Abstract: A luminaire for providing broad uniform surface illumination and sharp cutoff which has at least one quasi point light source, such as an LED, located on an optical axis. There is at least one collimating ring lens which, at least partially surrounds the quasi point light source. The collimating ring projects a radial collimated beam and there is at least one reflective ring, at least partially surrounding the collimating ring lens. The reflecting ring reflects and redirects the collimated radial beam as a canted radial beam through the optical axis. In another embodiment at least one off axis collimating ring lens at least partially surrounds at least one quasi point light source, and projects a canted radial beam away from the optical axis. There is at least one ring reflector which at least partially surrounds the optical axis and is positioned to reflect the canted radial beam toward and through the optical axis.

Abstract: A lumenaire system for providing illumination by distributing and mixing light from multiple sources of illumination which includes a first light source providing Lambertian light radiation and a second light source providing collimated illumination. There is a prismatic light guide structure having at least two functions, the first function being to refract the light radiation from the first light source disposed as to at least partially surround the light source, and the second function is to guide and distribute light from the second light source so as to mix it with light from the first light source.

Abstract: A lumenaire system for providing varied types of illumination having a structural frame with hubs disposed in a spatial configuration and joining members providing structure and stability between said hubs. There are quasi point light sources mounted at specific points on the structural frame for providing a radiant illumination from said lumenaire system and an optical system for distributing the radiant illumination as a specific light pattern.

Abstract: In one form, there is a luminaire for providing uniform color and brightness from multiple small light sources, which includes a shallow plate of transparent material having a first surface which is substantially flat, and a second surface which includes patterned planes acutely disposed to the first surface. Each second surface is adjacent to an entry face into which light from the multiple small light sources is projected into the plane.

Abstract: A luminaire module comprising an LED on an optical axis, thermally mounted to a heat sink, said heat sink comprising openings for which air can circulate; said opening of each portion offset from each other so that light emanating from said LED can pass through the holes from one said portion, said light blocked by the solid area of the other portion.

Abstract: A lighting device that provides a surface that uniformly projects light from single or multiple light sources. It also provides a lighting device that minimizes the number of optical components between the light source and the viewer so as to increase efficiency. It further provides an efficient light projecting surface that can be produced in large sizes, as well as a modular system of components that can be assembled in varied sizes and shapes. Various lighting sources may be used including quasi-point light sources and linear light sources and these light sources may also be used together.

Abstract: A luminaire for providing broad uniform surface illumination and sharp cutoff which has at least one quasi point light source, such as an LED, located on an optical axis. There is at least one collimating ring lens which, at least partially surrounds the quasi point light source. The collimating ring projects a radial collimated beam and there is at least one reflective ring, at least partially surrounding the collimating ring lens. The reflecting ring reflects and redirects the collimated radial beam as a canted radial beam through the optical axis. In another embodiment at least one off axis collimating ring lens at least partially surrounds at least one quasi point light source, and projects a canted radial beam away from the optical axis. There is at least one ring reflector which at least partially surrounds the optical axis and is positioned to reflect the canted radial beam toward and through the optical axis.

Abstract: A full cutoff luminaire having a housing with an open bottom, a vertically mounted lamp centrally located within the housing, a radial reflector surrounding a portion of the lamp and a downwardly extending optic lens having an open top enshrouding a lower portion of the lamp wherein light emitted from the luminaire does not exceed 90° above nadir.

Abstract: An optical assembly for architectural illumination having a quasi point source surrounded by a collimating ring lens designed to radially project collimated beams. A segmented off axis parabolic reflector to collect and reflect light (not gathered by the collimating ring lens) as collimated beams and a segmented ring reflector, the segments of which are arranged to gather beams from both the collimating ring lens and the off axis reflector and then direct them in substantially the same direction.

Abstract: A lens for substantially collimating light in one axis and spreading light in an axis substantially perpendicular to the collimation axis including a lens an entry face which is positive and cylindrical, having a cross-section which includes the positive cylindrical curvature and having tapered sides substantially parallel to the refracted rays produced by the cylinders curvature and a circular convex or a spheric exit face perpendicular to the cylindrical curvature.

Abstract: A lighting assembly includes a quasi-point lamp, a ring lens at least partially surrounding the source to provide a radial beam of light shaped in the form of a disk of sectionally diverging light, and at least one refracting ring to redirect and/or change the beam divergence, and/or at least one reflecting ring to redirect or change the divergence of the beam. A baffle system may be used in conjunction with or in substitution for the refractor or reflector rings to eliminate glare and stray light from the lens or redirect and/or change divergence of the lens. The ring lens surrounding the quasi-point source may be used to divide the illuminating light into radial beams diverging from each other, in which case each radial beam has its own refraction, reflection or baffle assembly. Each radial beam and its attending refraction, reflection and/or baffle assembly is used for specific lighting functions, such as down lighting, ambient lighting, spot or flood lighting and indirect lighting.

Abstract: A lighting assembly or a luminaire has a quasi point light source near a surface onto which light rays are to impinge. There is a lens system which includes a radially collimating first Fresnel lens at least partially surrounding the light source and collimating at least some of the light from the source to impinge upon the surface, and a second optical element, which may also be a Fresnel lens, for receiving light rays and directing the rays to impinge upon the surface at a position closer to the lens system than the rays from the first Fresnel lens. This provides more uniform lighting on the surface since the first Fresnel lens lighting impinges upon the surface at a distance from the assembly, and the second Fresnel lens provides fill in lighting between the assembly and the lighting of the first Fresnel lens.

Abstract: An optical assembly for architectural illumination which includes a quasi point source surrounded by a collimating ring lens designed to radially project collimated beams. A segmented, off axis, parabolic reflector to collect and reflect light (not gathered by the collimating ring lens) as collimated beams and a ring reflector, the segments of which designed to gather beams from both the collimating ring lens and the off axis reflector and the direct them in substantially the same direction.

Abstract: An optical assembly for architectural illumination having a quasi point source surrounded by a collimating ring lens designed to radially project collimated beams. A segmented off axis parabolic reflector to collect and reflect light (not gathered by the collimating ring lens) as collimated beams and a segmented ring reflector, the segments of which are arranged to gather beams from both the collimating ring lens and the off axis reflector and then direct them in substantially the same direction.

Abstract: An optical assembly for architectural illumination which includes a quasi point source surrounded by a collimating ring lens designed to radially project collimated beams. A segmented, off axis, parabolic reflector to collect and reflect light (not gathered by the collimating ring lens) as collimated beams and a ring reflector, the segments of which designed to gather beams from both the collimating ring lens and the off axis reflector and the direct them in substantially the same direction.

Abstract: A mechanical device that allows for changing a lamp that, when in its operating position, is surrounded by an optical system that is close to the lamp and therefore restricts access for lamp removal and accurate replacement within the optical system. This mechanical device may be used in any lighting product with or without an optical system to facilitate lamp/bulb changes. This mechanical device can be integrated into the structure of various lighting products such as table and floor lamps, ceiling fixtures and pendants, and outdoor poles. A lighting product which has been integrated with this lamp change device has the means to radiate light for desired illumination: a lamp (bulb) surrounded by said light radiator, said bulb is connected to a socket which is further connected to a socket mounting means.

Abstract: A light assembly having a light source and a ring lens radially surrounding the light source for substantially collimating light from the light source. There is a prism ring having at least two prism bands surrounding the ring lens and receiving light from it. One of the prism bands is defined by a plurality of reflecting prisms and another of the prism bands is a refracting band. In another arrangement a multi-prism ring reflector surrounds the ring lens and is arranged to have total internal reflection except for exit faces formed therein which are substantially at right angles to the substantially collimated light from the light source. The ring prism bands may be of the same vertical height or they may have different vertical heights with respect to each other. In a further arrangement a prism ring includes at least two prism bands surrounding the ring lens and receiving light therefrom.

Abstract: A light assembly includes a linear light source has a longitudinal axis and a refractor and/or a reflector. A main refractor extends along the length of the light source and parallel thereto. The main refractor has a rear portion coated with a reflecting material in a desired pattern extending along the length of the main refractor.

Abstract: A lighting assembly which includes light source means and collimating means for substantially collimating the light from the source. There are transmission means for transmitting the substantially collimated light to a point remote from the collimating means, and, in one arrangement, having an upper section which allows transmission of light therethrough and a lower section which reflects light. Light direction modifying means such as a lens or a reflector is located in the transmission means and remote from the collimating means for receiving light from the collimating means and modifying the direction of the light to pass outside of the transmission means through the light-transmitting section. The light direction modifying means includes a large plurality of prisms on the outer surface thereof. The prisms may be arranged so that the radii of several adjacent ones substantially meet at a point, thereby to form a “wave” lens.

Abstract: From a quasi point source, light distribution means produce a selected one or ones of broadly distributed ambient light, non-shadowing task illumination, multi-beam display lighting, projective lineal lighting and projective surface washing illumination lineally or radially distributed. Collimation optics shape light from a quasi point source into a disc of selected axial thickness. Containment optics contain divergence of and direct light from the collimation optics to distribution optics. The distribution optics modulates and redirects the radiant energy into a shape or shapes useful in illuminating architectural space. The distribution optics may reflect or refract light to direct and shape it for a particular architectural illumination requirement. The efficient combination of the optics provides for a system of minimized thickness, permitting maximum flexibility in integration with or within shelves, soffits and other structural members.