27 results about "Monochromatic beam" patented technology

Light device for projecting an image onto the ground. Light device (2) for a motor vehicle (1), the light device (2) being configured to project an image around the vehicle (1), the light device (2) being characterized in that it comprises: at least one light source (4) configured to produce a monochromatic light beam (F); at least one optical device (14) juxtaposed to the light source (4) such that the light beam (F) produced by the light source (4) passes through the optical device (14), said optical device (14) comprising at least one metal lens (15) configured to modify at least one optical property of the wavefront of the light beam (F). Figure for the abstract: Fig. 2

A light generator (1) comprising: - an optoelectronic device (11) configured to produce a first monochromatic beam (R1) so as to generate light (L1) at a first wavelength (λ1), - a phosphor layer (12) offset from said optoelectronic device (11) and configured to convert all or part of the first monochromatic beam (R1) into a second beam (R2) so as to obtain converted light (L2) at one or more second, higher wavelengths (λ2) and to diffuse it, characterized in that it comprises: - a first dichroic filter (13) configured to transmit the light (L1) emanating from the first monochromatic beam (R1) towards the phosphor layer (12) and to reflect the converted light (L2) by the phosphor layer (12), - a protective layer (15) disposed opposite the phosphor layer (12) on the side opposite the first filter Dichroic (13). Figure for the abstract: figure 1

The invention relates to a method for defect analysis of a product, in particular a printed circuit board product, semiconductor wafer, galvanic cell or the like, with an inspection system (26) and an inspection system, wherein the inspection system comprises a projection device (32), an optical detection device (28) and a processing device, wherein white light is split into its spectral components by means of a spectrometer device of the projection device and a multichromatic light beam (37) formed from monochromatic light beams is projected onto a product at an angle of incidence β, wherein the optical detection device comprises a detection unit (29) with a camera (27) and a lens (28), wherein a multichromatic light beam (37) is reflected at the product in a detection plane (46) of the detection unit which extends transversely, preferably orthogonally to a product surface (38) of the product.which is captured by means of the camera, wherein the reflected multichromatic light beam is projected onto an image plane (49) of an image sensor of the camera, wherein height information of the product surface is derived by means of the processing device from a spatial distribution of the reflected multichromatic light beam in the image plane and a position of the optical detection unit relative to the product, wherein, within an interval of the spatial distribution of intensity values ​​of the reflected multichromatic light beam in the image plane extending over at least two pixels of the image sensor, the intensity value for each pixel is captured by means of the processing device, wherein, from the respective intensity values, a position of a median and / or mode of the spatial distribution in the image plane is determined by means of the processing device.

A method and an apparatus for improving the uniformity of exposure of a first periodic pattern in a photomask by a collimated beam of monochromatic light in a photolithographic system that prints a second periodic pattern into a photosensitive layer on a substrate that is in proximity to the photomask, include providing a plate that is composed of a material transparent to the beam and that has opposing surfaces that are parallel and separated by a thickness. The plate is arranged in the photolithographic system such that the beam illuminates the plate at an initial angle of incidence and the beam transmitted by the plate illuminates the photomask. The plate is rotated by at least one angle about at least one axis of rotation during the exposure such that the transmitted beam displaces translationally across the photomask.

The invention provides a novel terahertz spectrometer. The device mainly comprises a terahertz complex color light source system, a collimation module, a long-wave-pass optical filter, a terahertz tunable filter, a voltage supply module, a chopper, a controller, a to-be-detected sample, a focusing module, a terahertz detector, a data collector and a measurement and control system. The terahertz complex-color light source system is used for generating complex-color terahertz light beams, the collimation system is used for generating parallel light, the long-wave-pass optical filter is used for filtering long-wave-band components in the light source, the terahertz tunable filter and the voltage supply module are used for converting the complex-color light beams into monochromatic light beams, and the chopper and the controller are used for reducing measurement noise. The focusing module, the terahertz detector and the data collector are used for measuring the intensity of terahertz light beams, and the measurement and control system is used for controlling the whole system. Compared with an existing common terahertz spectrometer, the novel terahertz spectrometer has the advantages of being low in cost, high in vertical coordinate measurement accuracy (about 0.5%), high in measurement speed (about second magnitude) and the like. The novel terahertz spectrometer can provide a new scheme for the terahertz spectrum measurement field, the new scheme and an existing terahertz spectrum measurement method can form an angle potential, and a better terahertz spectrum measurement selection can be provided for many application scenes; and meanwhile, a novel terahertz time-resolved spectrum technology, a novel terahertz spectrum pumping detection technology and a novel terahertz spectrum imaging technology are expected to be created.

A system for performing surface analysis on a material, includes a pulsed electron source that forms a monochromatic beam of incident electrons; means for conveying the incident electrons to the surface of a sample of material, so as to form backscattered electrons, and the backscattered electrons to detecting means, the conveying means comprising at least one electron optical system; means for detecting the backscattered electrons; the pulsed electron source comprising: a source of atoms; a continuous-wave laser beam configured to form a laser excitation zone able to excite the atoms to Rydberg states; a pulsed electric field on either side of the laser excitation zone, the pulsed electric field being configured to ionize at least the excited atoms and to form a monochromatic beam of electrons.

The present application belongs to the technical field of spectral analysis optical instrument, disclose a kind of monochromator of controllable output light beam and programmable control method, to solve the problem of slow response, low precision, poor flexibility of existing monochromator relying on mechanical adjustment.The monochromator includes incident optical unit, spectrometer unit, imaging coupling unit and programmable control output unit arranged in order along the direction of light beam transmission;Incident optical unit is used to input matched polychromatic light beam, spectrometer unit is used to disperse polychromatic light into spatially separated monochromatic light beam, imaging coupling unit is used to focus and couple different wavelength light beam to corresponding light beam channel, and programmable control output unit is used to control the on-off, power and timing of each fiber channel independently.The present application has no mechanical moving parts, and can realize programmable output of monochromatic light with specific wavelength, specific power and specific timing, with fast response speed, high precision and high integration.

The invention relates to a light-emitting device (2) for a motor vehicle (1), the light-emitting device (2) being configured to project an image (Im) having at least one fixed-profile illumination zone onto a surface (3) located around the vehicle (1) or onto a surface (3) located inside a passenger compartment of the vehicle (1), the light-emitting device (2) being characterized in that the light-emitting device (2) comprises at least one light source (3), the light emitting device comprises: at least one light source (4) configured to generate a monochromatic light beam (F); at least one optical device (14) juxtaposed with the light source (4) such that the light beam (F) passes through the optical device (14), the optical device (14) comprising at least one super lens (15) configured to modify at least one characteristic of a wavefront of the light beam (F) in order to direct the light beam (F) into a propagation direction.

The invention relates to a lighting device (2) for a motor vehicle (1), the lighting device being configured to provide a high beam function and / or a low beam function, the lighting device (2) being characterised in that it comprises: · a plurality of light sources (4a, 4b, 4c) configured to each produce a monochromatic light beam (F); · an optical device (14) arranged facing the plurality of light sources (4a, 4b, 4c) such that the light beams (F) pass through the optical device (14), the optical device (14) comprising a plurality of metalenses (15a, 15b, 15c) configured to respectively modify at least one property of the wavefront of each light beam (F) so as to orient it in a propagation direction.

The invention relates to an inspection system (26) for analyzing defects in a product, the inspection system (26) comprising a projection device (32), an optical detection device (28) and a processing device, the projection device having a spectrometer member configured to split white light into its spectral components and project a multichromatic light beam (37) formed from monochromatic light beams onto a product, a detection unit (29) comprising an area scan camera (27) and an objective (28) being configured to detect the light beam (37) reflected on the product in a detection plane (46) perpendicular, preferably orthogonal, to a product surface (38) of the product. The detection unit has a dispersive or diffractive element (31) configured to project the reflected light beam onto an image plane (49) of the area scan camera, the processing device being configured to derive a height information of the product surface from a spatial distribution of saturation values of the reflected light beam in the image plane, a correction device being configured to correct a longitudinal chromatic aberration of the reflected light beam in the image plane.

The utility model provides an optical microscope. The optical microscope comprises: a light source assembly configured to output monochromatic light beams of different wavelengths; the objective lens is arranged on the light path of the monochromatic light beams with different wavelengths and is configured to focus the monochromatic light beams with different wavelengths at different positions in the vertical optical axis direction; the spectrum detector is coupled with the light source assembly and is configured to collect spectrum information of the light beam focused on the surface of the to-be-detected sample; and the displacement table is configured to bear a to-be-detected sample and adjust the vertical position of the to-be-detected sample according to the spectral information, so that the surface of the to-be-detected sample is located on the focal plane of the light beam with the target wavelength, and automatic focusing is realized. According to the optical microscope provided by the utility model, the automatic focusing device which is simple in structure, light and compact is provided, so that the automatic focusing problem of the microscope can be effectively solved; the detection precision and the detection efficiency of the microscope can be improved.

The invention discloses a navigation system for preoperative design and intraoperative monitoring and treatment of chronic osteomyelitis, and relates to the field of medical instruments, the navigation system comprises a vertical arm, a wound surface auxiliary positioning disc is arranged on one side of the top end of the vertical arm, and a camera is arranged in the middle of the wound surface auxiliary positioning disc; the lower surface of the wound surface auxiliary positioning disc is provided with a plurality of wound surface auxiliary positioning lamps, the multiple wound surface auxiliary positioning lamps are evenly arranged around the camera, and each wound surface auxiliary positioning lamp emits a single-color light beam. According to the system, the wound range and debridement key points of a patient can be distinguished, marked and navigated on the basis of the camera, a doctor can perform surgical operation more accurately, the surgical time and trauma are reduced, in addition, multi-degree-of-freedom control operation is achieved through the mechanical manipulator and the clamping assembly, the steel plate clamping and fixing action of bones is achieved, and the working efficiency is improved. The steel plate can be tightly attached to the bone, the operation efficiency can be improved, and the workload of doctors is relieved.

The invention relates to the technical field of optical microscopic imaging and spectrum detection, and discloses a hyperspectral microscope. The microscope comprises a microscope objective, an optical splitter, a tube lens, an image plane and an incident spectrum light source, the microscope objective adopts an apochromatic objective, the optical splitter is of a semi-transparent and semi-reflective structure, the tube lens is of an achromatic type, and the image plane integrates a signal processing circuit and a high-speed data interface. The incident spectrum light source has the capability of outputting monochromatic light beams with high spectral resolution; the equipment is equipped with an automatic control module and a calibration module, and core components are fixed on the same optical platform. The device overcomes the defects of chromatic aberration, light loss, poor stability and the like of existing equipment, realizes high-precision and high-efficiency acquisition of microscopic morphology and hyperspectral data of an observed object, and is suitable for microscopic spectral analysis in the fields of biomedicine, material science and the like.

The application provides an X-ray beam composite device and a diffraction equipment. A mirror assembly is configured to reflect an incident light beam into a first reflected light beam and a second reflected light beam. When a first monochromatic assembly and a second monochromatic assembly are both in a preset position, the first monochromatic assembly is configured to receive and guide the first reflected light beam to reflect into a first monochromatic light beam, and the second monochromatic assembly is configured to receive and guide the second reflected light beam to reflect into a second monochromatic light beam. The first monochromatic light beam and the second monochromatic light beam are arranged side by side to form a composite light beam. The application solves the technical problem that the detection efficiency is limited when the existing X-ray diffraction equipment measures through a closed X-ray tube, and achieves the technical effect of significantly improving the incident light flux to enhance the diffraction signal strength without increasing the power of the light source.

The utility model belongs to the technical field of physical measurement, and particularly relates to a solid and liquid refractive index comprehensive measurement device. The measuring device comprises a laser, a polarizer, a sample turntable, an angle meter, an optical detector, an optical power indicator, an optical guide rail, an optical sliding block and a reading displacement platform, the laser emits a monochromatic light beam; the polarizer is used for adjusting the polarization angle of a light beam emitted by the laser; the sample turntable is provided with a hollow encoder for measuring the rotating angle of the sample relative to the optical axis of the optical system; the optical detector is provided with a slit, converts the intensity of light into an electric signal, and can be mounted on a rotating arm of the sample turntable or an optical sliding block with a displacement platform; the optical power indicator detects an electric signal of the optical detector and indicates the intensity of light. The device is reasonable in structure and convenient to operate, and the use cost is effectively reduced.

The application provides a multispectral digital light processing projection system and a digital light illumination control method. The system comprises a multispectral digital light beam coupling module, a plurality of monochromatic light beam generating units for generating monochromatic digital light beams of different wavelengths, a light beam composite unit for integrating the optical paths of the monochromatic digital light beams to finally combine the light beams into a multispectral digital light beam, a multispectral digital light beam generating module comprising a microscope objective, the multispectral digital light beam being focused by the microscope objective to generate a multispectral digital structured illumination light field, and a multispectral digital light beam detection module comprising an image capturing device for detecting the scattered light of the multispectral digital structured illumination light field to monitor the multispectral digital structured illumination light field in real time. According to the multispectral digital light processing projection system and the digital light illumination control method provided by the application, the excitation light spectrum and the illumination light field digital processing can be simultaneously controlled.

The invention discloses a lighting module, an AR light machine and AR equipment, and relates to the technical field of AR optics. A light combination system in the illumination module is formed by gluing a plurality of prism blocks. The incident surface and the emergent surface of the light combination system are convex surfaces, so that a light beam is refracted by the two convex surfaces in sequence, and the divergent incident light beam gradually tends to be parallel under the action of two times of refraction, so that collimation is realized; and in the light combining system, the glued surfaces of the plurality of prism blocks are used for reflecting or transmitting the plurality of monochromatic light beams to the emergent surface of the light combining system, so that the light beams emitted by the plurality of monochromatic light sources are combined on the emergent surface of the light combining system after being reflected or transmitted, and finally, an illumination light beam is output. A light combining system formed by gluing a plurality of prism blocks is adopted to collimate and combine light beams emitted by a plurality of monochromatic light sources. The light combination system formed by gluing the plurality of prism blocks is an integrated element, so that the size of the illumination module is reduced, excessive types of devices are avoided, and the cost of the illumination module is reduced.

A method and device for monitoring the weakening of an interface between a layer and a substrate while a weakening anneal is being carried out. The method includes illuminating the first face of the substrate layer assembly with a monochromatic light beam in a first direction; measuring the intensity of the light beam scattered by the substrate layer assembly in at least a second direction, the second direction forming a non-zero angle with the first direction; and determining a state of weakening of the interface from the intensity.

A wafer inspection apparatus is provided. The wafer inspection apparatus includes a light source generating incident light, an input part slit passing some of the incident light, an input part condensing mirror focusing incident light that passes through the input part slit, a diffraction grating diffracting the incident light and spectrally dividing the incident light into monochromatic beams, an output part condensing mirror focusing the monochromatic beams and an output part slit passing some of the monochromatic beams.

A lighting device for projecting an image onto a surface located inside the passenger compartment of a motor vehicle. The lighting device for a motor vehicle is configured to project an image onto a surface located inside the passenger compartment of a motor vehicle. The lighting device is characterized in that it comprises: at least one light source configured to produce a monochromatic light beam (F); at least one optical device juxtaposed to the light source such that the light beam (F) produced by the light source passes through the optical device, said optical device comprising a metal lens configured to modify the wavefront of the light beam (F). Figure for the abstract: Fig. 2

The invention belongs to the field of polarization remote sensing spectral imaging, and particularly relates to an omni-directional multi-angle polarization spectral imaging system and method based on LED illumination modulation, and the system mainly comprises an illumination light generation module, an image collection module, a circular rail sliding module and a dual-body control module. Wherein the illumination light generation module is used for generating parallel light beams formed by a plurality of quasi-monochromatic light beams with different wavelengths; the image acquisition module is used for acquiring images of a target object in four polarization directions at different observation angles and different illumination wavelengths by a polarization camera, and meanwhile, the computer is used for solving and calculating the polarization degree and the polarization angle of the target object; the circular rail sliding module serves as a zenith angle adjustment execution unit, a stepping motor is used for driving the polarization camera to slide along a rail on the supporting frame, and when the polarization camera stays at a preset zenith angle, collection of polarization images is completed synchronously; the double-body control module serves as an azimuth angle adjustment execution unit, a servo motor is used for driving the hollow rotating platform and the turntable bearing to rotate, and the rotating angle and speed of the hollow rotating platform and the turntable bearing are in cooperative linkage with a zenith angle adjustment time sequence, so that the straight square tube is driven to rotate by 360 degrees, manual intervention is not needed in the whole process, and full-space azimuth angle coverage type polarization spectrum image acquisition is completed. Due to time sequence cooperation of the multiple LED light sources and efficient linkage of zenith angle-azimuth angle two-dimensional automatic adjustment, multi-wavelength and multi-angle collection of a target polarization spectrum can be achieved within a short time, and collection efficiency and data consistency are greatly improved.

The invention discloses a spatial light modulation diffraction light neural network on-line learning device and an imaging method. The device comprises the following steps: providing a monochromatic light beam by a laser device, and expanding the monochromatic light beam by a beam expanding lens; the HWP changes the polarization direction of the polarized light and modulates the polarization state of the light beam on the incident amplitude modulation array into p polarized light; the high-power reflector changes the light propagation direction and emits the light to the diffraction layer; the diffraction layer performs amplitude regulation and phase modulation on the light beams to obtain final output of the diffraction light neural network; the processing module collects the output light field image of each diffraction layer of the diffracted light neural network acquired by each CMOS and the current phase modulation parameter, and determines the phase modulation parameter of each diffraction layer according to a set loss function to adjust the gradient; and the control module loads the phase modulation parameters to the reflective phase type SLM of the corresponding diffraction layer. The scheme can adapt to a complex and changeable actual environment, the performance and adaptability of the diffraction light neural network are optimized, and wide application and development of the diffraction light neural network in the fields of high-performance calculation and artificial intelligence are promoted.

System comprising a photovoltaic receiver (4) mounted on a drone (1) and a ground station (2) configured to emit a monochromatic light beam (F1) towards the receiver (4) in order to power an electric battery (3) of the drone (1), particularly when the drone (1) is moving relative to the station (2). Figure for the abstract: Fig. 1

The present invention provides a contact image sensor. The contact image sensor includes: a frame; a light source structure disposed within the frame; a lens structure disposed within the frame, the lens structure being used for converging light beams; a plurality of photosensitive structures disposed within the frame, the photosensitive structures being located on one side of the lens structure, and the light source structure being located on the peripheral side of the lens structure; a dispersion portion for decomposing a composite light into a plurality of monochromatic lights, the dispersion portion being disposed within the frame, along the propagation path of the reflected light of the object to be scanned, the dispersion portion being located between the lens structure and the photosensitive structures, the dispersion portion having an incident light surface located on the extension line of the optical axis of the lens structure, and there being an included angle between the incident light surface and the optical axis of the lens structure, so that a plurality of monochromatic light beams formed after being decomposed by the dispersion portion are correspondingly incident into the plurality of photosensitive structures. The technical solution of the present invention solves the problem that the contact image sensor in the prior art is prone to color fringing phenomenon.

The invention relates to a system comprising a photovoltaic receiver (4) on board a drone (1) and a ground station (2) configured to emit a monochromatic light beam (F1) towards the receiver (4) in order to power an electric battery (3) of the drone (1), in particular when the drone (1) is moving relative to the station (2).

White light source (100) for fiber-based intraocular illumination with light of adjustable spectral composition, comprising: at least two light sources (10, 20, 30) for providing light beams of different colors, preferably with components substantially in the blue, green and red spectral range, wherein the red spectral range extends between wavelengths of about 640 nm to about 780 nm, the green spectral range between wavelengths of about 490 nm to about 570 nm and the blue spectral range between wavelengths of about 430 nm to about 490 nm; where the individual light rays are combined into a common light ray (W); wherein the white light source (100) is arranged to individually control the proportion of the individual light rays in the common light beam (W); wherein at least one of the light sources (10, 20, 30) is a laser-activated remote phosphor light source, LARP light source, (90) with a phosphor as a conversion element (98) and a laser diode (92) for exciting the conversion element (98) by means of an excitation radiation (S) emitted by the laser diode (92); wherein the white light source (100) each comprises a light source (10, 20, 30) for providing monochromatic light beams (R, G, B) with respective components essentially in the blue, green and red spectral range; characterized by the fact that the provision of the colored light beam (B) with components essentially in the blue or violet spectral range is carried out via a laser diode (92) emitting light essentially in the blue or violet spectral range, and via the laser diode (92) an excitation of a conversion element (98) for the provision of a monochromatic light beam (C) with components essentially in the cyan spectral range is additionally carried out, wherein the violet spectral range extends between wavelengths from about 380 nm to about less than 400 nm and the cyan spectral range extends between wavelengths from about 482 nm to about 494 nm; or the white light source (100) further comprises a LARP light source (90) as a light source (40) for providing a monochromatic light beam (C) with components essentially in the cyan spectral range, wherein the individual light beams (R, G, B, C) are combined into a common light beam (W) via the beam combiner (50), wherein the individual light beams (R, G, B, C) have separate light paths, the cyan spectral range extending between wavelengths of about 482 nm to about 494 nm.

A backlight for a liquid crystal display (LCD) includes: a waveguide configured to receive a collimated RGB beam; a plurality of color-selective diffractive gratings disposed on the waveguide, wherein each color-selective diffractive grating of the plurality of color-selective diffractive gratings is configured to out-couple a beam of a single color from the waveguide; and a beam in-coupler configured to adjust an angle of incidence into the waveguide with respect to the collimated RGB beam.