82results about How to "Eliminate fog" patented technology

An adjustable face mask having a body conforming substantially to the facial structure of a wearer. The face mask is provided with a neck protector and removable filter and with a strip of fabric designed to push air down to the sides of the wearer's face in order to eliminate fogging of the wearer's goggles. The face mask can optionally provide neck protection with a descending neck member.

Apparatus or systems which employ luminescence-quenching to produce a signal indicative of oxygen concentration. Components of such systems include: (1) an airway adapter, sampling cell, or the like having a casing and a sensor which is excited into luminescence with the luminescence decaying in a manner reflecting the concentration of oxygen in gases flowing through the airway adapter or other flow device and is in intimate contact with a window in the casing; (2) a transducer which has a light source for exciting a luminescable composition in the sensor into luminescence, a light sensitive detector for converting energy emitted from the luminescing composition as that the composition is quenched into an electrical signal indicative of oxygen concentration in the gases being monitored, and a casing which locates the light source and detector in close physical proximity to the window but on the side thereof opposite the sensor; and (3) subsystems for maintaining the sensor temperature constant and the temperature of the window above condensation temperature and for processing the signal generated by the light sensitive detector. Airway adapters, sampling cells, and transducers for such systems are also disclosed.

An air conditioner includes a compressor for compressing refrigerant, an exterior heat exchanger for performing heat exchange between refrigerant and outside air, an interior heat exchanger for performing heat exchange between the refrigerant and air to be blown into the compartment, a decompression unit for decompressing high-pressure refrigerant, and a heater that heats air using high-temperature refrigerant discharged from the compressor as a heating source. In a dehumidifying and heating operation, refrigerant in the interior heat exchanger absorbs heat from air so that the air is cooled and dehumidified, and the heater heats air having been dehumidified and cooled by using the heating source, so that low-humidity and high-temperature air is supplied into the compartment. The heater can be disposed to indirectly heat air by heating a fluid flowing through a heater core for heating air, or to directly heat air to be blown into the compartment.

The invention discloses a preparation method of polycrystalline silicon. The method comprises the following steps of: undergoing a chemical vapor deposition reaction on trichlorosilane and high-purity hydrogen serving as raw materials at the high temperature of 1,050-1,250 DEG C and under the pressure of 0-0.8 MPa in a reduction furnace reactor; and depositing polycrystalline silicon on the surface of a heat-emitting silicon core. The method is characterized in that: 0.1-20 percent of hydrogen halide gas is introduced into a reduction furnace in a chemical vapor deposition process. According to method, silicon powder produced in the bulk phase of the reduction furnace can be suppressed effectively, an atomization phenomenon is eliminated, heat produced by reacting can be applied to deposition of polycrystalline silicon, the energy utilization efficiency and silicon depositing rate are increased, and the reaction temperature and the halogenated silane concentration are not required to be lowered; and due to etching of hydrogen halide on the surface of a silicon stick, the surface appearance is improved, and a dense polycrystalline silicon stick is obtained.

The invention discloses a preparation method for an epoxy resin binding agent diamond grinding tool with high polishing performance. A working layer is mainly prepared from a diamond grinding material, an auxiliary grinding material, epoxy resin, a curing agent, rare earth polishing powder, filler and a dilution agent. The preparation method comprises the steps of uniformly and mechanically mixing 5-20 parts of the diamond grinding material, 5-20 parts of the auxiliary grinding material, 5-25 parts of the rare earth polishing powder and 5-40 parts of the filler to obtain a first mixture, then uniformly mixing and stirring the first mixture with 20-40 parts of the epoxy resin, 7-15 parts of the curing agent and 0.5-10 parts of the dilution agent to obtain a final mixture, injecting the mixture with flowability into a plastic mold in a pouring manner, and curing the mixture to obtain the epoxy resin binding agent diamond grinding tool with high polishing performance. The materials are in percentage by mass. Compared with the conventional hot pressing molding method, the preparation method has the advantages that the technology is simple, the energy is saved, and the emission is reduced; the pollution, which is caused by solid dust, to the environment is reduced, and the production speed is high; compared with the conventional product in the foreign country, the epoxy resin binding agent diamond grinding tool has the advantages of good polishing effect, high polishing efficiency, few air hole defects of the grinding tool and the like.

A system for preventing or removing fogging from and endoscope which includes an endoscope having a distal end and a heating module disposed over the distal end of the endoscope. The heating module may include a heating element arranged as a single-segment heater, or in a series of elongated portions extending circumferentially around the distal end of the endoscope connected by bend portions that are parallel or tangent to a longitudinal axis of the endoscope. The heating module may also be disposed on or adhered to an outside surface of the endoscope, and may include a heating element made from a resistive heating material. The heating module may be provided as a single-use disposable device, and may include an outside surface made from a biocompatible or sterilizable insulating material.

The invention discloses a vending machine automatic demisting system and method based on image recognition. The vending machine automatic demisting system comprises a vending machine with a transparent glass cabinet door, a demisting heating device is arranged on the glass cabinet door of the vending machine, and a camera shooting device with a camera facing a video sensing area on the glass cabinet door is installed at the outer end of a shelf of the vending machine; a local control system connected with the camera shooting device and the demisting heating device is arranged in the vending machine. The local control system controls the camera shooting device to shoot a video sensing area image every a preset time, converts pixel points of each received video sensing area image into corresponding gray values and calculates the mean value of the gray values of the pixel points of each video sensing area image; if the mean value of the gray values of the pixel points is larger than or equal to a demisting threshold value, the demisting heating device is started, and if the mean value of the gray values of the pixel points is smaller than a demisting stopping threshold value, the demisting heating device is stopped from running.

This Personal Respirator is a respiratory protection air-purifying device that minimizes the area required in front of the face, especially around the mouth area, by locating the very lightweight filter and plenum close to the head, connected by a airway tube forming a complete unit with the mouthpiece in the mouth, supported by the mouth. The airway tube and the filter plenum are both of minimal internal area and close to the mouthpiece, thus minimizing the internal volume of used air, residual nitrogen, and making the outside dimensions small enough to be compatible with most safety equipment. The respirator requires no straps and is preferably provided with a small tether to the nose clip and is worn in front of the head with the mouthpiece inserted into the mouth, the filter then supported by the mouth, and the nose clip secured on the nose.

The invention relates to fog-resistant goggles as well as to methods of defogging goggles during use and methods of producing fog-resistant goggles. Also included is a method and apparatus to direct airflow toward the lens and away from the eyes of an individual wearing the goggles.

The invention relates to a highway spraying fog dissipation system which is characterized by comprising a pool, a water supply station, a water supply main pipe and water supply branch pipes, wherein the water supply main pipe is connected with a water pump connected in the water supply station, and is installed on an isolation strip arranged in the middle of a highway; a plurality of water supply branch pipes are connected to the water supply main pipe, and are arranged at intervals with a certain distance; and each water supply branch pipe is provided with a switch valve and a nozzle, and the nozzle is in a spherical shape. The invention has the advantages that the highway spraying fog dissipation system can carry out spraying fog dissipation on highways at both sides of the isolation strip, is convenient to install, does not need to be divided into left direction and right direction, and can efficiently eliminate heavy fogs on the highway to ensure that a vehicle can normally run.

The invention discloses an ultrasonic vibration type front windshield. When the front windshield is used in rainy days, rainwater is attached to the front windshield to influence driving, the cleaningof the windshield wiper is limited, and particularly, the problem that the driving sight is blurred during low-speed driving exists. The ultrasonic vibration type front windshield comprises a composite glass body and an ultrasonic vibration assembly, the composite glass body comprises an inner-layer glass body, an explosion-proof layer, an outer-layer glass body, a noise reduction layer and a vibration layer, wherein the inner-layer glass body, the explosion-proof layer, the outer-layer glass body, the noise reduction layer and the vibrating layer are sequentially attached into a whole from inside to outside; the ultrasonic vibration assembly comprises a connecting band and a plurality of ultrasonic transducers; the connecting band is arranged on the composite glass body in the peripheraldirection of the composite glass body; the ultrasonic transducers are evenly distributed on the connecting band in the length direction of the connecting band; and each ultrasonic transducer is tightly attached to a vibration layer in the composite glass body. The invention is used for automobiles.

The invention discloses a preparation method of a hydrophilic anti-fog film with wear resistance and frost resistance. The method comprises the following steps of: (1) preparing a cellulose solution,a metal iron ion cross-linking agent and a polyacrylic acid solution with certain concentrations; and (2) mixing and oscillating a certain volume of the three solutions, spin-coating the three solutions on a cleaned glass sheet by using a spin coater, taking out the glass sheet after spin-coating is finished, and drying the glass sheet to obtain the glass with the anti-fog performance. According to the method, the hydrophilic anti-fog film with wear resistance and frost resistance is prepared by adopting a simple spin-coating method, and the method has the advantages of a simple process, easiness in operation, controllable reaction conditions, wide sources of raw materials and the like, does not pollute the environment, has an excellent anti-fog effect and good mechanical properties, and does not influence the light transmittance of the glass.

The invention discloses a warm air system used for removing automotive glass fog and frost, comprising an air pipe and a minitype warm air blower, wherein the air pipe is wholly arranged on the edge periphery of a front windshield; air outlets are uniformly formed in the air pipe; a tee joint is arranged on the inlet end of the air pipe; one port is communicated with the minitype warm air blower by an air supply pipe of the warm air blower; another port is communicated with a vehicle-mounted air supply system by an air supply pipe of the vehicle-mounted air supply system; the minitype warm air blower is powered up by an automotive storage battery through a vehicle-mounted power supply jack. According to the warm air system, the temperature of glass can rise in a very short time due to the warm air system arranged on the edge periphery of the windshield, a better effect is realized for removing snow ice on the exterior of the glass or fog on the interior of the glass, the use is convenient, the manufacturing cost is low, and a safe and reliable snow, frost and fog removal device is provided for vast drivers.

An oscillating shower massager that provides a rotating or oscillating spray pattern that may be adjusted by the user. The oscillating shower massager has a housing with a forward facing water discharge outlet and a rotating side discharge outlet. A water driven gear system drives the rotating side discharge outlet. A series of stop pins are provided that may be used to adjust the rotation. When the stop pins are retracted, the rotating discharge outlet turns a full 360 degrees, allowing the user to spray all the walls and ceiling of the shower stall to facilitate cleaning. When the stop pins are extended, the rotating side outlet provides an oscillating spray pattern. A heated shaving mirror is incorporated onto the front of the housing.

The invention belongs to the technical field of backup mirrors, and particularly provides a dustproof defogging backup mirror for an automobile. The dustproof defogging backup mirror comprises a firstair inlet, a lens fixing plate, a lens heating plate, a buffer cushion, a second air inlet, a frame, a dustproof protection flexible steel plate fixing shaft, a dustproof protection flexible steel plate clamping groove, a dustproof protection flexible steel plate, a lens, a lens protection cushion, a heating positive electrode, a heating negative electrode, a winch drive motor, a supporting roller, a bearing, a dustproof protection fixing column, a cover plate and a hinge. The winch drive motor controls the dustproof protection flexible steel plate to move along a sliding groove, a sealed space is formed on the periphery of the lens when the automobile is not used, and contamination of dust to the lens is avoided. Wind power is transmitted above and below the lens through the first air inlet and the second air inlet in the driving process of the automobile to clean away dust on the surface of the lens, when the temperature is reduced, fog is generated on the backup mirror due to the temperature difference between the interior and the exterior of the automobile, the lens heating plate is used for heating the lens of the backup mirror, and therefore the situation can be avoided.

The invention relates to a self-heating temperature control system for a palm/finger print instrument. The self-heating temperature control system mainly comprises a temperature control optical component, a temperature control electronic component, an imaging optical component group and an image receiver; the temperature control optical component comprises a base layer, a conductive film layer anda protective layer; the conductive film layer is directly optically coated on the base layer and has high light transmittance and conductivity under an extremely thin thickness condition, that is, the conductive film layer can meet a self-heating requirement without effecting the overall optical path of the system; when the system works, light passes through the temperature control optical component, then passes through the imaging optical component group, and is ultimately imaged on the image receiver; the temperature control electronic component controls the conductive film layer so that the temperature of the temperature control optical component is within a suitable range, thus, the influence of environment temperature change on image resolution can be effectively eliminated, and fogon the surface of a collection surface under non-ideal ambient temperature can be effectively eliminated, and the stability of the palm/finger print instrument can be improved.

The invention discloses glasses legs, a glasses frame and goggles, and belongs to the field of glasses. The goggles disclosed herein have a wiper and a drainage tube. The wiper can scrape fog water onthe lenses away from the lenses and discharges the fog water through the drainage tube, so that the fog water is prevented from blocking the visual field.

A system and method for LiDAR defogging is disclosed. The method comprises: applying a detection device to determine the fog status and generate a histogram; determining the fog concentration between a target location and the detection device in the histogram according to the histogram; and applying a defogging method to defog the fog concentration between the target location and the detecting device.