Abstract: A method of producing an ophthalmic lens member is disclosed. The method comprises mounting an ophthalmic lens member blank 16 on a mandrel 1 for machining. The mandrel 1 has a front surface 6 comprising a planar surface region 10, a curved surface region 8 and a tool trench 12 located between the curved surface region 8 and the planar surface region 10. The method comprises mounting the mandrel 1 on a machine tool; and then severing a portion of the ophthalmic lens member blank 16 by passing a cutting tool 70 through the ophthalmic lens member blank 16 until a portion of the cutting tool 70 is received in the tool trench 12. A mandrel 1 suitable for use in the method is also disclosed.

Abstract: The present disclosure presents self-powered Bluetooth backscatter sensor systems and related methods. One such system comprises a wearable sensor device having communication circuitry, sensor circuitry, and at least one sweat-activated cell for powering the sensor circuitry; and a transmitter device having an interface for receiving power supplied from a power interface of an electronic communication device having a communication receiver. The transmitter device is configured to be powered by the electronic communication device via the power interface and transmit a continuous wave signal, such that the communication circuitry is configured to receive the continuous wave signal. The sensor circuitry is configured to acquire sensor data; and the communication circuitry is configured to modulate the sensor data onto the received continuous wave signal and transmit the modulated signal as a backscattered signal.

Abstract: Embodiments of the invention broadly contemplate systems, methods, apparatuses and program products that provide position tracking using a simple, low frequency oscillator that is attached to an object to be tracked, and one or more receiving stations that are placed around the area in which the object moves. Embodiments of the invention enable position tracking of the object using light weight equipment which minimally impacts the object's natural state.

Abstract: Embodiments of the invention broadly contemplate systems, methods, apparatuses and program products that provide position tracking using a simple, low frequency oscillator that is attached to an object to be tracked, and one or more receiving stations that are placed around the area in which the object moves. Embodiments of the invention enable position tracking of the object using light weight equipment which minimally impacts the object's natural state.

Abstract: A iodine liquid soap dispenser having a reservoir containing an iodine solution. The dispenser has a head communicating with the reservoir capable of delivering the solution to the exterior of the reservoir in the form of foam. The solution comprises water, iodine and iodide, and contains iodine in a range of concentration between 0.35% and 0.05% by weight of the solution. The solution may also contain one or more of the following: an anionic surfactant, Hydrogen Iodide, glycerine, and sodium hydroxide.

Abstract: Methods and apparatus for implementing stable self-starting and self-sustaining high-speed electrical nonlinear pulse (e.g., soliton, cnoidal wave, or quasi-soliton) oscillators. Chip-scale nonlinear pulse oscillator devices may be fabricated using III-V semiconductor materials (e.g., GaAs) to attain soliton pulse widths on the order of a few picoseconds or less (e.g., 1 to 2 picoseconds, corresponding to frequencies of approximately 300 GHz or greater). In one example, a nonlinear pulse oscillator is implemented as a closed loop structure that comprises a nonlinear transmission line and a distributed nonlinear amplifier arrangement configured to provide a self-adjusting gain as a function of an average voltage of the oscillator signal.

Abstract: Methods and apparatus for implementing stable self-starting and self-sustaining high-speed electrical nonlinear pulse (e.g., soliton, cnoidal wave, or quasi-soliton) oscillators. Chip-scale nonlinear pulse oscillator devices may be fabricated using III-V semiconductor materials (e.g., GaAs) to attain soliton pulse widths on the order of a few picoseconds or less (e.g., 1 to 2 picoseconds, corresponding to frequencies of approximately 300 GHz or greater). In one example, a nonlinear pulse oscillator is implemented as a closed loop structure that comprises a nonlinear transmission line and a distributed nonlinear amplifier arrangement configured to provide a self-adjusting gain as a function of an average voltage of the oscillator signal.

Abstract: Methods and apparatus for implementing stable self-starting and self-sustaining electrical nonlinear pulse (e.g., soliton, cnoidal wave, or quasi-soliton) oscillators. In one example, a nonlinear pulse oscillator is implemented as a closed loop structure that comprises a nonlinear transmission line, an improved high-pass filter, and a nonlinear amplifier configured to provide a self-adjusting gain as a function of an average voltage of the oscillator signal, to provide a pulse waveform having a desired target amplitude. In one implementation, the nonlinear amplifier and high pass filter functions are integrated in a two stage nonlinear amplifier/filter apparatus employing complimentary NMOS and PMOS amplification components and associated filtering and feedback circuitry configured to essentially implement an electric circuit analog of a saturable absorber via an adaptive bias control technique.

Abstract: Methods and apparatus for implementing stable self-starting and self-sustaining electrical nonlinear pulse (e.g., soliton, cnoidal wave, or quasi-soliton) oscillators. In one example, a nonlinear pulse oscillator is implemented as a closed loop structure that comprises a nonlinear transmission line, an improved high-pass filter, and a nonlinear amplifier configured to provide a self-adjusting gain as a function of an average voltage of the oscillator signal, to provide a pulse waveform having a desired target amplitude. In one implementation, the nonlinear amplifier and high pass filter functions are integrated in a two stage nonlinear amplifier/filter apparatus employing complimentary NMOS and PMOS amplification components and associated filtering and feedback circuitry configured to essentially implement an electric circuit analog of a saturable absorber via an adaptive bias control technique.

Abstract: An automatic and continuous chemical feed system for the introduction of a chemical solution into a liquid body. The system comprises a vessel for containing the chemical solution, a means for filtering the solution as it flows out of the vessel, a downcomer means having an inner diameter sufficiently large to spontaneously vent any gases which are formed in the solution back through the filter means and into the vessel, an adjustable standpipe means to regulate changes in the flow of the solution, a tubular connecting means to connect the downcomer means and the standpipe means and which initially determines the flow rate of the solution, and a tubular conveyance means attached to the standpipe to convey the chemical solution to a selected location in or above the liquid body. Once the vessel has been filled with the chemical solution, the flow of the solution is automatic and continuous.

Abstract: An automatic and continuous chemical feed system for the introduction of a chemical solution into a liquid body. The system comprises a vessel for containing the cheical solution, a means for filtering the solution as it flows out of the vessel, a downcomer means having an inner diameter sufficiently large to spontaneously vent any gases which are formed in the solution back through the filter means and into the vessel, an adjustable standpipe means to regulate changes in the flow of the solution, a tubular connecting means to connect the downcomer means and the standpipe means and which initially determines the flow rate of the solution, and a tubular conveyance means attached to the standpipe to convey the chemical solution to a selected location in or above the liquid body. Once the vessel has been filled with the chemical solution, the flow of the solution is automatic and continuous.