135results about How to "Achieve resolution" patented technology

A method of using picosecond scan camera to simultaneously obtain fluorescent light spectrum and fluorescent lifetime of sample includes focusing blue violet light emitted by laser on sample by objective to excite sample single photon, collecting fluorescent from sample then splitting it and focusing it to be image on photoelectric cathode of picosecond scan camera, setting dispersion direction of fluorescent to be the same as slit direction of said camera but to be vertical to scan direction in order to measure out fluorescent lifetime of different light spectrum simultaneously under coaction of scan circuit and image intensifier deflection system.

An active matrix electro-wetting on dielectric (AM-EWOD) device includes a plurality of array elements arranged in an array, each of the array elements including array element circuitry, an element electrode, and a reference electrode. The array element circuitry includes an actuation circuit configured to apply actuation voltages to the electrodes, and an impedance sensor circuit configured to sense impedance at the array element electrode to determine a droplet property at the array element. The impedance sensor circuit is operated by perturbing a potential applied to the reference electrode. The AM-EWOD device includes a common row addressing line. The impedance sensor circuit further is operated by supplying voltage signals over the common addressing line to effect both a reset operation and an operation for selecting a row in the array to be sensed. The circuitry isolates the array element from the actuation voltage during operating the impedance sensor circuit.

The invention provides a method for an FDA-MIMO (Frequency Diverse Array-Multiple-Input and Multiple-Output) radar to suppress mainlobe deceptive interference. The invention mainly aims to solve a problem that an existing radar system has little possibility of suppressing deceptive interference from a mainlobe direction. The method includes the following steps that: 1, the joint transmission-receiving spatial frequency of the FDA-MIMO radar is constructed; 2, a transmission-receiving spatial frequency domain compensation vector is constructed to compensate a transmission spatial frequency domain; 3, a weight obtained according to the constraint conditions of a robust adaptive beamformer is solved; and 4, compensated matched filtered output signals are obtained. With the method of the invention adopted, the extra distance dimension controllable degree of freedom of a frequency diversity array (FDA) is fully utilized. The method can be used for suppressing mainlobe deceptive interference.

A grating heterodyne interference auto-collimation measuring device mainly comprises a two-frequency laser, a 1/4 wave plate, a beam splitting system, a photoelectric conversion system, a polarization beam splitter, a reflector and a grating. The two-frequency laser emits two-frequency laser which passes the 1/4 wave plate and which then turns into two mutually-perpendicular linearly-polarized beams. The beams entering the beam splitting system are divided into three beams; one beam enters a reference light path photoelectric conversion system; last two enter a positive-negative gage beam polarization beam splitter. In the laser entering the polarization beam splitter, a reflected beam S is reflected to the grating by the reflector, and an incident angle is set into an auto-collimation angle of the corresponding diffraction order; through reference light information, horizontal and vertical displacements of the grating can be known. The auto-collimation right angle is set not depending on grating displacements. Therefore, the grating heterodyne interference auto-collimation measuring device is applicable to measuring horizontal large-travel displacement and vertical displacement.

The invention discloses a bionic super-resolution imaging sensor and imaging method, relates to the imaging sensor and imaging method and belongs to the technical field of optical imaging. The bionic super-resolution imaging sensor disclosed by the invention comprises rotary double optical wedges, a bionic compound eye detection camera group, a spectroscope, a bionic compound eye staring camera group, an imaging processing module, a central control unit and a servo motor. The rotary double optical wedges are used for adjusting positions of areas of interest in a scene within a field of vision. The bionic compound eye detection camera group is used for simulating insect compound eyes to realize large field of view imaging and carrying out large field of view detection on areas in which targets may exist. The invention also discloses the imaging method realized based on the bionic super-resolution imaging sensor. According to the imaging sensor and imaging method with a large field of view imaging and foveated imaging mode switching function, two times of detection and judgment can be carried out on the areas of interest, and the accuracy is relatively high.

The invention relates to a nanometer positioning device and a nanometer positioning system, belongs to the technical field of automatic control of grating ruling machinery and solves the technical problems that in the prior art, the upper limit of the adjusting amplitude of a tilt angle and the adjusting precision of a nanometer positioning device are limited by the performance parameters, and the data collecting control module of a nanometer positioning system is large in developing difficulty. The nanometer positioning device comprises a substrate, a macro positioning platform, a first guiding guide track, a second guiding guide track, a micro-positioning platform, piezoelectric ceramic, a first laser interference displacement detection mechanism and a second laser interference displacement detection mechanism; one end of the piezoelectric ceramic is fixed on the macro positioning platform while the other end is contacted with the micro-positioning platform; the macro positioning platform slides along the first and second guiding guide tracks; the piezoelectric ceramic drives the micro-positioning platform to generate displacement. The invention also provides the nanometer positioning system applying the nanometer positioning device. The nanometer positioning device and the nanometer positioning system have a larger upper limit of the adjusting amplitude of the tilt angle and adjusting flexibility.

An active matrix electro-wetting on dielectric (AM-EWOD) device includes a plurality of array elements arranged in an array, each array element including array element circuitry, an element electrode, and a reference electrode. The array element circuitry includes an actuation circuit configured to apply actuation voltages to the electrodes, and an impedance sensor circuit configured to sense impedance at the array element electrode to determine a droplet property. The actuation circuitry includes a memory capacitor for storing voltage data corresponding to either an actuated state or an unactuated state of the array element, and an input applied to the memory capacitor operates to effect an operation of the impedance sensor circuit. Such input may isolate the array element from the actuation voltage during operation of the impedance sensor circuit, and the memory capacitor may operate as part of the impedance sensor circuit as a reference capacitor for determining the droplet property.

Substrate processing methods and apparatus are disclosed. In some embodiments a substrate processing apparatus may comprise a support structure and a moveable stage including first and second stages. The moveable stage has one or more maglev units attached to the first stage and/or second stage proximate an edge of the first stage. The first stage retains one or more substrates and moves with respect to a first axis that is substantially fixed with respect to the second stage. The second stage translates along a second axis with respect to the support structure. In other embodiments, a primary motor may maintain a rotary stage at an angular speed and/or accelerate or decelerate the stage from a first angular speed to a second angular speed. A secondary motor may accelerate the stage from rest to the first angular speed and/or decelerate the stage from a non-zero angular speed.

A zoom lens includes, in order from an object side along an optical axis, a first lens group having a positive refractive power, a second lens group having a negative refractive power, a third lens group having a negative refractive power, a fourth lens group having a positive refractive power, and a fifth lens group having a positive refractive power, wherein with a change in a magnification from a wide-angle end to a telephoto end, an interval between the first lens group and the second lens group is increased, the interval between the second lens group and the third lens group is changed, the interval between the third lens group and the fourth lens group is decreased, the interval between the fourth lens group and the fifth lens group is decreased, and focusing is performed by the third lens group.

The invention relates to a method for measuring a dental situation (1) comprising a plurality of implants (2, 3, 4, 5) and/or preparations for inserting dental restorations. Using a first measuring method, a first region (13) of the dental situation (1) is initially recorded while first measurement data are generated. The first region (13) is selected to comprise at least two implants (2, 3, 4, 5) and/or preparations. Subsequently, object regions (17, 18, 19, 20) surrounding the implants (2, 3, 4, 5) and/or the preparations are established, and, while using a second measuring method, the established object regions (17, 18, 19, 20) are detected, and second measurement data are generated. The second measuring method is more precise than the first measuring method.

The invention discloses a point cloud and grid partitioning method in an aerial photography terrain three-dimensional reconstruction system. According to the method, the problem that important modulessuch as point cloud densification, triangular gridding and texture mapping in a three-dimensional reconstruction system cannot be processed due to large data volume of point cloud is solved by partitioning three-dimensional data generated by aerial photography of large-scale scene terrain. According to the method, layer-by-layer segmentation is carried out on three-dimensional data in stages according to the memory use condition in a module, point cloud is partitioned before point cloud densification and triangular meshing, and then triangular meshes are partitioned before texture mapping processing. The hardware threshold of operation of a three-dimensional reconstruction system is reduced, the intra-block and inter-block relationship after partitioning can be well reserved, and a solidfoundation is laid for generating a large-scene high-resolution digital orthoimage (DOM) and a digital surface model (DSM).

The invention provides a retina three-dimensional imaging device based on double wavefront correctors for human eyes. The device comprises an adaptive optical assembly, an eye ground monitoring imaging and sighting mark assembly, a confocal scanning assembly and an optical coherent chromatography assembly. The adaptive optical assembly comprises a wavefront sensor (27), the double wavefront correctors and a series of spherical reflectors. The double wavefront correctors are respectively a wavefront corrector (18) and a wavefront corrector (21). The wavefront sensor (27) receives reflected light reflected by the human eyes to conduct wavefront detecting to obtain low-order aberration and high-order aberration of the human eyes. After a computer (43) calculates the low-order aberration and the high-order aberration, and a high-voltage amplifier (42) is controlled to output voltage to control the double wavefront correctors to correct the low-order aberration and the high-order aberration of the human eyes. The retina three-dimensional imaging device adopts the double wavefront correctors to improve correcting capacity of the adaptive optical system on the aberrations of the human eyes. Simultaneously, high-resolution three-dimensional imaging of retinas of the human eyes is achieved.

Microscopes, including viewing and other microscopic systems, employ a hinged, tiltable plate to adjust focus on a flat object such as a microscope slide or biochip by motion, achieved by tilting, which is substantially normal to the focus point on the plane of the object. By employing two such tiltable arrangements, relatively long scan lines of e.g., flying objective, single pixel on-axis scanning can be accommodated. The tilting support plate is specifically constructed to provide tailored locations for different objects in series along the Y axis of the plate. The plate can accommodate heaters and cooled plates and/or the flat object being examined. In a fluorescence scanning microscope, locations are specifically adapted to receive microscope slides and biochip cartridges such as Affymetrix's “Gene Chip®”. A scanning microscope under computer control, employing such a focusing action, enables unattended scanning of biochips with a simple and economical instrument. Also shown are flexure-mounting of a support plate to define the hinge axis, techniques for automatically determining position and focus, and a rotatably oscillating flying micro-objective scanner combined with the tilting plane focus system. Construction and control techniques are shown that realize simple and accurate focusing. Methods of examination of biological materials are disclosed. Simple and efficient focused scanning with a flying micro-objective of ordered arrays of nucleotides and nucleic acid fragments carried upon a microscope slide or other substrate is disclosed. Quantified fluorescence imaging is economically achieved by combined use of the described scanning and focusing arrangement and use of simple and accurate calibration modules respectively for example for Affymetrix's “Gene Chip” microarray modules and for microscope slides.

An ultra-short pulse time waveform and chirp rate measuring device comprises a first coupling mirror, a second coupling mirror, a spectroscope, a first reflecting mirror, a second reflecting mirror, a third reflecting mirror, a cross-correlation crystal, a frequency doubling crystal, a fourth reflecting mirror, a fifth reflecting mirror, a diffraction element, a photoelectric detector and a computer. Front-edge and rear-edge high-resolution ratio measuring of ultra-short pulses is achieved through a cross-correlation method to obtain time waveforms and pulse widths. Ultra-short pulse spectrum measuring is achieved through diffraction elements orthogonal to the time axis to obtain the spectrum width, and accordingly, the chirp rate of measured pulses can be obtained based on the pulse width and the spectrum width, the requirement of physical experiments for the time waveform measuring and the requirement of an Ultra-short pulse laser system for measuring of the chirp rate are met conveniently.

An input signal is compared to 2N - 1 reference voltages to generate 2N - 1 corresponding binary valued comparison signals, delaying at least one of the comparison signals by a variable delay and detecting a difference in arrival time between the delayed signal and another comparison signal. A time interpolation signal encoding a plurality of bins within a least significant bit quantization level is generated, based on the detected difference in arrival time. An M-bit output data is generated based on the comparison signals and the time interpolation signal. A non-uniformity of a code density of the M-bit output data is detected, and based on the detecting the delaying is varied.

The image processing method for specifying dot arrangements for respective ink components according to image data, when forming an image on a recording medium by means of dots of inks of n colors, where n is any positive integer, the method comprises the steps of: calculating color correlation and spatial frequency components from the image data; specifying a dot overlap function for controlling overlapping between dots of the ink components, according to the calculated color correlation and spatial frequency components; calculating an ink recording rate of each of the inks from the image data; specifying the dot arrangement of a first ink component by means of a prescribed method, according to the ink recording rate; and determining a dot arrangement for the inks of the n colors, in such a manner that, taking k to be an integer where 2≦k≦n, the dot arrangement of the kth ink component is specified according to the ink recording rate of the kth ink component, and the previously specified dot arrangement and dot overlap function of the first ink component through to the (k−1)th ink component.

The invention discloses an airborne thinned array antenna downward-looking three-dimensional imaging radar system and imaging method. The airborne thinned array antenna downward-looking three-dimensional imaging radar system comprises an aerial carrier platform, a thinned array antenna system and a distributed position and orientation system (POS). The aerial carrier platform is used for carrying the thinned array antenna system and the distributed POS, and array antennae can be distributed in the middle and on two sides of an aircraft. The thinned array antenna system is composed of a plurality of densely distributed sub arrays arranged in the middle and one or two sub arrays located on two sides. Accurate measuring of the multi-phase center relative space position of the array antennae can be achieved through the distributed POS. In the direct downward-looking mode, the observation width is broadened through a scanning mode which combines a Scan SAR mode and a Sweep SAR mode. When the aerial carrier operates in the upper air, a cross rail direction equivalent array can be obtained in a thinned re-navigation mode with Barker codes serving as the sampling criterion, and the cross rail direction resolution is improved. The array antennae in space thinned distribution are adopted in the cross rail direction of the aerial carrier and high-resolution wide-width three-dimensional imaging of the observation scenes is achieved.

The invention provides a time domain-based spectrum detection system, which can be used for performing spectrum detection on a serial multiplex detected optical device. In the detection system, a reflection device comprises n reflection units at different spatial positions; each reflection unit is used for reflecting optical pulses of different wavelengths; n is an integer of over 2; broadband optical pulses generated by a broadband optical pulse generating device are transmitted to the reflection device; the reflection device is used for reflecting the received broadband optical pulses by using the reflection units at different positions to form optical pulse strings which correspond to the optical intensity of different wavelengths at different positions on a time domain; and a detection device is used for detecting the optical intensity of each pulse in the optical pulse strings which are reflected or transmitted by the detected optical device to obtain a spectrum of the detected optical device. In the system provided by the invention, discrete optical pulse strings on the time domain formed by the broadband optical pulses reflected by the reflection device enter the detected optical device, so that the spectrum information of the detected optical device can be distinguished on the time domain.

The invention discloses an ultrahigh numerical aperture lithography imaging polarization compensation apparatus. The apparatus comprises a light source used for providing an illumination light beam, an illumination unit used for adjusting the illumination light beam to an exposed light beam and irradiating a mask plate, a projection objective used for imaging an imaging light beam transmitting the mask plate to a silicon chip, and a polarization compensation device used for the polarization modulation of the exposed light beam or/and the imaging light beam, and positioned between the illumination unit and the mask plate or between the projection objective and the silicon chip.

The invention relates to a multi-line laser radar. The multi-line laser radar comprises a laser emitting device which comprises at least two laser emitters and is used for emitting multiple paths of emergent laser light, a minor reflector used for dividing the emergent laser light into multiple beams of laser light and reflecting the multiple beams of laser light to a galvanometer at a specific angle, the galvanometer used for reflecting the emergent laser light reflected by the minor reflector again to a target object in a detection field of view, a main reflector used for receiving the reflected laser light and reflecting the reflected laser light to a laser detection device, a receiving lens used for collecting the reflected laser light to the laser detection device, and the laser detection device used for receiving the reflected laser light and outputting a detection signal, wherein the reflected laser light is the laser light returned after reflection of the target object; and thegalvanometer and the main reflector rotate synchronously around a central axis. According to the multi-line laser radar, the two-dimensional space scanning detection of the multi-line laser radar canbe realized by only rotating the galvanometer and the main reflector, so that the usage amount of devices is greatly reduced, the structure of the multi-line laser radar is simplified, and the manufacturing cost of a multi-line laser is further reduced.