Abstract:
A light guide includes a light input surface, a first major surface orthogonal to the light input surface and a second major surface opposing the first major surface and forming a converging wedge with the first major surface. The second surface includes a plurality of doublet light extraction features closely-packed or separated by a land feature. Each doublet feature includes a first prism feature having a first shape and a second prism feature having a second shape and the second shape is different than the first shape.
Abstract:
Described is a LED Luminaire combined with a theatrical fan for generating combined blast of air and beam of light directed in a common direction.
Abstract:
Described is a LED Luminaire combined with a theatrical fan for generating combined blast of air and beam of light directed in a common direction.
Abstract:
The invention relates to a lighting arrangement, which is implemented by means of light emitting diodes or LEDs, characterized in that the lighting arrangement comprises a lighthead support (1 ), including one mounting plane (10) which consists of a plurality of mounting brackets (2; 2 1 , 2 2 , 2 3 ,... ) for light elements which are set in a single plane, said mounting brackets being rod-like members which are aerodynamic at least in a direction (B-B) transverse, most preferably perpendicular to the mounting plane (10), and across which the air is able to flow, said mounting brackets being fitted with a plurality of light elements (3) containing at least one light emitting diode (31 ), such that said light elements (3) are for the most part thereof located inside the mounting brackets (2), whereby at least some of said light elements (3) comprise a light source or LED (31 ), whereby said mounting brackets (2; 2 1 , 2 2 , 2 3 ,... ) are disposed in the proximity of a ceiling (K) of an operating theatre or the like facility, essentially above an operating table (LP) so as to be located immediately below a supply air frame (TF) of the facility to be illuminated and in such a way that a supply air (C) flowing through the supply air frame (TF) is adapted to retain its constant angle of incidence (d1, d2) with the mounting plane (10) regardless of where the object of illumination is located in the to-be-illuminated facility with respect to the mounting plane (10) or regardless of the direction of a light beam generated by each light source or LED.
Abstract:
The invention relates to a light-output device (1; 10; 30) controllable to provide different light-output functions. The light-output device comprises a light-source arrangement (12; 31) configured to emit light; and a light-guiding system (10; 32) arranged to receive the light and configured to guide the light to at least one light-output surface of the light-guiding system. The light-guiding system (10; 32) comprises at least a first light-guide (11b; 37) and a second light-guide (11a; 40, 41); and the light-guiding system (10; 32) is movable relative to the light-source arrangement (12; 31) between at least a first position where light output by the light-source arrangement is guided by the first light-guide (11b; 37) to provide a first light-output function, and a second position where light output by the light- source arrangement is guided by the second light-guide (11a; 40, 41) to provide a second light-output function, different from the first light-output function. The present invention is based on the realization that different light-output functions conveniently and intuitively can be achieved by moving a light-guiding system comprising at least two light-guides relative to a stationary light-source arrangement. Hereby, different light-output functions can be achieved with a single stationary light-source arrangement.
Abstract:
The invention relates to a light-output device (1; 10; 30) controllable to provide different light-output functions. The light-output device comprises a light-source arrangement (12; 31) configured to emit light; and a light-guiding system (10; 32) arranged to receive the light and configured to guide the light to at least one light-output surface of the light-guiding system. The light-guiding system (10; 32) comprises at least a first light-guide (11b; 37) and a second light-guide (11a; 40, 41); and the light-guiding system (10; 32) is movable relative to the light-source arrangement (12; 31) between at least a first position where light output by the light-source arrangement is guided by the first light-guide (11b; 37) to provide a first light-output function, and a second position where light output by the light- source arrangement is guided by the second light-guide (11a; 40, 41) to provide a second light-output function, different from the first light-output function. The present invention is based on the realization that different light-output functions conveniently and intuitively can be achieved by moving a light-guiding system comprising at least two light-guides relative to a stationary light-source arrangement. Hereby, different light-output functions can be achieved with a single stationary light-source arrangement.
Abstract:
A light fixture (100, 600) includes first and second flexible materials (710 and 720) coupled to first and second scrolling mechanisms (750 and 760) that move the material in first and second directions to position a selected portion of the first and second flexible materials in first and second parts (730 and 740) of a light beam (112) from the fixture. A device coupled to the first and second mechanisms may move the first and second mechanisms in third and fourth directions so that third and fourth parts (942 and 944) of the light beam do not pass through the first and second flexible materials. The third and fourth directions are different than the first and second directions. Different areas of the first and second flexible materials may produce different colors. The light fixture may also include a third scrolling mechanism (110) coupled to a flexible diffusion material, to diffuse at least a part of the light beam by a predetermined amount.