发明授权
US3599143A Visual surface guidance apparatus 失效
可视表面指导装置

Visual surface guidance apparatus
摘要:
Guidance apparatus providing lateral and longitudinal visual guidance information to the operator of an aircraft or other vehicle to facilitate vehicular surface maneuvering. A light projection apparatus and a filter provide several multicolor laterally disposed beam segments to provide course guidance and also provide a longitudinal guidance beam portion positioned either above or below the laterally disposed segments to be undershot or overshot by the line of vision of the vehicle operator.
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