TWI281971B - A reflective LED head light - Google Patents

A reflective LED head light Download PDF

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Publication number
TWI281971B
TWI281971B TW94117610A TW94117610A TWI281971B TW I281971 B TWI281971 B TW I281971B TW 94117610 A TW94117610 A TW 94117610A TW 94117610 A TW94117610 A TW 94117610A TW I281971 B TWI281971 B TW I281971B
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TW
Taiwan
Prior art keywords
led
light
reflective
light source
reflector
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TW94117610A
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Chinese (zh)
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TW200641293A (en
Inventor
R-Tau Shiu
Wen-Liang Wang
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Automotive Res & Testing Ct
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Publication of TWI281971B publication Critical patent/TWI281971B/en

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Abstract

This invention relates to a reflective LED head light. It consists of multiple point LED lights. For each point LED, it beams the light backward to a reflective cap with diamond-like reflection surfaces. After reflection, all LED light is beamed toward an opener in the front end and thus raising the output efficiency of the light. The light form can also be adjusted by adjusting the curvatures, areas and arrangement of those diamond-like reflection surfaces. The design simplifies the over all structure of the head light and reduces the manufacturing cost.

Description

1281971 九、發明說明: 【發明所屬之技術領域】 本發明係關於一種LED車燈,尤指一種可調整照明光 色的LED車4 ’令車燈具有頭燈、霧燈、方向燈或刹車燈 專功能。 【先前技術】 目刖led因為具有高亮度、省電、體積小等優點,被 廣泛地應用在燈具上作為照明光源,近來可發現車燈中的 毛垃方向燈、剎車燈等均採用LED作為光源的設計。 、由於尾燈、刹車燈的體積較大,故需要較多LED點光 源:以吊見的LED點光源來說,不外乎採用反射式設計, 如第七圖所不’為-點光源(5 0 )#結構示意圖,其主 要包含有: 、…一反射罩(5 1 ),其内層為一反射材質,用以反射 —一 LED光源(5 2 ),係固定在反射罩(5丄)上, 藉由反射罩(5 1 )將光線集中向前射出;及 -刖罩(5 3 ),係蓋合於該反射罩(5丄)前端開 =,其可依照該車燈所欲產生出光光形,調整使用凸透鏡、 半凸透鏡或平面透鏡等。 ^誠如點光源设計說明,均是將LED光源(5 2 )的發 光面設置向前’使得光源可向前I ( 5 3 )方向發射,: 知側光再由反射罩(5 1 )予以反射後向前射出,惟,該 光線的強度係因部份光線經反射I(51)反射後向前發 1281971 -射,故該車燈的光線強度較低。 由於頭燈的設計需要控制其出光光形,故目前L肋 燈應用在頭燈的產品較少見,而曾有廠商提出以目1 [肋 尾燈的設計,改良設計為頭燈結構。由於咖·點光=的出 光光形相同,因此要直接控制LED點光源發出符 定的出光光形相當困難,是以,如第八圖所示,;將複數 ⑽點光源(50)排列成—矩陣形狀,再於該點光源㈠ 〇 )出光面的下方放置一遮片(6 〇 ),、查μ政 ' w 、〇 u ) 達到修正該顔燈 的出光光形的目的,以符合相關法規規定。 雖然,此-頭燈可藉由遮片的使用滿足規定,但 上即會因遮片的增加而提高設計及製作成本。 【發明内容】 :本^ ^的主要發明目的即提供-種反射式LED < 八间出先效率,適用於頭燈或霧燈的 0又叶〇 •述目的所使用的主要技術手段係令該反射式 LE車燈由複數反射式LED點光源組成,其中豸⑽點光 源係主要设計一個且古應γ ,, ,、有鑽石曲面的反射罩’並將一 LED光 曲'1二反射罩上’令其發光面係面對該反射罩的鑽石 再㈣反射罩前端開口蓋合—個反如此, 备LED光源發射光線 合入 折射後向前端開口發射,::向後集中由鑽石曲面統一 射 k升出光效率,由於全部的光 源均由鑽石曲線折射德 而沾A玄/ 吏射出’故本發明可藉由改變鑽石曲 面的曲率/面積/描 方式’調整出光光形,是以,當本 4 1281971 發明應用於如頭燈有規範其 藉由鑽石曲線的設計,令出 其它光形修正輔助結構,有 作成本。 出光光形的車燈製作時,即能 光光形滿足相關規定,而免除 助於簡化整體車燈的結構及製 【實施方式】 首先叫參閱第一圖及第-岡辦+ j么也 ^ , Ί n 口及弟一圖所不,係為一反射式點光 你C 1 0 )的一較佳實施例,其包含有·· 反射罩(1 1 ),其後面形成一弧形反射部(1 1 1 ),該弧形反射部(i i #内面係形成為一鑽石曲 面(112),如第四圖所示,該鑽石曲面(工13)係 依照車燈規定光形,設計其曲面的曲率、面積及排列方式; 一 led光源(丄2 ),係固定在反射罩(丄丄)上, 而其發光面係面對該反射罩(JL工)的後弧形反射部(工 11),其主要包含有一定位座(121)及一個LED元 件(1 2 2 ),該LED元件(1 2 2 )係固定在該定位座 (121)上,再由定位座(121)固定在反射罩( 1 )上;及 一燈罩(1 3 ),係蓋合於該反射罩(i丄)的前端 開口(113) 。 ^ 請參閱第三圖所示,係為上述點光源(1 〇 )組合後 的部份側剖面圖,由此圖可知,由於LED光源(1 2 )的 發光面直接朝向弧形反射部(1 1 )的鑽石曲面(1 1 2 ), 故該LED光源(1 2 )的全部光線會集中射向鑽石曲面(工 12),再由鑽石曲面(112)將全部光源一次反射向 1281971 刖端燈罩(1 3 )發射,使得出光效率提升。 再如第四圖所示,係兔丨p 1糸為LED ^原(1 2 )與弧形反射 部(111)鑽石曲面(1 Ί 沾、击 , 少 (112)的連結關係,該鑽石曲 面(1 1 2 )係依照頭燈遠燈規定光形而設計,該右下 係係形成三道斜設曲面(A / R Γ、 k A/ B / C ),以修正發射光源 的光形(如附件所示),如此,即可免除使用的遮片結構: 整體車燈結構更加簡化,有助於簡化加工程序及縮減製作 成本。1281971 IX. Description of the invention: [Technical field of the invention] The present invention relates to an LED lamp, in particular to an LED car 4' that can adjust the illumination color, and has a headlight, a fog lamp, a direction lamp or a brake. Light-specific features. [Prior Art] Because it has the advantages of high brightness, power saving, small size, etc., it has been widely used as a lighting source in lamps. Recently, it has been found that LEDs in the headlights and brake lamps in the lamps are used as LEDs. The design of the light source. Due to the large size of the taillights and brake lights, more LED point light sources are needed: for the LED point light source to be seen by the eye, it is nothing more than a reflective design, as shown in the seventh figure. 5 0 ) #结构 Schematic, which mainly includes: , ... a reflector (5 1 ), the inner layer is a reflective material for reflection - an LED light source (5 2 ), is fixed in the reflector (5 丄) The light is concentrated forward by the reflector (5 1 ); and the cover (5 3 ) is closed to the front end of the reflector (5丄), which can be generated according to the lamp The light beam shape is adjusted using a convex lens, a semi-convex lens, or a planar lens. ^ As the point source design, the light source of the LED light source (52) is set forward so that the light source can be emitted in the forward I (5 3 ) direction: the side light is reflected by the reflector (5 1 ) It is reflected and then emitted forward. However, the intensity of the light is reflected by the reflection I(51) and then sent to the front to send 1281971-shot, so the light intensity of the lamp is low. Since the design of the headlights needs to control the light pattern of the headlights, the products of the L-rib lamps used in the headlights are less common, and some manufacturers have proposed the design of the ribbed taillights, and the improved design is the headlight structure. Since the light-emitting light of the coffee and the spot light is the same, it is quite difficult to directly control the light-emitting shape of the LED point light source, so that, as shown in the eighth figure, the plurality of (10) point light sources (50) are arranged. - the shape of the matrix, and then placed a mask (6 〇) under the light-emitting surface of the point (1) 〇), and check the shape of the light-emitting light of the light to meet the relevant Regulations. Although the headlamp can be used by the use of the matte, the design and manufacturing cost will be increased due to the increase of the matte. SUMMARY OF THE INVENTION: The main object of the present invention is to provide a reflective LED < eight initial efficiency, suitable for headlights or fog lamps, and the main technical means used for the purpose The reflective LE lamp consists of a plurality of reflective LED point sources, of which the 豸(10) point source is mainly designed with an ancient γ, , , and a curved reflector with a diamond surface and an LED light-curvature '1 two reflector On the upper side of the 'lighting surface of the diamond facing the reflector, and then the front end opening of the reflector is closed. The LED light source emits light into the refraction and then emits toward the front end opening:: Backward concentrated by the diamond surface k rises out of light efficiency, since all the light sources are refracted by the diamond curve and the A Xuan/吏 is emitted, so the invention can adjust the light shape by changing the curvature/area/drawing method of the diamond surface. 4 1281971 The invention is applied to the design of a headlight, such as a diamond curve, to make other light shape correction auxiliary structures costly. When the light-emitting lights are produced, the light and light shape can meet the relevant regulations, and the structure and system for simplifying the overall lamp are eliminated. [First embodiment] First, refer to the first figure and the A preferred embodiment of a reflective spot light C 1 0 ) includes a reflective cover (1 1 ) with a curved reflecting portion formed behind it. (1 1 1 ), the curved reflecting portion (ii # inner surface is formed as a diamond curved surface (112), as shown in the fourth figure, the diamond curved surface (work 13) is designed according to the light shape of the vehicle lamp, and the curved surface is designed Curvature, area and arrangement; a led light source (丄2) is fixed on the reflector (丄丄), and its light-emitting surface faces the rear curved reflector of the reflector (JL) ), which mainly comprises a positioning seat (121) and an LED element (1 2 2 ), the LED element (1 2 2 ) is fixed on the positioning seat (121), and then fixed by the positioning seat (121) in the reflection A cover (1); and a lamp cover (13) are attached to the front end opening (113) of the reflector (i). ^ See the third figure, It is a partial side cross-sectional view of the above-mentioned point source (1 〇), and it can be seen from the figure that the light-emitting surface of the LED light source (1 2 ) directly faces the diamond curved surface of the curved reflecting portion (1 1 ) (1 1 2 Therefore, all the light of the LED light source (1 2 ) will be concentrated toward the diamond surface (work 12), and then all the light sources will be reflected by the diamond curved surface (112) to the 1281971 灯 end lamp cover (1 3 ), so that the light output efficiency As shown in the fourth figure, the rabbit 丨p 1糸 is the connection between the LED ^ original (1 2 ) and the curved reflector (111) diamond surface (1 沾 、, 击, 少 (112), The diamond curved surface (1 1 2 ) is designed according to the specified light shape of the headlights. The lower right system forms three oblique curved surfaces (A / R Γ, k A/ B / C) to correct the light of the emitted light source. Shape (as shown in the attachment), so that the use of the matte structure is eliminated: The overall lamp structure is more simplified, which helps to simplify the processing procedure and reduce the production cost.

再請參閱五圖所示,係為本發明點光源(i 〇 )祖入 成的一反射式車燈(2〇),即將上述點光源(10); 聚成排列-起’即可構成一大尺寸的頭燈(3〇)設計, 配合第六圖所示’由於各個反射式點光源(ι〇)的光線 光形已符合㈣(30)光形規定,於本實施例中,只要 配合適當的排列方式,即能輕易控制所有點光源(i 〇 ) 點亮時,其出光光形能夠符合頭燈光形規定。 l "兒月可知,本發明設計一種易於製作頭燈的反 射式點光源,相較於—般反射式LED燈,其結構更形簡化, 姐具有更佳的出光效率,有助於LED頭燈的實體化的發展。 【圖式簡單說明】 第圖係本發明led點光源一較佳實例的後視分解 立體圖。 第一圖·係第一圖的組合外觀圖。 第二圖·係第二圖的部份側剖面圖。 第四圖·係本發明LED光源及弧形反射部的結構示意 6 S) 1281971 圖 第五圖:係本發明LED車燈的立體外觀圖。 第六圖:係第五圖實際製作成一汽車頭燈的示意圖。 第七圖··係既有反射式LED點光源的側剖圖。 第八圖:係既有反射式頭燈的結構示意圖。 附 件:係符合國内法規之頭燈出光光形圖案。 【主要元件符號說明】 (1 0 )點光源 (1 1 )反射罩Referring to the five figures, it is a reflective light (2〇) of the point light source (i 〇) of the present invention, that is, the point light source (10); Large-size headlights (3〇) design, as shown in the sixth figure, 'Because the light patterns of the various reflective point sources (ι〇) have met the (4) (30) light shape, in this embodiment, as long as the Appropriate arrangement means that all point sources (i 〇) can be easily controlled, and their light patterns can conform to the headlight shape. l "Children know that the present invention is designed to be a reflective point light source that is easy to manufacture headlights. Compared with the general reflective LED lamp, the structure is more simplified, and the sister has better light-emitting efficiency, which contributes to the LED head. The development of the materialization of the lamp. BRIEF DESCRIPTION OF THE DRAWINGS The figure is a rear perspective exploded perspective view of a preferred embodiment of the LED spot light source of the present invention. The first picture is the combined appearance of the first picture. The second figure is a partial side cross-sectional view of the second figure. Fig. 4 is a schematic view showing the structure of the LED light source and the curved reflecting portion of the present invention. 6 S) 1281971 Fig. 5 is a perspective view showing the appearance of the LED lamp of the present invention. Figure 6: A schematic diagram of the actual production of a car headlight in the fifth figure. Figure 7 is a side cross-sectional view of a reflective LED point source. Figure 8: Schematic diagram of the structure of a reflective headlamp. Attachment: It is a headlight light pattern that conforms to domestic regulations. [Main component symbol description] (1 0) point light source (1 1 ) reflector

(1 1 1 )弧形反射部 (1 1 2 )鑽石曲面 (1 1 3 )開口 (121)定位座 (1 3 )燈罩 (3 0 )汽車 (1 2 ) LED 光源 (1 2 2 ) LED 元件 (2 0 )車燈 (3 1 )頭燈 (5 0 )點光源 (5 1 )反射罩 (5 2 ) LED光源 (5 3 )前罩(1 1 1) curved reflector (1 1 2) diamond curved surface (1 1 3 ) opening (121) positioning seat (1 3 ) lampshade (30) car (1 2 ) LED light source (1 2 2 ) LED component (2 0 ) headlights (3 1 ) headlights (5 0 ) point light source (5 1 ) reflector (5 2 ) LED light source (5 3 ) front cover

Claims (1)

1281971 P i 2) 十、申請專利範圍: 1 種反射式LED點光源,係包含有: 反射罩,其後面形成一弧形反射部,該弧形反射 •的内面係形成兔 ^ 成為一鑽石曲面,該鑽石曲面係依照車燈規定 光形,1 2又叶其曲面的曲率及面積; 光源,係固定在反射罩上,而其發光面係面 π亥反射罩的後弧形反射部;及 一燈罩’係蓋合於該反射罩的前端開口。 2 ·如申請專利範圍第1項所述之反射S LED點光源, 該LED光源係主要包含有: 一定位座’係固定在該反射罩上;及 一 LED元件,該led元件係固定在該定位座上。 3 ·如申請專利範圍第1項所述之反射式LED點光源, 光源的疋位座係固定在該反射罩的弧形反射部上。 1 種反射式LED車燈,係由複數LED點光源群聚 排列而成,各點光源包含有·· 一反射罩’其後面形成一弧形反射部,該弧形反射部 的内面係形成為一鑽石曲面,該鑽石曲面係依照車燈規定 光形’設計其曲面的曲率及面積; led光源’係固定在反射罩上,而其發光面係面對 該反射罩的後弧形反射部;及 一燈罩’係蓋合於該反射罩的前端開口。 2 ·如申請專利範圍第4項所述之反射式LED車燈, 該LED光源係主要包含有: 1281971 赞ίΜ月巧日修(更)正替換頁 一定位座,係固定在該反射罩上;及 一 LED元件,該LED元件係固定在該定位座上。 6 ·如申請專利範圍第4項所述之反射式LED車燈, 該LED光源的定位座係固定在該反射罩的弧形反射部上。 十一、圖式: 如次頁 91281971 P i 2) X. Patent application scope: 1 reflective LED point light source, comprising: a reflector, which forms an arc-shaped reflecting portion at the back, and the inner surface of the curved reflection forms a rabbit surface; The diamond curved surface is in accordance with the light shape of the vehicle lamp, and the curvature and the area of the curved surface of the blade are 12; the light source is fixed on the reflector, and the light-emitting surface is a rear curved reflecting portion of the π-ray reflector; A lamp cover is attached to the front end opening of the reflector. The reflective S LED point light source according to claim 1, wherein the LED light source mainly comprises: a positioning seat fixed to the reflector; and an LED component, the LED component is fixed on the LED component Position the seat. 3. The reflective LED point light source of claim 1, wherein the position of the light source is fixed to the curved reflecting portion of the reflector. A reflective LED lamp is formed by a plurality of LED point light sources, and each of the point light sources includes a reflective cover forming a curved reflecting portion behind, and the inner surface of the curved reflecting portion is formed as a diamond curved surface, the curved surface of which is designed according to the light shape of the vehicle lamp to design the curvature and area of the curved surface; the led light source is fixed on the reflective cover, and the light emitting surface thereof faces the rear curved reflecting portion of the reflective cover; And a lamp cover 'covers the front end opening of the reflector. 2 · The reflective LED lamp according to claim 4, the LED light source mainly comprises: 1281971 赞 Μ 巧 巧 修 修 修 修 修 修 修 修 修 修 修 修 修 修 修 修 修 修And an LED component, the LED component is fixed on the positioning seat. 6. The reflective LED lamp of claim 4, wherein the positioning seat of the LED light source is fixed to the arc reflecting portion of the reflector. XI, schema: as the next page 9
TW94117610A 2005-05-30 2005-05-30 A reflective LED head light TWI281971B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8186840B2 (en) 2007-12-31 2012-05-29 Industrial Technology Research Institut Standard illuminant apparatus capable of providing standard LED light
US10228507B2 (en) 2008-07-10 2019-03-12 3M Innovative Properties Company Light source and optical article including viscoelastic lightguide disposed on a substrate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8186840B2 (en) 2007-12-31 2012-05-29 Industrial Technology Research Institut Standard illuminant apparatus capable of providing standard LED light
US10228507B2 (en) 2008-07-10 2019-03-12 3M Innovative Properties Company Light source and optical article including viscoelastic lightguide disposed on a substrate

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