CN201954348U

CN201954348U - LED light-distributing device of asymmetric light field

Info

Publication number: CN201954348U
Application number: CN2010206129102U
Authority: CN
Inventors: 刘宝旺
Original assignee: Beijing Xingguang Film and TV Equipment Technologies Co Ltd
Current assignee: Beijing Xingguang Film and TV Equipment Technologies Co Ltd
Priority date: 2010-11-18
Filing date: 2010-11-18
Publication date: 2011-08-31
Anticipated expiration: 2020-11-18

Abstract

An LED light-distributing device of an asymmetric light field belongs to the lighting appliance field. A step-shaped installing body (1) has a plurality of steps. Each step has two step sides. The steps are respectively provided with a reflecting device (3) and a circuit board (5) on the same sides. Each LED light source (6) is arranged on a corresponding step in a straight row and welded on a corresponding circuit board (5). Each LED light source (6) is provided with a corresponding batwing lens (7) which is fixedly equipped on a corresponding step side through a screw (9). One side of each batwing lens (7) shines an object (12) to be radiated with direct light (10) while the other side shines the object (12) with reflected light (11) reflected by the reflecting device (3). Each LED light source has the same beam angle and the same power. The LED light sources in two more colors are combined. The LED light-distributing device which has the advantages of simple structure, low manufacturing cost, long service lifetime, energy conservation, environmental protection and uniform intensity of illumination can satisfy the demands of a large-area asymmetric light field.

Description

A kind of LED light distribution device of asymmetric light field

Technical field

The utility model belongs to the ligthing paraphernalia field, relates to a kind of LED light distribution device of asymmetric light field.

Background technology

In the prior art,, during the theatrical stage illumination, must there be strip-light lamp and ground bank light to cooperate and shine the stage canopy of the heavens simultaneously for reaching desirable performing effect.Chinese patent ZL2008202338493 discloses a kind of great power LED strip-light lamp, compare with traditional halogen tungsten lamp light source, has lot of advantages, belong to cold light source, can reduce indoor environment temperature greatly, use and install reliably, long service life, energy-conserving and environment-protective, can produce the asymmetric light field that is fit to canopy of the heavens illumination, make the illumination under the different irradiation distances even, bright, light quality is soft, weak point is, must adopt the low-power LED light source of many different beam angles, regularly arranged integrated being installed on the installed surface that has different knuckles in the lamp body could produce the asymmetric light field that is fit to canopy of the heavens illumination, it is even to obtain far and near illumination, the irradiated area of illumination broadness, therefore, its complex structure, the cost of manufacture height, and the asymmetric light field that produces is not very good.

Summary of the invention

The technical problem that solves:

Adopt the led light source of many same light beam angles, equal-wattage, different colours, regular being installed on the stepped fixing body with reflex reflector, can overcome the deficiencies in the prior art, produce the asymmetric light field that is fit to canopy of the heavens illumination, obtain far and near illumination very evenly, the broad irradiated area of illumination, and simple in structure, cost of manufacture is low.

The technical scheme that adopts:

A kind of LED light distribution device of asymmetric light field, comprise stepped fixing body, reflex reflector, led light source and corresponding batswing tab lens and circuit board thereof, it is characterized in that: be positioned on each ladder of stepped fixing body on the one side in the same way reflex reflector all is housed, be positioned on each ladder on another another side in the same way circuit board all is housed, each LEDs light source equal word order formula on each ladder of its correspondence is welded on the corresponding circuit board, each LEDs light source all has its corresponding batswing tab lens, each batswing tab lens is packed on the corresponding cascaded surface by corresponding lens pressing plate and with the screw fastening-type respectively, must guarantee fully that the direct projection luminous energy direct irradiation that also sees through batswing tab lens one side that led light source sends is being shone on the target, and the luminous energy that sees through the relative opposite side of batswing tab lens all produces reverberation after the reflection unit reflection, reverberation is radiated in the process of being shone on the target through a relative side, the light intensity of a relative side is increased, so, the irradiates light mutual superposition of plurality of LEDs light source is radiated at is alternately shone on the target, thereby forms asymmetric light field; Each led light source beam angle is identical, power is identical, and led light source is the color combinations more than two kinds in red, green, blue, the white, links together through corresponding circuit.

Beneficial effect:

Outstanding advantage with LED cold light source than energy-conservation 90% with the halogen tungsten lamp light source of equiluminous, can make the stage irradiation temperature drop to 23 ℃ by 50 ℃, and can reach 50000 hours service life; Since the same beam angle of led light source, same power, therefore, simple in structure, easy making, cost is low; Because reverberation that reflection unit produces and the irradiation of direct light mutual superposition, and led light source color difference, therefore, can increase light intensity, make the illumination under the different irradiation distances very even, can produce the gorgeous asymmetric light field that is fit to canopy of the heavens illumination, satisfy the needs of the asymmetric light field illumination of large tracts of land, be particularly useful for the theatrical stage illumination.

Description of drawings

Fig. 1, general structure schematic diagram;

Fig. 2, press the A-A cutaway view shown in Fig. 1;

Fig. 3, press the amplification I figure shown in Fig. 2.

The specific embodiment

Further explanation in detail in conjunction with the accompanying drawings;

Shown in Fig. 1～3, be positioned on each ladder of stepped fixing body 1 on the side 2 in the same way reflex reflector 3 all is housed, be positioned on each ladder on another another side 4 in the same way circuit board 5 all is housed, each LEDs light source 6 equal word order formula on its corresponding each ladder is welded on the corresponding circuit board 5, each LEDs light source 6 all has its corresponding batswing tab lens 7, and each batswing tab lens 7 is packed on the corresponding cascaded surface by corresponding lens pressing plate 8 and with screw 9 fastening-types respectively; Must guarantee fully that the direct light 10 that also sees through batswing tab lens 7 one sides that led light source 6 sends can shone on the target 12 by direct irradiations, and the luminous energy that sees through the relative opposite side of batswing tab lens 7 is all through reflex reflector 3 reflection back generation reverberation 11, reverberation 11 is radiated in the process of being shone on the target 12 through a relative side, the light intensity of a relative side is increased, so, the irradiates light mutual superposition of plurality of LEDs light source 6 is radiated at is alternately shone on the target 12, thereby forms asymmetric light field; The beam angle of each LEDs light source 6 is identical, power is identical, and led light source 6 is the color combinations more than two kinds in red, green, blue, the white, links together through corresponding circuit.

Corresponding circuit connection structure is, the led light source 6 of color of the same race is one group, and the led light source 6 in same group is cascaded mutually, and the led light source 6 between on the same group is together not parallel with one another.

The LED light distribution device of described asymmetric light field is contained in the LED strip-light lamp that promptly constitutes asymmetric light field in the lamp body 13 by stepped fixing body 1 globality.

Operation principle is, utilizes the characteristics of the batswing tab lens 7 of led light source 6, and it is wing that its distribution curve flux is bat, and central light strength is low, both sides light intensity height.Among the present invention, by reflex reflector 3 light of batswing tab lens 7 one sides is all reflected and to produce reverberation 11, reverberation 11 is in a relative side is radiated at process on the target 12, the light intensity of a relative side is increased, so, the irradiates light mutual superposition of plurality of LEDs light source 6 is radiated at is alternately shone on the target 12, makes the illumination under the different irradiation distances very even, satisfies the needs of the asymmetric light field illumination of large tracts of land.

Claims

1. the LED light distribution device of an asymmetric light field, comprise stepped fixing body, reflex reflector, led light source and corresponding batswing tab lens and circuit board thereof, it is characterized in that: be positioned on each ladder of stepped fixing body on the one side in the same way reflex reflector all is housed, be positioned on each ladder on another another side in the same way circuit board all is housed, each LEDs light source equal word order formula on each ladder of its correspondence is welded on the corresponding circuit board, each LEDs light source all has its corresponding batswing tab lens, each batswing tab lens is packed on the corresponding cascaded surface by corresponding lens pressing plate and with the screw fastening-type respectively, must guarantee fully that the direct projection luminous energy direct irradiation that also sees through batswing tab lens one side that led light source sends is being shone on the target, and the luminous energy that sees through the relative opposite side of batswing tab lens all produces reverberation after the reflection unit reflection, reverberation is radiated in the process of being shone on the target through a relative side, the light intensity of a relative side is increased, so, the irradiates light mutual superposition of plurality of LEDs light source is radiated at is alternately shone on the target, thereby forms asymmetric light field; Each led light source beam angle is identical, power is identical, and led light source is the color combinations more than two kinds in red, green, blue, the white, links together through corresponding circuit.

2. the LED light distribution device of a kind of asymmetric light field according to claim 1, it is characterized in that: corresponding circuit connection structure is, the led light source of color of the same race (6) is one group, led light source in same group (6) is cascaded mutually, and the led light source (6) between on the same group is together not parallel with one another.