Osram Sylvania Inc.

Rogers Corporation

Lori R Brock

Michael Quilici

Seung Cheol Ryu

Kristi Dhimiter Pance

Shailesh Pandey

Karl Edward Sprentall

Gianni Taraschi

Yajie Chen

Warren Paul Moskowitz

Arlene Hecker

Jeffrey T Neil

Roshin Rose George

Harold Rothwell, Jr

Joanne M Browne

Sara G Canzano

Daniel Pennock

Lance Young

Joseph A Baglio

Nikolay Natchev

Harold L Rothwell

A dual band antenna includes a substrate having a magnetodielectric material, and an electrically conductive patch disposed on the substrate, wherein the patch has at least one in-plane cutout having an H-shape or an I-shape, as observed in a plan view of the patch.

Dual band antenna

An electromagnetic, EM, apparatus, includes: a first portion having an EM signal feed; and a second portion disposed on the first portion, the second portion having a shaped metallized form having at least one shaped metallized cavity, the second portion further having a dielectric medium disposed within each of the at least one shaped metallized cavity such that respective ones of the dielectric medium has a 3D shape that conforms to a shape of a corresponding one of the at least one shaped metallized cavity.

Electromagnetic waveguide

Techniques are disclosed to operate a luminaire so as to reduce glare experience by an occupant within an area illuminated by a luminaire. The luminaire includes individually operated light sources. An image capture device is deployed for capturing an image of an area. Operatively coupled to the luminaire and the image capture device is a computing system. The computing is configured to reduce glare by adjusting a light intensity of a light source of the luminaire. These adjustments are based on, for example, a position of an occupant within the area and a direction in which the occupant is facing relative to the luminaire, and/or a position of an indirect glare source.

Systems and methods for glare-free adaptive lighting

A luminaire having an electronically adjustable light beam distribution is disclosed. In accordance with some embodiments, the disclosed luminaire includes a housing, for example, of hemi-cylindrical, oblate hemi-cylindrical, oblong elliptical, or polyhedral shape. The disclosed luminaire also includes a plurality of solid-state light sources arranged over its housing, in accordance with some embodiments. The one or more solid-state emitters of a given solid-state light source may be addressable individually and/or in one or more groupings, in some embodiments. As such, the solid-state light sources can be electronically controlled individually and/or in conjunction with one another, providing for highly adjustable light emissions from the host luminaire, in accordance with some embodiments. One or more heat sinks may be mounted on the housing to assist with heat dissipation for the solid-state light sources. The luminaire can be configured, for example, to be mounted or as a free-standing lighting device, as desired.

Solid-state luminaire with electronically adjustable light beam distribution

Solid-state lamps having an electronically adjustable light beam distribution are disclosed. In accordance with some embodiments, a lamp configured as described herein includes a plurality of solid-state emitters (addressable individually and/or in groupings) mounted over a non-planar interior surface of the lamp. The interior mounting surface can be concave or convex, as desired, and may be of hemispherical or hyper-hemispherical geometry, among others, in accordance with some example embodiments. In some embodiments, the heat sink of the lamp may be configured to provide the interior mounting surface, whereas in some other embodiments, a separate mounting interface, such as a parabolic aluminized reflector (PAR), a bulged reflector (BR), or a multi-faceted reflector (MR), may be included to such end. Also, the lamp may include one or more focusing optics for modifying its output. In some cases, a lamp provided as described herein may be configured for retrofitting existing lighting structures.

Solid-state lamps with electronically adjustable light beam distribution

Lighting techniques utilizing solid-state lamps with electronically adjustable light beam distribution

A single-ended ceramic discharge lamp is described which has an integral optical surface such as a parabolic or elliptical reflector. The single-ended configuration eliminates the need for the mounting structures found in double-ended lamps that can interfere with the light emitted from the lamp, particularly in focused beam applications.

Single-ended ceramic discharge lamp

An arc discharge lamp () has a lamp envelope () and an arc discharge vessel () mounted within the envelope (). An arc centering structure () is positioned within the arc discharge vessel for substantially centering the arc. The centering structure () is preferably fixedly mounted within the arc discharge vessel () and preferably comprises a metal annulus () that incandesces during lamp operation and adds to the light output of the lamp. In a preferred embodiment, the lamp is suitable for vertical or horizontal operation.

Arc discharge vessel having arc centering structure and lamp containing same

A metal halide fill for a discharge lamp is provided that is comprised of mercury and a mixture of metal halide salts which includes magnesium iodide as a full or partial replacement for calcium iodide. The replacement of at least some of the calcium iodide improves the behavior of the molten salt condensate in the arc tube. In particular, the mixture of metal halide salts contains about 1 to about 50 mole percent sodium iodide, about 15 to about 50 mole percent of a rare earth iodide, about 10 to about 30 mole percent magnesium iodide, about 10 to about 25 mole percent of indium iodide, and about 0 to about 25 mole percent calcium iodide, wherein the sum of the amounts of calcium iodide and magnesium iodide in the mixture is from about 20 to about 45 mole percent.

Metal halide lamp chemistries with magnesium and indium

A ceramic arc tube for a metal halide discharge lamp is described wherein the lower end well of the arc tube has an internal barrier ridge which substantially prevents migration of the metal halide condensate into the central region of the discharge chamber during vertical operation. The use of the ridge reduces fluctuation in the color temperature of vertically operated lamps and improves efficacy.

Ceramic arc tube with internal ridge

A thallium-free metal halide fill for ceramic metal halide lamps is provided wherein the fill comprises mercury, sodium iodide, an alkaline earth iodide selected from calcium iodide, strontium iodide, barium iodide, or combinations thereof, and a rare-earth iodide selected from cerium iodide, dysprosium iodide, holmium iodide, thulium iodide, or combinations thereof. In a preferred embodiment, the fill allows dimming of discharge lamps containing same to about 60% of rated power without substantially affecting the color of the emitted light.

Thallium-free metal halide fill for discharge lamps and discharge lamp containing same

Arc tube ( ) has a bulbous body ( ) with a hollow center portion ( ) and opposite ends ( ). Each of these ends has a cylindrical terminal-receiving section ( ) extending therefrom. The hollow center portion ( ) has an internal length A and an internal diameter B that provides an aspect ratio of less than 5 and an outer surface area to inner surface area ratio, measured in square units, of less than 1.5. Electrodes ( ) and ( ) are hermetically sealed in the terminal-receiving sections ( ). The lamp uses less than 7 mgs of mercury. The low pressure operation allows the use of the arc tube in lamps without a shroud and the low mercury allow the lamp to pass TCLP requirement and be conventionally landfilled.

Growing community of inventors

Gloucester, MA, United States of America

Lori R Brock