CN201845091U - Light-guide component and electronic device employing same - Google Patents

Light-guide component and electronic device employing same Download PDF

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Publication number
CN201845091U
CN201845091U CN2010205306608U CN201020530660U CN201845091U CN 201845091 U CN201845091 U CN 201845091U CN 2010205306608 U CN2010205306608 U CN 2010205306608U CN 201020530660 U CN201020530660 U CN 201020530660U CN 201845091 U CN201845091 U CN 201845091U
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CN
China
Prior art keywords
light
conducting member
layer
optical waveguide
light conducting
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Expired - Fee Related
Application number
CN2010205306608U
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Chinese (zh)
Inventor
范小利
马宝宝
马雷
侯文林
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Lenovo Beijing Ltd
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Lenovo Beijing Ltd
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Priority to CN2010205306608U priority Critical patent/CN201845091U/en
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Publication of CN201845091U publication Critical patent/CN201845091U/en
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Expired - Fee Related legal-status Critical Current

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Abstract

The utility model provides a light-guide component and an electronic device employing the light-guide component. The light-guide component is a flexible component with multilayered and composite structure, wherein the multilayered and composite structure includes a plurality of light-guide layers, and light rays are transmitted singly in each light-guide layer. The light-guide component is flexible in shape and can be attached to a product with complex shape. The method for realization is simple. The light rays can be transmitted in the composite structured layers, so as to make the whole light-guide component integrally and uniformly to be lightened; and since the light rays can be transmitted by light-guide component through a plurality of single layers, therefore the loss of the light rays on corners with large curvature can be effectively reduced, to realize the uniform lightening of edges of complex planes.

Description

Light conducting member and comprise the electronic installation of this light conducting member
Technical field
The utility model relates to light conduction field, is specifically related to a kind of light conducting member and comprises the electronic installation of this light conducting member.
Background technology
Present electronic product configuration design becomes more diverse, thereby makes corresponding in-profile also complicated more various, realizes that as effective means how the edge uniformly light-emitting of the product of various construction profile is very significant problems.Solution commonly used at present mainly contains: 1) adopt the LED lamp bar of serial connection, its shortcoming is that cost, energy consumption are very high, and the inner wick of LED as seen; 2) electroluminescence, its shortcoming are that color is few, luminous intensity is low, operating voltage is high thereby power consumption is big, cost is high; 3) adopt the side emitting optical fiber, its shortcoming is that luminous intensity is low, and brightness is not enough, and optical loss is very big in the deep camber corner; 4) adopt thin core lateral emitting twisting fibers (being about to stranded large diameter optical fiber, the alternative single large diameter side emitting optical fiber of being woven into of side emitting optical fiber of some minor diameters), its shortcoming is that luminescence efficiency is low, cost is high.And said method all is difficult to use on computer product at present.
The utility model content
The purpose of this utility model provides a kind of novel light conducting member, and the edge uniformly light-emitting that it can realize the complex outline product solves above-mentioned the problems of the prior art effectively.
At above-mentioned purpose, provide a kind of light conducting member according to first aspect of the present utility model, this light conducting member is the flexible member of multi-layer compound structure, and multi-layer compound structure comprises a plurality of optical waveguide layers, and light is transmission individually in each optical waveguide layer.
Further, according to the light conducting member of first aspect of the present utility model, wherein, multi-layer compound structure also comprises the alternately laminated and separation layer that fit each other with optical waveguide layer, and the refractive index of separation layer is lower than the refractive index of optical waveguide layer.
Further, according to the light conducting member of first aspect of the present utility model, wherein, the thickness of optical waveguide layer is 1~100 times of separation layer thickness.
Further, according to the light conducting member of first aspect of the present utility model, wherein, the thickness of each separation layer is not less than 5 microns.
Further, according to the light conducting member of first aspect of the present utility model, wherein, the thickness of each optical waveguide layer is less than 1/10 of the minimum bending radius of light conducting member.
Also provide a kind of electronic installation according to second aspect of the present utility model, this electronic installation comprises the leaded light structure, and light conducting member is the flexible member of multi-layer compound structure, and multi-layer compound structure comprises a plurality of optical waveguide layers, and light is transmission individually in each optical waveguide layer.
Further, according to the electronic installation of second aspect of the present utility model, wherein, multi-layer compound structure also comprises the alternately laminated and separation layer that fit each other with optical waveguide layer.
Further, according to the electronic installation of second aspect of the present utility model, wherein, the thickness of optical waveguide layer is 1~100 times of separation layer thickness.
Further, according to the electronic installation of second aspect of the present utility model, wherein, the thickness of separation layer is not less than 5 microns.
Further, according to the electronic installation of second aspect of the present utility model, wherein, the thickness of each optical waveguide layer is less than 1/10 of the minimum bending radius on the light conducting member.
The utlity model has following technique effect:
According to light conducting member of the present utility model is the flexible member of multi-layer compound structure, its character softness (flexible conformal), can be fitted in complex-shaped product edge (comprising the deep camber corner), implementation is simple, light can transmit in the composite construction layer of light conducting member, realize the whole uniformly light-emitting of whole light conducting member thus, and light conducting member is by a plurality of individual layer transmission rays, can reduce the loss of light effectively, thereby realize the uniformly light-emitting at complex plane edge in the deep camber corner.
Should be appreciated that above generality is described and the following detailed description is all enumerated and illustrative, purpose is in order to provide further instruction to claimed the utility model.
Description of drawings
Accompanying drawing constitutes the part of this instructions, is used to help further understand the utility model.These accompanying drawings illustrate embodiment more of the present utility model, and are used for illustrating principle of the present utility model with instructions.Identical in the accompanying drawings parts are represented with identical label.In the accompanying drawing:
Fig. 1 shows the synoptic diagram according to the light conducting member of the utility model embodiment;
Fig. 2 shows the partial structurtes figure according to the light conducting member of the utility model embodiment;
Fig. 3 shows the partial enlarged drawing according to the light conducting member of the utility model embodiment;
Fig. 4 shows a kind of structure according to the light conducting member of the utility model embodiment; And
The light conducting member structure that Fig. 5 shows among Fig. 4 is installed in the interior state of notebook.
Embodiment
Below in conjunction with instantiation and with reference to accompanying drawing embodiment of the present utility model is carried out exemplary illustration.
At first, wherein schematically show structure according to the light conducting member of the utility model embodiment with reference to Fig. 1-3.As shown in the figure, the light conducting member 10 in the present embodiment is the flexible member of multi-layer compound structure, and its multi-layer compound structure comprises a plurality of optical waveguide layers 11, and light can transmission individually in each optical waveguide layer.This light conducting member 10 character softnesses (flexible conformal), can be fitted in complex-shaped product edge (comprising the deep camber corner), can easily pointolite be converted to line source thus, promptly the LED pointolite is set respectively at the two ends of flexible light-conducting member 10, the light that sends can transmit in the composite construction layer of light conducting member 10, realize whole light conducting member 10 whole uniformly light-emittings thus, and light conducting member 10 is by a plurality of individual layer transmission rays, can reduce the loss of light effectively, thereby realize the uniformly light-emitting at complex plane edge in the deep camber corner.
Further, as being clearly shown that among Fig. 1, the light conducting member 10 of present embodiment also comprises and optical waveguide layer 11 arranged alternate and the separation layer 12 of fitting each other.In that separation layer 13 is set between the adjacent optical waveguide layer 11 mainly is in order to make better transmission in optical waveguide layer 11 of light, just make light that total reflection takes place in optical waveguide layer, and this just need be provided with separation layer 12 between optical waveguide layer 11, and the refractive index of separation layer 12 will be lower than the refractive index of optical waveguide layer 11, optical waveguide layer 11 is generally the higher transparent polymeric resin of refractive index, and separation layer 12 is generally the low relatively resin of refractive index, light only from optically denser medium (refractive index is big) under the situation that optically thinner medium (refractive index is little) is propagated, total reflection effect could take place.At this moment, the conduct far of the light that total reflection effect causes is arranged in optical waveguide layer 11, in separation layer 12, then do not have.By this set, when light sends from light source, inject in the optical waveguide layer 11 and therein and propagate, behind the applying interface that arrives optical waveguide layer 11 and separation layer 12, light can be folded in the optical waveguide layer 11 according to the principle of light total reflection and conduction once more.The critical angle of incidence that the light total reflection takes place depends on the relative index of refraction difference of optical waveguide layer 11 and separation layer 12, can select the concrete matching way of optical waveguide layer 11 and separation layer 12 according to the needs of actual light transmission.At this moment, will be configured to substantially 1~100 times as the thickness of optical waveguide layer 11 for the thickness of separation layer 12.Design is that can do is thicker, can accept at product maximum curvature place optical loss as long as guarantee because the thickness of separation layer 12 as long as surpass 5 microns, can finish the function of edge reflection light, and the effect of optical waveguide layer 11 is conducting light like this.
Optical waveguide layer 11 for transmission ray, in order to guarantee that light still has good laser propagation effect in the corner (especially deep camber corner) of flexible light-conducting member 10, reduce as far as possible and avoid optical loss, therefore the thickness of optical waveguide layer 11 should need be set within the specific limits, particularly, the Thickness Design with optical waveguide layer 11 becomes less than 1/10 of the minimum bending radius on the light conducting member 10.Basic design concept is as follows, light guide structure layer for a certain thickness, after its curvature reaches a particular value, the remarkable optical loss that will take place in the knee of deep camber, and the thickness of optical waveguide layer 11 is thin more, the curvature that remarkable optical loss then can take place is big more, and light conducting member 10 bends to the corner that can produce a minimum bending radius behind the given shape, Dui Ying curvature maximum herein, should make this maximum curvature be not more than the above-mentioned curvature that optical loss can take place, need thus the thickness of optical waveguide layer 11 is approached as far as possible, to increase the intrinsic curvature that optical loss takes place.Therefore, the thickness of optical waveguide layer 11 can be determined at different marginal texture shapes in the light conducting member 10.Simultaneously, for separation layer 12, in order to guarantee enough light isolation effects, its thickness preferably should be not less than 5 microns.
In addition, the structural sheet that comprises in the light conducting member 10 can not wait from 3 layers to 1000 layers, is preferably 5~51 layers.This need according to light conducting member 10 specifically should be used for determine that just the shape that is configured to according to light conducting member 10 needs is determined.
Above-mentionedly can be applied in the multiple electronic product, for example the A Cover edge of notebook, C Cover edge, D Cover edge, Touchpad edge, Logo edge etc. according to light conducting member 10 of the present utility model.At difform product, flexible light-conducting member 10 is configured to and the corresponding shape of product edge, and then in installing in position.Fig. 4 and Fig. 5 show an application example of light conducting member of the present utility model, are applied in specifically in the notebook, to be implemented in shell rim place uniformly light-emitting.
Describing below in conjunction with the implementation method of example to light conducting member of the present utility model, it should be noted that the job operation, rapidoprint and the material prescription that wherein adopt all only are exemplary, is not to be used to limit the utility model.
The method processing that light conducting member 10 of the present utility model can adopt MULTILAYER COMPOSITE to extrude, thus two kinds of compound extruding of structural sheet are made light conducting member, and the method for this disposable compound extrusion moulding is easy to process and with low cost, is a kind of preferred processing mode.Simultaneously, under the situation that satisfies necessary light conduction and light buffer action, those skilled in the art can select material prescription commonly used for use voluntarily according to needs of production, the prescription of optical waveguide layer 11 and separation layer 12 are carried out anyly suitably adjusting, so that satisfy various product demands.
After the prescription of determining good structural sheet, just follow-up processing and assembly manipulation can have been carried out.A concrete operating procedure example is as follows:
--prepare various starting material by the prescription of determining;
--with various raw material premixs and make the starting material grain;
--carry out the compound extrusion moulding light conducting member;
--length is as requested cut off continuous light conducting member;
--the light conducting member of predetermined length is assembled into product edge;
--at the light conducting member two ends that assemble led light source is set.
Has specific stepped construction according to light conducting member of the present utility model, and flexible conformal, can fit in the edge of product well and install, light can transmit in the rhythmo structure of light conducting member, and the structural sheet of thin thickness can realize that light conducting member integral body is luminous equably.
In addition, also provide a kind of electronic installation on the other hand according to of the present utility model, it comprises the light conducting member according to the utility model first aspect, and electronic installation comprises but is not limited to: light-emitting device, display device, computing machine and various photoconduction and light-sensitive unit etc.
Be preferred embodiment of the present utility model only below, be not limited to the utility model, for a person skilled in the art, the utility model can have various changes and variation.All any modifications of within spirit of the present utility model and principle, being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.

Claims (10)

1. a light conducting member is characterized in that,
Described light conducting member (10) is the flexible member of multi-layer compound structure, and described multi-layer compound structure comprises a plurality of optical waveguide layers (11), and light is transmission individually in each optical waveguide layer.
2. light conducting member according to claim 1 is characterized in that, described multi-layer compound structure also comprises the alternately laminated and separation layer (12) that fit each other with described optical waveguide layer, and the refractive index of described separation layer is lower than the refractive index of described optical waveguide layer.
3. light conducting member according to claim 2 is characterized in that, the thickness of described optical waveguide layer is 1~100 times of described separation layer thickness.
4. light conducting member according to claim 2 is characterized in that, the thickness of each described separation layer is not less than 5 microns.
5. light conducting member according to claim 1 is characterized in that, the thickness of each described optical waveguide layer is less than 1/10 of the minimum bending radius of described light conducting member.
6. an electronic installation is characterized in that, described electronic installation comprises light conducting member (10), and described light conducting member is the flexible member of multi-layer compound structure, and described multi-layer compound structure comprises a plurality of optical waveguide layers (11), and light is transmission individually in each optical waveguide layer.
7. electronic installation according to claim 6 is characterized in that, described multi-layer compound structure also comprises the alternately laminated and separation layer (12) that fit each other with described optical waveguide layer.
8. electronic installation according to claim 7 is characterized in that, the thickness of described optical waveguide layer is 1~100 times of described separation layer thickness.
9. electronic installation according to claim 7 is characterized in that, the thickness of each described separation layer is not less than 5 microns.
10. electronic installation according to claim 7 is characterized in that the thickness of each described optical waveguide layer is less than 1/10 of the minimum bending radius on the described light conducting member.
CN2010205306608U 2010-09-14 2010-09-14 Light-guide component and electronic device employing same Expired - Fee Related CN201845091U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010205306608U CN201845091U (en) 2010-09-14 2010-09-14 Light-guide component and electronic device employing same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010205306608U CN201845091U (en) 2010-09-14 2010-09-14 Light-guide component and electronic device employing same

Publications (1)

Publication Number Publication Date
CN201845091U true CN201845091U (en) 2011-05-25

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106324954A (en) * 2015-07-06 2017-01-11 联想(北京)有限公司 Electronic device
CN109964078A (en) * 2016-09-21 2019-07-02 Exa电子有限公司 Utilize the illumination component of light guiding film

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106324954A (en) * 2015-07-06 2017-01-11 联想(北京)有限公司 Electronic device
CN106324954B (en) * 2015-07-06 2018-12-14 联想(北京)有限公司 A kind of electronic equipment
CN109964078A (en) * 2016-09-21 2019-07-02 Exa电子有限公司 Utilize the illumination component of light guiding film

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110525

Termination date: 20190914

CF01 Termination of patent right due to non-payment of annual fee