679 results about "Optical radiation" patented technology

Various wearable health monitoring devices are described herein. Some implementations include a housing including a front side and a back side configured to face tissue of the wearer when the device is worn; and a sensor assembly positioned by the back side of the housing. The sensor assembly can include emitters and detectors positioned on a surface of a substrate and a frame positioned adjacent to the surface of the substrate and configured to inhibit transmission of optical radiation through the frame. The frame can comprise an emitter chamber housing the emitters; and one or more detector chambers housing the one or more detectors.

The invention relates to the technical field of remote sensing monitoring, in particular to a remote sensing image ocean green tide monitoring method and system fusing physical prior and spatio-temporal evolution. The method comprises the following steps: acquiring a multi-modal remote sensing monitoring image; performing multi-modal feature extraction on the acquired image, wherein the multi-modal feature extraction comprises spectral reflectivity feature extraction, ocean dynamics feature extraction and feature alignment and unified representation; establishing a physical prior of a green tide characteristic wave band by using an ocean optical radiation transmission model; constructing a dynamic space-time diagram based on the extracted multi-modal features to obtain a node global feature vector and a dynamic adjacency matrix; carrying out adaptive graph convolution feature coding based on physical prior and a dynamic space-time diagram; through fusion of multi-spectral images of multiple platforms such as satellites and unmanned aerial vehicles and ocean dynamic data and combination of atmospheric correction and wave band resampling, consistency processing and high-precision extraction of multi-source features are realized, and comprehensiveness and reliability of green tide feature recognition are remarkably improved.

The invention relates to the crossing field of biothermodynamics and dynamic environment control, and discloses a space thermal microclimate multi-target regulation and control method, device and system, a medium and a product. The method comprises the following steps: acquiring physiological parameters (including effective dressing thermal resistance and local sweat gland density of posture correction) of a passenger, environment space-time parameters and light environment parameters through a biological characteristic sensor, an environment sensor and an optical sensor; constructing a dynamic human body thermal comfort model library, and adopting a feature coding-parameter decoding mechanism to match a target thermal comfort model; generating a hierarchical regulation strategy based on the difference between the local comfortable temperature and humidity interval and the real-time thermal environment sensing parameter; and the refrigerant circulation system, the fluid circulation system and the optical radiation system are cooperatively controlled to realize local microclimate regulation and control. According to the method, the problems of inaccurate thermal comfort modeling and low multi-system cooperation efficiency in a transient environment are solved, the energy efficiency ratio is improved, and the comfort of passengers in a cabin is remarkably improved.

The invention relates to the technical field of infrared sensors, in particular to a monolithic integrated MEMS out-of-plane thermopile chip and a preparation method thereof, and the thermopile chip comprises a substrate, and a bottom electrode, a thermocouple array, a top electrode and an optical radiation absorption layer which are sequentially arranged on the substrate; the thermocouple array is vertically arranged on the bottom electrode; the thermocouple array comprises a plurality of thermocouple pairs, and each thermocouple pair comprises an N-type thermocouple and a P-type thermocouple; the N-type thermocouple and the P-type thermocouple form a current and heat flow loop in an electric series connection and heat parallel connection mode. According to the invention, the bismuth telluride-based thermoelectric material with low thermal conductivity and high Seebeck coefficient difference is used as the thermocouple material of the out-of-plane thermopile chip, the heat conduction path of the out-of-plane thermopile chip is more direct, the temperature difference in the vertical direction can be directly utilized, and the higher response speed and high sensitivity are expected to be realized due to the more efficient thermal gradient.

The present invention relates to a device for measuring a line current. Said device comprises at least three sensor elements having paramagnetic centres, a pump-radiation source, an optical system, and at least three photodetectors which function as part of receiving systems and are each associated with a sensor element. In addition, the device contains two magnetic field sources which generate different bias magnetic fields for each sensor element. The pump-radiation source emits pump radiation into the optical system, which distributes the pump radiation to the sensor elements and thereby irradiates the paramagnetic centres with the pump radiation. These centres emit fluorescence radiation, the intensity and phase shift of which depend on the AC drive signal of the evaluation and control device and on the magnetic flux density acting upon them. The fluorescence radiation is separated from the pump radiation by the optical system and guided onto the photodetectors. The evaluation and control device generates a single-frequency sinusoidal AC drive signal having a frequency of 22 MHz (-4 MHz / +7 MHz), or within a range of 18 MHz to 29 MHz. The lock-in amplifiers are coupled to the sensor elements and evaluate the output signal of the photodetectors with respect to the AC drive signal in order to produce measurement values. Based on these measurement values, the evaluation and control device determines an estimated value for the magnitude of the line current in the line.

The invention relates to the technical field of nervous system dysfunction, in particular to a nerve regulation and control system for degenerative disease treatment based on multi-modal physiological feedback, which comprises a central processing unit, an optical radiation applicator, a mechanical vibration applicator, an integrated biological signal sensing array and a man-machine interaction module, cooperative stimulation is applied by using a multispectral light source and a broadband vibrator, and multi-dimensional physiological signals such as heart rate variability, myoelectricity, galvanic skin and the like are monitored in real time through a sensor array. A multi-parameter adaptive control algorithm built in the central processing unit can dynamically and intelligently adjust stimulation parameters based on the feedback signals to form an accurate personalized treatment closed loop. Meanwhile, the safety monitoring module based on the biological thermal model ensures the safety boundary of the treatment process. According to the invention, intelligent, self-adaptive and non-invasive treatment of nerve dysfunction is realized.

An optoelectronic apparatus includes an array of emitters configured to emit beams of optical radiation. Refractive optics focus the emitted beams with a first optical power. An optical metasurface splits the focused beams to form a pattern of spots and applies a vergence to the spots with a second optical power so as to project the pattern of spots toward a target.

The present invention relates to the technical field of inorganic multi-color coatings, and specifically relates to a preparation method and apparatus for an inorganic multi-color coating, and a use. The preparation method comprises the following raw materials: base paint: water, cellulose, a defoaming agent, a dispersing agent, a wetting agent, a luminescent material, an inorganic hybrid emulsion, an odorless pH regulator, and a bactericide; granulation liquid: water, a bactericide, xanthan gum, protective colloid powder, an odorless pH regulator, nanocellulose, and a defoaming agent; and a continuous phase emulsion: an inorganic hybrid emulsion, a bactericide, inorganic gel, deionized water, an odorless pH regulator, a thickening agent, and a defoaming agent. In the present invention, a mixture of CaAl2O4 calcium aluminate and BaAlO4 barium aluminate is added to serve as a luminescent material, the luminescent material can absorb and store solar energy by means of a specific mode when exposed to sunlight during the daytime, and at night, the internally stored energy is converted into optical radiation to be released, thereby realizing a light-emitting effect and realizing the luminous function of the coating.

The invention provides a light generating system (1000) comprising one or more light generating devices (100), wherein each of the one or more light generating devices (100) are configured to generate device light (101), wherein the light generating system (1000) is configured to generate system light (1001) comprising the device light (101) of at least one light generating device (100), wherein the light generating system (1000) is configured to provide (in an operational mode) system light (1001) according to the following characteristics: (A) during a first time period t1 the system light (1001) is white light having a radiant flux Φ11 in a first wavelength range and a radiant flux Φ12 in a second wavelength range; (B) during a second time period t2 the system light (1001) is light having a radiant flux Φ21 in the first wavelength range and a radiant flux Φ22 in the second wavelength range; (C) during a third time period t3 the system light (1001) is light having a radiant flux Φ31 in the first wavelength range and a radiant flux Φ32 in the second wavelength range; (D) Φ21<Φ11 and Φ31<Φ11; (E) Φ22>Φ12, and Φ32<Φ12; (F) t2 is selected from the range of 1 second-30 minutes; and t1>t2; and (G) the first wavelength range is 380 nm-λ1 and the second wavelength range is λ1-780 nm, wherein λ1 is selected from the range of 485-550 nm.

The invention discloses a high-power organic light emitting diode. The organic light-emitting material suitable for a high-power organic light-emitting diode is obtained by testing the triplet exciton lifetime of the organic light-emitting material. The high-power organic light-emitting diode comprises an optical radiation layer, the optical radiation layer comprises an organic light-emitting material, and the triplet exciton lifetime of the organic light-emitting material is smaller than or equal to 1 microsecond. The high-power organic light-emitting diode provided by the invention has an extremely low efficiency roll-off effect, and when the external quantum efficiency is reduced to half of the maximum value, the driving current density of the device is greater than 3 amperes / cm < 2 >; the laser has the characteristics of high radiation exitance (greater than 15 milliwatts / cm < 2 >), continuously adjustable spectrum, simple structure, long service life, capability of solution processing, capability of large-area processing and the like.

The invention belongs to the technical field of narrow-band optical radiation imaging, and particularly relates to a narrow-band EUV and BEUV radiation imaging device based on a nano polycrystalline hexagonal boron nitride scintillator. The imaging device is composed of a nano polycrystalline hexagonal boron nitride scintillator plated with Zr, Mo or Nb metal, a high-precision camera, a vacuum interface flange and a shielding shell, and narrow-band selective imaging can be achieved in the wave band of 6-14 nm. The radiation imaging device has high sensitivity, narrow-band selectivity and excellent radiation resistance to 13.5 nm EUV light and 6.7 nm BEUV light, and compared with a traditional YAG-based imaging device, the radiation imaging device has remarkable advantages. The invention provides an innovative solution for high-performance EUV and BEUV radiation imaging, and has important application value in the field of EUV and BEUV beam diagnosis.

Method for generating a porous injectable scaffold that includes providing a liquid composition of 2 phases at a temperature below 25° C., of Newtonian behavior, where the composition comprises:a liquid dispersant phase at room temperature formed by a gelatin with a low melting point, less than 15° C., functionalized with methacryloyl or methacrylamide groups; and a photoinitiator;and a dispersed phase, of microdroplets or beads in solid state, of a gelatin solution with a melting point greater than 25° C.;initiating the polymerization of the dispersing phase by light radiation; raising the temperature to 35-40° C. and allowing melting of the dispersed phase; and obtaining a porous scaffold.The formed porous scaffold and its use as a biological support for tissue regeneration / generation; as a biological matrix as a support for cells, for cell invasion; as an acellular biological matrix, a biological matrix as a mechanical support and / or a biological matrix for active components.

A system for drying a battery electrode coating includes two laser diode arrays and a laser module. Each laser diode array emits multi-beam laser radiation to an edge region including a respective edge of a coating lane deposited on a metal foil. The laser module emits a diverging laser beam to an interior area of the coating lane between the two edges. The intensity distribution of the diverging laser beam at the coating lane spans a gap in the widthwise dimension between respective intensity distributions of the multi-beam laser radiation from the two laser diode arrays. The use of laser diode arrays to perform the edge drying allows for tailoring the intensity distribution of the combined laser irradiation to dry the coating lane without over-drying and delaminating the edges. The use of a single, diverging laser beam in the interior area allows for optimizing affordability and energy efficiency.

A semiconductor tunable ring laser including a laser cavity having a closed loop optical path, and an optical filter that is arranged within the laser cavity. The optical filter includes a first MZI-based tunable frequency filter section including a 1×3 MMI input splitter providing a first non-zero fraction, T1, of optical radiation at a first optical output port of the 1×3 MMI for wavelength locking and / or power monitoring purposes outside of the laser cavity, a second fraction, T2=(1−T1) / 2, of optical radiation at a second optical output port of the 1×3 MMI, and a third fraction, T3=(1−T1) / 2, of optical radiation at a third optical output port of the 1×3 MMI. A PIC including the semiconductor tunable ring laser, and to an opto-electronic system including such a PIC.

The invention relates to an optical radiation source. It is an object of the invention to enable the generation of laser radiation with (ultra) narrow linewidth and to provide an optical radiation source which is robust and simple to control. The optical radiation source of the invention comprises: a laser source having a gain medium and an internal cavity configured to generate laser radiation at multiple frequencies separated by a first free spectral range, at least one external cavity in optical communication with the laser source, the external cavity having a plurality of resonance modes within the gain bandwidth of the laser source, wherein the resonance modes are separated by a second free spectral range which is different from the first free spectral range, wherein the external cavity is configured to act as a frequency-selective reflector to selectively reflect laser radiation generated by the laser source back into the gain medium, thereby causing the gain medium to lase predominantly at only one frequency, and wherein the optical radiation source is configured to couple a portion of the generated laser radiation out from the internal cavity and / or from the external cavity.

The invention discloses a star sensor fixed star detection capability analysis method based on a polarization degree image, and belongs to the technical field of star sensor detection. In order to solve the problems of few detection means and low utilization rate of sky light radiation information during star observation of a near-earth space all-time star sensor, the method comprises the following steps: constructing a star sensor integrated with a focal plane micro-polarizer array, and acquiring four gray star maps through short exposure by using the star sensor integrated with the focal plane micro-polarizer array; a star sky Stokes vector diagram is calculated; calculating star sky polarization degree distribution to obtain a polarization degree star map; constructing a fixed star polarization signal-to-noise ratio calculation formula in the polarization degree star map by utilizing a physical process of converting radiation energy into polarization degree; the calculation formula calculates the polarization signal-to-noise ratio of the fixed star in the field of view; and comparing the polarization signal-to-noise ratio of the fixed star with a signal-to-noise ratio threshold value detected by the near-earth space all-time star sensor, and judging the detectable capability of the fixed star in the polarization degree star map. According to the method, the robustness of the near-earth space all-day star-sensitive technology to a complex environment is improved.

The invention relates to the field of sun tracking sensing devices, and aims to solve the problems that a light radiation detection system is delayed in response and high in analysis complexity due to indirect calculation or image analysis for obtaining a sunlight radiation angle, and accumulative errors exist under a dynamic illumination condition. According to the solar tracking sensing device and method for realizing dynamic scanning of the light radiation quantity, measurement and direct output of the light radiation quantity and the angle are realized through rotation of the two-axis holder, and the maximum value of the light radiation quantity and the angle value corresponding to the light radiation quantity of a to-be-measured site can be obtained by directly using the device disclosed by the invention at the to-be-measured site; the light radiation quantity and the corresponding angle are directly output, dependence on continuous light intensity distribution is reduced, the problems that dynamic response of a sun tracking device in the prior art is delayed, and the light radiation quantity and the corresponding angle cannot be directly output are solved, and the device can be widely applied to the photovoltaic panel fixing and installing process and a dynamic angle adjusting system of a photovoltaic panel.

The invention relates to the technical field of visual inspection, in particular to an LED display screen surface flaw online detection system and method, and the method comprises the steps: carrying out the optical scanning of the surface of a display screen, and capturing an original optical radiation data flow; converting the original optical radiation data stream into a standardized optical data stream based on the acquired ambient light parameter and the target brightness parameter; converting the optical characteristics of each region in the standardized optical data stream into feature vectors; calculating the difference degree between the feature vector and a flawless standard vector, constructing a defect probability graph, and positioning a flaw candidate region; extracting the multispectral optical feature vector and the calibration data vector of the photometric physical property, and fusing to generate a composite feature vector; analyzing the composite feature vectors, determining flaw types and severity levels, and generating a comprehensive flaw analysis report and a control signal for controlling automatic operation of the production line. By analyzing optical signals on the surface of the display screen, high-efficiency, high-precision and high-robustness online detection of surface flaws is realized.

A phase generated carrier interrogator comprises: a composite multicarrier synthesizer operable to generate at least one laser modulated carrier signal for modulating a laser radiation source; a power monitoring branch operable to measure a power metric of the laser radiation source; a wavelength reference branch comprising a wavelength reference for wavelength stabilization of the laser radiation source and a wavelength reference detector for measuring the wavelength reference to obtain a wavelength reference signal; and a signal processing module. The signal processing module is operable to: estimate a monitoring power carrier delay, the monitoring power carrier delay describing a propagation delay of the power monitoring signal in a laser power monitoring signal path; and estimating a wavelength reference excess delay using the estimated monitored power carrier delay, the wavelength reference excess delay describing a difference between the wavelength reference power carrier delay and the monitored power carrier delay, the wavelength reference power carrier delay describing a propagation delay of the wavelength reference signal in the wavelength reference branch.

A monitoring device (46) is used to monitor an EUV collector of a projection exposure system. A detector assembly (38) of the monitoring device (46) has at least one stray light detector (47). i ) for detecting stray light radiation (20) with a stray light wavelength that differs from the useful light wavelength of useful light (3) generated by an EUV light source (2) by at least 10%, wherein the stray light radiation (20), originating from a component of the EUV light source, is reflected at a collector surface of the EUV collector. A detection component (37; 32) of the detector device (38) can be arranged in an illumination optics array (40) that is optically conjugated to a collector array of the EUV collector. Due to the monitoring, an increased collector efficiency can result.

The invention relates to the technical field of welding quality detection, and discloses an online detection system for welding quality. A welding area monitoring device of the system is arranged around a working area of welding equipment and used for capturing an optical radiation signal and a heat distribution signal in the welding process; the multi-source data acquisition device is connected with the welding area monitoring device and synchronously acquires welding current fluctuation data, arc voltage change data and wire feeding speed data; the real-time feature extraction device receives the multi-source data and constructs a welding process dynamic feature set; the dynamic analysis device generates welding quality evaluation parameters according to the dynamic feature set; and the output control device generates a welding process parameter adjusting instruction based on the welding quality evaluation parameter. The system realizes real-time detection and dynamic control of welding quality, improves welding production efficiency and quality stability, and is suitable for various industrial welding scenes.

The invention discloses a light source system capable of continuously adjusting an attenuation ratio, and belongs to the technical field of optical radiation measurement and photoelectric detection. In order to solve the problems of wavelength dependence, discontinuous adjustment, spectrum distortion and the like existing in an existing light intensity adjusting scheme, a combined structure of an integrating sphere and a diaphragm cylinder is adopted, and the device comprises a light source, the integrating sphere with the high-reflection inner wall, a front-end adjustable diaphragm, the diaphragm cylinder with the extinction inner wall and a rear-end adjustable diaphragm. Continuous attenuation of output light intensity in a predetermined dynamic range is realized by adjusting the apertures of the front and rear diaphragms, the lower limit of attenuation ratio meets the requirement, and the dynamic range can reach more than three orders of magnitude. The system uses the integrating sphere to form a stable Lambert light source, the attenuation process depends on geometric parameters, spectral distribution and spatial uniformity basically remain unchanged, and the non-uniformity of a light-emitting surface is not greater than 5%. The invention further provides a calibration method, high-precision attenuation prediction is achieved through detector measurement and view factor model fitting, and the calibration method is suitable for weak cursor calibration, detector linearity testing and other applications.

The invention discloses a multi-channel LED spectrum adjusting method and system. The method comprises the steps that a light source containing three LED channels is configured; wherein the first LED channel light source outputs short-wave purple light of 400-430 nm, and a purple light chip packaged by packaging glue containing first fluorescent powder is adopted; the second LED channel light source outputs full-wave-band white light of 400-700 nm, and a purple light chip packaged by packaging glue containing second fluorescent powder is adopted; the third LED channel light source outputs long-wave red light of 700-780 nm, and a blue light chip packaged by packaging glue containing third fluorescent powder is adopted; collecting spectral data of a target area through a four-node cross-distributed spectral sensor to obtain a current spectrum; determining a deviation value between the current spectrum and a preset template; and dynamically adjusting the three LED channel light sources according to the deviation value. The radiation intensity of short-wave purple light and long-wave red light can be remarkably improved, the color rendering index is optimized, and the high-precision illumination requirement is met.

The invention relates to the technical field of fire early warning, in particular to a fire early warning system based on the Internet of Things, which comprises a fire early warning center, a data acquisition unit, a fire distinguishing unit, a node verification unit, a radiation verification unit, a fire visual unit and an early warning visual unit, according to the invention, the environment information is collected through a plurality of fire monitoring devices, the comprehensive coverage and real-time monitoring of a target area are realized, the fire hazard can be found in time, the accuracy of fire judgment is improved, the situations of false alarm and missing alarm are reduced, and meanwhile, the fire authenticity analysis of two dimensions of node request verification and optical radiation verification is accompanied, so that the accuracy of fire judgment is improved. The method is advantaged in that misjudgment caused by a single factor is reduced, fire hazard early warning accuracy is further improved, information feedback visual analysis is carried out from angles of fire hazard diffusion paths, diffusion grades and the like, information of fire hazard diffusion directions, fire hazard positions and the like can be visually known based on the acquired visual fire hazard model, and targeted fire hazard emergency response decision making is further facilitated.

The handpiece comprising a gripping structure, a seat for a interchangeable optical assembly and a cooling device of the epidermis. The cooling device comprises a cooling body of the epidermis adapted for a laser beam for treating the skin to pass through. The cooling body comprises a rear surface, an opposite front surface for contact with the epidermis, and a lateral surface extending from the front surface to the rear surface. The device further comprises a sleeve, in which the cooling body is housed. The sleeve comprises an inner surface at least partially surrounding the lateral surface of the cooling body. A circulation chamber of a cooling fluid is defined between the inner surface of the sleeve and the lateral surface of the cooling body.

The application discloses a kind of molecular imprinting cerium oxide / biochar composite material and its preparation method and application, comprising: cerium oxide / biochar composite material and solvent are mixed, ultrasonic, obtain first solution;At room temperature, first solution and imprinting polymer are mixed, stirring, obtain first mixture, imprinting polymer is the mixture of template molecule and functional monomer, template molecule is p-chlorophenol, and functional monomer is methyl methacrylic acid;First mixture is purged with N2, under sealed, ultraviolet light radiation polymerization 12-24h, obtain second mixture, second mixture is centrifuged, washes to detect no template molecule, clean, dry, obtain molecular imprinting cerium oxide / biochar composite material.Molecular imprinting cerium oxide / biochar composite material as catalyst in the application of photocatalytic removal of p-chlorophenol in water body shows higher specific selectivity and catalytic activity, and the removal efficiency of p-chlorophenol reaches 90%, with good anti-interference in complex water environment.

The invention discloses a long-wave infrared spectrum abnormal data detection method and a storage medium, according to the method, abnormal judgment is carried out on spectrum data from a data spatial domain and a transformed frequency domain, and spectrum data abnormal detection is carried out through spatial domain and frequency domain joint analysis by utilizing physical characteristics of long-wave infrared light radiation. According to the technical scheme, the method comprises the following steps: performing Fourier transform on infrared spectrum data, and calculating an average energy value of a specific frequency band; meanwhile, peak value characteristic information of the data is extracted, and a peak value detection statistical array is constructed; and setting a multi-level threshold value judgment system which comprises a frequency domain average energy threshold value, an energy layering threshold value and a peak value detection threshold value, and realizing abnormal data identification through double-feature comprehensive judgment. Compared with a traditional z-score posterior detection method, the method has the advantage of being high in real-time performance, abnormity can be recognized in real time in the data collection process, post-processing analysis does not need to be conducted depending on a large amount of historical data, and the detection efficiency and practicability are effectively improved.

The invention is applicable to the technical field of battery devices, and provides a battery device and electric equipment, the battery device comprises a shell part, and the shell part is used as an appearance part of the battery device. The shell part comprises a base body and a protective layer structure. The base body has a first outer surface facing an external environment of the battery device. The protective layer structure is arranged on the first outer surface. The protection layer structure comprises a heat insulation layer, a reflection layer and a pigment layer. The heat insulation layer is arranged on the first outer surface. The reflecting layer is arranged on the side, away from the first outer surface, of the heat insulation layer and used for reflecting infrared radiation and transmitting visible light. The pigment layer is arranged between the heat insulation layer and the reflection layer. The heat insulation layer obstructs heat transmission and reduces the influence of high temperature or low temperature of the external environment on the shell part and the interior of the shell part. The pigment layer colors the first outer surface. The reflecting layer reflects infrared light radiation to the external environment, the probability that heat radiation of infrared light is transmitted to the pigment layer is reduced, the probability that the pigment layer is decomposed due to the heat effect of the infrared light is reduced, and the color changing probability of the pigment layer is reduced.

The invention provides a radiation generating system comprising a radiation unit, wherein the radiation unit comprises a light source, a first collimator, and an optical arrangement, wherein: (a) the light source is configured to generate light source radiation having a first spectral power distribution having an intensity I1,1 at a first wavelength λ1 and an intensity I1,2 at a second wavelength λ2; (b) the first collimator is configured in a light receiving relationship with the light source, wherein the first collimator is configured to collimate the light source radiation into collimated light source radiation; (c) the optical arrangement is configured downstream of the first collimator and is configured to convert the collimated light source radiation into arrangement radiation; wherein the arrangement radiation is collimated relative to the collimated light source radiation; wherein the optical arrangement comprises a second collimator and an optical filter, wherein: (i) the second collimator is configured downstream or upstream of the optical filter; (ii) the optical filter has a higher transmission for the first wavelength λ1 than for the second wavelength λ2 when irradiated under a predefined angle; (iii) the first wavelength λ1 is selected from the range of 190-230 nm and the second wavelength λ2 is selected from the range of 100-190 nm or 230-280 nm; and (iv) the second collimator is at least partly defined by a plurality of light radiation transmissive channels, wherein the radiation transmissive channels are defined by channel walls which comprise a light absorbing material, wherein the light absorbing material is configured to absorb at least part of the collimated light source radiation received by the light absorbing material.

Method for manufacturing an optical component (1) using laser radiation, comprising the following process steps: - Generation of a structure in the material of the component (1) which gives the component (1) an optical functionality, wherein the optical functionality of the component (1) is that of an optical grating, in particular a fiber Bragg grating, an aperiodic fiber Bragg grating, a long-period grating or a bulk Bragg grating, - Determination of deviations of the generated structure in the material of the component (1) from specified target parameters, wherein the specified target parameters determine a central operating wavelength and / or a dispersion of the component (1), - Modification of the refractive index in the material of the component (1) by means of laser beams in a pre- and / or post-processing step, i.e. before or after the creation of the structure, in order to correct the deviations from the specified target parameters, characterized in that in the pre- and / or post-processing step a beam shaping of the laser radiation directed on the component (1) takes place in order to generate a spatially variable modification of the refractive index in the material of the component (1), wherein the beam shaping is carried out by means of an adaptive optics (4) which dynamically controls the wavefront and intensity profile of the laser radiation in order to flexibly address local deviations in the material of the component (1) individually.