CN2572502Y

CN2572502Y - Light permeable shade for LED signal mark device

Info

Publication number: CN2572502Y
Application number: CN 02266884
Authority: CN
Inventors: 柴庆衢
Original assignee: SHANGHAI SANCHENG ECONOMIC DEV CO Ltd
Current assignee: SHANGHAI SANCHENG ECONOMIC DEV CO Ltd
Priority date: 2002-09-05
Filing date: 2002-09-05
Publication date: 2003-09-10
Anticipated expiration: 2012-09-05

Abstract

The utility model relates to a light permeable shade for an LED signal mark device, which mainly comprises an outer-layer light permeable shade and an inner-layer light permeable shade. The A and the B surfaces of the inner-layer light permeable shade are respectively provided with different optical structures. The A surface is a surface with a plurality of lenses, or a surface is formed by mutually connecting a plurality of lenses and prism bars, and the B surface is a surface composed of a plurality of prisms or corn grain-shaped prisms. The outer-layer light permeable shade is a plane lens structure. The light permeable shade for an LED signal mark device has the advantage that light sources emitted by LEDs are fully collected to realize the maximum brightness of the light sources; by arranging the optical structure of the B surface of the inner-layer light permeable shade, the inner-layer light permeable shade and the outer-layer light permeable shade complete to newly and reasonably arrange the collecting light sources together according to needs. Thus, light rays are soft and uniform.

Description

The diffuser of light emitting diode marker device

Technical field:

The utility model relates to a kind of diffuser structure of light emitting diode marker device, particularly light emitting diode marker device.

Background technology:

Light emitting diode (claiming LED again) has many advantages such as energy consumption is low, light intensity is high, chromaticity is good as illuminating source, is used for road traffic signal, railway and shipping marker etc. by people more and more.Existing light emitting diode marker device generally is equipped with inside and outside two face mask gathering light source, but because the design of the light distribution structure of face shield is perfect inadequately, and it is not enough to tend in the use that light directive property takes place, or light is soft inadequately a dazzling sensation.The utility model is exactly the shortcoming at prior art, improves the design of diffuser, and a kind of diffuser structure of novel light emitting diode marker device is provided.

Summary of the invention:

Formation of the present utility model mainly comprises outer diffuser and internal layer diffuser, it is characterized in that: the A of described internal layer diffuser, B two sides dispose different optical textures respectively, the A face is that a plurality of lens are arranged or is the face that a plurality of lens and prism bar are connected to each other formation, the B face is the face that the granular prism of bar prism or corn constitutes, and described outer diffuser is the planar lens structure.The utility model has the advantages that: the light source that light emitting diode sends is collected the high-high brightness that realizes light source fully, through the configuration of the optical texture of internal layer diffuser B face itself and the mutual associating of outer diffuser are finished jointly to gathering light source reasonable disposition again as required, to meet the requirement of user, make light soft, even to visible angle.

Description of drawings:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the front view of the utility model internal layer diffuser;

Fig. 3 is the cut-open view of the utility model internal layer diffuser;

Fig. 4 is the structural representation of the utility model internal layer diffuser a plurality of lens of A face and prism bar combination;

Fig. 5 is the structure cut-open view of a plurality of lens of the utility model internal layer diffuser and prism bar combination.

1 is that outer diffuser, 2 is that internal layer diffuser, 3 is that light emitting diode, 4 is that packoff, 5 is a printed-wiring board (PWB) for protecting outer cover, 6 among the figure.

Embodiment:

Further specify embodiment of the present utility model below in conjunction with accompanying drawing:

The diffuser of light emitting diode marker device of the present utility model is formed (referring to Fig. 1) by outer diffuser 1 and internal layer diffuser 2, internal layer diffuser 2 is located in the outer diffuser 1, its A face 21 disposes different optical textures respectively with B face 22 two sides, A face 21 is for having a plurality of lens or being connected to each other the face of formation (referring to Fig. 2 for a plurality of lens and prism bar, 3,4,5,), A face 21 is towards the light emitting diode 3 that is loaded on the printed-wiring board (PWB) 6, B face 22 is the face that the granular prism of bar prism or corn constitutes, this prism is horizontal stripe prism or vertical bar prism or slanted bar prism or cylinder bar prism, and this B face 22 is towards outer diffuser 1; Outer diffuser 1 is the planar lens structure, this planar lens is bar prism or cylinder bar prism or corn shape prism or the plane that does not add prism, the structural arrangements of the planar lens of this skin diffuser 1 and internal layer diffuser B face 22 prisms is to unite configuration each other, as, but be not limited to, B face 22 prisms of internal layer diffuser 2 are the horizontal stripe prism that light is disposed downwards, the vertical bar cylinder-prism of the planar lens of then outer diffuser 1 for light is disposed to the left and right.For example make the traffic signals sign, adopting at the B of internal layer diffuser 2 face 22 can be with the light horizontal stripe prism of configuration downwards, and adopts the prism of the vertical bar shape column structure that disposes about can be with light at outer diffuser.Ectonexine diffuser 1,2 covers and the light emitting diode matrix that is contained on the printed-wiring board (PWB) 6 are packaged as a whole diffuser and protection outer cover 5 through packoff 4.

Claims

1, a kind of diffuser of light emitting diode marker device, mainly comprise outer diffuser and internal layer diffuser, it is characterized in that: the A of described internal layer diffuser, B two sides dispose different optical textures respectively, the A face is that a plurality of lens are arranged or is the face that a plurality of lens and prism bar are connected to each other formation, the B face is the face that the granular prism of bar prism or corn constitutes, and described outer diffuser is the planar lens structure.

2, according to the diffuser of the described light emitting diode marker of claim 1 device, it is characterized in that: the B noodles prism of described internal layer diffuser is horizontal stripe prism or vertical bar prism or slanted bar prism or cylinder bar prism.

3, according to the diffuser of the described light emitting diode marker of claim 1 device, it is characterized in that: the planar lens of described outer diffuser is bar prism or cylinder bar prism or corn shape prism or the plane that does not add prism.

4, according to the diffuser of the described light emitting diode marker of claim 1 device, it is characterized in that: the structural arrangements of the planar lens of described outer diffuser and internal layer diffuser B face prism is to unite configuration each other, as, but be not limited to, internal layer diffuser B face prism is the horizontal stripe prism that light is disposed downwards, then the vertical bar cylinder-prism of the planar lens of outer diffuser for light is disposed to the left and right.