TW201300701A

TW201300701A - Lighting module

Info

Publication number: TW201300701A
Application number: TW100123110A
Authority: TW
Inventors: Huang-Chun Liu; Tsung-Yung Hung
Original assignee: Global Lighting Technologies
Priority date: 2011-06-30
Filing date: 2011-06-30
Publication date: 2013-01-01

Abstract

A lighting module includes a plurality of lighting units and a light guide element assemble. The light guide element assemble includes a plurality of light guide elements, each light guide element has a light guide body. The light guide body includes an upper surface, a bottom surface, an effective light emitting area and a light transition area. The bottom surface is opposite to the upper surface. The light transition area is abutted to the effective light emitting area and has a light-incident surface. Wherein, each light guide element is superposed to the adjacent light guide element, the light-incident surface receives a first light emitted from the lighting units and a second light transmitted from the adjacent light guide element. The first light and the second light are mixed in the light transition area and transmitting to the effective light emitting area via a light-propagation surface.

Description

Light source module

本發明係有關於一種導光元件，尤指一種拼接式的導光元件。The invention relates to a light guiding element, in particular to a splicing type light guiding element.

發光二極體具有體積小、壽命長、不易破損、不含汞等優點，已逐漸地取代日光燈與白熾燈泡的地位，使照明領域進入一個新世代的固態照明領域。然而，發光二極體為一種點光源，且從發光二極體出射的光線具有出射角度較小及出射距離較短等缺點，因此在某些需要提供面光源照明的場合，如:顯示裝置，發光二極體便受到限制。Light-emitting diodes have the advantages of small size, long life, not easy to break, and no mercury. They have gradually replaced the status of fluorescent lamps and incandescent bulbs, and the lighting field has entered a new generation of solid-state lighting. However, the light-emitting diode is a point light source, and the light emitted from the light-emitting diode has the disadvantages of a small exit angle and a short exit distance. Therefore, in some occasions where surface light source illumination is required, such as a display device, The light-emitting diode is limited.

為使得發光二極體可以被應用於一面光源照明，導光板成為不可或缺的元件。導光板主要使用透光材質製成，可有效的引導由該發光二極體入射之光線。該發光二極體係由該導光板之一入光面入射光線，該光線經由全內反射而由該入光面傳遞至一相對於該入光面之後端面。並且，該導光板之至少一板面係設置有複數個導光粒子，當光線投射置該導光粒子時，該等導光粒子係破壞光線之全內反射，以將光線由該導光板相對設置有該等導光粒子之一板面導出，產生一均勻出光亮度之面光源輸出。In order to enable the light-emitting diode to be applied to one side of the light source, the light guide plate becomes an indispensable component. The light guide plate is mainly made of a light-transmitting material, and can effectively guide the light incident from the light-emitting diode. The light-emitting diode system receives light from a light incident surface of the light guide plate, and the light is transmitted from the light incident surface to an end surface opposite to the light incident surface via total internal reflection. Moreover, at least one surface of the light guide plate is provided with a plurality of light guiding particles, and when the light guides the light guiding particles, the light guiding particles destroy the total internal reflection of the light, so that the light is opposite to the light guide plate. A plate surface of one of the light guiding particles is provided to generate a surface light source output with uniform brightness.

但是，由於顯示裝置的尺寸逐漸加大，單一個導光板的大小已無法有效地涵蓋整個顯示裝置所需之出光範圍，且使得該顯示裝置無法提供足夠的光源輸出。However, as the size of the display device is gradually increased, the size of a single light guide plate cannot effectively cover the light exit range required for the entire display device, and the display device cannot provide sufficient light source output.

鑒於先前技術所述，本發明之一目的，在於提供一種光源模組。In view of the prior art, it is an object of the present invention to provide a light source module.

為達上述目的，本發明提供一種光源模組，該光源模組包含複數個發光單元及一導光元件組合，該導光元件組合包含複數個導光元件，各該導光元件具有一導光本體，該導光本體包含一上表面、一下表面、一有效出光區域及一光過渡區域。該下表面相對於該上表面；該光過渡區域鄰接於該有效出光區域，該光過渡區域具有一入光面，該入光面鄰接於該上表面及該下表面；其中，各該導光元件疊置於鄰近的導光元件，使得相鄰的兩導光元件之上表面位於同一水平面，該入光面接收由該等發光單元出射的一第一光線以及相鄰的導光元件傳遞的一第二光線，該第一光線及該第二光線係於該光過渡區域混光後由一光傳遞面傳遞至該有效出光區域。In order to achieve the above object, the present invention provides a light source module, the light source module comprising a plurality of light emitting units and a light guiding component combination, the light guiding component combination comprising a plurality of light guiding components, each of the light guiding components having a light guiding The body, the light guiding body comprises an upper surface, a lower surface, an effective light emitting region and a light transition region. The lower surface is opposite to the upper surface; the light transition region is adjacent to the effective light exiting region, the light transition region has a light incident surface, the light incident surface is adjacent to the upper surface and the lower surface; wherein each of the light guides The components are stacked on the adjacent light guiding elements such that the upper surfaces of the adjacent two light guiding elements are located at the same horizontal plane, and the light incident surface receives a first light emitted by the light emitting units and the adjacent light guiding elements a second light, the first light and the second light are transmitted to the effective light exiting region by a light transmitting surface after the light transition region is mixed.

根據本發明的一具體實施例，其中各該導光本體更包含有一後端面，相對於該入光面。According to an embodiment of the invention, each of the light guiding bodies further comprises a rear end surface opposite to the light incident surface.

根據本發明的一具體實施例，其中各該導光元件更包含一第一凹槽，設置於該上表面與該入光面的交接處。According to an embodiment of the invention, each of the light guiding elements further includes a first recess disposed at an intersection of the upper surface and the light incident surface.

根據本發明的一具體實施例，其中該下表面係隨著遠離於該入光面而朝該上表面的方向接近。According to an embodiment of the invention, the lower surface is approached in a direction away from the light incident surface toward the upper surface.

根據本發明的一具體實施例，其中各該導光元件更包含一第二凹槽，設置於該下表面與該後端面的交接處。According to an embodiment of the invention, each of the light guiding elements further comprises a second groove disposed at an intersection of the lower surface and the rear end surface.

根據本發明的一具體實施例，其中該底表面於對應該有效出光區域處設置有複數個導光粒子。According to a specific embodiment of the present invention, the bottom surface is provided with a plurality of light guiding particles at a region corresponding to the effective light exiting region.

根據本發明的一具體實施例，其中該等導光粒子的設置密度係與其設置位置所接受的光強度成反比。According to a specific embodiment of the invention, the set density of the light guiding particles is inversely proportional to the intensity of light received by the set position.

根據本發明的一具體實施例，其中該等導光粒子的設置深度係與其設置位置所接受的光強度成反比。According to a specific embodiment of the invention, the depth of the light guiding particles is inversely proportional to the intensity of the light received by the set position.

根據本發明的一具體實施例，其中該光傳遞面的形狀與該入光面的形狀相同。According to an embodiment of the invention, the shape of the light transmitting surface is the same as the shape of the light incident surface.

根據本發明的一具體實施例，其中該光傳遞面位於該有效出光區域與該光過渡區域之間。According to a specific embodiment of the invention, the light transmitting surface is located between the effective light exiting region and the light transition region.

本發明之該導光元件組合係透過該光過渡區域以將由該等發光單元出射的光線及相鄰的導光元件所傳遞之光線於光過渡區域進行混光，再經由該光傳遞面傳遞至該有效出光區域，以使該導光元件組合之出光均勻度提升。The light guiding element combination of the present invention transmits the light transmitted by the light emitting units and the light transmitted by the adjacent light guiding elements in the light transition region through the light transition region, and then transmits the light to the light transition region through the light transmitting surface. The effective light-emitting area is such that the light uniformity of the light guiding element combination is improved.

配合參閱第一圖及第二圖，分別為本發明第一實施例之光源模組之立體圖及剖視圖。該光源模組10包含複數個發光單元12及一導光元件組合14，各該發光單元12係用以提供該光源模組10所需之一光源提供，該導光元件組合14係用以引導由該發光單元12所提供之光線，並將其轉換為一面光源。
該等發光單元12係朝向該導光元件組合14出射光線，且於本實施例中，該等發光單元12可以為發光二極體，且更佳地，該等發光單元12係可以為側射型(edge-type)的發光二極體，以集中的朝向該導光元件組合14出射光線，避免光線由非必要的方位出光，進而提升整體光源模組10的光使用效率。
該導光元件組合14包含複數個導光元件140，各該導光元件140具有一導光本體142，該導光本體142包含一上表面144、一下表面146、一後端面149、一有效出光區域150及一光過渡區域160。該下表面146相對於該上表面144，該後端面149鄰接於該上表面144及該下表面146。
該有效出光區域150係指入射至該導光元件140的光線得以均勻出光的區域，該光過渡區域160係指該導光元件140接收該發光單元12的入射光線及相鄰的導光元件140傳遞的光線並混合前述二光線的區域。該有效出光區域150及該光過渡區域160之間有一光傳遞面170，該光傳遞面170為一位於該有效出光區域150及該光過渡區域160之間的介面。
各該導光元件140係使用透光材質，如: 聚甲基丙烯酸甲脂(PMMA)、合成樹脂、丙烯(acryl)、聚碳酸酯(PC)、聚酯(PET)、聚烯烴(Polyolefines)或玻璃，以射出成型、蝕刻、熱壓成型或裁切加工等方式製作而成之板塊。
該光過渡區域160鄰接於該有效出光區域150，該光過渡區域160具有一入光面162，於本實施例中，該下表面146係隨著遠離於該入光面162而逐漸地朝該上表面144的方向接近，並連接於該後端面149，使該導光本體142呈楔(wedge)型。其中該入光面162可以為矩形、圓形或其他多邊形，該光傳遞面170可以為矩形、圓形或其他多邊形，並且，該光傳遞面170的形狀及該入光面162的形狀可以為相同的，或者，該光傳遞面170的形狀及該入光面162之形狀可以為不相同的；其中該光傳遞面170的形狀與該入光面162的形狀相同可以提高光線的傳遞效率。
此外，各該導光本體142更包含有一第一凹槽145，設置於該上表面144與該入光面162的交接處，以供相鄰的導光元件140疊置於其上。於實際組接該導光元件組合14時，各該導光元件140具有該後端面149之一側係疊置於相鄰的導光元件140之該第一凹槽145，並且使該等導光元件140的上表面144皆位於相同的一水平面，以形成一大型的出光區域，藉以將由該等發光單元12入射於該導光元件140之光線以一面光源形式出光。
該入光面162接收由該等發光單元12出射的一第一光線以及疊置於該導光元件140之相鄰的導光元件140傳遞的一第二光線，該第一光線及該第二光線於該光過渡區域160內進行混光，混光後之該第一光線及該第二光線係由該光傳遞面170傳遞至該有效出光區域150。
該下表面146係於對應該有效出光區域150處設置有複數個導光粒子154，該等導光粒子154之設置密度係與其設置位置所接受到的光強度成反比，其中光線於該有效出光區域150的光強度分佈係與該光傳遞面170之間的距離(光傳遞距離)成反比，亦即光傳遞距離愈短，其光強度愈強，而光傳遞距離愈遠，則光強度愈弱。該等導光粒子154的設置密度與其設置位置所接受到的光強度成反比，換言之，在接受到的光強度愈大的位置，其導光粒子154的設置密度相對的愈小，而在接受到光強度愈小的位置，其導光粒子154的設置密度相對的愈大。又，該等導光粒子154之設置深度係與其設置位置所接受到的光強度成反比，其中該設置深度係指各該導光粒子154朝向該上表面144方向凹設的距離。如此，以有效的將光線均勻地分佈於該有效出光區域150，而提供一均勻光亮度的面型光源。
於實際應用時，該光過渡區域160之該入光面162係接收由該等發光單元12出射的該第一光線及由相鄰的導光元件140傳遞的該第二光線，該第一光線與該第二光線係於該光過渡區域160內混光後，再經由至該光傳遞面170傳遞至該有效出光區域150。當光線經由該光傳遞面170傳遞至該有效出光區域150，設置於該有效出光區域150之該等導光粒子154係散射該等光線，致使光線均勻的於該有效出光區域150傳遞，進而使該導光元件140均勻光亮度的出光。
配合參閱第三圖及第四圖，分別為本發明第二實施例之光源模組之立體圖及剖視圖。該光源模組20包含複數個發光單元22及一導光元件組合24，該等發光單元22係用以提供該光源模組20所需之一光源提供，該導光元件組合24係用以引導由該等發光單元22所提供之光線，並將其轉換為一面光源輸出。

該等發光單元22係朝向該導光元件組合24出射光線，且於本實施例中，該等發光單元22係可以為側射型的發光二極體，以集中的朝向該導光元件組合24出射光線，避免光線由不必要的方位出光，進而提升該光源模組20的整體光使用效率。
該導光元件組合24包含複數個導光元件240，各該導光元件240具有一導光本體242，該導光本體242包含一上表面244、一下表面246、一後端面249、一有效出光區域250及一光過渡區域260。該下表面246相對於該上表面244，該後端面249鄰接於該上表面244及該下表面246。
該有效出光區域250係指入射至該導光元件240的光線得以均勻出光的區域；該光過渡區域260係指該導光元件240接收該發光單元22入射的光線及相鄰的導光元件240傳遞的光線並混合前述二光線的區域。該有效出光區域250及該光過渡區域260之間有一光傳遞面270，該光傳遞面270為一位於該有效出光區域250及該光過渡區域260之間的介面。
各該導光元件240係使用透光材質，如: 聚甲基丙烯酸甲脂、合成樹脂、丙烯、聚碳酸酯、聚酯、聚烯烴或玻璃，以射出成型、蝕刻、熱壓成型或裁切加工等方式製作而成之光滑板塊。
該光過渡區域260鄰接於該有效出光區域250，該光過渡區域260具有一入光面262。其中該入光面262可以為圓形、矩形或多邊形，該光傳遞面270可以為圓形、矩形或多邊形，並且，該光傳遞面270的形狀及該入光面262的形狀可以為相同，或者，該光傳遞面270的形狀及該入光面262的形狀可以為不相同；其中該光傳遞面270的形狀與該入光面262的形狀相同可以提高光線的傳遞效率。
此外，各該導光本體242更包含有一第一凹槽245及一第二凹槽247，該第一凹槽245設置於該上表面244與該入光面262的交接處，該第二凹槽247設置於該下表面246與該後端面249的交接處，使該導光本體242呈階梯狀。
於實際組接該導光元件組合24時，各該導光元件240之該第二凹槽247係疊置於相鄰的導光元件240之該第一凹槽245，使該等導光元件240的上表面244皆位於同一平面上，以形成一大型的出光區域，藉以將由該等發光單元22入射於該導光元件240之光線以一面光源的形式出光。
該入光面262係接收由該等發光單元22出射的一第一光線以及疊置於該導光元件240之相鄰的導光元件240之有效出光區域250傳遞的一第二光線，該第一光線及該第二光線於該光過渡區域260內進行混光，混光後之該第一光線及該第二光線係由該光傳遞面270傳遞至該有效出光區域250。
該下表面246於對應該有效出光區域250處設置有複數個導光粒子254，該等導光粒子254之設置密度係與其設置位置所接受到之光強度成反比，意即在接受到光強度愈大的位置，其導光粒子254的設置密度相對的愈小，而在接受到光強度愈小的位置，其導光粒子254的設置密度相對的愈大。並且，該等導光粒子254的設置深度亦與其設置位置所接受到的光強度成反比。藉由有效地控制該等導光粒子254的設置密度及其設置深度，以有效的將光線均勻地分佈於該有效出光區域250，而提供一均勻光亮度的面型光源。
於實際應用時，該入光面262係接收由該等發光單元22出射的該第一光線及由相鄰的導光元件240之所傳遞的該第二光線，並將該第一光線及該第二光線於該光過渡區域260中均勻混光後，再經由至該光傳遞面270傳遞至該有效出光區域250。設置於該有效出光區域250之該等導光粒子254係散射該等光線，致使光線均勻地於該有效出光區域250傳遞，進而使該導光元件240得以均勻光亮度的發光。
綜合以上所述，本發明之該導光元件組合係透過該光過渡區域以將由該等發光單元出射的該第一光線及由相鄰的導光元件所傳遞的該第二光線於該光過渡區域進行混光，再經由該光傳遞面傳遞至該有效出光區域，以使該導光元件組合之出光均勻度提升。
然以上所述者，僅為本發明之較佳實施例，當不能限定本發明實施之範圍，即凡依本發明申請專利範圍所作之均等變化與修飾等，皆應仍屬本發明之專利涵蓋範圍意圖保護之範疇。
Referring to the first and second figures, respectively, a perspective view and a cross-sectional view of a light source module according to a first embodiment of the present invention. The light source module 10 includes a plurality of light-emitting units 12 and a light-guiding element combination 14 , each of which is provided for providing a light source required by the light source module 10 , and the light-guiding element assembly 14 is used for guiding The light provided by the light-emitting unit 12 is converted into a light source.
The light-emitting units 12 are configured to emit light toward the light-guiding element combination 14, and in the embodiment, the light-emitting units 12 may be light-emitting diodes, and more preferably, the light-emitting units 12 may be side-fired. An edge-type light-emitting diode emits light in a concentrated manner toward the light guiding element combination 14 to prevent light from being emitted from an unnecessary orientation, thereby improving the light use efficiency of the overall light source module 10.
The light guiding element assembly 14 includes a plurality of light guiding elements 140. Each of the light guiding elements 140 has a light guiding body 142. The light guiding body 142 includes an upper surface 144, a lower surface 146, a rear end surface 149, and an effective light output. Region 150 and a light transition region 160. The lower surface 146 is opposite the upper surface 144, and the rear end surface 149 is adjacent to the upper surface 144 and the lower surface 146.
The effective light-emitting region 150 is a region in which the light incident on the light-guiding element 140 is uniformly emitted. The light-transition region 160 refers to the incident light of the light-guiding element 140 receiving the light-emitting unit 12 and the adjacent light-guiding element 140. The light is transmitted and the area of the aforementioned two rays is mixed. A light transmitting surface 170 is disposed between the effective light exiting region 150 and the light transition region 160. The light transmitting surface 170 is an interface between the effective light emitting region 150 and the light transition region 160.
Each of the light guiding elements 140 is made of a light transmissive material, such as: polymethyl methacrylate (PMMA), synthetic resin, acryl, polycarbonate (PC), polyester (PET), polyolefin (Polyolefines). Or glass, which is made by injection molding, etching, hot pressing or cutting.
The light transition region 160 is adjacent to the effective light exiting region 150. The light transition region 160 has a light incident surface 162. In this embodiment, the lower surface 146 gradually faces away from the light incident surface 162. The direction of the upper surface 144 is close to and connected to the rear end surface 149, so that the light guiding body 142 has a wedge shape. The light-incident surface 162 may be a rectangle, a circle, or other polygons. The light-transmitting surface 170 may be a rectangle, a circle, or other polygons, and the shape of the light-transmitting surface 170 and the shape of the light-incident surface 162 may be Similarly, the shape of the light transmitting surface 170 and the shape of the light incident surface 162 may be different; wherein the shape of the light transmitting surface 170 is the same as the shape of the light incident surface 162 to improve light transmission efficiency.
In addition, each of the light guiding bodies 142 further includes a first recess 145 disposed at the intersection of the upper surface 144 and the light incident surface 162 for the adjacent light guiding elements 140 to be stacked thereon. When the light guiding element assembly 14 is actually assembled, each of the light guiding elements 140 has one side of the rear end surface 149 stacked on the first groove 145 of the adjacent light guiding element 140, and the guiding The upper surface 144 of the light element 140 is located at the same horizontal plane to form a large light exiting area, so that the light incident on the light guiding element 140 by the light emitting units 12 is emitted as a light source.
The light incident surface 162 receives a first light emitted by the light emitting units 12 and a second light light transmitted from the adjacent light guiding elements 140 of the light guiding element 140, the first light and the second light The light is mixed in the light transition region 160, and the first light and the second light that are mixed are transmitted from the light transmitting surface 170 to the effective light exiting region 150.
The lower surface 146 is disposed at a corresponding light-emitting region 150, and a plurality of light-guiding particles 154 are disposed. The density of the light-guiding particles 154 is inversely proportional to the intensity of the light received by the set position, wherein the light is effectively emitted. The light intensity distribution of the region 150 is inversely proportional to the distance (light transmission distance) between the light transmission surface 170, that is, the shorter the light transmission distance, the stronger the light intensity, and the farther the light transmission distance is, the higher the light intensity is. weak. The arrangement density of the light guiding particles 154 is inversely proportional to the intensity of the light received by the set position. In other words, the smaller the received light intensity is, the smaller the density of the light guiding particles 154 is. The position where the light guiding particles 154 are disposed is relatively large as the light intensity is smaller. Moreover, the set depth of the light guiding particles 154 is inversely proportional to the intensity of the light received by the set position, wherein the set depth refers to a distance in which each of the light guiding particles 154 is recessed toward the upper surface 144. In this way, a surface light source that uniformly distributes light to the effective light exiting region 150 to provide a uniform light intensity is provided.
In a practical application, the light incident surface 162 of the light transition region 160 receives the first light emitted by the light emitting units 12 and the second light transmitted by the adjacent light guiding elements 140, the first light After the second light is mixed in the light transition region 160, the light is transmitted to the effective light exit region 150 via the light transmitting surface 170. When the light is transmitted to the effective light-emitting region 150 through the light-transmitting surface 170, the light-guiding particles 154 disposed in the effective light-emitting region 150 scatter the light, so that the light is uniformly transmitted to the effective light-emitting region 150, thereby The light guiding element 140 emits light with uniform brightness.
3 and 4 are respectively a perspective view and a cross-sectional view of a light source module according to a second embodiment of the present invention. The light source module 20 includes a plurality of light-emitting units 22 and a light-guiding element combination 24 for providing a light source required by the light source module 20, and the light-guiding element assembly 24 is used for guiding The light provided by the light-emitting units 22 is converted into a light source output.

The light-emitting units 22 emit light toward the light-guiding element combination 24, and in the embodiment, the light-emitting units 22 may be side-emitting type light-emitting diodes to face the light-guiding element combination 24 in a concentrated manner. The light is emitted to prevent the light from being emitted from an unnecessary orientation, thereby improving the overall light use efficiency of the light source module 20.
The light guiding element assembly 24 includes a plurality of light guiding elements 240. Each of the light guiding elements 240 has a light guiding body 242. The light guiding body 242 includes an upper surface 244, a lower surface 246, a rear end surface 249, and an effective light output. Region 250 and a light transition region 260. The lower surface 246 is opposite the upper surface 244, and the rear end surface 249 is adjacent to the upper surface 244 and the lower surface 246.
The effective light-emitting region 250 is a region where the light incident on the light-guiding element 240 is uniformly emitted; the light-transition region 260 is the light-guiding element 240 receiving the light incident from the light-emitting unit 22 and the adjacent light-guiding element 240 The light is transmitted and the area of the aforementioned two rays is mixed. A light transmitting surface 270 is disposed between the effective light exiting region 250 and the light transition region 260. The light transmitting surface 270 is an interface between the effective light emitting region 250 and the light transition region 260.
Each of the light guiding elements 240 is made of a light transmissive material such as polymethyl methacrylate, synthetic resin, acryl, polycarbonate, polyester, polyolefin or glass for injection molding, etching, hot pressing or cutting. Smooth plate made by machining, etc.
The light transition region 260 is adjacent to the effective light exit region 250, and the light transition region 260 has a light incident surface 262. The light incident surface 262 may be circular, rectangular or polygonal. The light transmitting surface 270 may be circular, rectangular or polygonal, and the shape of the light transmitting surface 270 and the shape of the light incident surface 262 may be the same. Alternatively, the shape of the light transmitting surface 270 and the shape of the light incident surface 262 may be different; wherein the shape of the light transmitting surface 270 is the same as the shape of the light incident surface 262 to improve light transmission efficiency.
In addition, each of the light guiding bodies 242 further includes a first recess 245 and a second recess 247. The first recess 245 is disposed at the intersection of the upper surface 244 and the light incident surface 262. The groove 247 is disposed at the intersection of the lower surface 246 and the rear end surface 249, so that the light guiding body 242 is stepped.
When the light guide component assembly 24 is actually assembled, the second recess 247 of each of the light guide components 240 is stacked on the first recess 245 of the adjacent light guide component 240 to enable the light guide components. The upper surfaces 244 of the 240 are all located on the same plane to form a large light exiting area, so that the light incident on the light guiding element 240 by the light emitting units 22 is emitted as a light source.
The light incident surface 262 receives a first light emitted by the light emitting units 22 and a second light light transmitted from the effective light exiting region 250 of the adjacent light guiding element 240 of the light guiding element 240. A light and the second light are mixed in the light transition region 260, and the first light and the second light are mixed by the light transmitting surface 270 to the effective light exiting region 250.
The lower surface 246 is provided with a plurality of light guiding particles 254 at the corresponding effective light exiting regions 250. The set density of the light guiding particles 254 is inversely proportional to the intensity of the light received by the set position, that is, the light intensity is received. The larger the position, the smaller the arrangement density of the light guiding particles 254 is, and the larger the arrangement density of the light guiding particles 254 is, the more the light intensity is received. Moreover, the set depth of the light guiding particles 254 is also inversely proportional to the intensity of light received by the set position. The surface light source of uniform light intensity is provided by effectively controlling the set density of the light guiding particles 254 and the depth thereof to effectively distribute the light uniformly to the effective light exiting region 250.
In a practical application, the light incident surface 262 receives the first light emitted by the light emitting units 22 and the second light transmitted by the adjacent light guiding elements 240, and the first light and the first light The second light is uniformly mixed in the light transition region 260 and then transmitted to the effective light exit region 250 via the light transmitting surface 270. The light guiding particles 254 disposed in the effective light exiting region 250 scatter the light rays such that the light is uniformly transmitted through the effective light exiting region 250, thereby allowing the light guiding element 240 to emit light with uniform brightness.
In summary, the light guiding component combination of the present invention transmits the first light ray emitted by the light emitting units and the second light ray transmitted by the adjacent light guiding elements in the light transition region through the light transition region The area is mixed and transmitted to the effective light exiting area via the light transmitting surface to improve the light uniformity of the light guiding element combination.
However, the above is only a preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the equivalent changes and modifications made by the scope of the present invention should still be covered by the patent of the present invention. The scope of the scope is intended to protect.

10、20．．．光源模組10, 20. . . Light source module

12、22．．．發光單元12, 22. . . Light unit

14、24．．．導光元件組合14, 24. . . Light guide component combination

140、240．．．導光元件140, 240. . . Light guiding element

142、242．．．導光本體142, 242. . . Light guide body

144、244．．．上表面144, 244. . . Upper surface

145、245．．．第一凹槽145, 245. . . First groove

146、246．．．下表面146, 246. . . lower surface

247．．．第二凹槽247. . . Second groove

149、249．．．後端面149, 249. . . Rear end face

150、250．．．有效出光區域150, 250. . . Effective light exit area

154、254．．．導光粒子154, 254. . . Light guiding particle

160、260．．．光過渡區域160, 260. . . Light transition zone

162、262．．．入光面162, 262. . . Glossy surface

170、270．．．光傳遞面170, 270. . . Light transmission surface

第一圖為本發明第一實施例之光源模組之立體圖。The first figure is a perspective view of a light source module according to a first embodiment of the present invention.

第二圖為本發明第一實施例之光源模組之剖視圖。The second figure is a cross-sectional view of a light source module according to a first embodiment of the present invention.

第三圖為本發明第二實施例之光源模組之立體圖。The third figure is a perspective view of a light source module according to a second embodiment of the present invention.

第四圖為本發明第二實施例之光源模組之剖視圖。The fourth figure is a cross-sectional view of a light source module according to a second embodiment of the present invention.

10．．．光源模組10. . . Light source module

12．．．發光單元12. . . Light unit

140．．．導光元件140. . . Light guiding element

142．．．導光本體142. . . Light guide body

144．．．上表面144. . . Upper surface

145．．．第一凹槽145. . . First groove

146．．．下表面146. . . lower surface

149．．．後端面149. . . Rear end face

150．．．有效出光區域150. . . Effective light exit area

154．．．導光粒子154. . . Light guiding particle

160．．．光過渡區域160. . . Light transition zone

162．．．入光面162. . . Glossy surface

170．．．光傳遞面170. . . Light transmission surface

Claims

A light source module comprising:
a plurality of light emitting units;
A light guiding element combination includes a plurality of light guiding elements, each of the light guiding elements having a light guiding body, the light guiding body comprising:
An upper surface;
a surface opposite to the upper surface;
An effective light exit area;
a light transition region adjacent to the effective light exiting region, the light transition region having a light incident surface, the light incident surface being adjacent to the upper surface and the lower surface;
The light guiding elements are stacked on the adjacent light guiding elements such that the upper surfaces of the adjacent two light guiding elements are located at the same horizontal plane, and the light incident surface receives a first light and a phase emitted by the light emitting units. A second light transmitted by the adjacent light guiding element, the first light and the second light are transmitted to the effective light exiting area by a light transmitting surface after the light is mixed.

The light source module of claim 1, wherein each of the light guiding bodies further comprises a rear end surface opposite to the light incident surface.

The light source module of claim 2, wherein each of the light guiding elements further comprises a first recess disposed at an intersection of the upper surface and the light incident surface.

The light source module of claim 3, wherein the lower surface is closer to the upper surface as it is away from the light incident surface.

The light source module of claim 3, wherein each of the light guiding elements further comprises a second recess disposed at an intersection of the lower surface and the rear end surface.

The light source module of claim 1, wherein the lower surface is provided with a plurality of light guiding particles at a region corresponding to the effective light exiting region.

The light source module of claim 6, wherein the light-guiding particles are arranged in a density inversely proportional to the light intensity received by the set position.

The light source module of claim 6, wherein the set depth of the light guiding particles is inversely proportional to the light intensity received by the set position.

The light source module of claim 1, wherein the shape of the light transmitting surface and the shape of the light incident surface are the same.

The light source module of claim 1, wherein the light transmitting surface is located between the effective light exiting region and the light transition region.