Abstract: The present invention is directed to a surface mount circuit board indicator. In one embodiment the surface mount circuit board indicator includes a printed circuit board (PCB) having at least one light emitting diode (LED) die, one or more traces and at least one lens, a housing comprising at least one opening on a side along a perimeter of the housing, wherein the PCB is coupled to the housing such that a light output surface of the at least one LED die faces a same direction as the at least one opening and at least one alignment pin coupled to the housing.

Abstract: The present invention is directed to a surface mount circuit board indicator. In one embodiment the surface mount circuit board indicator includes a printed circuit board (PCB) having at least one light emitting diode (LED) die, one or more traces and at least one lens, a housing comprising at least one opening on a side along a perimeter of the housing, wherein the PCB is coupled to the housing such that a light output surface of the at least one LED die faces a same direction as the at least one opening and at least one alignment pin coupled to the housing.

Abstract: The present invention is directed to a surface mount circuit board indicator. In one embodiment the surface mount circuit board indicator includes a printed circuit board (PCB) having at least one light emitting diode (LED) die, one or more traces and at least one lens, a housing comprising at least one opening on a side along a perimeter of the housing, wherein the PCB is coupled to the housing such that a light output surface of the at least one LED die faces a same direction as the at least one opening and at least one alignment pin coupled to the housing.

Abstract: The present invention is directed to a surface mount circuit board indicator. In one embodiment the surface mount circuit board indicator includes a printed circuit board (PCB) having at least one light emitting diode (LED) die, one or more traces and at least one lens, a housing comprising at least one opening on a side along a perimeter of the housing, wherein the PCB is coupled to the housing such that a light output surface of the at least one LED die faces a same direction as the at least one opening and at least one alignment pin coupled to the housing.

Abstract: A multi-level optical device that includes a housing. Further, a multi-level lightpipe is placed in the housing and includes at least two paths for passing light. A lightpipe barrier can optionally be placed between the at least two paths in the multi-level lightpipe, to provide enhanced separation between the light passing through the two paths. Further, a plurality of light emitting diodes (LEDs) are provided in the housing. Respective ones of the plurality of LEDs provide light input into a respective one of the paths of the multi-level lightpipe. The multi-level lightpipe can take the form of a bi-level prism, and the plurality of LEDs may be multi-color LEDs. A light-bleeding preventing device can be positioned between the at least two paths in the multi-level lightpipe. The multi-level lightpipe can also include plural multi-level lightpipes arranged in a row to create a matrix of output light signals.

Abstract: A multi-level optical device that includes a housing. Further, a multi-level lightpipe is placed in the housing and includes at least two paths for passing light. A lightpipe barrier can optionally be placed between the at least two paths in the multi-level lightpipe, to provide enhanced separation between the light passing through the two paths. Further, a plurality of light emitting diodes (LEDs) are provided in the housing. Respective ones of the plurality of LEDs provide light input into a respective one of the paths of the multi-level lightpipe. The multi-level lightpipe can take the form of a bi-level prism, and the plurality of LEDs may be multi-color LEDs. A light-bleeding preventing device can be positioned between the at least two paths in the multi-level lightpipe. The multi-level lightpipe can also include plural multi-level lightpipes arranged in a row to create a matrix of output light signals.

Abstract: 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.

Abstract: A surface mounted LED package according to the invention includes a housing having a generally rectangular parallelepipedal shape. A lens is received in a passageway in the housing and has a radiating surface extending beyond the surface of the housing, a rear light collecting surface, and a cavity to receive an LED. An LED is received in the lens cavity. Conductive spring clips engage the housing and make electrical contact with the LED.

Abstract: A holder for a discharge lamp having a bi-pin base includes a housing with two pairs of opposed walls connected to form a lamp base receiving recess therebetween, a resilient clip and an opposed pair of electrical conductors. The clip and the conductor pair are disposed in the housing for gripping the lamp base and for electrically engaging the lamp pins, respectively, of a lamp received into the holder.The housing further includes four internal cooling passages partly formed by two directly facing and opposed rib pairs provided on the respective housing walls. The passages open to the ambient atmosphere. The resilient clip has good thermally conductive properties.