Eye-safe laser line striper for outside use

Abstract

Collision warning or autonomous driving in cluttered environments like urban areas require short-range high-resolution sensors. Rangefinders using laser triangulation fulfil these requirements but they face the additional challenge of operating in bright sunlight while remaining eye-safe. The laser line striper introduced in this paper achieves all these requirements without the need of expensive components. The sensor can be built with a variety of field-of-views.