TWI476349B - Light guiding element and illuminant device using the same - Google Patents
Light guiding element and illuminant device using the same Download PDFInfo
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- TWI476349B TWI476349B TW097131197A TW97131197A TWI476349B TW I476349 B TWI476349 B TW I476349B TW 097131197 A TW097131197 A TW 097131197A TW 97131197 A TW97131197 A TW 97131197A TW I476349 B TWI476349 B TW I476349B
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- wall
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- light guide
- mounting
- guide body
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Description
本發明涉及一種導光體及具有該導光體之光源裝置。 The present invention relates to a light guide and a light source device having the same.
隨著電子科技之發展,行動電話、數碼相機及個人數位助理(Personal Digital Assistant,PDA)等可攜式電子裝置已成為人們生產與生活之必需品。 With the development of electronic technology, portable electronic devices such as mobile phones, digital cameras and personal digital assistants (PDAs) have become a necessity for people's production and life.
目前,對可攜式電子裝置之狀態(比如,來電)起指示作用之光源裝置,作為人機界面之重要組成部分越來越受到重視,對光源裝置之要求也隨之提高,在滿足其基本功能之前提下,需不斷提高其穩定性,可靠性和美觀性。光源裝置一般由導光體及發光元件組成,由發光元件實現對導光體之照明。然而,由於受到自身體積之限制,一般可攜式電子裝置內無法安裝結構較複雜之導光體,進而可能影響光源裝置應用於可攜式電子裝置時之發光效果。 At present, the light source device that indicates the state of the portable electronic device (for example, an incoming call) has been paid more and more attention as an important component of the human-machine interface, and the requirements for the light source device are also improved, and the basic requirements are satisfied. Before the function is lifted, it is necessary to continuously improve its stability, reliability and aesthetics. The light source device generally consists of a light guide and a light-emitting element, and the light-emitting element illuminates the light guide. However, due to limitations of its own size, a generally complicated light guide body cannot be installed in the portable electronic device, which may affect the light-emitting effect of the light source device when it is applied to the portable electronic device.
有鑒於此,有必要提供一種體積較小且導光效果較佳之導光體。 In view of this, it is necessary to provide a light guide body which is small in size and has a good light guiding effect.
另外,還有必要提供一種應用上述導光體之光源裝置。 In addition, it is also necessary to provide a light source device to which the above-described light guide body is applied.
一種導光體,該導光體為一環狀體,其包括一側壁、一安裝壁及 一與該安裝壁相背之出射壁,該安裝壁與該出射壁由該側壁連接,該側壁內形成有複數第一斜壁。 a light guiding body, the light guiding body is an annular body, comprising a side wall, a mounting wall and An exit wall opposite to the mounting wall, the mounting wall and the exit wall are connected by the side wall, and a plurality of first inclined walls are formed in the side wall.
一種光源裝置,其包括一導光體及複數光源,該導光體為一環狀體,其包括一側壁、一用於安裝所述光源之安裝壁及一與該安裝壁相背之出射壁,該安裝壁與該出射壁由該側壁連接,該側壁內形成有複數第一斜壁。 A light source device includes a light guide body and a plurality of light sources, the light guide body is an annular body, and includes a side wall, a mounting wall for mounting the light source, and an exit wall opposite to the mounting wall The mounting wall and the exit wall are connected by the side wall, and a plurality of first inclined walls are formed in the side wall.
相較於現有技術,所述光源裝置藉由所述第一斜壁使所述光源之光傳播範圍擴大,從而可用較小之體積和簡單之結構獲得較佳之發光效果。 Compared with the prior art, the light source device expands the light propagation range of the light source by the first inclined wall, so that a better light-emitting effect can be obtained with a smaller volume and a simple structure.
100‧‧‧光源裝置 100‧‧‧Light source device
10‧‧‧光源 10‧‧‧Light source
20‧‧‧導光體 20‧‧‧Light guide
22‧‧‧側壁 22‧‧‧ side wall
222‧‧‧缺口 222‧‧ ‧ gap
224‧‧‧頂角 224‧‧‧Top corner
226‧‧‧第一斜壁 226‧‧‧ first slant wall
24‧‧‧安裝壁 24‧‧‧Installation wall
242‧‧‧入射部 242‧‧‧Injection
244‧‧‧階梯 244‧‧‧ ladder
2442‧‧‧台階 2442‧‧‧ steps
2444‧‧‧第二斜壁 2444‧‧‧Second inclined wall
26‧‧‧出射壁 26‧‧‧Exit wall
圖1係本發明較佳實施例之光源裝置之立體分解圖;圖2係圖1所示之光源裝置另一角度之立體分解圖;圖3係將圖1所示之光源裝置組裝於一起,且光在光源裝置內傳播時之光路示意圖。 1 is a perspective exploded view of a light source device according to a preferred embodiment of the present invention; FIG. 2 is an exploded perspective view of the light source device of FIG. 1; FIG. 3 is a view of the light source device shown in FIG. And a schematic diagram of the optical path when light propagates within the light source device.
本發明具有導光體之光源裝置可應用於行動電話、數碼相機及個人數位助理(Personal Digital Assistant,PDA)等可攜式電子裝置,在本實施例中,以行動電話為例加以說明。 The light source device with a light guide of the present invention can be applied to a portable electronic device such as a mobile phone, a digital camera, and a personal digital assistant (PDA). In this embodiment, a mobile phone is taken as an example for description.
請參閱圖1及圖2,本發明之光源裝置100包括二光源10及一導光體20。所述光源10與該導光體20相對準。 Referring to FIG. 1 and FIG. 2 , the light source device 100 of the present invention includes two light sources 10 and a light guide 20 . The light source 10 is aligned with the light guide body 20.
所述光源10在本實施例中為發光二極體(Light Emitting Diode,LED),其用於發出光線。該光源10裝設且電連接於該行動電話之電路板(圖未示)上。 In this embodiment, the light source 10 is a Light Emitting Diode (LED) for emitting light. The light source 10 is mounted and electrically connected to a circuit board (not shown) of the mobile phone.
該導光體20大致呈一環狀,其包括一環形之側壁22、一朝向所述光源10之安裝壁24及一與該安裝壁24相背之出射壁26。該安裝壁24與該出射壁26由該側壁22連接。 The light guide body 20 has a substantially annular shape and includes an annular side wall 22, a mounting wall 24 facing the light source 10, and an exit wall 26 opposite the mounting wall 24. The mounting wall 24 and the exit wall 26 are connected by the side wall 22.
該側壁22內對稱開設二大致呈三角形之缺口222,所述缺口222與所述光源10對應設置。所述缺口222朝向該安裝壁24之一側為該三角形之一頂角224,從而於該側壁22內形成二朝向該出射壁26之第一斜壁226。所述第一斜壁226與該安裝壁24所成之夾角,應使該光源10射出之光線經由所述第一斜壁226反射後,光線傳播之路徑與該安裝壁24大致平行。 A substantially triangular notch 222 is defined in the sidewall 22, and the notch 222 is disposed corresponding to the light source 10. The notch 222 faces the one side of the mounting wall 24 as an apex angle 224 of the triangle, so that a first inclined wall 226 facing the exit wall 26 is formed in the side wall 22 . The angle between the first inclined wall 226 and the mounting wall 24 is such that the light emitted by the light source 10 is reflected by the first inclined wall 226, and the path of the light propagation is substantially parallel to the mounting wall 24.
該安裝壁24上對稱凸設二方形之入射部242,所述入射部242與所述缺口222對應設置。所述入射部242朝向所述光源10之方向安裝以使得所述光源10發出之光經由所述入射部242傳向該側壁22內。 A rectangular incident portion 242 is symmetrically protruded from the mounting wall 24, and the incident portion 242 is disposed corresponding to the notch 222. The incident portion 242 is mounted in a direction toward the light source 10 such that light emitted by the light source 10 is transmitted into the sidewall 22 via the incident portion 242.
於該安裝壁24上對稱開設有二組階梯244,所述階梯244位於所述入射部242之間。每一階梯244由複數與該安裝壁24及該出射壁26平行之台階2442組成,且相鄰台階2442由一第二斜壁2444連接。所述台階2442與該出射壁26之距離由所述階梯244之兩端逐漸向所述階梯244之中部減小,從而使所述階梯244整體上大致為一“V”形。該第二斜壁2444與該安裝壁24之間之夾角A大致為45度,如此,由於由該第一斜壁226傳來之光線大致與該安裝壁24平行,因而再經由該第二斜壁2444反射後,均將垂直射向該出射壁26。 Two sets of steps 244 are symmetrically opened on the mounting wall 24, and the steps 244 are located between the incident portions 242. Each step 244 is composed of a plurality of steps 2442 parallel to the mounting wall 24 and the exit wall 26, and adjacent steps 2442 are connected by a second inclined wall 2444. The distance between the step 2442 and the exit wall 26 is gradually reduced from the ends of the step 244 toward the middle of the step 244, so that the step 244 is substantially a "V" shape as a whole. The angle A between the second inclined wall 2444 and the mounting wall 24 is substantially 45 degrees. Thus, since the light transmitted from the first inclined wall 226 is substantially parallel to the mounting wall 24, the second oblique is further After the wall 2444 is reflected, it will be directed perpendicular to the exit wall 26.
請參閱圖3,使用時,所述光源10發出之光經由該入射部242之傳導進入該側壁22內;然後到達所述第一斜壁226處,此時,一部 分光藉由所述第一斜壁226之反射以平行於該安裝壁24之方向於該側壁22內繼續傳播,另一部分光穿過該第一斜壁226而射入該缺口222內;由該第一斜壁226反射之光經由該第二斜壁2444之反射後以垂直於該出射壁26之方向,由該第二斜壁2444對應之出射壁26射出;射入該缺口222內之光由該缺口222對應之出射壁26射出。 Referring to FIG. 3, in use, the light emitted by the light source 10 is conducted into the sidewall 22 through the incident portion 242; then reaches the first oblique wall 226, at this time, a portion The splitting light continues to propagate in the side wall 22 by the reflection of the first inclined wall 226 in a direction parallel to the mounting wall 24, and another part of the light passes through the first inclined wall 226 and enters the notch 222; The light reflected by the first inclined wall 226 is reflected by the second inclined wall 2444, and is emitted from the exit wall 26 corresponding to the second inclined wall 2444 in a direction perpendicular to the exit wall 26; the light incident into the notch 222 The exit wall 26 corresponding to the notch 222 is emitted.
所述光源裝置100於其導光體20內開設所述第一斜壁226及所述第二斜壁2444,所述光源10發出之光之一部分經由該第一斜壁226之反射而到達所述第二斜壁2444處,再經由該第二斜壁2444之反射而使光由所述階梯244對應之出射壁26射出,所述光源10發出之光之另一部分穿過該第一斜壁226,而由所述第一斜壁226對應之出射壁26射出,如此,藉由所述第一斜壁226與所述第二斜壁2444之配合使所述光源10之光傳播範圍擴大,提高所述光源10之效率,從而可用較小之體積及簡單之結構獲得較佳之發光效果。 The light source device 100 defines the first inclined wall 226 and the second inclined wall 2444 in the light guide body 20, and a part of the light emitted by the light source 10 is reflected by the first inclined wall 226 to reach the location. At the second inclined wall 2444, the light is emitted from the exit wall 26 corresponding to the step 244 through the reflection of the second inclined wall 2444, and another part of the light emitted by the light source 10 passes through the first inclined wall. 226, and the exit wall 26 corresponding to the first inclined wall 226 is emitted, so that the light propagation range of the light source 10 is expanded by the cooperation of the first inclined wall 226 and the second inclined wall 2444. The efficiency of the light source 10 is increased so that a better illuminating effect can be obtained with a smaller volume and a simple structure.
綜上所述,本發明符合發明專利要件,爰依法提出專利申請。惟,以上所述者僅為本發明之較佳實施例,本發明之範圍並不以上述實施例為限,舉凡熟悉本案技藝之人士援依本發明之精神所作之等效修飾或變化,皆應涵蓋於以下申請專利範圍內。 In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and equivalent modifications or variations made by those skilled in the art in light of the spirit of the present invention are It should be covered by the following patent application.
100‧‧‧光源裝置 100‧‧‧Light source device
10‧‧‧光源 10‧‧‧Light source
20‧‧‧導光體 20‧‧‧Light guide
22‧‧‧側壁 22‧‧‧ side wall
222‧‧‧缺口 222‧‧ ‧ gap
224‧‧‧頂角 224‧‧‧Top corner
226‧‧‧第一斜壁 226‧‧‧ first slant wall
24‧‧‧安裝壁 24‧‧‧Installation wall
242‧‧‧入射部 242‧‧‧Injection
244‧‧‧階梯 244‧‧‧ ladder
2442‧‧‧台階 2442‧‧‧ steps
2444‧‧‧第二斜壁 2444‧‧‧Second inclined wall
26‧‧‧出射壁 26‧‧‧Exit wall
Claims (11)
Priority Applications (1)
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TW097131197A TWI476349B (en) | 2008-08-15 | 2008-08-15 | Light guiding element and illuminant device using the same |
Applications Claiming Priority (1)
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TW097131197A TWI476349B (en) | 2008-08-15 | 2008-08-15 | Light guiding element and illuminant device using the same |
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TW201007089A TW201007089A (en) | 2010-02-16 |
TWI476349B true TWI476349B (en) | 2015-03-11 |
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TW097131197A TWI476349B (en) | 2008-08-15 | 2008-08-15 | Light guiding element and illuminant device using the same |
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Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6880945B2 (en) * | 2001-08-01 | 2005-04-19 | Hella Kg Huech & Co. | Lamp for vehicles |
TW200825332A (en) * | 2006-12-15 | 2008-06-16 | Hon Hai Prec Ind Co Ltd | Machine for guiding light averagely |
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2008
- 2008-08-15 TW TW097131197A patent/TWI476349B/en not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6880945B2 (en) * | 2001-08-01 | 2005-04-19 | Hella Kg Huech & Co. | Lamp for vehicles |
TW200825332A (en) * | 2006-12-15 | 2008-06-16 | Hon Hai Prec Ind Co Ltd | Machine for guiding light averagely |
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TW201007089A (en) | 2010-02-16 |
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