37 results about "Visual optics" patented technology

A device and method to non-invasively identify pathological skin lesions. The method and device detect and identify of different kinds of skin nevi, tumors, lesions and cancers (namely, melanoma) by combined analyses of visible and infra-red optical signals based on integral and spectral regimes for detection and imaging leading earlier warning and treatment of potentially dangerous conditions.

A visual optical analysis system based on a wave-front aberration is provided, which belongs to the technology field of medical optics. In the invention, a first light splitter is positioned between a light diaphragm and a cornea, the emergent light from a Placideo's disk passes through a second light splitter and a third light splitter and then is projected onto the surface of the cornea, the emergent light from the cornea is reflected by a fourth light splitter to a corneal topography imaging system, the corneal topography imaging system is positioned between a first aperture-matching system and a monitoring CCD, an astigmatism compensation system is positioned between the first aperture-matching system and a beam-splitting prism, a part of the emergent light reflex from the beam-splitting prism passes through a second aperture-matching system and then one part thereof reaches an object and the other part radiates to a Shack-Hartmann wave-front sensor, the emergent light from the beam-splitting prism is partially transferred to a deformable mirror, an imaging objective lens is provided between a fifth light splitter and the object, and the Shack-Hartmann wave-front sensor and the deformable mirror are respectively connected with a computer. The visual optical analysis system realizes the data acquisition of human eye aberration and corneal topography, as well as correction of the human eye aberration.

The invention relates to a laminated multi-layer visual optical effects structure plastic product which can be a card or similar object and to the process for producing the plastic product structure with printed visual optical effects structure layers comprising a printed linear aperture clear and opaque sections on one surface of a clear plastic substrate and another layer of printed interlaced images on the opposing surface of the clear plastic substrate, either the same clear plastic substrate or multiples thereof. Printing can be by offset lithography or by silk-screen printing. Positioning and alignment of the printed images is controlled by a computer graphics program.

A periscopic optical training system for displaying simulation and real images includes a microprocessor for generating at least one simulation image, at least one display for displaying the simulation image, at least one periscopic device each with a viewing window for receiving the simulation and real images, and a controller for controlling the simulation and real images to be received by the periscopic device interchangeably or simultaneously.

An array of progressive ophthalmic lens elements is disclosed. The progressive ophthalmic elements contained in the array having substantially the same addition power and substantially the same optical prescription for distance vision. Each of the progressive ophthalmic lens elements has a progressive lens design characterised by a set of parameters defining a distance zone providing a refracting power for distance vision, a near zone providing a refracting power for near vision and a corridor having a refracting power varying from that of the distance zone to that of the near zone. The progressive ophthalmic lens elements provide, for a range of values or categories of at least two lifestyle and / or biometric parameters of lens wearers, different progressive lens designs in which at least two of the lens design parameters each have a respective value or characteristic attributable to, or associated with, a particular value or category of a respective one of the lifestyle and / or biometric parameters.

The invention relates to a display screen of an integrated antenna, a display device and electronic equipment. The display screen comprises a conductive grid layer, and the antenna is composed of at least part of patterns of the conductive grid layer. The antenna is integrated in the display screen and comprises a millimeter wave antenna. The millimeter wave antenna comprises a plurality of millimeter wave antenna units. Wherein the at least two millimeter wave antenna units are mutually connected to form a connection structure, and the connection structure is at least multiplexed to form a first part of the non-millimeter wave antenna. According to the display screen integrated with the antenna, the display device and the electronic equipment, the size of the antenna can be effectively reduced, and the influence of the antenna on the visual optical effect and the touch effect of the display screen is reduced, so that the function and the value of the display screen are increased, and meanwhile, the visual and touch experience of a user is guaranteed.

An aerosol delivery or electronic nicotine delivery systems (“ENDS”) device may include smoking articles that produce aerosol. The device may operate upon authentication. The authentication may first include an age verification before an authentication allows for operation of the device. The authentication may include a control signal communication to the device. The control signal communication may include an audio signal, such as an authentication tone that is detected by a microphone or pressure sensor on the device. The control signal communication may include a visual, optical, or light signal that is detected by a light sensor or photodiode on the device.

A visual optical analysis system is provided, which belongs to the technology field of medical optics. In the invention, the emergent light from a collimated laser source passes through a first light splitter and then is reflected to a cornea, the light from a flash lamp passes through an optical grating and a light-filtering projection system and then is projected onto a second light splitter, the second light splitter is positioned between the light-filtering projection system and the first light splitter, a third light splitter is provided between an aperture matching system and an imaging objective lens, an object is provided outside the third light splitter, a fourth light splitter is provided between the third light splitter and the light-filtering projection system, a part of the emergent light reflex from the cornea passes through the light-filtering projection system and then reaches a monitoring CCD, a defocusing compensation system is provided inside the aperture matching system, an astigmatism compensation system is positioned between the aperture matching system and a Shack-Hartmann wave-front sensor, and the Shack-Hartmann wave-front sensor is connected with a computer. The visual optical analysis system can accurately detect the corneal topography and the total aberration of human eyes and also accurately calculate the corneal aberration and the intraocular aberration.

An aerosol delivery or electronic nicotine delivery systems (“ENDS”) device may include smoking articles that produce aerosol. The device may operate upon authentication. The authentication may first include an age verification before an authentication allows for operation of the device. The authentication may include a control signal communication to the device. The control signal communication may include an audio signal, such as an authentication tone that is detected by a microphone or pressure sensor on the device. The control signal communication may include a visual, optical, or light signal that is detected by a light sensor or photodiode on the device.

Described herein are digital microfluidic (DMF) devices and corresponding methods for managing reagent solution evaporation during a reaction. Reactions on the DMF devices described here are performed in an air or gas matrix. The DMF devices include a means for performing reactions at different temperatures. To address the issue of evaporation of the reaction droplet especially when the reaction is performed at higher temperatures, a means for introducing a replenishing droplet has been incorporated into the DMF device. A replenishing droplet is introduced every time when it has been determined that the reaction droplet has fallen below a threshold volume. Detection and monitoring of the reaction droplet may be through visual, optical, fluorescence, colorimetric, and / or electrical means.

The invention discloses a polarized light type visibility measurement instrument, in particular a visual optical measurement instrument. Under the condition of keeping background luminance of a view field invariable, the luminance of a target to be measured is changed by the change of the corner of an analyzer in the instrument relative to a polarizer according to a polarization principle of light so that the contrast ratio of the target to the background of the target is changed and the visual critical condition is met, and the corner is converted to the function of visibility; therefore, the aim of measuring the visibility of the target is fulfilled. The visibility measurement instrument is the visual optical measurement instrument in the field of psychophysics. In the illumination engineering and technology, the number and quality of illumination can be evaluated quantitatively, the visual fatigue can be measured quantitatively, and the visibility (seeing or visuality) of special targets (such as maritime navigation, aviation flight and other aspects) can be measured under various natural conditions (climate, rain and fog).

The invention discloses a gasket size detection system and method based on machine vision, a processing terminal and a medium, and relates to the technical field of gasket quality detection and visual optical design. In order to solve the problems that in the prior art, unqualified products cannot be removed in real time, random angle detection cannot be carried out, the method cannot adapt to actual production, the labor intensity is increased, and the maintenance cost is high in the prior art, the number of products in an image is judged, affine transformation is carried out on the products at the specific positions, and background interference is removed; secondly, the to-be-detected gasket is positioned, and the measured position of the to-be-detected gasket is subjected to contour extraction; and finally, the actual size of the to-be-detected gasket is calculated according to the proportional relation between the view field range of the image acquisition equipment and the image pixels. The problem of noisy points caused by optical interference is avoided; according to camera size detection, the placement direction of the workpiece is random, detection can be carried out when the workpiece exists in the collected image, position and angle correction is carried out on the detected object through an algorithm, and feeding consistency is achieved.

The invention discloses an image acquisition system and method based on gear shaft visual detection, a product, equipment and a terminal, and relates to the technical field of gear shaft product defect detection and visual optical design. A shooting station is arranged, the upper and lower end surfaces and the upper and lower tooth surfaces of a gear shaft respectively use a set of independent shooting units which are respectively used for detecting surface defects of the upper and lower end surfaces and the upper and lower tooth surfaces of the gear shaft; end surface shooting units are arranged, the shooting units shooting the upper and lower end surfaces are mirror images of each other along the tooth surfaces, and the upper and lower end surface areas of the gear are shot; tooth surface shooting units are arranged, the shooting units shooting the upper and lower tooth surfaces are mirror images of each other along the axis of the gear, and the upper and lower tooth surface areas are shot. According to the optical design system, the picture information of each surface of the gear shaft is effectively collected, the number of cameras and light sources is reduced, mechanical motion scheme design is facilitated, and potential risks and equipment maintenance cost are reduced. When the optical design system is implemented, an original gear shaft production line does not need to be broken, and shooting can be completed only by stopping on the original production line.

An aerosol delivery or electronic nicotine delivery systems (“ENDS”) device may include smoking articles that produce aerosol. The device may operate upon authentication. The authentication may first include an age verification before an authentication allows for operation of the device. The authentication may include a control signal communication to the device. The control signal communication may include an audio signal, such as an authentication tone that is detected by a microphone or pressure sensor on the device. The control signal communication may include a visual, optical, or light signal that is detected by a light sensor or photodiode on the device.

The invention discloses a simulation optical eye function model, and belongs to the technical field of simulation eye models for teaching. The model comprises an optical bench base, a light source assembly, a cornea assembly, an iris assembly, a lens assembly and a retina assembly, the optical bench base comprises a first base plate, a second base plate, a first guide rail and a second guide rail,the first and second base plate are separately provided with guide rail insertion holes, and the two ends of the first guide rail and the second guide rail are arranged between the first seat plate and the second seat plate in parallel in a penetrating mode through the guide rail insertion holes; and base sliding blocks of the light source assembly, the cornea assembly, the iris assembly, the crystalline lens assembly and the retina assembly are installed on the first guide rail and the second guide rail through a first sliding hole and a second sliding hole and can slide along the rails. Themodel can be used for demonstrating the optical function of human eyes and simulating the biological characteristic change of optical structures of the eyes, so that the influence of the optical structures on light refraction and aberration is understood, a calculation method used for visual optics is used for calculating and correcting the refraction problem, and the problem which is difficult to understand by eye optics is visualized.

The invention discloses an optical design system based on tablet visual inspection, a shooting method and a controller, and relates to the technical field of tablets and tablet package defect detection and visual optical design. Detection objects are tablets, a packaging substrate aluminum foil plate of the tablets and bubble caps wrapping the tablets. The optical design system based on tablet visual inspection further comprises a first lighting unit and a first shooting unit; a second lighting unit and a second shooting unit; a third lighting unit and a third shooting unit; a fourth lighting unit and a fourth shooting unit; a fifth lighting unit and a fifth shooting unit; and a control unit which is connected with the first lighting unit, the second lighting unit, the third lighting unit, the fourth lighting unit and the fifth lighting unit. According to the technical scheme disclosed by the invention, labor is saved, the labor intensity is reduced, and the maintenance cost and potential risks are reduced; and the shooting precision and the detection speed are improved.

The invention discloses a frame glasses adaptability detection and evaluation method, which is designed for detecting and evaluating the adaptability effect of frame glasses and the head and face partof a person needing a pair of glasses in real time. The method is characterized in that a coordinate point and a displacement measurement point are respectively arranged on the adaptive frame glassesand the head and face skin of the person needing a pair of glasses; after the person needing a pair of glasses does habitual activities, offset data of each measuring point is read; the offset data and optometry data of the person needing a pair of glasses are jointly substituted into a mathematical model for operation; the adaptability is comprehensively evaluated. The method belongs to initiative application to the technical field of visual optics glasses dispensing science, breaks through a frame glasses adaptability effect evaluation technology, and provides an important theoretical verification and judgment basis and operation flow process for building followable, objective and consistent glasses dispensing evaluation standards; important contribution is made in aspects of protectingthe human visual development and improving the visual function. The method has the advantages that the technology is scientific; the measurement is precise; the operation is convenient; the method issuitable for comprehensive detection and evaluation on the adaptability with the head and face of the person needing a pair of glasses in different environments; through the application, the occurrence of conditions of glasses incompatibility can be greatly reduced; social benefits and economic benefits are great.

The invention relates to a parallax elimination machine vision optical system. The optical system of the lens comprises a front group A, a aperture C, a rear group B and the flat glass sequentially arranged along the incident direction of the light from left to right, wherein the front group A comprises a double-convex lens A1 with positive refractive power, a meniscus lens A2 with positive refractive power, a meniscus lens A3 with negative refractive power, a meniscus lens A4 with positive refractive power, a double-convex positive lens A5 and a meniscus lens A6 with negative refractive power, and the rear group B comprises a double-concave negative lens B1 and a double-convex positive lens B2. The optical system meets telecentric system requirements of the object, magnifying powers of detected images can be made be uniform within the certain object distance range, and the distortion factor of the detected images is greatly reduced through quite small distortion.

The invention provides a positioning method, a visual map generation method and a visual map generation device, and relates to the technical fields of computer vision, optical character recognition, intelligent traffic and augmented reality in the technical field of artificial intelligence. According to the specific implementation scheme, a parking space number corresponding to a parking space image is obtained, three-dimensional coordinates and three-dimensional poses of the parking space number in a world coordinate system are obtained according to the parking space number and a visual map, the visual map is generated according to the parking space number, and a first conversion matrix from a camera coordinate system to a parking space number coordinate system is obtained; the parking space number coordinate system is constructed according to the parking space numbers, and the three-dimensional coordinates and the three-dimensional poses of the camera in the world coordinate system are determined according to the first conversion matrix and the three-dimensional coordinates and the three-dimensional poses of the parking space numbers. According to the method, positioning is achieved without excessively depending on visual features, the method is not affected by factors such as environment and texture repeatability, the positioning effect is enhanced, and the method is easy to rapidly deploy and landing and low in later maintenance cost.

An illumination system has a display area and a main light source arranged above the display area, and an auxiliary light source arranged above the display area. The illumination system and the lamp through the visual optical superposition principle, provides brightness lighting by the main light source and provides different quantities of auxiliary light sources to flicker the subject. Consumers gain a better shopping experience as the gradient of the light changes so smoothly as to be imperceptible.

The invention discloses a visual optic sensing method for detecting a target-mediating agglutination reaction of nano-gold probes on the basis of Tyndall effect. In the method, by means of an analyticsubstance in a sample solution, a reaction solution, which contains a target capable of mediating the agglutination reaction of naked nano-gold probes or biofunctionalized composite nano-gold probes,can be obtained; then the reaction solution is mixed and reacted with a nano-gold probe solution in order to observe an optical signal of the Tyndall effect of the mixed solution under laser beam formed by a laser pen or a laser device, wherein the signal intensity is in positive correlation with the concentration of the analytic substance. Through a cheap portable device for reading the signal (i.e. the optical signal of the Tyndall effect), low-cost portable quantitative detection of the analytic substance is achieved. The method has simple operations and low cost, is free of special analytic instruments and equipment and is suitable for on-site analysis and real-time detection, and can be directly promoted in the fields such as medical diagnosis, environment monitoring, food safety andthe like.

Methods for detecting submolar concentrations of a target analyte in a sample are disclosed. These methods combine a process of biomarker to bead conversion with bead enrichment and simple visual, optical, or electrochemical detection of the presence of enriched beads to provide sensitive and inexpensive assay for detecting analytes in a sample. Devices for performing these methods are also disclosed.

Disclosed are systems and methods for generating search result data based on machine-encoded text generated by computer vision optical character recognition machine learning techniques performed on digital media. The disclosed systems and methods provide a novel framework for performing machine learning visual search or machine learning text extraction techniques on digital media in order to extract and analyze the data therein and further conduct search queries based on the extracted and analyzed data. The disclosed framework may leverage the aforementioned computer vision machine learning techniques in order to provide a user with relevant search results regarding objects and text detect in digital media captured on a user device.

The invention relates to the technical field of bearing detection, and provides a bearing ball counting visual detection system, which comprises a circulating object carrying structure and a visual optical system, and is characterized in that the circulating object carrying structure comprises a rotating structure and belt conveying structures, and the belt conveying structures are symmetrically arranged at two sides of the rotating structure; the visual optical system comprises a light source, a CCD lens, an image acquisition card and a computer, the light source and the CCD lens are symmetrically installed on the upper portion and the lower portion of the rotating structure, the image acquisition card processes images acquired by the CCD lens and uploads the images to the computer, and the computer carries out counting detection on the bearing balls through a built-in algorithm; the problems that the labor intensity of manual detection is high, the working efficiency is low, and theproduction quality of the bearing cannot be fully guaranteed are solved.

The invention relates to a parallax elimination machine vision optical system. The optical system of the lens comprises a front group A, a aperture C, a rear group B and the flat glass sequentially arranged along the incident direction of the light from left to right, wherein the front group A comprises a double-convex lens A1 with positive refractive power, a meniscus lens A2 with positive refractive power, a meniscus lens A3 with negative refractive power, a meniscus lens A4 with positive refractive power, a double-convex positive lens A5 and a meniscus lens A6 with negative refractive power, and the rear group B comprises a double-concave negative lens B1 and a double-convex positive lens B2. The optical system meets telecentric system requirements of the object, magnifying powers of detected images can be made be uniform within the certain object distance range, and the distortion factor of the detected images is greatly reduced through quite small distortion.

The invention relates to the technical field of detection equipment, and particularly discloses a machine vision optical detection system and method.The machine vision optical detection system comprises a vision optical detection body, a transmission mechanism, a first transmission belt, a second transmission belt, a driving assembly, a leading-in mechanism, a leading-out mechanism and a wiping mechanism; the driving assembly is arranged on one side of the transmission mechanism, the first transmission belt is arranged on one side of the transmission mechanism, the leading-in mechanism is arranged on one side of the first transmission belt, the wiping mechanism is arranged between the first transmission belt and the transmission mechanism, the second transmission belt is arranged on one side of the transmission mechanism, and the leading-out mechanism is arranged on one side of the transmission mechanism. And the guide-out mechanism and the second transmission belt are oppositely arranged. Through the arrangement of the structure, dust on the surface of the transparent plate body can be effectively cleaned, the detection result of the visual optical detection body is prevented from being influenced, and the detection result is more accurate.

The present disclosure relates to a display screen integrated with an antenna, a display device and electronic equipment. The display screen includes a conductive grid layer, and the antenna is formed by at least a partial pattern of the conductive grid layer. The antenna is integrated in the display, and the antenna includes a millimeter wave antenna. The millimeter wave antenna includes a plurality of millimeter wave antenna elements. Wherein, at least two millimeter-wave antenna units are connected to each other to form a connection structure, and the connection structure at least multiplexes to form the first part of the non-millimeter-wave antenna. The above-mentioned display screen, display device, and electronic equipment with integrated antenna can effectively reduce the size of the antenna, and reduce the influence of the antenna on the visual and optical effects of the display screen and the touch effect, so as to increase the function and value of the display screen while protecting users. visual and tactile experience.

The invention discloses a portable multi-working-condition universal axis calibration device which comprises an optical objective lens assembly (1), an optical eyepiece assembly (2), a spectroscope (3), an imaging display assembly (4), a laser assembly (5), a centering cylinder (6) and a lens cone (7). Target light is split by the spectroscope (3) and then reaches the imaging display assembly (4) and the optical eyepiece assembly (2). An indication light beam of the laser assembly (5) points to the center of a target; through function extension, the overall optical axis direction is adjusted through the added double-optical wedge lens set (8), the optical reticle provides an alignment reference target, and the multiple reflection elements are matched to achieve positive image visual observation and eliminate the aiming error caused by off-axis use of the laser assembly (5). According to the device, three axis calibration working conditions of active laser indication, electronic image and visual optics are realized at the same time, and the technical problem of quick and accurate gun calibration under complex terrains, meteorological conditions, day and night environments and special conditions is solved.

Disclosed are systems and methods for generating search result data based on machine-encoded text generated by computer vision optical character recognition machine learning techniques performed on digital media. The disclosed systems and methods provide a novel framework for performing machine learning visual search or machine learning text extraction techniques on digital media in order to extract and analyze the data therein and further conduct search queries based on the extracted and analyzed data. The disclosed framework may leverage the aforementioned computer vision machine learning techniques in order to provide a user with relevant search results regarding objects and text detect in digital media captured on a user device.