Abstract:
A retrofit-style lamp is disclosed. The retrofit-style lamp includes a plurality of light sources, and a one-dimensional linear batwing lens. The one-dimensional linear batwing lens beam shapes light emitted by at least two light sources of the plurality of light sources. The retrofit-style lamp also includes a housing including the plurality of light sources, and attached to the one-dimensional linear batwing lens. The combination of housing and lens is then itself fitted with endcaps, including electrical connectors, for placement within a fixture, such as within an existing conventional fluorescent tube fixture located within a storage structure, for example a refrigeration case. Alternatively, the plurality of light sources, the one-dimensional linear batwing lens, and the housing may be formed, along with a power supply, as a standalone retrofit fixture for use in enclosed storage structures, such as refrigeration cases, where the retrofit fixture replaces a conventional fluorescent fixture.
Abstract:
Illumination techniques and related devices are disclosed. In some cases, a lighting device configured as described herein may include a front luminaire configured to emit white light and a back luminaire configured to emit colored light. The lighting device can be operatively coupled with controller circuitry programmed or otherwise configured, for example, with one or more algorithms which control the light output of the front and/or back luminaire so as to provide tunability. In some cases, device output may be controlled so as to: (1) simulate lighting conditions/patterns corresponding to the daytime/nighttime on Earth; (2) support/alter physiological processes; and/or (3) provide a specific ambient lighting for a given space. In some instances, a system of multiple such lighting devices can be provided, and in some cases, communication between constituent lighting devices may be provided. In some instances, the lighting device may be mountable as a sconce or other lighting fixture.
Abstract:
A dual solder layer for fluidic self assembly, an electrical component substrate, and method employing same is described. The dual solder layer comprises a layer of a self-assembly solder disposed on a layer of a base solder which is disposed on the solder pad of an electrical component substrate. The self-assembly solder has a liquidus temperature less than a first temperature and the base solder has a solidus temperature greater than the first temperature. The self-assembly solder liquefies at the first temperature during a fluidic self assembly method to cause electrical components to adhere to the substrate. After attachment, the substrate is removed from the bath and heated so that the base solder and self-assembly solder combine to form a composite alloy which forms the final electrical solder connection between the component and the solder pad on the substrate.
Abstract:
Systems and methods for pulse-based binary communication are provided. An example system may include a transmitting device and a receiving device. The transmitting device may be configured to generate a supply voltage for use in operating the receiving device and to cause at least one pulse to occur in the supply voltage, the at least one pulse being based on a binary value. The at least one pulse may comprise, for example, a temporary change in the supply voltage. The receiving device may be configured to receive the supply voltage from the transmitting device, to detect the at least one pulse in the supply voltage and to determine the binary value based on the at least one pulse. The receiving device may then perform an action based on the binary value.
Abstract:
An organic luminous means and an illumination device comprising such a luminous means are specified. An optical display apparatus, emergency lighting, motor vehicle interior lighting, an item of furniture, a construction material, a glazing and a display comprising such a luminous means and, respectively, comprising an illumination device having such a luminous means are furthermore specified.
Abstract:
Lighting control techniques and corresponding drivers and ballasts are disclosed. In some embodiments, the driver or ballast receives multiple dimming inputs and has multiple dimming interfaces that produce initial dimming signals or levels. The initial dimming signals are manipulated by a controller to produce a final output dimming signal or level that is based on the dimming signals received and dims the attached light sources accordingly. The manipulations performed by the controller may include various operations, such as comparisons and calculating the product of the initial dimming signals. In some embodiments, the techniques can be applied to light-emitting diode (LED) drivers or ballasts for fluorescent and other discharge light sources and can be used in smart grid and peak power shaping applications.
Abstract:
A mounting member (50, 50null, 50null, 50nullnull) for an arc tube/shroud combination comprises an annulus (52). The annulus (52) has at least one mounting tab (54) depending from an outer edge thereof and two spaced apart arc tube-pinch seal-engaging ribs (56, 58) spanning the diameter of the annulus for frictionally engaging the pinch seals. Holding tabs (62) depending from the annulus mount the annulus to a shroud. In a preferred embodiment the ribs (56, 58) have upstanding projections (60) that engage the pinch seals and provide the friction fit necessary for holding the pinch seals.
Abstract:
A red-emitting phosphor blend is provided which comprises a mixture of a first red-emitting phosphor having a general formula of (Y1-x-yGdxEuy)2O3 wherein 0nullxnull0.9 and 0.02nullynull0.4 and a second red-emitting phosphor having a general formula of (Y1-a-bGdaEUb) BO3 wherein 0nullanull1 and 0.02nullbnull0.1, the second red-emitting phosphor comprising from 10 to 40% by weight of the blend.
Abstract translation:提供了一种红色发光荧光体共混物,其包含具有通式(Y1-x-yGdxEuy)2O3的第一红色发光荧光体的混合物,其中0 <= x <= 0.9和0.02 <= y <= 0.4, 具有通式(Y1-a-bGdaEUb)BO3的第二红色发光荧光体,其中0 <= a <= 1且0.02 <= b <= 0.1,所述第二红色发光荧光体包含10至40重量% 混合。
Abstract:
Method for introducing a limited amount of mercury into a fluorescent lamp during manufacture thereof includes the steps of forming the lamp with an exhaust tubulation therein open at an end thereof and provided with a ball retention structure, exhausting the interior of the lamp through the tubulation open end, placing a rigid ball of inert material in the tubulation between the ball retention structure and the tubulation open end, the ball having a coating of a selected one of silver, gold, and indium, of a selected mass over a selected surface area of the ball, and mercury on the coated area, and sealing the open end of the tubulation, whereby the amount of mercury retained on the ball and thereby introduced into the lamp is limited by the selected mass of the coating on the ball.
Abstract:
An apparatus and method to implement an electronic ballast for a high intensity discharge lamp having AC lamp current centered at approximately 300 kHz minimizes the ballast cost and utilizes modulation of the lamp current to avoid acoustic resonance. In order to minimize the number of additional components providing the modulation function, the ripple voltage produced by PFC circuit is fed through a capacitor to a FREQUENCY SET input of an inverter controller. The value of the capacitor can be chosen to produce the desired modulation range.