28 results about "Optical focusing" patented technology

A system and method are provided for imaging the full surface of an elongated object moving along its longitudinal axis using a single imaging device. The system includes a linear imaging device including an imaging sensor having a plurality of pixels and a lens between the imaging sensor and the object. The lens projects radiation from different circumferential sections of a circumferential perimeter band of the object along different imaging paths onto different pixel sets of the plurality of pixels of the imaging sensor to map the entire circumferential perimeter band onto the pixels of the imaging sensor. An adjustable image reflector in an imaging path between the linear imaging device and a circumferential section of the circumferential perimeter band of the object adjusts the optical focusing of the circumferential section on a corresponding pixel set of the imaging sensor.

The present invention relates to a method and apparatus for processing a workpiece (4), in particular to a method and apparatus for imprinting an anti-glare function through a laser pulse (100) of a laser (1), wherein the apparatus comprises: a laser (1), in particular a short pulse laser or an ultrashort pulse laser, configured to provide a laser beam (10) including a laser pulse (100); a first diffusion lens (2) and a second diffusion lens (2'), each configured to scatter the laser beam (10) and imprint a locally randomized intensity distribution on the laser beam (10) at a focal plane (12), wherein the first diffusion lens (2) and the second diffusion lens (2') sequentially scatter the laser beam (10); and at least one optical focusing system (3) configured to focus the laser beam (10) onto a focal area (120) within a focal plane (12) on the workpiece (4), wherein the laser beam (10) is applied to the workpiece (4) and consequently the workpiece is processed. The invention includes a progression device (5) configured to move a laser beam (10) and a workpiece (4) by one step (V) relative to each other, wherein the progression device includes a scanner device (50) having a first scanner element (500) and a second scanner element (502), the movement of the scanner elements (500, 502) generates one step, the second scanner element (502) includes a second diffusion lens (2'), and the movement of the scanner elements changes a locally randomized intensity distribution.

This invention relates to an instrument for cutting human or animal tissue, including an optical coupler. The cutting instrument includes - a femtosecond laser (1), - a shaping system (2) located downstream of the femtosecond laser (1) for forming a phase-modulated laser beam, - an optical scanner (4) located downstream of the shaping system (2), - an optical focusing system (5) located downstream of the optical scanner (4), and - a control unit (6) for controlling the shaping system (2), the optical scanner (4), and the optical focusing system (5). The instrument is characterized in that it further includes an optical coupler (3) between the femtosecond laser (1) and the shaping system (2), the optical coupler (3) including a photonic crystal fiber for filtering the phase-modulated laser beam (21) from the shaping system (2).

This invention provides an optical signal collection method and an optical signal collection device. The method segments and focuses a target optical signal, receives the segmented optical signal through an interface unit of an optical signal receiving module, and matches the spread of the optical signal source with the spread received by the optical signal receiving module. This method achieves complete signal transmission between the optical signal source and the optical signal receiving module. The optical signal collection device includes an optical focusing structure and an optical signal receiving module. The optical focusing structure segments and focuses the optical signal, and the interface unit of the optical signal receiving module receives the segmented optical signal. By matching the spread of the optical signal source with the spread received by the optical signal receiving module, this invention ultimately achieves low-loss optical signal transmission. This invention has the advantages of high transmission efficiency, good transmission quality, simplicity, convenience, and strong reusability.

The utility model provides a kind of small-bore lens focusing device, belong to optical focusing technical field.Device includes base, screw rod motor, lens moving assembly and lens fixed assembly;Lens moving assembly includes nut assembly, first lens support, first lens, guide rail and slider;Lens fixed assembly includes second lens support and second lens;Screw rod motor drives nut assembly to move along screw rod output shaft, slider is slid along guide rail, make first lens move focusing, and first lens and second lens optical axis coaxial.Through the high accuracy and stability of screw rod transmission, avoid the problem of traditional cam focusing mechanism, focusing feed quantity is stable, compact structure, without cam and gear, suitable for small-bore lens focusing.

This application relates to the field of semiconductor detection technology, and more particularly to a light source module, an optical focusing system, a semiconductor device, and a focusing control method. The light source module comprises multiple monochromatic light sources mounted on a substrate, each emitting light with a different wavelength, and each monochromatic light source includes at least one sub-light source. The light source module can be controlled to emit multiple illumination beams using a preset illumination mode, providing multiple independent or combined illumination channels for the subsequent focusing process. This allows the optical focusing system based on the light source module to utilize the chromatic aberration of different wavelengths of light to form a series of focal points at different positions along the axial direction, significantly expanding the effective axial focusing range of the measurement. Furthermore, the system organically integrates the light source module with a first mask, an objective lens module, a first beam splitter, a first detection subsystem, a second detection subsystem, and a processor, forming a complete, efficient, and high-precision autofocus closed-loop system.

The application discloses a focusing method of a head-mounted display device, the head-mounted display device and a storage medium, relates to the technical field of head-mounted display devices, and discloses a focusing method of a head-mounted display device, which comprises the following steps: acquiring an eyeball image frame collected by a camera device; if eye movement parameters extracted based on the eyeball image frame meet a gaze condition, acquiring gaze depths corresponding to a plurality of continuous eyeball image frames in a preset time window; based on the gaze depths corresponding to the plurality of continuous eyeball image frames, predicting a predicted gaze depth corresponding to a future target time point; starting an actuator of the head-mounted display device before the target time point arrives; and adjusting a gaze focus point of the head-mounted display device through the actuator, so that the gaze focus point coincides with a target focus point corresponding to the predicted gaze depth when the target time point arrives. Through the gaze depth prediction and the pre-driving mechanism, optical focusing is completed at the correct time and at the correct speed, so that the focus lag feeling is eliminated.

A VR headset, belonging to the field of head-mounted display technology, addresses the issue that in gaming and entertainment scenarios, the 3D movement of the user's head can easily cause the VR headset's headband to slip. Combined with device play and inertial jitter, this can lead to overall device misalignment and loosening, resulting in optical focusing distance misalignment, blurred images, ghosting, and dizziness. Existing lens adjustment solutions cannot solve the device shifting problem, and long-term use can easily induce latent strabismus. Furthermore, significant offline dizziness can occur when switching between virtual and real scenes. This invention includes a display device with a fixed connecting base on its top. This invention can adaptively follow the 3D movement of the head, solving the headband slippage and overall device misalignment problems, maintaining stable optical focusing, avoiding blurring, ghosting, and dizziness, reducing the risk of strabismus, alleviating offline dizziness, improving wearing comfort, reducing component wear, and adapting to high-motion scenarios such as gaming and entertainment.

The present disclosure relates to a lens, a camera module and an electronic device. The lens comprises a first lens group and a second lens group. The first lens group has positive refractive power, and comprises a first lens with positive refractive power and a second lens with refractive power. The first lens and the second lens are arranged along an optical axis, and the second lens is located on the image side of the first lens. The second lens group is located on the image side of the first lens group and arranged along the optical axis of the first lens group. The second lens group has negative refractive power, and comprises a third lens with negative refractive power and a fourth lens with positive refractive power. The third lens and the fourth lens are arranged along the optical axis, and the fourth lens is located on the image side of the third lens. The second lens group is movable along the optical axis. The first lens group with positive refractive power is conducive to improving the light collecting ability of the lens. The second lens group with negative refractive power is conducive to realizing continuous optical focusing at different object distances by adjusting the distance between the first lens group and the second lens group.

A binocular assembly (20) includes a first optical pathway (32A) extending from a flat plate mirror (34) to a first eyepiece assembly (24A). The first optical pathway (32A) includes a first penta-right angle prism (36A), a first optical focusing assembly (38A) located along a first focusing axis (44A) for focusing the first optical pathway (32A) from the first penta-right angle prism (36A), and a first pair of right-angle prisms (50A) located along a first prism axis. The binocular assembly also includes a second optical pathway (32B) extending from the flat plate mirror (34) to a second eyepiece assembly (24B). The second optical pathway (32B) includes a second penta-right angle prism (36B), a second optical focusing assembly (38B) located along a second focusing axis (44B) for focusing the second optical pathway (32B) from the second penta-right angle prism (36B), and a second pair of right-angle prisms (50B) located along a second prism axis.

This invention discloses a collaborative intelligent cluster solar-powered sand-fixing robot, relating to the field of sand-fixing robot technology. It includes multiple sand-fixing robots and a multi-vehicle collaborative operation system. Each sand-fixing robot comprises a frame assembly, a drive assembly, an energy system, an optical focusing system, and an intelligent monitoring system. These components are detachably mounted on the frame assembly. The drive assembly propels the sand-fixing robot to move in the sandy environment. The energy system provides power to the robot. The optical focusing system focuses sunlight onto the sand surface to melt the flowing sand and monitors the focal point temperature in real time for feedback control. This invention provides a zero-carbon, intelligent, multi-vehicle collaborative unmanned sand-fixing equipment, solving the problems of low efficiency, reliance on manual labor, high carbon emissions, poor environmental adaptability, and lack of safety guarantees in existing sand-fixing methods, achieving efficient, precise, and safe desert sand-fixing operations.

This utility model discloses a device for surface descaling and descaling of a municipal solid waste incinerator. A handheld handle is fixed to the bottom of the outer casing. The laser emitter, scanning galvanometer, and focusing lens are all located within the inner cavity of the outer casing. A laser irradiation port is provided on the side wall of the outer casing. The laser emitter is connected to the main body via an optical fiber. The scanning galvanometer is located between the laser emitter and the focusing lens. Emitters are also positioned between the scanning galvanometer and the laser emitter, and between the laser irradiation port and the focusing lens. The handheld optical focusing device utilizes the high-temperature ablation effect of laser light to precisely target the descaling area of ​​the incinerator, achieving non-contact descaling. The handheld design allows for flexible operation to adapt to complex furnace structures, avoiding physical damage to the furnace chamber caused by traditional mechanical descaling. Simultaneously, it can quickly remove descaling and corrosive substances from the inner wall of the furnace chamber, superheater, and economizer, while improving the surface's descaling and corrosion resistance.

The application discloses a ranging communication fusion system and method based on spot centroid position offset, and belongs to the technical field of optical ranging and optical communication integration. The system transmits two laser signals and performs PPM modulation, and the modulated signals form spatially distinguishable spots on the imaging surface of an array detector after optical focusing; the spot spatial position information and photon arrival timestamp data are collected, the target distance is calculated based on the spot centroid position offset, laser ranging without echo time is realized, the PPM modulated signal is decoded based on the photon arrival timestamp data to extract communication data, and the fusion of ranging and communication functions is realized. The system of the application supports fixed or adjustable imaging structure, can be flexibly configured between system integration and ranging accuracy according to application requirements, effectively avoids the distance ambiguity problem under the condition of high repetition frequency laser emission, improves the adaptability to high frequency laser emission and high speed modulation, and has compact structure and high integration.

This invention belongs to the field of femtosecond laser micro / nano fabrication technology, specifically disclosing a micro-operating system for fiber optic end faces. Its features include: an optical fiber, a Fresnel lens structure, two hydrogel grippers, and a silver nanoparticle layer. The Fresnel lens structure is directly fabricated and fixed at the center of the fiber end face; the two hydrogel grippers are directly fabricated and fixed to the fiber end face, with the two grippers located on opposite sides of the Fresnel lens structure; the silver nanoparticle layer is attached to the surface of the hydrogel grippers. This invention not only solves the technical challenge of integrating multifunctional microstructures on fiber end faces but also achieves the synergistic operation of optical focusing and mechanical clamping, providing a novel technical solution with a compact structure, integrated functions, and flexible operation for applications such as micro / nano manipulation, micro-perforation, and photothermal ablation.

The present invention relates to an optical sensor, the optical sensor including a light-emitting unit disposed on a substrate and including a light source that emits light in different wavelength bands, a first optical waveguide that transmits the light emitted by the light-emitting unit in a first direction parallel to the substrate surface, and an optical focusing changing member that changes the angle of the light so as to emit the light transmitted from the first optical waveguide in a second direction substantially perpendicular to the first direction. The optical focusing changing member is characterized by having a structure that focuses light transmitted from the first optical waveguide at different positions to a single point.

The application relates to the technical field of cell detection, and specifically discloses a dot-matrix mixed-wave co-polymerization energy source system for single-cell detection, which comprises a mixed-wave length LED dot-matrix module, an active tunable optical focusing module, a closed-loop temperature control and deformation driving module and a biological chip bearing module. The optical focusing module comprises a variable-position Fresnel lens and a bimetallic thermal composite connected with the variable-position Fresnel lens. The temperature of the composite is actively adjusted through the temperature control module, controllable bending deformation is induced by using the difference between the thermal expansion coefficients of the two layers of metal, and the deflection angle of the lens is accurately adjusted. The system forms a closed-loop control based on the feedback of a working wavelength and an illumination sensor, dynamically compensates the dispersion difference and thermal drift effect of different wavelengths, and ensures that the energy sources of different wavelengths can be stably and accurately focused on the micrometer-level target points of the biological chip. The application has high focusing stability and fast response, and is suitable for the fields of high-precision biological detection such as single-cell protein fixation and gel electrophoresis.

The application relates to a full-optical laser-ultrasonic imaging detection system and method for flip-chip solder joint defects, and relates to a full-optical laser-ultrasonic imaging detection system and method. The application is used to solve the problems of low resolution and complicated feature extraction in current laser-ultrasonic detection of solder joints. The application comprises an optical platform, the optical platform is provided with an X-direction moving table, a Z-direction moving table and an optical microphone clamping assembly, the X-direction moving table is provided with a Y-direction moving table, the Y-direction moving table is provided with a sample clamping assembly, the sample clamping assembly clamps a sample to be detected, the optical microphone clamping assembly clamps an optical microphone probe, the Z-direction moving table is provided with a first optical rod, the first optical rod is provided with an optical focusing lens, the optical focusing lens is located above the sample to be detected, the optical microphone probe is located below the sample to be detected, and the optical focusing lens and the optical microphone probe are connected with a computer assembly. The application belongs to the field of integrated circuits and precision measurement technology.

The utility model relates to the technical field of automobile parts and lamps and lanterns, specifically discloses a lens structure for adjusting sunlight focusing, which comprises a fixed lens (1), a lens support (2), a radiator (3), a dimmer motor (4), a ball head rod (5) and a movable lens (6). The utility model is novel in concept, scientific in design and reasonable in structure. The optical focusing of the automobile optical lamp module in the working state and the active defocusing in the non-working state are realized by two lenses to avoid the problem of solar focusing. The utility model is safe, reliable and effective, and the manufacturing cost is low.

This application proposes a telescopic lens, including an optical lens comprising at least two relatively movable first lens components and second lens components arranged sequentially from the object side to the image side along the optical axis; a first driving section including a first driving element; and a second driving section including a second driving element, for driving the first lens components to move along the optical axis of the optical lens to achieve optical focusing. The first driving section is configured to drive the second driving section and the first lens components arranged in the second driving section along the optical axis of the optical lens, wherein, in a projection plane perpendicular to the optical axis of the optical lens, the first driving element of the first driving section and the second driving element of the second driving section are not on the same straight line passing through the optical axis. This allows for optimized utilization of the internal structural space of the telescopic lens, minimizing the lateral structural dimensions of the telescopic lens while ensuring the imaging quality of the camera module.

Disclosed is an apparatus, a system and a method for multiband event-based imaging. The apparatus includes, an optical focusing component to capture and focus incident light from an object in a scene, a multi-band spectral filter assembly to receive and filter the incident light from the optical focusing component, an event sensor including a pixel array to detect one or more events, including sensing a change in relative intensity over time for filtered light received from the multi-band spectral filter assembly, and a filter assembly driver to sweep the multi-band spectral filter assembly in front and across the pixel array of the event sensor, and along a plane of motion perpendicular to the multi-band spectral filter assembly.

The application discloses a kind of intelligent high-precision height gauge and CNC lathe collaborative measurement processing system, it is related to precision measurement and numerical control processing collaborative technical field, including collaborative control module adopts double communication protocol to build real-time communication link, realizes data interaction and action synchronization;High-precision measurement module integrates double sensor, can automatically switch measurement mode, with temperature error compensation and optical focusing function;Data processing module processes data using filtering algorithm, generates deviation report;Processing parameter self-adaptive adjustment module dynamically optimizes lathe processing parameter;Real-time feedback module transmits parameters and verifies execution effect;Safety protection module monitors distance and current, supports emergency stop;Data storage and traceability module records multiple types of information.The application realizes measurement and processing accurate cooperation, intelligent adaptation error and tool state of processing parameter;Multi-station parallel and remote management and control improve efficiency, product quality consistency and production efficiency are significantly improved.

The utility model discloses an optical focusing device, including focusing member, focusing member includes first cylinder and second cylinder, is equipped with first guide portion and first sliding portion on the first cylinder, is equipped with second guide portion and second sliding portion on the second cylinder, the adjusting assembly includes adjusting sleeve and guide piece, and the first end of adjusting sleeve has third guide portion, and third guide portion and first guide portion rotate and cooperate, the second end of adjusting sleeve has fourth guide portion, and fourth guide portion and second guide portion rotate and cooperate, and guide piece is connected with adjusting sleeve, and the third sliding portion on guide piece and first sliding portion axial sliding cooperation, and the fourth sliding portion on guide piece and second sliding portion axial sliding cooperation, in order to guide first cylinder and second cylinder to be close to each other or each other to move away when adjusting sleeve rotates. Its first cylinder and second cylinder are under the control of guide piece, when adjusting sleeve rotates, can only along the axial smooth sliding, reduces the probability of shaking, and installation is convenient, and maintenance is convenient.

The present invention provides an optical signal collection method and an optical signal collection apparatus. The optical signal collection method comprises: segmenting and focusing a target optical signal; receiving segmented optical signals by means of interface units of an optical signal receiving module; and matching the etendue of an optical signal source with the etendue of an optical signal received by the optical signal receiving module. The optical signal collection method of the present invention realizes complete signal transmission between the optical signal source and the optical signal receiving module. The optical signal collection apparatus comprises an optical focusing structure and the optical signal receiving module. The optical signal is segmented and focused by means of the optical focusing structure, and the interface units of the optical signal receiving module receive the segmented optical signals. By matching the etendue of the optical signal source and the etendue of the optical signal received by the optical signal receiving module, the present invention finally realizes low-loss optical signal transmission. The present invention has the advantages of high transmission efficiency, good transmission quality, simplicity and convenience, and strong reusability.

This invention discloses an automatic projection focusing intraoperative navigation system for fluorescence imaging, relating to the field of fluorescence imaging navigation technology. A focusing drive unit drives a near-infrared camera lens assembly and a projection module for optical focusing. The near-infrared camera lens assembly receives fluorescence signals and forms a focal plane image. The projection module projects the processed fluorescence signal onto the tissue surface in real time. A transmission calibration module is coupled to the focusing drive unit for synchronous focusing, ensuring that the projection position of the fluorescence signal on the tissue surface matches the imaging position. This invention achieves synchronous focusing of the near-infrared camera and projection module through a unified linkage focusing mechanism and introduces adjustable calibration coefficients based on their respective optical characteristics. This solves the problems of difficulty in matching the imaging focal plane and the projection focal plane, cumbersome focusing operations, and repeated intraoperative calibration in existing systems. It improves the spatial consistency between intraoperative fluorescence imaging and projection, optimizing surgical navigation efficiency and accuracy.

Transmission assemblies to project illumination from an edge of an electronic device are disclosed. In some examples, the transmission assemblies include an optical source to generate laser light. An optical focusing element to focus the laser light. And a transmitting optical element is arranged at a bezel proximate an external edge of the electronic device. The transmitting optical element receives the laser light from the transmitting optical element and to project the laser light through the bezel to illuminate an object of interest