Abstract: A lamp body to be releasably coupled to a mounting surface. The lamp body comprises a mount post and a cantilevered lock. The mount post is configured to be received in a mounting hole in the mounting surface, where the mount post is configured to slide between a releasing portion of the mounting hole and a locking portion of the mounting hole. The cantilevered lock is configured to releasably engage with a stop on the mounting surface when the mount post slides into the locking portion of the mounting hole to retain the mount post within the locking portion of the mounting hole.

Abstract: A ring generating LED lamp includes a lens section which employs internal reflection to direct the light energy from a hemispherical emitter into a ring shaped output distribution. The ring shaped distribution projects above and below the plane of the LED source. The lens has multiple internal surfaces that direct light from the LED source to provide a ring shaped output distribution.

Abstract: An optical waveguide for use in converting the distribution pattern of light from a limited output light source, such as an LED, to a substantially unlimited, rotationally symmetric distribution pattern. The optical waveguide includes a guide, a collection optic and a distribution optic. The collection optic includes both refractive and reflective portions, while the distribution optic includes a first reflective optical surface and a second refractive optical surface. The first and second optical surfaces act in combination to minimize the virtual focal region of the waveguide. The waveguide is suitable for use in a number of applications involving an outer lens or secondary optic. For instance, the waveguide may be used in the lighting unit of warning barricade device, wherein the light distributed by the waveguide is transmitted to the outside environment through a fresnel lens.