CN202452376U

CN202452376U - LED lamp and lens thereof

Info

Publication number: CN202452376U
Application number: CN2011204799814U
Authority: CN
Inventors: 黄硕
Original assignee: SHENZHEN DIANMING SCI & TECH Co Ltd
Current assignee: SHENZHEN DIANMING SCI & TECH Co Ltd
Priority date: 2011-11-28
Filing date: 2011-11-28
Publication date: 2012-09-26
Anticipated expiration: 2021-11-28

Abstract

The utility model is suitable for the technical field of illumination, and provides an LED (Light Emitting Diode) lamp and a lens of the LED lamp, wherein, the lens of the LED lamp comprises a lens body 101; an accommodating chamber 103 is arranged at the bottom end of the lens body 101, and is used for accommodating the LED lamp; in addition, a groove 105 is formed at the top end of the lens body 101, and is used for reflecting and refracting rays emitted by the LED lamp, so as to achieve the purpose of expanding the LED radiating angle. By adopting the lens of the LED lamp, the radiating angle and the light-emitting range of the LED lamp can be enlarged conveniently, the light extraction efficiency is also ensured, the LED lamp can be led to satisfy the requirement of wide-angle illumination, the structure is simple, and the cost is low.

Description

The lens of a kind of LED light fixture and LED light fixture

Technical field

The utility model belongs to lighting technical field, relates in particular to the lens of a kind of LED light fixture and LED light fixture.

Background technology

LED is called as the green solid state light emitter of New-generation efficient energy-saving, because plurality of advantages such as its high-efficiency long-life, tunable optical, by being applied in the modern light fixture more and more widely.General LED device lighting angle and illumination zone all have certain restriction; Normally bright dipping in 180 degree; Lighting angle is about 120 degree; This just causes the situation of throwing light at some needs, LED lamp can't reach the wide-angle illuminating effect of traditional light source (like fluorescent lamp or incandescent lamp) on a large scale.In order to solve the problems of the technologies described above, to adopt usually in the prior art towards the inconsistent lamp pearl of arranging and perhaps adopt frosted (or milky white) lampshade to expand LED lamp luminescence angle.For example; The CN20189726 patent has disclosed the luminous LED bulb lamp of a kind of wide-angle; It enlarges the lighting angle of lamp through the different directions lamp pearl of arranging, and the shortcoming of this scheme is the limited problem of lighting angle that can't resolve the light fixture of single LEDs, simultaneously when the plurality of LEDs lamp; Also receive the restriction in light fixture space, can not thoroughly solve the uncontrolled problem of lighting angle.And for example, No. 201020198186.3 Patent publish a kind of frosted lampshade, strengthens LED with it and go out optical range, but this scheme frosted light loss is serious, reduce Luminaire efficiency.

The utility model content

The purpose of the utility model embodiment is to provide a kind of lens of LED light fixture, and it has improved the rising angle and the light extraction efficiency of LED light fixture, and simple in structure, cost is low.

The utility model embodiment realizes like this; A kind of lens of LED light fixture comprise: lens body 101 is provided with cavity volume 103 in the bottom of said lens body 101; Be used to hold the LED lamp; The top of said lens body 101 is provided with a groove 105, is used to reflect and reflect the light that the LED lamp sends, to reach the purpose of expansion LED lighting angle.

Another purpose of the utility model embodiment is to provide a kind of LED light fixture, and said LED light fixture adopts above-mentioned LED light fixture lens.

The utility model embodiment can enlarge LED lamp luminescence angle easily and go out optical range, and guarantee light extraction efficiency through LED light fixture lens are provided, and makes the LED light fixture can satisfy the demand of wide-angle illumination, and it is simple in structure, and cost is low.

Description of drawings

Fig. 1 is the structural representation of the LED light fixture lens that provide of the utility model embodiment

Fig. 2 A-2F is that the LED light fixture lens that the utility model embodiment provides go out the optical range sketch map.

The specific embodiment

For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.

The utility model embodiment is through the lens of LED light fixture; The light that from different directions the LED lamp is sent reflects according to the refraction of light and anti-body law and reflects; Thereby the lighting angle of the expansion LED lamp of maximum magnitude with go out optical range; Make the LED lamp can satisfy the demand of wide-angle illumination, cost is low, and light extraction efficiency is high.

As shown in Figure 1; The utility model embodiment provides a kind of LED light fixture lens, and it comprises lens body 101, is provided with cavity volume 103 in the bottom of said lens body 101; Be used to hold the LED lamp; The top of said lens body 101 is provided with a groove 105, is used to reflect and reflect the light that the LED lamp sends, to reach the purpose of expansion LED lighting angle.

Preferably, said lens body 101 is made by transparent material, and said transparent material can be PC, PMMA, glass etc. so that refraction and total reflections can take place through body 101 in light, with light to around diffusion.

Preferably, said lens body 101 is a cylinder.

Preferably, said cavity volume 103 is cuboid or hemisphere, specifically can design according to the LED shape.

Preferably, said groove 105 is by the first parabola cambered surface 1051, the second parabola cambered surface 1052, first tru(e)ing face 1053, second tru(e)ing face 1054 and cone (not shown).

Preferably; The curvature of the said first parabola cambered surface 1051, the second parabola cambered surface 1052 is different from the curvature of said first tru(e)ing face 1053, second tru(e)ing face 1054; When being the parabola cambered surface of same curvature entirely with the inwall of avoiding groove; Can make certain angle luminous intensity excessive, thereby dazzle and non-uniform light situation occur.Said cone 1055 is used to strengthen the light intensity of parabola cambered surface in 0 angle.

Preferably, said first, second parabola cambered surface is formed by parabola Y=-0.05* (t-10) ^2+9 rotation.

Shown in Fig. 2 A-2F, the different facial of the light scioptics that the LED lamp sends reflects and reflects, and what make the LED lamp goes out optical range near 360 degree; The angle of departure (half-power angle) is near 300 degree; Thereby expanded the lighting angle of LED lamp, and its bright dipping is even, does not have loss.

Another embodiment of the utility model provides a kind of LED light fixture; It comprises above-mentioned LED light fixture lens, LED lamp; Said LED light fixture is fixedly connected on the lens of said LED light fixture through jockey the correspondence position of said LED light fixture; With the rising angle of expansion LED light fixture, make it satisfy the demand of wide-angle illumination.

The lens of the LED light fixture that the utility model embodiment provides, but the expansion LED lamp of maximum magnitude go out optical range, make the LED light fixture can satisfy the wide-angle lighting demand, simple in structure, cost is low, and does not have the light loss of going out, and has guaranteed light extraction efficiency.

The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.

Claims

1. the lens of a LED light fixture is characterized in that, comprising: lens body (101); Be provided with cavity volume (103) in the bottom of said lens body (101); Be used to hold the LED lamp, the top of said lens body (101) is provided with a groove 105, is used to reflect and reflect the light that the LED lamp sends.

2. the lens of LED light fixture as claimed in claim 1 is characterized in that, said lens body (101) is made by transparent material.

3. the lens of LED light fixture as claimed in claim 2 is characterized in that, said transparent material is PC or PMMA or glass.

4. like each described lens of claim 1 to 3, it is characterized in that said lens body (101) is a cylinder.

5. like the said lens of claim 4, it is characterized in that said cavity volume (103) is cuboid or hemisphere.

6. like claim 1-3,5 each described lens, it is characterized in that said groove (105) is made up of the first parabola cambered surface (1051), the second parabola cambered surface (1052), first tru(e)ing face (1053), second tru(e)ing face (1054) and cone.

7. lens as claimed in claim 6 is characterized in that, the curvature of the said first parabola cambered surface (1051), the second parabola cambered surface (1052) is different from the curvature of said first tru(e)ing face (1053), second tru(e)ing face (1054).

8. lens as claimed in claim 7 is characterized in that, the said first parabola cambered surface (1051), the second parabola cambered surface (1052) are formed by parabola Y=-0.05* (t-10) ^2+9 rotation.

9. a LED light fixture is characterized in that, comprises like claim 1-3, and the lens of 5,7,8 each described LED light fixtures, said lens are fixedly connected on the correspondence position of said LED light fixture through jockey.

10. LED light fixture as claimed in claim 9 is characterized in that, comprises LED lens as claimed in claim 4, and said lens are fixedly connected on the correspondence position of said LED light fixture through jockey.