Patent Number: 6,294,777

Title: Modular articulated light curtain

Abstract: A modular articulated light curtain is formed by combining straight, curved, or angled modules with straight or angled couplers. Modules include an array of pitched light emitters or light detectors, and have rounded distal ends that mate, mechanically and electrically, with each other or with a coupler. Interconnection of adjacent modules is such that a constant pitch of light emitters or light detectors is maintained. The light curtain comprises an assembly of interconnected light emitting modules spaced-apart from interconnected light detecting modules. One end of each assembly is terminated, while the other assembly end has a cable end module that may include at least one light emitter or detector, and may include a visual indicator, and provides input/output electrical interface to the light curtain.

Inventors: Shteynberg; Boris (San Francisco, CA), Ashford; James A. (Portola Valley, CA)

Assignee: Scientific Technologies Incorporated

International Classification: G01V 8/20 (20060101); G01V 8/10 (20060101); G01V 009/04 ()

Expiration Date: 09/25/2018