Abstract: A device for laser projection comprises a first laser diode configured to emit a first linearly polarized laser beam extending along a first polarization axis and a second laser diode configured to emit a second linearly polarized laser beam extending along a second polarization axis that is perpendicular to the first polarization axis. A polarization combiner is configured to combine the first and second linearly polarizing laser beams into a combined laser beam, wherein the combined laser beam comprises one of: (1) circular polarization; and (2) elliptical polarization. A measuring device is configured to measure an intensity of the combined laser beam. A control unit is configured to receive the measured intensity of the combined laser beam and is further configured to adjust an intensity of at least one of: (1) the first laser diode; and (2) the second laser diode.

Abstract: The present invention provides a flush water tank device (4) that supplies flush water to an upper and lower spout port of a flush toilet (2) including; a flush water tank (10); a discharge valve (12); a first on-off valve (19) that performs switching between ejection and stopping of the flush water from the upper spout port; a first on-off valve driving mechanism (16) that is moved from a stopped position to an ejection position based on an user operation; a biasing mechanism (17) that causes the first on-off valve driving mechanism to move to the stopped position; a holding mechanism (20) that holds, at the ejection position, the first on-off valve driving mechanism at the ejection position against the bias force; and a releasing mechanism (21) that releases the holding of the first on-off valve driving mechanism, using the flush water flowing out from the first on-off valve.

Abstract: The present disclosure provides a pushing force converting device including a cylinder barrel. The cylinder barrel includes an air cavity; a mounting cavity; and an air cavity vent in communication with the air cavity. The pushing force converting device also includes a piston configured to slide back and forth in the cylinder barrel and slidably disposed in the mounting cavity; a transmission bar connected with the piston and configured to drive the piston to move toward the air cavity; a restoring member disposed in the cylinder barrel and configured to drive the piston or the transmission bar to be restored to a respective initial position; and a sealing ring disposed on the piston and configured to seal the air cavity. The pushing force converting device disclosed by the present disclosure can convert mechanical pushing force into air pressure pushing force.

Abstract: A method of manufacturing a surface emitting laser according to an embodiment of the present disclosure includes the following two steps: (1) a step of forming a semiconductor stacked structure on a substrate, the semiconductor stacked structure including an active layer, a first DBR layer of a first electrical conduction type, and a second DBR layer of a second electrical conduction type, the first DBR layer and the second DBR layer sandwiching the active layer, the second electrical conduction type being different from the first electrical conduction type; and (2) a step of forming a mesa section at a portion on the second DBR layer side in the semiconductor stacked structure and then forming an annular diffusion region of the first electrical conduction type at an outer edge of the mesa section by impurity diffusion from a side surface of the mesa section, the mesa section including the second DBR layer, the mesa section not including the active layer.

Abstract: Vacuum toilet flush valves. The disclosure uses a precise positioning of a magnet with respect to a flush valve plate in order to identify absolute alignment accurately.

Abstract: Provided are a laser diode driver for a multilevel optical signal and a multilevel optical signal transmission device including the same, wherein the laser diode driver includes: a clock generator configured to generate and output a clock signal; a first latch configured to delay output of data corresponding to a first timing of the clock signal from among data sequentially input at each data input period; a second latch configured to delay output of data corresponding to a second timing of the clock signal from among data sequentially input at each data input period; a first synchronization processor configured to output a signal corresponding to the data input by the first latch according to the clock signal; and a second synchronization processor configured to output a signal corresponding to the data input by the second latch according to the clock signal.

Abstract: An optoelectronic semiconductor component is provided that includes a primary light source and a secondary light source. The primary light source and the secondary light source are monolithically integrated in the semiconductor component so that only condensed matter is located between them. The primary light source includes a first resonator containing a semiconductor layer sequence which is electrically pumped during operation. A first resonator axis of the first resonator is oriented parallel to a growth direction (G) of the semiconductor layer sequence. The primary light source is configured to generate pump laser radiation (P). The secondary light source includes a pump medium for generating secondary radiation (S) and the pump medium is optically pumped by the pump laser radiation (P). The first resonator axis points past the pump medium.

Abstract: A folding toilet step stool includes a seat cushion ring and an elevated ladder. The elevated ladder includes a left support rod, a right support rod, a bottom plate and a pedal. The front portion of the seat cushion ring is hinged to the upper portion of the left support rod and the upper portion of the right support rod. The bottom of the left support rod and the bottom of the right support rod are hinged to the bottom plate. The pedal is hinged between the middle of the left support rod and the middle of the right support rod. The left support rod and the right rod are disposed obliquely. The bottom plate is placed on the floor and the seat cushion ring is placed on the toilet, so that children can sit on the seat cushion ring with their feet on the pedal for urination or defecation.

Abstract: A laser assembly comprising: a semiconductor laser with a fast gain medium, wherein the gain relaxation time of the gain medium is smaller than the round-trip time in a standing wave cavity; a DC source coupled to the standing wave cavity; and an AC injection device for injecting an electrical AC signal within a range and/or within an integer multiple of the range into the standing wave cavity, the range within ±1% of the natural round-trip frequency in the standing wave cavity, comprising at least a first and second electric contact section extending along a first longitudinal side of the longitudinal extension of the standing wave cavity, the AC injection device coupled to the first and/or second electric contact section such that the complex amplitude of the electrical AC signal differs for the first and second longitudinal electric contact section.

Abstract: A dual water-vessel flush structure and a pressure-assisted toilet flush system are disclosed. The dual water-vessel flush structure includes first and second vessels and a communicating pipe. The first vessel at an upper part thereof is provided with a water supplement hole and an air supplement hole. The second vessel at a lower part thereof is provided with a water outlet. The first and second vessels are mutually communicated at bottoms of laterals thereof through the communicating pipe. The pressure-assisted toilet flush system includes a dual water-vessel flush structure, a water-air supplement mechanism, a water drainage mechanism, and a control mechanism. The water supplement hole and the air supplement hole both lead to the first vessel through the water-air supplement mechanism. The water drainage mechanism is configured at the water outlet and interacts with the control mechanism.

Abstract: Disclosed are a current excitation type organic semiconductor laser containing a pair of electrodes, an organic laser active layer and an optical resonator structure between the pair of electrodes and a laser having an organic layer on a distributed feedback grating structure. The lasers include a continuous-wave laser, a quasi-continuous-wave laser and an electrically driven semiconductor laser diode.

Abstract: A pulsed laser diode driver includes multiple resonant laser diode driver cells, each cell including an inductor having a first inductor terminal to receive a source voltage, a source capacitor coupled between the first inductor terminal and ground, a bypass capacitor having a first terminal connected to the first inductor terminal and a second terminal connected to a second inductor terminal, a laser diode having a cathode that is connected to the first inductor terminal and an anode that is connected to the second inductor terminal, and a bypass switch connected between the second inductor terminal and ground. Each cell's bypass switch is configured to control a current flow through that cell's respective inductor to produce a high-current pulse through that cell's laser diode, the high-current pulse corresponding to a peak current of a resonant waveform developed at the anode of that cell's laser diode.

Abstract: A distributed Bragg reflector (DBR) structure on a substrate includes a high refractive index layer comprising titanium oxide (TiO2) and a low refractive index layer having a high carbon region and at least one low carbon region that contacts the high refractive index layer. Multiple layers of the high refractive index layer and the low refractive index layer are stacked. Typically, the multiple layers of the high refractive index layer and the low refractive index layer are stacked to a thickness of less than 10 microns. Each of the respective layers of the high refractive index layer and the low refractive index layer have a thickness of less than 0.2 microns.

Abstract: A method (700) of biasing a tunable laser (310) during burst-on and burst-off states includes receiving a burst mode signal (514) indicative of the burst-on state or the burst-off state and when the burst mode signal is indicative of the burst-on state: delivering a first bias current (IGAIN) to an anode of a gain-section diode (590a) disposed on a shared substrate of the tunable laser; and delivering a second bias current (IPH) to an anode of phase-section diode (590b) disposed on the shared substrate. The second bias current is less than the first bias current. When the burst mode signal transitions to be indicative of the burst-off state, the method also includes delivering the first bias current to the anode of the gain-section diode; and delivering the second bias current to the anode of the phase-section diode wherein the first bias current is less than the second bias current.

Abstract: Toilets and accessories associated with toilets are provided. According to various implementations, an exemplary toilet includes a base configured to be fastened to a floor and a pair of bracket panels, which are connected to the base and extend upward from the floor in a vertical direction. The exemplary toilet also includes a tank housing confined between the pair of bracket panels. The tank housing has an adjustable height above the base such that the tank housing can move in the vertical direction between a raised position and a lowered position. The exemplary toilet also includes a bowl attached to the tank housing, wherein the bowl is configured to support the weight of a user.

Abstract: A drainage control device includes a main body, an upper cover, a lower cover, a pressure relief cover, a membrane, and a return member. The main body has a water filling trough, a drainage trough, and a water passage trough. A drainage chamber having a drainage port is defined between the upper cover and the drainage trough. A water filling chamber has a water filling port is defined between the lower cover and the water filling trough. The pressure relief cover and the main body hold a periphery of the membrane. A water passage chamber is defined between the membrane and the water passage trough. A back-pressure chamber having a drain port is defined between the membrane and the pressure relief cover. The membrane is configured to open or close a junction of the water passage chamber and the drainage chamber. The membrane is returned by the return member.

Abstract: The present invention provides a shower assembly with an adjustable water delivery angle, including: an inlet water pipe, having an inlet water channel and a first water outlet and a second water outlet, both of which are in communication with the inlet water channel; a top spray support arm, rotatably mounted on the inlet water pipe; a movable piece, movably disposed on the inlet water pipe and connecting the top spray support arm to the inlet water pipe in a limiting manner, wherein when the movable piece moves to a first position, the top spray support arm rotates around the inlet water pipe; when the movable piece moves to a second position, the top spray support arm is limited along a circumference of the inlet water pipe, wherein the movable piece is provided with a first magnetic attraction element.

Abstract: Provided are embodiments for a laser projection device configured to perform trajectory optimization. The device includes a power source configured to supply power to a power amplifier; a laser projector configured to emit a laser beam towards a surface of an object; a trajectory control module configured to calculate one or more parameters for a projection trajectory of the laser beam; a beam steering unit configured to control a direction of the laser beam; and wherein the power amplifier is operably coupled to the beam steering unit, wherein the output of the power amplifier is based at least in part on the calculated one or more parameters. Also provided are embodiments for a method of operating a laser projection device configured to perform trajectory optimization.

Abstract: The object of the present invention is to provide a faucet apparatus in which both the area for the air inlet port and the area for the babble-water flow discharge port are secured, without excessively increasing sizes of a faucet aerator cap and a faucet apparatus. The air inlet port is provided in a lateral surface of the faucet aerator cap. The flow channel of the spout is provided with a communication port for guiding air between the outside wall and the flow channel toward the air inlet port.

Abstract: An embodiment pulse generator circuit comprises a first electronic switch coupled between first and second nodes, and a second electronic switch coupled between the second node and a reference node. An LC resonant circuit comprising an inductance and a capacitance is coupled between the first and reference nodes along with charge circuitry comprises a further inductance in a current flow line between a supply node and an intermediate node in the LC resonant circuit. Drive circuitry of the electronic switches repeats, during a sequence of switching cycles, charge time intervals, wherein the capacitance in the LC resonant circuit is charged via the charge circuit, and pulse generation time intervals, wherein a pulsed current is provided to the load via the first and second nodes. The charge and pulse generation time intervals are interleaved with oscillation time intervals where the LC resonant circuit oscillates at a resonance frequency.