34results about How to "Adjustable light intensity" patented technology

The invention discloses a liquid crystal lens type dimming device, comprising a first substrate, a second substrate, electrode layers and orientation layers, wherein the electrode layer and the orientation layer are arranged on each one of the first substrate and the second substrate; liquid crystal is added between the two substrates, and is packaged in a box by frame packaging glue to form a liquid crystal lens; one or two electrode layers on the two substrates comprises/comprise pattered electrode/electrodes in an electrode area and a shading area; a baffle is arranged above the second substrate; the baffle comprises a baffle light-transmitting area and a baffle shading area; the baffle shading area is less than the electrode area in the pattered electrode/electrodes in area, and is located above the electrode area; and the two electrode layers are respectively connected with an electrode voltage control circuit. The liquid crystal lens type dimming device provided by the invention obtains a proper lens focal distance by adjusting a voltage between the electrodes, the intensity of light bypassing the baffle is adjusted, and a backlight use ratio is improved. Furthermore, a backlight source, a colorful filtering sheet, a reflection layer, a diffusion sheet and the like are additionally arranged, so that the dimming device is used for the display. The dimming device further can be used for the application, such as detection and receiving of light signals.

An automobile fuel volume non-contact photoelectric sensor is made by the characteristic that a photoresistance varies according to the variation of the strength and the irradiation area of light. When the fuel is in a full state, a float 16 is located in the top position, a shading plate 2 hardly shades light emitted from a light source 5, and the photoresistance is minimum; when the fuel reduces, the shading plate 2 decreases correspondingly to shade corresponding light ray of the light source 5, and the photoresistance increases correspondingly; and when the fuel deceases to an empty state, the shading plate 2 is located in the lowest position and nearly shades all light ray of the light source 5, and the photoresistance is maximum and designed to be null.

The invention discloses a biogas purification membrane bioreactor and a biogas purification process system thereof. The bioreactor comprises a reactor body, wherein the reactor body comprises an uppercasing and a lower casing; the top of the upper casing is provided with a reactor circulation water inlet and a reactor circulation water outlet; a reactor air inlet and a reactor air outlet are formed in the bottom of the lower casing; a reaction groove is formed inside the upper casing and the lower casing; a liquid phase chamber is arranged inside the upper casing; a gas phase chamber is arranged in the lower casing; silicon rubber gaskets are arranged between the gas phase chamber and the liquid phase chamber; a flat plate membrane is arranged between the silicon rubber gaskets; microalgae is attached onto the flat plate membrane. The bioreactor uses the flat plate bioreactor for reducing the mass transfer resistance of the gas; the mass transfer efficiency of the biogas is improved;during the biogas purification, the microalgae can also be enriched; available biomass is obtained; the reactor has a simple structure, is convenient to operate, and has good sealing performance.

The invention relates to an illumination-intensity-adjustable no flickering visible light communication transmitting end controller. The controller comprises a constant current source driving circuit and a digital RLL coding module, wherein the constant current source driving circuit comprises a constant current source parameter selection device and a constant current source circuit, the digital RLL coding module comprises an RLL coding mode selection device and an RLL coding circuit, and the constant current source circuit is under the control of the constant current source parameter selection device to carry out real-time constant current parameter adjustment, and the RLL coding circuit is under the control of the RLL coding mode selection device to carry out real-time coding mode adjustment. The controller is advantaged in that real-time brightness grade adjustment on LED lamps is realized through utilizing run length limited codes and the constant current source driving circuit, no system flickering phenomenon occurs, and high-speed signal transmission can be kept.

The invention provides a full-spectrum CSP packaging light source. A high-color temperature white CSP light source, a low-color temperature white CSP light source, a blue CSP light source, a green CSP light source and a red CSP light source are packaged on a packaging bracket at a certain number ratio; the high-color temperature white CSP light source and the low-color temperature white CSP light source can adjust a color temperature and the light emitting intensity as main light sources, and the blue CSP light source, the green CSP light source and the red CSP light source supplement a missing band as single-color light filling sources, so that the overall light source is high in saturability and the spectrum continuity is good. The high-color temperature white CSP light source and the low-color temperature white CSP light source are alternately packaged on the packaging bracket on the periphery of a light filling source region, so that the full-spectrum CSP packaging light source has a uniform light mixing characteristic in color temperature adjustment of the single-color light sources in the light filling source region or the high-color temperature white CSP light source and the low-color temperature white CSP light source, and has the advantages of a good light effect, excellent light quality and an adjustable color temperature.

The invention discloses a drawing tracing table for animation design, relates to the technical field of animation design, and solve the problems that the draft design for drawing is prone to displacing during drawing on an existing light table, accuracy of the drawing is affected when the draft design is aligned again, animation paper used for tracing is fixed unstably, the animation paper is prone to displacing by external force, and drawing efficiency is reduced. The lower end of a main body of the tracing table is provided with a bottom plate, a first outer frame is installed outside the main body of the tracing table, a working panel is installed in the first outer frame, and the upper end of the first outer frame is provided with a movable magnetic fixing part.

The embodiment of the invention discloses a light filtering device, a camera and a light-emitting light source. The light filtering device comprises: an electrochromic device. The electrochromic device comprises an electrochromic layer, a first superposition layer and a first substrate which are arranged in a stacked mode. The electrochromic layer comprises a first conductive substrate, a color-changing material layer and a second conductive substrate which are sequentially stacked. According to the technical scheme, under the condition that the optical filter does not need to be replaced, thefiltered light intensity can be adjusted by applying corresponding voltage to the electrochromic device as required, so that the expenditure cost of a user and the loss of a mechanical structure of equipment needing light filtering are reduced, meanwhile, the electrochromic layer is protected; and the light filtering device can be fixed to the equipment needing light filtering more conveniently,and the structural stability of the light filtering device is enhanced.

The invention provides a portable support and imaging system for acquiring fundus images, and solves the problems that an optical and lighting system of an existing fundus camera is more complicated,larger in size, and not suitable for mobile operation. The portable support comprises a supporting plate, an optical lens and a telescopic adjustment assembly; the two ends of one side of the supporting plate are provided with clamping ports, and the other side of the supporting plate is connected with the optical lens through the telescopic adjustment assembly; the supporting plate is provided with a light transmission hole used for a camera light path of a smart phone to pass through and a lighting hole used for a flash lamp light path to pass through, and the light transmission hole is aligned with the optical lens; the telescopic adjustment assembly is used for adjusting the distance between the optical lens and the supporting plate; the imaging system comprises the smart phone and theportable support, and the smart phone is clamped in the clamping ports of the supporting plate.

The invention relates to a rotary three-dimensional planting device. The device comprises a vertical frame, a rotating shaft and a cylindrical planting frame, wherein the vertical frame is fixedly arranged on the ground, the rotating shaft is fixedly arranged on the vertical frame, and the cylindrical planting frame sleeves the rotating shaft. The device is characterized in that a plurality of planting grooves are distributed in the inner side and outer side of the planting frame respectively; a spiral pipeline for supplying water or a nutrient solution is arranged in the planting frame in the axial direction; capillary suction devices extending into each planting groove in the inner side and outer side of the planting frame are arranged on the spiral pipeline and used for sucking the water or the nutrient solution in the spiral pipeline into each planting groove in the inner side and outer side of the planting frame. Each capillary suction device comprises a strip-shaped flexible support and capillary strips, wherein the capillary strips are arranged on the support and made of a material with high hydroscopicity. The rotary three-dimensional planting device is high in spatial utilization rate, and the water or the nutrient solution reaches plant rhizomes easily.

The present invention provides a photovoltaic generation power output decrement rate measurement device and an estimation method thereof in a dust stratification condition. The device comprises a light generation device, a photometer, a photovoltaic cell panel, a maximum power tracking circuit and a maximum power tracking MCU, and can provide different illumination intensities and measure the maximum power of the photovoltaic cell panel so as to obtain a photovoltaic generation power output decrement rate in the dust stratification condition. The estimation method employs a harmonic neural network to establish a prediction model of the photovoltaic generation power output decrement rate and employs the model to perform estimation of the photovoltaic generation power output decrement rate in the dust stratification condition on the basis of construction of a lot of actual sample data of an aerosol optical depth aggregate value, a relative humidity aggregate value, the illumination intensities and the photovoltaic generation power output decrement rate. The photovoltaic generation power output decrement rate measurement device and the estimation method thereof can solve the problemsthat the photovoltaic cell panel dust stratification concentration is difficult to measure and the influence on the photovoltaic generation is difficult to perform quantitative analysis so as to facilitate improvement of the prediction precision of the photovoltaic generation.

The invention provides a photoreaction simulation device and method for degrading pollutants in a flood discharge atomized water body. The device comprises a double-layer glass reactor, an illumination system, an oxygen exposure sprayer, a magnetic stirrer and a constant-temperature water tank; the inlet end of the oxygen exposure sprayer is communicated with an air compressor and a reagent bottle, and the outlet end of the oxygen exposure sprayer is communicated with the double-layer glass reactor; and the oxygen exposure sprayer is used for performing water-gas mixing on compressed gas provided by the air compressor and initial reaction liquid input by the reagent bottle to form dissolved oxygen over-saturated reaction liquid, and then atomizing the dissolved oxygen over-saturated reaction liquid into small liquid drops to form a water-air micro-interface environment in the double-layer glass reactor. The device integrates the functions of oxygen exposure, atomization, photooxidation, water quality monitoring, constant temperature control and the like, can simulate the dissolved oxygen over-saturation and atomization illumination conditions in the flood discharge atomized water body, is simple and reliable in structure, and can provide technical support for research on photoreaction rules and migration and transformation behaviors of pollutant degradation in the flood discharge atomized water body.

The invention discloses a device for simulating illumination deterioration of food components. The device comprises a box body (1) provided with circulating ventilation equipment, and switchable LED lamp panels (5), wherein the box body (1) is collocated with heating equipment (7), refrigeration equipment (8), a humidifier (9), a dehumidifier, oxygen supply equipment (10), nitrogen supply equipment (11) and a sensor component; at least two LED lamp panels (5) are arranged in the box body (1) and each LED lamp panel (5) consists of a plurality of LED lamp beads (12); a numerical control panel (2) and a light intensity adjusting device (6) are arranged on the box body (1), and each LED lamp panel (5) is electrically connected with the light intensity adjusting device (6) respectively; and a heat insulation layer is arranged on the inner wall of the box body (1) at first, and then a light-reflecting layer is arranged on the inner wall of the box body (1). By use of the device, an illumination deterioration condition of the food components can be simply and efficiently simulated.

The invention discloses a simple device for photocatalytically treating organic waste gases. The device comprises a hermetic box body, wherein the box body is divided into three layers, and every two adjacent layers are divided by a photocatalytic material which is supported and fixed by slots formed in internal walls of the box body; the left and right sides of the box body are perforated, hollow quartz glass sleeves are mounted in a traversing manner, and ultraviolet lamp tubes are placed in the quartz glass sleeves; the rear side of the box body is a detachable cover plate, and an elastic sealing gasket is arranged between the cover plate and the box body and is sealed and fixed by a flange; gas inlets are formed in the lower end of the box body, and gas outlets are formed in the upper end of the box body; the upper part of the box body is provided with a thermometer and hygrometer mounting port; and peripheries of inner sides of the box body are attached with reflecting tin foil which is free of ultraviolet influence. According to the simple device for photocatalytically treating the organic waste gases, disclosed by the invention, the structure is simple, the mounting is convenient, and a photocatalytic reaction can be effectively carried out; and the device can be reused, so that the cost is low.

The invention relates to an alternating-current LED (light emitting diode) illumination device which comprises a heat radiation substrate, a plurality of LED chips arranged on the heat radiation substrate, a circuit layer, a packaging layer, an electrode exposing out of the packaging layer and a driving unit; the plurality of LED chips are combined into at least two groups of serial LED chip sets, and each group of LED chip set comprises at least two reversely parallel LED chips; the driving unit comprises a transformer and a bilaterial switch; one end of a first switch in the bilaterial switch is selectively connected with the output end of the transformer so that the driving unit ouputs driving voltages with different sizes to the plurality of LED chips; one end of a second switch in the bilateral switch is connected with the first switch, and the other end of the second switch is selectively connected with partial or all of the plurality of LED chips electrically.

The invention discloses a light guide assembly of a light-emitting semiconductor, and particularly relates to the technical field of light guide assemblies. The light guide assembly comprises a box body and light guide plates, two groups of light guide plates are fixedly connected in the box body, three groups of light reflecting plates are arranged at the top ends of the light guide plates, and reflection structures are arranged outside the light reflecting plates. By arranging reflecting surfaces, first reflecting sheets, second reflecting sheets and third reflecting sheets, the reflecting surfaces used for reflecting light rays are mounted outside the light reflecting plates, and the first reflecting sheets, the second reflecting sheets and the third reflecting sheets which can enhance the reflecting effect are fixed to the reflecting surfaces. Due to a condition that traditional reflecting plates can only reflect light at certain angles and light incident from other angles cannot be reflected, the reflecting sheets are mounted at the positions outside the light reflecting plates, the reflection effect of the light reflecting plates can be improved, the light can be uniformly reflected as much as possible, and the situation of reflection and light leakage of the light guide assembly is avoided.

The invention discloses a solar light-sensitive road lamp with a thermal siphon cooling system. The road lamp comprises a lamp post, an LED lamp assembly, a switch assembly, a light sensation assembly, a solar cell panel, a controller and a lithium battery assembly, wherein the LED lamp assembly, the switch assembly, the light sensation assembly, the solar cell panel, the controller and the lithium battery assembly are connected through a circuit; the LED lamp assembly, the controller, the solar cell panel and the lithium battery assembly are provided with a set of thermo siphon cooling systemwhich is capable of circularly cooling and used for circularly cooling the LED lamp assembly, the controller, the solar cell panel and the lithium battery assembly. According to the solar light-sensitive road lamp with the thermal siphon cooling system, the LED lamp assembly, the controller, the solar cell panel and the lithium battery assembly can be circularly cooled, a good cooling effect is achieved, the service life of the road lamp is prolonged, and the solar energy conversion rate of the solar cell panel is improved.

The invention belongs to the technical field of shaking incubators, in particular to a three-color light multi-section adjustable system. The three-color light multi-section adjustable system comprises an incubator, a cabinet door which is mounted on the incubator and is rotatably connected through a rotating shaft, and an observation window which is formed in the surface of the cabinet door and is used for observing the internal state of the incubator, a control panel is installed on the surface of the incubator, an LED illumination plate is arranged in the incubator, and a plurality of LED lamps are arranged on the surface of the LED illumination plate; the problem of culture difference at different positions is solved; the intensity of light sources around the illumination plate is adjusted; the illumination intensity around and in the middle is the same; the three light sources are ensured to be selectable or combinable, actual culture is met, multiple sections can be independentlyor simultaneously arranged, the use is convenient, the illumination intensity is adjustable, different culture requirements are met, a unique heat dissipation system is adopted, the temperature riseis low, the influence on culture is small, the actual problem can be effectively solved through the above points, and the actual requirements of users are met.

The invention provides hollow glass capable of achieving adjustment of illumination intensities. The hollow glass capable of achieving adjustment of the illumination intensities comprises a rectangular frame, a glass layer, a first vacuum pump, a second vacuum pump and a first mounting pipe; a cavity is formed in the rectangular frame, and a mounting groove is formed in the inner wall of the rectangular frame; the glass layer is installed in the mounting groove of the rectangular frame in a sealed manner, and a hollow cavity is formed in the glass layer; the first vacuum pump and the second vacuum pump are both fixedly installed on the inner wall of the bottom of the cavity, and an air inlet of the first vacuum pump and an air outlet of the second vacuum pump are both provided with electromagnetic valves; and the first mounting pipe is fixedly connected to an air outlet of the first vacuum pump. The hollow glass capable of achieving adjustment of the illumination intensities has the advantages that the requirement for different indoor illumination intensities is met, the dazzle light effect with different color light intensities is achieved, and the ornamental value is improved.

The invention discloses a guide rail assembled lamp module, which comprises a left guide rail (1) and a right guide rail (2), the left guide rail (1) and the right guide rail (2) are arranged parallel to each other, the left guide rail (1) is covered Multiple sliding sleeves A (3), the distance between adjacent sliding sleeves A (3) is equal, the right guide rail (2) is covered with multiple sliding sleeves B (4), the distance between adjacent sliding sleeves B (4) The spacing is equal, the sliding sleeve is a concave piece, the sliding sleeve is fastened on the top of the guide rail, the top of the sliding sleeve is provided with a locking screw (5), the locking screw (5) passes through the sliding sleeve and presses against the guide rail, the sliding sleeve A mounting plate (6) is fixed between the sleeve A (3) and the sliding sleeve B (4), and a lamp group (7) is disposed on the bottom of the mounting plate (6). The beneficial effects of the invention are: compact structure, fast replacement and maintenance of lamp groups, adjustable light intensity and simple manufacture.