CN114994826A - Light guide element and USB interface light-emitting structure thereof - Google Patents
Light guide element and USB interface light-emitting structure thereof Download PDFInfo
- Publication number
- CN114994826A CN114994826A CN202210582459.1A CN202210582459A CN114994826A CN 114994826 A CN114994826 A CN 114994826A CN 202210582459 A CN202210582459 A CN 202210582459A CN 114994826 A CN114994826 A CN 114994826A
- Authority
- CN
- China
- Prior art keywords
- light guide
- light
- guide element
- total reflection
- incident
- Prior art date
- 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.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V2200/00—Use of light guides, e.g. fibre optic devices, in lighting devices or systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
- F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
本发明公开了一种导光元件及其USB接口发光结构,该导光元件包括导光元件本体和多个导光环;导光元件本体分别与多个导光环相连,用于将单个光源发出的入射光束分别导入多个导光环中;各导光环的前端面和后端面分别为出光面和花纹面。本发明对光的利用效率高,发光均匀性好,发光效率高。
The invention discloses a light guide element and a light-emitting structure of a USB interface thereof. The light guide element comprises a light guide element body and a plurality of light guide rings; The incident light beams are respectively guided into a plurality of light guide rings; the front end surface and the rear end surface of each light guide ring are respectively the light emitting surface and the pattern surface. The invention has high utilization efficiency of light, good luminous uniformity and high luminous efficiency.
Description
技术领域technical field
本发明涉及USB接口的发光结构。The invention relates to a light-emitting structure of a USB interface.
背景技术Background technique
图1示出了现有的一种车载USB接口装置的整体结构示意图,图2示出了现有的车载USB接口的发光结构示意图,请参考图1和图2。图1所示的现有车载USB接口装置包括壳体90、两个LED光源91、两个导光元件92、USB接口93和PCB板94。壳体90设有用于露出USB接口93的USB端口。LED光源91和USB接口93均设置在同一块PCB板94上。两个LED光源91和两个导光元件92共同组成车载USB接口的发光结构,工作时,两个LED光源91发出的直射光分别射入由漫射(diffuse)导光材料制成的两个导光元件92,通过导光元件92将光传导至位于USB接口93周边的发光面921,实现点亮效果,以将USB端口的周围边界点亮。FIG. 1 shows a schematic diagram of the overall structure of an existing vehicle-mounted USB interface device, and FIG. 2 shows a schematic diagram of a light-emitting structure of an existing vehicle-mounted USB interface. Please refer to FIG. 1 and FIG. 2 . The conventional vehicle-mounted USB interface device shown in FIG. 1 includes a
现有的车载USB接口发光结构需要的LED数量较多,发光均匀性较差,并且效率极低。采用图2所示点亮一个USB端口的USB接口发光结构,需要用到两颗LED分别放置在USB端口的上侧和下侧,对于有两个USB端口的USB产品,则需要采用四颗LED才能实现均匀点亮效果。The existing vehicle-mounted USB interface light-emitting structure requires a large number of LEDs, has poor light-emitting uniformity, and has extremely low efficiency. Using the USB interface light-emitting structure that lights up one USB port as shown in Figure 2, two LEDs need to be placed on the upper and lower sides of the USB port respectively. For USB products with two USB ports, four LEDs need to be used. In order to achieve a uniform lighting effect.
发明内容SUMMARY OF THE INVENTION
本发明所要解决的技术问题在于提供一种导光元件及其USB接口发光结构,其对光的利用效率高,发光均匀性好,发光效率高。The technical problem to be solved by the present invention is to provide a light guide element and a light-emitting structure of its USB interface, which have high light utilization efficiency, good light-emitting uniformity and high light-emitting efficiency.
根据本发明的一个方面提供了一种导光元件,该导光元件包括导光元件本体和多个导光环;导光元件本体分别与多个导光环相连,用于将单个光源发出的入射光束分别导入多个导光环中;各导光环的前端面和后端面分别为出光面和花纹面。According to one aspect of the present invention, a light guide element is provided, the light guide element includes a light guide element body and a plurality of light guide rings; the light guide element body is respectively connected with the plurality of light guide rings, and is used for the incident light beam emitted by a single light source. The light guide rings are respectively introduced into a plurality of light guide rings; the front end surface and the rear end surface of each light guide ring are respectively the light emitting surface and the pattern surface.
进一步地,导光元件本体包括入光面和全反射面;入光面用于接收光源发出的入射光束,全反射面为以光源的中心为焦点的反射曲面,全反射面用于将经由入光面射入导光元件本体的入射光束的至少一部分以全反射的方式反射。Further, the light guide element body includes a light incident surface and a total reflection surface; the light incident surface is used to receive the incident light beam emitted by the light source, the total reflection surface is a reflective curved surface with the center of the light source as the focus, and the total reflection surface is used to At least a part of the incident light beam entering the light guide element body by the light surface is reflected by total reflection.
根据本发明的另一个方面,还提供了一种USB接口发光结构,其包括单个光源以及上述的导光元件;导光元件的多个导光环用于一一对应地分别环绕于多个USB接口的周围。According to another aspect of the present invention, a light-emitting structure for a USB interface is also provided, which includes a single light source and the above-mentioned light guide element; a plurality of light guide rings of the light guide element are used to surround a plurality of USB interfaces in a one-to-one correspondence, respectively. around.
采用上述技术方案后,本发明至少具有以下优点和特点:After adopting the above-mentioned technical scheme, the present invention at least has the following advantages and characteristics:
1、本发明实现了通过单个光源点亮多个USB端口,大大提高了光的利用效率;1. The present invention realizes the lighting of multiple USB ports through a single light source, which greatly improves the utilization efficiency of light;
2、导光环的花纹面可将光反射至出光面,保证了出光方向,不仅提高了出光效率,而且使发出的光更加均匀;2. The patterned surface of the light guide ring can reflect the light to the light-emitting surface, ensuring the light-emitting direction, not only improving the light-emitting efficiency, but also making the emitted light more uniform;
3、通过采用全反射光学形式,可将光进行聚集并传导至发光处,提升了发光效率。3. By adopting the form of total reflection optics, the light can be gathered and transmitted to the light-emitting place, which improves the light-emitting efficiency.
附图说明Description of drawings
图1示出了现有的一种车载USB接口装置的整体结构示意图。FIG. 1 shows a schematic diagram of the overall structure of an existing vehicle-mounted USB interface device.
图2示出了现有车载USB接口的发光结构示意图。FIG. 2 shows a schematic diagram of a light-emitting structure of an existing vehicle-mounted USB interface.
图3示出了本发明第一实施例的USB接口发光结构的示意图。FIG. 3 shows a schematic diagram of a light-emitting structure of a USB interface according to the first embodiment of the present invention.
图4示出了本发明第一实施例的导光元件的结构示意图。FIG. 4 shows a schematic structural diagram of the light guide element according to the first embodiment of the present invention.
图5示出了本发明第一实施例的导光元件的光线路径示意图。FIG. 5 shows a schematic diagram of the light path of the light guide element according to the first embodiment of the present invention.
图6示出了本发明第一实施例的导光元件的全反射结构的光线路径示意图,其中,该全反射结构包括球形凹槽。6 shows a schematic diagram of a light path of the total reflection structure of the light guide element according to the first embodiment of the present invention, wherein the total reflection structure includes spherical grooves.
图7示出了本发明第二实施例的导光元件的全反射结构的光线路径示意图,其中,该全反射结构不包括球形凹槽。FIG. 7 shows a schematic diagram of the light path of the total reflection structure of the light guide element according to the second embodiment of the present invention, wherein the total reflection structure does not include spherical grooves.
图8示出了根据本发明第三实施例的USB接口发光结构的示意图。FIG. 8 shows a schematic diagram of a light-emitting structure of a USB interface according to a third embodiment of the present invention.
具体实施方式Detailed ways
下面结合附图和具体实施例对本发明进行详细说明。The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
请参阅图3至图6。根据本发明第一实施例的USB接口发光结构,包括光源1和导光元件2。See Figures 3 to 6. The USB interface light-emitting structure according to the first embodiment of the present invention includes a
在本实施例中,光源1的数量为一个,光源1为LED光源。In this embodiment, the number of
导光元件2包括导光元件本体2a和多个导光环2b。导光元件本体2a分别与多个导光环2b相连,用于将光源1发出的入射光束分别导入多个导光环2b中。多个导光环2b用于一一对应地分别环绕于多个USB接口的周围。The
导光元件2可以是高分子聚合物所成型的部件,亦可以是光学玻璃所成型的部件。较佳地,导光元件本体2a的材质为透明材料,各导光环2b的材质为漫射材料。本实施例中,导光元件本体2a为PC透明材料,各导光环2b的材质为PC漫射(diffuse)材料,导光元件本体2a与多个导光环2b采用双色注塑一体注塑成型。The
本实施例中,各导光环2b的形状为圆角矩形环,该形状可以提高美观度,同时能进一步减少光线在其中传播时发生的损耗,提高出光效率。导光环2b的形状可根据实际需求进行调整,不限于圆角矩形环,也可是圆环、方环或其它不规则形状的环。In this embodiment, the shape of each
各导光环2b的前端面201和后端面202分别为出光面和花纹面,花纹面用于将射入导光环2b中的光的至少一部分反射至出光面。在与出光面相对的后端面上设置花纹,可以调整光的主要照射方向,使其大部分光线是沿着出光面的方向照射。相比于将花纹设置于与出光面垂直的侧面上,将花纹设置于与出光面相对的后端面上,在同等情况下出光效率可提高大约50%。此外,由于后端面202为平面,在平面上加工花纹更容易,加工成本更低。The
花纹面的花纹主要用于改变出光方向。本实施例中,花纹面的花纹为点阵花纹,点阵式花纹具有出光均匀、加工容易、成本低等优点。在其它的实施方式中,可将点阵花纹可替换成其他形式的微花纹。The pattern of the pattern surface is mainly used to change the direction of light. In this embodiment, the pattern of the pattern surface is a lattice pattern, and the lattice pattern has the advantages of uniform light output, easy processing, and low cost. In other embodiments, the lattice pattern may be replaced with other forms of micropatterns.
在图中所示的示例中,导光环2b的数量为两个,导光元件本体2a包括导光底座21和两个导光立柱22。两个导光立柱22的底端分别与导光底座21相连,两个导光环2b分别与两个导光立柱22的顶端相连。In the example shown in the figure, the number of
导光底座21包括全反射结构、第一V形反射面213、第一反射面214和第二反射面215。全反射结构用于将光源1射入导光底座21内的入射光束的至少一部分全反射以形成平行光线3a,并将平行光线3a反射至第一V形反射面213。第一V形反射面213用于将来自全反射结构的平行光线3a分别向两侧反射,形成传播方向相反的第一路平行光3b和第二路平行光3c。第一反射面214和第二反射面215分别位于第一V形反射面213的两侧,用于分别将第一路平行光3b和第二路平行光3c反射进两个导光立柱22。两个导光立柱22用于分别将第一路平行光3b和第二路平行光3c传导至两个导光环2b。The
较佳地,各导光环2b与导光元件本体2a的相交处设有V形槽216,V形槽216的两个侧面构成了第二V形反射面,将从导光元件本体2a的导光立柱22射入的光线分别向两侧反射,形成分别进入导光环2b的两路平行光。以平行光方式进入导光环,路径单一,减少了光线传播的损耗,由于每路平行光只需在导光环2b一半的周长中传播,因此降低了传播路径的长度,提升了出光的均匀性。Preferably, a V-shaped
各导光环2b通过点阵式花纹改变出光方向,将光向开设于外壳、用于露出USB接口的USB端口处照射,达到点亮效果。Each light-guiding
在该第一实施例中,全反射结构包括全反射面211和设置于导光底座21的入光面210的球形凹槽212。全反射面211为以光源1的中心为焦点的反射曲面,球形凹槽212低于光源1的中心并以光源1的中心为球心,球形凹槽212的深度H需满足0<H<R,R为球形凹槽212的半径,R小于上述反射曲面的焦距。In the first embodiment, the total reflection structure includes a
请参阅图6。球形凹槽212使光源1发出的入射光束沿球形凹槽底面的法向方向射入导光元件本体2a,并部分地入射到反射曲面211。由于球形凹槽212的中心为光源1的中心,光线通过球形凹槽212后不发生折射,此时光线到达反射曲面211时还是相当于从光源1处发出的笔直光线,而反射曲面211的焦点为光源1的中心,因此光线经过反射曲面211反射后射出的是平行光,与路径方向一致。See Figure 6. The
通过设置球形凹槽和全反射面形成平行光,在第一V形反射面、第一反射面和第二反射面、第二V形反射面处将光线继续以平行光反射,导光环的出光面的背面设置点阵花纹,并将导光环设置为圆角矩形结构,可以实现LED功率只需为本申请说明书背景技术部分介绍的传统方案的LED功率的1/8便可达到相同亮度要求,相比之下效率提升了约32倍,对于光的利用大大提高,并且整体均匀性可以达到90%以上,更适合于对能耗敏感的新能源车。By setting the spherical groove and the total reflection surface to form parallel light, the light is continuously reflected as parallel light at the first V-shaped reflection surface, the first reflection surface and the second reflection surface, and the second V-shaped reflection surface, and the light of the light guide ring is emitted. The dot matrix pattern is set on the back of the surface, and the light guide ring is set as a rounded rectangular structure, so that the LED power can achieve the same brightness requirement with only 1/8 of the LED power of the traditional solution introduced in the background technology part of the specification of this application. In contrast, the efficiency is increased by about 32 times, the utilization of light is greatly improved, and the overall uniformity can reach more than 90%, which is more suitable for new energy vehicles that are sensitive to energy consumption.
在该第一实施例中,导光底座21呈T形,T形导光底座21包括竖边部21a和横边部21b。全反射结构设置于竖边部21a的一端,竖边部21a的另一端与横边部21b的第一侧相连。第一V形反射面213由设置于横边部21b第二侧的V形槽的两个侧面构成,横边部21b的第二侧与横边部21b的第一侧相对。第一反射面214和第二反射面215由分别设置于横边部21b两端的斜面构成。两个导光立柱22的底端分别与横边部21b的顶端相连。In the first embodiment, the
全反射结构提高了光源的光利用效率。在全反射结构中设置球形凹槽212是为了减少光的折射,如果没有该槽也可实现全反射效果,只是会由于其折射的偏移略微降低光的利用效率。在本发明的第二实施例中,全反射结构没有设置球形凹槽,如图7所示,光经过入光面210后会发生折射,光线偏移,此时通过反射曲面211反射后光线会发生偏移,无法形成平行光(但可以形成大体平行的光出射),与路径不一致,部分光会漏掉。通过设置球形凹槽,出光效率提升10%左右。The total reflection structure improves the light utilization efficiency of the light source. The purpose of disposing the
图8示出了根据本发明第三实施例的USB接口发光结构的示意图。第三实施例与第一实施例的主要不同之处在于,导光元件本体2a被设置成圆柱形的光导条结构,通过光导条将光传导至各个导光环2b处。其中,导光元件本体2a包括主导光条25和多个分支导光条26;主导光条25的一端用于接收单个光源1发出的入射光束,主导光条25的另一端分别与多个分支导光条26的一端相连,以将入射光束分别传导至多个分支导光条26中,多个分支导光条26的另一端一一对应地分别与多个导光环2b相连。FIG. 8 shows a schematic diagram of a light-emitting structure of a USB interface according to a third embodiment of the present invention. The main difference between the third embodiment and the first embodiment is that the light
在传统的车载USB接口发光结构中,两个USB端口需要四颗LED光源才可以点亮,而采用本发明实施例的USB接口发光结构只需要一颗LED就可以点亮,因此本发明提高了光的利用效率。本发明不仅适用于两个USB端口的USB产品,而且适用于更多USB端口的USB产品。对于具有更多USB端口(如三个、四个等)的产品,只需增加导光环的数量,将光传导至每个导光环即可。In the traditional vehicle USB interface lighting structure, two USB ports need four LED light sources to light up, but the USB interface lighting structure using the embodiment of the present invention only needs one LED to light up, so the present invention improves the light utilization efficiency. The present invention is not only applicable to USB products with two USB ports, but also applicable to USB products with more USB ports. For products with more USB ports (such as three, four, etc.), simply increase the number of light guide rings and direct light to each light guide ring.
显然,本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样,倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内,则本发明也意图包含这些改动和变型在内。It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention. Thus, provided that these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.
Claims (18)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202210582459.1A CN114994826A (en) | 2022-05-26 | 2022-05-26 | Light guide element and USB interface light-emitting structure thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202210582459.1A CN114994826A (en) | 2022-05-26 | 2022-05-26 | Light guide element and USB interface light-emitting structure thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
CN114994826A true CN114994826A (en) | 2022-09-02 |
Family
ID=83029413
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202210582459.1A Pending CN114994826A (en) | 2022-05-26 | 2022-05-26 | Light guide element and USB interface light-emitting structure thereof |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN114994826A (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001067919A (en) * | 1999-08-30 | 2001-03-16 | Citizen Electronics Co Ltd | Planar light source unit |
CN1831634A (en) * | 2005-03-08 | 2006-09-13 | 三星电子株式会社 | Lighting unit and projection type image display device using same |
CN113324229A (en) * | 2021-06-22 | 2021-08-31 | 科博达技术股份有限公司 | Light guide element and lighting decoration device thereof |
CN214840605U (en) * | 2021-06-28 | 2021-11-23 | 安波福中央电气(上海)有限公司 | Bifurcated multi-port light guide and light path system |
CN214948790U (en) * | 2021-03-19 | 2021-11-30 | 浙江金业汽车部件有限公司 | Signal lamp condenser with separated light emitting surfaces |
-
2022
- 2022-05-26 CN CN202210582459.1A patent/CN114994826A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001067919A (en) * | 1999-08-30 | 2001-03-16 | Citizen Electronics Co Ltd | Planar light source unit |
CN1831634A (en) * | 2005-03-08 | 2006-09-13 | 三星电子株式会社 | Lighting unit and projection type image display device using same |
CN214948790U (en) * | 2021-03-19 | 2021-11-30 | 浙江金业汽车部件有限公司 | Signal lamp condenser with separated light emitting surfaces |
CN113324229A (en) * | 2021-06-22 | 2021-08-31 | 科博达技术股份有限公司 | Light guide element and lighting decoration device thereof |
CN214840605U (en) * | 2021-06-28 | 2021-11-23 | 安波福中央电气(上海)有限公司 | Bifurcated multi-port light guide and light path system |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7560745B2 (en) | LED package and backlight assembly for LCD comprising the same | |
CN100421000C (en) | Backlight unit and liquid crystal display using the backlight unit | |
WO2007123180A1 (en) | Diffuser plate and planar light source apparatus | |
CN101191905A (en) | Light bar, backlight module and display using the same | |
JPH10507306A (en) | Irradiation system using multi-sided micro prism array | |
TW200409974A (en) | Light guide plate and plane light source using the same | |
CN204494198U (en) | Light source module and light guide plate | |
CN108873120B (en) | Reflective lens for backlight module | |
EP2015127A1 (en) | Light emitting diode with a beam shaping device for backlighting a display or a dashboard | |
TWI331666B (en) | Light source apparatus | |
JP4173313B2 (en) | Backlight device and backlight generation method | |
TW201414957A (en) | Illumination device | |
JP2006164625A (en) | Luminaire and display device provided with it | |
CN114994826A (en) | Light guide element and USB interface light-emitting structure thereof | |
TW201122576A (en) | Light guide plate and backlight module | |
CN217467239U (en) | Light guide element and USB interface light-emitting structure thereof | |
CN116736580A (en) | Backlight module and preparation method thereof, display device and backlight control method thereof | |
CN215335837U (en) | Lighting device | |
CN215929472U (en) | Lens and lamp | |
TWI407162B (en) | Light guide plate and backlight module | |
CN212379601U (en) | Light guide plate with good uniformity | |
CN108562969B (en) | Square lamp with high luminous efficiency | |
CN108427158B (en) | Annular light guide plate | |
JP2012174445A (en) | Light guide member and light emitting device with the same | |
JP2003141920A (en) | Lighting unit |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination |