b expanded angle in the horizontal direction should be less than 3 degree, and should be less than 25 degree at the expanded angle of vertical direction, like this so that directly to penetrate the light of cup 1b also less, improved the light-ray condensing degree, guarantee lamplight brightness, light is tending towards soft even simultaneously, and it has certain diffusance, rim of a cup at reflector evenly distributes, can not produce dazzling effect, meet the laws and regulations requirement of FMVSS108, be beneficial to very much the headlamp of car light.Cup for the astigmatic type of this kind, other design can also be arranged, the reflector inwall has 10 parabolas, parabola focal length around axis A rotation all is 1.8 millimeters, and the angle between the two relative light that penetrated by the reflector rim of a cup is the 40-50 degree, certainly each parabola also should be less than 25 degree at the expanded angle of vertical direction, expanded angle on the horizontal direction also should be less than 3 degree, use this reflector also can play the effect that improves the light-ray condensing degree, the efficiency of light energy utilization is high, and is soft even but light also is tending towards, and has certain diffusance in reflector rim of a cup scope, can not produce glare, relatively be applicable to the headlamp of car light yet.

Refer again to Fig. 1, present embodiment also provides a kind of LED lamp, comprise LED lamp pearl 2 and above-mentioned reflector, LED lamp pearl stretch into reflector cup 1 light-emitting window 111 and be connected and fixed with cup 1, the light that sends of LED lamp pearl 2 just can all be injected in the cup 1 like this, can effectively avoid the light leak of LED lamp, improve the efficiency of light energy utilization.Certainly LED lamp pearl 2 and cup what be connected and fixed employing is demountable structure, such as the screw connection etc., can make things convenient for the replacing of LED lamp pearl 1 or reflector.Usually, more excellent being applicable on the car light of this LED lamp, and all be that several support the use together, certainly also can the outdoor and indoor use in industrial and mineral, square, market, navigation etc. for this LED lamp.

The above only is the utility model preferred embodiment; its structure is not limited to the above-mentioned shape of enumerating; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.

Claims

1. reflector, comprise the cup that has light-emitting window at the bottom of a glass, it is characterized in that: described cup inwall has some light that make described light-emitting window penetrate described cup after primary event ring-type reflective surface, each described reflective surface connects successively to the rim of a cup direction at the bottom of cup, and two adjacent described reflective surfaces are the angle setting, and the rim of a cup of described cup extends to the inside.

2. reflector as claimed in claim 1 is characterized in that: each described reflective surface is the parabola that the parabola of the same focal length forms around described reflector axis rotation.

3. reflector as claimed in claim 2, it is characterized in that: described parabola is 8, and each described parabolical focal length is 2 millimeters, and two relative bright dipping angles of described rim of a cup are the 45-55 degree.

4. reflector as claimed in claim 2, it is characterized in that: described parabola is 9, and each described parabolical focal length is 2.4 millimeters, and two relative bright dipping angles of described rim of a cup are the 40-48 degree.

5. such as claim 3 or 4 described reflectors, it is characterized in that: the expanded angle of each described parabolic horizontal direction is less than 4 degree, and the expanded angle of vertical direction is less than 1.5 degree.

6. reflector as claimed in claim 2, it is characterized in that: described parabola is 10, and each described parabolical focal length is 1.8 millimeters, and two relative bright dipping angles of described rim of a cup are the 40-50 degree.

7. reflector as claimed in claim 2, it is characterized in that: described parabola is 12, and each described parabolical focal length is 2.2 millimeters, and two relative bright dipping angles of described rim of a cup are the 49-59 degree.

8. such as claim 6 or 7 described reflectors, it is characterized in that: the expanded angle of each described parabolic horizontal direction is less than 3 degree, and the expanded angle of vertical direction is less than 25 degree.

9. a LED lamp comprises LED lamp pearl and reflector, it is characterized in that: described reflector is each described reflector of claim 1-8.

10. LED lamp as claimed in claim 9, it is characterized in that: described LED lamp pearl is protruded the light-emitting window of described reflector and removably connects with described reflector.