CN110828439A - 光源装置及可携式通讯设备 - Google Patents

光源装置及可携式通讯设备 Download PDF

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Publication number
CN110828439A
CN110828439A CN201811401708.2A CN201811401708A CN110828439A CN 110828439 A CN110828439 A CN 110828439A CN 201811401708 A CN201811401708 A CN 201811401708A CN 110828439 A CN110828439 A CN 110828439A
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China
Prior art keywords
light
light source
source device
laser unit
transmitting member
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CN201811401708.2A
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CN110828439B (zh
Inventor
蔡心伟
陈怡如
曹侯焱
杨淑桦
苏渝宏
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Lite On Opto Technology Changzhou Co Ltd
Lite On Technology Corp
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Lite On Opto Technology Changzhou Co Ltd
Lite On Technology Corp
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Priority to US16/535,490 priority Critical patent/US10866375B2/en
Publication of CN110828439A publication Critical patent/CN110828439A/zh
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    • H—ELECTRICITY
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    • H01L33/62—Arrangements for conducting electric current to or from the semiconductor body, e.g. lead-frames, wire-bonds or solder balls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/06—Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices, e.g. connectors
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Abstract

本发明公开一种光源装置及可携式通讯设备，所述光源装置包含有基板、设置于基板的电极层与围墙、间隔地安装于电极层并位于围墙内侧的激光单元与光侦测器、及设置于围墙上且覆盖激光单元与光侦测器的透光件。所述激光单元接收一预定电流后而朝透光件发出不可见光线，所述光侦测器接收自透光件反射的部分不可见光线而产生一初始光电流。当所述激光单元接收一操作电流，以使光侦测器产生的一侦测光电流低于所述初始光电流的一第一比例或高于所述初始光电流的一第二比例时，所述激光单元停止接收操作电流。据此，所述光源装置能被应用于保护人眼的装置中。

Description

光源装置及可携式通讯设备
技术领域
本发明涉及一种光源装置，尤其涉及一种使用激光单元的光源装置及可携式通讯设备。
背景技术
在包含有激光单元的现有光源装置中，并未针对损坏的情况设有相对应的机制，所以当现有光源装置在特定损坏状况时，所述激光单元所发出的光线容易伤害人眼。
于是，本发明人认为上述缺陷可改善，乃特潜心研究并配合科学原理的运用，终于提出一种设计合理且有效改善上述缺陷的本发明。
发明内容
本发明实施例在于提供一种光源装置及可携式通讯设备，其能有效地改善现有光源装置所可能产生的缺陷。
本发明实施例公开一种光源装置，包括：一基板，包含有位于相反侧的一第一板面与一第二板面；一电极层，设置于所述基板的所述第一板面；一围墙，设置于所述第一板面上；一激光单元与一光侦测器，彼此间隔地安装于所述电极层、并位于所述围墙内侧；其中，所述激光单元是用来发出一不可见光线；以及一透光件，设置于所述围墙上且覆盖所述激光单元与所述光侦测器；其中，所述激光单元接收一预定电流后而朝所述透光件发出所述不可见光线，所述光侦测器接收自所述透光件反射的部分所述不可见光线而产生一初始光电流；其中，当所述激光单元接收一操作电流，以使所述光侦测器产生的一侦测光电流低于所述初始光电流的一第一比例或高于所述初始光电流的一第二比例时，所述激光单元停止接收所述操作电流。
优选地，所述第一比例为70％，所述第二比例为136％。
优选地，所述第一比例为52.3％，所述第二比例为130.8％。
优选地，所述激光单元发出的所述不可见光线穿过所述透光件，而于水平方向形成介于40度至115度的一远场发散角，并于垂直方向形成介于40度至115度的一远场发散角。
优选地，当所述光侦测器产生的所述侦测光电流介于所述初始光电流的所述第一比例和所述初始光电流的所述第二比例之间时，所述光源装置符合IEC60825标准的class1规范。
优选地，所述光源装置的工作距离为100毫米(mm)，光圈为7毫米(mm)，且所述光源装置的功率不大于3.79毫瓦(mW)，以符合IEC60825标准中的class 1规范。
优选地，所述激光单元为一垂直共振腔面射型雷射，并用以发出一红外光线。
优选地，所述激光单元包含有一发光面，并且所述发光面朝向所述透光件正投影所形成的一投影区域，其位于所述透光件的外轮廓内侧。
优选地，所述操作电流为直流电流(Direct Current)时，所述操作电流小于1.2安培，且所述光源装置的功率不大于3.79毫瓦。
优选地，所述操作电流由所述光源装置的可接受雷射辐射上限(AccessibleEmission Limit，AEL)，搭配一上限使用条件和一下限使用条件所限定，所述上限使用条件为所述透光件覆盖所述光侦测器及所述激光单元，所述下限使用条件为所述透光件覆盖所述激光单元，并且所述透光件于所述上限使用条件中的尺寸大于所述透光件于所述下限使用条件中的尺寸。
优选地，所述操作电流定义为x，所述侦测光电流定义为y；于所述上限使用条件中，所述操作电流与所述侦测光电流满足以下关系式y＝-0.0002x2+1.2873x-264.86；于所述下限使用条件中，所述操作电流与所述侦测光电流满足以下关系式y＝-0.0001x2+0.7039x-178.65。
优选地，所述操作电流为脉冲电流(Pulse Current)时，所述操作电流不大于2安培，且所述光源装置的功率不大于3.79毫瓦。
优选地，所述操作电流由所述光源装置的可接受雷射辐射上限(AccessibleEmission Limit，AEL)及占空比(duty cycle)搭配一上限使用条件和一下限使用条件所限制，所述上限使用条件为所述透光件覆盖所述光侦测器及所述激光单元，所述下限使用条件为所述透光件覆盖所述激光单元，并且所述透光件于所述上限使用条件中的尺寸大于所述透光件于所述下限使用条件中的尺寸。
优选地，所述光侦测器具有呈矩形的一光接收区，并且所述光接收区的一长度方向垂直于所述围墙的一长度方向。
优选地，所述透光件包含有一透光玻璃板和设置于所述透光玻璃板的一光扩散聚合物层(light-diffusing polymer layer)，并且所述光扩散聚合物层面向所述激光单元与所述光侦测器。
优选地，所述光扩散聚合物层包含有面向所述激光单元与所述光侦测器的多个光学微结构，所述激光单元包含有一发光面，并且所述发光面朝向所述光扩散聚合物层正投影所形成的一投影区域，其位于多个所述光学微结构的外轮廓内侧。
本发明实施例也公开一种可携式通讯设备，包括：如上所述的光源装置；以及一控制单元，电性耦接于所述光源装置的所述光侦测器、并能用来控制所述操作电流提供至所述激光单元；其中，当所述光侦测器产生的所述侦测光电流少于所述初始光电流的所述第一比例或高于所述初始光电流的所述第二比例时，所述控制器停止对所述激光单元提供所述操作电流。
综上所述，本发明实施例所公开的光源装置，其通过所述光侦测器所产生侦测光电流来决定所述激光单元是否运作，据以避免因为透光件的损坏而使自激光单元发出的光线伤害到人眼，进而能被应用于保护人眼的装置(如：可携式通讯设备)中。
为能更进一步了解本发明的特征及技术内容，请参阅以下有关本发明的详细说明与附图，但是此等说明与附图仅用来说明本发明，而非对本发明的保护范围作任何的限制。
附图说明
图1为本发明实施例一的光源装置的立体示意图。
图2为图1另一视角的立体示意图。
图3为图1的分解示意图(省略黏着胶)。
图4为图1省略黏着胶与透光件的俯视示意图。
图5为图1的另一分解示意图(省略黏着胶)。
图6为图1沿剖线VI-VI的剖视示意图。
图7为图1沿剖线VⅡ-VⅡ的剖视示意图。
图8为本发明实施例二的光源装置的分解示意图(省略黏着胶)。
图9为本发明实施例二的光源装置的俯视示意图(省略黏着胶与透光件)。
图10为本发明实施例三的光源装置的分解示意图(省略黏着胶)。
图11为本发明实施例三的光源装置的俯视示意图(省略黏着胶与透光件)。
图12为本发明实施例五的光源装置的分解示意图(省略黏着胶)。
图13为本发明实施例五的光源装置的俯视示意图(省略黏着胶与透光件)。
图14为图1的光源装置所接收的操作电流为直流电流时的侦测光电流曲线示意图。
图15为图12和图13的光源装置所接收的操作电流为直流电流时的侦测光电流曲线示意图。
图16为图1的光源装置所接收的操作电流为脉冲电流(占空比为54％)时的侦测光电流曲线示意图。
图17为图1的光源装置的使用状态示意图。
图18为本发明可携式通讯设备的功能方块示意图。
具体实施方式
请参阅图1至图18，其为本发明的实施例，需先说明的是，本实施例对应附图所提及的相关数量与外型，仅用来具体地说明本发明的实施方式，以便于了解本发明的内容，而非用来局限本发明的保护范围。
如图1至图4所示，本实施例公开一种光源装置100，特别是指用于三维感测的光源装置100，但本发明不以此为限。其中，如图5至图7所示，所述光源装置100包含有一基板1、位于上述基板1相反两侧的一电极层2与一焊垫层3、埋置于所述基板1内的多个导通柱4、设置于所述基板1上的一围墙5、彼此间隔地安装于所述电极层2的一激光单元6与一光侦测器7、设置于所述围墙5上的一透光件8、及连接固定上述透光件8与围墙5的一黏着胶9。以下将分别说明所述光源装置100的各个组件构造及其连接关系。
如图5至图7所示，所述基板1于本实施例中大致呈方形(如：长方形或正方形)、并据以定义有相互正交的一长度方向L、一宽度方向W、及一高度方向H，以便于说明后述组件间的相对位置。其中，本实施例的基板1是以一陶瓷基板来说明、并包含有位于相反侧的一第一板面11与一第二板面12。
所述电极层2设置于上述基板1的第一板面11，并且电极层2包含有间隔设置的多个电极垫21。其中，上述多个电极垫21的外形较佳是于几何上彼此对应或互补，据以能够覆盖上述第一板面11的至少80％的面积。然而，所述多个电极垫21的外形可依据设计需求而加以调整或变化，并不以本实施例图式所载的外形为限。如图4所示，电极层2有四个电极垫21，其中两个电极垫21供光侦测器7固晶和打线，另外两个电极垫21供激光单元6固晶和打线。
所述焊垫层3设置于上述基板1的第二板面12，并且焊垫层3包含有间隔设置的多个金属垫31。再者，埋置于上述基板1内的每个导通柱4的两端分别连接于电极层2和焊垫层3，以使所述电极层2至焊垫层3能够通过上述多个导通柱4而彼此电性连接。进一步地说，位于中间的金属垫31提供散热，位于两侧的金属垫31分别作为激光单元6和光侦测器7的正负电极，也就是说，位于两侧的金属垫31分别具有导通柱4连接四个电极垫21。
如图5至图7所示，所述围墙5设置于基板1的第一板面11上，并且围墙5的外侧缘切齐于基板1的外侧缘，而所述电极层2的***部位(较佳是，每个电极垫21的局部)被埋置于上述围墙5内。其中，所述围墙5呈环形阶梯状，并且本实施例的围墙5为模制成形的单件式构造，但本发明不受限于此。举例来说，在本发明未绘示的其他实施例中，所述围墙5与基板1也可以是一体成形的单件式构造。
进一步地说，上述围墙5由外而内依序包含有一上阶面51、相连于所述上阶面51内缘的一上梯面52、一下阶面53、及相连于所述下阶面53内缘的一下梯面54。再者，所述围墙5于本实施例中包含有连接于所述上梯面52与下阶面53的两个倾斜面55，并且上述两个倾斜面55是分别相连于下阶面53的相反两侧(如：图4中的下阶面53的两个短边缘)。
其中，所述上阶面51呈方环状(如：长方环状或正方环状)且远离所述基板1，上阶面51于本实施例中也就是所述围墙5的顶面、并且较佳是平行于所述基板1的第一板面11。所述上梯面52呈方环状且垂直地相连于上阶面51内缘。所述下阶面53呈方环状且位于上梯面52的内侧，并且下阶面53较佳是平行于上阶面51，而所述下阶面53与第一板面11的一距离D53小于所述上阶面51与第一板面11的一距离D51。所述下梯面54呈方环状，下阶面53垂直地相连于下阶面53内缘且远离上阶面51，并且所述下梯面54与基板1的第一板面11包围形成有一容置槽S。
再者，所述每个倾斜面55的一侧(如：图6中的每个倾斜面55的内侧缘)与下阶面53相连形成有超过90度的一夹角，并且所述每个倾斜面55的另一侧(如：图6中的每个倾斜面55的外侧缘)与上梯面52共同构成夹角小于90度的一收容沟56。也就是说，所述围墙5的两个收容沟56位置(沿着长度方向L)彼此相向，但本发明不受限于此。举例来说，在本发明未绘示的其他实施例中，所述围墙5也可以形成有至少一个倾斜面55及其对应的至少一个收容沟56；或者所述围墙5也可以省略上述倾斜面55其对应的收容沟56。
如图5至图7所示，所述围墙5自下阶面53与下梯面54共同凹设形成有连通于所述容置槽S的两个凹口57，并且上述两个凹口57的位置(沿着宽度方向W)彼此相向。其中，所述围墙5的两个凹口57较佳是分别位于下阶面53的两个长边缘中央处；也就是说，所述围墙5的两个收容沟56与两个凹口57的位置是分别对应于下阶面53的四个边缘，但本发明不受限于此。举例来说，在本发明的其他实施例中，所述围墙5也可以形成有至少一个凹口57。
更详细地说，如图4和图7所示，上述每个凹口57包含有彼此间隔且相向的两个内侧壁571、及位于两个所述内侧壁571之间的一平底壁572与一倾斜底壁573。于上述每个凹口57中，每个内侧壁571垂直地相连于上梯面52，所述平底壁572与第一板面11的距离D572小于所述下阶面53与第一板面11的距离D53，而所述倾斜底壁573的一侧(如：图7中的倾斜底壁573的内侧缘)与平底壁572相连形成有超过90度的一夹角，并且所述倾斜底壁573的另一侧(如：图7中的倾斜底壁573的外侧缘)与上梯面52相连以构成夹角小于90度的一凹槽574。透过V形凹槽574的设计，落尘可以被收容在凹槽574内，避免直接进入容置槽S。
如图5至图7所示，所述激光单元6于本实施例中是以一垂直共振腔面射型雷射(Vertical-Cavity Surface-Emitting Laser，VCSEL)来说明，用以发出一红外光(如：波长为850nm或940nm的红外光)，而所述光侦测器7于本实施例中则是以一光电二极管(photodiode，PD)芯片为例，但本发明不以此为限，光侦测器7用来监控激光单元6的光讯号，避免因雷射造成对眼睛的伤害，借此提供眼睛保护(eye safety)。
其中，所述激光单元6与光侦测器7皆位于上述容置槽S内(也就是所述围墙5内侧)，并且上述激光单元6的位置较佳是对应于第一板面11的中央处，上述激光单元6与光侦测器7较佳是沿着长度方向L设置，但本发明不以此为限。其中，所述光侦测器7于本实施例中具有呈矩形的一光接收区71，并且所述光接收区71的一长度方向垂直于所述围墙5的长度方向(也就是基板1所定义的长度方向L)。
如图5至图7所示，所述透光件8于本实施例中为一透光玻璃板81和设置于透光玻璃板81上的光扩散聚合物层82(light-diffusing polymer layer)，上述透光件8设置于所述围墙5的下阶面53、并与上梯面52之间呈间隔设置(也就是，透光件8未接触于上梯面52)，以使上述每个凹口57构成能够连通容置槽S与一外部空间的一气流通道。其中，所述透光件8的一部分突伸出所述围墙5的上阶面51，并且所述透光件8的该部分超过其50％的体积，但本发明不以此为限。在其他实施例中，所述透光件8可以不突伸出所述围墙的上阶面51，也就是说透光件8的顶面与所述围墙的上阶面51等高或略低，如图12所示。
换个角度来看，所述透光件8设置于所述围墙5上且覆盖所述激光单元6与光侦测器7，并且上述光扩散聚合物层82面向所述激光单元6与光侦测器7。其中，所述激光单元6包含有一发光面61，并且所述发光面61朝向透光件8正投影所形成的一投影区域，其位于所述透光件8的外轮廓内侧。进一步地说，所述光扩散聚合物层82包含有面向所述激光单元6与光侦测器7的多个光学微结构821，所述激光单元6的发光面61朝向所述光扩散聚合物层82正投影所形成的一投影区域，其位于所述多个光学微结构82的外轮廓内侧。需额外说明的是，本实施例的多个光学微结构821是以周期性排列来说明，但本发明不受限于此。举例来说，在本发明未绘示的其他实施例中，所述多个光学微结构821也可以是非周期性排列。
再者，所述透光件8于本实施例中通过黏着胶9而固定于所述围墙5的下阶面53，并且所述黏着胶9能使透光件8与下阶面53之间大致无间隙地连接，而所述围墙5的每个收容沟56能用来容纳部分黏着胶9(如：自透光件8与下阶面53之间溢出的黏着胶9)。
此外，本实施例的光源装置100虽是以上述组件搭配来说明，但所述光源装置100的具体构造也可以依据设计需求而加以调整。举例来说，所述光源装置100内部的组件配置可以调整成如图8至图13所示的其他实施例构造，而在图8至图11所示的光源装置100中，所述收容沟56可以是呈U形(也就是，所述倾斜面55与上梯面52之间的连接区域呈U形)，位于两个U形收容沟56的黏着胶9可以用来接合所述透光件8。又或者，如图12和图13所示，所述光源装置100的围墙5仅形成有一个凹口57，所述收容沟56可以是呈C形(也就是，所述倾斜面55与上梯面52之间的连接区域呈C形)，位于一个C形收容沟56的黏着胶9可以用来接合所述透光件8。
以上为本实施例光源装置100、100a的结构说明，但在上述光源装置100、100a的生产、运输、或使用过程中，透光件8有可能产生裂痕或破裂的情况，而上述透光件8依其破损程度的不同，还是可以区分为：不会导致自激光单元6发出的光线伤害人眼的可接受破损，或是会导致自激光单元6发出的光线伤害人眼的不可接受破损(如：当透光件8因损坏而未能覆盖激光单元6，以使激光单元6发出的光线直射至人眼)。
据此，为了有效地判断透光件8的损坏程度，以避免自激光单元6发出的光线伤害到人眼，所述光源装置100、100a包含有能够达到保护人眼功能的下述相关技术特征，并且下述说明将主要以图1至图7所示的光源装置100为例，但本发明并不以此为限。
如图14所示，为图1的光源装置所接收的操作电流为直流电流时的侦测光电流曲线示意图。当所述激光单元6接收一预定电流后而朝所述透光件8发出所述不可见光线，所述光侦测器7接收自透光件8反射的部分所述不可见光线而产生一初始光电流，如C0曲线。需先说明的是，由于透光件8产生损坏时，透光件8会因为损坏的程度不同，而影响其所反射的光线角度与亮度，所以光侦测器7所产生的一侦测光电流能够一定程度上的呈现出透光件8的损坏程度，以作为判断光源装置100是否会对人眼造成伤害的参考依据之一。
据此，当所述激光单元6接收一操作电流，以使所述光侦测器7产生的侦测光电流低于所述初始光电流C0的一第一比例或高于所述初始光电流C0的一第二比例时，透光件8的损坏程度已经可能会使光源装置100对人眼造成伤害，所以所述激光单元6停止接收操作电流。进一步地说，当所述光侦测器7产生的侦测光电流介于所述初始光电流C0的第一比例和初始光电流C0的第二比例之间时，所述光源装置100符合IEC60825标准的class 1规范。
其中，如图14所示，在图1至图7所示的光源装置100中，所述第一比例为70％，并且所述第二比例为136％；也就是说，当第一比例低于70％或第二比例高于136％时，透光件8的损坏已严重到可能会使光源装置100对人眼造成伤害，但本发明的第一比例与第二比例不以上述数据为限。举例来说，如图15所示，在图12和图13所示的光源装置100中，所述第一比例为52.3％，并且所述第二比例为130.8％。
更详细地说，在所述操作电流为不同电流类型时，为使所述光源装置100能够符合IEC60825标准的class 1规范，光源装置100也相对应地包含有不同的相关技术特征，举例说明如下：
如图14所示，在侦测光电流低于所述初始光电流C0的第一比例或高于所述初始光电流C0的第二比例的前提之下，当所述操作电流为直流电流(Direct Current)时，所述光源装置100所接收的操作电流小于1.2安培，且所述光源装置100的功率不大于3.79毫瓦，但本发明不以此为限。其中，所述操作电流较佳是符合图14中的封闭区域，而上述封闭区域的边界点包含：操作电流为0.9安培且光源装置100的功率为3.65毫瓦(如：图14中的A点)、操作电流为1.1安培且光源装置100的功率为3.52毫瓦(如：图14中的B点)、及操作电流为0.9安培且光源装置100的功率为3.53毫瓦(如：图14中的C点)。
再者，改由结构设计角度来看，所述光源装置100也能通过透光件8与其他组件(如：激光单元6)之间的对应关系限定，以避免因为透光件8的损坏而使光源装置100对人眼造成伤害。进一步地说，当所述操作电流为直流电流时，所述操作电流是由光源装置100的可接受雷射辐射上限(Accessible Emission Limit，AEL)搭配一上限使用条件及一下限使用条件所限定。其中，所述上限使用条件为所述透光件8覆盖所述光侦测器7及激光单元6，所述下限使用条件为所述透光件8覆盖激光单元6，并且所述透光件8于所述上限使用条件中的尺寸大于所述透光件8于所述下限使用条件中的尺寸。换个角度来说，当所述透光件8产生损坏时，上限使用条件是指所述光侦测器7及激光单元6的正上方还存在有透光件8，而所述下限使用条件是指所述激光单元6的正上方还存在有透光件8。
换个角度来看，如图14所示，所述操作电流为直流时(单位：安培A)定义为x，所述侦测光电流(单位：μA)定义为y。于所述上限使用条件中(对应于图14中的曲线C1)，所述操作电流与侦测光电流满足以下关系式y＝-0.0002x2+1.2873x-264.86；于所述下限使用条件中(对应于图14中的曲线C2)，所述操作电流与侦测光电流满足以下关系式y＝-0.0001x2+0.7039x-178.65。
此外，如图16所示，在侦测光电流低于所述初始光电流C0的第一比例或高于所述初始光电流C0的第二比例的前提之下，当所述操作电流为脉冲电流(Pulse Current)时，所述光源装置100所接收的操作电流不大于2安培(如：操作电流较佳是符合图16中的封闭区域)，且所述光源装置100的功率不大于3.79毫瓦。其中，所述操作电流的占空比(dutycycle)为54％时，其较佳是符合图16中的封闭区域，而上述封闭区域的边界点包含：操作电流为1.7安培且光源装置100的功率为3.53毫瓦(如：图16中的A’点)、操作电流为2安培且光源装置100的功率为3.54毫瓦(如：图16中的B’点)、及操作电流为1.4安培且光源装置100的功率为3.53毫瓦(如：图16中的C’点)。
再者，改由结构设计角度来看，所述光源装置100也能通过透光件8与其他组件(如：激光单元6)之间的对应关系限定，以避免因为透光件8的损坏而使光源装置100对人眼造成伤害。进一步地说，当所述操作电流为脉冲电流时，所述操作电流由所述光源装置100的可接受雷射辐射上限(AEL)及占空比搭配一上限使用条件和一下限使用条件所限制。其中，所述上限使用条件为所述透光件8覆盖所述光侦测器7及激光单元6，所述下限使用条件为所述透光件8覆盖激光单元6，并且所述透光件8于所述上限使用条件中的尺寸大于所述透光件8于所述下限使用条件中的尺寸。换个角度来说，当所述透光件8产生损坏时，上限使用条件是指所述光侦测器7及激光单元6的正上方还存在有透光件8，而所述下限使用条件是指所述激光单元6的正上方还存在有透光件8。
需额外说明的是，为使所述光源装置100符合IEC60825标准中class 1规范，光源装置100较佳是包含有下述至少部分条件。如图17所示，所述光源装置100的工作距离为100毫米(mm)，且所述光源装置100的功率不大于3.79毫瓦(mW)。所述激光单元6发出的不可见光线穿过所述透光件8，而于水平方向形成介于40度至115度的一远场发散角α1，并于垂直方向形成介于40度至115度的一远场发散角α2。
此外，如图18所示，本实施例也公开一种可携式通讯设备，其包含有上述光源装置100及一控制单元200。其中，所述控制单元200电性耦接于所述光源装置100的光侦测器7、并能用来控制所述操作电流提供至激光单元6。进一步地说，当所述光侦测器7产生的侦测光电流少于所述初始光电流C0的第一比例或高于所述初始光电流C0的第二比例时，所述控制器200停止对所述激光单元6提供操作电流；当所述光侦测器7产生的所述侦测光电流介于所述初始光电流C0的第一比例和第二比例之间时，所述光源装置100符合IEC60825标准的class 1规范。
[本发明实施例的技术效果]
综上所述，本发明实施例所公开的光源装置100、100a，其通过围墙5的结构设计，以使围墙5内部的容置槽S能够经由凹口57而连通于外部空间，进而形成能够符合不同需求的构造。
再者，本发明实施例所公开的光源装置100、100a还能在围墙5形成有连接于上梯面52与下阶面53的倾斜面55，以构成夹角小于90度的收容沟56，进而能通过收容沟56来容纳部分黏着胶9。
另，本发明实施例所公开的光源装置100、100a，其通过所述光侦测器7所产生侦测光电流来决定所述激光单元是否运作，据以避免因为透光件8的损坏而使自激光单元6发出的光线伤害到人眼，进而能被应用于保护人眼的装置(如：可携式通讯设备1000)中。
以上所述仅为本发明的优选可行实施例，并非用来局限本发明的保护范围，凡依本发明专利范围所做的均等变化与修饰，皆应属本发明的权利要求书的保护范围。

Claims (17)

1.一种光源装置，包括：
一基板，包含有位于相反侧的一第一板面与一第二板面；
一电极层，设置于所述基板的所述第一板面；
一围墙，设置于所述第一板面上；
一激光单元与一光侦测器，彼此间隔地安装于所述电极层、并位于所述围墙内侧；其中，所述激光单元是用来发出一不可见光线；以及
一透光件，设置于所述围墙上且覆盖所述激光单元与所述光侦测器；
其中，所述激光单元接收一预定电流后而朝所述透光件发出所述不可见光线，所述光侦测器接收自所述透光件反射的部分所述不可见光线而产生一初始光电流；
其中，当所述激光单元接收一操作电流，以使所述光侦测器产生的一侦测光电流低于所述初始光电流的一第一比例或高于所述初始光电流的一第二比例时，所述激光单元停止接收所述操作电流。
2.依据权利要求1所述的光源装置，其中，所述第一比例为70％，所述第二比例为136％。
3.依据权利要求1所述的光源装置，其中，所述第一比例为52.3％，所述第二比例为130.8％。
4.依据权利要求1所述的光源装置，其中，所述激光单元发出的所述不可见光线穿过所述透光件，而于水平方向形成介于40度至115度的一远场发散角，并于垂直方向形成介于40度至115度的一远场发散角。
5.依据权利要求1所述的光源装置，其中，当所述光侦测器产生的所述侦测光电流介于所述初始光电流的所述第一比例和所述初始光电流的所述第二比例之间时，所述光源装置符合IEC60825标准的class 1规范。
6.依据权利要求1所述的光源装置，其中，所述光源装置的工作距离为100毫米，光圈为7毫米，且所述光源装置的功率不大于3.79毫瓦，以符合IEC60825标准中的class 1规范。
7.依据权利要求1所述的光源装置，其中，所述激光单元为一垂直共振腔面射型雷射，并用以发出一红外光线。
8.依据权利要求1所述的光源装置，其中，所述激光单元包含有一发光面，并且所述发光面朝向所述透光件正投影所形成的一投影区域，其位于所述透光件的外轮廓内侧。
9.依据权利要求1所述的光源装置，其中，所述操作电流为直流电流时，所述操作电流小于1.2安培，且所述光源装置的功率不大于3.79毫瓦。
10.依据权利要求9所述的光源装置，其中，所述操作电流由所述光源装置的可接受雷射辐射上限搭配一上限使用条件和一下限使用条件所限定，所述上限使用条件为所述透光件覆盖所述光侦测器及所述激光单元，所述下限使用条件为所述透光件覆盖所述激光单元，并且所述透光件于所述上限使用条件中的尺寸大于所述透光件于所述下限使用条件中的尺寸。
11.依据权利要求10所述的光源装置，其中，所述操作电流定义为x，所述侦测光电流定义为y；于所述上限使用条件中，所述操作电流与所述侦测光电流满足以下关系式y＝-0.0002x2+1.2873x-264.86；于所述下限使用条件中，所述操作电流与所述侦测光电流满足以下关系式y＝-0.0001x2+0.7039x-178.65。
12.依据权利要求1所述的光源装置，其中，所述操作电流为脉冲电流时，所述操作电流不大于2安培，且所述光源装置的功率不大于3.79毫瓦。
13.依据权利要求12所述的光源装置，其中，所述操作电流由所述光源装置的可接受雷射辐射上限及占空比搭配一上限使用条件和一下限使用条件所限制，所述上限使用条件为所述透光件覆盖所述光侦测器及所述激光单元，所述下限使用条件为所述透光件覆盖所述激光单元，并且所述透光件于所述上限使用条件中的尺寸大于所述透光件于所述下限使用条件中的尺寸。
14.依据权利要求1所述的光源装置，其中，所述光侦测器具有呈矩形的一光接收区，并且所述光接收区的一长度方向垂直于所述围墙的一长度方向。
15.依据权利要求1所述的光源装置，其中，所述透光件包含有一透光玻璃板和设置于所述透光玻璃板的一光扩散聚合物层，并且所述光扩散聚合物层面向所述激光单元与所述光侦测器。
16.依据权利要求15所述的光源装置，其中，所述光扩散聚合物层包含有面向所述激光单元与所述光侦测器的多个光学微结构，所述激光单元包含有一发光面，并且所述发光面朝向所述光扩散聚合物层正投影所形成的一投影区域，其位于多个所述光学微结构的外轮廓内侧。
17.一种可携式通讯设备，包括：
依据权利要求1所述的一光源装置；以及
一控制单元，电性耦接于所述光源装置的所述光侦测器、并能用来控制所述操作电流提供至所述激光单元；其中，当所述光侦测器产生的所述侦测光电流少于所述初始光电流的所述第一比例或高于所述初始光电流的所述第二比例时，所述控制器停止对所述激光单元提供所述操作电流。
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