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发明名称
光电式编码器
摘要
本发明之光电式编码器具备有:照明光源11;移动格子15,可在与格子线交叉方向移位;指标格子13,系移动格子15之移位基准;受光元件16,接收经由该移动格子15以及该指标格子13之该照明光;调变装置17,系使从该指标格子13射出之光产生周期性改变;以及移位检测装置22、23,根据该受光元件16接收之该照明光强度之经时变化,检测出该移动格子之移位。藉此,即使格子产生姿势改变,亦可正确产生表示移动体之移位之讯号。
申请公布号
TW200628765
申请公布日期
2006.08.16
申请号
TW094144070
申请日期
2005.12.13
申请人
尼康股份有限公司;仙台尼康股份有限公司
发明人
今井亨
分类号
G01D5/347
主分类号
G01D5/347
代理机构
代理人
林镒珠
主权项
地址
日本
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