Patent ID: 8348676

Claim:
An apparatus comprising: A light curtain assembly, the light curtain assembly including: a housing assembly; programmable controls coupled with the housing assembly; a teaching actuator operatively coupled with the programmable controls; an access door coupled with a portion of the housing assembly, the access door having a closed position and an open position, the access door preventing access to the programmable controls and the teaching actuator through the access port when the access door is disposed in the closed position, the access door structured as slidable, as rotatable, as operably elevated, or combinations thereof to provide access to the programmable controls otherwise protected by the access door; one or more visual indicators, wherein the teaching actuator is released in a predetermined amount of time after a change in visual indication of the visual indicators, and programming of the programmable controls is implemented; and a sensor configured to sense whether the access member door is in the closed position or in the open an access position.