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发明名称
光收发讯装置
摘要
本发明提供一种能够精度良好地检测来自外部之入射光之光收发讯装置。光收发讯装置1中,在光透过部件27之前面27a形成有从前方看通过开口部22和针孔23之间,且在光透过部件27侧面开口之槽28,遮光树脂部3到达该槽28内。藉此,即使从LD 9射出之一部分光在光透过部件27内多次反射,亦可藉由槽28内之遮光树脂部3防止多次反射后之光作为无用光到达PD 12。因此,可防止检测出起因于该无用光之杂讯电流,可精度良好地检测来自外部之入射光。
申请公布号
TWI392249
申请公布日期
2013.04.01
申请号
TW096117594
申请日期
2007.05.17
申请人
滨松赫德尼古斯股份有限公司 日本
发明人
柴山胜己
分类号
H04B10/04;H04B10/06
主分类号
H04B10/04
代理机构
代理人
陈长文 台北市松山区敦化北路201号7楼
主权项
地址
日本
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