An exemplary lantern comprising a signal member which serves as a safety feature to warn workers operating in a railyard of dangerous or potentially dangerous conditions. An exemplary lantern comprising a breakaway handle mechanism that allows the handle of the lantern to break away from the body of the lantern. An exemplary lantern may comprise a ratcheting mechanism that allows the handle to rotate relative to the body of the lantern, thereby allowing the lantern to be arranged on the ground in a variety of different positions.

The invention relates to a luminous device (5) and a method for managing said device (5), comprising LED lighting means (51), a dissipative electric load (52) adapted to increase an electric power dissipated by the device (5) when the LED lighting means (51) are emitting light, and current interrupting means (53) configured for dynamically interrupting the flow of current through said dissipative load (52) when the LED lighting means (51) are emitting light, so as to reduce the electric power dissipated by said device (5).

A modular lamp system (200) for a railroad crossing warning device includes a crossing lamp (210) and a crossing lamp base (220) controllable by a wayside control device (40), and a module (230) comprising an electronic circuit (250), wherein the crossing lamp base (220) is configured to provide power to the crossing lamp (210) and the module (230), and wherein, when the crossing lamp (210), the crossing lamp base (220) and the module (230) are assembled and in operation, the crossing lamp (210) performs a first action and the module (230) performs a second action, which is different from the first action.

A rail signal arrangement for a rail signaling system comprises a rail signal having a rail signal lamp including a plurality of light emitter sub-arrays each comprising a light emitter, wherein the light emitter sub-arrays are electrically connected in parallel. A control circuit is provided and configured to operate the rail signal lamp in response to operating instructions from a remote operations management system, detect the proportion of light emitter sub-arrays that are in an operable condition with a monitoring system, and provide a condition status signal to the remote operations management system in accordance with whether the proportion of light emitter sub-arrays in an operable condition meets a minimum threshold level.

A rail signal arrangement for a rail signaling system comprises a rail signal having a rail signal lamp including a plurality of light emitter sub-arrays each comprising a light emitter, wherein the light emitter sub-arrays are electrically connected in parallel. A control circuit is provided and configured to operate the rail signal lamp in response to operating instructions from a remote operations management system, detect the proportion of light emitter sub-arrays that are in an operable condition with a monitoring system, and provide a condition status signal to the remote operations management system in accordance with whether the proportion of light emitter sub-arrays in an operable condition meets a minimum threshold level.

A light emitting diode (LED) shielding and monitoring system includes multiple light emitting diodes (LEDs) (12, 14, 82, 92), multiple optical detectors (20, 84, 94) for detecting a light output of the plurality of LEDs (12, 14, 82, 92), and a LED shield (30, 110) with multiple compartments (38, 114) for receiving the multiple optical detectors (20, 84, 94). The LED shield (30, 110) is configured such that each compartment (38, 114) receives an optical detector (20, 84, 94), and wherein each compartment (38, 114) is configured such that the optical detector (20, 84, 94) within the compartment (38, 114) detects the light output of a LED (12, 14, 82, 92) of the multiple LEDs (12, 14, 82, 92) without detecting light output other than the light output of the LED (12, 14, 82, 92). Further, wayside LED signals including a LED shielding and monitoring system are provided.

A railroad signal includes a mounting bracket and a signal head, the signal head being mounted to another structure by the mounting bracket, wherein the signal head includes a signal housing, a plurality of signal lights positioned in the signal housing, and a protection device for reducing or eliminating wind forces, the protection device comprising a snow shield and at least one wind guide element.

A railroad crossing warning system and method that include an obstruction detection system establishing a surveillance zone at a railroad crossing configured to detect the presence of an obstruction on a railroad track. A communication system is configured to transmit a warning to a railroad operator when an obstruction is detected within the surveillance zone.

A railroad crossing warning system and method that include an obstruction detection system establishing a surveillance zone at a railroad crossing configured to detect the presence of an obstruction on a railroad track. A communication system is configured to transmit a warning to a railroad operator when an obstruction is detected within the surveillance zone.

An optical system (100) for a light emitting diode (LED) signal includes a plurality of light emitting diodes (LEDs) (12, 14), a plurality of optical lenses (20, 40, 60, 80) for diverging and collimating light generated by the plurality of LEDs (12, 14), wherein the plurality of LEDs (12, 14) and the plurality of optical lenses (20, 40, 60, 80) are sequentially arranged in an axial direction, and wherein the plurality of optical lenses (20, 40, 60, 80) are configured such that by altering an axial position of one of the optical lenses (20, 40, 60, 80) from a first defined axial position to a second defined axial position, a final angular light distribution of the optical system (100) is variable.