发明名称 |
Process and apparatus for three-dimensional surveying |
摘要 |
The invention relates to process and apparatus for three-dimensional surveying by triangulation with a laser beam source. Pursuant to known practice, a laser beam scans a scene to be surveyed, by means of controlled rotary positioning of a mirror. The reflected beam is detected by a linear array of photosensitive receptors, enabling the location of the illuminated point to be determined by triangulation. Significant to the invention is the use of a secondary light source for precision measurement of the angular location of the scanning mirror, rather than relying upon controlled positioning of the mirror, which is much less accurate.
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申请公布号 |
US4873449(A) |
申请公布日期 |
1989.10.10 |
申请号 |
US19880152137 |
申请日期 |
1988.02.04 |
申请人 |
PARAMYTHIOTI, MICHEL;D'ALIGNY, AUGUSTE |
发明人 |
PARAMYTHIOTI, MICHEL;D'ALIGNY, AUGUSTE |
分类号 |
G01C7/00;G01B11/00;G01C3/10;G01C11/00;G01C15/00;G01S17/46 |
主分类号 |
G01C7/00 |
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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