LASER BEAM PLANAR REFERENCE

申请公布号：US3684381(A)

申请号：USD3684381

申请日期：1970.03.23

申请公布日期：1972.08.15

申请人：

ATI INC.

发明人：ROBERT M. ZOOT

分类号：G01C15/00;(IPC1-7):G01B11/26

主分类号：G01C15/00

摘要：A device for automatic and passive self-leveling or self-aligning of a laser beam to a predetermined horizontal or vertical position without dependence upon mechanical moving parts. The device utilizes two trays of microscope immersion oil mounted in a suitable frame through which a laser beam is directed. The oil responds to the pull of gravity and automatically corrects for misalignments through small angles up to several minutes of arc so as to restore the alignment of the laser beam. The device includes beam rotating elements which permit projection of the beam in any desired direction.

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