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TW201227011A - Light guide body - Google Patents

Light guide body Download PDF

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Publication number
TW201227011A
TW201227011A TW99144646A TW99144646A TW201227011A TW 201227011 A TW201227011 A TW 201227011A TW 99144646 A TW99144646 A TW 99144646A TW 99144646 A TW99144646 A TW 99144646A TW 201227011 A TW201227011 A TW 201227011A
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TW
Taiwan
Prior art keywords
light
light guide
dot
average
guide body
Prior art date
Application number
TW99144646A
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Chinese (zh)
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TWI459060B (en
Inventor
Yu-Se Liu
Yi-Lung Lin
Yu-Te Lin
Original Assignee
Pegatron Corp
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Priority to TW099144646A priority Critical patent/TWI459060B/en
Publication of TW201227011A publication Critical patent/TW201227011A/en
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Publication of TWI459060B publication Critical patent/TWI459060B/en

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  • Light Guides In General And Applications Therefor (AREA)

Abstract

A light guide body is disclosed. The light guide body includes a light incident surface, a light emitting surface, and a mesh point surface. The light incident surface has an average light incident direction. The light emitting surface has an average light emitting direction. The average light emitting direction is not parallel to the average light incident direction. The mesh point surface has a plurality of mesh points. A projection of the mesh point surface on a standard surface covers the projection of the light emitting surface on the standard surface. The average light emitting direction is the normal vector of the standard surface. The density of the mesh points distributed on the mesh point surface is larger away from a light source.

Description

201227011 • 六、發明說明: 【發明所屬之技術領域】 本發明與導光有關’特別是關於一種導光體,能夠透過 增加其出光面與網點面之間的距離以及亂數分佈其網點之 • 方式,來達成導光均勻及視覺美觀之效果。 【先前技術】201227011 • VI. Description of the Invention: [Technical Field of the Invention] The present invention relates to light guiding. In particular, it relates to a light guiding body capable of increasing the distance between the light emitting surface and the dot surface and distributing the dots thereof by random numbers. The way to achieve the effect of uniform light guide and visual beauty. [Prior Art]

近年來,隨著光學領域之科技不斷進步,市場上已發展 出各種具有不同導光功能的導光元件,可廣泛地應用於不同 領域(例如電子產品、建築裝潢等領域)之需求。 -般而言’傳統的導光元件除了包含必要的導光管(light gmde)之外’射額外加人擴散肢彩色縣片。這是由於傳 統的導光元件通常是網齡佈之方絲達成導光均句之 效果若縣元件並未採用擴散#來均句化光線,當使用者看 =光件時’制者將會直視網點,而無法達到視覺美觀之 汾要。 不為了能夠達到導光均勻之效果,傳統的導光元件 不仟不額外增加擴散片麟置,卻也 變得較為複雜,製糾太㈣船^ 辦九件之名。構 娜^成本亦_增加,嚴重影響其市場競爭 【發明内容】 以解決先前技術所遭遇 因此,本發明提出一種導光體 到之上述種種問題。 201227011 本發明之-範脅在於提出一種 二、出光面及網點面。人光面具有 平均出光方向。平均出光方向與平=出先面具有 具有複數個網點。_面於麵_ ^。網點面 準平面上的投影。基準平面係以==二面於基 網點於嶋上分物度她賴,密ft置。該些 5酿於本發明之—實施例中,網點面至出光面的間距大於 度,==體 =積,的⑽ 於本發明之—實施例中,該些網點的大小相同。 度:其本二:實:關r 度:其本離發二實:為= 與入光面量^例中’入光面為平面,平均入光方向 與該編㈣,料出光方向 於本發明之-實施例中,出光面係經霧面處理。 出^f先前技術,本發明所提出之導光體係透過增加其 網點面之間的距離、亂數分佈其網點及加大入光 不僅能夠達成導光均勻及視覺美觀之效果,亦可 a導光體之結構,以提升其市場競爭力。 4 201227011 藉由以下的發明詳述及 關於本發明之優點與精神可以 所附圖式得到進一步的瞭解。 【實施方式】 本發明係揭露-種導光體。該導 光面與網_之_轉以及亂數過增加其出In recent years, with the continuous advancement of technology in the field of optics, various light guiding elements with different light guiding functions have been developed on the market, which can be widely applied to various fields (such as electronic products, architectural decoration and the like). In general, the traditional light-guiding elements, in addition to the necessary light gmde, are used to produce extra-diffuse limb color county films. This is because the traditional light guiding element is usually the effect of the square wire of the net age cloth to achieve the effect of the light guiding sentence. If the county component does not use the diffusion # to smooth the light, when the user sees the light, the maker will Looking directly at the outlets, it is impossible to achieve the visual beauty. In order not to achieve the effect of uniform light guiding, the traditional light guiding elements do not add extra diffuser, but they also become more complicated, and the system is called the name of the four pieces. The cost is also increased, which seriously affects its market competition. SUMMARY OF THE INVENTION In order to solve the problems encountered in the prior art, the present invention proposes a light guide to the above problems. 201227011 The present invention is directed to a second light exiting surface and a halftone dot surface. The human face has an average light direction. The average light-emitting direction and the flat-out surface have a plurality of dots. _ face to face _ ^. The projection of the dot surface on the quasi plane. The datum plane is divided by == two sides on the base point. In the embodiment of the invention, the spacing of the dots to the light exiting surface is greater than the degree, == body = product, and (10) in the embodiment of the invention, the dots are the same size. Degree: its second: real: off r degree: its original departure from the two: for = with the amount of light into the surface ^ in the case of the entrance into the plane is the plane, the average light direction and the series (four), the material light direction in this In an embodiment of the invention, the illuminating surface is matte treated. According to the prior art, the light guiding system proposed by the present invention can not only achieve the effect of uniform light guiding and visual appearance by increasing the distance between the dot faces, distributing the dots of the random number and increasing the light entering, but also guiding the light. The structure of the light body to enhance its market competitiveness. 4 201227011 Further understanding of the drawings can be obtained by the following detailed description of the invention and the advantages and spirit of the invention. [Embodiment] The present invention discloses a light guide. The light guide surface and the network _ turn and the number of chaos increases

成導光均勻及視覺美觀之絲,方式’來達 成本並簡化導光體之結構。藉Μ去額外妙擴散片之 根據本發社-較佳频實_ 導光體為具有導光功能之導光元件,二= 導f體可以由%轉或壓克力(例如聚甲基丙稀 f MPalymethylmethaerylate,PMMA)^ f 所構 以此為限。 一 請參照圖1 ’圖1係綠示此實施例之導光體的示意圖。如 圖1所示,導光體1包含入光面10、出光面12及網點面14。 網點面14具有複數個網點P,並且該些網點p的大小均相同, 但不以此為限。實際上,導光體i之形狀可依照產品實際需求 而定,可以是弧形、直線形或其他不同形狀。 於此實施例中,入光面10及出光面12均為平面,並且 分別具有法向量NI及NO。但實際上入光面1〇及出光面12 亦可以是非平面(例如曲面)’而出光面12可經霧面處理(例如 噴砂或氧化方式)產生霧面效果,但不以此為限。 首先’將就導光體1之入光面10、出光面12與網點面14 之間的相對關係進行說明。 201227011 於此實施例中,導光體丨係透過入光面1〇接收來自光源 (例如發光二極體LED,但不以此為限)的光線,並透過出光面 12將光線射出導光體1外。入光面10具有平均入光方向DI, ,出光面12具有平均出光方向DO,並且平均出光方向D〇與 均入光方向DI彼此不平行。也就是說,出光面12的平均出 光方向DO與入光面1()的平均入光方向以之間所夾的角度不 會剛好是0或180度。需說明的是,入光面10的平均入光方 向^係指將所有射進入光面1〇的光線之不同方向加以平均後 戶于到的平均方向,而出光面12的平均出光方向則是指 出光面12射出的光線之不同方向加以平均後所得至4 » 的十均方向。 —;入光面10的平均入光方向DI與其法向量NI彼此平 Ϊ行ίί光面12的平均出光方向D〇與其法向量N〇彼此 ㈣i t光面1〇的法向4NI與出光面12的法向請 錢财,出光面12的平均蚊方向D〇係與 光方向垂直,亦即出光面12的平均出 90产,偏道止《的平句入光方向DI之間所夾的角度為 但不又以此為限的入光面1〇與出光面12係彼此垂直, 投影涵蓋:光騎示網點面於基準平面上之 設A準平㈤^千面上之投影的示意圖。域所示,假 面12,光方向-為法向量, 準平面S上的投影p〇。上的U PS將會涵蓋出絲12於基 6 201227011 此外,需說明的是,於導光體丨中,若網點面14至出光 面12的間距d;M、,將會祕使用者透過導光體1的出光面 12直視到網點面14上之該些網點p。因此,為了避免上述現 象發生+於實應財’導光體1之網點面14至出光面12的 間距d需大於5mm,才能使得網點® 14上之網點p在使用者 =覺上變得相當不聰。在__較佳實施射,使用者的視線 若是與出光面12的平均丨光方向DQ暇—肖度時(較佳為45 度角),使用者骑看職些娜P,藉以達龍覺美觀之效果。Uniform and visually pleasing silk, the way to cost and simplify the structure of the light guide. According to the present invention, the light-transmitting body is a light guiding element having a light guiding function, and the second body is made of % or acrylic (for example, polymethyl propyl). The thin f MPalymethylmethaerylate, PMMA)^ f is limited to this. 1 is a schematic view showing the light guide of this embodiment. As shown in Fig. 1, the light guide 1 includes a light incident surface 10, a light exit surface 12, and a halftone dot surface 14. The dot surface 14 has a plurality of dots P, and the sizes of the dots p are the same, but are not limited thereto. In fact, the shape of the light guiding body i may be determined according to the actual needs of the product, and may be curved, linear or other different shapes. In this embodiment, the light incident surface 10 and the light exit surface 12 are both planar and have normal vectors NI and NO, respectively. However, in fact, the light-incident surface 1 and the light-emitting surface 12 may be non-planar (for example, curved surface), and the light-emitting surface 12 may be matte-treated (for example, sandblasting or oxidizing) to produce a matte effect, but not limited thereto. First, the relative relationship between the light incident surface 10 of the light guide body 1, the light exit surface 12, and the halftone dot surface 14 will be described. In this embodiment, the light guide body receives the light from the light source (for example, the LED of the LED, but not limited thereto) through the light incident surface, and emits the light through the light exit surface 12 to emit the light guide. 1 outside. The light incident surface 10 has an average light incident direction DI, and the light exit surface 12 has an average light exiting direction DO, and the average light exiting direction D〇 and the uniform light incident direction DI are not parallel to each other. That is to say, the angle between the average light exiting direction DO of the light exiting surface 12 and the average light incident direction of the light incident surface 1 () is not exactly 0 or 180 degrees. It should be noted that the average light incident direction of the light incident surface 10 refers to the average direction in which all the light rays entering the light surface 1 平均 are averaged, and the average light exit direction of the light exit surface 12 is It is pointed out that the different directions of the light emitted by the smooth surface 12 are averaged to obtain a ten-order direction of 4». - The average light incident direction DI of the light incident surface 10 and its normal vector NI are parallel to each other. ί The average light exit direction D of the smooth surface 12 and its normal vector N 〇 mutually (4) i t smooth surface 1 〇 normal 4NI and light exit surface 12 The law of the law invites money, the average mosquito direction of the light surface 12 is perpendicular to the light direction, that is, the average output of the light-emitting surface 12 is 90, and the angle between the light-input direction DI of the flat sentence is off. The entrance surface 1〇 and the light-emitting surface 12 are perpendicular to each other, and the projection covers: a schematic diagram of the projection of the light on the reference plane on the reference plane (5). As shown in the field, the plane 12, the light direction - is the normal vector, and the projection p 准 on the quasi-plane S. The U PS will cover the wire 12 on the base 6 201227011. In addition, in the light guide body, if the distance between the mesh surface 14 and the light-emitting surface 12 is d; M, the user will pass through the guide. The light exiting surface 12 of the light body 1 is directly viewed by the dots p on the halftone dot surface 14. Therefore, in order to avoid the above phenomenon, the spacing d of the mesh surface 14 to the light-emitting surface 12 of the light-guiding body 1 needs to be greater than 5 mm, so that the dot p on the dot® 14 becomes quite equal to the user. Not smart. In the __ preferred shooting, if the user's line of sight is the same as the average light-emitting direction DQ 暇 肖 暇 (better angle of 45 degrees), the user rides a job to see some of the Na P, by virtue of Da Longjue Beautiful effect.

接著,將就該些網點P製作於網點面14上的分佈 行詳細說明。 於此實施例中’該些網點p可採用印刷、模仁綱或模仁 雷射等方式製作於導光體丨_點面14上。至於該些網點p 的分佈圖樣及形狀大小則可視不同導紐丨之實際需求而 定’並無特定之限制。 ’ 需說明的是,本發明之導光體i的―項重要特徵在於:在 導,體1中,該些網點P於網點面14上分佈之密度為離光源 愈退,密度愈大。由於光源所發出的光線係由人光面10進入 導光體1中,故實質上該些網點!>於網點面14上分佈之密度 為離入光面10愈遠,密度愈大。 又 δ月參照圖3 ’圖3係綠示藉由發光二極體兩側入光之導光 體的前視®。如® 3所示,自出光面22往_面%的方向望 去,導光體2的兩側XI及χ2分別設置有發光二極體Lmi 及LED2,並且導光體2之入光面2〇的寬度%大於出光面 22的寬度W2,亦即入光面20於前述基準平面s上的投影與 出光面22於前述基料面S上的投影她,前者的寬度wj 201227011 大於後者的寬度W2,藉以增加導光體2之受光面積。至於網 點面24則係位於出光面22後方處。以一較佳實施例來說,網 點面24上設置有該些網點p,至於該些網點p的分佈密度如 前文所述,另外該些網點P的分佈範圍則可僅分佈於相對應出 光面22的位置上,或是整個網點面24’並不以任一方式為限。 另外,如圖3所示,入光面20於前述基準平面s上的投 影與出光面22於前述基準平面S上的投影間具有—差= d,,若在設計上增加d’ ,則可減少當發光二極體LED1及 LED2自兩邊的入光面20進光,並由出光面22出光時,使用 者觀察到兩端過党的情形。 由於網點面上的網點分佈密度為離光源愈遠,密度愈大, 且導光體2的兩側XI及X2處均設置有光源,因此,^點面 24上位於導光體2兩侧χι及χ2的網點分佈密度應為最㈣ 度值,而網點面24上位於導光體2兩側之中央處Xc的網點 刀佈猎度應為最大密度值。也就是說,網點面24上的網點八 佈密度係由位於導光體2兩側之中央處Xc的最大密度值分: 向兩侧遞減至位於導光體2兩側XI及X2的最小密度值。 4人是,只要導光體之網點面上的網點分佈密度能夠 符S離切、愈遠’密度愈大之顧,其實每個_分佈的位置 的限制,甚至可以採取亂數分佈之方式來配置每個網 點分佈的位置。 八你紐實施射,導光體之嶋面上麟麵點可以僅 ΐ減出光面下方的位置,藉以增加更多的出光量,故 了減1的浪費。 於實際應财,圖3中之_面24上_點分佈密度與 201227011 該些網點離光__之_對應_可以是線性關係, 以是非線性關係。請參照圖4A及圖4B,圖4A係綠示圖 之網點分佈密度與該些賴離辆_離之間具有線 係;圖4B係繚示圖3中之網點分佈密度與該些網點離光 距離之間具有非線性關係。 如圖4A所示,網點面24上的網點分佈密度D係以線性 方式由位於導光體2 _之巾央處Xe的最大密度值Dc分 向兩側遞減至位於導光體2 _ χι & χ2的最#Next, the distribution lines on the halftone dots 14 of the dots P will be described in detail. In this embodiment, the dots p may be formed on the light guide 丨_point 14 by means of printing, mold core or mold laser. As for the distribution pattern and shape of these outlets p, it can be determined by the actual needs of different guides. There is no specific limit. It should be noted that the important feature of the light guiding body i of the present invention is that in the body 1, the density of the dots P on the halftone dot surface 14 is more and more distant from the light source, and the density is larger. Since the light emitted from the light source enters the light guide 1 from the human light surface 10, the density of the dots is substantially distributed on the halftone surface 14 and the density is greater as it is farther from the light surface 10. Further, δ month refers to Fig. 3'. Fig. 3 is a front view of the light guide body through which light is incident on both sides of the light-emitting diode. As shown in FIG. 3, the light-emitting surface 22 is disposed in the direction of the _ plane %, and the two sides XI and χ 2 of the light guide body 2 are respectively provided with the light-emitting diodes Lmi and LED2, and the light-input surface 2 of the light guide body 2 The width % of the 〇 is larger than the width W2 of the light-emitting surface 22, that is, the projection of the light-incident surface 20 on the reference plane s and the projection of the light-emitting surface 22 on the base surface S. The width wj 201227011 of the former is larger than the width of the latter. W2, thereby increasing the light receiving area of the light guide 2. As for the dot surface 24, it is located behind the light exit surface 22. In a preferred embodiment, the dot points p are disposed on the dot surface 24, and the distribution densities of the dots p are as described above, and the distribution ranges of the dots P may be distributed only on the corresponding light emitting surface. The position of 22, or the entire dot 24' is not limited to either method. In addition, as shown in FIG. 3, the projection of the light incident surface 20 on the reference plane s and the projection of the light exit surface 22 on the reference plane S have a difference of d, and if d' is added to the design, When the light-emitting diodes LED1 and LED2 enter the light from the light-incident surface 20 on both sides, and the light exits from the light-emitting surface 22, the user observes that both ends pass the party. Since the distribution density of the dots on the dot surface is farther from the light source, the density is larger, and the light source 2 is provided with light sources on both sides XI and X2. Therefore, the spot surface 24 is located on both sides of the light guide body 2 The distribution density of the dots of χ2 should be the maximum (four) degree value, and the dot knives of Xc at the center of the two sides of the light guide body 2 on the halftone face 24 should be the maximum density value. That is to say, the density of the dots on the halftone dots 24 is determined by the maximum density value of Xc located at the center of both sides of the light guide body 2: decreasing to both sides to the minimum density of XI and X2 on both sides of the light guide body 2. value. 4 people, as long as the distribution density of the dots on the mesh surface of the light guide can be S cut away, the farther the density is greater, in fact, the limit of the position of each _ distribution can even take the form of random distribution Configure the location of each dot distribution. When you shoot it, the face of the light guide can only reduce the position below the light surface, so as to increase the amount of light, so the waste of 1 is reduced. In the actual accounting, the distribution density of the _ point on the surface of Figure 3 and 201227011. The corresponding points of the network points from the light __ may be a linear relationship, so as to be a nonlinear relationship. Referring to FIG. 4A and FIG. 4B , FIG. 4A shows a line distribution density of the green diagram and a line between the plurality of vehicles, and FIG. 4B shows a distribution density of the dots in FIG. 3 and the dots are separated from the light. There is a nonlinear relationship between distances. As shown in FIG. 4A, the dot distribution density D on the halftone dot surface 24 is linearly reduced from the maximum density value Dc located at the center of the light guide body 2 to the light guide body 2 _ χι &amp ; χ2's most #

及 D2。 X i 如圖4B所示,網點面24上的網點分佈密度D係 性方式由位於導光體2兩側之中央處Xc的最大密度值Dc分 別向兩侧遞減至位於導光體2兩側χι及χ2的最小密度值m 及D2。實際上’所謂的非線性方式可以是採用最小平方法產 生之曲線’但不以此為限。 於實際應用巾’導紐並不—定要採用如關3所示之 雙側入光方式’亦可能_單獻光方式(例如糊3中的發 光二極體LED2移除)’此時,_面上_點分佈密度與該 些網點離光源的距離之間的對應關係即會變為圖5A或圖5B 所示的情形,其帽5A係繪示單側人光之導光體的網點分佈 密,與該些網點離光源的距離之間具有線性關係,圖诏係繪 示單侧入光之導光體的網點分佈密度與該些網點離光源的距 離之間具有非線性關係。 如圖5A所示,網點分佈密度D係以線性方式由位於導 光體入光側XI的最小密度值m,遞增至導光體非入光側X2 的最大雄度值D2。如圖5B所示,網點分佈密度D係以非 201227011 線性(例如曲線)方式由位於導光體入光侧χι的最小密度值 D1’遞增至導光體非入光側χ2的最大密度值D2,。 “相杈於先前技術,本發明所提出之導光體係透過增加其 ,光面與網點面之間的距離、亂數分佈其網點及加大入光面 等方式,來達成導光均勻及視覺美觀之效果,故可省去導光 體額外設置擴散片之成本’以提升其市場競爭力。 、藉由以上較佳具體實施例之詳述,係希望能更加清楚描 ,本發明之特徵與精神,而並非以上述所揭露的較佳具體實 施例來對本發明之齡加罐制。減地,其目的是希望能 ^蓋各種改變及具相等性的安排於本發明所欲中請之專利 乾圍的範疇内。 【圖式簡單說明】 圖1係繪示本發明之-較佳具體實施例之導光體的示意 圓。 圖2係繪稍點面於鱗平社之投蓋出光面 準平面上之投影的示意圖。 圖3係緣示藉由發光二極體兩侧入光之導光體的前視圖。 鐘圖4Α係繪不圖3中之網點分佈密度與該些網點離光源的 距綠之間具有線性關係。 辟雜圖4β係繪不圖31^之網點分佈密度與該些網點離光源的 距離之間具有非線性關係。 圖5Α係繪不單侧入光之導光體的網點分佈密度與該些網 201227011 點離光源的距離之間具有線性關係。 圖SB係繪示單側入光之導光體的網點分佈密度與該些網 點離光源的距離之間具有非線性關係。And D2. As shown in FIG. 4B, the D-system of the dot distribution density on the halftone dot surface 24 is reduced to the both sides of the light guide body 2 by the maximum density value Dc of the Xc located at the center of both sides of the light guide body 2, respectively. The minimum density values m and D2 of χι and χ2. In fact, the so-called non-linear method can be a curve produced by the least squares method, but is not limited thereto. In the actual application of the towel, the guide button does not have to use the double-side light-in method as shown in Guan 3, and it is also possible to use a single-light mode (for example, the light-emitting diode LED 2 in the paste 3 is removed). The correspondence between the _surface _ point distribution density and the distance of the mesh points from the light source will become the situation shown in FIG. 5A or FIG. 5B, and the cap 5A is a dot showing the light guide of the unilateral human light. The distribution is dense, and there is a linear relationship between the distances of the mesh points and the light source. The figure shows that the distribution density of the light guides of the light entering the light side has a nonlinear relationship with the distance between the mesh points and the light source. As shown in Fig. 5A, the dot distribution density D is linearly increased from the minimum density value m located on the light incident side XI of the light guide to the maximum male value D2 of the light guide non-light incident side X2. As shown in FIG. 5B, the dot distribution density D is increased from the minimum density value D1' located on the light incident side of the light guide to the maximum density value D2 of the light guide non-light incident side χ2 in a non-201227011 linear (eg, curved) manner. ,. "In contrast to the prior art, the light guiding system proposed by the present invention achieves light guiding uniformity and vision by increasing the distance between the smooth surface and the dot surface, distributing the dots and increasing the light entering the surface. The effect of the appearance is omitted, so that the cost of additionally providing the diffuser for the light guide can be omitted to enhance its market competitiveness. With the detailed description of the above preferred embodiments, it is hoped that the features of the present invention can be more clearly described. Spirit, and not in the preferred embodiment disclosed above, the age of the present invention is added to the can. The purpose of the reduction is to hope that the various modifications and equivalent arrangements can be made in the present invention. BRIEF DESCRIPTION OF THE DRAWINGS [Brief Description of the Drawings] Fig. 1 is a schematic view of a light guide body of a preferred embodiment of the present invention. Fig. 2 is a schematic view of a flat surface of a scaled surface. Schematic diagram of the projection on the quasi-plane. Figure 3 is a front view of the light guide body through the light-emitting diodes on both sides of the light-emitting diode. The clock map is not shown in Figure 3, and the distribution density of the dots is separated from the light source. There is a linear relationship between the green and the green. The 4β system does not have a non-linear relationship between the distribution density of the dot points and the distance between the dots and the light source. Figure 5 shows the distribution density of the light guides of the light sources that are not single-sided into the light and the grids of the grids 201227011 There is a linear relationship between the distances. Figure SB shows a non-linear relationship between the dot distribution density of the light guides with one side light entering and the distance of the mesh points from the light source.

【主要元件符號說明】 1,2 :導光體 10, 20 :入光面 12,22 .出光面 14, 24 :網點面 P :網點 Νι:入光面法向量 NO:出光面法向量 DI :平均入光方向 DO :平均出光方向 s:基準平面 W1 :入光面的寬度 W2 :出光面的寬度 PS :網點面於基準平面上的投影 PO:出光面於基準平面上的投影 d·網點面至出光面的間距 X1,X2 :導光體的兩側 Xc :導光體兩側之中央處 LED1,LED2 :發光二極彳 體 D,D1,D2,Dc,D1’,D2,: 網點分佈密度[Description of main component symbols] 1,2: Light guide body 10, 20: light entrance surface 12, 22. Light exit surface 14, 24: dot surface P: dot dot :: light surface normal vector NO: light surface normal vector DI: Average light incident direction DO: average light exit direction s: reference plane W1: width of the light incident surface W2: width of the light exit surface PS: projection of the dot surface on the reference plane PO: projection of the light exit surface on the reference plane d dot dot surface Distance to the light-emitting surface X1, X2: Xc on both sides of the light guide: LED1 at the center of both sides of the light guide, LED2: Light-emitting diodes D, D1, D2, Dc, D1', D2,: Distribution of dots density

Claims (1)

201227011 七、申請專利範圍: 1. 一種導光體,包含: 一入光面,其具有一平均入光方向; -出光面’其具有—平均出光方向,該平均出光方向與該 平均入光方向不平行;以及 -網點面,其具有複數個_,且細點面於—基準平面 上的投影涵蓋該出光面於該基準平面上的投影該基準 平面係以該平均出光方向為法向量; 其中’該些網點於該網點面上分佈之密度為離一光源愈遠 度愈大。 Ο Z如申請專利範圍第!項所述之導光體,其中該網點面至該出光 面的間距大於5mm。 3.如申請專利範圍第i項所述之導光體,其中該入光面的寬度大 於該出光面的寬度。 又 4·如申請專利範圍帛i項所述之導光體,其中該些網點的大小相 同0 5. 如申請專利範圍第!項所述之導光體,其中該些網點於該網點❶ 面上分佈之密度與該些網點離該光源的距離呈一線性關係。 6. 如申請專利範圍第!項所述之導光體,其中該些網點於該網點 面上分佈之密度與該些網點離該光源的距離呈一非線性關係。 7. 如申請專利範圍第1項所述之導光體,其中該入光面為平面。 8. 如申請專利範圍第7項所述之導光體,其中該平均入光方向與 該入光面的法向量平行。 9. 如申請專利範圍第!項所述之導光體,其中該出光面為平面。 12 201227011 10. 如申請專利範圍第9項所述之導光體,其中該平均出光方向與 該出光面的法向量平行。 11. 如申請專利範圍第1項所述之導光體,其中該出光面係經霧面 處理。201227011 VII. Patent application scope: 1. A light guide body comprising: a light incident surface having an average light incident direction; - a light exit surface having an average light exiting direction, the average light exiting direction and the average light incident direction a non-parallel; and a dot surface having a plurality of _, and the projection of the fine point on the reference plane covers the projection of the illuminating surface on the reference plane, the reference plane is the normal light direction as a normal vector; The density of the dots distributed on the dot surface is greater the distance from a light source. Ο Z If you apply for a patent range! The light guide body of the item, wherein a spacing of the dot surface to the light exiting surface is greater than 5 mm. 3. The light guide of claim i, wherein the width of the light incident surface is greater than the width of the light exit surface. 4) The light guide body described in the scope of patent application 帛i, wherein the sizes of the dots are the same as 0. 5. For the scope of patent application! The light guide body, wherein the density of the dots distributed on the surface of the dot is linear with the distance of the dots from the light source. 6. If you apply for a patent scope! The light guide body of the item, wherein the density of the dots distributed on the dot surface is in a nonlinear relationship with the distance of the mesh points from the light source. 7. The light guide of claim 1, wherein the light incident surface is a flat surface. 8. The light guide of claim 7, wherein the average light incident direction is parallel to a normal vector of the light incident surface. 9. If you apply for a patent scope! The light guide body of the item, wherein the light exiting surface is a plane. The light guide of claim 9, wherein the average light exiting direction is parallel to a normal vector of the light exiting surface. 11. The light guide of claim 1, wherein the light exiting surface is matte treated. 1313
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