Abstract: A light projector including a light source coupled to a base and a lens assembly. A sheath can be overmolded over the base and can form a locator sleeve. An aperture can be overmolded over the light source. The locator sleeve can fix the spatial relationship between the light source and the lens assembly. The lens assembly can include a spacer to fix the spatial relationship between two or more lenses in the lens assembly. A thermal management system can be coupled to the sheath to help reduce the temperature of the light projector.

Abstract: An illumination assembly includes a polymeric substrate, an electrical circuit including two conductors supported by the polymeric substrate, an LED electrically coupled to the two conductors, and a heat spreader thermally coupled to the LED. The two conductors can be printed on the polymeric substrate, embedded within the polymeric substrate, or lie atop the polymeric substrate. The illumination assembly may be fabricated in three-dimensional form factors.

Abstract: An underwater lamp with improved light distribution for underwater applications. The underwater lamp includes a circuit trace having non-coplanar circuit segments, LEDs mounted on the non-coplanar circuit segments so as to emit light in nonparallel directions, and a lens. The lens includes lens portions aligned with the LEDs on the circuit trace circuit segments. The lens may be a thermoplastic material encapsulating the LEDs and the circuit trace.

Abstract: A method of injection molding uses different mold inserts, such as lead frames, to selectively control material flow in order to produce different parts in a common mold. One mold insert can have a different geometry than another mold insert so that molten material is either blocked or allowed to flow through corresponding portions of the mold inserts. By changing out the insert used for injection molding, insert-molded plastic parts produced in the mold can differ by at least one part feature.

Abstract: The specification discloses a flashing lamp circuit including (1) at least one LED, (2) a dual-BJT astable multivibrator, and (3) a BJT/MOSFET pair that functions as both (a) a switch between the multivibrator and the lamp and (b) a current regulator for the at least one LED.

Abstract: An underwater lamp with improved light distribution for underwater applications. The underwater lamp includes a circuit trace having non-coplanar circuit segments, LEDs mounted on the non-coplanar circuit segments so as to emit light in nonparallel directions, and a lens. The lens includes lens portions aligned with the LEDs on the circuit trace circuit segments. The lens may be a thermoplastic material encapsulating the LEDs and the circuit trace.

Abstract: An illumination assembly includes a polymeric substrate, an electrical circuit including two conductors supported by the polymeric substrate, an LED electrically coupled to the two conductors, and a heat spreader thermally coupled to the LED. The two conductors can be printed on the polymeric substrate, embedded within the polymeric substrate, or lie atop the polymeric substrate. The illumination assembly may be fabricated in three-dimensional form factors.

Abstract: An underwater lamp with improved light distribution for underwater applications. The underwater lamp includes a circuit trace having non-coplanar circuit segments, LEDs mounted on the non-coplanar circuit segments so as to emit light in nonparallel directions, and a lens. The lens includes lens portions aligned with the LEDs on the circuit trace circuit segments. The lens may be a thermoplastic material encapsulating the LEDs and the circuit trace.

Abstract: An LED fault detection circuit is provided for detecting a fault in at least one LED. The circuit may include a test voltage generator for applying at least one test voltage level to the at least one LED, wherein the at least one test voltage level is less than a nominal operating voltage range; a current measuring circuit for measuring at least one current draw by the at least one LED at the at least one test voltage level; and a processing circuit coupled to the test voltage generator for causing the at least one test voltage level to be applied to the at least one LED, the processing circuit coupled to the current measuring circuit for detecting a fault in the at least one LED when the at least one measured current draw has a profile that does not correspond to an expected current draw profile.

Abstract: The specification discloses a flashing lamp circuit including (1) at least one LED, (2) a dual-BJT astable multivibrator, and (3) a BJT/MOSFET pair that functions as both (a) a switch between the multivibrator and the lamp and (b) a current regulator for the at least one LED.

Abstract: A method of injection molding uses different mold inserts, such as lead frames, to selectively control material flow in order to produce different parts in a common mold. One mold insert can have a different geometry than another mold insert so that molten material is either blocked or allowed to flow through corresponding portions of the mold inserts. By changing out the insert used for injection molding, insert-molded plastic parts produced in the mold can differ by at least one part feature.

Abstract: An illumination assembly including a light pipe and a light supply for use in illuminating shelf dividers on a shelf. The light pipe includes a first end portion including a light inlet, a second end portion including a light outlet, and a body portion extending between the first and second end portions. The light supply directs light into the light inlet, whereby at least a portion of the light subsequently exits the light pipe through the light outlet. When the first end portion is positioned adjacent a rear edge of the shelf, the body portion extends from the rear edge to a front edge of the shelf. The light pipe is configured to transmit at least a portion of the light emitted by the light supply from the light inlet to the light outlet to illuminate an area adjacent the shelf front edge.

Abstract: An illumination assembly including a light pipe and a light supply for use in illuminating shelf dividers on a shelf. The light pipe includes a first end portion including a light inlet, a second end portion including a light outlet, and a body portion extending between the first and second end portions. The light supply directs light into the light inlet, whereby at least a portion of the light subsequently exits the light pipe through the light outlet. When the first end portion is positioned adjacent a rear edge of the shelf, the body portion extends from the rear edge to a front edge of the shelf. The light pipe is configured to transmit at least a portion of the light emitted by the light supply from the light inlet to the light outlet to illuminate an area adjacent the shelf front edge.

Abstract: An illumination assembly including a light pipe and a light supply for use in illuminating shelf dividers on a shelf. The light pipe includes a first end portion including a light inlet, a second end portion including a light outlet, and a body portion extending between the first and second end portions. The light supply directs light into the light inlet, whereby at least a portion of the light subsequently exits the light pipe through the light outlet. When the first end portion is positioned adjacent a rear edge of the shelf, the body portion extends from the rear edge to a front edge of the shelf. The light pipe is configured to transmit at least a portion of the light emitted by the light supply from the light inlet to the light outlet to illuminate an area adjacent the shelf front edge.

Abstract: A light assembly including a light pipe and a plurality of light sources. The light pipe is an elongated, single, unitary piece having a generally linear light-exiting surface along one edge. The light pipe includes a plurality of lens portions along its length. Each lens portion forms a portion of the light existing surface. Each light source is associated with one of the lens portions to emit light into the lens portion and, therefore, the light pipe as a whole. The light from the light sources mixes within the light pipe before exiting the light pipe through the light-exiting surface in a generally linear pattern.

Abstract: A light assembly including a light pipe and a plurality of light sources. The light pipe is an elongated, single, unitary piece having a generally linear light-exiting surface along one edge. The light pipe includes a plurality of lens portions along its length. Each lens portion forms a portion of the light existing surface. Each light source is associated with one of the lens portions to emit light into the lens portion and, therefore, the light pipe as a whole. The light from the light sources mixes within the light pipe before exiting the light pipe through the light-exiting surface in a generally linear pattern.

Abstract: An LED fault detection circuit is provided for detecting a fault in at least one LED. The circuit may include a test voltage generator for applying at least one test voltage level to the at least one LED, wherein the at least one test voltage level is less than a nominal operating voltage range; a current measuring circuit for measuring at least one current draw by the at least one LED at the at least one test voltage level; and a processing circuit coupled to the test voltage generator for causing the at least one test voltage level to be applied to the at least one LED, the processing circuit coupled to the current measuring circuit for detecting a fault in the at least one LED when the at least one measured current draw has a profile that does not correspond to an expected current draw profile.

Abstract: An illumination assembly includes a light pipe and a light engine. The light pipe has a first edge portion including a light inlet, a first surface including a first light outlet, and a second edge portion including a second light outlet. The light engine is attached to the first edge portion and includes a light source adapted to direct light into the light inlet, whereby light subsequently exits the light pipe through the first light outlet and the second light outlet. The illumination assembly can be used as part of an illuminated sign assembly to provide backlighting and downlighting.

Abstract: An illumination assembly including a light pipe and a light supply for use in illuminating shelf dividers on a shelf. The light pipe includes a first end portion including a light inlet, a second end portion including a light outlet, and a body portion extending between the first and second end portions. The light supply directs light into the light inlet, whereby at least a portion of the light subsequently exits the light pipe through the light outlet. When the first end portion is positioned adjacent a rear edge of the shelf, the body portion extends from the rear edge to a front edge of the shelf. The light pipe is configured to transmit at least a portion of the light emitted by the light supply from the light inlet to the light outlet to illuminate an area adjacent the shelf front edge.

Abstract: An illumination assembly includes a polymeric substrate, an electrical circuit including two conductors supported by the polymeric substrate, an LED electrically coupled to the two conductors, and a heat spreader thermally coupled to the LED. The two conductors can be printed on the polymeric substrate, embedded within the polymeric substrate, or lie atop the polymeric substrate. The illumination assembly may be fabricated in three-dimensional form factors.