169 results about "Optical focusing" patented technology

The invention discloses a method for measuring the focus heat effect and the heat damage of a Raman probe. The method comprises the following steps: S1, establishing a stable laser output system, and configuring a proper optical focusing system; s2, heating the standard sample to a target temperature according to a preset step length, keeping for several minutes at each target temperature, and performing spectral measurement on the standard sample by using a Raman spectrometer; s3, in the Raman spectrum measurement process, carrying out real-time temperature monitoring on the surface of the standard sample, and carrying out normalization processing on collected Raman spectrum data; s4, establishing a quantitative relation model between the relative intensity change characteristic # imgabs0 # of the Raman spectrum and the temperature T; and S5, predicting the temperature T of the standard sample under the current preset parameters according to the model, and adjusting the measurement parameters according to the prediction result, so that the predicted temperature T is lower than the temperature threshold value of the to-be-detected sample. According to the method, the thermal effect of the laser can be predicted before Raman measurement, proper measurement parameters are set in advance, and thermal damage to a measured sample is avoided.

The invention discloses an optical thin film thickness monitoring device and an optical thin film coating system, and belongs to the technical field of vacuum coating. A workpiece disc of the optical film thickness monitoring device is provided with a monitoring hole group, the monitoring hole group comprises a first through hole, a second through hole and an interval shielding area, and a film coating monitoring piece is arranged in the first through hole; the irradiation light source is used for emitting light signals to the monitoring hole group; the receiving assembly comprises a light converging element and at least two grating monochromators. The actual physical or optical thickness of the thin film can be calculated by monitoring the transmission or reflectivity of multiple wavelengths and combining the dispersion of the material, and the precision is higher than the precision of monitoring the thickness of the single-wavelength thin film. A plurality of grating monochromaters respectively and correspondingly monitor one wavelength, each grating monochromator can freely select the wavelength, the wavelength selection range is wide, and the problems that the monitoring wavelength is changed and the positioning precision deviation is large in the same grating monochromator are solved. According to the invention, the optical film thickness measurement precision in the online monitoring film coating process can be improved, and the film coating success rate is improved.

The utility model discloses a hollow-core optical fiber confinement gas excitation and collection device. The device comprises a laser system, an optical focusing system, an ion separation collecting electrode, a hollow-core optical fiber and a metal steam supply system, a laser system and an optical focusing system are arranged near one end of the hollow-core optical fiber, a metal steam supply system is arranged near the other end of the hollow-core optical fiber, laser emitted by the laser system is focused on a laser incidence end face through the optical focusing system, and the metal steam supply system is connected with the metal steam incidence end face and outputs metal steam into the hollow-core optical fiber. An ion separation collecting electrode is arranged near the periphery of the laser incident end surface; during collection, the laser system emits laser, the hollow-core optical fiber serves as a working cavity, the metal steam supply system conveys metal steam, the metal steam and the laser collide with each other in the working cavity, metal atoms absorb photon energy and are excited into metal ions, and the ion separation collection electrode separates and collects the metal ions.

The invention discloses a camera module and a motor thereof. The motor for the camera module comprises a base, a movable assembly, a driving assembly and a focusing circuit board, the movable assembly comprises an anti-shake carrier which is movably mounted on the base and a focusing carrier which is movably mounted in the anti-shake carrier; the base and the movable assembly form a carrier assembly; the driving assembly comprises a focusing driving assembly and an anti-shake driving assembly, and the focusing driving assembly is configured to drive the focusing carrier to move along the optical axis direction relative to the anti-shake carrier so as to perform optical focusing; the anti-shake driving assembly is configured to drive the anti-shake carrier to move relative to the base in the first axis direction and the second axis direction perpendicular to the optical axis direction. The focusing circuit board is electrically connected to the focusing driving assembly, and at least part of the focusing circuit board extends above the carrier assembly in the horizontal direction.

The invention discloses a bifocal plane imaging system and a multidirectional beam splitter, and the bifocal plane imaging system comprises an illumination module which is configured to provide an illumination light beam for a to-be-measured piece, and the illumination light beam forms a signal light beam on the surface of the to-be-measured piece; the objective lens assembly is configured to receive the signal light beam and optically focus on the second to-be-measured layer; the light splitting assembly is arranged on an emergent light path of the objective lens assembly and is configured to split the signal light beam to form a first light beam transmitted in a first direction and a second light beam transmitted in a second direction; the first imaging module is configured to receive the first light beam in a first direction and optically focus the first light beam on a first to-be-measured layer through focusing processing, and the first light beam is used for imaging the first to-be-measured layer; and the second imaging module is configured to receive a second light beam in a second direction, and the second light beam is used for imaging a second layer to be measured. According to the invention, the detection efficiency of the two to-be-detected layers can be improved.

The invention belongs to the technical field of garment production and processing, and particularly relates to a garment self-focusing laser pocket opening machine which comprises a laser generation module, a motion control module, a position recognition module and a control system, the laser generation module is composed of a laser generator, a laser power source and an optical focusing system, and the laser generator generates laser beams with specific wavelength and power; the laser power supply provides stable energy, the control system and the laser generation module are integrated together, the motion control module adopts a mechanical transmission mechanism to drive a clamp and clothes to move together according to a preset path to achieve an accurate cutting track, the clamp is used for fixing clothes cloth, and the position recognition module is used for detecting the position, posture and size of the clothes cloth. And the position and the shape of the bag opening are determined through an image recognition algorithm, and accurate position information is provided for laser cutting. According to the bag opening cutting device, bag opening cutting is rapidly completed through the precise motion control module, the efficient laser generation module and the position recognition module.

An eye tracking system for a head-mounted device includes an imaging assembly and an illumination assembly. The imaging assembly is configured to optically focus light from an object plane of an eye onto an image plane of an image sensor, and the illumination assembly is configured to optically project light from an illumination source onto the object plane of the eye. The imaging assembly is configured with an imaging angle coding mapping for optical relay coupling imaging. The illumination assembly is configured with an illumination angle coding mapping for optically coupling a projection.

The invention relates to the technical field of nondestructive testing, and discloses an online rapid nondestructive testing device and method for spot welding quality of a metal film, and the online rapid nondestructive testing device comprises an infrared high-speed imaging module, an eddy current heating and measuring module, a synchronous control module and a motion compensation module. A micro-distance optical focusing lens is matched with a high-speed infrared camera, and a thermal imaging sequence of a welding spot area is collected at a preset frame frequency. The eddy current module adopts a composite multi-frequency PCB coil assembly, a heating coil layer and a measuring coil layer are integrated, the heating coil layer covers multiple rows of welding spots to achieve area heating, the measuring coil layer corresponds to the welding spots one to one, and dynamic power adjustment is achieved through a heating power controller. The synchronous control module coordinates the sequential relation of eddy current excitation, detection and infrared imaging, the motion compensation module corrects welding spot position deviation in real time through visual positioning, and the optical focusing precision is ensured. According to the invention, through synchronous acquisition and analysis of multi-modal data, rapid nondestructive detection of welding defects is realized, and the detection precision and the detection efficiency are improved.

The application discloses a 2 mu m wave band GHz solid mode-locked device based on electric regulation, belongs to the technical field of ultrafast laser and semiconductor device, and comprises a high-brightness fiber laser pumping source, an optical focusing coupling system for focusing and collimating the pumping source, a first input mirror for transmitting and reflecting the focused laser beam, a gain medium for generating and amplifying laser, a second input mirror and a third input mirror for reflecting the focused laser beam, and a two-dimensional Bi2O2Se electro-optic modulation device for modulating the laser beam. The application develops the two-dimensional Bi2O2Se electro-optic modulation device with low saturation flux, fast saturation recovery time and moderate modulation depth, so as to break through the technical barrier of solid GHz femtosecond mode-locked.

A retractable camera module is disclosed, comprising: a photosensitive assembly; and a retractable lens device held on the photosensitive path of the photosensitive assembly; wherein the retractable lens device includes: a first driving element, a second driving element, and an optical lens, the optical lens being mounted within the second driving element. In an operational state, the first driving element is configured to drive the second driving element to move along the photosensitive path, and the second driving element is configured to drive the optical lens to move along the photosensitive path to achieve optical focusing. Thus, the retractable camera module utilizes the advantages of different types of drivers in terms of driving performance to meet the optical performance adjustment requirements of the camera module, such as a relatively long focusing stroke and relatively high focusing accuracy.

The utility model belongs to an immune technology, and particularly relates to a single-molecule immunofluorescence analyzer which comprises a light source and a convergent lens, an optical channel is formed in the guide piece; the moving part is arranged on the outer side of the guide part and moves along the guide part under driving; the fixed part is used for fixing the convergent lens on the movable part, and light penetrating through the convergent lens penetrates through the optical channel; the transmission mechanism is used for converting rotation of the rotating mechanism into rotation of the moving part. The utility model has the advantages of high adjustment precision and the like, and is used in optical focusing.

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.

A water-mist-penetrating temperature measurement system and method for steel hot rolling, the system including a water-mist-penetrating temperature measurement device, and the water-mist-penetrating temperature measurement device including a visible light guiding-tracking assembly, an optical focusing assembly, a dual-wavelength beam splitting assembly, a multi-source information processing assembly, and a display assembly; and the method including the steps of obtaining a dual-wavelength radiation signal and a visible light image signal of the object to be measured, processing the obtained dual-wavelength radiation signal and the visible light image signal, and detecting and processing an abnormally fluctuated temperature data.

The present invention relates to the technical field of three-phase flow detection, and provides a fluorescent fiber optic probe device for three-phase flow detection, comprising: a packaging shell; a sapphire probe disposed within the packaging shell; a connected small-diameter self-focusing lens and a large-diameter self-focusing lens located above the sapphire probe; an integrated fiber bundle structure divided into a transmitting fiber and a receiving fiber within a main cavity; a laser transmitting module connected to the transmitting fiber; a collimating lens located above the receiving fiber; a trapezoidal waveguide structure located above the collimating lens; a first optical focusing assembly and a second optical focusing assembly disposed side by side above the trapezoidal waveguide structure, with a reflective volume holographic grating disposed below the first optical focusing assembly; a first photoelectric conversion module and a second photoelectric conversion module; and a main control module. The device of the present invention can effectively avoid optical power attenuation caused by optical fiber splitting and filters, thereby ensuring optical signal transmission efficiency and detection accuracy.

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.

Device and method for evaluating fracture surfaces of two fracture partners (14, 30) comprising the steps of: providing an analysis system comprising a measuring device, having an image acquisition device (42, 44) with a lens (28) adjustable, in particular with regard to optical focus, for sensorially detecting a first fracture surface of a first fracture partner and an associated second fracture surface of a second fracture partner, wherein the measuring device is configured and set up to provide sensory information of the detected fracture surfaces, a sample holder for holding the first and / or second fracture partner, an illumination device (22) for illuminating the first and / or second fracture surface to be detected by the measuring device, a display device for visually displaying sensory information provided by means of the measuring device, and arranging the first and / or second fracture partner on the sample holder.Performing optical scanning, displaying information provided by the measuring device, evaluating the sensor information of the scanned first and second fracture surfaces.

The invention relates to the field of research, development and application of novel semiconductor sensing equipment, in particular to a carbon-based sensing system based on a high-integration narrow-band imaging array and a construction method of the carbon-based sensing system. According to the invention, the carbon-based photoelectric sensing array is prepared by a liquid phase method and a transfer method with high uniformity and expandability, and a carbon-based sensing system is constructed on the basis of the carbon-based photoelectric sensing array; the carbon-based sensing system comprises a multi-pixel carbon-based sensing array based on conjugated polymer / semiconducting carbon nanotubes / metallic carbon nanotubes, an electrical readout system and an optical focusing assembly. The 4096-pixel integrated photoelectric sensing array and the carbon-based sensing system constructed by the 4096-pixel integrated photoelectric sensing array are prepared by a whole set of optimized liquid phase deposition, spin coating and transfer processes for the first time, and the system has quick response and high photoelectric response capability and can realize high-integration-level and high-performance optical signal detection and high-quality imaging functions.

Embodiments of the present disclosure relate to optomechanical transducer devices and corresponding methods. An exemplary device includes an optically transparent substrate having a first surface and a second surface; a piezoelectric film disposed on the first surface and oscillating in response to a light beam propagating through the substrate; at least one reflective facet facing the substrate and disposed at the piezoelectric film; and an optical element that receives the light beam at an input end and guides the light beam to an output end coupled to the second surface. The optical element includes an optical focusing path that focuses the light beam at a focal point of the piezoelectric film, and at least one optical collimation path that collimates the light beam onto at least one of the reflective facets. The optical element guides light reflected from at least one of the reflective facets to the input end, and the reflected light indicates the position of the optical element relative to the focal point.

The invention provides an optical lens, a camera module and an electronic device, the optical lens comprises a first lens group, a first prism and a second lens group which are sequentially arranged from an object side to an image side, the first lens group has positive focal power, the first lens group is a focusing lens group, and the first lens group is used for receiving light emitted into the optical lens; the first prism is used for reflecting the light from the first lens group at least twice; the second lens group has negative focal power, the second lens group is a focusing lens group, and the second lens group is used for receiving the light emitted from the first prism; wherein the optical lens can selectively move at least one lens group in the first lens group and the second lens group so as to realize optical focusing of the optical lens. The first lens group and the second lens group are focusing lens groups, and the optical lens can complete focusing through alternate movement of the two lens groups, so that the focusing stroke of a single lens group can be reduced, the movement precision of the lens groups can be improved, and the focusing precision of the optical lens can be improved.

The invention provides a transfer printing method and system for a cosmetic contact lens VU line printing machine, and the method comprises the steps: cleaning a flat steel plate, directly printing a pattern matched with a to-be-printed area of a cosmetic contact lens on the surface of the steel plate in an ink-jet manner, recognizing the center position of the ink-jet pattern through an optical focusing device, and locking the coordinate, and controlling the rubber head to adsorb the ink and then transferring the ink to the surface of the cosmetic contact lens, and finally performing surface curing treatment on the cosmetic contact lens. The system comprises a plurality of function modules which cooperatively execute the method. The ink jet mode is adopted to replace a traditional laser etching machining steel plate, precise positioning is achieved through optical focusing, various pattern transfer printing of cosmetic contact lenses is adapted, and technical management and control of the whole transfer printing process are improved.

The invention discloses an anti-fog, anti-fouling and anti-icing optical focusing element and a preparation method, for the first time, it is proposed that bionic bent microcolumns are applied to the surface of an optical element, and the pure geometric design solves the anti-fog, anti-fouling and anti-icing problems of the optical focusing element and becomes a key for improving the reliability of an optical device in a complex environment; based on the flexibility of femtosecond laser processing, different scanning paths are designed, and precise controllable preparation of the bent micro-column array is realized on the surface of the thermal shrinkage type memory polymer by adjusting laser energy, scanning speed and the like; then, the bent micro-column is transferred to the surface of the optical focusing element through soft photoetching, air pressure auxiliary forming and other processes; the invention develops an integrated optical surface with bionic directional bouncing, anti-fogging, anti-fouling and anti-icing functions, and is suitable for an extreme environment optical system such as aerospace laser radar and the like.

The invention discloses a tissue ablation method based on double scanning modules, which comprises the following steps: firstly, acquiring a three-dimensional model and a motion mode of a target tissue, then determining a three-dimensional moving track and a two-dimensional scanning path of an optical focusing module based on the three-dimensional model and the motion mode, and moving the optical focusing module to an initial focusing position; and finally, the laser source is started to emit laser, the optical focusing module is controlled to move along the three-dimensional movement track, meanwhile, the focus of the laser is controlled to scan in the designated area based on the two-dimensional scanning path, the peak power density of the laser is not lower than a nonlinear breakdown threshold value, and the designated tissue is mechanically damaged. By means of multi-stage scanning and synchronous positioning, high-precision, large-area and three-dimensional dynamic focusing treatment can be achieved, and the high-precision and low-heat-damage controllable ablation effect is achieved.

The invention relates to the technical field of photovoltaic module manufacturing, in particular to a device and method for removing an adhesive film through femtosecond laser welding of photovoltaic glass of a double-glass photovoltaic module. In view of the problems of aging, high cost, low efficiency and the like in the traditional adhesive film welding process, the device comprises a femtosecond laser energy regulation and control module, an optical focusing module, a path planning module and the like. In the implementation process, all the modules work cooperatively, and welding is achieved through the procedures of plasma treatment, nanometer texturing and the like. The final result is remarkable, the welding quality is improved by 35%, the reject ratio is reduced to below 0.7%, the cost of a single chip is reduced by 3 yuan, more than 5 million yuan is saved per year, the production efficiency is improved by 2.2 times, and the development of the photovoltaic industry is effectively promoted.

The invention belongs to the technical field of visible light communication, and particularly relates to a wide-spectrum visible light receiving system using an achromatic lens combination. The visible light receiving system comprises an achromatic lens combination and a PD. The achromatic lens combination is composed of a large-size common optical focusing lens and a small-size super lens with a phase compensation function. The super lens takes a glass cylinder as a bottom support, and a TiO2 nano-column assembly with the same height is arranged on the glass cylinder; the optical focusing lens is located on the left side of the system, the super lens is located in the middle, and the PD is located on the rightmost side; the distance between the PD and the top of the TiO2 nanorod is equal to the focal length of the super lens on the extension line of the central line of the super lens; the layout ensures that the visible light emitted by the LED is accurately converged at the central position of the light absorption chip of the PD through the super lens, so that the light energy absorbed by the PD can be greatly enhanced, a plurality of lenses and objective lenses do not need to be used for zooming light beams to introduce extra chromatic aberration, and the signal detection and processing effects are greatly improved.

Optical system (21) for a metrology system (1) for measuring an object (2) in the form of a lithography mask, - with an object holder (14) for holding the object (2) in an object plane (13), - with a transmissive optical focusing component (11) arranged in the beam path of illumination light (4) between a light source (5) of the metrology system (1) and an object field (12) in the object plane (13), to generate an illumination focus (16) in the beam path of the illumination light (4) after the transmissive optical focusing component (11), - wherein the transmissive optical focusing component (11) has a focal length (f1) that is less than 5 mm, - with a detection device (6) for detecting the illumination light (4) in the beam path after the object field (12), - with an imaging optic (22) for imaging the illumination focus (16) generated by the transmissive optical focusing component (11) into a further illumination focus (16') in the area of ​​the object field (12).

The invention discloses material cutting equipment for textile printing and dyeing roller processing, and relates to the technical field of textile printing and dyeing equipment, the material cutting equipment comprises a magnetic suspension guide rail, an ion beam cutting assembly and a miniature shaft knuckle arm; the magnetic suspension guide rail adopts a non-contact suspension structure in which a superconducting magnet is matched with a permanent magnet array, and the energy density, the magnetic field intensity, the direction and the focusing state of an ion beam are accurately controlled by utilizing structures such as an ion source beam generator, an ion optical focuser and a driving gear structure under the matching of an ion beam cutting assembly; high-precision cutting of textile printing and dyeing roller materials can be achieved, the quality of printing and dyeing products is improved, the equipment can adapt to machining of textile printing and dyeing rollers of different materials, different shapes and different sizes, heat affected zones and material deformation in the cutting process are reduced through precise ion beam control, the follow-up printing and dyeing process is facilitated, and the production efficiency is improved. And the problems of pattern flaws, uneven coloring and the like caused by roller body surface problems in the printing and dyeing process are reduced.

The invention belongs to the technical field of solar power generation, and particularly discloses a solar power generation device capable of enhancing sunlight irradiation, which comprises a base, convex blocks are fixedly connected to the two sides of the base, electric rotating shafts are mounted on the convex blocks on the two sides, and connecting plates are fixedly connected to the outer side walls of the electric rotating shafts. A light gathering plate is fixedly connected between the connecting plates on the two sides, a drainage groove is formed in the light gathering plate, a support is fixedly connected to the outer side wall of the light gathering plate, a photovoltaic cell is installed on the support and located above the light gathering plate, and a cleaning mechanism is arranged on the light gathering plate. The cleaning mechanism comprises limiting rails arranged on the two sides of the condensation plate, large-area sunlight is reflected to the photovoltaic cell in a concentrated mode through the design of the inwards-concave arc-shaped condensation plate and the curved surface optical focusing principle, the light energy density received by the photovoltaic cell is remarkably improved, and compared with a traditional plane structure, the power generation efficiency is greatly improved.

The invention relates to a backscatter laser spectrometry device (1) comprising a laser source (30), an optical focusing system (50), an optical separator (60), and a spectrometer (80). According to the invention, the spectrometry device comprises a beam splitter (40) arranged on an optical path of the source light beam upstream of the optical separator, wherein the optical focusing system is arranged and configured to focus a first and a second secondary excitation light beam (402, 404) onto a first and a second measurement point (202, 204), respectively, wherein the optical focusing system is adapted to collect a first and a second backscattered light beam (412, 414), respectively, wherein the optical separator is adapted to direct the first and the second backscattered light beams toward a first and a second point (822, 824) at the entrance of the spectrometer, respectively, and wherein the spectrometer directs the first and the second backscattered light beams onto a first and a second zone (842, 844) on the multichannel detector, respectively.