CN107816696A - 照明结构及其配光方法 - Google Patents
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Abstract
本发明提供一种照明结构及其配光方法,该照明结构包括:基板、第一发光元件、第二发光元件、反射壳体以及遮板,其中,该反射壳体具有第一焦点及第二焦点。该第一发光元件设于基板上且位于该反射壳体内,且该第一发光元件位于该第一焦点,该遮板位于该第二焦点,从而使该第一发光元件所发出的光在经该反射壳体反射后能部分通过该遮板的中空部,以产生近光灯光形。
Description
技术领域
本发明有关一种照明结构及其配光方法,尤指一种发光效率更佳的照明结构及其配光方法。
背景技术
许多车辆(例如汽车、摩托车等)在特定环境中(例如在夜晚、隧道中或是气候所造成的能见度不佳的情形)多需要开启车灯来增进视野范围,以维护车辆的行进安全。而现有车灯多具有近灯与远灯两种功能,且可供使用者自行切换所需功能。
为了在同一车灯中同时具有近灯及远灯切换的功能,传统卤素灯泡制成的车灯往往构件繁多,造成组装繁杂,成本亦较高。而在卤素灯泡坏掉或使用者欲将其更换成LED光源时,由于车灯上原有供卤素灯泡所使用的反射灯杯的设计并非针对LED光源,使得使用者在不更动车灯原有反射灯杯,而仅将卤素灯泡更换成LED光源的情况下,往往使车灯所产生的光形不符合法规的规定,造成使用上的不便。
是以,如何提供一种可克服上述课题且发光效率更佳的照明结构及其配光方法,为目前亟待解决的课题之一。
发明内容
为针对现有技术的不足并解决上述问题,本发明提供一种照明结构及其配光方法,本发明的照明结构能够直接替换现有车用前照灯中的卤素灯、卤钨灯或HID灯,同时,也能够产生符合法规的光形。
本发明的主要目的在于提供一种照明结构,设于具有一反射灯杯的车灯中,该照明结构包括:基板,具有相对的第一面及第二面;第一发光元件,设于该第一面上;第二发光元件,设于该第二面上;反射壳体,设于该第一面上以使该第一发光元件位于该反射壳体内,其中,该反射壳体具有第一焦点及第二焦点;以及遮板,具有中空部,该遮板以该中空部远离该基板的方向连接于该基板;其中,该第一发光元件位于该第一焦点,该遮板位于该第二焦点,从而使该第一发光元件所发出的光在经该反射壳体反射后能部分通过该遮板的中空部。
本发明的另一目的在于提供一种照明结构的配光方法,用于具有一反射灯杯的车灯中,该配光方法的步骤包括:提供一照明结构,该照明结构包括基板、第一发光元件、第二发光元件、反射壳体以及遮板,其中,该基板具有相对的第一面及第二面,该第一发光元件设于该第一面上,该第二发光元件设于该第二面上,该反射壳体设于该第一面上以使该第一发光元件位于该反射壳体内,该遮板具有中空部且以该中空部远离该基板的方向连接于该基板,且其中,该反射壳体具有第一焦点及第二焦点,该第一发光元件位于该第一焦点,该遮板位于该第二焦点;令该第一发光元件发光,使该第一发光元件所发出的光通过该反射壳体进行反射;以及令已通过该反射壳体进行反射的该第一发光元件所发出的光部分聚焦于该遮板并部分通过该中空部。
通过本发明的照明结构及其配光方法,反射壳体的第一焦点上设有第一发光元件,使得第一发光元件向上所发出的光经该反射壳体反射后,能够部分通过位在该反射壳体的第二焦点上的遮板的中空部,从而能产生出符合法规的近光灯光形。此外,由于本发明的照明结构额外增设可对应第一发光元件的反射壳体,且第二发光元件设于相当于传统卤素灯泡的灯丝的位置,而更能将该照明结构直接装设于具有对应传统卤素灯泡的反射灯杯的车灯中,便利使用者将传统卤素灯泡的车灯更换成LED光源。
附图说明
图1为本发明的照明结构的示意图;
图2为图1的照明结构设于一车灯上后的剖面示意图;
图3为本发明的照明结构中反射壳体的第一实施例的示意图;
图4A为本发明的照明结构中反射壳体的第二实施例的示意图;
图4B为图4A的照明结构的上视图;
图5为本发明的照明结构的配光方法的流程步骤图;以及
图6为本发明的照明结构的配光方法的另一流程步骤图。
符号说明
1 照明结构 11 基板
111 第一面 112 第二面
12 第一发光元件 13 第二发光元件
14 反射壳体 141 直平部
15 遮板 151 中空部
152 截止部 161~165 第一路径
166~169 第二路径 171、172 第三路径
18 透镜 19 固定部
20 散热件 2 车灯
21 反射灯杯 D1 宽度
f1 第一焦点 f2 第二焦点
O 顶点 S11~S15、S21~S24 步骤。
具体实施方式
以下通过特定的具体实施例加以说明本发明的实施方式,而熟悉此技术的人士可由本说明书所揭示的内容轻易地了解本发明的其他优点和功效,亦可通过其他不同的具体实施例加以施行或应用。
请同时参阅图1及图2,图1为本发明的照明结构的示意图,图2为将图1中本发明的照明结构装设于一车灯上后的剖面示意图。本发明的照明结构1设于具有一反射灯杯21的车灯2中,该照明结构1包括基板11、第一发光元件12、第二发光元件13、反射壳体14以及遮板15。该基板11具有相对的第一面111及第二面112,该第一面111上设有该第一发光元件12,该第二面112上设有第二发光元件13。于一实施例中,该第一发光元件12及第二发光元件13由至少一发光二极管所组成,例如以三颗发光二极管横向排列而形成该第一发光元件12等,本发明并不限制发光二极管的数量及排列方式。又于一实施例中,该发光二极管为面光源,但本发明亦不以此为限。
该反射壳体14设于该基板11的第一面111上。于一实施例中,该反射壳体14呈现半椭圆杯状,因此,该反射壳体14设于第一面111上时,可罩住第一发光元件12,亦即,该第一发光元件12位于该反射壳体14内。又由于该反射壳体14近似椭圆,故该反射壳体14具有第一焦点f1及第二焦点f2。于一实施例中,呈现半椭圆杯状的反射壳体14设于第一面111上后的开口宽度为15mm至38mm之间,最佳为37.2mm,但本发明并不以此为限。
该遮板15具有中空部151,而该遮板15与该基板11之间的连接方式,以该中空部151远离该基板11的方向连接于该基板11,亦即,该遮板15并非以该中空部151的一端来连接该基板11。于一实施例中,该遮板15的材料为铜或铝,因此具备散热功能。
在本实施例中,第一发光元件12位于该反射壳体14的第一焦点f1,而该遮板15则位于该反射壳体14的第二焦点f2。请参阅图2,当第一发光元件12发光时,所发出的光部分经由第一路径161而碰到反射壳体14,反射壳体14反射该光,使得该光经由第一路径162行进并射向位于第二焦点f2的遮板15。由于遮板15表面为反射面,故能反射该光沿着第一路径163离开,反射面的设计具有提升光学效率的效果。
在本实施例中,当第一发光元件12发光时,所发出的光部分则经由第二路径166射出而碰到反射壳体14,反射壳体14反射该光,使得该光经由第二路径167行径而能通过该遮板15的中空部151。换言之,第一发光元件12所发出的光,一部分的光将被位在第二焦点f2的遮板15所反射,一部分的光将通过遮板15的中空部151。
于一实施例中,该反射壳体14的顶点O与该第一焦点f1的距离范围为2mm至15mm,最佳为7.5mm,但本发明并不以此为限。
于一实施例中,本发明的照明结构1更包括透镜18,该透镜18以远离该遮板15的方向而设于该遮板15的前方,例如,该透镜18连接该遮板15的中空部151。当第一发光元件12发光时,所发出的光经由第一路径163及第二路径167行进而进入透镜18中。于一实施例中,该透镜18为凸透镜、平凸透镜或菲涅耳透镜(Fresnel Lens),因此,该光于透镜18中所行经的第一路径164及第二路径168将有聚焦的效果,该光从第二路径169射出而产生该车灯2的近光灯光形,另该光从第一路径165射出将有助于提升本发明的照明结构整体的光学效率。
于一实施例中,该透镜18的直径为10mm至38mm之间,最佳为32mm,但本发明并不以此为限。于另一实施例中,该反射壳体14的第二焦点f2位在透镜18的焦距内,该透镜18的焦距为10mm至35mm之间,最佳为25mm,但本发明并不以此为限。
于一实施例中,该遮板15具有截止部152。具体而言,具有截止部152的遮板15的厚度,大于未具有截止部152的遮板15的厚度。而该截止部152一般设于第一发光元件12所发出的光经反射壳体14反射后的第一路径162的右侧,以遮蔽光线从而形成汽车左驾所需的非对称近光灯光形,但本发明并不以此为限,本领域技术人员当可控制截止部152的位置与厚度来形成汽车左驾或右驾所需的非对称近光灯光形,且该近光灯光形符合法规的规定。
该第二发光元件13设于该基板11的第二面112,请参阅图2,该第二发光元件13所发出的光经由第三路径171而射入至车灯2的反射灯杯21,该光经由反射灯杯21反射后,从第三路径172射出而直接产生该车灯2的远光灯光形。亦即,该第二发光元件13所发出的光经由反射灯杯21反射后,并不会通过该遮板15及该透镜18,而可直接产生远光灯光形。另第二发光元件13于基板11的第二面112上的位置,本领域技术人员当可依据车灯2的反射灯杯21的曲率(或是使第二发光元件13具有最强发光效率的位置)来加以决定,使第二发光元件13所发出的光经由反射灯杯21反射后不会通过该遮板15及该透镜18即可。另此第二发光元件13于基板11的第二面112上的位置,一般可为使用传统卤素灯泡的车灯中,该传统卤素灯泡相对于该车灯的反射灯杯的位置,但本发明并不以此为限。
本发明的照明结构1可包括固定部19及散热件20,该固定部19连接该基板11的一侧且呈现圆盘状,该固定部19并具有多个凸部,以供旋转卡合在车灯1的固定座上,散热件20连接该固定部19,用以提供散热功能。
请同时参阅图3及图4A,该图3的反射壳体14内并无如图4A所示的反射壳体内所具有的直平部141。所谓的直平部141是指反射壳体14内壁面上有一段没有曲率的条状平坦壁面,而此直平部141相对位于第一发光元件12的上方。于一实施例中,如图4B所示,直平部141仅相对位于部分该第一发光元件12的上方,据此,具有直平部141的反射壳体,将使反射壳体具有双光轴,亦即,第一发光元件12所发出的光经直平部141反射后具有一光轴,第一发光元件12所发出的光经非直平部141的部分反射后具有另一光轴。但是本发明并不限定该反射壳体14必须具有直平部141,但具备直平部141的反射壳体,其反射效率将高于不具备直平部141的反射壳体的反射效率。
于一实施例中,该直平部141的宽度D1为0.01mm至4.6mm之间,最佳为0.04mm,但本发明并不以此为限。
请参阅图5,本发明另提供一种照明结构的配光方法,用于具有一反射灯杯的车灯中。用以实现本发明的照明结构的配光方法的硬体部件,相同于前述本发明的照明结构1所揭露者,因此,相同的技术内容于下将不再赘述。
首先,在步骤S11中,先提供一照明结构。该照明结构包括基板、第一发光元件、第二发光元件、反射壳体以及遮板,其中,该基板具有相对的第一面及第二面,该第一发光元件设于该第一面上,该第二发光元件设于该第二面上,该反射壳体设于该第一面上以使该第一发光元件位于该反射壳体内,该遮板具有中空部且以该中空部远离该基板的方向连接于该基板,且其中,该反射壳体具有第一焦点及第二焦点,该第一发光元件位于该第一焦点,该中空部位于该第二焦点。
接着进至步骤S12,令第一发光元件发光。接着进至步骤S13,使该第一发光元件所发出的光通过该反射壳体进行反射,接着进至步骤S14。
在步骤S14中,令已通过该反射壳体进行反射的该第一发光元件所发出的光聚焦于该遮板,且由于该中空部位于第二焦点,故该光将会通过该中空部。接着进至步骤S15。
在步骤S15中,在已通过该反射壳体进行反射的该第一发光元件所发出的光聚焦于该遮板并通过该中空部后,该光将穿过位于该遮板前方的透镜的下半部。
于一实施例中,令已通过该反射壳体进行反射的该第一发光元件所发出的光在通过该中空部之前,会受到该遮板的截止部的遮蔽而能控制该车灯产生的近光灯光形。
请参阅图6,本发明再提供一种照明结构的配光方法,用于具有一反射灯杯的车灯中。用以实现本发明的照明结构的配光方法的硬体部件,相同于前述本发明的照明结构1所揭露者,因此,相同的技术内容于下将不再赘述。
在步骤S21中,先提供一照明结构。在步骤S22中,令第二发光元件发光,接着进至步骤S23及S24,使该第二发光元件所发出的光经该反射灯杯反射后不会通过该遮板及该透镜,以直接产生该车灯的远光灯光形。
本发明的照明结构的配光方法,第一发光元件与第二发光元件可分别发光,从而分别产生该车灯的近光灯光形及远光灯光形,另该第一发光元件与第二发光元件亦可同时发光,本发明并不以此为限。
通过本发明的照明结构及其配光方法,该照明结构增设有不同于车灯原有反射灯杯的反射壳体,使该反射壳体的第一焦点上设有第一发光元件,进一步令第一发光元件向上所发出的光经该反射壳体反射后,能够通过位在该反射壳体的第二焦点上的遮板的中空部,从而能产生出符合法规的近光灯光形。此外,由于本发明的照明结构额外增设可对应第一发光元件的反射壳体,又,该第二发光元件设于基板的第二面上,且其设置位置相当于在使用传统卤素灯泡的车灯中,该传统卤素灯泡相对于该车灯的反射灯杯的位置,使第二发光元件有效利用原车灯的反射灯杯而可产生远光灯光形。因此,本发明更能将该照明结构直接装设于具有对应传统卤素灯泡的反射灯杯的车灯中,便利使用者将传统卤素灯泡的车灯更换成LED光源。
上述实施形态仅为例示性说明本发明的技术原理、特点及其功效,并非用以限制本发明的可实施范畴,任何熟习此技术的人士均可在不违背本发明的精神与范畴下,对上述实施形态进行修饰与改变。然任何运用本发明所教示内容而完成的等效修饰及改变,均仍应为权利要求范围所涵盖。而本发明的权利保护范围,应如权利要求书所列。
Claims (18)
1.一种照明结构,设于具有一反射灯杯的车灯中,其特征在于,该照明结构包括:
基板,具有相对的第一面及第二面;
第一发光元件,设于该第一面上;
第二发光元件,设于该第二面上;
反射壳体,设于该第一面上以使该第一发光元件位于该反射壳体内,其中,该反射壳体具有第一焦点及第二焦点;以及
遮板,具有中空部,该遮板以该中空部远离该基板的方向连接于该基板;
其中,该第一发光元件位于该第一焦点,该遮板位于该第二焦点,从而使该第一发光元件所发出的光在经该反射壳体反射后能部分通过该遮板的中空部。
2.根据权利要求1所述的照明结构,其特征在于,该照明结构更包括透镜,该透镜以远离该遮板的方向而设于该遮板的前方,从而使该第一发光元件所发出的光在经该反射壳体反射及部分通过该遮板的中空部后,能穿过该透镜。
3.根据权利要求2所述的照明结构,其特征在于,该透镜为凸透镜、平凸透镜或菲涅耳透镜。
4.根据权利要求2所述的照明结构,其特征在于,该第二发光元件所发出的光经该反射灯杯反射后不会通过该遮板及该透镜,以直接产生该车灯的远光灯光形。
5.根据权利要求1所述的照明结构,其特征在于,该第一发光元件及该第二发光元件由至少一发光二极管所组成。
6.根据权利要求5所述的照明结构,其特征在于,该发光二极管为面光源。
7.根据权利要求1所述的照明结构,其特征在于,该反射壳体内具有一直平部,该直平部相对位于部分该第一发光元件的上方。
8.根据权利要求1所述的照明结构,其特征在于,该遮板具有截止部,该截止部位于该第一发光元件所发出的光在经反射壳体反射后的路径上,以控制该车灯产生的近光灯光形。
9.根据权利要求1所述的照明结构,其特征在于,该反射壳体为半椭圆杯状。
10.一种照明结构的配光方法,用于具有一反射灯杯的车灯中,其特征在于,该配光方法的步骤包括:
提供一照明结构,该照明结构包括基板、第一发光元件、第二发光元件、反射壳体以及遮板,其中,该基板具有相对的第一面及第二面,该第一发光元件设于该第一面上,该第二发光元件设于该第二面上,该反射壳体设于该第一面上以使该第一发光元件位于该反射壳体内,该遮板具有中空部且以该中空部远离该基板的方向连接于该基板,且其中,该反射壳体具有第一焦点及第二焦点,该第一发光元件位于该第一焦点,该遮板位于该第二焦点;
令该第一发光元件发光,使该第一发光元件所发出的光通过该反射壳体进行反射;以及
令已通过该反射壳体进行反射的该第一发光元件所发出的光部分聚焦于该遮板并部分通过该中空部。
11.根据权利要求10所述的配光方法,其特征在于,在已通过该反射壳体进行反射的该第一发光元件所发出的光部分通过该中空部后,更穿过一位于该遮板前方的透镜。
12.根据权利要求11所述的配光方法,其特征在于,当该第二发光元件发光时,该第二发光元件所发出的光经该反射灯杯反射后不会通过该遮板及该透镜,以直接产生该车灯的远光灯光形。
13.根据权利要求11所述的配光方法,其特征在于,该透镜为凸透镜、平凸透镜或菲涅耳透镜。
14.根据权利要求10所述的配光方法,其特征在于,令已通过该反射壳体进行反射的该第一发光元件所发出的光在部分通过该中空部之前,会受到该遮板的截止部的遮蔽而能控制该车灯产生的近光灯光形。
15.根据权利要求10所述的配光方法,其特征在于,该反射壳体为半椭圆杯状。
16.根据权利要求10所述的配光方法,其特征在于,该反射壳体内具有一直平部,该直平部相对位于部分该第一发光元件的上方。
17.根据权利要求10所述的配光方法,其特征在于,该第一发光元件及该第二发光元件由至少一发光二极管所组成。
18.根据权利要求17所述的配光方法,其特征在于,该发光二极管为面光源。
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Also Published As
Publication number | Publication date |
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US10883691B2 (en) | 2021-01-05 |
TWI642568B (zh) | 2018-12-01 |
EP3293445A1 (en) | 2018-03-14 |
JP2018041729A (ja) | 2018-03-15 |
TW201811589A (zh) | 2018-04-01 |
JP6465940B2 (ja) | 2019-02-06 |
US20180066821A1 (en) | 2018-03-08 |
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