Dialight Corporation

Rand J Eikelberger

Yubo Yang

Anthony Verdes

Klaus Oesterheld

John Richard Sanderson

A wayside signal for a railway includes a plurality of light emitting diodes housed in a housing. The light emitting diodes output indication signals. Further, the light emitting diodes are configured on a first circuit board which is thermally coupled to the housing. The housing may also include heat sink fins to dissipate heat generated by the light emitting diodes and associated driving circuitry for driving the light emitting diodes also contained within the housing. An additional light emitting diode may also be contained within the housing to point in an opposite direction than the indication signal light emitting diodes, which additional light emitting diode may be formed on a second circuit board with the driving circuitry. The additional light emitting diode provides an indication to anyone behind the wayside signal as to the indication of the wayside signal. The wayside signal is further optimized for thermal efficiency and to be sealed against the elements. In regard to thermal efficiency, the first circuit board may be metal clad and the housing may be formed of black anodized aluminum. Also, a plastic insulator may be attached to the housing and covered with a lamp base. The lamp base may be configured to be inserted into a conventional socket for a wayside signal, so that the wayside signal of the present invention can be utilized with existing circuitry.

LED wayside signal for a railway

An obstruction lamp which replaces conventional incandescent light bulbs and which utilizes light emitting diodes (LEDs) in an illumination unit. The obstruction lamp includes a first plurality of LEDs connected in series. The first plurality of LEDs are mounted onto a metal vertical cylinder which provides a heat sinking for the first plurality of LEDs. A lens is configured to cover the first plurality of LEDs and the metal vertical cylinder. A metal base is provided on which the first plurality of LEDs, the metal vertical cylinder, and the lens are mounted. Further, a clamp is configured to seal the lens to the metal base. A second plurality of LEDs may be connected electrically independently of the first plurality of LEDs and may be mounted on top of the metal vertical cylinder. A wire housing may be configured to attach to the metal base and to provide electrical connection to the first and/or second plurality of LEDs. An adapter may be configured to attach to the metal base and to an existing incandescent obstruction lamp housing. The metal vertical cylinder can include driving circuit boards configured to drive the first and/or second plurality of LEDs. The first plurality of LEDs may be high power LEDs and the second plurality of LEDs may be lower power LEDs which are provided more for aesthetic purposes than for providing light output.

Led obstruction lamp

Combined lens for clearance sidemarker and identification lamp

Lens for clearance sidemarker and identification lamp

Lens for a combined lens clearance sidemarker and identification lamp

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Allenwood, NJ, United States of America

Rand J Eikelberger