275 results about "Visible range" patented technology

The invention relates to the technical field of screen control, in particular to a computer screen control method and system. The method comprises the following steps: collecting a computer lens image to carry out scene modeling, generating a three-dimensional usage scene model, carrying out scene privacy evaluation and generating a privacy degree parameter, analyzing a peep-proof demand according to the privacy degree parameter, generating a screen peep-proof demand, carrying out portrait positioning when peep-proof is needed, generating a portrait positioning set, and carrying out image processing according to the portrait positioning set. And calculating a virtual contact distance based on the portrait positioning set, performing contact sight simulation to obtain a figure sight track, analyzing a screen visible range according to the sight track and the virtual contact distance, and dynamically adjusting the screen brightness to realize the peep-proof control method. According to the invention, a safer computer screen control method is realized.

The invention relates to a security element (100) comprising a motif layer (10) and an effect layer, particularly for documents (200) such as valuables, identity documents, security papers, or card-shaped data carriers. The effect layer (20) is arranged above the motif layer (10) and exhibits an optical effect when viewed under visible light. The effect layer (20) is transparent to infrared light, and the motif layer (10) is reflective or absorbent to infrared light, such that the motif layer (10) becomes visible through the effect layer (20) when viewed under infrared light. The motif layer (10) is configured to represent at least one first motif (30). The invention further relates to a document (200) with a corresponding security element (100) and a method (300) for producing such a document (100).

The invention provides a sound source imaging calculation method and system, electronic equipment, a storage medium and a computer program product, and the method comprises the steps: carrying out the preprocessing of obtained audio data, so as to obtain a center frequency in a scanning frequency range, and the audio data are collected through a microphone array; sound intensity grids are divided within the visible range of the video collection device. And determining an Euclidean distance matrix and an array steering vector from the microphone array to the sound intensity grid. And obtaining an output power spectrum matrix according to the array steering vector and the cross-spectrum matrix. And coloring the sound intensity grids to obtain a thermodynamic diagram. The sound source imaging method is optimized and innovated by utilizing the parallel computing capability of the CUDA technology, the accurate positioning of the sound source is realized, the processing speed and the positioning precision of the CUDA architecture model are improved, and powerful technical support is provided for the development of the sound source imaging field.

A radiative cooling device that is in a state in which a radiative surface is colored is provided. A radiative cooling device CP includes an infrared radiative layer A that radiates infrared light IR from a radiative surface H, a light reflective layer B that is disposed on the side opposite to the radiative surface H with respect to the infrared radiative layer A, and a color portion X. The infrared radiative layer A is a resin material layer J that has a thickness adjusted so as to emit a heat radiation energy greater than an absorbed solar energy in a wavelength range from 8 μm to 14 μm, and the color portion X contains a colorant that absorbs light in the visible range.

The invention relates to the technical field of computers, in particular to a source code hierarchical positioning method, electronic equipment and a medium. Determining a target hierarchy corresponding to a target code line, a code range corresponding to the target hierarchy and code ranges of all target sub-hierarchies based on the code line hierarchical structure information of the code file; and displaying the code lines belonging to the target hierarchy, the code range corresponding to the target hierarchy and the code range of the target sub-hierarchy in the code lines in the visual range by adopting different display identifiers. According to the invention, code levels concerned by a user can be quickly and accurately positioned.

A windshield having an engine edge, a roof edge, and two side edges running between them, includes an outer pane made of glass with an outer surface and an interior-side surface and an inner pane made of glass with an outer surface and an interior-side surface, wherein the interior-side surface of the outer pane and the outer surface of the inner pane are connected to one another via a thermoplastic intermediate layer, and the windshield includes a first partial region, in which a transparent cover print including enamel is applied to the outer pane and / or inner pane, the first partial region is arranged along the engine edge and extends from the engine edge in the direction of the roof edge of the windshield, and the windshield has a transmission of at least 70% in the visible range of the light spectrum in the first partial region, at least in portions.

The invention pertains to system and method for profiling, modeling and monitoring temperature and heat flow in a meat piece or food item in a cooking by placing the item on a flat surface of a cooking device in a sufficiently visible way for monitoring with an optical head, collecting data with suitable sensors and mirrors, such as IR sensor, visible range sensor, high resolution Lidar sensor, laser or LED device with different color options that has a collimated beam, scanning with a scanning mechanism, measuring temperature of bottom and upper surfaces of the item, modeling the item with a 3D as horizontally oriented equithermal slices and perpendicularly non-equithermal relative each other, and calculating temperature of these slices, particularly Tcore of a central slice.

A visibly transparent sheet (200) and a coating for a transparent substrate (201), the coating comprising: - a first film comprising: a first stacked layer mirror film configured to reflect light in an infrared range of light and to transmit light in a visible range of light, or a first transparent conductive oxide film, - a set of structures (112) arranged in a pattern on the first film, separated by recesses (111) comprising one or more empty first unit cells (111a), each structure comprising one or more second unit cells (112a), the first and second unit cells having identical shapes and sizes, - wherein each second unit cell comprises a second layer structure comprising: a second stacked layer structure comprising at least a third dielectric layer, a fourth dielectric layer, and a second metal layer arranged between the third and fourth dielectric layers, or a second transparent conductive oxide layer. An active coating incorporating switchable materials is also proposed, enabling dynamic control over various properties. This coating facilitates the modulation of infrared transmission, reflection, or absorption of solar light in response to changing ambient conditions.

The invention discloses a mechanical arm trolley positioning method. The method comprises the steps that (1) the transformation relation between all planned target channels and patient tracers is obtained; (2) the patient tracer is set as a relative stationary point, the mechanical arm trolley is set as a relative action point, and the relative distance between the patient tracer and the mechanical arm trolley is adjusted according to the set step length; (3) the transformation relation between each target channel and the adjusted mechanical arm base is calculated; (4) through inverse kinematics of the mechanical arm, judging whether each target channel can be reached or not, if so, turning to the step (5), otherwise, returning to the step (2); (5) judging whether a tail end tracer is located in a visible range of the optical tracking system or not when the mechanical arm executes the reachable position of each target channel; if so, obtaining a target position; otherwise, returning to the step (2). The positioning of the mechanical arm trolley can be accurately completed, the mechanical arm trolley does not need to be frequently moved, the position of the optical tracking system does not need to be adjusted, and the execution precision is guaranteed.

The invention discloses a near-infrared contact lens for eye movement tracking and a preparation method, the contact lens comprises a contact lens layer, a processing circuit module, a wireless power supply coil, a near-infrared LED lamp and a photoelectric detector, the photoelectric detector is adjacent to the near-infrared LED lamp, the near-infrared LED lamp is used for emitting near-infrared light to the fundus, and the processing circuit module is used for processing the near-infrared light. The photoelectric detector is used for receiving near-infrared light reflected back from the fundus and detecting the movement direction and angle of the eyeball in real time by comparing irradiation values of the photoelectric detector, and the processing circuit module is connected with the photoelectric detector and used for comparing the difference of the irradiation values of the near-infrared light received by the photoelectric detector and determining the movement direction and angle of the eyeball. And the wireless power supply coil is directly connected with the processing circuit module and is used for wirelessly supplying power to the processing circuit module and the near-infrared LED lamp. According to the near-infrared contact lens, infrared waves generated by the near-infrared LED lamp avoid the visible range of human eyes, and meanwhile, all modules of the near-infrared contact lens are distributed around the contact lens, so that the daily life of a user is not influenced.

The invention relates to the technical field of three-dimensional model analysis, and discloses a holographic projection-based three-dimensional scene display method, which comprises the following steps: preparing quantum dots through a chemical solution method or a physical vapor deposition method, selecting a quantum dot material with good stability, preparing the quantum dots with uniform size and light-emitting wavelength in a visible light range, and displaying the quantum dots in a holographic projection mode. The light propagation model is corrected according to the light emitting characteristics of the quantum dots, hologram data corresponding to the three-dimensional cube model are calculated, and projection is carried out according to the hologram data; based on a projection image generated after correction of the light propagation model, acquiring quality data of the projection image in real time through an image sensor, analyzing the data according to a preset algorithm, and judging whether the projection system needs to be adjusted and different signals need to be generated; and based on the obtained color optimization signal and the clear optimization signal, obtaining characteristic data of the corresponding quantum dots, analyzing and adjusting the material characteristics and the application mode of the quantum dots, and enhancing the display effect of the projected image.

Provided are display device and method of fabricating the same. A display device comprises a display panel having a first surface and a second surface; a light-blocking layer having a third surface and a fourth surface, the fourth surface facing the first surface of the display panel, the light-blocking layer comprising a recess portion on the third surface and a non-recess portion around the recess portion, and containing a material that selectively blocks light; a light-transmitting layer located on the light-blocking layer; a recess cover disposed between the recess portion and the light-transmitting layer; and an infrared sensor located on the light-transmitting layer and the recess cover, wherein the light-blocking layer blocks light having wavelengths in visible range and transmits light having wavelengths in infrared range.

The invention belongs to the technical field of monitoring equipment visualization, and relates to a target monitoring method based on visible range analysis of mass monitoring equipment in a three-dimensional scene, which comprises the following steps: acquiring a three-dimensional map and position information of each monitoring equipment; mapping the monitoring equipment to a three-dimensional map according to the position information of the monitoring equipment; relevant parameters of each monitoring device are collected, a visual area of each monitoring device is drawn, and a view blind area of each monitoring device is constructed; each monitored visual area and each visual blind area are marked; target point position information is obtained, visual information of a user is determined, and a dragging track of the user on the three-dimensional map is predicted according to the visual information of the user; loading a visual area of the monitoring equipment in the target point position area to the user according to the dragging track, and performing real-time monitoring; according to the technical scheme, the visual field and the visual field blind area of the mass monitoring equipment are constructed, so that management personnel can be effectively helped to understand and master the monitoring range of the mass monitoring equipment.

Polymerizable, radiation-curable compositions are provided and comprise (i) monomers and (ii) at least one further component, wherein the (i) monomers comprise (a) at least one urethane (meth)acrylate that is at least difunctional, (b) at least one monofunctional acrylate having an alicyclic group and / or at least one monofunctional methacrylate having an alicyclic group, and (ii) the at least one further component comprises (c) at least one photoinitiator for the UV and / or visible range or a photoinitiator system for the UV and / or visible range. The compositions are usable for producing, via a rapid prototyping, manufacturing, or tooling process, dental prosthetic parts, orthopaedic instruments, or dental pre-forms that have a flexural strength of greater than or equal to 75 MPa, a modulus of elasticity of greater than or equal to 2600 MPa, and / or a water absorption of less than 45 [μg / mm3].

A method and a system have been developed to calibrate the total spectral radiance factor (TSRF) obtained from different instruments. A broad-band light source covering the whole visible range as well as the fluorescence excitation wavelengths is used to measure the TSRF, and one or more narrow-band light sources outside of the fluorescent band is used to measure fluorescent spectral radiance factor (FSRF) separately. After that, the TSRF is adjusted by the FSRF, and a calibrated TSRF can be obtained. This can be applied to characterize Optical Brightening Agents (OBAs) as well as other fluorescent materials without requiring any moving part of the instrument to do the calibration.

In some implementations, a method for authenticating and classifying a set of materials comprises: transmitting a visible range light from a light source toward a vessel containing a material sample; wherein the visible range light passes through the vessel containing the material sample, passes through the material sample, and bounces off a HOE located at a bottom of the vessel toward a camera implemented in a smartphone; receiving, by the camera of the smartphone, the visible range light that bounced off the HOE; based on a mapping of each of the visible range light onto an area of an image sensor, generating a holographic optical element that has a plurality of regions, that receives input light reflected or transmitted through a new material, and that filters the input light to a filtered light by each characteristic light spectra, and mapping the filtered light onto the image sensor's area.

An optical light propagator is provided, having a core formed of a high-κ dielectric material capable of transmitting wavelengths in the UV-visible range, and an outer coating on the core wherein the outer coating is formed of a low- κ dielectric material; wherein the outer coating has a plurality of porosities along the optical light propagator, wherein each of the plurality of porosities transits from an outer surface of the outer coating to an outer surface of the core at an interface between the outer coating and the core, such that wavelengths transmitted through the core of the optical light propagator are emitted through each of the plurality of porosities along the optical light propagator, and fibers, sheets, yarns, and articles made therefrom.

The invention discloses a local refresh and cache collaborative drawing refresh method based on MFC, and the method specifically comprises the steps: recording the change of elements based on a state monitoring mechanism of picture elements, automatically recognizing the change elements and related elements during user interaction or data change, and generating a picture change region; according to the original display range of the change element and the scaling and rolling offset of the current view, coordinate conversion, overlapping merging and visual range cutting are carried out on the change area, and a minimum refreshing range is obtained; executing redrawing in sequence in the refreshing range; maintaining a local cache bitmap for a visible area by using a graphic operator, and based on a mapping relationship between screen coordinates and cache coordinates, only performing cache updating on a failure area, and directly multiplexing a cache in a non-failure area; and when the elements move, the attributes are modified, rolled, zoomed or the resolution is changed, performing differential failure marking on the corresponding local cache region, and realizing cache reconstruction through combination of redrawing and cache zooming.

In order to reduce the load of verifying a visible range, this visible-range identification device comprises: a person data acquisition means for acquiring person data including at least position data, height data, and posture data of a person in a real space; an avatar data generation means for generating, on the basis of the person data and for a person avatar representing the person in model data representing a three-dimensional model in which the real space is expressed, person avatar data including at least position data, height data, and posture data of the person avatar; a visible-range identification means for identifying a visible range of the person avatar in the model data on the basis of the model data and the person avatar data; and a data output means for outputting data for displaying the visible range of the person avatar, in at least a portion of the display range on the display device.

A virtual image display device includes an image generation device, and a concave transmissive mirror configured to reflect image light emitted from the image generation device. A light superimposer is provided on an external side of a partial reflective film provided in the concave transmissive mirror, the light superimposer being configured to superimpose additional light in a visible range on image light transmitted through the partial reflective film.

An emergency exit sign (10) for displaying an emergency exit pictogram (301), wherein the emergency exit sign (10) comprises a device carrier (100) with a housing (101); at least one image sequence (300); a display (200) for displaying a respective image sequence (300), wherein the display (200) has a user-visible area (210a) and a user-invisible area (210b), wherein the user-invisible area (210b) is arranged inside the housing (101) of the device carrier (100); a sensor component (120) for determining data regarding monitoring the user-invisible area (210b) of the display (200); a controller (110) for controlling the display (200) and for evaluating the data determined by the sensor component (120).Each of the images in a sequence of images (300) is identical in the visible area (210a) and features a respective safety sign pictogram (301), and furthermore has a control field (310) in the non-visible area (210b) at a specific, always identical location, which has a specific design (310a, 310b), wherein the specific design (310a, 310b) differs between images of the sequence of images (300), and wherein the safety sign pictogram (301) shown in the visible area (210a) defines a type (V1, V2, V3) of the sequence of images (300).The sensor component (120) is configured to recognize the specific design (310a, 310b) of the control field (310) of the image sequence (300) and / or its temporal change between the individual images of the image sequence (300) and to transmit this recognized data to the controller (110), and the controller (110) is configured to determine the type (V1, V2, V3) of the image sequence (300) displayed on the display (200) based on the data transmitted by the sensor component (120).

A machining center NC operation panel with a body temperature management function includes a visible range image camera and an infrared detection camera on a front surface of an operation panel. A storage unit has: an operator list; a face image file; and a body temperature management file for machine tool users and body-temperature managed users. A control unit includes: a face authentication processing unit; a work information processing unit that calls a work item assigned to the identified operator and displays it on a display unit of the operation panel so as to allow execution of a selection; and a body temperature acquisition processing unit that assesses whether or not the operator has a fever. When receiving a result of the assessment that the operator has a fever, the work information processing unit locks an operation screen of the display unit to inhibit continuation of an operation.

An optical positioning aid for a distance sensor for assisting in the positioning of the distance sensor relative to a measurement object includes a light source and a control unit. The light source is generates a setting light beam having a wavelength in the visible range and is suitable for generating a light spot on a measurement object. The control unit has a distance input and is communicatively connected to the light source to control at least one property of the setting light beam. The control unit evaluates an input value input into the distance input and influences at least one property of the setting light beam on the basis of a result of the evaluation such that the setting light beam allows conclusions to be drawn concerning the input value. A distance measuring system and a method for assisting in the positioning of a distance sensor are also disclosed.

An optical positioning aid for a distance sensor (2) is disclosed to assist in positioning the distance sensor (2, 16) relative to a measurement object (8). The optical positioning aid (6) comprises a light source (10) and a control unit (14). The light source (10) is configured to generate an adjustment light beam (11), wherein the adjustment light beam (11) has a wavelength (λ) in the visible range and is suitable for generating a light spot on the measurement object (8). The control unit (14) has a distance input (15) and is communicatively connected to the light source (10) for controlling at least one characteristic of the adjustment light beam (11). The control unit (14) is configured to evaluate an input value input into the distance input (15) and to influence at least one characteristic of the adjustment light beam (11) based on the evaluation result, so that the adjustment light beam (11) allows conclusions about the input value. In addition, a distance measuring system (1, 1') having the optical positioning aid (6) and a method for assisting in positioning a distance sensor (2, 16) relative to a measurement object (8) are disclosed.

This disclosure relates to the field of rendering technology, providing a method, apparatus, electronic device, and storage medium for rendering fog effects in a virtual scene. The method includes: in response to a target object entering a fog effect area, determining a pre-set visible range of the target object within the fog effect area; determining, based on the visible range, a decal component for simulating a target fog effect within the visible range and a mesh model matching the size of the visible range; attaching the decal component and the mesh model to the target object so that the decal component and the mesh model move with the target object within the fog effect area, forming a fog effect mask for the virtual scene outside the visible range; and controlling the rendering and display of the target fog effect determined based on the decal component, and the virtual scene under the influence of the target fog effect, on the target object's terminal device when the target object moves within the fog effect area. This method significantly enhances the fog effect rendering.

The embodiment of the invention provides a satellite transit signal coverage analysis method and related equipment, and belongs to the technical field of satellites. The method comprises the steps of obtaining two rows of orbit element sets of a target satellite; performing transit analysis of the target time point according to the two rows of orbit element sets to obtain a satellite orbit state of the target satellite at the target time point; performing static geometric coverage analysis according to the satellite orbit state to obtain a first signal coverage area of the target satellite at the target time point; querying a sky visual field graph according to the first signal coverage area, and determining sky visual field information in the first signal coverage area; the sky visible range graph is constructed based on a digital elevation model and field measurement data; and correcting the first signal coverage area according to the sky visual field information to obtain a second signal coverage area. According to the invention, the satellite transit signal coverage analysis precision can be improved.

To provide an apparatus and a method for estimating the degree of steaming of tea leaves, capable of objectively estimating the degree of steaming of steamed leaves, and to provide a method for producing tea leaves.SOLUTION: A steaming degree estimation device for tea leaves includes first measurement means for measuring light intensities of reflected light at a plurality of specific wavelengths by irradiating a plurality of tea leaf samples each having a known steaming degree with light in a visible region, prediction model creation means for creating a steaming degree prediction model representing a correspondence relationship between the light intensities of the reflected light at the plurality of specific wavelengths measured by the first measurement means and the known steaming degrees in the plurality of tea leaf samples, storage means for storing the steaming degree prediction model created by the prediction model creation means, and second measurement means for measuring a light intensity of reflected light at a specific wavelength by irradiating target tea leaves whose steaming degree is to be estimated with light in a visible region. And a steaming degree estimation means for obtaining the steaming degree of the target tea leaves corresponding to the light intensity of the reflected light measured by the second measurement means.SELECTED DRAWING: Figure 4

The present invention relates to a composite glass pane (100) comprising an outer glass pane (1) and an inner glass pane (2) connected to each other via a thermoplastic interlayer (3), characterized in that the composite glass pane (100) has at least one functional film (5) comprising at least one metal layer (6), and the thermoplastic interlayer (3) is formed using at least one thermoplastic film (4B) comprising a refractive index-reducing medium and the refractive index of the thermoplastic film (4B) in the optically visible range between 380 nm and 780 nm is reduced by at least 0.05 by the refractive index-reducing medium.

A backlight including a front reflector disposed on a back reflector and defining a cavity therebetween. For a visible wavelength range and for a first incident angle of less than 5 degrees, the front reflector has an average transmittance of less than 20% for the incident light polarized along a first direction, and an average transmittance of between 20% and 85% for the incident light polarized along an orthogonal second direction. For a visible wavelength range and for a second incident angle of greater than 40 degrees, the front reflector has an average transmittance of less than 40% for each of the first and second directions. For at least a first wavelength in an infrared wavelength range, the front reflector has a transmittance of greater than about 40% for each of the first and second incident angles and for each of the first and second directions. For each of the first and second incident angles, for the incident light polarized along each of the first and second directions, the back reflector has a transmittance of greater than 30% for the first infrared wavelength, and an average transmittance of less than 20% in the visible range.

The utility model discloses an intelligent electronic display instrument which comprises a bus electronic stop board base, a bus electronic stop board box body is fixedly installed on the outer surface of the upper end of the bus electronic stop board base, and a first electronic display screen is fixedly installed on the outer surface of the front end of the bus electronic stop board box body. A second electronic display screen is arranged on the upper portion of the electronic bus stop board box body, a turnover assembly is connected between the second electronic display screen and the electronic bus stop board box body, and the turnover assembly comprises a first fixing block, a second fixing block, a protective shell, a motor, a driven shaft, a connecting arm, a connecting rod, a worm gear and a worm. According to the intelligent electronic display instrument, through the arrangement of the first electronic display screen and the second electronic display screen, the double screens are unfolded at morning and evening peaks to enlarge the visual range, the folding is performed at night to reduce the wind resistance, and through the arrangement of the overturning assembly, the second electronic display screen is conveniently driven to overturn.