CPC G08B 5/36 (2013.01) [F16P 3/14 (2013.01); G01V 8/20 (2013.01)] | 20 Claims |
1. A light curtain status indicator, comprising:
a light emitting module comprising a refractive cover and configured to emit a visual indicium at a wide angle corresponding to a status of at least one predetermined signal; and,
a coupling member configured to be releasably captured within a longitudinally extending channel of a housing of a light curtain, such that the light curtain status indicator is disposed on a side of and substantially parallel to the housing, wherein the light emitting module emits the visual indicium in an emitting plane intersecting an optical axis of the light curtain, and,
when the light curtain status indicator is releasably coupled to the housing, the emitting plane is oriented at an angle α relative to a plane tangential to a mounting surface of the light curtain housing, and α<90°, such that the light emitting module is viewable from at least a 180° viewing angle.
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