One non-limiting example of an LED system for a lighting assembly includes a heat sink having a plurality of base plates. Each of the base plates has a pair of opposing edges disposed adjacent to a corresponding one of the other base plates. Additionally, each base plate has an outer face extending between the opposing edges; and the LED system further includes a plurality of LEDs attached to the outer face of each base plate. A fan is releasably attached to a bottom portion of the heat sink and configured to produce a flow of air through the heat sink from the bottom portion through a top portion of the heat sink to maintain an operating temperature of the LED system.

The invention describes an integral lighting assembly (1A, 1B, 1C, 1D, 1E) comprising an optical arrangement (2, 3); a first light source (S.sub.1) for generating a first beam (L.sub.1) of light; a first collimator (C.sub.1) for directing the first beam (L.sub.1) at the optical arrangement (2, 3); a second light source (S.sub.2) for generating a second beam (L.sub.2) of light; and a second collimator (C.sub.2) for directing the second beam (L.sub.2) at the optical arrangement (2, 3), wherein the optical arrangement (2, 3) is realized to manipulate the first and second light beams (L.sub.1, L.sub.2) to give a first exit beam (BLO) and a second exit beam (BRI) such that the first exit beam (BLO) and the second exit beam (BRI) are partially combined in an overlap region (44) on a projection plane (4) located at a predefined distance from the integral lighting assembly (1A, 1B, 1C, 1D, 1E). The invention further describes an automotive headlamp arrangement (12) comprising such an integral lighting assembly (1A, 1B, 1C, 1D, 1E).

An illumination optical system with a tunable beam angle (IOSTBA) is presented to achieve different beam angles without changing parts. The IOSTBA includes a light source and a post having a proximal end and a distal end, the proximal end in optical communication with the light source, an internal area of the post having a reflective surface. Also shown is a diffuser disposed across the end of the post, the diffuser in optical communication with the post and a reflector surrounding a portion of the post, the reflector movable along a length of the post. A position of the reflector along the post determines a beam angle of a resulting light beam exiting the IOSTBA. The system features a simple and cost effective optical design which works with a variety of light sources, including color mixing and champing strategies.

The present disclosure relates to a resilient and multipurpose window well installation. The installation comprises numerous different features and optional additional attachments and functionalities. In one embodiment, the installation can increase the amount of light entering into a basement window. In an alternative embodiment, the installation can also protect from influx of flood water through the basement window.

A light source device includes a package, one or more semiconductor lasers each having an emission surface, a light-transmissive cover, and an optical member. The package includes an inner bottom surface and inner lateral surfaces, and a recess defined by the inner bottom surface and the inner lateral surfaces and having an open end. The one or more semiconductor lasers are arranged on the inner bottom surface. The light-transmissive cover covers the open end of the recess. The optical member is arranged on an upper surface of the cover and is configured to mix light. The one or more semiconductor lasers are arranged so that their emission surfaces are respectively oblique to their adjacent inner lateral surface when viewed from above, and the inner lateral surface has a reflecting region arranged inclined with respect to the bottom surface.

A lighting unit includes a board on which a light emitting portion having a semiconductor light emitting device is arrayed on an upper side along the longitudinal direction. The lighting unit also includes a reflector which is disposed on the upper side of the board, and has a reflection portion inside the reflector for reflecting a light from the light emitting portion, as well as covering the light emitting portion. The lighting unit further includes a case disposed so as to support the board and the reflector from the top and the bottom.

A light emitting assembly and method for making optionally includes a light source configured to emit light substantially about a plane, the light having a first spectral profile, and a material configured to shift light incident from the light source from the first spectral profile to a second spectral profile and emit light as shifted. The light, as shifted, is emitted from the assembly generally along an axis orthogonal to the plane.

A light projector intended to produce a directional flat light beam includes an elongate cylindrical lens and a linear light source parallel to the generatrix direction, extending over all or part of the length of the lens to emit light in the direction of the lens. The lens is designed to generate a principal flat light beam by concentrating the light in a predefined elevation angular sector around the horizontal generatrix direction. The light projector also includes a deflector having a rectangular plate shape positioned on the side opposite the light source. A signalling beacon including such a projector is also described.

A wavelength conversion material array is provided, including a system comprising: a light source configured to emit excitation light at an excitation wavelength; a heatsink; a wavelength conversion material located on the heatsink, the wavelength conversion material comprising a relative wavelength conversion area of unity divided into an array of spots, a number of the spots in a range of 4 to 12, the wavelength conversion material configured to emit light at a wavelength greater than the excitation wavelength when irradiated by the excitation light; and, an array of lenslets configured to: receive the excitation light from the light source and irradiate each of the spots of the wavelength conversion material with the excitation light, the lenslets in a one-to-one relationship with the number of spots; and collect the light emitted by the wavelength conversion material.

A light fixture optimized for directional lighting, including LED lighting, includes a fixture housing, further including a lighting element shelf and a window opening; a reflector, which is configured with a special parabolic shape, a lighting element which is mounted on an inside surface of the lighting element shelf, such that light emitted from the lighting element will reflect at least one time on the reflector, before exiting the light fixture via the window opening as a wide and uniform field of asymmetric indirect illumination. The light fixture can be configured in versions suitable for wall illumination, conference room illumination, ceiling illumination, ground surface illumination, and related illumination applications for interior and exterior use.