Abstract: A pulsed laser diode driver includes a refresh circuit configured to generate a refresh current using a received input voltage. A current amplitude of the refresh current is controlled by the refresh circuit based on a voltage level of a source voltage received by the refresh circuit. A source capacitor of the pulsed laser diode driver is configured to receive the refresh current and to develop the source voltage therefrom. An inductor of the pulsed laser diode driver has a first terminal that is directly electrically connected to the source capacitor. One or more switches of the pulsed laser diode driver are configured to control a current flow through the inductor to produce a high-current pulse through a laser diode that corresponds to a peak current of a resonant waveform developed at an anode of the laser diode.

Abstract: A low numerical aperture fiber output diode laser module, which having several independent diode lasers, and collimated and converged the light beam, for the coupling the light to the core optical fiber with a core diameter of 105 um and a numerical aperture of 0.12. Compared with general products with a numerical aperture of 0.22, the light output angle is reduced to 55%, and use a general blue laser diode for verification. Use an optical software for facilitating the design and optimization of the parameters of the optical lens module.

Abstract: The present invention provides a laser module and an assembly method therefor. The laser module is mainly consisted of a lens module configured to be installed in an inner cavity of the height adjustment barrel through an end of the height adjustment barrel and a heat sink threadingly connected with another end of the height adjustment barrel. The laser module is configured in such a manner that a laser diode received in an inner cavity of the heat sink and a lens accommodated within the lens module are aligned along a same optical axis, and the height adjustment barrel is configured to adjust a focal length between the laser diode and the lens.

Abstract: A decontamination rinse wastewater management system for use with a shower facility has a containment assembly with a first compartment and a second compartment integrally connected together, and a diverter valve having an inlet, a first outlet and a second outlet. The first outlet is directed to the first compartment. The inlet of the diverter valve is adapted to receive wastewater from the shower facility. The second outlet of the diverter valve is adapted to be connected to a sewer. The diverter valve is actuatable so as to move to a first position wherein wastewater from the shower facility is directed to the first compartment and to move to a second position wherein wastewater from the shower facility is directed to the sewer. The diverter valve is positioned in the second compartment of the containment assembly.

Abstract: A light emitting device includes: a plurality of laser elements including a first laser element and a second laser element; a case enclosing the laser elements and including a light-transmissive region; and a plurality of main lenses including a first main lens configured to collimate or converge light emitted from the first laser element and a second main lens configured to collimate or converge light emitted from the second laser element. At least a first portion of the light-transmissive region is disposed on a first imaginary line passing through a light emitting end surface of the first laser element and the first main lens, and at least a second portion of the light-transmissive region is disposed on a second imaginary line passing through a light emitting end surface of the second laser element and the second main lens.

Abstract: An improved toilet seat includes an upper body includes an upper sitting surface; a lower body coupled with the upper body, where the lower body includes a lower contact surface; and at least one slideable clamp positioned between the upper sitting surface and the lower contact surface, where the at least one slideable clamp includes a clamp arm and clamp paddle coupled to the clamp arm, and where the clamp arm is configured to move between a first position and a second position.

Abstract: A semiconductor laser in which a PD unit monitoring an optical output is integrated is provided.

Abstract: An improved and redundant system to prevent leakage from a toilet tank and into a toilet bowl. The device comprises a housing configured to surround a float and including sidewalls and bottom portion with a bore hole. A secondary flop is configured for receipt into and for sealing the bore hole when leakage occurs.

Abstract: A protective cover for preventing water and debris from entering a pool ladder anchor socket embedded in a pool deck surface, the socket having a hollow sleeve portion, an aperture, a flange surrounding the aperture, and a tightening projection projecting upwardly from the flange, the protective cover comprising a cap and a plug formed of compressible elastic material, the plug is inserted through the aperture to create a watertight seal which protects the sleeve portion, while the cap has a cap recess which is aligned with and encloses the tightening projection, allowing the cap to achieve flush contact with the flange.

Abstract: A water conservation faucet seamlessly integrating a tactile feedback mechanism into existing faucets to spur user controlled pre-set water flow rate, energy conservation, and cost savings. During movement of the handle, the user receives tactile feedback through the handle indicating the position of the handle as it moves from one pre-set position to the next. In addition to tactile feedback, the handle provides visual feedback to the user as the handle remains in the fixed position until the user chooses to move handle to another position.

Abstract: A light emission device of one embodiment reduces zero-order light included in output of an S-iPM laser. The light emission device includes a light emission unit and a phase modulation layer. The phase modulation layer has a base layer and modified refractive index regions each including modified refractive index elements. In each unit constituent region centered on a lattice point of an imaginary square lattice set on the phase modulation layer, the distance from the corresponding lattice point to each of the centers of gravity of the modified refractive index elements is greater than 0.30 times and is not greater than 0.50 times of the lattice spacing. In addition, the distance from the corresponding lattice point to the center of gravity of the modified refractive index elements as a whole is greater than 0 and is not greater than 0.30 times of the lattice spacing.

Abstract: The present disclosure provides a laser diode package module. The laser diode package module includes a substrate including a first surface; a cover disposed on the first surface of the substrate; an accommodation space formed between the substrate and the cover; a laser diode die disposed in the accommodation space; and a reflective surface disposed in the accommodation space for outputting light of the laser diode die reflected by the reflective surface and transmitted through a light-transmitting area. The light-transmitting area is at least partially disposed on a surface of the cover opposite the substrate.

Abstract: A multi-laser arrangement, in particular an RGB laser module, having a housing with a housing cap having at least one opening formed therein and a transparent element associated therewith for the passing of electromagnetic radiation. The housing cap coupled to a base plate. A first laser emitting in the red spectral range, a second laser emitting in the green spectral range, and a third laser emitting in the blue spectral range are arranged in the housing. An electrical connection line is routed through the housing to each respective laser. During operation of a laser, a majority of its emitted light passes through the transparent element. Each laser is arranged on a pedestal; spaced apart from the lower surface of the base plate; and is aligned with one another. The main direction of laser emission is substantially parallel to the base plate of the housing.

Abstract: Optical devices having a structured active region configured for selected wavelengths of light emissions are disclosed.

Abstract: A light emitting device includes a package, a cap fixed to the package, and at least one laser element. The cap includes a light-transmissive member having a lower surface facing the package and an upper surface opposite to the lower surface, and a light blocking film arranged on the lower surface of the light-transmissive member and having a shape which has at least one opening. The at least one laser element is disposed in a space bounded by the cap and the package at a position such that the at least one opening is irradiated by laser light emitted from the at least one laser element, at least a part of each of the at least one laser element being disposed in the at least one opening in the light blocking film in a top view.

Abstract: Methods for depositing molybdenum films on a substrate are described. The substrate is exposed to a molybdenum halide precursor and an aluminum precursor to form the molybdenum film (e.g., elemental molybdenum) at a low temperature. The exposures can be sequential or simultaneous.

Abstract: A semiconductor optical module includes a semiconductor laser element region having an active layer, a first cladding layer which is formed such that the active layer is embedded therein, a second cladding layer which is formed underneath the active layer and the first cladding layer, and a heater unit which produces a temperature change in a waveguide; an optical waveguide element region including a spot-size converter which converts a spot size of incident laser light, and an optical waveguide core layer which is formed such that the spot-size converter is embedded therein, the first cladding layer contains InP, the second cladding layer is made of a material lower in refractive index and higher in thermal conductivity than the first cladding layer, and a third cladding layer which is made of a material lower in refractive index and lower in thermal conductivity than the second cladding layer is formed underneath the spot-size converter and the heater unit.

Abstract: A floor drain and method of manufacture is described. The drain assembly includes a transverse bar in the throat of the drain base. The bar supports a substantially vertical, elongated connecting member or fastener to the strainer flush with the floor, and acts to transfer any vertical downward forces to the side wall of the drain base. The drain assembly may be milled from a single piece of metal and include an integral no hub for greater structural integrity.

Abstract: One or more embodiments are disclosed for an infant bathing apparatus that fits in any sized bathtub for bathing a newborn, an infant, or a toddler and allows a parent to sit in the bathtub during bath time. The infant bathing apparatus comprises a frame, a sling, one or more straps, and a telescoping stand. The frame is rigid and buoyant to stay afloat on top of the water. The frame includes an opening for the sling to removably connect within the frame. The sling is configured to support the baby within the frame. The one or more straps connect to the frame and may have suction cups that secure the frame to the sides of the bathtub. The telescoping connects to the frame and rests on a bathtub floor. A parent may sit within the bathtub either with the stand attached to the frame or remove the stand from the frame.

Abstract: The innovation relates to a pool covering system that is usable as a flooring surface. The pool covering system includes brackets and support beams spanning the pool opening. The beams provide structural support to cross members and flooring placed on top of the beams. The pool covering system does not require significant drainage of the pool and does not damage the pool structure during installation and use.