13 results about "Monochromatic beam" patented technology

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.

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.

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 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 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 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.

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.

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 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).