CN201233451Y

CN201233451Y - Light conduction pole

Info

Publication number: CN201233451Y
Application number: CNU2008201095259U
Authority: CN
Inventors: 连闽捷
Original assignee: Beijing Star Net Ruijie Networks Co Ltd
Current assignee: Beijing Star Net Ruijie Networks Co Ltd
Priority date: 2008-07-30
Filing date: 2008-07-30
Publication date: 2009-05-06
Anticipated expiration: 2018-07-30

Abstract

The utility model discloses a light guide pillar, a surface treatment layer is increased at the outer surface of the light guide pillar to reduce or avoid the phenomenon of crosstalk or mixed light in the light guide pillar caused by that the internal or the external light of the light guide pillar penetrates the light guide pillar, thereby improving the light guidance of the light guide pillar and improving the clearness and the reliability of light transmission.

Description

A kind of leaded light post

Technical field

The utility model relates to the Computers and Communication technical field, relates in particular to a kind of leaded light post.

Background technology

Leaded light post (pipe) is a kind of LED (Light Emitting Diode, light emitting diode) light that sends of light source is from PCB (Printed Circuit Board, printed circuit board (PCB)) goes up the structural member of guiding front panel or default luminous position, this structural member generally adopts PC (Polycarbonate, polycarbonate), claim the PC engineering plastics to make again, perhaps adopt PMMA (Polymethyl Methacrylate, organic glass) material to make.

Light conductivity (rate) is the important indicator that is used for weighing leaded light post quality, and the existing technology of industry all has no idea light-conductive rate is brought up to the limit, can only increase light-conductive rate by various technology.The working condition of usually using the leaded light post to come display device when operation each several part in the prior network device in a large number can adopt the LED of different colours, and LED bright, go out, state such as sudden strain of a muscle realizes.But because following several respects, cause adjacent leaded light intercolumniation optical crosstalk or mixed light phenomenon can occur: 1, light is not only along rectilinear propagation in cylinder, has the composition of outwards dispersing in transmission course; 2, the part along rectilinear propagation can cause serious transmission around the corner; 3, be from coarse to fine along transmission path leaded light post, aggravated the generation of transmission; 4, when can't preventing the outside transmission of interior lights, also can't avoid extraneous light to incide cylinder.

Shown in Fig. 1 (a)～Fig. 1 (b), optical crosstalk is meant by the light that transmits in the leaded light post B and seals among the leaded light post A, with the leaded light post A of light light do not take place originally and make, shown in Fig. 1 (a).Mixed light is meant that the light between leaded light post A and the B seals in mutually, and causes the color of original light that corresponding the variation taken place, as 1 (b).These problems all may have influence on the good demonstration of equipment working state.

Industry often adopts the way of structure optimization to solve the problem of optical crosstalk mixed light.Structure optimization be meant the problem phenomenon according to reality change the shape of leaded light post or add resistance (every) the light thing plays certain light action that covers.But this class improve one's methods a shortcoming be exactly through the redesign the leaded light post do not have versatility and popularity, this will cause the increase of production cost.Moreover, use resistance (every) the light thing can only cover an irradiate light on the direction, if the external world has the many places light source to exist, just need to improve resistance (every) quantity of light thing.Obviously this scheme is worthless in this case.Last some resistance (every) the light thing also will consider to install and the collocation problem, this is very inconvenient with regard to production.

The utility model content

The utility model embodiment provides a kind of leaded light post, the problem of optical crosstalk and mixed light occurs in order to leaded light post in the solution prior art.

A kind of leaded light post comprises surface-treated layer;

Described surface-treated layer is arranged at the side external surface of described leaded light post.

The utility model embodiment increases surface-treated layer by the side external surface to the leaded light post, in order to reduce or to avoid leaded light post inside or light from outside to penetrate the leaded light post and the phenomenon of optical crosstalk between the leaded light post or mixed light takes place, thereby improve the light conductivity of leaded light post, improve the sharpness and the fiduciary level of light conduction.

Description of drawings

Fig. 1 (a)～Fig. 1 (b) is optical crosstalk and a mixed light synoptic diagram between the leaded light post in the prior art;

Fig. 2 is the main implementation structure synoptic diagram of the utility model embodiment;

Fig. 3 is a diffuse reflection surface processing layer structural representation among the utility model embodiment;

Fig. 4 is a specular reflection surface processing layer structural representation among the utility model embodiment.

Embodiment

Subject matter in using at these two leaded light posts of optical crosstalk and mixed light, the utility model are mainly based on the consideration of following two aspects: the one, the leaded light post is protected itself, and avoid extraneous light to inject and impact; The 2nd, prevent the outside transmission of self inner generation light, the leaded light post that closes on is exerted an influence.To this, the utility model utilizes the different qualities of two kinds of reflection type of light to solve.Characteristics of the present utility model are not change the structure of conductor string but method by the outside surface special processing solves optical crosstalk and mixed light problem.

Be explained in detail to the main realization principle of the utility model embodiment technical scheme, embodiment and to the beneficial effect that should be able to reach below in conjunction with each accompanying drawing.

As shown in Figure 2, be the structural representation of the utility model embodiment, wherein, the side external surface of leaded light post 1 is provided with surface-treated layer 2, and the light that is used to intercept leaded light post inside penetrates outward or light from outside enters leaded light post inside.

The leaded light post is inner crosstalks with light from outside owing to effectively intercepted, thereby just can avoid occurring the phenomenon of optical crosstalk and mixed light, thereby improves the quality of leaded light post conducting light.

Surface-treated layer can obtain in several ways, and the leaded light post is inner crosstalks with light from outside as long as can effectively intercept.Among the utility model embodiment, can obtain surface-treated layer by dual mode.

Mode one: utilize the diffuse reflection principle to weaken or incident and the outer of internal light of eliminating extraneous light penetrated, as shown in Figure 3.

Irreflexive principle is: when a branch of parallel incident ray be mapped to coarse when surperficial, because of uneven on the surface, so,, cause reflection ray irregularly to reflect to different directions because the normal direction of each point is inconsistent though incident ray is parallel to each other.Can reduce the ratio of light penetration rough surface thus greatly.

Therefore, the part of leaded light post side external surface is carried out frosted handle, allow coarse that original smooth surface becomes, thereby obtain the frosted processing layer.When light shines the outside surface of handling through frosted of leaded light post like this, a large amount of diffuse reflections will take place, the light of incident from the side reflected and dispersed and held owing to diffuse reflection has taken place originally.Because outside incident light major part has all been diffuse-reflected, so just tangible optical crosstalk and mixed light phenomenon can have not been produced yet.

Frosted processing layer described here can obtain by the side external surface frosted with the leaded light post, and is coarse when making light incident frosted processing layer thereby its principle is the side external surface of leaded light post to be become, and produces a large amount of diffuse reflections.The frosted degree or perhaps the degree of roughness of frosted processing layer are adjusted according to actual needs, as long as thereby can satisfy and incident ray is produced a large amount of diffuse reflections avoid or reduce optical crosstalk and mixed light between the leaded light post.

In fact, handle and obtain the frosted processing layer, can also be coated with at the side external surface of leaded light post, obtain every the light coating can produce irreflexive coating except the side external surface to the leaded light post carries out frosted.Should be the same with the frosted processing layer every the light coating, all can produce diffuse reflection, thereby thereby a large amount of diffuse reflection of incident ray generation be avoided or reduced optical crosstalk and mixed light between the leaded light post irradiation light thereon.

Can obtain every optical coating by side external surface coating every the light coating at the leaded light post.Can have a variety ofly every the light coating, have high diffuse reflection all right to light as long as can guarantee.

The advantage of this scheme is: 1, the major part with extraneous incident ray and inner emanating light line reflects or has dispersed out, prevents that it from exerting an influence to the light in the cylinder; 2, this scheme implements than being easier to, and only needs the mould roughened is got final product, and cost is cheap relatively.

Mode two: utilization be the light that the principle of direct reflection reflects the outside in the leaded light post cylinder simultaneously, play the effect that intercepts two sidelights, as shown in Figure 4.

The principle of direct reflection is: light has the reflection of definite direction, the normal angle (reflection angle) of its catoptrical direction and the plane of reflection, equate with the angle (incident angle) of this plane of reflection normal with the incident wave direction, and incident light, reflected light, and plane normal is in together in the plane.Can avoid light to pass through specular reflection surface like this.

At leaded light post lateral surface spraying one deck reflecting coating, form reflecting coating.The combination of even curface and reflecting coating has just formed minute surface, can avoid the transmittance of leaded light post inside to go out like this.Even other light source guide light beam emission light is arranged, the cartridge outer surface reflection of reflecting coating also can be arranged, guaranteed the sharpness of LED demonstration and the purity of color.Owing to originally will be directed into correct display port from the light that cylinder exhales in a large number, and make the light conductivity of leaded light post also be improved.

Here, reflecting coating can have a variety of, has high reflectivity all right as long as can guarantee to light.The coating that for example contains glass microballoon just has reflective function preferably, can be used as reflecting coating.

The advantage of this scheme is: 1, the incident light in the leaded light post external world has all been reflected away, avoided the generation of optical crosstalk and mixed light problem; 2, prevent the inner outside transmission of light that needs of leaded light post, improved the light conductivity of leaded light post.

To sum up, the utility model embodiment increases surface-treated layer by the side external surface to the leaded light post, in order to reduce or to avoid leaded light post inside or light from outside to penetrate the leaded light post and the phenomenon of optical crosstalk between the leaded light post or mixed light takes place, thereby improve the light conductivity of leaded light post, improve the sharpness and the fiduciary level of light conduction.

Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from spirit and scope of the present utility model.Like this, if of the present utility model these are revised and modification belongs within the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these changes and modification interior.

Claims

1, a kind of leaded light post is characterized in that, comprises surface-treated layer;

2, leaded light post as claimed in claim 1 is characterized in that, described surface-treated layer is the frosted processing layer.

3, leaded light post as claimed in claim 2 is characterized in that, described frosted processing layer is used for diffuse reflection and penetrates in its surperficial light by coarse the obtaining of side external surface polishing with described leaded light post.

4, leaded light post as claimed in claim 1 is characterized in that, described surface-treated layer is every the light coating.

5, leaded light post as claimed in claim 4 is characterized in that, describedly is used for diffuse reflection every the light coating and penetrates in its surperficial light.

6, leaded light post as claimed in claim 1 is characterized in that, described surface-treated layer is a reflecting coating.

7, leaded light post as claimed in claim 6 is characterized in that, described reflecting coating is used for direct reflection and penetrates in its surperficial light.

8, as claim 6 or 7 described leaded light posts, it is characterized in that described reflecting coating is the coating that contains glass microballoon.