CN2708095Y

CN2708095Y - High efficiency condensing light emitting diode lamp

Info

Publication number: CN2708095Y
Application number: CNU2004200208463U
Authority: CN
Inventors: 葛世潮
Original assignee: 葛世潮
Current assignee: Hangzhou Teliang Technology Co., Ltd.
Priority date: 2004-03-03
Filing date: 2004-03-03
Publication date: 2005-07-06
Anticipated expiration: 2014-03-03

Abstract

A high efficiency condensing light emitting diode lamp of the utility model comprises at least an LED equipped on a radiation device, an electric connection device and a light reflection bowl fixed on the radiation device. The light radiating window of the light reflection bowl is equipped with a light-passing board. The light-passing board is fixed with a central optical reflector facing the center of the LED through a fixing device at the middle. The light reflection bowl focuses and emits light transmitted by the LED toward the lateral face to front. The central optical reflector reflects light emitted by LED toward the front side originally to the light reflection bowl and reflects, focuses and emits to front. In this way, almost all the light emitted by LED is utilized and simultaneously the central optical reflector eliminates the light with high light which can injure eyes of people.

Description

High efficiency optically focused LED light lamp

Technical field

The utility model relates to a kind of high efficiency optically focused LED light lamp, can be used for making the do not share the same light spotlight and the illuminating lamp of output angle, be used for reading lamp, illuminating lamp, traffic lights and the display etc. of mine lamp, stage lighting, aircraft and automobile etc.

Background technology

At present, the spotlight of prior art, three classes are arranged by its optical principle, one class is common LED-type (as the 5mm light emitting diode), and it can be with originally forwards (shown in α among Fig. 1) and to the light optically focused directive dead ahead of offside reflection bowl (shown in β among Fig. 1); The 2nd, flashlight type, it can be with the light optically focused directive dead ahead of script to side (shown in θ among Fig. 2); The 3rd, tapered lens adds the collector lens formula, as the O-type light emitting diode of U.S. Lumileds.

The common LED-type spotlight of the above-mentioned first kind does not utilize the light to side-emitted, and light utilization efficiency is low.The second class flashlight type spotlight does not utilize the light to positive surface launching, and light utilization efficiency is also low.The 3rd class tapered lens adds collector lens formula spotlight, could fine optically focused when its central lens chip only enough big at lens, light emitting diode can be considered spot light, otherwise be imaging, and luminous range is far away more, it is big more to resemble, and contributes more little to converging light; The tapered lens light leak is serious simultaneously, light utilization efficiency is low; Big, the required tapered lens volume of the chip area of large-power light-emitting diodes is big, weight is big, cost is high.

In addition, large-power light-emitting diodes is used one or more large-sized chips always, and the brightness of chip surface is up to 6,000,000 cd/m ²More than, if the human eye direct-view, the short time can make human eye produce shadow that can't see thing, then can injure human eye slightly for a long time.

Summary of the invention

The purpose of this utility model is to overcome the deficiency of above-mentioned existence, and the high-power high-efficiency optically focused LED light lamp that provides a kind of high efficiency optically focused can not injure human eye, can be used for making the do not share the same light spotlight and the illuminating lamp of output angle.

It includes at least one light emitting diode, an arrangements of electric connection, described light emitting diode is installed on the heat abstractor, one is fixed in the reflection bowl on the heat abstractor, on its light outgoing window light-passing board is installed, the fixture of this light-passing board by the centre is fixed with the central optical reflector towards light emitting diode.

Described light emitting diode is that a kind of in the light emitting diode of light emitting diode, large-power light-emitting diodes, the large-power light-emitting diodes that has screw or other form pasted on common pillar light emitting diode, surface.

The light reflection surface of described reflection bowl is parabolic, near parabola, the conical surface or other curved surface.

The reflecting surface of described central optical reflector can be the conical surface or other curved surface.

Described reflection bowl itself can be a radiator, and can have radiator shutter.

Described at least one light emitting diode is snugly fitted on the radiator, heat-conducting glue is arranged between the two, the radiator bottom is connected to driver and shell thereof, and there is an electric connector to be used for linking to each other with external power, described reflection bowl is the part of radiator, the input of driver links to each other with external power with electric connector through lead-in wire, and its output links to each other with at least one light emitting diode through lead-in wire.

Described driver is AC/DC or DC/DC converter,

Described electric connector can be the various sizes of existing lamp and the lamp screw base of structure, socket lamp holder.

Described reflection bowl is assembled directive the place ahead with light emitting diode to the light of side-emitted, and described central optical reflector disperses the light of outgoing to reflect to reflection bowl, reflect then and assemble directive the place ahead to the front light emitting diode originally.Like this, the light that not only nearly all light emitting diode sends all is utilized, simultaneously because of there being the central optical reflector to eliminate the high-luminance light that may injure human eye.

High efficiency optically focused LED light lamp of the present utility model is compared with the large-power light-emitting diodes lamp of prior art, has the light utilization efficiency height, can be designed to the lamp of the angle of emergence of not sharing the same light on demand, and eliminated the advantages such as high-luminance light that may injure human eye.

Description of drawings

Fig. 1 is the optically focused principle schematic of the light emitting diode of prior art.

Fig. 2 is the optically focused principle schematic of the flashlight of prior art.

Fig. 3 is the structural representation of an embodiment of high efficiency optically focused LED light lamp of the present utility model.

Fig. 4 is the structural representation of another embodiment of high efficiency optically focused LED light lamp of the present utility model.

Fig. 5 is the structural representation of another embodiment of high efficiency optically focused LED light lamp of the present utility model.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is described in detail: Fig. 1 is the optically focused principle schematic of the light emitting diode of prior art.Light-emitting diode chip for backlight unit 1 is arranged, the reflection bowl 2 of fixed chip, light transmission medium and collector lens 3, the lead-out wire 5 of the be electrically connected tie lines 4 and the light emitting diode of light-emitting diode chip for backlight unit shown in Fig. 1.As seen from the figure, it can be with light (shown among Fig. 1 7) the optically focused directive dead ahead in light (shown among Fig. 1 6) in the solid angle α of script directive dead ahead and the directive offside reflection bowl solid angle β, light to side-emitted then can't effectively be assembled forwards, shown among Fig. 1 30, thereby light utilization efficiency is low.

Fig. 2 is the flashlight type optically focused principle schematic of prior art.Light source 8 is arranged shown in Fig. 2, parabolic reflector bowl 9, described reverberation bowl can be with the light optically focused directive dead ahead of the light in the solid angle θ of light source script directive side, shown among Fig. 2 10, light in the solid angle δ of directive dead ahead then can't effectively be assembled forwards, shown among Fig. 2 11, thereby light utilization efficiency is low.

Fig. 3 is the structural representation of an embodiment of high efficiency optically focused LED light lamp of the present utility model.At least one light emitting diode 12 is arranged among Fig. 3, it is at least a that described light emitting diode can be common pillar light emitting diode (for example 3,5,9mm light emitting diode), light emitting diode or large-power light-emitting diodes etc. are pasted in the surface, and it is installed on the heat abstractor 13; A reflection bowl 14, its reflecting surface are parabolic, near parabola, the conical surface or other curved surface, can be by the requirement design of light output angle; One to be positioned at light emitting diode positive and towards the central optical reflector 15 and the fixture 16 thereof of light emitting diode, 17 for being fixed on the light-passing board on the light outgoing window, fixture 16 is fixed on central optical reflector 15 on the light-passing board 17, on the described light-passing board 17 optical texture can be arranged, for example a series of lenslets etc.The light of light emitting diode directive side is through reverberation bowl 14 reflecting condensation directive the place aheads, shown among Fig. 3 18; The light in light emitting diode directive front is through central optical reflector 15 reflection optically focused directive the place aheads behind reverberation bowl 14, shown among Fig. 3 19.The reflecting surface 20 of described central optical reflector 15 can be the conical surface or other curved surface, can be by the requirement design of light output angle.Described fixture 16 is at least one pillar.An arrangements of electric connection 22 for example at least one circuit and the tie lines that is electrically connected, is used for light emitting diode and external power are connected, to light light emitting diode.

Fig. 4 is the structural representation of another embodiment of high efficiency optically focused LED light lamp of the present utility model.It is characterized in that described reflection bowl 14a is a radiator, and can have radiator shutter 21, LED light lamp 12a is snugly fitted on the reflection bowl radiator 14a, and heat-conducting glue is arranged between the two.

Fig. 5 is the structural representation of another embodiment of high efficiency optically focused LED light lamp of the present utility model.12a is at least one light emitting diode among the figure, the large-power light-emitting diodes that for example has screw, snugly fitted on the radiator 23, it is driver that heat-conducting

glue

24,25 is arranged between the two, 26 is the shell of driver, 27 is an electric connector, is used for linking to each other with external power, and reflection bowl 14a can be the part of radiator, the input of driver 25 28 links to each other with external power with electric connector 27 through going between, and its output 29 links to each other with at least one light emitting diode 12b through going between.Described driver 25 is AC/DC or DC/DC converter, can be the alternating voltage of input for example 110 to 230V, 50 or the electric main of 60HZ, or a few volt to the direct current of several hectovolts is transformed into the direct current that is suitable for light emitting diode work.Described electric connector 27 can be the various lamp holders of existing lamp, for example lamp screw base of different size and structure, socket lamp holder etc.The shell 26 of described driver interconnects light emitting diode 12b, radiator 23 and electric connector 27 in aggregates, becomes a whole lamp.Identical among Fig. 5 among the meaning of other digital representative and Fig. 4.

Each embodiment that the scope of protection of present invention is not limited to introduce herein, the know-how that relates to is that the general personnel of this specialty are familiar with, and therefore as long as understand content of the present invention, can do various forms of conversion and replacement.

Claims

1, a kind of high efficiency optically focused LED light lamp, it includes at least one light emitting diode, an arrangements of electric connection (22), it is characterized in that described light emitting diode (12,12a) is installed on the heat abstractor (13), one is fixed in reflection bowl on the heat abstractor (14,14a), on its light outgoing window light-passing board (17) is installed, this light-passing board (17) is fixed with central optical reflector (15) towards light emitting diode by middle fixture (16).

2, high efficiency optically focused LED light lamp according to claim 1 is characterized in that described light emitting diode (12,12a) pastes light emitting diode, large-power light-emitting diodes, has a kind of in the light emitting diode of large-power light-emitting diodes of screw for common pillar light emitting diode, surface.

3, high efficiency optically focused LED light lamp according to claim 1 is characterized in that the light reflection surface (20) of described reflection bowl (14) is parabolic, near parabolic, the conical surface.

4, according to claim 1 or 3 described high efficiency optically focused LED light lamps, it is characterized in that the reflecting surface (20) of described central optical reflector (15) can be the conical surface.

5, according to claim 3 or 4 described high efficiency optically focused LED light lamps, it is characterized in that described reflection bowl (14) itself can be a radiator (14a), and can have radiator shutter (21).

6, high efficiency optically focused LED light lamp according to claim 1 and 2, it is characterized in that described at least one light emitting diode (12a) is snugly fitted on the radiator (23), heat-conducting glue (24) is arranged between the two, the radiator bottom is connected to driver (25) and shell (26) thereof, and there is an electric connector (27) to be used for linking to each other with external power, described reflection bowl (14a) is the part of radiator, the input of driver (25) links to each other with external power with electric connector (27) through lead-in wire (28), and its output links to each other with at least one light emitting diode (12b) through lead-in wire (29).

7, high efficiency optically focused LED light lamp according to claim 6 is characterized in that described driver (25) is AC/DC or DC/DC converter.

8, high efficiency optically focused LED light lamp according to claim 6 is characterized in that described electric connector (27) is lamp screw base or socket lamp holder.