201229433 1 VV !\JOZ.rt\ 六、發明說明： 【發明所屬之技術領域】 本發明是有關於一種杯燈，且特別是有關於一種發光 二極體(Light Emitting Diode，LED)杯燈。 【先前技術】 在環保意識日益抬頭的今日，LED燈已逐漸受到重視 與並廣泛使用。LED燈具有發光效率高，且可直接發出有 φ 色可見光之優點。此外，LED燈更具有耗電量少，使用壽 命長之特色。 於某些LED燈的應用場合中，產生光束較為集中且 強度較強的光線是必要的。例如，當將LED燈應用於珠寶 展示時，即需要具有此種特性之LED燈，以使珠寶更顯得 光彩奪目。因此，如何產生上述之具有光束較為集中且強 度更強的LED燈，實乃業界所致力的課題之一。 【發明内容】 本發明係有關於一種發光二極體（Light Emitting Diode, LED)杯燈，具有光束較為集中且強度提高之優點。 根據本發明之第一方面，提出一種LED杯燈，包括 一座體、一 LED光源及一導光裝置。LED光源配置於座 體上。導光裝置則配置於LED光源上方。導光裝置具有一 導光區，導光區係面對LED光源。LED光源射出之光線 由導光區導引後，再由導光裝置之其他部份導引，以使 LED光源射出之光線向LED杯燈外部射去。 201229433 TW7082PA * ' 為了對本發明之上述及其他方面有更佳的瞭解，下文 特舉較佳實施例，並配合所附圖式’作詳細說明如下： 【實施方式】 第一實施例 請參照第1圖，其繪示乃依照本發明一第一實施例之 一種LED杯燈之示意圖。LED杯燈100包括一座體102、 一 LED光源104及一導光裝置106。LED光源104配置於 座體102上。導光裝置1〇6配置於LED光源104上方。導 光裝置106具有一導光區1〇8，導光區108係面對LED光 源104。LED光源1〇4射出之光線由導光區108導引後， 再由導光裝置106之其他部份導引，以使LED光源104 射出之光線向LED杯燈100外部射去。 於本實施例中，導光裝置106包括一透鏡106a及一 導光元件106b。導光元件l〇6b係鄰近透鏡106a配置。導 光元件106b係面對LED光源104。導光元件106b所在之 區域係定義出導光區。 如此，LED光源104射出之光線(例如是光線112與 114)由導光元件l〇6b反射後射向透鏡l〇6a’再由透鏡106a 導引，以使LED光源104射出之光線向LED杯燈100外 部射去。 透鏡106a例如具有一凹槽116。凹槽116具有一底面 110。導光元件1 〇6b係配置於底面11 〇。201229433 1 VV !\JOZ.rt\ VI. Description of the Invention: [Technical Field] The present invention relates to a cup lamp, and more particularly to a light emitting diode (LED) cup lamp. [Prior Art] Today, with the growing awareness of environmental protection, LED lights have gradually gained attention and are widely used. LED lamps have high luminous efficiency and can directly emit visible light with φ color. In addition, LED lights are characterized by low power consumption and long life. In some LED lamp applications, it is necessary to generate light with a concentrated beam and strong intensity. For example, when an LED lamp is applied to a jewelry display, an LED lamp having such characteristics is required to make the jewelry more dazzling. Therefore, how to produce the above-mentioned LED lamp having a relatively concentrated beam and a stronger intensity is one of the subjects of the industry. SUMMARY OF THE INVENTION The present invention relates to a light emitting diode (LED) cup lamp, which has the advantages of concentrated light beams and improved strength. According to a first aspect of the present invention, an LED cup lamp is provided comprising a body, an LED light source and a light guiding device. The LED light source is disposed on the body. The light guiding device is disposed above the LED light source. The light guiding device has a light guiding area, and the light guiding area faces the LED light source. The light emitted by the LED light source is guided by the light guiding area, and then guided by other parts of the light guiding device, so that the light emitted by the LED light source is emitted to the outside of the LED cup lamp. 201229433 TW7082PA * ' In order to better understand the above and other aspects of the present invention, the preferred embodiments are described below in detail with reference to the accompanying drawings. Figure is a schematic view of an LED cup lamp in accordance with a first embodiment of the present invention. The LED cup lamp 100 includes a body 102, an LED light source 104, and a light guiding device 106. The LED light source 104 is disposed on the base 102. The light guiding device 1〇6 is disposed above the LED light source 104. The light guiding device 106 has a light guiding area 1〇8, and the light guiding area 108 faces the LED light source 104. The light emitted by the LED light source 1〇4 is guided by the light guiding area 108, and then guided by other parts of the light guiding device 106, so that the light emitted from the LED light source 104 is emitted to the outside of the LED cup lamp 100. In this embodiment, the light guiding device 106 includes a lens 106a and a light guiding element 106b. The light guiding element 106b is disposed adjacent to the lens 106a. The light guiding element 106b faces the LED light source 104. The area in which the light guiding element 106b is located defines the light guiding area. Thus, the light emitted by the LED light source 104 (for example, the light rays 112 and 114) is reflected by the light guiding element 106b and then directed to the lens 106a' and guided by the lens 106a, so that the light emitted by the LED light source 104 is directed to the LED cup. The lamp 100 is shot outside. The lens 106a has, for example, a recess 116. The recess 116 has a bottom surface 110. The light guiding element 1 〇 6b is disposed on the bottom surface 11 〇.
請同時參照第2圖及第3圖，第2圖為第1圖之透鏡 106a與座體102之立體圖，而第3圖則為第1圖之LED 201229433 1 w /uozr/\ ' 杯燈100之部份立體圖。於本實施例中，底面110係一向 下突出之凹面，亦可為平面或凸面，而配置於底面110下 方之導光元件106b亦為向下突出之凹面結構，亦可為平 面或凸面。 如此一來，由第1圖可知，由LED光源104射出之 部份光線，例如是光線112與114，由導光元件106b反射 後，會射向透鏡l〇6a的側壁120，而於側壁120例如產生 全反射，而改變行進方向以射向LED杯燈100之外部。由 • 第1圖可以看出，光線112與144將有往中心線122靠近 之傾向，而使得光線可以往中心線122集中以增加中心線 122上之光束的強度。 請參照第4圖，其繪示一種不具導光元件之LED杯 燈400之示意圖。由第4圖可以看出，若不使用導光元件 的話，從LED光源404發出之光線將會有發散的情形。舉 例來說，從LED光源404發出之光線412與414射向透鏡 406a之底面410之後，會穿過底面410，並射向透鏡406a • 之上表面418，並直接射向透鏡406a之外部。由第4圖可 以看出，光線412與414係以遠離中心線422的方向前進， 而使得光線可以往中心線422集中的量降低，而使得中心 線422上之光束的強度減少。 請參照第5圖與第6圖，其中第5圖為第1圖之LED 杯燈100之角度與發光強度之關係曲線之一例，而第6圖 則為第4圖之L E D杯燈4 0 0之角度與發光強度之關係曲線 之一例。第5圖與第6圖之橫軸為偏離中心線之立體角的 角度，而縱轴為發光強度，單位為燭光(Candela，簡寫cd)。 201229433Please refer to FIG. 2 and FIG. 3 at the same time. FIG. 2 is a perspective view of the lens 106a and the base 102 of FIG. 1, and FIG. 3 is the LED of the first figure 201229433 1 w /uozr/\ 'cup lamp 100 Part of the perspective view. In this embodiment, the bottom surface 110 is a concave surface that protrudes downward, and may be a flat surface or a convex surface. The light guiding element 106b disposed under the bottom surface 110 also has a concave structure protruding downward, and may also be a flat surface or a convex surface. As such, it can be seen from FIG. 1 that part of the light emitted by the LED light source 104, for example, the light rays 112 and 114, is reflected by the light guiding element 106b, and is incident on the side wall 120 of the lens 106a, and on the side wall 120. For example, total reflection is generated and the direction of travel is changed to be directed to the outside of the LED cup lamp 100. As can be seen from Figure 1, the rays 112 and 144 will have a tendency to approach the centerline 122 such that light can be concentrated toward the centerline 122 to increase the intensity of the beam on the centerline 122. Referring to Figure 4, a schematic diagram of an LED cup lamp 400 without a light guiding element is shown. As can be seen from Fig. 4, if the light guiding element is not used, the light emitted from the LED light source 404 will be diverging. For example, light rays 412 and 414 from LED source 404 are directed toward bottom surface 410 of lens 406a, pass through bottom surface 410, and are directed toward lens 406a • upper surface 418 and directly onto the exterior of lens 406a. As can be seen from Fig. 4, rays 412 and 414 are advanced in a direction away from centerline 422 such that the amount of light that can be concentrated toward centerline 422 is reduced, thereby reducing the intensity of the beam on centerline 422. Please refer to FIG. 5 and FIG. 6 , wherein FIG. 5 is an example of the relationship between the angle of the LED cup lamp 100 and the luminous intensity of FIG. 1 , and FIG. 6 is the LED cup lamp of FIG. 4 . An example of the relationship between the angle and the luminous intensity. The horizontal axis of Figs. 5 and 6 is the angle of the solid angle from the center line, and the vertical axis is the luminous intensity in units of candle light (Candela, abbreviated cd). 201229433
TW7082PA I t. 由第5圖可以看出，第i圖之第一實施例的LED杯燈謂 的光束角度(Beam Angle)為22度（光束角度即半輝度視 角’半輝度視角等於1/2中心光強位置的角度，再乘以二）， 而光束之最大強度為1050燭光。而由第6圖可以看出， 第4圖之LED杯燈400的光束角度為26度，而光束之最 大強度為630燭光。由第5圖與第6圖可以看出，與第4 圖之LED杯燈400相較，使用導光元件1〇讣之第一實施 例的LED杯燈100確實可以達到讓光束更為集中，且具有 較大的光束強度的功效。 弟二實施例 凊參照第7圖，其繪示乃依照本發明一第二實施例之 一種LED杯燈之示意圖。與第—實施例不同的是，導光元 件106b係由導光膜706b所取代。 LED杯燈700包括一座體7〇2、一 led光源704及 一導光裝置706。LED光源704配置於座體702上。導光 裝置706配置於LED光源704上方。導光裝置706具有一 導光區708，不透光區708係面對LED光源704。LED光 源704射出之光線由導光區708導引後，再由導光裝置7〇6 之其他部份導引，以使LED光源704射出之光線向LED 杯燈700外部射去。 於本實施例中，導光裝置706包括一透鏡706a及一 導光膜706b。導光膜706b係鄰近透鏡706a配置。導光膜 706b係面對LED光源704。導光膜706b所在之區域係定 義出導光區708。導光膜706b例如係以塗佈（Coating)的方 201229433 1 VV / \JO^.r /Λ 1 式形成於透鏡704上。導光膜706b之材質例如為可以讓 光線反射之材質，例如為金屬。LED光源704射出之光線 由導光膜706b反射後射向透鏡706a，再由透鏡706a導 引’以使LED光源704射出之光線向LED杯燈700外部 射去。 舉例來說’LED光源704射出之光線係由導光膜706b 反射後射向透鏡706a之側面720,並經由側面720全反射 後射向LED杯燈700之外部。 # 同樣地，透鏡704例如具有一凹槽716，亦可為平面 或凸面’凹槽716具有一底面71〇。導光膜7〇6b係配置於 底面710。底面710例如係一向下突出之凹面，亦可為平 面或凸面。 本實施例同樣的能達到與第一實施例相同之可讓光 束更為集中，且具有較大的光束強度的優點。 綜上所述，雖然本發明已以較佳實施例揭露如上，然 其並非用以限定本發明。本發明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内，當可作各種之 更動與潤飾。因此’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。 【圖式簡單說明】TW7082PA I t. As can be seen from Fig. 5, the LED cup lamp of the first embodiment of Fig. i has a Beam Angle of 22 degrees (the beam angle is a half-luminance angle of view - the half-luminance angle is equal to 1/2) The angle of the central intensity position is multiplied by two), and the maximum intensity of the beam is 1050 candelas. As can be seen from Fig. 6, the LED cup lamp 400 of Fig. 4 has a beam angle of 26 degrees and the beam has a maximum intensity of 630 candelas. As can be seen from FIGS. 5 and 6, the LED cup lamp 100 of the first embodiment using the light guiding element 1 can achieve a more concentrated beam, compared to the LED cup lamp 400 of FIG. And has the effect of a large beam intensity. Second Embodiment FIG. 7 is a schematic view showing an LED cup lamp according to a second embodiment of the present invention. Unlike the first embodiment, the light guiding element 106b is replaced by the light guiding film 706b. The LED cup lamp 700 includes a body 7〇2, a led light source 704, and a light guiding device 706. The LED light source 704 is disposed on the base 702. The light guiding device 706 is disposed above the LED light source 704. The light guiding device 706 has a light guiding region 708, and the opaque region 708 faces the LED light source 704. The light emitted by the LED light source 704 is guided by the light guiding region 708, and then guided by the other portions of the light guiding device 7〇6, so that the light emitted from the LED light source 704 is emitted to the outside of the LED cup lamp 700. In the embodiment, the light guiding device 706 includes a lens 706a and a light guiding film 706b. The light guiding film 706b is disposed adjacent to the lens 706a. The light guiding film 706b faces the LED light source 704. The light guiding region 708 is defined in the region where the light guiding film 706b is located. The light guiding film 706b is formed on the lens 704 by, for example, a coating method 201229433 1 VV / \JO^.r / Λ 1 . The material of the light guiding film 706b is, for example, a material that can reflect light, and is, for example, a metal. The light emitted from the LED light source 704 is reflected by the light guiding film 706b and directed to the lens 706a, and is guided by the lens 706a to cause the light emitted from the LED light source 704 to be emitted to the outside of the LED cup lamp 700. For example, the light emitted by the LED light source 704 is reflected by the light guiding film 706b and then directed toward the side 720 of the lens 706a, and is totally reflected by the side surface 720 and then directed to the outside of the LED cup lamp 700. # Similarly, the lens 704 has, for example, a recess 716, which may also be a planar or convex surface. The recess 716 has a bottom surface 71〇. The light guiding film 7〇6b is disposed on the bottom surface 710. The bottom surface 710 is, for example, a concave surface that protrudes downward, and may be a flat surface or a convex surface. This embodiment can also achieve the same advantages as the first embodiment in that the light beam is more concentrated and has a larger beam intensity. In the above, the present invention has been disclosed in the above preferred embodiments, but it is not intended to limit the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims. [Simple description of the map]
第」圖綠不乃依照本發明-第-實施例之--種LED 杯燈之不意圖。 第2圖為第1圖之透鏡與座體之立體圖。 帛3圖則為第1圖<led杯燈之部份立體圖。 201229433 TW7082PA ' * 第4圖繪示一種不具導光元件之LED杯燈之示意圖。 第5圖為第1圖之LED杯燈之角度與發光強度之關 係曲線之一例。 第6圖則為第4圖之LED杯燈之角度與發光強度之 關係曲線之一例。 第7圖繪示乃依照本發明一第二實施例之一種LED 杯燈之示意圖。 【主要元件符號說明】 100、400、700 : LED 杯燈 102、702 :座體 104、404、704 : LED 光源 106、706 :導光裝置 106a、406a、706a :透鏡 106b、706b :導光元件 108、708 :導光區 110、410、710 :底面 112、114、412、414 :光線 116、416、716 :凹槽 120、720 :側壁 122、422 :中心線The first figure is not intended to be an LED cup lamp in accordance with the present invention - the first embodiment. Fig. 2 is a perspective view of the lens and the seat of Fig. 1. The 帛3 plan is a partial perspective view of the first figure <led cup lamp. 201229433 TW7082PA ' * Figure 4 shows a schematic diagram of an LED cup lamp without a light guiding element. Fig. 5 is an example of the relationship between the angle of the LED cup lamp and the luminous intensity in Fig. 1. Fig. 6 is an example of the relationship between the angle of the LED cup lamp and the luminous intensity in Fig. 4. FIG. 7 is a schematic view showing an LED cup lamp according to a second embodiment of the present invention. [Description of main component symbols] 100, 400, 700: LED cup lamps 102, 702: bases 104, 404, 704: LED light sources 106, 706: light guiding devices 106a, 406a, 706a: lenses 106b, 706b: light guiding elements 108, 708: light guiding regions 110, 410, 710: bottom surfaces 112, 114, 412, 414: light rays 116, 416, 716: grooves 120, 720: side walls 122, 422: center line