74 results about "Optics" patented technology

The present invention relates to a flow cytometer, comprising a light source, a light beam shaping module for collimating and converging a light beam emitted from the light source so that the light beam irradiates samples to be detected, a sample generation unit, which comprises a gas-liquid transmission controlling module and a flow chamber that are interconnected, and a signal processing unit, for collecting, photoelectrically converting and analyzing the scattered beam emitted from the flow chamber. The light beam shaping module comprises a first cylindrical lens and a second cylindrical lens for respectively converging the light beams in two directions. In the present invention, the spot converged at the cell-interrogation zone of the flow chamber is flattened to avoid instability of the fluid which in turn leads to instability of the excited optical signal, and consequently the stability and reliability of the system are improved.

A method includes performing a three dimensional volume scan of a region of interest located in a portion of an object or subject in an examination region, including dynamically collimating a radiation beam used to perform the scan so that a geometry and/or location of the radiation beam tracks, during the scan, to a geometry and/or location of the region of interest, wherein the region of interest is a sub-region of the portion of the object or subject in the examination region.

A multi-purpose solar lamp includes an illumination lamp powered by solar power, a positioning board detachably fixed onto a wall or any plane, and a plug-in part pluggable into the ground. The positioning board and the plug-in part can be simultaneously or alternately combined to the back of the illumination lamp to allow users to conveniently fix the illumination lamp to the wall or a wooden or concrete ground or plug the plug-in part into the ground/soil as needed to achieve a multi-purpose effect.

A luggage rack able to illuminate includes a body portion (101), fixed on a top of a vehicle. A plurality of illuminators (103) is further included and arranged with the illuminating luggage rack. By arranging the illuminators (103), surrounding vehicles and drivers may easily notice the vehicle having the illuminating luggage rack, ensuring driving safety.

The invention discloses a method for detecting and evaluating sound emission of a crane, comprising the following steps: arranging a sensor required by detecting sound emission at a detection portion of the crane; performing loading circulations on the crane to be detected twice, recording sound emission in the loading process, determining a source region of sound emission and determining the activity and the strength of a sound emission source; and evaluating integration levels of the sound emission source according to the activity and the strength of the source emission source to determine the dangerous degree of the sound emission source. By sound emission detection, the invention can perform integral non-destructive detection on the metal structure of the crane to obtain the dangerous degree of the sound emission source in the crane, evaluate the integrity of the crane structure and avoid dangers.

An acousto optic element comprises optically transparent acousto optic medium having light incoming plane, light outgoing plane facing light incoming plane, transducer joining plane, and inclined plane tilted to transducer joining plane and piezoelectric transducer on which two opposing planes i.e., electrode layers and are formed and the transducer is connected to transducer joining plane of acousto optic medium through one of the electrode layers, wherein a deposited layer or a coating layer is formed on at least one of ultrasonic transducer or the acousto optic medium, the layer preventing ultrasonic waves generated by oscillation of ultrasonic transducer leaking onto acousto optic medium as a leakage-ultrasonic wave and propagating there, thus obtaining a high light-fading ratio.

The first embodiment of the present invention relates to a lens driving device comprising: a cover including an upper plate and a lateral plate extending from the upper plate; a bobbin arranged to move in a first direction within the cover; a coil arranged at the bobbin; a magnet which is arranged at the cover and faces the coil; and a base which is arranged below the bobbin and coupled to the cover, wherein the bobbin includes: a first surface facing the upper plate of the cover; a second surface which faces upwards and is arranged lower than the first surface; a first protrusion which is arranged at the first surface of the bobbin and overlapped with the upper plate of the cover in a first direction; and a groove concavely formed downwards on the second surface of the bobbin.

To provide a thermal electromagnetic wave detection element, a method for producing a thermal electromagnetic wave detection element, a thermal electromagnetic wave detection device, and an electrical apparatus, which are highly reliable and make it possible to prevent damage or deformation in the vicinity of the corner parts of a void, a thermal electromagnetic wave detection element includes: a semiconductor substrate; a support member provided on the semiconductor substrate; a detection unit that is provided on the support member and is able to extract from a pair of electrodes an electrical signal corresponding to a received amount of electromagnetic waves; and a pair of electrically conductive vias that perforate through the semiconductor substrate and are electrically connected to the pair of electrodes, a void that opens on the support member side being provided between the pair of vias of the semiconductor substrate.

The invention provides a foreign matter detecting apparatus and method. The foreign matter detecting method comprises the following steps: setting the pixel group of a small area including the pixel according to each pixel of the digital image forming the substrate of detecting object; comparing the brightness value of each pixel and the brightness of the pixel group including the pixel; operating the quantity of the deviation degree of each pixel relative to the brightness value of the pixel group according to each pixel via the comparison as the brightness confirmation value; and determining whether exists foreign matter or not based on the brightness confirmation value. The deviation degree of the brightness of the substrate is quite small. As the foreign matter is the object having no fixed shape and naturally formed, the brightness thereof has the characteristics of entirely high brightness level deviation. The difference of the deviation degree of the brightness of the product and foreign matter can be utilized to identify the foreign matter by operating the brightness confirmation value.

The invention discloses a variable-focus cavity type lens based on a dielectric elastomer. The lens comprises a lens driver which consists of a first dielectric elastomer film, a second dielectric elastomer film and a flexible electrode, and the first dielectric elastomer film and the second dielectric elastomer film are fixedly pasted on an annular supporting frame. The first dielectric elastomerfilm and the second dielectric elastomer film are symmetrically arranged and attached to each other, arc-shaped grooves are formed in the first dielectric elastomer film and the second dielectric elastomer film, the two sets of arc-shaped grooves correspond to each other, a cavity is formed between the two sets of arc-shaped grooves, and the cavity is filled with transparent liquid media. Flexible electrodes are coated from the peripheries of the arc-shaped grooves of the first dielectric elastomer film and the second dielectric elastomer film to the annular part of the annular support frame.The lens is made of the dielectric elastomer film, the flexible electrode and the transparent liquid medium, wherein the zoom imaging effect can be achieved by changing the shape of the cavity of thezoom lens, and the zoom lens has the advantages of being light in structure, small in size and the like.

The invention provides a camera shooting optical lens. The camera shooting optical lens comprises six lenses which are sequentially a first lens with negative refractive power, a second lens with positive refractive power, a third lens with positive refractive power, a fourth lens with negative refractive power, a fifth lens with positive refractive power and a sixth lens with negative refractivepower from the object side to the image side, wherein the focal length of the shooting optical lens is f, the focal length of the first lens is f1, the focal length of the second lens is f2, the on-axis thickness of the fifth lens is d9, the on-axis distance from the image side surface of the fifth lens to the object side surface of the sixth lens is d10, the center curvature radius of the objectside surface of the second lens is R3, the center curvature radius of the image side surface of the second lens is R4, and the following relational expressions are satisfied, -4.50 </= f1/f </=-2.20,2.00 </= f2/f </= 5.50, -20.00 </=(R3+R4)/(R3-R4) </=-2.50, 3.00</=d9/d10</= 10.00. The camera shooting optical lens has good optical performance and meets design requirements of wide angle and ultra-thinness at the same time.

The invention discloses a mask plate cleaning device, which comprises an observation camera for photographing the surface of a mask plate to obtain position information of foreign matters on the mask plate; a nitrogen nozzle, positioned below the surface of the mask plate and used for purging foreign matters on the surface of the mask plate according to the position information of the foreign matters; an air extractor, positioned below the surface of the mask plate and used for extracting nitrogen sprayed by the nitrogen nozzle from the blown foreign matters so as to remove the foreign matters on the surface of the mask plate and discharge the foreign matters; and a control unit, used for controlling the nitrogen nozzle to spray nitrogen to the surface of the mask plate and controlling the air extractor to extract nitrogen from the surface of the mask plate when the observation camera shoots that foreign matters exist on the mask plate. A positioning cleaning mode is adopted, the purging range is more accurate, the area, affected by purging, of the mask plate is reduced on the premise that the air pressure of the nitrogen nozzle is kept unchanged, the success rate of removing foreign matter on the surface of the mask plate is increased through the air extractor, and then the reliability of the mask plate is improved.

The invention discloses a method for preparing speckles, a material with speckles, and a test method of the material. The method for preparing the speckles disclosed by the invention comprises the following steps: attaching a silver film as a speckle precursor on a specified surface of a target speckle carrier; immersing the carrier with the silver film in an electrolyte solution containing chloride ions to transform the silver film into silver nano-speckle particles dispersed on the specified surface; and constituting target speckles by the silver nano-speckle particles dispersed on the specified surface. The method for preparing the speckles is simple and convenient to operate, and has a low cost; the effect of the prepared speckles on the specified surface of the carrier is controllable, which easily meets the requirements of an EBSD test; and the particle sizes of the nano-speckle particles meet the requirements of high-resolution DIC, the particle sizes of the nano-speckle particles are uniform, and the distribution uniformity is easy to control.

The disclosure herein aims to provide an image stabilizer device that generates a more appropriate shake signal. The image stabilizer device for a camera system in the present disclosure includes a detection unit that detects an angular speed of the camera system, and outputs a shake signal associated with the detected angular speed, an acquiring unit that acquires information indicating a set shutter speed, an adjusting unit that advances a phase of the shake signal to generate an adjusted signal, and outputs the adjusted signal, when the set shutter speed is faster than a predetermined speed, and a correction unit that corrects an influence on an output of the image stabilizer device due to the shake associated with the angular speed, based on the shake signal or the adjusted signal.

The invention relates to a pixel matrix driving device, a pixel matrix driving method and a display thereof. The pixel matrix driving device comprises a pixel matrix, a time schedule controller and adriving module; the pixel matrix comprises a plurality of sub-pixels, and different polarity inversion positions are arranged between the i-th column of sub-pixels and the (i + 1)-th column of sub-pixels; the time sequence controller is used for obtaining an initial pixel value and obtaining a first gray-scale value and a second gray-scale value according to the initial pixel value; and the driving module is used for obtaining a first loading voltage according to the first gray-scale value, obtaining a second loading voltage according to the second gray-scale value, and loading the first loading voltage and the second loading voltage to the pixel matrix. According to the invention, the polarity reversal positions of two adjacent columns of sub-pixels are different; and the voltage is alternately loaded to the sub-pixels by the first loading voltage or the second loading voltage in a certain row of sub-pixels and a certain column of sub-pixels, so the horizontal equidistant cross grainscan be improved, the whitening phenomenon of the display panel in side view can be improved, and the display panel has good display quality in front view and side view.

The invention provides a supersonic wind tunnel flow field multi-camera three-dimensional calibration device, which comprises a particle storage tank and a wind tunnel test section, wherein the particle storage tank is connected with the wind tunnel test section through a high-pressure pipeline; the wind tunnel test section comprises a shell, a laser and a mirror group; the mirror group comprisesa reflector, a transverse semi-transparent and semi-reflective mirror and a longitudinal semi-transparent and semi-reflective mirror; the longitudinal semi-transparent and semi-reflective mirror and the reflector are sequentially arranged in an emitting direction of the laser device, and the transverse semi-transparent and semi-reflective mirror is arranged on the same horizontal plane of the reflector; the longitudinal semi-transparent and semi-reflective mirror is perpendicular to the side surface of the shell, and the transverse semi-transparent and semi-reflective mirror is perpendicular to the top surface of the shell; and an included angle between each of the two groups of semi-transparent and semi-reflective mirrors and the reflector is 90 degrees. The supersonic wind tunnel flow field multi-camera three-dimensional calibration device provided by the invention effectively solves the problem of supersonic multi-camera calibration.

The invention discloses a rotary single-lens oblique photography mechanism for an aircraft. The rotary single-lens oblique photography mechanism includes a mounting disk, a first rack is fixedly connected between the front side and the rear side of the left side of the bottom of the mounting disc through bolts, a camera is fixedly connected into the first rack, second racks are fixedly connected to the front side and the rear side of the right side of the bottom of the mounting disc, and X-shaped racks are fixedly connected to the bottoms of the two second racks. The invention relates to the field of photography mechanisms. According to the rotary single-lens oblique photography mechanism for the aircraft, by arranging the reflector with one side, the angle can be adjusted to different angles; the shooting angle of the camera can be adjusted; only one camera is needed to be matched with one mirror frame and one reflective mirror to meet the shooting requirements of three angles of thefront lower part, the right lower part and the rear lower part, so that the overall weight is reduced, the space is reduced, the stable rotation of the mirror frame and the reflective mirror can be ensured, the shaking problem is reduced, and the shot picture is clearer.

The invention discloses a three-dimensional chiral nanometer anti-counterfeiting device and a pattern manufacturing method, and relates to the technical field of nanometer plasma optics. The method comprises: firstly, a three-dimensional chiral nanometer anti-counterfeiting structure block adopting a double-layer aluminum arc structure as a 3D chiral color pixel; secondly, adjusting the central angle of the double-layer aluminum arc structure, realizing the sRGB space function that the right-handed circularly polarized light color palette occupies 32% and the sRGB space function that the left-handed circularly polarized light color palette occupies 19%; arranging the three-dimensional chiral nanometer anti-counterfeiting structure blocks; the three-dimensional chiral nanometer anti-counterfeiting device formed by arrangement displaying different patterns under the irradiation of the left-handed circularly polarized light and the right-handed circularly polarized light. The defects of existing plasma optical encryption are overcome, and 3D chiral color printing has good application prospects in the aspects of optical safety and file authentication.

The invention relates to the field of intelligent production and processing, in particular to a dust-free workshop environment monitoring method and system and electronic device.The specific method comprises the following steps that when the illumination brightness of an illumination control area changes, the illumination brightness of the illumination control area is compared with a preset first illumination brightness standard; and then the illumination brightness of the illumination control area is adjusted according to the brightness comparison result, so that the illumination brightness of the illumination control area can be adjusted and judged for multiple times, and a lamp group corresponding to the illumination control area can be adjusted to a required preset first illumination brightness standard or a required preset second illumination brightness standard according to actual needs. Therefore, the light environment of the dust-free workshop is effectively monitored, the light environment in the dust-free workshop can be adjusted in time, and the light environment in the dust-free workshop can meet different requirements of users.

The invention discloses a method for etching a heterojunction of a GaN-based high-electron-mobility transistor, and belongs to the technical field of semiconductor processing. The GaN-based high-electron-mobility transistor heterojunction comprises a mask material layer, a pGaN layer, an AlGaN layer, a GaN layer and a bottom material layer which are sequentially arranged from top to bottom, and the method comprises the following steps: conveying a to-be-etched sample of which the mask material layer is opened to an etching cavity of a reactive ion etching machine through a conveying device, introducing a first group of etching gas to quickly etch most pGaN layer materials; and after the etching of the first group of etching gas is finished, introducing a second group of etching gas into the etching cavity of the reactive ion etching machine to slowly etch the remaining pGaN layer material, and taking the sample out after the etching is finished. According to the method provided by the invention, the pGaN can be selectively etched and the etching is stopped on the AlGaN layer, and the etching amount of the etching process on the AlGaN layer is less than 2 nm.

The invention discloses an automatic lens clamping device for an optical spherical surface milling and grinding robot. The automatic lens clamping device comprises a cylindrical shell, a main shaft arranged in the shell in a covering manner and with the bottom extending out of the shell, a driving motor is fixedly connected with the bottom end of the main shaft, a clamping ring arranged between the shell and the main shaft, an annular air expansion pipe fixed to the inner wall of the shell and an air inlet pipeline connected with the annular air expansion pipe; and the clamping ring is locatedbetween the annular air expansion pipe and the main shaft. According to the automatic lens clamping device, the annular air expansion pipe is inflated to expand, elastic clamping pieces of the clamping ring are extruded inwards after the annular air expansion pipe is expanded, the elastic clamping pieces are bent inwards to clamp a lens on a lens supporting base, the lens is clamped, the drivingmotor drives the main shaft to rotate, the shell, the annular air expansion pipe and the clamping ring rotate synchronously, and therefore stable clamping in the lens milling and grinding process is achieved.