公开(公告)号：US5448235A

公开(公告)日：1995-09-05

申请号：US116592

申请日：1993-08-30

Applicant: Robert O'Neill, Jr. ,  Judith B. Snow

Inventor： Robert O'Neill, Jr. ,  Judith B. Snow

IPC: B63B45/02 ,  G08G3/00

CPC classification number: B63B45/02 ,  G08G3/00

Abstract: A method and system are provided for marking marine channels. A single laser beam is selectively interrupted to produce an identifying on/off laser beam sequence distinguishable by the human eye. The laser beam is then expanded in terms of beam diameter during specifically timed periods of laser beam transmission. The expanded laser beam is projected along a beam path that is substantially along the center of a marine channel to be marked at a height above the water's surface. The height of the beam path is selected such that marine traffic may pass under the beam path without obstructing same.

Abstract translation: 提供了一种用于标记海洋通道的方法和系统。 选择性地中断单个激光束以产生由人眼可辨别的识别开/关激光束序列。 然后在激光束传输的特定定时周期期间，根据光束直径来扩大激光束。 扩大的激光束沿着大致沿着海洋通道的中心的光束路径投影，以在水表面上方的高度被标记。 选择光束路径的高度，使得海上交通可以在光束路径下方通过而不会妨碍。