CN2823777Y

CN2823777Y - Light source projecting structure with diffusion plate for LED mine lamp

Info

Publication number: CN2823777Y
Application number: CNU2005201191892U
Authority: CN
Inventors: 杨呈尉; 钟怀谷; 洪建成; 杜顺利
Original assignee: Opto Tech Corp
Current assignee: Opto Tech Corp
Priority date: 2005-09-21
Filing date: 2005-09-21
Publication date: 2006-10-04
Anticipated expiration: 2015-09-21

Abstract

The utility model relates to a light source projecting structure with diffusion pieces for an LED miner's lamp. The utility model comprises an LED light source, a diffusion piece, a lens body and a reflecting surface body, wherein the LED light source a high-power light-emitting diode; the diffusion piece is arranged on the path of light rays ejected by the LED light source, and light beams which penetrate through the diffusion piece can be uniformly mixed; the lens body can make the light beams which penetrate through the diffusion piece aggregated. Beside, the reflecting surface body is basically in an external expansion shape, the material of the inner wall of the reflecting surface body can reflect the light beams which are uniformly mixed by the diffusion piece, the bottom of the inner hem of the diffusion piece is the place where the LED light source is arranged, and the other of the reflecting surface body is the place where the lens body is arranged; the lens body can make the penetrated light beams aggregated.

Description

The light source projects structure with diffusion sheet of miner's lamp prepared from LED

Technical field

The utility model relates to a kind of miner's lamp prepared from LED, refers to a kind of light source projects structure with diffusion sheet of miner's lamp prepared from LED especially.

Background technology

Mine lamp is coal miner one of instrument very easily when excavating in the pit.Because traditional light source is to adopt bulb, be easy to generate spark when life-span weak point, fault, add the lead-acid battery that is used, blast easily, therefore the someone adopts a plurality of light emitting diodes of low-power cold light as light source in recent years, but this type of lamp brightness deficiency, focusing effect are not good, so just the someone tries to adopt the light source of the light emitting diode of high power, high brightness as mine lamp.

See also Fig. 1, Fig. 1 is a kind of schematic diagram that adopts the mine lamp of High Power LED.As shown in Figure 1, mine lamp 1 mainly is made up of cooling stand 12, LED lamp source 14, reflecting surface body 16, lenticular body 18.Wherein the lamp socket 16a of reflecting surface body 16 is used for fixing cooling stand 12, LED lamp source 14 etc., and lens mount 16b is used for fixing lenticular body 18.12 of cooling stands can promote heat radiation such as LED lamp source 14 heaters such as grade.When LED lamp source 14 was lighted, the beam portion branch that it produced directly saw through lenticular body 18 and penetrates, and part is then still penetrated by lenticular body 18 after the reflection of reflecting surface body 16.But, can assemble to be incident upon on certain fixed position for the light beam that is projected as far as possible, the comparison elongated that the reflecting surface body 16 of mine lamp 1 can design according to actual demand, and then increase the effect of its optically focused.

See also Fig. 2 A, Fig. 2 A is the schematic diagram of another kind of mine lamp.Shown in Fig. 2 A, another kind of mine lamp 2 has comprised LED lamp source 24, reflecting surface body 26, lenticular body 28 at least.Compare with the mine lamp 1 of Fig. 1, though the lamp source of mine lamp 2 is provided by LED lamp source 24, but the direction of its ray cast is all around (left and right directions among the figure), and utilize the reflecting surface body 26 of special shape, also can make light source projects in the precalculated position, also can make the volume-diminished of mine lamp 2 be flat simultaneously.Yet, known mine lamp 1,2 is because the characteristic of LED lamp source 14,24 itself, though be projeced into anterior position through reflect focalization, but still can make its light beam that irradiates produce photochromic uneven phenomenon (the photochromic distribution map shown in Fig. 2 B, wherein x represents the position, and y represents colour temperature).If mine lamp 1,2 light beams that projected are photochromic when inhomogeneous, the miner after long-time the use, visually exerts an adverse impact easily.

The utility model content

Main purpose of the present utility model is providing a kind of miner's lamp prepared from LED with diffusion sheet structure, relies on the ability of the even mixed light beam that diffusion sheet provided, and provides high even bright dipping photochromic.

Based on above-mentioned purpose, the utility model is a kind of light source projects structure with diffusion sheet of miner's lamp prepared from LED, and it comprises: a LED source is high-power light emitting diode; One diffusion sheet is arranged on the ejaculation opticpath of this LED source, and the light beam that penetrates this diffusion sheet can evenly be mixed; One lenticular body can make the light beam that penetrates be assembled; An and reflecting surface body, this reflecting surface body roughly is and extends out shape, and the material on its inwall has the effect of reflection through mixed uniformly this light beam of this diffusion sheet, and the inner edge bottom is the part that is provided with of this LED source, and the other end of reflecting surface body is the part that is provided with of this lenticular body.The lens physical efficiency is assembled the light beam that penetrates.

In other words, this mine lamp comprises LED source, diffusion sheet, reflecting surface body and lenticular body.Diffusion sheet system is evenly mixed in order to the light beam that will penetrate diffusion sheet.The reflecting surface body can reflect through the mixed uniformly light beam of diffusion sheet, and its inner rim bottom is the part that is provided with of this LED source, and the other end of reflecting surface body is the part that is provided with of a lenticular body.The lens physical efficiency is assembled the light beam that penetrates.Can be further understood by following detailed description and accompanying drawing about characteristics of the present utility model and spirit.

Description of drawings

Fig. 1 is the schematic diagram of known mine lamp.

Fig. 2 A is the schematic diagram of known another mine lamp.

Fig. 2 B is the photochromic distribution map of known mine lamp.

Fig. 3 A is a schematic diagram of the present utility model.

Fig. 3 B is the schematic diagram of another embodiment of the utility model.

Fig. 3 C is the photochromic distribution map of mine lamp of the present utility model.

Description of reference numerals

1,2,3 mine lamps, 12 cooling stand plates

14,24 LED lamp sources, 16,26 reflecting surface bodies

16b, 36b lens mount 18,28 lenticular bodies

30 diffusion sheets, 31 cooling stands

32 movable parts, 34 LED sources

35,16a lamp socket 351 movable parts

36 reflecting surface bodies, 38 lenticular bodies

The specific embodiment

See also Fig. 3 A, be the schematic diagram of the light source projects structure with diffusion sheet of the utility model miner's lamp prepared from LED.As shown in Figure 3A, mine lamp 3 of the present utility model includes a cooling stand 31, LED source 34, reflecting surface body 36, lenticular body 38 or the like.Wherein reflecting surface body 36 center inner edges are that LED source 34 is provided with part, this LED source 34 is the light emitting diode of high power, high brightness, and this lenticular body 38 is to be arranged at reflecting surface body 36 other ends, be on reflector 36, to be provided with a lens mount 36b in addition in the present embodiment for fixing, can also alternate manner fixed lens body 38, not as limit.

The utility model improvements are to set up a diffusion sheet 30 in LED source 34 the place aheads, because LED source 34 can produce the light beam of different-colour, if not this light beam through the diffusion sheet 30 on the opticpath that is arranged at LED source 34 ejaculations, will have uneven phenomenon as known mine lamp 1,2 easily.But because the diffusion sheet 30 that had of the utility model mine lamp 3 can make the light beam of the different-colour that penetrates diffusion sheet 30 evenly be mixed (the photochromic distribution map shown in Fig. 3 C, wherein x represents the position, y represents colour temperature).

Thus, after the light beam of LED source 34 evenly mixes through diffusion sheet 30, except directly seeing through lenticular body 38 ejaculations, because the effect that the material on the inwall of reflecting surface body 36 has folded light beam, this light beam are still penetrated through lenticular body 38 after also can roughly being reflecting surface body 36 reflections that extend out shape.Owing to be fixed on the characteristic of the lenticular body 38 on the lens mount 36b itself, the light beam that the utility model mine lamp 3 is throwed away, (the photochromic distribution map shown in Fig. 3 C except evenly, wherein abscissa x represents the position, and ordinate y represents colour temperature) light beam is projected on certain fixing point by gathering.

Shown in Fig. 3 B, in the utility model mine lamp 3 fixedly the lamp socket 35 of LED source 34 further comprise movable part 351.Because movable part 351 is to be connected to diffusion sheet 30, and has the movable device of liftable diffusion sheet 30, so rely on movable part 351, the utility model mine lamp 3 just can rely on the position that changes diffusion sheet 30, and then adjusts the light beam of different rising angles.Thus, the utility model mine lamp 3 also can adjust the light beam of various angles except high light beam uniformly can be provided.

In addition, except set-up mode as the diffusion sheet 30 of Fig. 3 A～3B, be arranged at the diffusion sheet 30 on the opticpath that LED source 34 penetrates, can adopt contact or noncontact light emitting diode crystal to LED source 34 or LED source 34.

By the above detailed description of preferred embodiments, be to wish to know more to describe feature of the present utility model and spirit, and be not that the above preferred embodiment that discloses comes category of the present utility model is limited.On the contrary, purpose is to wish to contain various changes and have in the category of the claim that is arranged in the desire application of the utility model institute of equality.

Claims

1, a kind of light source projects structure with diffusion sheet of miner's lamp prepared from LED is characterized in that comprising:

One LED source is high-power light emitting diode;

One diffusion sheet is arranged on the ejaculation opticpath of this LED source, and the light beam that penetrates this diffusion sheet can evenly be mixed;

One lenticular body can make the light beam that penetrates be assembled; And

One reflecting surface body, this reflecting surface body roughly is and extends out shape, and the material on its inwall can reflect through mixed uniformly this light beam of this diffusion sheet, and the inner edge bottom is the part that is provided with of this LED source, and the other end of reflecting surface body is the part that is provided with of this lenticular body.

2, the light source projects structure with diffusion sheet of miner's lamp prepared from LED according to claim 1 is characterized in that being arranged at this diffusion sheet on the ejaculation opticpath of this LED source, can contact or noncontact to this LED source.

3, the light source projects structure with diffusion sheet of miner's lamp prepared from LED according to claim 1, it is characterized in that being arranged at this diffusion sheet on the ejaculation opticpath of this LED source, can contact or noncontact to the light emitting diode crystal of this LED source.

4, the light source projects structure with diffusion sheet of miner's lamp prepared from LED according to claim 1, it is characterized in that a lamp socket is arranged in the described mine lamp, this lamp socket comprises: a movable part, this movable part is connected to this diffusion sheet, and has the movable device of this diffusion sheet of liftable.