CN102410496A

CN102410496A - Light source condensation device and fixture thereof

Info

Publication number: CN102410496A
Application number: CN201010287356XA
Authority: CN
Inventors: 刘克迅
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-09-20
Filing date: 2010-09-20
Publication date: 2012-04-11

Abstract

The invention provides a light source condensation device and a fixture thereof, wherein the device can gather the projecting beams of the fixture into a small angle scope to project in a collimating way, so the central luminance within the projecting area scope of the collimation direction is increased. The invention is mainly characterized in that: at least one reflecting cup is arranged in front of a light source generating device in a reflecting cover, so the light which is emitted by the light source generating device can be emitted in the collimating way after the continuous reflection between the reflecting cover and the reflecting cup. Consequently, the device is used for projection lights, flashlights and illuminating fixture, the central luminance can be increased, and simultaneously the volume of the large power fixture is reduced.

Description

The beam condensing unit of light source and light fixture thereof

Technical field

The present invention relates to a kind of beam condensing unit and light fixture thereof of light source, especially be a kind of beam condensing unit that is applied to searchlight, flashlight, projecting lamp, illuminating lamp or similar lamp light source the place ahead.

Background technology

Along with the step arriving of science and technology life, lighting often still needs preferable brightness just more can meet popular expectation, but the design direction of lighting; Often all thinking deeply the power that how to strengthen light source, owing to increase the power of light source, though reached the demand of brightness; But also need spend bigger energy cost (for example: stronger electric power, than light source generators such as high-power LED and bulbs); Also produced simultaneously more heat energy, also reduced the service life of light fixture simultaneously, therefore for the light fixture that throws light on; Still need be only the direction that industry should be made great efforts to save the energy, environmental protection and to save cost.

The general existing light fixture that needs collimated illumination only is provided with a reflector usually around a light source generator (light emitting diode or bulb), can get to reflector in the hope of the light that makes this light source generator; Collimation penetrates again; But because there is a big opening in the place ahead of this reflector, so a part of light of light source generator is directly gone out towards this direction diffusion, so light is not all collimation ejaculations; So weakened the center brightness of projecting lamp the place ahead collimation ejaculation scope, the shortcoming of existing projection light fixture; This shortcoming is especially more obvious in the design that with the light emitting diode is light source generator; Because light emitting diode is the projection source of plane formula, therefore for the reflector of single radian, and can't with the light of all parallel projection all collimation penetrate; This LED power and diameter bigger (being large scale LED); This shortcoming is just more obvious, makes that when high-power light emitting diode was applied in projection, the brightness at its center is the ideal of expection not; This is the bottleneck of industry, can't effectively improve always.

The design of this kind specialty in the previous patent of existing beam condensing unit, is looked into just like No. 6896381 patent of United States Patent (USP), has disclosed a kind ofly with lens optics thereto, utilizes inner total reflection and refraction principle, (for example: the LED) purpose of optically focused reaches small-scale light sources; No. 6986593 patent of United States Patent (USP) and for example; Disclosed that a kind of (for example: LED) the place ahead is provided with lens, though can be effective for undersized light source, does not have the increase brightness of geometric ratio for more powerful light source with small-scale light sources; And the cost of making big lens is also more expensive; The function of bringing together for light does not also have good breakthrough design simultaneously, is existing not attaining to improve part, should design again.

Summary of the invention

Main purpose of the present invention provides a kind of and can the throw light of light fixture be pooled the projection of small angle range collimation, to increase the center brightness of projection scope; And reduce power consumption, principal character is: the light source generator the place ahead in a reflector is provided with a reflector at least, can make in the light that light source generator sends; The light that the diffusion of part orientating reflex cover opening direction goes out can be after the reflection of the place ahead reflector and collimation penetrates, and reduces the loss of light effectively; And the collimation that light is concentrated penetrates, and can make lighting improve center brightness (range is also far away), and reduces the consumption of the energy; So with this install usefulness in projecting lamp, flashlight, lighting; Not only can increase center brightness, simultaneously powerful light fixture had the function that reduces volume again, be characteristic of the present invention.

Description of drawings

Fig. 1 is the exploded view of first kind of embodiment of the present invention.

Fig. 2 is the three-dimensional cutaway view of first kind of embodiment of the present invention.

Fig. 3 is the sectional structure chart of first kind of embodiment of the present invention.

Fig. 4 is the structural representation of second kind of embodiment of the present invention.

Fig. 5 is the structural representation of the third embodiment of the present invention.

Fig. 6 is the 4th a kind of example structure sketch map of the present invention.

Fig. 7 is the 5th a kind of example structure sketch map of the present invention.

Fig. 8 is the 6th a kind of example structure sketch map of the present invention.

Fig. 9 is the 7th a kind of example structure sketch map of the present invention.

Figure 10 is the user mode sketch map of Fig. 9.

Description of reference numerals: 10-reflector; 11-reflects cambered surface; The 20-light shield; 21-detains edge; The 30-reflector; The 301-reflector; 31-external reflectance face; The 32-interior reflective surface; The 40-coating; The 41-coating; The 50-lamp body; The 51-light source generator; The 60-connector; The 70-reflector; The 71-side; The 710-opening; The 80-reflector; The 801-side; The 802-opening; The 81-reflector; The h-distance; The L-light beam; The L0-light beam; The L1-light beam; The L2-light beam; The L3-light beam.

The specific embodiment

Understand content of the present invention for your auditor can be known, only graphic with the description collocation, explain as after.

Please, be first kind of embodiment of the present invention, include primary structure what follows at least referring to Fig. 1, Fig. 2, shown in Figure 3:

One reflector 10 is formed with parabola or other aspheric reflection cambered surfaces 11 in inside, so that light beam L when an end-fire of this reflector 10 goes out, penetrates and make light beam L collimation towards the other end.

One reflector 30 is located at the inside of this reflector 10, and has same center line with reflector 10; This reflector 30 is formed with the external reflectance face 31 and the interior reflective surface 32 that can make the projection of light beam L collimation respectively; And this reflector 30 is injected end face with the light of reflector 10, between the horizontal line of this end face, leaves a segment distance h, and this distance h is use the most often with 3mm to 10mm; But in fact this distance is to adjust according to needing, and does not need special qualification; And because the setting of this distance h, can provide light beam L through smooth and easy not hindering more.

Therefore, this case is when implementing to become the light fixture of an energy-conservation beam condensing unit, like Fig. 1, shown in Figure 3; Inject the end group at reflector 10 with the light of reflector 30 and be provided with a lamp body 50; This lamp body 50 is provided with at least one light source generator 51, and this light source generator 51 can be light emitting diode (being LED), shown in the present invention is graphic; But also can equivalence be substituted by bulb; When the light beam L that sends when this light source generator 51 penetrates since around be provided with the reflection cambered surface 11 of reflector 10, add the external reflectance face 31 of light source generator 51 the place ahead reflectors 30 and the setting of interior reflective surface 32; Light beam L collimation is penetrated towards the other end, and effectively improving has the shortcoming that deflects away from diffused ray.

Wherein, this reflector 30 can be a kind of light penetrating object, like Fig. 2, shown in Figure 3, but the

coating

40,41 that pastes or be coated with reflection ray respectively in the outside and the inboard of this reflector 30, to form external reflectance face 31 and interior reflective surface 32; But when the utilization of reality changed, this

coating

40 or 41 also can be the outside or the inboard of coating reflector 30, so that light beam L causes monolateral refraction and reflection.

But this reflector 30 also can be to be processed by the metal of polishing, so that its outside and inboard itself promptly have smooth external reflectance face 31 and interior reflective surface 32.

The mode that multiple enforcement is arranged on combining between reflector 10 and the reflector 30; Like Fig. 1, Fig. 2, shown in Figure 3; It mainly is the light shield 20 of establishing a light-permeable; This light shield 20 can be fastened on the outer end of reflector 10 with the button edge 21 of periphery, and the medial surface of light shield 20 engages with reflector 30, and bonding be one of a kind of more convenient mode; Also can be as shown in Figure 5, the mode of compeling to fasten with embedding engages, and all can reach the purpose that the present invention designs.

Please referring to shown in Figure 6, be another kind of reflector 10 and the combination of reflector 30, be connected with several thin connector 60 between reflector 10 and the reflector 30; For example: the welding of metal, or special ejection formation, or simple bonding; Only this kind is technologic combination technology; Can existing technological means reach, belong to the existing skill aspect of utilization, promptly do not give unnecessary details.

Please referring again to shown in Figure 4; For more powerful light fixture, two (the present invention is as examples) or a plurality of reflector 30,301 can be set in reflector 10 of the present invention, a plurality of reflectors 30,301 that are a determining deviation promptly are set; Has same center line; And overlapping with the center line of reflector 10, then in the space of this each reflector 30,301 and reflector 10, light is reflected one by one and the collimation ejaculation.

Please referring to Fig. 1, shown in Figure 6; When the present invention is applied in light fixture, promptly form one have a beam condensing unit high-effect light fixture, promptly at the reflector 10 and reflector 30 rears of beam condensing unit of the present invention; Add a lamp body 50; This lamp body 50 has a light source generator 51 at least, and the end with light source generator 51 of this lamp body 50 is mounted on an end of reflector 10, and makes between light source generator 51 and the reflector 30 and leave distance; Make light can fully penetrate and give concentrated, this kind light fixture can have better illumination luminosity.

Please referring to shown in Figure 7; The characteristic that the present invention takes off on complying with; Can in like manner change reflector 70 and reflector 80 into rectangle (or square), and cooperate lamp body 50 to constitute a searchlight with light source generator 51, also can be as shown in Figure 8; Set up (but being not limited to) one deck reflector 81, become the design of multiple field.

Please referring to shown in Figure 8; The present invention uses in the occasion (for example: during car light) that needs the special angle illumination, can comply with and need cancel at the same side 71,801 of this square reflector 70 and reflector 80, and form opening as shown in Figure 9 710,802; In use; Shown in figure 10, central beam L0 sets out towards the place ahead, but not light beam L1, the L2 of opening 710,802 sides promptly are directed to central the place ahead; And this light beam L 3 with opening 710,802 sides can be penetrated by opening 710,802 sides of reflector 70 and reflector 80, and is more practical.

When doing actual test with content of the present invention, be about 32.042W/sr, in addition in 3m tests illumination at a distance and is about 427lux from the light source generator center in the central illumination intensity that is equiped with beam condensing unit light fixture of the present invention according to the inventor; Do not use the center intensity of conventional lamp of the present invention to be about 27.652W/sr and illumination is compared as 329lux; The present invention is certain, and spotlight effect is good, and can effectively promote illumination.

So when embodiment of the present invention, will have following advantage:

1. light source beam condensing unit of the present invention is located at the place ahead of lighting, by the light beam that light source generator sent; Through the reflection of one or more reflectors, cooperate original reflector to come the light beam of correcting oblique diffusion originally, can light beam be concentrated on collimation ejaculation in the low-angle scope; This following center brightness that can promote in the projection scope at the power that does not change light fixture, it is more clear to throw light on, and does not produce waste heat again; Also can save electric power energy, reduce cost, have the value of industrial circle.

2. design of the present invention can promptly reach the purpose of all light collimations under less light fixture volume size, existing curvature with the larger volume optical element more can size reduction, makes light fixture more light, thin, short, little, is another advantage of the present invention.

More than shown in be merely the preferred embodiments of the present invention, only be illustrative for the purpose of the present invention, and nonrestrictive.Understand the common knowledge personnel of this professional skill field tool, in spirit that claim of the present invention limited and scope, can carry out many changes, revise it, even equivalent change, but all will fall in protection scope of the present invention.

Claims

1. the beam condensing unit of a light source is characterized in that, includes at least:

One reflector is formed with parabola or other aspheric reflection cambered surfaces in inside, so that light beam when an end-fire of this reflector goes out, penetrates and make beam collimation towards the other end;

At least one reflector; Be located at the inside of this reflector, and have same center line with reflector, this reflector is formed with the external reflectance face and the interior reflective surface that can make the beam collimation projection respectively; And the light of this reflector and reflector is injected end face, between the horizontal line of this end face, leaves a segment distance.

2. the beam condensing unit of light source as claimed in claim 1 is characterized in that, this reflector is a light penetrating object, but and the coating that is provided with a reflection ray at least in the outside or the inboard of this printing opacity reflector, to constitute reflecting surface.

3. the beam condensing unit of light source as claimed in claim 1 is characterized in that, this reflector is a light penetrating object, but and in the outside of this printing opacity reflector and inboardly be equipped with the coating of a reflection ray and constitute reflecting surface.

4. the beam condensing unit of light source as claimed in claim 1 is characterized in that, this reflector is a metal material, and outside it and inboard is smooth external reflectance face and interior reflective surface.

5. the beam condensing unit of light source as claimed in claim 1 is characterized in that, this reflector and reflector be rectangle or foursquare one of them.

6. the beam condensing unit of light source as claimed in claim 5 is characterized in that, this rectangle or foursquare reflector and reflector are formed with opening at same side.

7. the beam condensing unit of light source as claimed in claim 1 is characterized in that, is connected by several thin connector between this reflector and the reflector.

8. the beam condensing unit of light source as claimed in claim 1 is characterized in that, set reflector is two in the reflector, and each reflector, has same center line, and overlapping with the center line of reflector.

9. the light fixture with beam condensing unit is characterized in that, includes at least:

At least one reflector is located at the inside of this reflector, and has same center line with reflector, and this reflector is formed with the external reflectance face and the interior reflective surface that can make the beam collimation projection respectively, and the light of this reflector and reflector is injected end face;

One lamp body has a light source generator at least, and the end with light source generator of this lamp body is mounted on an end of reflector, and leaves distance between light source generator and the reflector.

10. the light fixture with beam condensing unit as claimed in claim 9 is characterized in that the outer end of reflector is arranged with the light shield of a light-permeable, and this light shield has the button edge in periphery, and the inboard of light shield engages with reflector.