Abstract: A method and circuit to control the intensity of lights, illumination fixtures, and displays using pulses of a fixed duration and a fixed frequency (FD/FF) is provided. In particular, the method may be used to control one more light sources. By varying the number of pulses in a control burst, the total current flowing through the light source may be precisely controlled providing greater accuracy than other methods, such as, for example, PWM or variable pulse frequency. The FD/FF technique may be used in conjunction with any number of light sources, and finds particular application in LED displays and for any type of LED illumination fixture.
Abstract: A metallic reflector device having one or an array of individual reflector elements for positioning over a corresponding one or array of light sources, preferably comprising one or more light emitting diodes (LEDs). The metallic reflector device includes a planar base and a plurality of the reflector elements. The planar base has one or a plurality of apertures, each aperture having an edge that defines a proximal rim of the reflector element. Each reflector element includes an annular sidewall having an inner surface that extends from the proximal annular rim to a distal annular rim. The proximal annular rim defines a first opening through which direct and reflected light from a light source is emitted. The distal annular rim defines a second opening through which the light source is disposed. The inner surface of the annular sidewall is formed from the material of the planar sheet by mechanically deforming the planar sheet, such as by stamping or drawing.
Abstract: An externally adjustable directional canopy luminaire is disclosed that may be easily and quickly adjusted from the outside of its housing to direct light toward a particular target area. The luminaire includes a lamp shroud assembly including a door frame, a shroud and a lamp socket which is connectable to an electrical power source to power a replaceable lamp, an external adjustment member, and an internal mechanism movably connected to the external adjustment member through the shroud and indirectly connected to a portion of the lamp socket, wherein adjustment of the external adjustment member can alter the angle of direction of the lamp socket and thus the direction of light emitted from the replaceable lamp through the opening of the shroud.
Type:
Grant
Filed:
November 15, 2006
Date of Patent:
April 14, 2009
Assignee:
LSI Industries, Inc.
Inventors:
Robert E. Kaeser, James E. Lawrence, Michael D. Wyatt
Abstract: A directional canopy luminaire that can be easily and quickly adjusted to direct light from a canopy toward a particular target area without scattering light to unintended areas. The luminaire includes an outer housing having an aperture, a directional support rotatably mounted within the outer housing, an inner support pivotally affixed to the directional support, and a light supporting means. The light supporting means is typically configured to support a replaceable lamp that is electrically connectable to an electric power source. Light can be aimed in any desired direction through the aperture of the luminaire by pivoting into a position the directional support and the inner support.
Abstract: A lighted architectural mesh includes a plurality of interconnected wires forming a plurality of transverse openings. At least one light element is slidably received within at least one of said transverse openings. The at least one light element includes light nodes emitting light through the interstices on the front and/or rear side of the architectural mesh. The at least one light element further comprises a plurality of connecting elements, wherein the light emitter nodes of the at least one light element are releasably interconnected in series by the connecting elements.
Type:
Application
Filed:
July 15, 2008
Publication date:
January 22, 2009
Applicants:
Cambridge International Inc., LSI Industries, Inc.
Inventors:
Thomas Costello, Matthew O'Connell, Bassam Dib Jalbout
Abstract: A device and method for retrofitting a light fixture from use with a lamp socket that employs an incandescent or metal halide lamp, to use with another lamp assembly. The lamp fixture has a collar with a base and an annular outer wall extending out from the base. The LED lamp device includes a neck base having an annular outer wall having a shaped outside surface that is placed into direct surface contact with the inner surface of the annular outer wall of the collar, to establish an effective heat-transferring interface. The shaped outer surface of the neck base provides proper fitting of the LED lamp device into the lighting fixture, and provides a heat-transferring interface over substantially all of the outer surface of the neck base, to dissipate heat away from the LED module. Aluminum material provides high thermal conductivity, light weight, availability, and low cost.
Abstract: A self-standing reflector, and method of making same, comprising a main reflector formed from at least one sheet of reflective material, and at least one reflective insert joined to the main reflector. The main reflector is typically formed by folding a plurality of flat panels along fold lines pre-formed in the sheet into abutting relationship to define a predetermined three-dimensional reflector shape. The reflective insert can have a plurality of facets formed into its reflective surface and is joined to the interior surface of the folded main reflector, and has a reflecting surface disposed inboard from the interior reflective surface of the main reflector. The main reflector and the reflective inserts have a reflectance of at least 95% (Miro 4). The fold-up reflector with its reflective inserts directs reflected light to a predetermined area to provide improved area lighting with less light scatter and improved efficiency.
Abstract: A menu panel for supporting elongated menu strips of varying heights is disclosed having adjustable guide rails supported by a frame. The frame includes vertical side frame members incorporating guide rail locating elements disposed along the length of the vertical side frame members to position the guide rails. The guide rails are selectively positionable along the length of the vertical side frame members to provide adjustable spacing between adjacent pairs of guide rails. The menu strips include descriptive indicia such as product names and pricing information and are disposed between and supported by adjacent pairs of the guide rails.
Type:
Grant
Filed:
December 20, 2004
Date of Patent:
August 19, 2008
Assignee:
LSI Industries, Inc.
Inventors:
James E. Bradley, Donald E. Lunnemann, Robert Uzzolino
Abstract: A foldable element support made from planar sheet of material that can be formed by folding into a support for positioning and securing a refractor lens to a luminaire housing. The foldable element support is a planar sheet that has a central base having a central opening, a plurality of foldable securing arms formed into the central base for attaching the support to a luminaire housing, and a plurality of peripherally-arranged support flanges for supporting and positioning the upper rim of the refractor lens in proximity to the luminaire housing. The folded support can be manipulated into the folded configuration by hand, with hand tools, or by a machine.