CN203395644U

CN203395644U - Luminaire capable of weakening glare

Info

Publication number: CN203395644U
Application number: CN201320246681.0U
Authority: CN
Inventors: 刘栋宇; 樊成开
Original assignee: Meigedun (jiangmen) Electronic Lighting Co ltd
Current assignee: Meigedun (jiangmen) Electronic Lighting Co ltd
Priority date: 2013-05-08
Filing date: 2013-05-08
Publication date: 2014-01-15
Anticipated expiration: 2023-05-08

Abstract

The utility model provides a luminaire capable of weakening glare. The luminaire comprises multiple light sources and a secondary refracting reflective cover. Light emitted by light sources is refracted by the secondary refracting reflective cover and then reflected outwards for illumination. The secondary refracting reflective cover is formed by splicing of a plurality of plane mirrors in an inclined mode. According to the luminaire, the light emitted by light sources can be refracted at various angles so that the brightness of light sources is prevented from being concentrated at one position and the glare is reduced.

Description

A kind of light fixture that can weaken dazzle

Technical field

The utility model relates to a kind of light fixture that can weaken dazzle, relates in particular to high-power LED lamp lighting field.

Background technology

Dazzle refers in the visual field sensation due to the uncomfortable or temporary transient DE causing much larger than the adaptable illumination of eyes.

The principal element that produces dazzle is: the brightness of (1) light source, and brightness is higher, and dazzle is more remarkable; (2) position of light source, more approaches sight line, and dazzle is more remarkable; (3) apparent size of light source and quantity, apparent area is larger, and number of light sources is more, and dazzle is more remarkable; (4) environment around, ambient brightness is darker, and eyes adaptation brightness is lower, and dazzle is also just more remarkable.

LED lamp because power consumption is low, energy-conserving and environment-protective, long service life, be applied to more and more widely among daily life, but the brightness of LED lamp is high, and high-power LED lamp is often the polymerization of a large amount of LED lamp pearls, like this, the problem that more needs to overcome dazzle among using so that high-power LED lamp is applicable to some to avoiding the high occasion of dazzle requirement, such as the illumination of large-scale stadium, the illumination on road surface etc.

Utility model content

In view of this, for the problems referred to above, the utility model provides a kind of light fixture that can weaken dazzle.

The utility model provides a kind of light fixture that can weaken dazzle, comprise a plurality of light sources and birefringence reflection shield, the light that described light source sends is launched to throw light on by the refraction of birefringence reflection shield, and described birefringence reflection shield is spliced by slant setting by a plurality of level crossings.

As preferred embodiment, the angle of inclination of described level crossing sequentially changes.

As preferred embodiment, described illumination direction is for shining on the ground, and described birefringence reflection shield integral body is curved, and according to apart from light source from far near, the normal of described level crossing and the angle of horizontal plane are from large to small.

As preferred embodiment, the quantity of described level crossing is at least more than 15.

As preferred embodiment, according to apart from light source from far near, described level crossing is shortened by long in the projected length of horizontal plane.

As preferred embodiment, the described light fixture that can weaken dazzle comprises substrate, heat pipe and radiator, and described light source is installed on substrate, and described heat pipe connects radiator and substrate.

As preferred embodiment, in described heat pipe, there is heat-conducting medium.

As preferred embodiment, described radiator has the fin that the manufacture of Thin Stainless Steel sheet forms, and described radiator has upper kuppe and lower kuppe, and fin is between upper kuppe and lower kuppe.

The light fixture that can weaken dazzle of the present utility model, by the light of light source being carried out to birefringence or refraction more than secondary is launched, because birefringence reflection shield has comprised a plurality of level crossings that are obliquely installed, thereby, the light that light source can be launched goes out from a plurality of angle refractions, avoid the brightness of light source too to concentrate a place, like this, weakened the generation of dazzle.

Accompanying drawing explanation

Fig. 1 is the schematic diagram that can weaken the light fixture of dazzle of the present utility model.

Fig. 2 is the partial schematic diagram of the birefringence reflection shield shown in Fig. 1.

Fig. 3 is the schematic diagram of the assembly of the light source shown in Fig. 1, substrate, heat pipe, heat pipe and radiator.

Drawing reference numeral explanation

Shell 1 birefringence reflection shield 2

The 3rd level crossing 23 of 21 second level crossings 22 of first level crossing

The 4th level crossing 24 first included angle A the second included angle B

The 3rd angle C the 4th angle D

Light source 3 substrate 4 radiators 5

52 times kuppes 53 of main body 51 heat pipe

Light penetrating object 6 baffle plate 7 heat pipes 8

The specific embodiment

Below in conjunction with accompanying drawing, the light fixture that can weaken dazzle of the present utility model is elaborated.

Please refer to shown in Fig. 1, the light fixture that can weaken dazzle of the present utility model, mainly comprise a dome shell 1, integral body presents birefringence reflection shield 2, light source 3, substrate 4, radiator 5 and the light penetrating object 6 of arcuation, the light that described light source 3 sends for numerous LED lamp pearls, described light source 1 and substrate 4 are combined into illuminating module, described birefringence reflection shield 2 is fixed in the inside of described shell 1, described light penetrating object 6 is positioned at the below of described shell 1, described birefringence reflection shield 2, described illuminating module by described shell 1 and described light penetrating object 6 around forming among space.Illumination direction shines on the ground, and described illuminating module is vertically positioned at a side.

Please refer to Fig. 1 and 2 and illustrate, birefringence reflection shield 2 integral body present arc, and the recessed center to shell is comprised of the splicing of polylith level crossing.Please refer to shown in Fig. 2, from the direction to close light source away from light source, and from passing through the section of the axis of described shell, be sequentially defined as 22, the three level crossings 23 of 21, the second level crossings of first level crossing, the 4th level crossing 24......; The normal of first level crossing 21 and the angle of horizontal plane are the first included angle A, the normal of second level crossing 22 and the angle of horizontal plane are the second included angle B, the 3rd normal of level crossing 23 and the angle of horizontal plane are the 3rd angle C, and the 4th normal of level crossing 24 and the angle of horizontal plane are the 4th angle D......

From angle, sort from large to small, be sequentially the first included angle A, the second included angle B, the 3rd angle C, the 4th angle D...... and on the vertical section through the axis of shell, described first level crossing 21 in the horizontal direction projected length L1 is greater than the projected length L2 of described second level crossing, the projected length L2 of described second level crossing 22 is greater than the projected length L3 of described the 3rd level crossing 23, the projected length L2 of described second level crossing 22 is greater than the projected length L3 of described the 3rd level crossing 23, the projected length L3 of described the 3rd level crossing 23 is greater than the projected length L4...... of described the 4th level crossing 24

Like this, when the illumination of light source reflection is incident in birefringence reflection shield 2, because the angle of inclination of level crossing sequentially changes, the level crossing (i.e. first level crossing 21) at edge reflects away incident light as much as possible to side is other, relatively near the level crossing (such as the 4th level crossing) of axis, by incident light, the direction in the axis near shell penetrates.Like this, the light of light source does not have direct irradiation ground, but is gone out with a plurality of angle reflections by birefringence reflection shield, reduced be positioned at shell 1 under the maximal density of luminous flux.

Should be understood that, Fig. 2 is that several level crossings have been shown in part, among practice, when the quantity of level crossing is more than 15, like this, can make the light of light source to reflect more equably, then shine out by light penetrating object 6.Light penetrating object 6 can be transparent glass, or the transparency made of polyester material, for dustproof and make light fixture good looking appearance.

Should be understood that, when illuminating module is vertically placed, can under illuminating module, set up baffle plate 7, to weaken personnel among the illumination glare effect while looking up.Among other embodiment, illuminating module also can be inclined upwardly a little, like this, and just without baffle plate has been set.

Please refer to shown in Fig. 3, described LED lamp pearl is installed on substrate, and substrate 4 is assembled on radiator 5, and is connected with heat pipe 8 between substrate 4 and radiator 5, in heat pipe 8, has heat-conducting medium.Described radiator 5 comprises the main body 51 that the slim fin of stainless steel is laminated, and many heat pipe 52 connects fin, heat pipe comprises U-shaped part (not shown), and U-shaped part one side of heat pipe is embedded in substrate 4 (not shown) on the groove of radiator.Radiator upper surface and lower surface be respectively provided with kuppe, be respectively kuppe (not shown) and lower kuppe 53.

When light source is in running order, the heat producing is by heat pipe 8, and heat pipe 8 is heated, inner heat-conducting medium gasification, and heat is derived with gas, and all the other heats conduct to fin, the radiator then distribute heat that constantly absorbs heat.Upper kuppe and lower kuppe 53 ambient airs are also affected, and between upper kuppe and lower kuppe 53, form passage, and the air of below is entered by lower kuppe 53, then by the thermal environment of fin, hot gas rises, and at upper kuppe, discharges, form the cigarette effect of cooking a meal, be conducive to heat radiation.And heat is larger, air velocity is faster, reaches the effect of forced convertion.

The above embodiment has only expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.

Claims

1. the light fixture that can weaken dazzle, comprise a plurality of light sources and birefringence reflection shield, the light that described light source sends is launched to throw light on by the refraction of birefringence reflection shield, and described birefringence reflection shield is spliced by slant setting by a plurality of level crossings.

2. the light fixture that can weaken dazzle according to claim 1, is characterized in that: the angle of inclination of described level crossing sequentially changes.

3. according to the described light fixture that can weaken dazzle of claim 2, it is characterized in that: described illumination direction is for shining on the ground, described birefringence reflection shield integral body is curved, and from apart from light source from far near, the normal of described level crossing and the angle of horizontal plane are from large to small.

4. according to the described light fixture that can weaken dazzle of claim 1 or 2, it is characterized in that: the quantity of described level crossing is at least more than 15.

5. according to the described light fixture that can weaken dazzle of claim 1 or 3, it is characterized in that: from apart from light source from far near, described level crossing is shortened by long in the projected length of horizontal plane.

6. the light fixture that can weaken dazzle according to claim 1, is characterized in that, comprises substrate, heat pipe and radiator, and described light source is installed on substrate, and described heat pipe connects radiator and substrate.

7. the light fixture that can weaken dazzle according to claim 6, is characterized in that, in described heat pipe, has heat-conducting medium.

8. the light fixture that can weaken dazzle according to claim 6, is characterized in that, described radiator has the fin that the manufacture of Thin Stainless Steel sheet forms, and described radiator has upper kuppe and lower kuppe, and fin is between upper kuppe and lower kuppe.