CN2756950Y - Light conductive pipe - Google Patents
Light conductive pipe Download PDFInfo
- Publication number
- CN2756950Y CN2756950Y CN 200420095017 CN200420095017U CN2756950Y CN 2756950 Y CN2756950 Y CN 2756950Y CN 200420095017 CN200420095017 CN 200420095017 CN 200420095017 U CN200420095017 U CN 200420095017U CN 2756950 Y CN2756950 Y CN 2756950Y
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- CN
- China
- Prior art keywords
- arm
- light
- light pipe
- utility
- pipe
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a light conduction pipe which is used for conducting light rays emitted from a light source. The utility model comprises a first arm, a second arm and a reflection surface, wherein the first arm has a light reception end which is used for receiving the light rays, the second arm is connected with the first arm and the second arm has a light emission end which is used for emitting the light rays. The reflection surface is positioned on the external side of the connection position of the first arm and the second arm and is used for leading the light rays of the first arm to the second arm. The first arm and the second arm are formed in an integral forming mode through the injection of a mould, and the reflection surface forms a plane shape and is also formed when the first arm and the second arm are in integral forming. The light conduction pipe of the utility model leads the light rays of the first arm to the second arm through the plane reflection surface, the light loss is small, the utilization rate is high and the mould is convenient to manufacture.
Description
[technical field]
The utility model is about a kind of light pipe, refers to the light pipe that a kind of light utilization efficiency is high especially.
[background technology]
At present, electronic industry is flourish, electronic product has become the requirement that people produce and live, particularly small-sized electronic product is seen everywhere especially, as household appliances such as mobile phone, PDA(Personal Digital Assistant), telephone set, video disc player and remote controller thereof etc., it all has keyboard and the static indication system that is used for input information, control and operation.For making things convenient for it under environment with dark light, to use, usually need these electronic installation tools to show or deixis, it is that one or more luminous tube or other illuminating device are set on the circuit board of these electronic installations, the light irradiation keyboard or the display floater back side that illuminating device sends, thus can be at clear character or the Warning Mark that shows on it of keytop.Though this kind technology can solve its indication problem in dark surrounds, right its light distribution inequality, bright especially near the Lights section, severe patient even feel dazzling, and then too dim away from the Lights section.Light pipe is to be used for ray guidance that light source is sent to the precalculated position or convert the secondary light source of given shape to, it can solve above-mentioned deficiency, be widely used in the keyboard back light system of various mobile phones, PDA(Personal Digital Assistant), telephone set, also be widely used in the static indication system of electronic product, communication apparatus.
A kind of existing light pipe can be with reference to Chinese patent 01252803.X patent, and this patent discloses a kind of guiding device 5, please refer to Fig. 7, and it comprises that light pipe 50, camera lens 60 and its end are provided with fastening end 70.This light pipe 50 is that an end is circular-arc tubular body, comprises receiving light end 51, luminous end 52 and connecting the arc link 53 of receiving light end 51 and luminous end 52, and this light pipe 50 can send light transmission to the luminous end 52 that receipts light end 51 receives.Only, it adopts arc link 53 to connect and receives light end 51 and luminous ends 52, and light can produce bigger bending loss at arc link 53 places, promptly have part light penetrate the surface of light pipe in these arc link 53 places and penetrate thus light utilization efficiency lower.As everyone knows, most portable belt electronic products all adopt battery as the energy, the light utilization efficiency of existing light pipe is low, certainly will need to increase the luminous intensity of light source for reaching normal result of use, simultaneously, make portable electric product battery life cycle shorten, and can increase the caloric value of portable type electronic product.In addition, the design of the mould of arc light pipe is also difficult.
At the problems referred to above, provide the higher and easily manufactured light pipe of a kind of light utilization efficiency real for necessary.
[utility model content]
The purpose of this utility model is to provide a kind of light utilization efficiency high and easily manufactured light pipe.
The utility model light pipe, be used to conduct the light that light source sends, comprise the first arm, second arm and a reflecting surface, this the first arm has a receipts light end and is used to receive light, this second arm links to each other with the first arm, and itself and the first arm are integrally formed and have a luminous end and be used to launch light by mold injects, and this reflecting surface is plane, be positioned at the outside of the first arm and the second arm junction, be used for the light of the first arm is imported second arm.
Compare existing light pipe, the utility model light pipe imports second arm with a plane reflection face with the light in the first arm, and with respect to existing arc link, its loss is little, light utilization efficiency height, and the reflecting surface of the planar shaped mfg. moulding die of being more convenient for.
In addition, the utility model light pipe is received the light end at it recess is set, and further increases the absorptivity of light pipe, promotes the light utilization efficiency of light source.
Once more, as required the luminous end of the utility model light pipe is arranged to convex surface or concave surface or is added disperse body, can make the utility model light pipe produce different launching effects at luminous end.
[description of drawings]
Fig. 1 is the stereogram of the utility model light pipe first embodiment.
Fig. 2 is the middle section figure of the utility model light pipe first embodiment.
Fig. 3 is the stereogram of the utility model light pipe second embodiment.
Fig. 4 is the middle section figure of the utility model light pipe second embodiment.
Fig. 5 is the middle section figure of the utility model light pipe the 3rd embodiment.
Fig. 6 is the middle section figure of the utility model light pipe the 4th embodiment.
Fig. 7 is the schematic diagram of existing light pipe.
[specific embodiment]
Please refer to Fig. 1 and Fig. 2, the utility model light pipe 1 is roughly the L type, and it comprises the first arm 11, second arm 12 and the reflecting surface 13 between the first arm 11 and second arm 12.Wherein the first arm 11 comprises that a receipts light end 110 is used to receive the light that light source (figure does not show) sends, reflecting surface 13 is positioned at the outside of the first arm 11 and second arm, 12 junctions, it is a plane, be used for the light of the first arm 11 is imported second arm 12, second arm 12 has a luminous end 120, and being used for derives light from second arm 12.This first arm 11 and second arm 12 are by mold injects moulding manufacturing, and reflecting surface 13 also is to form in the lump when injection moulding.For increasing the reflecting effect of reflecting surface, also can be at this reflecting surface plating reflectance coating.
Please refer to Fig. 3 and Fig. 4, the utility model second embodiment light pipe 2 and the first embodiment light pipe 1 are roughly the same, also comprise the first arm 21 and second arm 22 and the reflecting surface 23 between the first arm 21 and second arm 22.Wherein the first arm 21 comprises that a receipts light end 210 is used to receive the light that light source (figure does not show) sends, for more fully absorbing the light that light source sends, receive light end 210 and also offer a recess 211, light source can be arranged on this recess 211 and light that light source sends can be to greatest extent received by the first arm 21 of light pipe 2.Reflecting surface 23 is positioned at the outside of the first arm 21 and second arm, 22 junctions, it typically is a plane is used for the light of the first arm 21 is imported second arm 22, second arm 22 has a luminous end 220, be used for light is derived from second arm 22, this the first arm 21 and second arm 22 are one-body molded by injection by mould, and reflecting surface 23 also is to form in the lump when injection moulding.Equally, also can be at these reflecting surface 23 plating reflectance coatings to increase its reflecting effect.
Please refer to Fig. 5, the utility model the 3rd embodiment light pipe 3 and the first embodiment light pipe 1 are also roughly the same, comprise the first arm 31 and second arm 32 and the reflecting surface 33 between the first arm 31 and second arm 32.Wherein the first arm 31 comprises that a receipts light end 310 is used to receive the light that light source sends, reflecting surface 33 is positioned at the outside of the first arm 31 and second arm, 32 junctions, it typically is a plane is used for the light of the first arm 31 is imported second arm 32, second arm 32 has a luminous end 320, and being used for derives light from second arm 32.This luminous end 320 is arranged to convex surface and is formed comparatively bright hot spot so that the light in the light pipe 3 is polymerized to ad-hoc location, and when light pipe 3 was used in indication mechanism in the household electrical appliances panel, this hot spot feature was bright, thereby has indicating effect preferably.This first arm 31 and second arm 32 are one-body molded by injection by mould, and reflecting surface 33 also is to form in the lump when injection moulding.Equally, also can be at these reflecting surface 33 plating reflectance coatings to increase its reflecting effect.Also be appreciated that and luminous end 320 can be arranged to concave shape, the bigger irradiated area with the divergence of beam in the light pipe can shine in a big way when light pipe is used in illuminator or back light system, can make illuminating effect be tending towards soft simultaneously.
Please refer to Fig. 6, the utility model the 4th embodiment light pipe 4 and the first embodiment light pipe 1 are also roughly the same, comprise the first arm 41 and second arm 42 and the reflecting surface 43 between the first arm 41 and second arm 42.Wherein the first arm 41 comprises that a receipts light end 410 is used to receive the light that light source sends, reflecting surface 43 is positioned at the outside of the first arm 41 and second arm, 42 junctions, the light in the first arm 41 is converted to second arm 42, second arm 42 has a luminous end 420, being used for light is derived from second arm 42, is the launching effect that increases luminous end 420, and what this luminous end 420 was provided with a larger cross-section disperses body 421, light is being dispersed body 421 scattering-ins, and then can shine bigger scope.This first arm 41 and second arm 42 and disperse body 421 be by mould by the injection one-body molded, reflecting surface 43 also is to form in the lump when injection moulding.
Be appreciated that, the above-mentioned light pipe of the utility model all can be received the light end at it and one recess is set to increase the acceptance rate of light, also can convex surface or concave surface be set or disperse body, also can change the launching effect of luminous end simultaneously by adding optical modules such as lens at luminous end to change the launching effect of light.
Light pipe of the present utility model can extensively be used in the keyboard illumination or the back light system of portable electron devices such as the indication mechanism of household appliances and mobile phone, this light pipe imports second arm with a plane reflection face with the light in the first arm, second arm has a luminous end, with respect to existing arc link, its loss is little, light utilization efficiency height, and the reflecting surface of the planar shaped mfg. moulding die of being more convenient for.In addition, the utility model light pipe is received the light end at it recess is set, and further increases the absorptivity of light pipe, promotes the light utilization efficiency of light source.Once more, as required, the luminous end of the utility model light pipe is arranged to convex surface or concave surface or adds disperse body, can make the utility model light pipe produce different launching effects at luminous end.
Claims (10)
1. light pipe, be used to conduct the light that light source sends, comprise the first arm, second arm, this the first arm has a receipts light end that is used to receive light, this second arm links to each other with the first arm, and itself and the first arm are integrally formed and have a luminous end that is used to launch light that it is characterized in that: this light pipe also comprises a reflecting surface, it is plane, is positioned at the outside of the first arm and the second arm junction.
2. light pipe as claimed in claim 1 is characterized in that: this reflecting surface is to form in the lump with the first arm and second arm.
3. light pipe as claimed in claim 1 is characterized in that: plating has reflectance coating on this reflecting surface.
4. light pipe as claimed in claim 1 is characterized in that: this receipts light end has a recess.
5. as claim 1 or 2 or 3 described light pipes, it is characterized in that: this luminous end is a convex surface.
6. as claim 1 or 2 or 3 described light pipes, it is characterized in that: this luminous end is a concave surface.
7. as claim 1 or 2 or 3 described light pipes, it is characterized in that: this luminous end is provided with disperses body.
8. light pipe as claimed in claim 7 is characterized in that: this disperses body is a square body.
9. light pipe as claimed in claim 8 is characterized in that: dispersing body is to form in the lump with the first arm and second arm.
10. light pipe as claimed in claim 1 is characterized in that: this light pipe is to be made by the lucite of high light transmittance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420095017 CN2756950Y (en) | 2004-11-06 | 2004-11-06 | Light conductive pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420095017 CN2756950Y (en) | 2004-11-06 | 2004-11-06 | Light conductive pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2756950Y true CN2756950Y (en) | 2006-02-08 |
Family
ID=35965338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420095017 Expired - Lifetime CN2756950Y (en) | 2004-11-06 | 2004-11-06 | Light conductive pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2756950Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101493543B (en) * | 2008-01-17 | 2012-02-01 | 蒂雅克股份有限公司 | Ring shaped light guide and electronic equipment with the same |
| CN102957772A (en) * | 2011-08-25 | 2013-03-06 | 比亚迪股份有限公司 | Backlight assembly of keypad of mobile phone |
| CN103528023A (en) * | 2013-10-20 | 2014-01-22 | 安徽师范大学 | Designing scheme of light guide pipe with high light use ratio |
| CN105704410A (en) * | 2016-01-13 | 2016-06-22 | 青岛海信电器股份有限公司 | Television indicating lamp and television |
| EP3095642A1 (en) * | 2015-05-19 | 2016-11-23 | Illinois Tool Works Inc. | Light guiding device with improved light cover |
| CN108124088A (en) * | 2017-12-22 | 2018-06-05 | 广安长明高端产业技术研究院 | The method of micro-fluidic chip camera arrangement and shooting micro-fluidic chip based on smart mobile phone and simple light pipe |
-
2004
- 2004-11-06 CN CN 200420095017 patent/CN2756950Y/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101493543B (en) * | 2008-01-17 | 2012-02-01 | 蒂雅克股份有限公司 | Ring shaped light guide and electronic equipment with the same |
| CN102957772A (en) * | 2011-08-25 | 2013-03-06 | 比亚迪股份有限公司 | Backlight assembly of keypad of mobile phone |
| CN103528023A (en) * | 2013-10-20 | 2014-01-22 | 安徽师范大学 | Designing scheme of light guide pipe with high light use ratio |
| CN103528023B (en) * | 2013-10-20 | 2015-11-18 | 安徽师范大学 | A kind of design of high light utilization efficiency light pipe |
| EP3095642A1 (en) * | 2015-05-19 | 2016-11-23 | Illinois Tool Works Inc. | Light guiding device with improved light cover |
| WO2016186911A1 (en) * | 2015-05-19 | 2016-11-24 | Illinois Tool Works Inc. | Light guide with improved light cover |
| US10286841B2 (en) | 2015-05-19 | 2019-05-14 | Illinois Tool Works Inc. | Light guide with opaque light cover applied by injection molding |
| EP4242059A3 (en) * | 2015-05-19 | 2023-11-22 | Illinois Tool Works Inc. | Light guide with improved light cover |
| CN105704410A (en) * | 2016-01-13 | 2016-06-22 | 青岛海信电器股份有限公司 | Television indicating lamp and television |
| CN108124088A (en) * | 2017-12-22 | 2018-06-05 | 广安长明高端产业技术研究院 | The method of micro-fluidic chip camera arrangement and shooting micro-fluidic chip based on smart mobile phone and simple light pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20141106 Granted publication date: 20060208 |