Abstract: A lamp apparatus for horticulture lighting is disclosed. The lamp apparatus is a high intensity electrodeless plasma lamp with an optimized spectrum for horticulture applications. The spectrum is provided from single light source and consists of peaks in the blue range of the spectrum, 400 nm to 470 nm, needed for early growth cycle of the plant as well as peaks in the red range of the spectrum, 600 nm to 700 nm, desirable for flowering cycle while providing lower amount of light in the green spectral region which is typically reflected by the plants. The ratio of the red spectrum to blue spectrum provided by the lamp can be varied by adjusting the RF power to the lamp.

Abstract: The present invention is directed to devices and methods for generating light with plasma lamps. More particularly, the present invention provides plasma lamps driven by a radio-frequency source without the use of electrodes inside the bulb and related methods. In a specific embodiment, a coaxial type coupling module is used to drive an electrodeless bulb. Merely by way of example, such plasma lamps can be applied to applications such as stadiums, security, parking lots, military and defense, street lighting, large and small buildings, vehicle headlamps, aircraft landing, bridges, warehouses, UV water treatment, agriculture, architectural lighting, stage lighting, medical illumination, microscopes, projectors and displays, any combination of these, and the like.

Abstract: A lamp apparatus for horticulture lighting is disclosed. The lamp apparatus is a high intensity electrodeless plasma lamp with an optimized spectrum for horticulture applications. The spectrum is provided from single light source and consists of peaks in the blue range of the spectrum, 400 nm to 470 nm, needed for early growth cycle of the plant as well as peaks in the red range of the spectrum, 600 nm to 700 nm, desirable for flowering cycle while providing lower amount of light in the green spectral region which is typically reflected by the plants. The ratio of the red spectrum to blue spectrum provided by the lamp can be varied by adjusting the RF power to the lamp.

Abstract: An electrode-less plasma lamps, comprising generally of a bulb containing a gas-fill that is excited to produce light using radio-frequency (RF) energy. In specific embodiments, the use of grounded coupling-elements with integrated bulb assemblies simplifies manufacturability, improves resonant frequency control, and enables the use of solid, partially filled, and hollow lamp bodies. In an example, the lamp is configured with an rf feed that is substantially normal to a direction of the bulb and associated support member.

Abstract: A method for operating a plasma lamp apparatus. The method includes providing a resonator structure configured with a bulb comprising a fill mixture. The bulb is coupled to an output coupling element. The method applying an RF power source to a resonator structure configured with an input coupling element and coupling the RF power to the output coupling element configured with the input coupling element to cause the fill mixture to discharge electromagnetic radiation. The method includes adjusting a spatial distance or relative configuration between the input coupling element and the output coupling element during output of the electromagnetic radiation and causing a change in an impedance value of the resonator structure to initiate an adjustment of a power transfer from the RF power source to an output of the electromagnetic radiation.

Abstract: This disclosure is directed to devices and methods for generating light with electrode-less plasma lamps. More particularly, the present invention provides plasma lamps driven by a radio-frequency source without the use of electrodes inside the bulb, and a pulse-width modulation device that provides RF power regulation, and related methods. The bulb comprises gaseous material with metal halides and/or light emitters that, when powered, substantially stays in an arc shape state. The switching pulse-width modulation device is operable at specific modulation frequencies, duty cycles, and durations to stabilize or control the arc state/mode, which enables consistent and high efficiencies.

Abstract: A method for operating a plasma lamp apparatus. The method includes providing a resonator structure configured with a bulb comprising a fill mixture. The bulb is coupled to an output coupling element. The method applying an RF power source to a resonator structure configured with an input coupling element and coupling the RF power to the output coupling element configured with the input coupling element to cause the fill mixture to discharge electromagnetic radiation. The method includes adjusting a spatial distance or relative configuration between the input coupling element and the output coupling element during output of the electromagnetic radiation and causing a change in an impedance value of the resonator structure to initiate an adjustment of a power transfer from the RF power source to an output of the electromagnetic radiation.

Abstract: An electrode-less plasma lamps, comprising generally of a bulb containing a gas-fill that is excited to produce light using radio-frequency (RF) energy. In specific embodiments, the use of grounded coupling-elements with integrated bulb assemblies simplifies manufacturability, improves resonant frequency control, and enables the use of solid, partially filled, and hollow lamp bodies.

Abstract: A plasma lamp apparatus. The apparatus can have a bulb coupled to at least the first end of a support member that is provided within a housing having an interior and exterior region. The housing can also have a first coupling member disposed within the housing, and a gap can be provided between the first coupling member and the support member. Additionally an rf source can be coupled to the support member. A fill material, which can include at least a first volume of a rare gas, a first amount of a first metal halide, a second amount of a second metal halide, and a third amount of mercury, can be spatially disposed within the bulb.

Abstract: An electrode-less plasma lamp, comprising generally of a bulb containing a gas-fill and light emitter(s) that is excited to produce light using radio-frequency (RF) energy. The present lamp includes compact air resonators/waveguides that use grounded coupling-elements with integrated bulb assemblies to reduce the size of the resonator and improve the performance of the lamp as well as reduce cost and simplify manufacturability.