TW201541020A - Lighting fixture - Google Patents

Lighting fixture Download PDF

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Publication number
TW201541020A
TW201541020A TW103114396A TW103114396A TW201541020A TW 201541020 A TW201541020 A TW 201541020A TW 103114396 A TW103114396 A TW 103114396A TW 103114396 A TW103114396 A TW 103114396A TW 201541020 A TW201541020 A TW 201541020A
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Taiwan
Prior art keywords
light
luminaire
guiding portion
optical axis
disposed
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TW103114396A
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Chinese (zh)
Inventor
Zhi-Ting Ye
Ming-Chuan Lin
Wen-Chieh Wu
Chia-Hung Pan
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Wintek Corp
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Priority to TW103114396A priority Critical patent/TW201541020A/en
Publication of TW201541020A publication Critical patent/TW201541020A/en

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  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

A light fixture including a carrying portion, a transparent lampshade, a light source and a transparent heat sink module is provided. The light fixture has an optical axis. The transparent lampshade is disposed at a first side of the carrying portion. The light source is disposed between the carrying portion and the transparent lampshade. A transmission direction of a first portion of a light beam is opposite to a transmission direction of a second portion of the light beam. The first portion of the light beam leaves the light fixture from the transparent lampshade. At least one portion of a light guide portion of the transparent heat sink module is disposed at a second side of the carrying portion opposite to the first side. The light guide portion has a light incident surface, an outer surface, an inner surface and a light extraction structure. The inner surface is disposed between the outer surface and the optical axis. A second portion of the light beam enters the light guide portion through the light incident surface. The light extraction structure causes the second portion of the light beam leave the light fixture from the outer surface of the light guide portion along a direction far away the optical axis. Heat leaves the light fixture from the light guide portion.

Description

燈具 Lamp

本發明是有關於一種光學元件,且特別是關於一種燈具。 This invention relates to an optical component, and more particularly to a luminaire.

自湯瑪斯.愛迪生發明白熾燈(incandescent lamp)起,世界已廣泛使用電力進行照明,迄今更發展出高亮度且耐用的照明裝置,如螢光燈(fluorescent lamp)。相較於白熾燈泡,螢光燈具有高效率與低工作溫度之優點。然而,螢光燈中含有重金屬(例如汞),而重金屬於廢棄時易對環境造成傷害。 Since Thomas. Since Edison invented the incandescent lamp, the world has widely used electric lighting, and has developed a high-brightness and durable lighting device such as a fluorescent lamp. Fluorescent lamps have the advantages of high efficiency and low operating temperature compared to incandescent bulbs. However, fluorescent lamps contain heavy metals (such as mercury), which can cause environmental damage when discarded.

隨著照明技術的發展,一種更為節能環保的光源,即固態發光元件燈具已被開發出來。固態發光元件燈具中的固態發光元件例如為發光二極體。發光二極體藉由在P-N接面中電子與電洞複合來發光。相較於白熾燈或螢光燈,發光二極體燈具有低消耗功率(power consumption)、高發光效率(efficiency)與壽命長的優點。此外,固態發光元件燈具不需使用重金屬汞而更為環保。然而,在習知的固態發光元件燈具中,由於固態發光元件(例如發光二極體)的發光分布範圍過於集中,又容易發生熱累積而需搭配散熱模組以避免損壞,如此習知固態發光元件燈具所發出的光束 將受限於散熱模組的遮蔽,而無法像傳統白熾燈一樣提供較高的可發光面積與燈具整體表面積比。換句話說,若要提供相同的可發光面積,習知固態發光元件燈具由於需要連接額外的散熱模組而使得燈具的體積更大。 With the development of lighting technology, a more energy-saving and environmentally friendly light source, namely solid-state light-emitting component lamps, has been developed. The solid state light emitting elements in the solid state light emitting device luminaire are, for example, light emitting diodes. The light-emitting diode emits light by combining electrons and holes in the P-N junction. Compared to incandescent or fluorescent lamps, LED lamps have the advantages of low power consumption, high luminous efficiency and long life. In addition, solid-state light-emitting component lamps are more environmentally friendly without the use of heavy metal mercury. However, in the conventional solid-state light-emitting device lamp, since the light-emitting distribution range of the solid-state light-emitting element (for example, the light-emitting diode) is too concentrated, heat accumulation is likely to occur and the heat-dissipating module is required to avoid damage, so that the solid-state light-emitting device is known. Beam emitted by component luminaire It will be limited by the shielding of the thermal module, and will not provide a higher illuminable area than the traditional incandescent lamp. In other words, to provide the same illuminable area, conventional solid state lighting device luminaires are more bulky due to the need to connect additional heat sink modules.

本發明提供一種燈具,其具有可透光散熱模組,以增加燈具的可發光面積並能夠向四面八方傳遞光束。 The invention provides a lamp with a light-transmissive heat dissipation module to increase the illuminable area of the lamp and to transmit the light beam in all directions.

本發明的一種燈具,包括承載部、透光燈罩、用以發出光束的光源以及透光散熱模組。燈具具有光軸。透光燈罩配置於承載部的第一側。光源配置於承載部與透光燈罩之間。光束的第一部分的行進方向與光束的第二部分的行進方向相反。光束的第一部分自透光燈罩離開燈具。透光散熱模組包括導光部。導光部的至少一部分位於承載部的第二側。承載部的第一側與第二側相對。導光部具有入光面、外表面、內表面與光萃取結構。內表面位於外表面與光軸之間。光束的第二部分經由入光面進入導光部而在導光部中傳遞。光萃取結構使光束的第二部分沿著遠離光軸的方向自導光部的外表面離開燈具。導光部將光源所產生的熱導出。 A lamp of the present invention comprises a bearing portion, a light-transmitting lamp cover, a light source for emitting a light beam, and a light-transmitting heat dissipation module. The luminaire has an optical axis. The light-transmitting lamp cover is disposed on the first side of the carrying portion. The light source is disposed between the carrying portion and the transparent lamp cover. The direction of travel of the first portion of the beam is opposite to the direction of travel of the second portion of the beam. The first portion of the beam exits the fixture from the light transmissive cover. The light-transmitting heat dissipation module includes a light guiding portion. At least a portion of the light guiding portion is located on a second side of the carrier portion. The first side of the carrier is opposite the second side. The light guiding portion has a light incident surface, an outer surface, an inner surface, and a light extraction structure. The inner surface is located between the outer surface and the optical axis. The second portion of the light beam passes through the light incident surface into the light guiding portion and is transmitted in the light guiding portion. The light extraction structure causes the second portion of the beam to exit the luminaire from the outer surface of the light guide in a direction away from the optical axis. The light guiding portion derives heat generated by the light source.

在本發明的一實施例中,上述的導光部的入光面朝遠離光軸的方向傾斜。 In an embodiment of the invention, the light incident surface of the light guiding portion is inclined in a direction away from the optical axis.

在本發明的一實施例中,上述的導光部的入光面與垂直 於光軸的參考平面的夾角不大於45度且不小於30度。 In an embodiment of the invention, the light incident surface and the vertical direction of the light guiding portion The angle of the reference plane of the optical axis is not more than 45 degrees and not less than 30 degrees.

在本發明的一實施例中,上述的光源包括多個發光單元,各發光單元的發光面朝遠離光軸的方向傾斜。 In an embodiment of the invention, the light source includes a plurality of light emitting units, and the light emitting surfaces of the light emitting units are inclined in a direction away from the optical axis.

在本發明的一實施例中,上述的各發光單元包括多個發光元件。每一發光單元具有相對的第一發光面以及第二發光面。第一發光面位於光軸與第二發光面之間。 In an embodiment of the invention, each of the light emitting units includes a plurality of light emitting elements. Each of the light emitting units has a first first light emitting surface and a second light emitting surface. The first light emitting surface is located between the optical axis and the second light emitting surface.

在本發明的一實施例中,上述的各發光單元包括承載基板。承載基板具有相對的第一表面與第二表面。部份的發光元件配置於第一表面上。另一部分的發光元件配置於第二表面上。 In an embodiment of the invention, each of the light emitting units includes a carrier substrate. The carrier substrate has opposing first and second surfaces. A portion of the light emitting elements are disposed on the first surface. Another portion of the light emitting element is disposed on the second surface.

在本發明的一實施例中,上述的發光單元圍繞光軸以環狀或放射狀排列。 In an embodiment of the invention, the light-emitting units are arranged in a ring shape or a radial shape around the optical axis.

在本發明的一實施例中,上述的發光單元的承載基板為透光基板。 In an embodiment of the invention, the carrier substrate of the light emitting unit is a light transmissive substrate.

在本發明的一實施例中,上述的燈具,更包括控光元件。光源配置於控光元件與承載部之間,而光束經由控光元件引導至導光部。 In an embodiment of the invention, the luminaire further includes a light control element. The light source is disposed between the light control element and the carrying portion, and the light beam is guided to the light guiding portion via the light control element.

在本發明的一實施例中,上述的控光元件為光擴散元件。光擴散元件與光源相隔一段距離。 In an embodiment of the invention, the light control element is a light diffusing element. The light diffusing element is separated from the light source by a distance.

在本發明的一實施例中,上述的控光元件為導光板。導光板具有面向光源的凸面。光束被凸面引導至導光部。 In an embodiment of the invention, the light control element is a light guide plate. The light guide plate has a convex surface facing the light source. The light beam is convexly guided to the light guiding portion.

在本發明的一實施例中,上述的凸面的曲率半徑介於200毫米至350毫米。 In an embodiment of the invention, the convex surface has a radius of curvature of between 200 mm and 350 mm.

在本發明的一實施例中,上述的控光元件為導光板。導光板具有相對於凸面的一凹面以及多個第一微結構。凸面位於凹面與光源之間。凹面位於第一微結構與凸面之間。第一微結構將光束引導至透光燈罩的頂部。 In an embodiment of the invention, the light control element is a light guide plate. The light guide plate has a concave surface with respect to the convex surface and a plurality of first microstructures. The convex surface is located between the concave surface and the light source. The concave surface is located between the first microstructure and the convex surface. The first microstructure directs the beam to the top of the light transmissive cover.

在本發明的一實施例中,上述的控光元件為導光板。導光板包括透光基板以及面向光源且設置在透光基板上的多個第二微結構。第二微結構將來自光源的光束反射以構成光束的第二部分。 In an embodiment of the invention, the light control element is a light guide plate. The light guide plate includes a light transmissive substrate and a plurality of second microstructures facing the light source and disposed on the light transmissive substrate. The second microstructure reflects the beam from the source to form a second portion of the beam.

在本發明的一實施例中,上述的透光基板與光軸垂直地配置。 In an embodiment of the invention, the light-transmitting substrate is disposed perpendicular to the optical axis.

在本發明的一實施例中,上述的控光元件為光學透鏡。光學透鏡具有反射面,以將光束分離成光束的第一部分與光束的第二部分。 In an embodiment of the invention, the light control element is an optical lens. The optical lens has a reflective surface to separate the beam into a first portion of the beam and a second portion of the beam.

在本發明的一實施例中,上述的光學透鏡具有入光面、折射面、反射面以及連接反射面與入光面的折射面。反射面與入光面相對。光束被反射面反射至折射面。折射面將來自反射面的光束折射至導光部。 In an embodiment of the invention, the optical lens has a light incident surface, a refractive surface, a reflective surface, and a refractive surface connecting the reflective surface and the light incident surface. The reflecting surface is opposite to the incident surface. The light beam is reflected by the reflecting surface to the refractive surface. The refractive surface refracts the light beam from the reflecting surface to the light guiding portion.

在本發明的一實施例中,上述的光萃取結構位於外表面,且外表面為粗糙表面。 In an embodiment of the invention, the light extraction structure is located on the outer surface and the outer surface is a rough surface.

在本發明的一實施例中,上述的導光部具有多個散熱粒子,且導光部的熱輻射率大於0.4。 In an embodiment of the invention, the light guiding portion has a plurality of heat dissipating particles, and the heat emissivity of the light guiding portion is greater than 0.4.

在本發明的一實施例中,上述的光萃取結構位於導光部 內部,且光萃取結構為多個光散射粒子。 In an embodiment of the invention, the light extraction structure is located in the light guiding portion Internally, and the light extraction structure is a plurality of light scattering particles.

在本發明的一實施例中,上述的燈具更包括套筒。導光部圍繞套筒,且套筒的光密度大於2。 In an embodiment of the invention, the luminaire further includes a sleeve. The light guiding portion surrounds the sleeve, and the optical density of the sleeve is greater than two.

在本發明的一實施例中,上述的燈具更包括與光源電性連接的驅動元件,而驅動元件配置於套筒中。 In an embodiment of the invention, the luminaire further includes a driving component electrically connected to the light source, and the driving component is disposed in the sleeve.

在本發明的一實施例中,上述的燈具更包括燈頭與驅動元件。驅動元件與光源電性連接。透光散熱模組位於光源與燈頭之間。燈頭、透光散熱模組與承載部相接而構成一個空間。驅動元件設置於此空間中。 In an embodiment of the invention, the lamp further includes a lamp cap and a driving component. The driving component is electrically connected to the light source. The light-transmissive heat dissipation module is located between the light source and the lamp cap. The lamp cap and the light-transmissive heat-dissipating module are connected to the carrying portion to form a space. The drive components are placed in this space.

在本發明的一實施例中,上述的導光部環繞光軸而為環狀結構。 In an embodiment of the invention, the light guiding portion has a ring structure around the optical axis.

基於上述,本發明一實施例的燈具利用透光散熱模組可將光源發出的光束引導至其下半部出光,進而向四面八方傳遞光束。 Based on the above, the illuminating device of the embodiment of the present invention can guide the light beam emitted from the light source to the lower half to emit light, and then transmit the light beam in all directions.

為讓本發明的上述特徵和優點能更明顯易懂,下文特舉實施例,並配合所附圖式作詳細說明如下。 The above described features and advantages of the invention will be apparent from the following description.

100A~100H‧‧‧燈具 100A~100H‧‧‧Lights

110‧‧‧光源 110‧‧‧Light source

110a‧‧‧發光單元 110a‧‧‧Lighting unit

112‧‧‧承載基板 112‧‧‧Loading substrate

112a‧‧‧第一表面 112a‧‧‧ first surface

112b‧‧‧第二表面 112b‧‧‧ second surface

114‧‧‧發光元件 114‧‧‧Lighting elements

120‧‧‧透光散熱模組 120‧‧‧Lighting cooling module

122‧‧‧承載部 122‧‧‧Loading Department

124‧‧‧導光部 124‧‧‧Light Guide

124a‧‧‧入光面 124a‧‧‧Glossy

124b‧‧‧外表面 124b‧‧‧ outer surface

124c‧‧‧內表面 124c‧‧‧ inner surface

130‧‧‧透光燈罩 130‧‧‧Lighting lampshade

132‧‧‧頂部 132‧‧‧ top

140‧‧‧驅動元件 140‧‧‧Drive components

150‧‧‧燈頭 150‧‧‧ lamp holder

160A~160E‧‧‧控光元件 160A~160E‧‧‧Light control components

160a‧‧‧凸面 160a‧‧ ‧ convex

160b‧‧‧凹面 160b‧‧‧ concave

161‧‧‧入光面 161‧‧‧Into the glossy side

162‧‧‧透光基板 162‧‧‧Transparent substrate

163‧‧‧反射面 163‧‧‧reflecting surface

164‧‧‧第二微結構 164‧‧‧Second microstructure

165‧‧‧折射面 165‧‧‧Reflective surface

166‧‧‧第一微結構 166‧‧‧First microstructure

170‧‧‧套筒 170‧‧‧ sleeve

d‧‧‧方向 D‧‧‧ Direction

F‧‧‧參考平面 F‧‧‧ reference plane

k‧‧‧距離 K‧‧‧distance

L‧‧‧光束 L‧‧‧beam

L’‧‧‧第一部份 L’‧‧‧ first part

L”‧‧‧第二部份 L"‧‧‧ Part II

P‧‧‧粒子 P‧‧‧ particles

R‧‧‧空間 R‧‧‧ Space

X‧‧‧光軸 X‧‧‧ optical axis

θ‧‧‧銳角 Θ‧‧‧ acute angle

圖1為本發明一實施例的燈具的剖面示意圖。 1 is a cross-sectional view of a lamp according to an embodiment of the present invention.

圖2為本發明一實施例的燈具的剖面示意圖。 2 is a cross-sectional view of a lamp according to an embodiment of the present invention.

圖3為本發明一實施例的燈具的剖面示意圖。 3 is a cross-sectional view of a lamp according to an embodiment of the present invention.

圖4為本發明一實施例的燈具的剖面示意圖。 4 is a cross-sectional view of a lamp according to an embodiment of the present invention.

圖5為本發明一實施例的燈具的剖面示意圖。 FIG. 5 is a cross-sectional view of a lamp according to an embodiment of the present invention.

圖6為本發明一實施例的燈具的剖面示意圖。 Fig. 6 is a cross-sectional view showing a lamp according to an embodiment of the present invention.

圖7為本發明一實施例的燈具的剖面示意圖。 Fig. 7 is a cross-sectional view showing a lamp according to an embodiment of the present invention.

圖8為本發明一實施例的燈具的剖面示意圖。 FIG. 8 is a cross-sectional view of a lamp according to an embodiment of the present invention.

圖1為本發明一實施例的燈具的剖面示意圖。請參照圖1,本實施例的燈具100A包括光源110、承載部122、透光散熱模組120以及透光燈罩130。透光燈罩130位於承載部122的第一側。光源110配置於承載部122上,且光源110配置於承載部122與透光燈罩130之間。光源110用以發出光束L。光束L包括行進方向相反的第一部分L’與第二部份L”。光束L的第一部分L’自透光燈罩130離開燈具100A。透光散熱模組120包括導光部124。導光部124的至少一部分位於承載部122的第二側。承載部122的第一側與第二側相對。 1 is a cross-sectional view of a lamp according to an embodiment of the present invention. Referring to FIG. 1 , the lamp 100A of the present embodiment includes a light source 110 , a carrying portion 122 , a light-transmitting heat dissipation module 120 , and a light-transmitting lamp cover 130 . The light-transmitting lamp cover 130 is located on the first side of the carrier portion 122. The light source 110 is disposed on the carrying portion 122 , and the light source 110 is disposed between the carrying portion 122 and the transparent cover 130 . The light source 110 is used to emit a light beam L. The light beam L includes a first portion L' and a second portion L" having opposite traveling directions. The first portion L' of the light beam L exits the light fixture 100A from the light-transmitting cover 130. The light-transmitting heat dissipation module 120 includes a light guiding portion 124. At least a portion of the 124 is located on a second side of the carrier 122. The first side of the carrier 122 is opposite the second side.

在本實施例中,光源110位於燈罩130與導光部124共同限制的容置空間中。光源110可包括多個發光單元110a。發光單元110a圍繞光軸X以環狀或放射狀排列。更進一步地說,發光單元110a可對稱於光軸X排列。每一發光單元110a可包括承載基板112以及配置於承載基板112上的至少一發光元件114(例如發光二極體或其他固態光源)。由於承載基板112朝遠離光軸X的 方向d傾斜,即,各發光單元的發光面朝遠離光軸X的方向傾斜,因此有大量的光束L的第二部份L”向導光部124的入光面124a傳遞。光束L的第二部份L”穿過入光面124a後可在導光部124中傳輸一段距離後自外表面124b出光,而進一步地提升燈具100A的光學特性。 In the embodiment, the light source 110 is located in the accommodating space defined by the lamp cover 130 and the light guiding portion 124. The light source 110 may include a plurality of light emitting units 110a. The light emitting units 110a are arranged in a ring shape or a radial shape around the optical axis X. Further, the light emitting units 110a may be arranged symmetrically with respect to the optical axis X. Each of the light emitting units 110a may include a carrier substrate 112 and at least one light emitting element 114 (eg, a light emitting diode or other solid state light source) disposed on the carrier substrate 112. Since the carrier substrate 112 faces away from the optical axis X The direction d is inclined, that is, the light-emitting surface of each of the light-emitting units is inclined away from the optical axis X, so that the second portion L" of the plurality of light beams L is transmitted to the light-incident surface 124a of the light-emitting portion 124. The second light beam L After passing through the light incident surface 124a, the portion L" can be emitted from the outer surface 124b after being transmitted for a distance in the light guiding portion 124, thereby further enhancing the optical characteristics of the luminaire 100A.

在本實施例中,每一發光單元110a可包括多個發光元件114。每一發光單元110a具有相對的一第一發光面以及一第二發光面,第一發光面位於光軸X與第二發光面之間。每一發光單元110a的承載基板112具有相對的第一表面112a以及第二表面112b。第一表面112a位於光軸X與第二表面112b之間。部份的發光元件114可配置於第一表面112a上,而另一部分的發光元件114可配置於第二表面112b上。換言之,發光單元110a可為雙面發光結構。配置於第一表面112a上的發光元件114所發出的大部分的光束L可向透光燈罩130的頂部132傳遞,而使燈具100A的上半部發光。配置於第二表面112b上的發光元件114所發出的大部分的光束L可向透光散熱模組120傳遞,進而使燈具100A的下部發光。如此,可使燈具100A’向四面八方傳遞光束L。 In the present embodiment, each of the light emitting units 110a may include a plurality of light emitting elements 114. Each of the light emitting units 110a has a first light emitting surface and a second light emitting surface, and the first light emitting surface is located between the optical axis X and the second light emitting surface. The carrier substrate 112 of each of the light emitting units 110a has an opposite first surface 112a and a second surface 112b. The first surface 112a is located between the optical axis X and the second surface 112b. A portion of the light-emitting elements 114 can be disposed on the first surface 112a, and another portion of the light-emitting elements 114 can be disposed on the second surface 112b. In other words, the light emitting unit 110a may be a double-sided light emitting structure. Most of the light beam L emitted by the light-emitting element 114 disposed on the first surface 112a can be transmitted to the top 132 of the light-transmitting cover 130, causing the upper half of the light fixture 100A to emit light. Most of the light beam L emitted by the light-emitting element 114 disposed on the second surface 112b can be transmitted to the light-transmitting heat dissipation module 120, thereby causing the lower portion of the lamp 100A to emit light. Thus, the lamp 100A' can be made to transmit the light beam L in all directions.

在本實施例中,燈具100A更可包括與光源110電性連接的驅動元件140、燈頭150及套筒170。燈頭150位於承載部122的第二側,燈頭150、透光散熱模組120與承載部122可相接而構成一個空間R。套筒170配置於空間R中,而被導光部124所圍繞。套筒170的光密度(optical density)可大於2,以提供遮蔽效果。 驅動元件140配置於空間R中且可配置於套筒170中而被套筒170所遮蔽。進一步地說,套筒170可具有色彩、光反射結構或兼具兩者。由於導光部124為可透光材質,因此具色彩的套筒170可被使用者所觀察到,進而增添燈具100A的美感。另外,當套筒170具光反射結構時,可將自導光部124的內表面124c離開導光部124的光束L反射回導光部124中,進而增加燈具100A的光利用效率。其中,光反射結構可以為鏡面反射層、光散射層、噴砂面或微結構面。透光散熱模組120位於光源110與燈頭150之間。另外,藉由導光部124與承載部122相接,來自光源110的熱可以從承載部122傳導至導光部124而散出。其中,導光部124與承載部122可以為直接相接或間接相接,只要來自光源110的熱可以從承載部122傳導至導光部124即可。 In this embodiment, the luminaire 100A further includes a driving component 140, a lamp cap 150 and a sleeve 170 electrically connected to the light source 110. The base 150 is located on the second side of the carrying portion 122. The base 150 and the transparent heat dissipation module 120 are coupled to the carrying portion 122 to form a space R. The sleeve 170 is disposed in the space R and surrounded by the light guiding portion 124. The optical density of the sleeve 170 can be greater than two to provide a shadowing effect. The drive element 140 is disposed in the space R and can be disposed in the sleeve 170 to be shielded by the sleeve 170. Further, the sleeve 170 can have a color, a light reflecting structure, or both. Since the light guiding portion 124 is a light permeable material, the colored sleeve 170 can be observed by the user, thereby adding the aesthetics of the luminaire 100A. In addition, when the sleeve 170 has a light reflecting structure, the light beam L from the inner surface 124c of the light guiding portion 124 away from the light guiding portion 124 can be reflected back into the light guiding portion 124, thereby increasing the light utilization efficiency of the lamp 100A. The light reflecting structure may be a specular reflective layer, a light scattering layer, a sandblasted surface or a microstructured surface. The light-transmissive heat dissipation module 120 is located between the light source 110 and the base 150. Further, by the light guiding portion 124 being in contact with the carrier portion 122, heat from the light source 110 can be conducted from the carrier portion 122 to the light guiding portion 124 to be dissipated. The light guiding portion 124 and the carrying portion 122 may be directly or indirectly connected, as long as heat from the light source 110 can be conducted from the carrying portion 122 to the light guiding portion 124.

於本實施例中,透光散熱模組120的導光部124為透光材質,而承載部122可為不透光材質。舉例而言,導光部124的材質可為透光塑料,例如為聚甲基丙烯酸甲酯(Poly(methyl methacrylate);PMMA)或聚碳酸酯(Polycarbonate;PC)。承載部122可為不透明金屬核心印刷電路板(Metal Core Printed Circuit Board;MCPCB)或陶瓷散熱基板。承載部122的熱傳導係數可大於導光部124的熱傳導係數,以使來自光源110的熱可從承載部122迅速地被傳導至導光部124。然而,本發明不限於此,在其他實施例中,導光部124及承載部122亦可為其他適當材料,且承載部122亦可具有透光或反光特性。舉例而言,在另一實施例中, 承載部122亦可包括與導光部124相同的透光材料。承載部122可與導光部124一體成型,例如採用嵌入成型(insert molding)技術相固定,而使燈具100A更易於組裝。 In this embodiment, the light guiding portion 124 of the transparent heat dissipation module 120 is a light transmissive material, and the bearing portion 122 can be an opaque material. For example, the material of the light guiding portion 124 may be a light transmissive plastic, such as poly(methyl methacrylate) (PMMA) or polycarbonate (PC). The carrying portion 122 can be an opaque metal core printed circuit board (MCPCB) or a ceramic heat sink substrate. The heat transfer coefficient of the load-bearing portion 122 may be greater than the heat transfer coefficient of the light guide portion 124 such that heat from the light source 110 may be quickly conducted from the load-bearing portion 122 to the light guide portion 124. However, the present invention is not limited thereto. In other embodiments, the light guiding portion 124 and the carrying portion 122 may be other suitable materials, and the carrying portion 122 may also have light transmitting or reflecting characteristics. For example, in another embodiment, The carrying portion 122 may also include the same light transmissive material as the light guiding portion 124. The carrier portion 122 can be integrally formed with the light guiding portion 124, for example, by insert molding technology, to make the lamp 100A easier to assemble.

為了使導光部124具有較佳的散熱效果,本實例的導光部124中具有多個散熱粒子P,使導光部124的熱輻射率可大於0.4。散熱粒子P可兼具散熱性與光散射性。散熱粒子P例如為具高輻射率的陶瓷粉末、尼龍顆粒或其他適當材料。另外,當承載部122採用透光材料時,其內部亦可以具有散熱粒子P。 In order to make the light guiding portion 124 have a better heat dissipation effect, the light guiding portion 124 of the present example has a plurality of heat dissipating particles P, so that the heat emissivity of the light guiding portion 124 can be greater than 0.4. The heat dissipating particles P have both heat dissipation and light scattering properties. The heat dissipating particles P are, for example, ceramic powder having high emissivity, nylon particles or other suitable materials. In addition, when the carrier portion 122 is made of a light transmissive material, the interior thereof may also have heat dissipating particles P.

在本實施例中,承載部122可為與燈具100A的光軸X垂直的平板。導光部124可為環繞光軸X的環狀結構。導光部124的外表面124b可隨著遠離光源110而逐漸靠近光軸X。導光部124具有外表面124b、位於光軸X與外表面124b之間的內表面124c、連接外表面124b與內表面124c的入光面124a以及光萃取結構。舉例而言,光萃取結構可為位於導光部124內部的光散射粒子(例如散熱粒子P)。或者,為了進一步良好地控制從導光部124的外表面124b離開的光束L的均勻性,導光部124的外表面124b可具有微結構以構成光萃取結構。微結構可以為規則結構或不規則結構。此外,在其他實施例中,光萃取結構亦可為形成於導光部124的外表面124b的光散射塗層或薄膜。本實施例中,外表面124b可為粗糙表面以構成光萃取結構。藉此,粗糙的外表面124b可破壞光束L在導光部124中的全反射,而使光束L自導光部124的外表面124b出射。另外,於一變化實施例中,導光部124的內表 面124c上可以設置一鏡面反射塗層,以避免光束L從內表面124c離開,進而增加燈具100A的光利用效率,同時遮蔽配置於空間R中的元件,例如驅動元件140。或者,導光部124的內表面124c上可以設置裝飾層,其中裝飾層的光密度可大於2,以遮蔽配置於空間R中的元件。藉由在導光部124的內表面124c上設置鏡面反射塗層或裝飾層,套筒170可以被省略,從而減輕燈具100A的重量與體積。然而,本發明不限於此,在其他實施例中,承載部122及導光部124可依實際需求設計為其他適當形式。 In the present embodiment, the carrying portion 122 may be a flat plate that is perpendicular to the optical axis X of the luminaire 100A. The light guiding portion 124 may be an annular structure surrounding the optical axis X. The outer surface 124b of the light guiding portion 124 may gradually approach the optical axis X as it moves away from the light source 110. The light guiding portion 124 has an outer surface 124b, an inner surface 124c between the optical axis X and the outer surface 124b, a light incident surface 124a connecting the outer surface 124b and the inner surface 124c, and a light extraction structure. For example, the light extraction structure may be light scattering particles (eg, heat dissipating particles P) located inside the light guiding portion 124. Alternatively, in order to further well control the uniformity of the light beam L exiting from the outer surface 124b of the light guiding portion 124, the outer surface 124b of the light guiding portion 124 may have a microstructure to constitute a light extraction structure. The microstructure can be a regular structure or an irregular structure. Moreover, in other embodiments, the light extraction structure can also be a light scattering coating or film formed on the outer surface 124b of the light guiding portion 124. In this embodiment, the outer surface 124b can be a rough surface to form a light extraction structure. Thereby, the rough outer surface 124b can destroy the total reflection of the light beam L in the light guiding portion 124, and the light beam L is emitted from the outer surface 124b of the light guiding portion 124. In addition, in a variant embodiment, the inner surface of the light guiding portion 124 A specularly reflective coating may be disposed on face 124c to prevent beam L from exiting from inner surface 124c, thereby increasing the light utilization efficiency of luminaire 100A while shielding components disposed in space R, such as drive element 140. Alternatively, a decorative layer may be disposed on the inner surface 124c of the light guiding portion 124, wherein the decorative layer may have an optical density greater than 2 to shield the components disposed in the space R. By providing a specularly reflective coating or decorative layer on the inner surface 124c of the light guiding portion 124, the sleeve 170 can be omitted, thereby reducing the weight and volume of the luminaire 100A. However, the present invention is not limited thereto. In other embodiments, the carrying portion 122 and the light guiding portion 124 may be designed in other suitable forms according to actual needs.

本實施例中,導光部124以光軸X為軸對稱。光源110所發出的光束L的第二部份L”在導光部124中傳遞,由於導光部124具有光萃取結構(例如散熱粒子P),光束L的第二部份L”可朝遠離光軸X的方向d從導光部124的外表面124b離開燈具100A。換言之,利用透光的導光部124,光源110所發出的光束L的第二部份L”可進入透光散熱模組120中,進而由燈具100A的下半部(即承載部122的第二側)出光。如此一來,燈具100上半部(即位於承載部122的第一側的透光燈罩130)與下半部皆可出光,而提升燈具100A的可發光面積。 In the present embodiment, the light guiding portion 124 is axially symmetrical with respect to the optical axis X. The second portion L" of the light beam L emitted by the light source 110 is transmitted in the light guiding portion 124. Since the light guiding portion 124 has a light extraction structure (for example, the heat dissipating particles P), the second portion L" of the light beam L can be moved away The direction d of the optical axis X exits the luminaire 100A from the outer surface 124b of the light guiding portion 124. In other words, with the light-transmitting light guiding portion 124, the second portion L" of the light beam L emitted by the light source 110 can enter the light-transmitting heat-dissipating module 120, and further the lower half of the light-emitting device 100A (ie, the first portion of the carrying portion 122) In this way, the upper half of the luminaire 100 (ie, the light-transmitting cover 130 on the first side of the carrying portion 122) and the lower half can emit light, and the illuminable area of the luminaire 100A can be raised.

在本實施例中,為使更多的光束L進入導光部124中,導光部124的入光面124a可朝遠離光軸X的方向d傾斜。換言之,入光面124a相對於承載部122傾斜且面向光軸X而背向燈頭150。透過傾斜配置的入光面124a,光束L的第二部分L”可被偏折而提高光束L的第二部分L”在導光部124全反射傳遞的量。如 此一來,導光部124的發光面積與亮度可增加,進而提高光束L的第二部分L”的利用率。在本實施例中,設參考平面F垂直於光軸X,入光面124a與參考平面F在導光部124內可夾有銳角θ。在本實施例中,銳角θ可不小於30度且不大於45度。然而,本發明不限於此,銳角θ的大小可視光源110的發光特性及光源110與導光部124的相對位置而做適當設計。 In the present embodiment, in order to allow more light beams L to enter the light guiding portion 124, the light incident surface 124a of the light guiding portion 124 may be inclined in a direction d away from the optical axis X. In other words, the light incident surface 124a is inclined with respect to the carrier portion 122 and faces the optical axis X and faces away from the base 150. Through the obliquely disposed light incident surface 124a, the second portion L" of the light beam L can be deflected to increase the amount of total reflection of the second portion L" of the light beam L at the light guiding portion 124. Such as As a result, the light-emitting area and the brightness of the light guiding portion 124 can be increased, thereby increasing the utilization ratio of the second portion L" of the light beam L. In this embodiment, the reference plane F is perpendicular to the optical axis X, and the light-incident surface 124a An acute angle θ may be interposed in the light guiding portion 124 with the reference plane F. In the embodiment, the acute angle θ may be not less than 30 degrees and not more than 45 degrees. However, the present invention is not limited thereto, and the magnitude of the acute angle θ may be visually visible to the light source 110. The light-emitting characteristics and the relative positions of the light source 110 and the light guiding portion 124 are appropriately designed.

需說明的是,本發明的精神在於利用透光散熱模組的導光部將光束引導至燈具的下半部出光,進而實現整體發光的燈具。實現上述效果並不限於導光部是否具有傾斜的入光面或其他可選的附加特徵。在其他實施例中,燈具可利用其他適當形式的光源、光源與其他構件的交互作用、或其他適當方式搭配上透光散熱模組實現整體發光。以下將利用圖2至圖9舉例說明之。 It should be noted that the spirit of the present invention is to use a light guiding portion of the light-transmitting heat-dissipating module to guide the light beam to the lower half of the lamp to emit light, thereby realizing the overall lighting. Achieving the above effects is not limited to whether the light guiding portion has an inclined light incident surface or other optional additional features. In other embodiments, the luminaire can utilize other suitable forms of light source, interaction of the light source with other components, or other suitable means to match the light-transmissive heat dissipation module to achieve overall illumination. The following will be exemplified using FIGS. 2 to 9.

圖2為本發明一實施例的燈具的剖面示意圖。請參照圖2,燈具100B與燈具100A類似,因此相同的元件以相同的標號表示。燈具100B與燈具100A的主要差異在於:發光單元110a的承載基板112可為透光基板,而發光元件114可皆配置於承載基板112的第一表面112a。發光元件114的部分光束L可向透光燈罩130的頂部132傳遞,以構成光束L的第一部份L’。光束L的第一部份L’可使燈具100B的上半部發光。發光元件114的另一部分光束L更可穿過透光的承載基板112而傳遞至導光部124,以構成光束L的第二部份L”。光束L的第二部份L”可從導光部124出射,而使燈具100B的下半部發光,以提升燈具100B的可發光面 積。 2 is a cross-sectional view of a lamp according to an embodiment of the present invention. Referring to FIG. 2, the luminaire 100B is similar to the luminaire 100A, and thus the same elements are denoted by the same reference numerals. The main difference between the luminaire 100B and the luminaire 100A is that the carrier substrate 112 of the illuminating unit 110a can be a transparent substrate, and the illuminating elements 114 can be disposed on the first surface 112a of the carrier substrate 112. A portion of the light beam L of the light-emitting element 114 can be transmitted to the top 132 of the light transmissive cover 130 to form a first portion L' of the light beam L. The first portion L' of the light beam L causes the upper half of the luminaire 100B to illuminate. The other part of the light beam L of the light-emitting element 114 can be transmitted to the light guiding portion 124 through the light-transmitting carrier substrate 112 to form a second portion L" of the light beam L. The second portion L" of the light beam L can be guided The light portion 124 is emitted to cause the lower half of the lamp 100B to emit light to enhance the illuminable surface of the lamp 100B. product.

圖3為本發明一實施例的燈具的剖面示意圖。請參照圖3,燈具100C與燈具100B類似,因此相同的元件以相同的標號表示。燈具100C與燈具100B的主要差異在於:燈具100C更包括控光元件160A,且光源110的發光元件114配置於承載部122。即,光源110的發光面面向透光燈罩130的頂部132。本實施例中,光源110配置於控光元件160A與承載部122之間。控光元件160A可為光擴散元件,例如以聚碳酸酯為基材(Polycarbonate)加入擴散劑的光擴散板或表面具有噴砂面的霧面板,但不為此限。控光元件160A與光源110相隔一段距離k。光源110所發出的部分光束L可被控光元件160A反射而傳遞至導光部124,以構成光束L的第二部份L”。光束L的第二部份L”可由導光部124的外表面124b離開,進而使燈具100C的下半部發光。光源110所發出的另一部分光束L可穿過控光元件160A以構成光束L的第一部份L’。光束L的第一部份L’穿過控光元件160A後可傳遞至透光燈罩130,進而使燈具100C的上半部發光。如此,燈具100C的可發光面積便可明顯增加,進而向四面八方發光。 3 is a cross-sectional view of a lamp according to an embodiment of the present invention. Referring to FIG. 3, the luminaire 100C is similar to the luminaire 100B, and thus the same elements are denoted by the same reference numerals. The main difference between the luminaire 100C and the luminaire 100B is that the luminaire 100C further includes the light control element 160A, and the illuminating element 114 of the light source 110 is disposed on the carrying portion 122. That is, the light emitting surface of the light source 110 faces the top 132 of the light transmissive cover 130. In this embodiment, the light source 110 is disposed between the light control element 160A and the carrying portion 122. The light control element 160A may be a light diffusing element such as a light diffusing plate to which a diffusing agent is added as a polycarbonate or a matte surface having a sandblasting surface, but is not limited thereto. Light control element 160A is separated from light source 110 by a distance k. The partial light beam L emitted by the light source 110 can be reflected by the light control element 160A and transmitted to the light guiding portion 124 to constitute a second portion L" of the light beam L. The second portion L" of the light beam L can be made by the light guiding portion 124. The outer surface 124b exits, thereby causing the lower half of the luminaire 100C to illuminate. Another portion of the light beam L emitted by the light source 110 can pass through the light control element 160A to form a first portion L' of the light beam L. The first portion L' of the light beam L passes through the light control element 160A and is transmitted to the light-transmitting cover 130, thereby causing the upper half of the lamp 100C to emit light. In this way, the illuminable area of the luminaire 100C can be significantly increased, thereby illuminating in all directions.

圖4為本發明一實施例的燈具的剖面示意圖。請參照圖4,燈具100D與燈具100C類似,因此相同的元件以相同的標號表示。燈具100D與燈具100C的主要差異在於:燈具100D的控光元件160B為導光板。控光元件160B包括透光基板162以及面向光源110且設置在透光基板162上的多個第二微結構164。透光基 板162可與光軸X垂直地配置。第二微結構164將來自光源110的光束L反射或部分折射部分反射,以構成光束L的第二部分L”。光束L的第二部分L”被第二微結構164反射後可傳遞至透光散熱模組120的導光部124。特別是,第二微結構164可使光束L的第二部分L”以較大的反射角離開控光元件160B,而增加光束L進入導光部124的機率,進而提升燈具100D的光學特性。 4 is a cross-sectional view of a lamp according to an embodiment of the present invention. Referring to FIG. 4, the luminaire 100D is similar to the luminaire 100C, and thus the same elements are denoted by the same reference numerals. The main difference between the luminaire 100D and the luminaire 100C is that the light control element 160B of the luminaire 100D is a light guide plate. The light control element 160B includes a light transmissive substrate 162 and a plurality of second microstructures 164 that face the light source 110 and are disposed on the light transmissive substrate 162. Light-transmitting base The plate 162 can be disposed perpendicular to the optical axis X. The second microstructure 164 reflects or partially refracts the light beam L from the light source 110 to form a second portion L" of the light beam L. The second portion L" of the light beam L is reflected by the second microstructure 164 and can be transmitted to The light guiding portion 124 of the light dissipation module 120. In particular, the second microstructure 164 can cause the second portion L" of the light beam L to exit the light control element 160B at a larger angle of reflection, thereby increasing the probability of the light beam L entering the light guide portion 124, thereby enhancing the optical characteristics of the luminaire 100D.

在燈具100D中,第二微結構164的剖面可呈弧形。然而,本發明不限於此,在其他實施例中,第二微結構164的剖面亦可呈其他適當形狀。圖5為本發明一實施例的燈具的剖面示意圖。請參照圖5,燈具100E與燈具100D類似,因此相同的元件以相同的標號表示。在燈具100E中,第二微結構164的剖面可呈三角狀。 In the luminaire 100D, the cross section of the second microstructure 164 may be curved. However, the invention is not limited thereto, and in other embodiments, the cross section of the second microstructure 164 may also have other suitable shapes. FIG. 5 is a cross-sectional view of a lamp according to an embodiment of the present invention. Referring to FIG. 5, the luminaire 100E is similar to the luminaire 100D, and thus the same elements are denoted by the same reference numerals. In the luminaire 100E, the second microstructure 164 may have a triangular cross section.

圖6為本發明一實施例的燈具的剖面示意圖。請參照圖6,燈具100F與燈具100C類似,因此相同的元件以相同的標號表示。燈具100F與燈具100C的主要差異在於:燈具100F的控光元件160C與燈具100C的控光元件160A不同。在燈具100F中,控光元件160C具有面向光源110的凸面160a。可選地,控光元件160C還可具有相對於凸面160a的凹面160b。可選地,控光元件160C的本身可加入擴散劑或者其凸面160a可為噴砂面或實施有如同圖4或圖5所揭露的第二微結構,藉以具有光擴散或導光作用。透過凸面160a,控光元件160C可將光源110發出的部份光束L反射,以構成光束L的第二部分L”。光束L的第二部分L”被 凸面160a反射後可傳遞至透光散熱模組120的導光部124,進而使燈具100F的下半部發光。特別是,凸面160a可使光束L以較大的反射角離開控光元件160C,而增加光束L進入導光部124的機率,進而提升燈具100F的光學特性。在圖6中,凸面160a的曲率半徑可介於200毫米至350毫米。但本發明不以此為限,凸面160a的曲率半徑可視實際的需求而適當地設計。 Fig. 6 is a cross-sectional view showing a lamp according to an embodiment of the present invention. Referring to Figure 6, the luminaire 100F is similar to the luminaire 100C, and thus the same elements are denoted by the same reference numerals. The main difference between the luminaire 100F and the luminaire 100C is that the light control element 160C of the luminaire 100F is different from the light control element 160A of the luminaire 100C. In the luminaire 100F, the light control element 160C has a convex surface 160a facing the light source 110. Alternatively, the light control element 160C may also have a concave surface 160b with respect to the convex surface 160a. Alternatively, the light control element 160C may itself be added with a diffusing agent or its convex surface 160a may be a sandblasted surface or a second microstructure as disclosed in FIG. 4 or FIG. 5, thereby having light diffusion or light guiding effect. Through the convex surface 160a, the light control element 160C can reflect a part of the light beam L emitted by the light source 110 to form a second portion L" of the light beam L. The second portion L" of the light beam L is The convex surface 160a is reflected and transmitted to the light guiding portion 124 of the light-transmitting heat dissipation module 120, thereby further illuminating the lower half of the lamp 100F. In particular, the convex surface 160a can cause the light beam L to leave the light control element 160C at a large reflection angle, and increase the probability that the light beam L enters the light guiding portion 124, thereby improving the optical characteristics of the light fixture 100F. In FIG. 6, the convex surface 160a may have a radius of curvature of between 200 mm and 350 mm. However, the present invention is not limited thereto, and the radius of curvature of the convex surface 160a may be appropriately designed according to actual needs.

圖7為本發明一實施例的燈具的剖面示意圖。請參照圖7,燈具100G與燈具100F類似,因此相同的元件以相同的標號表示。燈具100G與燈具100F的主要差異在於:在圖7中,控光元件160D除了具有凸面160a外,更具有相對於凸面160a的凹面160b以及多個第一微結構166。凸面160a位於凹面160b與光源110之間。凹面160b位於第一微結構166與凸面160a之間。控光元件160D位於透光燈罩130的頂部132與光源110之間。光源110發出的部分光束L可經由第一微結構166的引導而向透光燈罩130的頂部132傳遞,以構成光束L的第一部份L’。值得一提的是,控光元件160D除了可將光束L的第二部份L”引導至透光散熱模組120的導光部124出光外,控光元件160D的第一微結構166更可將光束L的第一部份L’均勻地分散至透光燈罩130的頂部132,而進一步地提升燈具100G的光學特性。本實施例中,第一微結構166的剖面可呈弧形。然而,本發明不限於此,在其他實施例中,第一微結構166的剖面亦可呈其他適當形狀,例如三角形。 Fig. 7 is a cross-sectional view showing a lamp according to an embodiment of the present invention. Referring to Figure 7, the luminaire 100G is similar to the luminaire 100F, and thus the same elements are denoted by the same reference numerals. The main difference between the luminaire 100G and the luminaire 100F is that, in FIG. 7, the light control element 160D has a concave surface 160b with respect to the convex surface 160a and a plurality of first microstructures 166 in addition to the convex surface 160a. The convex surface 160a is located between the concave surface 160b and the light source 110. The concave surface 160b is located between the first microstructure 166 and the convex surface 160a. The light control element 160D is located between the top 132 of the light transmissive cover 130 and the light source 110. A portion of the light beam L emitted by the light source 110 can be transmitted to the top portion 132 of the light transmissive cover 130 via the guidance of the first microstructure 166 to form a first portion L' of the light beam L. It is worth mentioning that the light control element 160D can guide the second portion L′ of the light beam L to the light guiding portion 124 of the light-transmitting heat dissipation module 120, and the first microstructure 166 of the light control element 160D can be further The first portion L' of the light beam L is evenly dispersed to the top 132 of the light transmissive cover 130 to further enhance the optical characteristics of the luminaire 100G. In this embodiment, the cross section of the first microstructure 166 may be curved. The invention is not limited thereto. In other embodiments, the cross section of the first microstructure 166 may also have other suitable shapes, such as a triangle.

圖8為本發明一實施例的燈具的剖面示意圖。請參照圖8,燈具100H與燈具100C類似,因此相同的元件以相同的標號表示。燈具100H與燈具100C的主要差異在於:燈具100H的控光元件160E為光學透鏡。控光元件160E具有面向光源110的入光面161、相對於入光面161的反射面163以及連接反射面163與入光面161的折射面165。控光元件160E的反射面163可將光束L分離成光束L的第一部分L’與光束L的第二部分L”。詳細而言,光源110所發出的部分光束L可被反射面163反射至折射面165,以構成光束L的第二部分L”。折射面165可將來自反射面163的光束L的第二部份L”折射至透光散熱模組120的導光部124,進而使燈具100H下半部發光。光源110所發出的另一部份的光束L可穿過反射面163,以構成光束L的第一部分L’。光束L的第一部分L’由透光燈罩132離開燈具100H,進而使燈具100H上半部發光。 FIG. 8 is a cross-sectional view of a lamp according to an embodiment of the present invention. Referring to Figure 8, the luminaire 100H is similar to the luminaire 100C, and thus the same elements are denoted by the same reference numerals. The main difference between the luminaire 100H and the luminaire 100C is that the light control element 160E of the luminaire 100H is an optical lens. The light control element 160E has a light incident surface 161 facing the light source 110, a reflective surface 163 with respect to the light incident surface 161, and a refractive surface 165 connecting the reflective surface 163 and the light incident surface 161. The reflecting surface 163 of the light control element 160E can separate the light beam L into the first portion L' of the light beam L and the second portion L" of the light beam L. In detail, the partial light beam L emitted by the light source 110 can be reflected by the reflecting surface 163 to The face 165 is refracted to form a second portion L" of the beam L. The refracting surface 165 can refract the second portion L" of the light beam L from the reflecting surface 163 to the light guiding portion 124 of the light-transmitting heat dissipation module 120, thereby causing the lower half of the luminaire 100H to emit light. The other portion of the light source 110 emits The portion of the light beam L can pass through the reflecting surface 163 to form a first portion L' of the light beam L. The first portion L' of the light beam L exits the luminaire 100H by the light-transmitting lamp cover 132, thereby causing the upper half of the luminaire 100H to emit light.

上述圖2至圖8的實施例中,導光部124的入光面124a皆可依需求具有如圖1朝遠離光軸X的方向d傾斜的設計,藉此可提高光束L的第二部分L”在導光部124全反射傳遞的量。 In the embodiment of FIG. 2 to FIG. 8 , the light incident surface 124 a of the light guiding portion 124 can have a design inclined as shown in FIG. 1 away from the optical axis X as needed, thereby improving the second portion of the light beam L. The amount of L" transmitted at the light guiding portion 124 is totally reflected.

綜上所述,本發明的燈具利用透光散熱模組可將光源發出的光束引導至其下半部出光,進而向四面八方發光。其中,藉由透光散熱模組的導光部添加有散熱粒子,可使透光散熱模組兼具導光與散熱的功效。藉由光源的發光面傾斜配置或增設控光元件,可使光源所發出的光束分離為行進方向相反的第一部分與第 二部份。藉由導光部的入光面傾斜配置,可提高光束的第二部分在導光部全反射傳遞的量。 In summary, the illuminating device of the present invention can guide the light beam emitted from the light source to the lower half to emit light, and then emit light in all directions. The light-transmitting heat-dissipating module has the function of guiding light and dissipating heat by adding heat-dissipating particles to the light-guiding portion of the light-transmitting heat-dissipating module. By arranging the light-emitting surface of the light source obliquely or adding a light-control element, the light beam emitted by the light source can be separated into the first part and the opposite direction of the traveling direction. Two parts. By the oblique arrangement of the light incident surface of the light guiding portion, the amount of total reflection of the second portion of the light beam in the light guiding portion can be increased.

雖然本發明已以實施例揭露如上,然其並非用以限定本發明,任何所屬技術領域中具有通常知識者,在不脫離本發明之精神和範圍內,當可作些許之更動與潤飾,故本發明之保護範圍當視後附之申請專利範圍所界定者為準。 Although the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art can make some modifications and refinements without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.

100A‧‧‧燈具 100A‧‧‧Lamps

110‧‧‧光源 110‧‧‧Light source

110a‧‧‧發光單元 110a‧‧‧Lighting unit

112‧‧‧承載基板 112‧‧‧Loading substrate

112a‧‧‧第一表面 112a‧‧‧ first surface

112b‧‧‧第二表面 112b‧‧‧ second surface

114‧‧‧發光元件 114‧‧‧Lighting elements

120‧‧‧透光散熱模組 120‧‧‧Lighting cooling module

122‧‧‧承載部 122‧‧‧Loading Department

124‧‧‧導光部 124‧‧‧Light Guide

124a‧‧‧入光面 124a‧‧‧Glossy

124b‧‧‧外表面 124b‧‧‧ outer surface

124c‧‧‧內表面 124c‧‧‧ inner surface

130‧‧‧透光燈罩 130‧‧‧Lighting lampshade

132‧‧‧頂部 132‧‧‧ top

140‧‧‧驅動元件 140‧‧‧Drive components

150‧‧‧燈頭 150‧‧‧ lamp holder

170‧‧‧套筒 170‧‧‧ sleeve

d‧‧‧方向 D‧‧‧ Direction

F‧‧‧參考平面 F‧‧‧ reference plane

L‧‧‧光束 L‧‧‧beam

L’‧‧‧第一部份 L’‧‧‧ first part

L”‧‧‧第二部份 L"‧‧‧ Part II

P‧‧‧粒子 P‧‧‧ particles

R‧‧‧空間 R‧‧‧ Space

X‧‧‧光軸 X‧‧‧ optical axis

θ‧‧‧銳角 Θ‧‧‧ acute angle

Claims (24)

一種燈具,具有一光軸,該燈具包括:一承載部;一透光燈罩,配置於該承載部的一第一側;一光源,用以發出一光束,該光源配置於該承載部與該透光燈罩之間,該光束的一第一部分的行進方向與該光束的一第二部分的行進方向相反,且該光束的該第一部分自該透光燈罩離開該燈具;以及一透光散熱模組,包括:一導光部,該導光部的至少一部分位於該承載部的一第二側,該承載部的該第一側與該第二側相對,該導光部具有一入光面、一外表面、一內表面與一光萃取結構,該內表面位於該外表面與該光軸之間,該光束的該第二部分經由該入光面進入該導光部而在該導光部中傳遞,且該光萃取結構使該光束的該第二部分沿著遠離該光軸的方向自該導光部的該外表面離開該燈具,該導光部將該光源所產生的熱導出。 A lamp having an optical axis, the lamp comprising: a bearing portion; a light-transmitting lamp cover disposed on a first side of the carrying portion; a light source for emitting a light beam, wherein the light source is disposed on the carrying portion Between the transparent light covers, a first portion of the light beam travels in a direction opposite to a second portion of the light beam, and the first portion of the light beam exits the light fixture from the light transmissive cover; and a light transmissive heat sink The group includes: a light guiding portion, at least a portion of the light guiding portion is located on a second side of the carrying portion, the first side of the carrying portion is opposite to the second side, and the light guiding portion has a light incident surface An outer surface, an inner surface and a light extraction structure, the inner surface being located between the outer surface and the optical axis, the second portion of the light beam entering the light guiding portion via the light incident surface at the light guiding Passing in the portion, and the light extraction structure causes the second portion of the light beam to exit the luminaire from the outer surface of the light guiding portion in a direction away from the optical axis, the light guiding portion deriving heat generated by the light source . 如申請專利範圍第1項所述的燈具,其中該導光部的該入光面朝遠離該光軸的方向傾斜。 The luminaire of claim 1, wherein the light incident surface of the light guiding portion is inclined away from the optical axis. 如申請專利範圍第2項所述的燈具,其中該導光部的該入光面與垂直於該光軸的一參考平面的夾角不大於45度且不小於30度。 The luminaire of claim 2, wherein an angle between the light incident surface of the light guiding portion and a reference plane perpendicular to the optical axis is no more than 45 degrees and not less than 30 degrees. 如申請專利範圍第1項所述的燈具,其中該光源包括多個發光單元,各發光單元的一發光面朝遠離該光軸的方向傾斜。 The luminaire of claim 1, wherein the light source comprises a plurality of light emitting units, and a light emitting surface of each of the light emitting units is inclined away from the optical axis. 如申請專利範圍第4項所述的燈具,其中各發光單元包括多個發光元件,每一發光單元具有相對的一第一發光面以及一第二發光面,該第一發光面位於該光軸與該第二發光面之間。 The luminaire of claim 4, wherein each of the illuminating units comprises a plurality of illuminating elements, each illuminating unit having a first illuminating surface and a second illuminating surface, wherein the first illuminating surface is located at the optical axis Between the second light emitting surface. 如申請專利範圍第5項所述的燈具,其中各發光單元包括一承載基板,該承載基板具有相對的一第一表面與一第二表面,部份的該些發光元件配置於該第一表面上,而另一部分的該些發光元件配置於該第二表面上。 The luminaire of claim 5, wherein each of the illuminating units comprises a carrier substrate having a first surface and a second surface, and the plurality of illuminating elements are disposed on the first surface And the other part of the light emitting elements are disposed on the second surface. 如申請專利範圍第4項所述的燈具,其中該些發光單元圍繞該光軸以環狀或放射狀排列。 The luminaire of claim 4, wherein the illuminating units are arranged in a ring shape or a radial shape around the optical axis. 如申請專利範圍第4項所述的燈具,其中每一發光單元的該承載基板為透光基板。 The luminaire of claim 4, wherein the carrier substrate of each of the light-emitting units is a light-transmitting substrate. 如申請專利範圍第1項所述的燈具,更包括:一控光元件,該光源配置於該控光元件與該承載部之間,而該光束經由該控光元件引導至該導光部。 The luminaire of claim 1, further comprising: a light control element disposed between the light control element and the carrying portion, and the light beam is guided to the light guiding portion via the light control element. 如申請專利範圍第9項所述的燈具,其中該控光元件為一光擴散元件,且該光擴散元件與該光源相隔一段距離。 The luminaire of claim 9, wherein the light control element is a light diffusing element, and the light diffusing element is spaced apart from the light source. 如申請專利範圍第9項所述的燈具,其中該控光元件為一導光板,該導光板具有面向該光源的一凸面,而該光束被該凸面引導至該導光部。 The luminaire of claim 9, wherein the light control element is a light guide plate having a convex surface facing the light source, and the light beam is guided to the light guide portion by the convex surface. 如申請專利範圍第11項所述的燈具,其中該凸面的曲率 半徑介於200毫米至350毫米。 The luminaire of claim 11, wherein the curvature of the convex surface The radius is between 200 mm and 350 mm. 如申請專利範圍第11項所述的燈具,其中該控光元件為一導光板,該導光板具有相對於該凸面的一凹面以及多個第一微結構,該凸面位於該凹面與該光源之間,該凹面位於該些第一微結構與該凸面之間,該些第一微結構將該光束引導至該透光燈罩的一頂部。 The luminaire of claim 11, wherein the light control element is a light guide plate having a concave surface with respect to the convex surface and a plurality of first microstructures, the convex surface being located at the concave surface and the light source The concave surface is located between the first microstructures and the convex surface, and the first microstructures guide the light beam to a top of the transparent light cover. 如申請專利範圍第9項所述的燈具,其中該控光元件為一導光板,該導光板包括一透光基板以及面向該光源且設置在該透光基板上的多個第二微結構,而該些第二微結構將來自該光源的該光束反射以構成該光束的該第二部分。 The luminaire of claim 9, wherein the light control element is a light guide plate, the light guide plate comprises a light transmissive substrate, and a plurality of second microstructures facing the light source and disposed on the light transmissive substrate, The second microstructures reflect the beam from the source to form the second portion of the beam. 如申請專利範圍第14項所述的燈具,其中該透光基板與該光軸垂直地配置。 The luminaire of claim 14, wherein the transparent substrate is disposed perpendicular to the optical axis. 如申請專利範圍第9項所述的燈具,其中該控光元件為一光學透鏡,該光學透鏡具有一反射面以將該光束分離成該光束的該第一部分與該光束的該第二部分。 The luminaire of claim 9, wherein the light control element is an optical lens having a reflective surface to separate the light beam into the first portion of the light beam and the second portion of the light beam. 如申請專利範圍第16項所述的燈具,其中該光學透鏡具有一入光面、該反射面以及連接該反射面與該入光面的一折射面,該反射面與該入光面相對,該光束被該反射面反射至該折射面,而該折射面將來自該反射面的該光束折射至該導光部。 The illuminating device of claim 16, wherein the optical lens has a light incident surface, the reflective surface, and a refractive surface connecting the reflective surface and the light incident surface, the reflective surface being opposite to the light incident surface, The light beam is reflected by the reflective surface to the refractive surface, and the refractive surface refracts the light beam from the reflective surface to the light guiding portion. 如申請專利範圍第1項所述的燈具,其中該光萃取結構位於該外表面的一粗糙表面。 The luminaire of claim 1, wherein the light extraction structure is located on a rough surface of the outer surface. 如申請專利範圍第1項所述的燈具,其中該導光部具有 多個散熱粒子,且該導光部的熱輻射率大於0.4。 The luminaire of claim 1, wherein the light guiding portion has a plurality of heat dissipating particles, and the light emissivity of the light guiding portion is greater than 0.4. 如申請專利範圍第1項所述的燈具,其中該光萃取結構位於該導光部內部,且該光萃取結構為多個光散射粒子。 The luminaire of claim 1, wherein the light extraction structure is located inside the light guiding portion, and the light extraction structure is a plurality of light scattering particles. 如申請專利範圍第1項所述的燈具,更包括一套筒,該導光部圍繞該套筒,且該套筒的光密度大於2。 The luminaire of claim 1, further comprising a sleeve, the light guiding portion surrounding the sleeve, and the optical density of the sleeve is greater than 2. 如申請專利範圍第21項所述的燈具,更包括與該光源電性連接的一驅動元件,而該驅動元件配置於該套筒中。 The luminaire of claim 21, further comprising a driving component electrically connected to the light source, wherein the driving component is disposed in the sleeve. 如申請專利範圍第1項所述的燈具,更包括一燈頭與一驅動元件,該驅動元件與該光源電性連接,該透光散熱模組位於該光源與該燈頭之間,且該燈頭、該透光散熱模組與該承載部相接而構成一空間,該驅動元件設置於該空間中。 The luminaire of claim 1, further comprising a lamp cap and a driving component, wherein the driving component is electrically connected to the light source, the transparent heat dissipating module is located between the light source and the lamp cap, and the lamp cap, The light-transmitting heat dissipation module is connected to the bearing portion to form a space, and the driving component is disposed in the space. 如申請專利範圍第1項所述的燈具,其中該導光部環繞該光軸而為一環狀結構。 The luminaire of claim 1, wherein the light guiding portion surrounds the optical axis and has a ring structure.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9982859B2 (en) 2016-09-08 2018-05-29 Advanced Optoelectronic Technology, Inc Light emitting diode, and headlamp and signal lamp having the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9982859B2 (en) 2016-09-08 2018-05-29 Advanced Optoelectronic Technology, Inc Light emitting diode, and headlamp and signal lamp having the same
TWI630342B (en) * 2016-09-08 2018-07-21 榮創能源科技股份有限公司 Light emitting diode bulb and headlamp module having the same

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