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141results about How to "Guaranteed light intensity" patented technology

Backlight module

The invention provides a backlight module. The backlight module comprises a back plate, a light guide plate arranged in the back plate, and a plurality of elastic bodies mounted on the back plate, wherein the back plate includes a bottom plate, and a plurality of side plates vertically connected at the periphery of the bottom plate; the light guide plate includes a bottom surface facing the bottom plate, a top surface away from the bottom plate, and a plurality of side surfaces connected between the bottom surface and the top surface; the plurality of elastic bodies are respectively mounted on the three side plates of the back plate, and butt against the three side surfaces of the light guide plate; and the contact surface between the elastic bodies and the side surfaces of the light guide plate is an arc-shaped surface or a spherical surface. The backlight module provided by the invention can ensure the mechanical strength of the light guide plate by fixing the light guide plate in the back plate through the elastic bodies between the side plates of the back plate and the light guide plate without processing the periphery of the light guide plate by grooving, embossing and so on, and can supply a certain buffer space to prevent extrusion deformation of the light guide plate due to thermal expansion in the prior art, thereby ensuring the luminous intensity and uniformity and reducing the cost.
Owner:SHENZHEN CHINA STAR OPTOELECTRONICS TECH CO LTD

Active automobile headlamp capable of improving visibility in rain and snow

InactiveCN102826038AReduce direct reflectionImprove securityOptical signallingHeadlampVisibility
The invention discloses an active automobile headlamp capable of improving visibility in rain and snow, which comprises a lampshade. The active automobile headlamp capable of improving the visibility in rain and snow is characterized in that the inside of the lampshade is provided with an LED (light emitting diode) lamp array consisting of a plurality of LEDs; the lampshade above the LED lamp array is provided with a camera; the bidirectional signal of the camera is connected with a CPU (Central Processing Unit) evaluation unit; the output signal of the CPU evaluation unit is connected with an LED lamp control unit; and the output of the LED lamp control unit is connected with each LED lamp in the LED lamp array.
Owner:FOURTH MILITARY MEDICAL UNIVERSITY

Dimming desk lamp and automatic dimming method thereof

The invention discloses a dimming desk lamp and an automatic dimming method thereof, and relates to an automatic dimming lamp fitting and a method for automatically regulating the illumination light intensity of the lamp fitting. The dimming desk lamp is provided with a base, a vertical post, an illumination device, a light intensity sensor, a keyboard, a singlechip and a driver; the lower end of the vertical post is arranged at the rear part of the base; the upper end of the vertical post is provided with a swing rod capable of swinging horizontally, and the front end of the swing rod is provided with the illumination device; the upper surface at the front part of the base is provided with an A light intensity sensor and a B light intensity sensor; three input ports of the singlechip are respectively connected with the keyboard, the A light intensity sensor and the B light intensity sensor; and according to the light intensity signals of the A light intensity sensor and the B light intensity sensor, the singlechip automatically calculates the immediate light intensity of the reading surface for users, controls the electricity energy transmitted to the illumination device by the driver by combining the light intensity set value of the reading surface of the users provided by the keyboard, and maintains the light intensity of the reading surface of the users to be at the set level. According to the invention, the position of the illumination device can be dimmed, and the light intensity of the reading surface can be stabilized automatically.
Owner:TSANN KUEN ZHANGZHOU ENTERPRISE CO LTD

Correction method for self-aligned process window of dark field defect detection equipment

ActiveCN105931977AAvoid Self-Alignment FailuresParameter adjustmentSemiconductor/solid-state device testing/measurementPhysicsProcess Window Index
The invention provides a correction method for a self-aligned process window of dark field defect detection equipment. The method comprises the following steps of: (S1) providing a test wafer which comprises test areas with different functional film thicknesses and areas; (S2) testing different test areas and collecting different reflected light signal intensities; (S3) fitting the reflected light signal intensities Y to obtain a fitting formula Y=alphax<n>+betay<n>+gamma; and (S4) calculating the required self-aligned light intensity value by combining the thicknesses and the areas of the functional films in actual technology production according to the fitting formula to achieve parameter adjustment on the dark field defect detection equipment. The fitting formula is obtained through a multi-observation point test on the test areas with different functional film thicknesses and areas, and the required self-aligned light intensity value can be calculated, so that the self-alignment failure caused by over-dark or over-bright functional films is effectively avoided; parameters of the dark field defect detection equipment can be adjusted in real time; and the condition that the light intensity value of the dark field defect detection equipment meets an effective range of self-alignment correction is ensured.
Owner:SHANGHAI HUALI MICROELECTRONICS CORP

Intelligent football training system

The invention discloses an intelligent football training system. The system comprises a football training ground frame, a data collection controller, external equipment and a single chip microcomputer controller. A fixed plate is fixedly installed at the top of the football training ground frame; a protective net is fixedly installed at the bottom of the fixed plate; a recovery groove is formed in the bottom of the protective net; the data collection controller is composed of a heart rate sensor, a speed sensor and an acceleration sensor; the input end of the external equipment is connected with the output end of a wireless radio frequency receiving and transmitting module through the Internet; the input end of the single chip microcomputer controller is electrically connected with the output end of a light intensity sensor, the output end of a served ball counting device and the output end of a power supply module; the output end of the single chip microcomputer controller is electrically connected with the input ends of a football launcher, a loudspeaker, a camera, first illuminating lamps, second illuminating lamps, third illuminating lamps and LED flickering lamps. The intelligent degree is high, and body motion parameters are combined with training.
Owner:HUNAN UNIV OF SCI & ENG

Sap expansion bead air-permeable and water-blocking plate used for lighting and sheltering rain and manufacturing method thereof

ActiveCN107938952ATake advantage ofSave yourself the hassle of artificial maskingRoof covering using slabs/sheetsEconomic benefitsEngineering
The invention discloses a sap expansion bead air-permeable water-blocking plate used for lighting and sheltering rain and a manufacturing method thereof. The sap expansion bead air-permeable water-blocking plate is stacked by a plurality of layers of air-permeable water blocking plates, and each layer of the air-permeable water blocking plates comprises transparent grilles, sap beads, and two perforated cover plates; and each square grille hole of the transparent grilles is provided with a sap bead in a sealing mode. According to the sap expansion bead air-permeable water-blocking plate used for lighting and sheltering rain, an air-permeable water passage can be adaptively switched according to actual weather conditions, trouble of manual shielding can be eliminated, traditional lighting plates are improved, and larger market space is possessed. The sap expansion bead air-permeable water-blocking plate is applied to projects need to be air-permeable and sheltered from rain such as a sun room and a rain shelter, an adaptive method is adopted, air and lights are permitted in sunny weather, and water and rain are prevented in rainy weather; and the light intensity is ensured while thedrying is ensured, natural lights are fully utilized, manpower and electricity costs are saved, the cost is reduced, and greater economic benefits are produced.
Owner:YANGZHOU UNIV

Light guide structure, light-emitting assembly, light-emitting device and vehicle

The invention relates to a light guide structure, a light-emitting assembly, a light-emitting device and a vehicle. The light guide structure comprises a structure body, a light receiving surface, a light splitting surface, a deflection reflection surface and a light emitting surface. Light emitted by a light source outside the structure body of the light guide structure is collimated by the lightreceiving surface to form collimated light, and the collimated light is transmitted to the light splitting surface in the structure body in the approximately parallel direction, is received and reflected by a main light splitting surface to form main split light, and is received and reflected by a side light splitting surface to form side split light; the side split light is received by the deflection reflection surface on the transmission path and is further reflected to form side emission light; and the side emission light and the main split light penetrate through the light emitting surface and emit light to the outside of the structure body to form illumination. After being collimated and guided by the light guide structure, the light can be completely emitted from the preset light emitting surface to form a shape, the light cannot be freely scattered outwards, a light emitting area of 30-40 mm can be uniformly illuminated by utilizing a single light source, and the energy of thelight source can be more effectively utilized.
Owner:HASCO VISION TECHNOLOGY CO LTD

Sensor lamp control method

Provided is a sensor lamp control method. When power is on, a sensor lamp senses ambient light intensity real time, if the ambient light intensity is lower than 100 Lux, the lamp is turned on and maintains lowest illumination, and the brightness of the lowest illumination is 10% to 20% of the complete-turning-on brightness of the lamp; when the presence of people or vehicles is sensed, the brightness of the lamp is raised to the complete-turning-on brightness, and when the people and the vehicles pass by, the brightness of the lamp is lowered to the lowest illumination and the lowest illumination is maintained; when the lamp is on and the presence of the people or the vehicles is sensed at the same time, the lamp is turned on in a two-stage manner, i.e., when the people and the vehicles pass by, the brightness of the lamp is lowered to the lowest illumination and the lowest illumination is maintained; and when the lamp maintains the lowest illumination, the lamp determines whether to carry out complete turning-off according to the real-time sensed ambient light intensity, if the ambient light intensity is equal to or more than 100 Lux, then the lowest illumination is cancelled and the lamp is completely turned off, and if the ambient light intensity is lower than 100 Lux, then the lamp maintains the lowest illumination, if the ambient light intensity is equal to or more than 100 Lux, then the lamp is not turned on. Compared to the prior art, the sensor lamp control method has the following advantages: it is not easy for people to encounter with such untoward effects as dazzling, or temporary blindness, or eye aches and the like, the energy consumption is relatively low, and the method can be used on occasions requiring certain illumination intensity to be ensured.
Owner:NINGBO LEXING INDUCTOR ELECTRONIC CO LTD

Light source irradiation device for plant cultivation

The invention discloses a light source irradiation device for plant cultivation, comprising a doughnut shape-like LED assembled light source and an octagonal irradiation zone arranged under the doughnut shape-like LED assembled light source. The doughnut shape-like LED assembled light source comprises a light source panel, multiple layers of square LED light rings are arranged on the light source panel, and each layer of square LED light ring is composed of four LED light bars. The multiple layers of square LED light rings are connected with a drive circuit, and the boundary of the octagonal irradiation zone is located within the boundary of the vertical projection zone of the LED light bars in the outermost layer. The luminescent spectrum of the light source irradiation device can well meet the spectral range needed by the plants for growth, and the illumination intensity is stronger than that of the light sources generally used in greenhouses and is completely up to the illumination intensity required by indeterminate plants for growth. At the same time, by adopting the edge supplementary lighting intense design and inner layer uniform design, the light source irradiation device can well improve the illumination uniformity on the premise of ensuring the illumination intensity of the light source, and thus can be applied to the scientific experiments and production practices of plant illumination.
Owner:LANZHOU UNIVERSITY

Novel anti-collision lamp light source for helicopter

The invention discloses a novel anti-collision lamp light source for a helicopter. The novel anti-collision lamp light source comprises a cooling base, an electric coupling, a lampshade and a plurality of light emitting circuit boards. The cooling base is of an integrated structure. A circuit board installation base is arranged on the periphery of the upper portion of the cooling base. The light emitting circuit boards are fixed to the circuit board installation base. A slotted hole is formed in the center of the cooling base. The electric coupling is fixed into the slotted hole. LED light emitting chips fixed through reflow soldering are distributed on the surfaces of the light emitting circuit boards. The novel anti-collision lamp light source is compact in structure, 360-degree light emitting can be achieved, the light emitting effect is good, and the light emitting circuit boards work at the same time so that light intensity can be guaranteed. The cooling base is of the integrated structure, heat generated when the LED light emitting chips operate can be effectively conducted out, and work stability is improved. The electric coupling is installed in the cooling base in a penetrating mode, the structure is ingenious and reliable, heat generated by the electric coupling can also be transferred to the cooling base, and the light source is more stable to work.
Owner:Anhui Huaxia Photoelectrics Co Ltd

Method for detecting cladding quality based on coaxial powder feeding equipment of laser displacement sensor

ActiveCN111060026AIncrease light densityClear and stable high-precision contourAdditive manufacturing apparatusUsing optical meansControl engineeringProcess engineering
The invention relates to a method for detecting cladding quality based on coaxial powder feeding equipment of a laser displacement sensor, which comprises the steps that firstly, a servo motor moves according to a motion trail specified by a processing program; secondly, a controller compares the machine tool actual coordinate position, which is fed back by a servo motor encoder, of a cladding head relative to a cladding workpiece with the workpiece signal position monitored by the laser displacement sensor, whether the position deviation of the machine tool actual coordinate position and theworkpiece signal position exceeds a preset deviation range of signals collected by the laser displacement sensor or not is judged, and then signal processing is automatically conducted; meanwhile, thecontroller compares the machine tool actual coordinate position, which is fed back by the servo motor encoder, of the cladding head relative to the cladding workpiece with the pre-planned instructionposition of the servo motor, judges whether the position deviation of the machine tool actual coordinate position and the pre-planned instruction position exceeds the preset automatic adjustment deviation range of the servo motor or not, and then automatically adjusts the servo motor. The detection method disclosed by the invention can realize ultra-stable high-precision measurement on all workpieces which are difficult to detect.
Owner:天津镭明激光科技有限公司
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