121 results about "Light induced" patented technology

The invention provides a preparation method and application of a near-infrared light induction type silk fibroin nano preparation, and belongs to the technical field of medical preparations. And dropwise adding an ICG solution into the silk fibroin nano-particle solution, and then adding a ferric trichloride solution for reaction to obtain a precipitate, namely the near-infrared light induction type silk fibroin nano-preparation. The nano preparation prepared by the method disclosed by the invention can realize synergistic interaction of two treatment mechanisms, and the anti-tumor effect is remarkably improved.

The utility model discloses an oil acid value detection sensor, and belongs to the technical field of oil detection, and the oil acid value detection sensor comprises a base, a shell and an acid value detection assembly. The base is connected with external equipment; the shell is arranged on the surface of the base, a main channel, a detection channel and two shunt channels are arranged in the shell, the main channel is flush with the detection channel, the two ends of each shunt channel are communicated with the main channel and the detection channel respectively, and the sectional area of the main channel is larger than that of each shunt channel; the sectional area of the shunting channel is larger than that of the detection channel; the acid value detection assembly comprises a light emitting module, a light filtering membrane and a light sensing module, the light emitting module is arranged on the surface of the shell and located on one side of the detection channel, the light sensing module is arranged on the surface of the shell, located on the other side of the detection channel and aligned with the light source, and the light filtering membrane is arranged between the detection channel and the light sensing module. According to the invention, the accuracy of acid value detection can be improved.

To provide an optical sensor capable of performing highly accurate optical sensing of a scene.SOLUTION: The optical sensor includes a unit D1 including x blocks 11, for example, three (x = 3) blocks a, b, and c, each having a plurality of pixels 12 arranged in a first direction 11A in a plan view. The pixels 12 are arranged at a pixel pitch D1 in the first direction P1. The three blocks a, b, and c are arranged side by side in a second direction D1 orthogonal to the first direction D2, and are arranged to be shifted from each other by P1 / 3 in the first direction D1. For example, the light receiving elements 11A and 10b each including the units 10a corresponding to the number of stages of the TDI are arranged so as to partially overlap each other in the D1 in the first direction, and the optical sensing is performed using the blocks a and b in which the positional deviation of the pixels 12 is minimized. In addition, by increasing the size of each of the light receiving elements 10a and 10b in the second direction D2, inclination at the time of mounting, poor connection, and the like are suppressed.SELECTED DRAWING: Figure 10

A light detection module, a light detection method and a display device are provided. The light detection module includes N light sensing circuits, a control circuit, a capacitance integrating conversion circuit, and a processing circuit; N is a positive integer; wherein the N light sensing circuits respectively sense light signals of different colors to generate corresponding photocurrents; the control circuit is configured to control to provide photocurrents generated by the light sensing circuits to a capacitance integrating amplifying circuit in a time division manner, and to control a conversion parameter of the capacitance integrating amplifying circuit; the capacitance integrating conversion circuit is configured to perform integrating conversion on the photocurrent according to the conversion parameter and an integration time, to obtain an analog output voltage; the processing circuit is configured to obtain characteristics of the light signal according to the analog output voltage. In the present disclosure, the current integration method is adopted by the capacitance integration conversion circuit, and the photocurrent is converted according to the integration time, so that the number and area of the photodiodes connected in parallel in the light sensing circuit can be reduced by increasing the integration time, the space and cost are reduced.

The application relates to a light-sensing detection structure and a mobile lighting device. The light-sensing detection structure comprises a head part bin, a metal substrate arranged in the head part bin, a lens, a light-shielding bowl and a light sensor. The metal substrate, the lens and the light sensor are fixed in the head part bin, and the metal substrate is located between the lens and the light sensor. The light-shielding bowl is fixed on the metal substrate and located between the metal substrate and the lens. In the light-sensing detection structure, a light inlet hole is arranged outside the projection of the light-shielding bowl on the metal substrate along a light inlet direction, and the light sensor senses external brightness through the light inlet hole. The light-shielding bowl can resist outgoing light and prevent the outgoing light from escaping and entering the light inlet hole. The incident light can enter the light inlet hole through the gap outside the light-shielding bowl and be received and detected by the light sensor. Since the light-sensing detection structure does not have other obstacles to block the outgoing light, the light-sensing detection structure has the advantages of large light flux and high light emission rate in cooperation with the irradiation of the light emitter, can irradiate a complete light spot around, and has a better lighting effect.

The invention relates to the technical field of vehicle lighting, in particular to an electric vehicle photoinduction self-adaptive headlight system which comprises a deceleration state recognition module, an illumination trend judgment module, a charge state division module, a lighting power setting module and an output control execution module. According to the method, a deceleration state identification result is established by synchronously analyzing a current change direction and a brake signal state, a continuous sampling illuminance change rate is introduced to construct a trend judgment index, a low-illuminance approaching trend is judged in combination with an illumination decline intensity and a continuous period, and then the real-time charge state of a battery is collected and affiliated to a grading label; a target output power and an adjusting rhythm are set by matching a power regulation and control strategy, a linearly or non-linearly increasing lightening power sequence is set under different electric quantity conditions, a power control result is converted into a PWM instruction to be dynamically output to a headlight driving circuit, and self-adaptive adjustment of the brightness of the headlight of the electric vehicle under the conditions of illumination decreasing and electric quantity changing is achieved.

The invention discloses a photoacoustic stimulated Raman gas detection system and method based on hollow-core optical fiber self-seed injection enhancement, and belongs to the technical field of laser spectrum trace gas detection, the system comprises a light source and beam splitting module, a hollow-core optical fiber seed generation module, a light delay module and a short optical path power amplification module; the main laser beam is split into a first light beam and strong pump light after entering the beam splitter; in the hollow-core optical fiber seed generation module, a first light beam passes through a fifth reflecting mirror, a hollow-core optical fiber seed generation unit, a sixth reflecting mirror and an optical filter, and weak seed light is output; the strong pump light is synchronized with the weak seed light output from the optical filter after entering the optical delay module; in the short-optical-path power amplification module, weak seed light and strong pump light output by the light delay module are combined at a dichroscope and are strictly coaxial, and then are focused by a convex lens and enter a short-optical-path Raman frequency shifter. According to the invention, the oscillation starting threshold of the Raman frequency shifter is greatly reduced by utilizing seed light-induced stimulated radiation.

The utility model discloses an oil detection sensor, and belongs to the technical field of oil detection, and the oil detection sensor comprises a base, a shell and a detection assembly. The base is connected with external equipment; the shell is arranged on the surface of the base, a main channel, a detection channel and two shunt channels are arranged in the shell, the main channel is flush with the detection channel, the number of the shunt channels is two, the two ends of the two shunt channels are communicated with the main channel and the detection channel respectively, and a detection window is formed in the detection channel; the detection assembly comprises a dispersion module, a light sensing module and a moving module, the dispersion module is arranged in the shell, located on one side of the detection window and used for dispersing white light into spectrums with different wavelengths, the moving module is arranged in the shell and located on the other side of the detection window, and the light sensing module is arranged at the moving end of the moving module; and the detector is used for receiving spectrums emitted from the detection window. The oil composition detection efficiency can be improved, and the oil composition detection cost can be reduced.

The utility model provides a bus station, which comprises a photovoltaic array, an energy storage device, an intelligent sensing device and a lighting device, and is characterized in that the photovoltaic array is used for converting solar energy into electric energy and storing the electric energy in the energy storage device; the intelligent sensing device is used for controlling on-off and brightness of the lighting device, the intelligent sensing device comprises at least one of a light sensing switch and an infrared sensing switch, and the light sensing switch is used for controlling on-off of the lighting device according to surrounding illumination brightness; the infrared induction switch is used for inducting whether a person is near the bus station or not and adjusting the brightness of the lighting device according to the inducted result. In this way, the problems of high electrical load and resource waste of the bus station are solved, and the brightness of the lighting device can be intelligently adjusted, so that effective management and distribution of electric power are ensured, the problem of resource waste is effectively solved, and the resource utilization rate is improved.

The invention relates to the technical field of landscape lamp intelligent control, in particular to a landscape lamp intelligent control method and system based on light sensing and timing, and the method comprises the steps: obtaining a seasonal illumination intensity grade group, obtaining a current illumination value sequence, determining a current seasonal illumination intensity grade, carrying out the fault detection of a light sensing unit, and obtaining fault detection data; if fault data exists in the fault detection data, obtaining the state of the landscape lamp, and if non-fault data exists in the fault detection data, extracting a second illumination intensity grade and a fourth illumination intensity grade from the illumination intensity grades in the current season, and determining a target sunrise and sunset interval; landscape lamp intelligent control based on light induction and timing is completed based on the landscape lamp turn-on state or the landscape lamp turn-off state. The intelligent level of the landscape lamp can be improved.

The utility model relates to the technical field of advertising devices, in particular to an outdoor solar integrated advertising brightening device which comprises an installation frame, a lamplight area, a photovoltaic panel area, a controller and a storage battery are arranged on the installation frame, a lamp body is arranged in the lamplight area, the photovoltaic panel area is provided with a photovoltaic panel used for photovoltaic power generation, and the controller is connected with the controller. The photovoltaic panel is made of a black monocrystalline silicon wafer; the controller is a light induction controller and is electrically connected with the photovoltaic panel, the storage battery and the lamp body. The device is reasonable in structure, safe, reliable, energy-saving and environment-friendly, reduces stay wires, and meets the requirements of urban automatic quantification.

Disclosed in the present invention are a particle accommodating device, and a particle contactless processing apparatus and a light sensing structure thereof. The particle accommodating device is used for accommodating a liquid specimen that contains a plurality of particles. The accommodating device comprises a light sensing structure and a mating structure spaced apart from the light sensing structure. The light sensing structure comprises a substrate, an electrode layer and a photoelectric layer which are formed on the substrate, and an insulator formed on the photoelectric layer. The insulator comprises a charge-type track protruding from the photoelectric layer. The photoelectric layer is operable to generate a plurality of charges that are concentrated on the charge-type track, so that the charge density of the charge-type track is greater than that of the outer surface of the photoelectric layer, and thus the charge-type track can position at least one of the particles thereon by electrostatic adsorption. Thus, the particles are moved and positioned by means of the electrostatic adsorption, thereby achieving precise positioning of the particles.

The present application relates to a kind of fluorine-containing dihydronaphthalenone derivative and its preparation method and application, the fluorine-containing dihydronaphthalenone derivative obtained by visible light induced phosphine catalysis difluoroacetophenone derivative and the radical addition cyclization reaction of a variety of olefins in series compared with prior art, the preparation method of the present application has the advantages of high efficiency, short reaction time, high yield, mild condition etc., its structural motif is important in pharmaceutical and agrochemical products;The synthetic method for preparing fluorine-containing dihydronaphthalenone and its derivative of the present application is completely new, and the fluorine-containing dihydronaphthalenone compound synthesized is used in various organic synthesis reactions.

The application provides a display module and a display device. The display module comprises a display panel and a light sensing device. The display panel comprises a light sensing area, and a first type of transistor is arranged in the light sensing area and participates in the generation process of a light emitting driving electric signal. The light sensing device overlaps the light sensing area in a direction perpendicular to the plane where the display panel is located. A floating gap exists between the light sensing device and the display panel, and an insulating part is arranged in the floating gap. The design of arranging the insulating part in the floating gap is conducive to eliminating the tendency of static charge accumulation caused by the small gap. In addition, considering that the insulating part has good insulation performance, the insulating part can block the accumulation process of static charge in the floating gap, thereby avoiding the formation of a strong interference electric field between the display panel and the light sensing device, and further reducing the risk of interference of the first type of transistor from the source, thereby ensuring the display effect of the display panel.

The application relates to the technical field of sensors, in particular to a visual-tactile sensor based on a fiber array and a contact sensing method. The sensor comprises a base piece, an elastic body arranged on one side of the base piece, an image assembly arranged between the base piece and the elastic body, and a light sensing array. The sensor integrates the fiber array and the visualized elastic body in the same flexible structure, realizes high spatial resolution contact shape reconstruction, six-dimensional contact force estimation and micro sliding trend detection without significantly increasing the volume; the contact sensing method synchronously collects image information and fiber signals, extracts image spatial features and fiber time sequence features through a convolutional neural network, splices and fuses the features to output contact shape parameters, six-dimensional force / torque and sliding probability, and introduces a physical constraint loss function to impose monotonicity and consistency constraints on the prediction results, so that the contact sensing results conform to the physical law.

The novel blind guiding stick comprises a stick body, a cavity is formed in the stick body, the inner bottom wall of the cavity is fixedly connected with a storage battery, the inner wall of the cavity is fixedly connected with a fixing frame, the inner side wall of the fixing frame is fixedly connected with an STM single-chip microcomputer, a digital-to-analog converter and a Bluetooth module, and the STM single-chip microcomputer, the digital-to-analog converter and the Bluetooth module are connected with the storage battery. Three light induction lamps are fixedly connected to the outer surface of the stick body, two small ultrasonic radars are fixedly connected to the lower portion of the outer surface of the stick body, the two small ultrasonic radars are arranged in a fan shape, a positioning sleeve is fixedly connected to the top end of the stick body, and a sliding ring is slidably connected to the interior of the positioning sleeve; and two rubber plates are clamped in the sliding ring. According to the tactile feedback-based blind guide stick, the tactile feedback-based navigation function is realized, the blind can be better guided to go to a destination according to a route and accurately and clearly guided to turn left and right, and the guide effect of the tactile feedback-based blind guide stick is effectively improved.

A warp knitting machine and a jacquard device using optical communication, the jacquard device comprises a jacquard guide needle block, a first circuit board and a first optical signal receiver, a first slot is arranged on the base of the jacquard guide needle block, the first circuit board is arranged in the first slot, the power connection end of the first optical signal receiver is electrically connected with the first circuit board, and the first light sensing part of the first optical signal receiver is arranged towards the lower side of the first slot. In the utility model, the first optical signal receiver is arranged to receive the first optical signal, so that the copper bar and the needle transmission pattern process data are replaced, better electromagnetic interference resistance is achieved, and the service life of the jacquard device is prolonged.

The utility model discloses a photoelectric gradienter in the technical field of gradienters, which comprises a light source, a light polarization structure arranged right in front of the light source, a light reflection structure arranged right in front of the light polarization structure, and a condensation sensing structure arranged right below the light polarization structure. A light refraction structure is arranged under the light reflection structure. A light source enables a light beam to directly pass through the light polarization structure, the path of a light path is changed by 90 degrees after the light beam passes through the light reflection structure, the light beam enters the light refraction structure, the path of the light path is changed by 90 degrees after the light beam is refracted and reflected in the light refraction structure, the light beam passes through the light reflection structure again, and the light polarization direction is changed after the light beam passes through the light separation structure again. Therefore, after entering the light separation structure, the light beam is reflected and is sensed by the condensation sensing structure. When the gradienter inclines by a certain angle, the positions where the light beams are focused on the light-focusing sensing structure are different, namely corresponding voltage changes are generated. The optical path is simple, the structure is stable and the measurement precision is high.

The utility model discloses a mangrove forest monitoring camera, which comprises a casing, a camera, a sensor module, an infrared lamp, a signal transmission module, a control module and a power supply. When the sensor module senses darkening of ambient light, the control module controls the infrared lamp to be started to emit infrared light, and when people or animals within a certain range are sensed, the control module controls the camera to be started to shoot; when the sensor module senses that ambient light is sufficient, the infrared lamp is kept in an off state, and when people or animals cannot be sensed, the camera is kept in an off state. According to the mangrove forest monitoring camera, work of the camera and the infrared lamp is intelligently controlled through the sensor module and the control module, the mangrove forest monitoring camera is turned on to work only when needed, the camera is kept in a power-off state in other time, power consumption can be effectively reduced, electricity is saved, meanwhile, the frequency of manual battery replacement is reduced, and therefore the labor cost is reduced.

The utility model relates to the technical field of television heat dissipation, and disclose a television backplate structure that good heat dissipation, including television backplate structure main part structure still include: rear shell hanger, air cooling radiator, temperature light inductive device, television backplate structure main part structure upside fixedly connected with rear shell hanger, television backplate structure main part structure downside fixedly installed with air cooling radiator, television backplate structure main part structure downside fixedly connected with temperature light inductive device, air cooling radiator contains installation bottom plate, integrated heat dissipation fin structure is fixedly installed on the installation bottom plate upside, integrated heat dissipation fin structure upside symmetry is installed with fan drive structure, the fan drive structure center symmetry is installed with heat dissipation fan blade, can avoid the performance of television of high temperature damage, and the temperature control alarm light temperature control alarm light sends visual alarm, and the user can through the hint of this device timely intervention and avoid damaging television.

This invention relates to the field of optical manipulation technology, and more specifically, to a method for optical manipulation based on a dimer. The purpose of this invention is to solve the problem of insufficient lateral optical force control. The dimer is constructed by assembling two isotropic particles, and is placed on a sample stage and completely immersed in a homogeneous medium. The optical manipulation method is as follows: a circularly polarized Gaussian beam is shaped into an incident light with an elliptical cross-section. The incident light is guided to obliquely illuminate the dimer and project an elliptical spot with a major axis and a minor axis onto the substrate of the sample stage. The angle of inclination formed by the incident light and the normal to the substrate of the sample stage is ∈ (0°, 90°), with the major axis perpendicular to the propagation direction of the incident light and the axis of the dimer parallel to the minor axis, so that the incident light induces a lateral optical force on the dimer, the direction of which is parallel to the major axis. By adjusting the rotation direction of the circularly polarized Gaussian beam and the angle of inclination, optical manipulation of the dimer's motion direction and velocity can be achieved.

The invention provides a method for catalyzing free radical-nucleophilic addition halogenation-functionalization of alkene through a visible light induced iron-based material, and belongs to the technical field of organic chemistry. According to the method, olefin is taken as a reaction substrate, inorganic halide MXn is taken as a halogen source, in the presence of a nucleophilic reagent Nu, a halogen functionalization reaction of olefin is efficiently and highly selectively realized through co-catalysis of an iron-based material and visible light, C-X (X = Cl, Br) and C-Y (Y = X, O, S) are constructed at the same time, and a halogen-functionalization product is prepared. According to the method, halide ions are used for replacing traditional halogen simple substances, and olefin which is low in price and easy to obtain is directly converted into the halide which contains a plurality of functional groups and has a high additional value and subsequent derivation potential through free radical-nucleophilic addition under a mild condition. The method has the advantages of environment friendliness, high selectivity, low energy consumption and the like, and has important theoretical significance and practical application value.

A tunable and reconfigurable transparent electrode for a light valve includes a semi-insulating material substrate having an electrically insulating dark region and a shallow electrically conductive region. The light valve further has a transparent and conductive contact supported by the semi-insulating material substrate, wherein charged carriers are generated optically in response to incident light passing through the transparent and conductive contact and into the semi-insulating material substrate.

The present application relates to the technical field of lighting fixtures, and specifically relates to a light-sensing sensor, a lighting fixture and a use method. The light-sensing sensor comprises a condensing lens, a light sensor and a housing; the housing is provided with an accommodating space; the housing is provided with a through hole; the condensing lens and the light sensor are each fixedly arranged within the accommodating space of the housing; a portion of the condensing lens is provided within the through hole; the condensing lens and the light sensor are arranged corresponding to each other; the condensing lens is used for collecting light outside the housing, and the light sensor is used for sensing a change in the light collected by the condensing lens. The present application provides the light-sensing sensor, the lighting fixture and the use method to solve the problem of existing sensors that a light-collecting element and a sensing element are respectively fixed by means of two components during a design process, and during later assembly and use, an installation error between the two leads to inaccurate positioning between the light-collecting element and the sensing element, which affects the use performance of the sensors and results in poor experience.

A Lab-On-Chip (LOC) system includes a multi-chamber tray having at least two chambers separated by a barrier, one or more light chambers each having a top portion and a bottom portion, and configured to be coupled to each chamber of the multi-chamber tray and further configured to allow selective light from the top portion of the light chamber, while blocking surrounding light, and one or more light sources, each coupled to a top portion of a corresponding one or more light chamber, wherein each of the one or more light sources is selectively configured to provide light at a predetermined wavelength, a predetermined frequency, and a predetermined intensity.

The invention provides a Raman amplifier reflected light processing method and system based on weak etching optical fibers, and relates to the technical field of passive optical networks. The method comprises the steps that pump light parameters and surface roughness parameters of weak etching optical fibers are obtained, the pump light parameters comprise pump light power, a prediction reflection domain is generated through a Rayleigh back scattering model, and the prediction reflection domain comprises predicted reflection spectrum peak displacement and a diffusion area; constructing a multi-layer spectrum grid module for the prediction reflection domain, generating a spectrum coordinate unit, and mapping the prediction reflection domain into a coordinate unit mark; and based on the coordinate unit marks, performing non-overlapping comparison of the overall size of the reflected light and the marks to generate an overall verification result, and when there is no fitting conflict, outputting a final reflected light intensity distribution. The dynamic suppression of the reflected light induced noise is realized under the condition of not depending on additional hardware components, and the system has the advantages of system flexibility and cost efficiency.

The present application belongs to the field of measurement and metrology science and technology, and relates to a full-automatic calibrating device and method for efflux cup type viscometer, wherein, the embedded computer is electrically connected with the stopper rod simulation assembly, the fixed frame and constant temperature assembly, the finger pressure simulation assembly and the light response assembly, the stopper rod simulation assembly is located above the fixed frame and constant temperature assembly, the fixed frame and constant temperature assembly is located above the light response assembly, the finger pressure simulation assembly is located between the fixed frame and constant temperature assembly and the light response assembly, the efflux cup type viscometer is fixedly installed in the fixed frame and constant temperature assembly, the stopper rod simulation assembly automatically blocks and opens the efflux hole of the efflux cup type viscometer, and the finger pressure simulation assembly automatically blocks and opens the efflux hole of the finger pressure type viscometer; the light response assembly is fixedly installed with the detection pool, and the light source module and the detection module are symmetrically fixedly installed on both sides of the detection pool. The present application reduces the volume of the constant temperature device in the prior art, and the whole calibrating process is fully automatic.

The invention relates to a photovoltaic module reliability test method and a photovoltaic module reliability test system, reverse current is introduced into a photovoltaic module, and the reverse current is larger than or equal to one time of short-circuit current of the photovoltaic module, so that diffusion of copper ions in silicon in a copper electroplating photovoltaic module can be effectively accelerated, and the reliability of the photovoltaic module is improved. The simulation of the copper ion diffusion condition of the copper electroplating photovoltaic module in the outdoor environment is accelerated, the diffusion of copper ions in silicon can be effectively catalyzed by introducing a reverse current greater than or equal to 2 hours, at the moment, the photovoltaic module is placed in a constant temperature room for constant temperature, and the reliability parameter of the photovoltaic module after constant temperature is measured. A control group is formed between the reliability parameters before the test and the reliability parameters before the test, and can be used for reliability evaluation of the photovoltaic module. The process can be realized in environments such as laboratories and the like, the photovoltaic module does not need to be transported, mounted and dismounted outdoors, and the test time (greater than or equal to 2 hours) is far shorter than the time required by a traditional outdoor light induced degradation (LID) test (greater than 1 month).

The invention belongs to the technical field of touch control switches, and particularly relates to a light-sensitive touch control switch, a touch control method and electronic equipment, the light-sensitive touch control switch is arranged on a touch control area of the electronic equipment, and the light-sensitive touch control switch comprises a light emitter arranged on one side of the touch control area and used for emitting detection light; the light receiver is arranged on the other side of the touch area and used for receiving the detection light rays emitted by the light emitter and generating corresponding receiving signals; the controller is at least electrically connected with the light receiver and is used for executing a corresponding preset touch action according to a receiving signal of the light receiver; by adopting a light detection switching mode, the switch can be triggered only when a solid object passes through and cuts off a light beam of the solid object, and interference signals cannot trigger the switch no matter in humid air, water stains on hands, dust accumulation or complex electromagnetic interference on a working site, so that the switch is not influenced. In addition, normal holding, wiping and cleaning or speaking close to the microphone of the user cannot be misjudged as an operation instruction.

An image sensor package with low light-sensing noise has a chip body having a photosensitive area and non-sensitive area. The photosensitive area includes a photosensitive layer having a plurality of photosensitive units. A color filter is disposed on the photosensitive layer and has a plurality of filter units corresponding to the photosensitive units and a black matrix. A black adhesive layer is disposed on the non-sensitive area for mounting a glass cover. A gap is kept between the glass cover and the first surface of the chip body. When an incident light passes through the glass cover and emits to the photosensitive area, the black matrix absorbs the light traveling through the filter unit toward the photosensitive units adjacent to the filter unit. Furthermore, a light emitting to the non-sensitive area can be absorbed by the black adhesive layer. Thus, a light-sensing noise of the chip can be effectively decreased.