2554 results about "Light filter" patented technology

The invention discloses a light aging test instrument, which includes a test cavity, a bottom baseplate, the top cover board which is fixed on the bottom and the top of the test cavity respectively. A lamp socket which fitted with a lamp is right on the centre of the base plate, the photo permeable holes are set at the same height on the side wall of the test cavity. A visual light narrow wave band filter sheet is in the photo permeable hole, and the sample trough is fitted on the photo permeable hole. The test instrument has a compact structure, easy to disassemble and assemble, inflexible for employ, with low cost of the production.

The invention provides an imaging method and system based on a polarization imaging lens and visual collaborative optimization, and a medium, and the method comprises the steps: integrating a four-way polarization filter array on the surface of an imaging sensor, and synchronously collecting a four-channel polarized light intensity image through single-frame exposure based on the imaging sensor; obtaining a three-channel RGB image, and inputting the four-channel polarized light intensity image and the three-channel RGB image into a polarization-RGB fusion neural network; polarization features and RGB features are extracted, heterogeneous information coupling optimization is carried out, and fusion features are obtained; constructing a polarization-color joint decoding network, carrying out polarization and RGB information collaborative decoding on the fusion features, training a polarization decoding process and a material classification task together based on an end-to-end joint optimization strategy, and outputting a material classification result; high-efficiency acquisition of original polarization information on a hardware level is guaranteed through the polarization filtering array; and an end-to-end joint training strategy is adopted to realize optimal decoupling and fusion of perception information.

The utility model discloses a suction jig, and discloses a detection device and a carrying device with the suction jig, and the suction jig comprises a suction head which is provided with a suction part, the suction part is used for sucking an optical filter, and the suction part is provided with a containing groove; the background piece is arranged in the containing groove, the background piece is provided with a background face, the surface area of the background face is larger than that of the light sensing area of the light filter, and when the light filter is sucked, the background face is opposite to the light filter so as to cover the light sensing area of the light filter. The suction head can suck the optical filter and move the optical filter to the foreign matter inspection position and the carrying position, and the background is used as the inspection background of the optical filter, so that the foreign matter detection rate is increased.

The invention relates to a dual-waveband medium-long wave infrared optical filter based on a germanium / zinc sulfide asymmetric film system and a preparation method of the dual-waveband medium-long wave infrared optical filter. The dual-waveband medium-long wave infrared optical filter comprises a front film system, a substrate and a back film system, the front film system and the back film system are formed by alternately overlapping germanium layers and zinc sulfide film layers; the average transmittance of the infrared optical filter in the wave band of 3800 nm to 4800 nm and the wave band of 8000 nm to 10000 nm is not lower than 91%. According to the two-waveband medium-long wave infrared optical filter disclosed by the invention, 3800 to 4800 nm amp is realized; according to the infrared filtering window, the light energy of medium waves and long waves of 8000-10000 nm is improved, the luminous flux of other wavebands is well inhibited, the technical problem of the infrared filtering window in some special infrared spectrum detection systems is solved, and a new scheme is provided for infrared application.

The invention belongs to the technical field of visible light detection, and aims to realize accurate detection of multicolor visible light and monolithic integration of a multi-wavelength receiver. The invention provides a fully-integrated multicolor visible light detector based on a sub-wavelength polycrystalline silicon grating, which comprises three detectors capable of selectively detecting blue, green and red signals respectively. The principle is as follows: a one-dimensional sub-wavelength polycrystalline silicon grating in the multicolor detector is embedded in an upper SiO2 layer and a lower shallow trench isolation region to form a dielectric waveguide structure of which the middle is a high-refractive-index medium and the periphery is a low-refractive-index oxide layer. The period and the grating width of the sub-wavelength grating are changed, so that the incident polarized light and the sub-wavelength periodic structure are strongly coupled to cause a guided-mode resonance effect, and the sub-wavelength grating can be applied to a transmission optical filter. The size and the cost of the multicolor visible light communication system can be effectively reduced, and the data transmission rate of the system is greatly improved.

The invention belongs to the technical field of photoresists, and relates to a wide-color-gamut yellow dye for a color filter, a synthesis method of the wide-color-gamut yellow dye, a green photoresist and a preparation method of the green photoresist. The green photoresist is prepared from the following raw materials in parts by weight: 4 to 8 parts of green pigment, 3 to 8 parts of resin, 3 to 10 parts of acrylic monomer, 0.5 to 2 parts of photoinitiator, 0.2 to 0.4 part of auxiliary agent and 75 to 85 parts of organic solvent. The synthesized yellow dye has good photoresist system adaptability and high molar absorption coefficient, and meanwhile, due to the fact that acrylic acid is grafted, acrylic acid on the yellow dye has carbon-carbon double bonds, under the action of a photoinitiator, after bond breaking, the yellow dye can react with resin or an acrylic monomer and is cured in a film, and the yellow dye has good chemical resistance.

The invention relates to a wide-temperature-range stable dual-band infrared optical filter for an extreme environment and a preparation method thereof. The wide-temperature-range stable dual-band infrared optical filter comprises a front film system, a substrate and a back film system, the front film system and the back film system are formed by alternately overlapping germanium layers and zinc sulfide film layers; the drift distance of the central wavelength of the passband of the infrared optical filter is less than 0.05% within the temperature range of-120 DEG C to + 85 DEG C. According to the invention, the internal stress of the film layer is obviously reduced through the optimized film system design, so that the excellent stability of the optical performance in an extreme temperature environment is realized, the technical problem that some special infrared spectrum detection systems work in a wide temperature range is solved, and a reliable solution is provided for high-end aerospace infrared application.

The invention relates to the technical field of blue glass optical filter processing, in particular to a polishing device for a blue glass optical filter and a polishing method of the polishing device. Comprising a C-shaped pedestal, an electric push rod, a T-shaped movable plate and an auxiliary connecting assembly, the auxiliary connecting assembly comprises a connecting frame, a mold plate, a partition plate, a first air cylinder, an extrusion plate, an overturning component, a grinding component, a dust collection component and a supporting component, and during use, the mold plate is placed in the connecting frame, and the first air cylinder is started to abut against the extrusion plate to move inwards; then an electric push rod is started to drive a T-shaped movable plate to move downwards, and a grinding component is driven to polish one face of the blue glass optical filter; the overturning component rotates in the round hole through the first air cylinder to drive the mold plate to overturn. The electric push rod drives the grinding component again to polish the other surface; by turning over the blue glass optical filter in the mode, the production efficiency of the blue glass optical filter can be effectively improved, and workers can conveniently collect the blue glass optical filter.

The invention provides a silicon carbide single-photon detector and a preparation method thereof, and relates to the technical field of silicon carbide solar blind detection. The silicon carbide multiplication layer and the aluminum gallium nitrogen absorption layer of different material systems are sequentially grown on the silicon carbide substrate, and the side, far away from the silicon carbide substrate, of the aluminum gallium nitrogen absorption layer is the light incidence side, so that incident light firstly passes through the aluminum gallium nitrogen absorption layer and is excited to generate current carriers, and then the current carriers are multiplied by the multiplication layer to generate internal gain, so that the light emitting efficiency is improved. The detection sensitivity is improved. The forbidden bandwidth range of the aluminum gallium nitrogen absorption layer coincides with the photon energy range of the solar-blind wave band, so that the aluminum gallium nitrogen absorption layer only absorbs the solar-blind wave band and transmits the wave band outside the solar-blind wave band, absorption of photons outside the solar-blind wave band when a silicon carbide absorption layer is adopted is avoided, light filtering in a light filter mode is also avoided, and the detection responsivity is improved.

According to the silicon-based OLED micro display screen, an OLED organic material layer emits white light under electric driving, intelligent judgment is performed according to display content, an optimal working mode is automatically selected, when high-saturation pure color needs to be displayed, the mode is switched to a pure color transparent mode, at the moment, a super-surface optical separation layer keeps the transparent characteristic, and the display quality is improved. The white light is directly transmitted to the color film unit with the corresponding color; when mixed colors need to be displayed, a mixed color separation mode is started, incident white light is separated into red primary light, green primary light and blue primary light according to visible spectrums, the light is accurately guided to the corresponding RGB color film units according to a preset optical path, finally, the color light which is accurately separated and guided is output through the corresponding color films, and finally a high-brightness and low-power-consumption full-color picture is synthesized. The super-surface optical separation layer is additionally arranged between the white light OLED light-emitting layer and the color filter, so that the display optical utilization efficiency is greatly improved.

The invention discloses a circumferential liquid film surface wave observation device and method based on a miniature high-speed camera. The circumferential liquid film surface wave observation device comprises a centrifugal nozzle, a laser, the high-speed miniature camera and a synchronizer, the centrifugal nozzle can spray a conical liquid film; the high-speed miniature camera is located at the central gas nucleus of the conical liquid film, and the optical axis coincides with the axis of the centrifugal nozzle; a narrow-band optical filter is arranged on the surface of an optical lens of the high-speed miniature camera; the laser can emit plane laser perpendicular to the axis of the centrifugal nozzle to the conical liquid film; wherein the wavelength of the planar laser is equal to the central wavelength of the narrow-band optical filter; and the synchronizer is respectively connected with the laser and the high-speed miniature camera. According to the method, a frozen instantaneous circumferential liquid film form without background interference can be obtained, a surface wave growth factor and a breaking critical criterion can be accurately quantified, and the development and evolution process of the circumferential surface wave of the liquid film is further obtained through high-speed shooting.

The invention relates to the related technical field of carbon dioxide detection, in particular to a carbon dioxide leakage detection device which comprises a gas chamber, an infrared light source, an optical filter and a detector. A first-stage connecting lug plate and a second-stage connecting lug plate are integrally formed at ports of the front shell and the rear shell respectively, the first-stage connecting lug plate and the second-stage connecting lug plate are positioned and connected through a first-stage bolt and a first-stage nut, and a mounting bracket is fixedly mounted on the back surface of the gas chamber; external air is pumped into the gas chamber through the air pump, then infrared light is emitted through the infrared light source, carbon dioxide in the gas can absorb infrared light of a specific wave band in the infrared light, then the infrared light irradiates the detection end of the detector through the light filter, the detector detects and analyzes the infrared light, and the infrared light is detected and analyzed through the infrared light source. Therefore, the concentration of carbon dioxide in the air is monitored in real time, and personal safety is effectively guaranteed.

The invention relates to the technical field of synchrotron radiation experiments, in particular to an XAFS automatic sample changing device integrating light intensity management and an operation method.The XAFS automatic sample changing device integrating light intensity management comprises an optical filter wheel, a sample table and a control assembly, the optical filter wheel and the sample table form an integrated structure used for XAFS experiments, the sample switching process is matched with the incident X-ray light intensity adjusting process, and the XAFS automatic sample changing device integrating light intensity management is achieved. Therefore, light intensity management is realized in an automatic sample changing process; an optical filter wheel capable of automatically switching, a sample table capable of accurately positioning and a temperature monitoring and remote control system cooperating with the sample table are introduced into a synchrotron radiation X-ray optical path, so that the photon flux incident on a sample can be optimized in real time according to the signal state of a detector and the thermal load of an optical filter; the stability, repeatability and safety of an XAFS experiment are remarkably improved while signal saturation and equipment overheating are avoided, so that manual intervention is reduced, the debugging time is shortened, and the operation efficiency of a whole light beam line is improved.

A spotlight, having a housing. The housing defines a cavity and a light exiting side of the spotlight. The spotlight has a light element provided in the cavity of the housing; a zoom optic provided in the cavity of the housing; and a filter arranged at the light exiting side on the housing. The filter has a tintable glazing (Smart Glass), wherein the translucency of the glazing is changeable by application of an electric voltage.

An objective system of a medical scope including an optical filter is disclosed. The optical filter includes a light incident side and a light exit side, a central region around an optical axis, and a peripheral region and is designed as an aperture with a single optical axis for white light and fluorescence light. The optical filter includes a first transmission zone for a transmittance of a first wavelength band and a second transmission zone for a transmittance of a second wavelength band at least partially different from the first wavelength band. At least one of the two transmission zones includes a filter coating. As a result, when both white light and fluorescence light pass the optical filter, a light beam cone of the fluorescence light has a larger diameter than a light beam cone of white light or vice versa.

The application discloses a kind of underwater laser imaging optical systems of entry pupil preposition, whole system is ten lenses, a protective window, a variable diaphragm and a filter, from object side to image side, it is protective window, front group, rear group and filter in proper order;Wherein: protective window is used to isolate water;Front group includes front group first, second, third and fourth lens four lenses in proper order;Rear group includes rear group first, second, third, fourth, fifth and sixth lens six lenses in proper order;Variable diaphragm is located between rear group third and fourth lens, and variable F number is realized by adjusting diaphragm aperture size, and lens depth of field is promoted;Filter is narrowband filter;Object side imaging beam is imaged once after passing through protective window, front group lens, then pass through rear group lens and filter and be imaged on target surface.The application can realize variable F number by variable diaphragm, promote lens depth of field, and focusing is carried out by last three lenses of rear group, and underwater 3m to infinite distance imaging can be realized.

A display device includes a variable wavelength LED that is a pixel of the device or one of a plurality of sub-pixels of the pixel of the device; and an absorptive color filter. The absorptive color filter is positioned between the variable wavelength LED and an exit of the display device such that light emitted by the variable wavelength LED passes through the absorptive color filter before exiting the exit of the display device. The variable wavelength LED or second LED sub-pixel may be driven to emit light at a first emission wavelength in response to a first electrical driving condition, and the variable wavelength LED may be driven to emit light at a second emission wavelength in response to a second electrical driving condition. The absorptive color filter is configured to attenuate a brightness of light emitted at the second emission wavelength, the second emission wavelength being shorter than the first emission wavelength. Methods of calibrating and driving the display device are also provided.

The present disclosure belongs to the technical field of display. Provided are a display panel and a manufacturing method therefor, and a display device. The display panel comprises: a base substrate; a pixel circuit layer, a black pixel definition layer, an encapsulation layer, and a planarization layer, which are located on one side of the base substrate and are sequentially stacked in a direction away from the base substrate, wherein the black pixel definition layer has a plurality of first openings, and the planarization layer has a plurality of second openings; a light-emitting element located in each first opening; and a light filtering assembly located in each second opening, wherein the light filtering assembly comprises a light-transmitting protrusion and a light filtering unit covering the light-transmitting protrusion, the light-transmitting protrusion comprising a side surface which forms an acute angle with the base substrate, the color of the light filtering unit in each second opening being the same as the color of the light-emitting element in the corresponding first opening, and the refractive index of the light-transmitting protrusion being greater than that of the light filtering unit. The present disclosure can improve the light extraction efficiency of the display device at the front viewing angle.

The invention discloses color difference detection equipment and process for production of high-wear-resistance regenerated polyester dyed cloth, and relates to the technical field of color difference detection equipment. Comprising a rack main body, a control main body is arranged at the front end of the rack main body, the rack main body is provided with a mounting mechanism for color difference detection for high-wear-resistance regenerated polyester dyed cloth production, and the mounting mechanism comprises a detection assembly and a control assembly, according to the invention, a red, green and blue three-primary-color narrow-band optical filter is adopted, and a second bevel gear and a worm connected with the second bevel gear are driven to rotate through meshing; the worm is meshed with a worm gear on the outer wall of the vertical shaft to drive the vertical shaft to rotate, and then the connecting rod drives the three sets of mounting frames to rotate synchronously, so that optical filter switching is achieved, the cloth cover chromatic aberration performance in different illumination environments can be simulated, the detection result is more accurate and comprehensive, the detection error caused by single illumination is reduced, and the detection efficiency is improved. And the comprehensiveness and the accuracy of chromatic aberration detection are improved.

The invention relates to the technical field of coal mining, in particular to a coal-rock interface detection device based on image recognition. According to the technical scheme, the coal rock interface detection device based on image recognition comprises a detection device body, an image recognition probe, a signal receiving module, an image analysis module, a positioning module and a mounting mechanism, the image recognition probe is arranged at one end of the detection device body, and the signal receiving module is arranged on the top face of the image recognition probe; according to the invention, the multi-modal image acquisition module, the integrated adaptive light source control unit, the multi-spectral imaging unit and the mechanical anti-shake unit are designed, and the adaptive light source can dynamically adjust the brightness according to the ambient light, so that the imaging stability is ensured; according to multispectral imaging, visible light and infrared data are synchronously collected, wave bands are switched in combination with an optical filter wheel disc, the coal rock interface spectral feature recognition capacity is remarkably enhanced, the device can still obtain high-definition and multi-dimensional images in the complex underground environment, and a reliable data basis is provided for subsequent analysis.

The invention, which belongs to the technical field of spectral imaging, discloses an ultra-wide-band ultra-wide-field-of-view high-spectral-resolution real-time imaging spectrometer comprising a first micro-lens array, a plurality of optical fibers, a plurality of second micro-lens arrays and a plurality of assemblies. First micro lenses in each column of the first micro lens array are arranged on a vertical plane arc, and micro lenses in each row are arranged on a horizontal plane straight line, so that incident light of a one-dimensional ultra-wide view field is obtained in real time; through optical fiber coupling, incident light is transmitted to the second micro lens array to be collimated into parallel light beams; according to the components, light of different wavebands is processed through the optical filter, the plane transmission grating and the detector, first-order diffraction light beams of different wavelengths in the different wavebands are received by the detector after diffraction, and space information and spectral information are obtained in real time according to an irradiated target block. The imaging spectrometer provided by the invention has the advantages of ultra-wide wave band, ultra-wide field of view, high spectral resolution, real-time measurement, compact structure and high stability, and is suitable for a remote sensing photoelectric reconnaissance detection system.

The invention relates to a continuous zoom cycle-scan television system based on a zoom collimation scanning field lens structure and application thereof. Light reflected by a target image horizontally passes through the focusing group, the zooming group, the compensation group and the collimating field lens group in sequence along an optical axis, is obliquely reflected by 45 degrees by the galvanometer group and then vertically passes through the fixed group, is obliquely reflected by 45 degrees by the reflector group again and then horizontally passes through the optical filter switching group leftwards, and finally is imaged on a detector photosensitive surface of the high-definition imaging module; and the high-definition imaging module carries out photoelectric conversion and image processing and then outputs a high-definition video or image. According to the invention, the problem that the image quality is reduced during the swing scanning of the peripheral scanning television is solved, the turn-back of the light path is realized through the cooperation between the galvanometer group and the reflector group, and the galvanometer group rapidly swings the reflector to control the direction of the light beam to realize image motion compensation, so that the peripheral scanning detection function is realized. The system can be used for panoramic dead-corner-free monitoring and detailed reconnaissance of key targets, and is widely applied to the fields of intelligent monitoring, military reconnaissance, automatic driving and the like.

The invention discloses a spectral imaging device and a spectral image recombination method. The spectral imaging device comprises a relay lens group, a light filtering module and an imaging module which are sequentially arranged along a light path, the relay lens group is used for transmitting an optical signal emitted by the to-be-tested sample to an imaging plane of the relay lens group to form an image of the to-be-tested sample; the light filtering module is arranged on an imaging plane of the relay lens group and is provided with a linear gradual change filtering area, and the light filtering module and the to-be-detected sample image can relatively move along the working wave band change direction of the linear gradual change filtering area, so that the complete wave band range of the linear gradual change filtering area covers each spatial position of the to-be-detected sample; and the imaging module is used for acquiring the optical signal filtered by the optical filtering module and realizing spatial and spectral imaging of the to-be-detected sample. According to the spectral imaging device, efficient and continuous spectral data acquisition is realized through relative movement between the to-be-detected sample image and the light filtering module.

The invention discloses an ultraviolet absorption gas analyzer, and relates to the technical field of gas analyzers. The ultraviolet absorption gas analyzer comprises an analyzer outer shell, the analyzer outer shell is connected with a first supporting seat and a second supporting seat, the first supporting seat is fixedly connected with a light source supporting seat, the light source supporting seat is provided with an ultraviolet light source generator, a rotating disc is rotatably connected between the first supporting seat and the light source supporting seat, and the rotating disc is provided with a rotating shaft. A plurality of groups of optical filter main bodies are arranged on the rotating disc, a measuring air chamber is arranged between the first supporting seat and the second supporting seat, and a light source receiver is arranged on the second supporting seat. According to the ultraviolet absorption gas analyzer, on one hand, protection is provided for the optical filter main body, the optical filter main body is isolated from the external environment, on the other hand, when the optical filter main body is replaced, the replacement of a plurality of groups of optical filter main bodies can be realized only by rotating the rotating disc, and the replacement process is convenient to operate, time-saving and labor-saving.

According to the method, a cavity black body and a diaphragm hole form an infrared light source, coarse adjustment of a two-dimensional displacement mechanism and fine adjustment of a three-dimensional high-precision displacement mechanism are combined, and an imaging optical system and a narrow-band filter are matched, so that the crosstalk test of a detector with the pixel spacing of 15 microns and below is realized. Through multi-area sampling, multi-band coverage testing and weighted average data processing, the problem that a traditional small-light-spot system is limited by optical diffraction limits is effectively solved, the testing accuracy is remarkably improved, the deficiency of a crosstalk detection method of a small-pixel infrared focal plane detector is overcome, detector evaluation means are enriched, and the detection efficiency is improved. The method is suitable for performance evaluation of infrared imaging system core devices.

A sensor chip structure (600) design based on a solid-state quantum spin sensing system, a manufacturing method, and a supporting related device. The sensor chip structure (600) is a diamond-based magnetic field and temperature sensing chip manufactured on the basis of a micro-nano processing technique, and comprises: a microwave radiation structure, a diamond NV center material, a laser diode, a heat dissipation structure, an optical filter (7), and a photodetector (6) which are manufactured on an insulating substrate.

The utility model discloses an in-situ illumination KPFM testing device. The in-situ illumination KPFM testing device comprises a KPFM tester body, the KPFM tester body comprises a laser detector, a reflective mirror, a spectroscope, a laser and a sample table; laser emitted by the laser device sequentially passes through the spectroscope, the sample table and the reflective mirror and enters the laser detector; an additional light source is arranged at a position close to the sample table, and the distance between a light outlet of the additional light source and the sample table is 3-5cm; and a light filtering assembly is arranged at an inlet of the laser detector. According to the testing device, interference factors in the testing process can be effectively reduced while the authenticity of the testing environment is kept, so that the testing efficiency and precision are improved, and the accuracy and reliability of in-situ illumination testing through the KPFM are remarkably improved.

The invention provides a triarylmethane dye and application thereof, and particularly provides a triarylmethane dye, a coloring composition and an optical filter. By designing the structure of the triarylmethane dye, the triarylmethane dye with excellent performance is obtained, and the triarylmethane dye has high thermal stability.

The invention discloses a suspension type laser weeding robot, and relates to the technical field of agricultural robots. The problems that an existing self-propelled laser weeding robot is complex in structure, large in weight, high in cost and short in endurance due to the fact that the robot is provided with a walking system and a power source, calibration is tedious due to non-coaxial arrangement of a vision system and a laser system, and aiming precision is prone to being interfered are solved. The suspension type laser weeding robot comprises a rack, a suspension device, a transmission system, a laser weeding module and an electric control system. The suspension device is connected with the rack and a tractor. The transmission system converts power of the tractor into electric energy. The laser weeding module comprises a shell, a connecting seat, a galvanometer system, a camera and an inclined optical filter; the light filter enables a refraction light path of the camera to coincide with a transmission light path of the galvanometer system, and coaxial aiming is achieved. The electric control system distributes and controls electric energy. The advancing power of the whole machine is provided by a tractor. The laser weeding device is used for realizing efficient and accurate laser weeding operation based on the power of the tractor.

The invention provides an edible fresh flower pesticide residue detection device and a detection method and device thereof, and relates to the technical field of agricultural product detection, the edible fresh flower pesticide residue detection device comprises a housing, a sampling assembly, a detection assembly and a control unit; the sampling assembly adopts a disposable hydrogel sampling piece, is composed of a composite hydrogel matrix containing Raman active nanoparticles, and is used for non-destructively transferring and enriching pesticide residues on the surfaces of petals; the detection assembly adopts a non-dispersive optical system comprising an excitation light source, a narrow-band filter array corresponding to a target pesticide characteristic Raman peak and a single-point photoelectric detector array to perform targeted detection on a Raman signal with a specific wavelength; according to the method, nondestructive efficient sampling of fragile petals is achieved through the specially-made hydrogel sampling piece, the equipment cost is greatly reduced through a non-dispersive optical framework, the problem that an existing detection method cannot give consideration to on-site pre-screening of rapid, low-cost, portable and nondestructive detection is solved, and the method is suitable for rapid detection of commercial tenants, markets and supervision departments.