Abstract: A diverter for use in a shower system, the diverter having a diverter inlet and at least two diverter outlets. The diverter inlet is provided with a diverter inlet fitting adapted to be connected to a hose or pipe. The diverter inlet fitting is freely movable about an axis of the diverter.

Abstract: A water recirculating device, liter counter, and temperature regulator for showers, which allows the user to predetermine the water temperature required for any bathroom having cold water network and hot water network, whereby any water below the predetermined temperature is recirculated passing through the boiler of the house until it reaches the temperature preset in the device, wherein said device is composed of a housing, a temperature regulator, an LCD display, a LED ring, two water valves; a hot and cold water inlet; a three-way valve; a flowmeter connected to a pump; a thermostatic valve; a servomotor; and an integrated circuit board; and a method.

Abstract: A device for caring for a human subject is disclosed. The device includes a frame including a base surfaces and side surfaces, and defining a hollow, and a liquid receptacle disposed beneath the frame. A conduit fluidly connects the hollow to the liquid receptacle. A cover is connected to the frame above the hollow. The cover includes a plurality of nozzles.

Abstract: A water delivery system includes a mixing valve operable for delivering a water flow of adjustable temperature from a water source to a dispensing device downstream from the mixing valve; a thermochromic thermal indicator, fluidly coupled between the mixing valve and the dispensing device, that provides a visible indication of the water flow having achieved a predetermined temperature; and a diverter valve, fluidly coupled between the mixing valve and the dispensing device, and operable to direct the water flow selectively either to the dispensing device or back to the water source. The thermal indicator may be a thermochromic PVC conduit, or it may be a fitting having an inlet, an outlet, a thermochromic PVC element therebetween, and a barrier located between the inlet and the outlet so as to define a flow path that includes an interior surface of the thermochromic element.

Abstract: A multi-mode manipulated water outlet device includes a faucet body and a control box. The faucet body includes a main body, and a second induction unit, a first temperature control valve group, a first water inlet unit and a first water outlet unit that are fixedly disposed on the main body. The first water inlet unit and the first water outlet unit communicate with the first temperature control valve group. The control box includes a second temperature control valve group, and a second water inlet unit and a second water outlet unit communicating with the second temperature control valve group. The first water inlet unit communicates with the second water outlet unit. One flow path manipulation mode is provided through the first temperature control valve group, and another flow path manipulation mode is provided through the second induction unit, thereby providing two different control modes for operating the device.

Abstract: In one aspect, a water conservation apparatus is provided that includes a diverter having an inlet for being connected to a water supply, a primary outlet, and a secondary outlet. The apparatus includes an elongate water storage tank and a supply conduit configured to connect the secondary outlet of the diverter to the water storage tank. The elongate water storage tank has a height and a width perpendicular to the height that is less than the height so that the water from the secondary outlet of the diverter forms a column within the tank. The apparatus further includes a tap having an outlet and a valve, the valve having a closed position that inhibits water flow from the water tank to the outlet and an open position that permits water to be driven out of the outlet by the column of water in the tank.

Abstract: A water heating system for a vehicle includes, among other things, a container and an assembly of a vehicle. The assembly has a thermal energy level that increases as a result of operating the vehicle. The system further includes a path that communicates water back-and-forth between the container and the assembly to increase amount of thermal energy within water that is in the container, and an outlet configured to dispense water from the container for use by a user.

Abstract: The present inventive concept relates to a method for optimizing water usage in a device utilizing water for a group of cleaning procedures, wherein the device comprises a sensor arrangement (518) and a data processing device, wherein the method comprises the steps of: determining a first substance content (400a) of first cleaning phase water from a first cleaning phase of the cleaning procedure (428) using the sensor arrangement (518); in the data processing device, receiving data comprising a target substance content interval requirement (844) of at least one of a plurality of cleaning phases (314); in the data processing device, comparing the first substance content to the target substance content interval requirement (844); and forming cleaning phase water to be used in the at least one of the plurality of cleaning phases (314) by transferring the first cleaning phase water to the at least one of the plurality of cleaning phases (314) based on the comparison.

Abstract: A water saving apparatus for use in a shower stall that has shower walls and a handheld shower head includes a basin having a rear wall, two side walls, a front wall, a bottom wall, and a top wall. All of the walls defines an internal volume. The front wall is open to accept the handheld shower head therethrough. A drain pipe is fixed through the basin and directed to a collection point. In some embodiments, the water saving apparatus includes a side compartment for holding items such as shampoo bottles and the like. In use, with the basin mounted with the shower stall, the handheld shower head is placed into the internal volume to collect water exiting the handheld shower head and direct the water by gravity to the collection point until the water exiting the showerhead is at a desired temperature.

Abstract: An automatic system for providing full body shower with round the body cleaning to a user is illustrated. The automatic system includes a solid supporting unit with a horizontal frame and a vertical frame. A primary cleaning unit and a secondary cleaning unit are provided for the cleaning of the head portion and the body surface of a user. The first horizontal frame and the secondary cleaning unit are configured with vertical upward and downward movement along the vertical frame using an elevating means. Each of the primary and secondary cleaning units comprises a plurality of nozzles, brushes and ultraviolet (UV) light sources. An air dryer chamber propelling dry air for drying the wet body and head portion of the user is utilized. The automatic shower system can also be used in the horizontal orientation.

Abstract: A plumbing assembly to support a modular bathroom positioned within a shipping container include: a subfloor positioned above a main floor by less than about 7 inches; a toilet positioned and a shower positioned on the subfloor; a sink positioned on a vertical wall adjacent the subfloor; and a plumbing assembly between the subfloor and the main floor that receives fluid from the shower, the toilet, and the sink. The plumbing assembly includes: a shower drain pipe, sink drain pipe, and a main drain pipe draining the shower drain pipe, the sink drain pipe, and the toilet. The main drain pipe diameter is 3 times larger than the shower drain pipe diameter. The shower drain pipe is connected to the main drain pipe in an eccentric position and at a radial position of the main drain pipe closest to the main floor of the shipping container.

Abstract: The present invention describes a hybrid device allowing for purification and either recycling of water or discarding of water, wherein said hybrid device comprises a recirculation loop which facilitates recirculation of water within said hybrid device, and also comprises: a filter system comprising at least one filter; at least one water quality sensor, a modified drain, which is adapted to collect the water used and to facilitate the stream of water used towards the recycling loop and filter system, so that water can be purified and recirculated, or towards drainage; a water treatment unit arranged for hygenisation of water; a functionality sensor for the water treatment unit; wherein the hybrid device is arranged so that: it can operate in a recirculation mode providing purification and recirculation of water, until the water passing through said hybrid device is at a maximum level of contaminants; when any of said sensors is indicating the need to do so, and in particular when said at least one water q

Abstract: An overflow device for an appliance such as a bathtub, sink or the like. The overflow device comprises a body which connects the overflow device to the appliance. The body includes a body inlet adapted to be connected to an appliance outlet. The body also includes a body outlet adapted to be connected to a soil stack. A drainage flowpath is defined between the body inlet and the body outlet. In use, the drainage flowpath creates a water seal between the body inlet and body outlet. The overflow device also includes a pipe arrangement in fluid communication with the body, where the pipe arrangement defines an overflow flowpath between the body inlet and the body outlet, such that, in use, at least a portion of the overflow flowpath is beneath the level of the water seal.

Abstract: A plumbing system for a shower or the like includes a mixing valve operable for delivering a water flow of adjustable temperature from a water source to a dispensing device downstream from the mixing valve. The system further includes a diverter valve between the mixing valve and the dispensing device, and operable to divert a selectively variable portion of the water from the mixing valve back to the water source. A thermochromic thermal indicator, downstream from the mixing valve, may advantageously provide a visible indication of the water flow having achieved a predetermined temperature. The thermal indicator may be a thermochromic PVC conduit, or it may be a fitting having an inlet, an outlet, a thermochromic PVC element therebetween, and a barrier located between the inlet and the outlet so as to define a flow path that includes an interior surface of the thermochromic element.

Abstract: Aspects of the present disclosure are directed toward mitigating water escapement. As may be implemented in accordance with one or more embodiments, an apparatus and/or method involve detecting liquid flow in a liquid channel, and controlling the flow of liquid through the liquid channel with a liquid flow valve in response to control inputs. In response to indicated liquid flow, mitigating the detected liquid flow based upon at least one input variable, each input variable characterizing operational conditions of a premises in which the liquid flow is detected. One or more of control of the flow-arresting circuit and reporting of liquid flow characteristics provided by the flow-arresting circuit are provided via communications with a remote user.

Abstract: A portable shower enclosure includes a base frame composed of a rear frame, a first lateral frame pivotably coupled to a first lateral side of the rear frame, and a second lateral frame pivotably coupled to second lateral side of the rear frame. A seat with a top surface opposite a bottom surface defines a drain aperture therethrough. One or more bumpers extend from the bottom surface of the seat and are configured to elevate the seat above a rim of a toilet bowl. A waterproof liner defines an aperture therein sized and configured to be positioned over the toilet bowl under the seat. The liner has a frame coupling assembly configured to adjustably couple the liner to the first lateral frame, the second lateral frame, and the rear frame.

Abstract: A method and apparatus for solving a prevailing problem that occurs when cooled water accumulated in hot water pipelines is wasted down the drain while an individual waits for the discharge of hot water at a point-of-use is described. The described water recovery method and apparatus prevents the waste of usable cooled water accumulated in the hot water pipelines by utilizing a diverter unit with a three-way diverter valve, a solenoid valve, and a thermoswitch to implement a cycle that diverts the accumulated cooled water to a holding container before it can be discharged at the point-of-use and allows only hot water to pass through and reach the point-of-use. As a result, the described water recovery process and apparatus allows valuable fresh water to be stored and conserved for later use.

Abstract: Systems and methods are disclosed for maintaining a temperature of water for a safety shower within a desired range using geothermal energy. A conduit containing at least 150 liters of water can be fluidly coupled to a safety shower through which at least a portion of the water can exit. The conduit can be disposed under ground soil at a depth such that the water buffer is maintained at a temperature of between 15 C to 40 C as a direct function of a thermal inertia of the ground soil.

Abstract: A controlled shower rinse system installed in a shower stall that mixes a selected medicated substance, like a medicated shampoo for example, with the water that flows from the conventional shower head of a facility's shower system. The rinse system including a programmable dispenser for regulating the introduction of the medicated substance to the shower system, a mixer, and a sensor that supplies an electrical control signal to the dispenser for causing operation thereof to effectively blend water from the shower system's supply line with the medicated product and directing the blended water through the shower system's shower head.

Abstract: A two parts shower/hair and body care dryer system that is contained within one installation unit. The shower and drying units are enclosed with durable glass wall and separated with bi-fold glass shower doors between the shower and the drying room. These doors are fold on the wall after showering by the user to access the drying room and to exist the unit. It is uniquely designed for everyone including the physically challenged. Imagine, after showering, having the pleasure of heated flooring in a drying room and a quiet flow of warm air from a built in over head dryer that blows radiating heat, covering ones body from head to toe. The dryer has many air vents that make the drying experience quicker, comforting and relaxing as the user is blown dry, which is un-achievable with the use of towels. The over head dryer also has a detachable hand held dryer for added convenience. The bi-fold glass shower doors decrease the size of the shower room when in use, and increase its size when the dryer is being used.

Abstract: A shower control system includes a water subsystem, a steam subsystem, and a controller in communication with the water subsystem and the steam subsystem. The water subsystem includes one or more electronic valves configured to control a flow rate and a temperature of water dispensed from one or more shower outlets within a shower enclosure. The steam subsystem is configured to generate and dispense steam from one or more steam outlets within the shower enclosure. The controller is configured to control the water subsystem and the steam subsystem to provide a spa experience including a predetermined and coordinated sequence of water outputs from the shower outlets and steam outputs from the steam outlets.

Abstract: A fluid delivery assembly for a shower includes a waterway assembly, a spray head, and a water treatment assembly. The spray head is configured to receive fluid from the waterway assembly and deliver fluid from an outlet. The water treatment assembly is configured to provide a treatment to the fluid of the waterway assembly.

Abstract: A cleaning system according to the invention includes a scanning unit for determining body dimensions, for example, the girth measurements such as height and breadth of the person to be cleaned, at least two moldings having a body-size opening, wherein the opening corresponds to a pose, that is, a body position of the person to be cleaned, a conveying unit that conveys the person to be cleaned through the moldings, wherein at least one of the moldings contains adjustable spray nozzles, the spacing of which from the person to be cleaned is adjusted corresponding to the body dimensions of the person to be cleaned determined by the scanning unit.

Abstract: An apparatus includes a sensor module, a transmission module, a flow reduction module, and a flow return module. The sensor module senses presence of a shower item on a shelf in a shower and senses a lack of presence of the shower item on the shelf. The transmission module wirelessly transmits an item missing signal. The item missing signal is transmitted in response to sensing a lack of presence of the shower item on the shelf. The flow reduction module reduces water flow to a shower head in the shower from a first flow level to a reduced flow level in response to wirelessly receiving the item missing signal. The flow return module returns water flow to the first flow level in response to expiration of a restore time delay or wirelessly receiving an item return signal in response to sensing a presence of the shower item on the shelf.

Abstract: A user interface system for a vibroacoustic bath includes a resistive touchscreen device configured to display images and to receive touch input via a panel of the resistive touchscreen device. The resistive touchscreen device is configured to display at least one image for use in controlling the vibroacoustic bath. The resistive touchscreen is further configured to receive a user selection relating to the image. The user interface system also includes a control circuit configured to use the received user selection to determine output signals for driving a plurality of transducers of the vibroacoustic bath.

Abstract: An adapter for attachment to a water supply pipe and an exterior conduit includes an adjustable element, a mounting element, and at least one inner fastening element. The adapter also may include filtering elements, covers, and other elements which add in the operation and appearance of the adapter. The adapter may be incorporated in any assembly that requires exterior routing of water from a water supply pipe to one or more exterior conduits. These conduits may be any device or accessory that routes water from the water supply pipe, through the adapter, to an exit point. Examples of exterior conduits include waterborne bars, overhead shower assemblies, handheld shower assemblies, and other types of waterborne accessories.

Abstract: In a combination outdoor shower and greenhouse, privacy for the shower component is provided by the strategic arrangement of plantings within the greenhouse. Optionally, the shower can be enhanced with heaters, steam generators, mist generators and/or lighting to create a spa, sauna and/or steam-bath effect. The shower and spa enhancements will operate synergistically with the greenhouse plantings, which will be selected and positioned so as to benefit optimally from the temperature, humidity and lighting associated with the shower/spa features.

Abstract: Systems and methods are disclosed for maintaining a temperature of water for a safety shower within a desired range using geothermal energy. A conduit containing at least 150 liters of water can be fluidly coupled to a safety shower through which at least a portion of the water can exit. The conduit can be disposed under ground soil at a depth such that the water buffer is maintained at a temperature of between 15 C. to 40 C. as a direct function of a thermal inertia of the ground soil.

Abstract: A shower system comprising: an enclosure, the enclosure comprising: at least one interior wall; at least one exterior wall; an opening; a floor; a top; an exterior power button located on an exterior wall and configured to turn the shower system on or off; a control panel located on an interior wall; a thermostatic valve located on an interior wall, a mirror located on an interior wall; an overhead light attached to the top, and configured to stay on about one minute after powering off, the overhead light in communication with the exterior power button and the control panel; audio speakers located at the top, and in communication with the control panel and exterior power button, and configured with the control panel to provide audible alerts including indicating when the shower system has achieved the proper preselected water temperature; and a phone system in communication with the control panel.

Abstract: A shower drying system directs air downwardly onto the walls, surfaces and/or shower curtain of a shower enclosure. In one embodiment, the air is heated. The movement of the air in the downward direction helps urge droplets of water on the shower surface towards a drain at the lower level of the shower enclosure. Remaining water on the surfaces is evaporated into water vapor that is exhausted from above the shower enclosure, thereby reducing mold and mildew.

Abstract: An apparatus includes a sensor module, a transmission module, a flow reduction module, and a flow return module. The sensor module senses presence of a shower item on a shelf in a shower and senses a lack of presence of the shower item on the shelf. The transmission module wirelessly transmits an item missing signal. The item missing signal is transmitted in response to sensing a lack of presence of the shower item on the shelf. The flow reduction module reduces water flow to a shower head in the shower from a first flow level to a reduced flow level in response to wirelessly receiving the item missing signal. The flow return module returns water flow to the first flow level in response to expiration of a restore time delay or wirelessly receiving an item return signal in response to sensing a presence of the shower item on the shelf.

Abstract: A digital shower system contains a showering equipment including at least one first watering device and at least one second watering device; an input interface including a power key, a knob, an ok key, a return key, and a plurality of outlet switches; a valve unit including a motor, a mixing valve, and a number of outlet valves; a central process unit including a setting module, a time module, a memory module, a calculator module, and a water monitor module; and an indicator so that quantity of water use is known by the user to save water consumption.

Abstract: A shower system comprising: an enclosure, the enclosure comprising: at least one interior wall; at least one exterior wall; an opening; a floor; a top; an exterior power button located on an exterior wall and configured to turn the shower system on or off; a control panel located on an interior wall; a thermostatic valve located on an interior wall, a mirror located on an interior wall; an overhead light attached to the top, and configured to stay on about one minute after powering off, the overhead light in communication with the exterior power button and the control panel; audio speakers located at the top, and in communication with the control panel and exterior power button, and configured with the control panel to provide audible alerts including indicating when the shower system has achieved the proper preselected water temperature; and a phone system in communication with the control panel.

Abstract: Various apparatus and methods involve a showerhead that directs a stream of fluid through a portion of a cavity in a direct heat transfer relationship with a reflective surface prior to directing a stream out of the cavity and through a plurality of apertures toward a user. In an illustrative example, the user may view an image on the reflective surface while being sprayed with the plurality of streams in a steam filled environment. In some examples, the showerhead may include an inlet configured to direct the fluid toward the reflective surface as it enters the cavity. In some examples, the showerhead may operate to substantially reduce or prevent condensation from forming on the reflective surface by promoting heat transfer from the fluid to the reflective surface.

Abstract: A clock shower head includes a hollow body, a hydroelectric generator, a storage battery, a clock processor, a clock displayer and a main control circuit; the hydroelectric generator, the storage battery, the clock processor and the main control circuit are disposed inside the sealing zone of the hollow body. The clock shower head has both illuminating and time display function. People can see the time when enjoying the shower using the clock shower head.

Abstract: The present invention provides a recirculating shower system comprising a shower head 22, a circuit configured to recirculate at least part of the used water to the shower head, a heater 18 included in the circuit for heating the recycled water to a temperature at which micro organisms in the water are killed and a heat exchanger 16 arranged to exchange heat between the water flowing towards and away from the heater. The system provides an efficient use of water and energy and also allows a high flow rate of water at a relatively low use of energy and water.

Abstract: A wheeled cart has liquid cooling and liquid heating devices separated by thermal insulation. Pumps circulate cooled liquid and heated liquid through hoses to cooled packs and heated packs of patient treatment. Thermostats control the temperature and continual re-circulation of the cooled and heated liquids through the packs to maintain the proper temperature at all times without changing the packs.

Abstract: The invention concerns a system for stain removing, washing, drying and ironing treatment of garments and/or washing of dishes in pre-existing plumbing fixtures like showers, bathtubs, combined shower—bathtub and shower—sauna, each provided with a protective stall. The system comprises a frame, composed of at least two posts (15) connected by a top crossbeam (16), placed inside the stall; collapsible or foldable hangers or models (18), assembled on the frame for hanging garments thereon; means (19, 20) for supplying and delivering a washing and rinsing fluid for garments supported by hangers or models (18); and means per supplying airflow in the stall for drying and ironing said garments, while the latter are hung up on said hangers or models. Alternatively to hangers or models, the system comprises plate-rack for dishes to be washed.

Abstract: A shower or tub enclosure incorporating a spray nozzle in the drain system to allow a spray of water to be directed up from the lower area of the enclosure. The spray nozzle may be optionally controlled by an individual flow diverter. The spray nozzle may further comprise a plurality of spray selectors for shaping the spray.

Abstract: An electronic shower system comprises in major part a console and plumbing assembly and effective for reducing water use and cost by enabling the storage and use of preset shower settings, the shower console configured to adjust the flow of hot and cold water from hot and cold water lines fluidly attached to a shower faucet via the use of motors and water valves and where the console can further comprise such additional features as a radio unit.

Abstract: The present invention relates to collection and storage drinking water, e.g. as a step in disaster preparedness. The invention relates to emergency preparedness kits comprising a food-grade bladder composed of thin plastic film for covering the inside surface of a bathtub to provide a barrier between the surface of the bathtub and drinking water contained therein, and for enclosing the contained water.

Abstract: The invention relates to a ventilation device for ventilating shower streams that is configured as an insert, and that may be utilized in a connection of a sanitary fitting, particularly in the connection of a shower head housing. The insert contains at least one water throughput channel connected to a ventilation channel such that air is suctioned in through the ventilation channel when a flow passes through the water throughput channel, ventilating the water stream. The insert may have a receptacle for a flow restrictor. A backflow preventer may be provided in order to prevent water leakage from the exterior end of the ventilation channel.

Abstract: A dynamic shower system comprises a user actuator indicating said user's desire to use recycled water during the shower, a shower head, a drain, a first valve capable of selecting water to be emitted from said shower head from a potable water source or water from a mixture of potable water and recycled water from said drain, and a processor, said processor in communication with said user actuator and said first valve wherein said first valve is capable of being controlled by said processor. The shower system may be capable of dynamically switching between said potable water only and said mixture of potable and recycled water depending upon the certain conditions being detected by said processor.

Abstract: A therapeutic shower assembly for weight reduction includes a water heater for heating water at relatively low pressure and a mechanism for spraying the heated water at a relatively low pressure onto a majority of a human body. The mechanism also includes multiple arrays of generally horizontally disposed openings at multiple levels and wherein the water is directed upwardly at an angle of between about 40° to about 60° from horizontal whereby the droplets fall onto portions of the human body. The assembly also includes a valve for stopping the spray of heated water and a heater for directing drying air at a temperature of about 35° to 45° to thereby dry the body.

Abstract: A fluid control device connected to a water pipe and having a mini water turbine and electrical generator combination for generating electricity by taking advantage of the water flow. The electricity is supplied to a temperature measurement member for measuring temperature of the water flowing through the device. The temperature in the form of electrical signal is sent to an LCD panel and circuit assembly for showing so as to visually alert a person using the tap water.

Abstract: An application for a shower drying system that directs air downwardly onto the walls, surfaces and/or shower curtain of a shower enclosure. In one embodiment, the air is heated. The movement of the air in the downward direction helps urge droplets of water on the shower surface towards a drain at the lower level of the shower enclosure. Remaining water on the surfaces is evaporated into water vapor that is exhausted from above the shower enclosure, thereby reducing mold and mildew.

Abstract: The invention relates to a method and a device for generating a nanoaerosol, wherein at least one fluid to be atomized is atomized in a nozzle via a nozzle opening of the nozzle along a discharge direction in the form of fluid particles, the atomized fluid particles are deflected from the discharge direction and larger fluid particles are at least partially separated from smaller fluid particles, the separated larger fluid particles are returned to the fluid to be atomized and the smaller fluid particles are dispensed onto the environment. A cartridge in which the nozzle and the fluid to be atomized are arranged is used. According to the invention, a stream of a carrier gas is generated in the nozzle and at least one fluid to be atomized is brought into contact with the carrier gas.

Abstract: A portable emergency unit comprises an eyewash and shower station coupled to a chassis. A water tank and a pump are coupled to the chassis and are in fluid communication with the eyewash and shower station so that the pump is operable to supply water from the water tank to the eyewash and shower station when the eyewash and shower station is activated. A temperature control system is also coupled to the chassis and is in fluid communication with the water tank. The temperature control system is operable to maintain the temperature of water stored in the water tank within a predetermined range.

Abstract: A systematic decontamination and containment method for decontaminating personnel is disclosed. This method includes providing a plurality of components positionable on a selected location for establishment of a multi-station decontamination and containment facility to decontaminate personnel and to contain contaminants collected during the decontamination process. The components can include a plurality of collapsible frame and roof assemblies, wall and roof covers, a weapons clearing assembly, a weapons storage locker, a hanging bar, a signage assembly, collapsible containment hamper assemblies, a covered dispensing assembly, a shuffle box, a multi-wipe dispensing assembly, and a transportable containment enclosure. The enclosure is shaped and sized to removably retain the system's components for transportation or the like.

Abstract: A housing has an upper component formed of an upper plate and a periphery. The upper plate has an upper central aperture. The housing has a lower component formed of a lower plate and a periphery. The lower plate has a lower central aperture. An annular printed circuit board is positioned within the housing. A plurality of light emitting diodes are secured to the printed circuit board and extend downwardly therefrom. A plurality of equally spaced small apertures in the lower plate of the lower component each receive one of the light emitting diodes for providing light.