发明名称 |
Distance measuring device |
摘要 |
A distance measuring device projects light pulses towards the subject to be photographed, and PSD 3 receives the reflected light. Its output is amplified 40 and integrated 50 before being compared with a threshold. The numbers of pulses for the integrated outputs to reach the threshold are used to determine distance. Integration occurs only within a selectable part of the pulse repetition interval.
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申请公布号 |
GB2317521(B) |
申请公布日期 |
1998.05.06 |
申请号 |
GB19970025885 |
申请日期 |
1994.06.16 |
申请人 |
* SEIKOSHA CO LTD |
发明人 |
HIROYUKI * SAITO;AKIRA * ITO |
分类号 |
G01S7/491;G01S17/08;G01S17/46;G02B7/32;(IPC1-7):G01S17/46 |
主分类号 |
G01S7/491 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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