Light grid for detecting objects in a monitoring region

Details Light grid for detecting objects in a monitoring region Light grid for detecting objects in a monitoring region

2006-07-25

2006-07-25

Tran, Thuy Vinh (Department: 2821)

Electric lamp and discharge devices: systems

With signal, indicator, or alarm

Radiant energy responsive control type

C250S221000, C340S556000

Reexamination Certificate

active

07081713

ABSTRACT:
A light grid is provided for the detection of objects in a monitoring region having a transmitter unit comprising a plurality of light transmitters and a receiver unit comprising a plurality of light receivers in which respective pairs of light transmitters and light receivers associated with one another and bounding the monitoring region can be activated in succession in time in dependence on a synchronization signal transmitted between the transmitter unit and the receiver unit, with at least one light guide being provided for the transmission of the synchronization signal.

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