78results about How to "Avoid shadow effect" patented technology

A method for the three-dimensional imaging of a sample in which image information from different depth planes of the sample is stored in a spatially resolved manner, and the three-dimensional image of the sample is subsequently reconstructed from this stored image information is provided. A reference structure is applied to the illumination light, at least one fluorescing reference object is positioned next to or in the sample, images of the reference structure of the illumination light, of the reference object are recorded from at least one detection direction and evaluated. The light sheet is brought into an optimal position based on the results and image information of the reference object and of the sample from a plurality of detection directions is stored. Transformation operators are obtained on the basis of the stored image information and the reconstruction of the three-dimensional image of the is based on these transformation operators.

The invention discloses an improved constant false alarm rate detecting method for a ship-borne linear frequency modulation continuous wave radar and belongs to the field of signal processing. The method includes: the maximum value of each Doppler channel energy after Doppler treatment of each distance unit is used as the input of a two-dimensional reference window; judgment is performed twice, targets and backgrounds are preliminarily distinguished through the first judgment, and before the second judgment, the units judged as the targets by the first judgment are removed during energy average value calculation of the distance units. Compared with traditional CA_CFAR, the method has the advantages that the defect of mutual shielding of adjacent targets is overcome, the advantage of low calculation complexity of the traditional CA_CFAR is kept, and both detection performance and software-hardware implementation cost are considered.

The invention discloses a method for measuring the tooth profile deviation of a cylindrical gear based on linear structured light. According to the method, firstly a three-dimensional nominal mathematical model of the tooth surface of a measured gear is built; the structured light is formed by a series of equally spaced light spots, and the operation is performed based on characteristics of the structured light and within an effective value range of the structured light; a mathematical model of a gear tooth profile deviation item is built; and finally high-precision measurement for the tooth profile total deviation, the tooth profile slope deviation and the tooth profile shape deviation of the cylindrical gear is realized. According to the invention, detection for each tooth of the cylindrical gear in a complex environment can be realized, the measurement speed is high, and the efficiency is high; the method can adapt to detection for various types of cylindrical gears and does not have problems such as measuring head abrasion and radius compensation; the measurement accuracy can be improved through big data, the repeatability is good, and a shadow effect in gear detection is avoided. Tooth profile error calculation can be performed on all measured data transformed into a gear coordinate system, and the method is high in calculation speed.

This invention provides a 3D laser capture system, and method for employing the same, that avoids a shadow effect and allows for straightforward set-up and use of the system in imaging the surface profile of an object. A camera is provided with a head assembly that includes a lens configuration and a pair of mirrors that generate two simultaneous views, of opposite object sides. The two views are projected by the mirrors and lens configuration onto discrete portions of the camera's image sensor. The separate images captured on each of the two portions of the sensor are both analyzed by the systems vision system processor, thereby allowing the processor's profiling algorithm to analyze the surface from two different viewing angles concurrently. Portions of the laser blocked in one view are generally visible in the other view. Alternatively, a second lens can be employed to provide a second field of view.

A coating apparatus is revealed that is designed to coat substrates by means of a physical vacuum deposition process or a chemical vacuum deposition process or a combination thereof. Said coating apparatus is particular in that it uses a rotatable magnetron (14) that is coverable with an axially moveable shutter (18). Such an arrangement enables to keep the magnetron target clean or to clean the target in between or even during subsequent coating steps. The shutter further provides for a controllable gas atmosphere in the vicinity of the target. The arrangement wherein the magnetron is centrally placed is described. Substrates are then exposed to the sputtering source from all angles by hanging them on a planetary carousel (24) that turns around the magnetron.

The invention provides a copper nanowire / copper film composite structure and a preparation method thereof, and aims to provide a copper nanowire / copper film composite structure and a magnetron sputtering preparation method thereof. The invention employs a small deposition angle direct current magnetron sputtering deposition technology and prepares a copper nanowire / copper film composite structure on a glass substrate by proper adjusting of film thickness, substrate temperature and substrate bias voltage. The copper nanowire / copper film composite structure provided by the invention has smooth copper nanowire surface, uniform radial thickness, a length of 0.1-5mm, a diameter of 100-500nm and a copper film thickness of 50-100nm. The copper nanowire is parallel to the copper film surface and embedded in the copper film with a thickness less than that of the copper nanowire. According to the invention, metal copper film surface is embedded with sub-wavelength copper nanowire, which has potential application prospect infields related to surface plasma.

A track assembly for supporting fabric on a surface includes a base track defining a first half of a hinge and a first half of a snapping clamp. The base track preferably includes a tension force dissipater extending from the first half of the hinge. An upper track defines a second half of the hinge and is pivotally connectable to the base track. The upper track defines a second half of the snapping clamp for releasably engaging the fabric. The upper track includes a strut extended downwardly towards the base track such that when high tension forces are applied to the upper track, due to fabric tensioning, the strut contacts the base track and at least partially transmits the tension forces to the surface.

The invention discloses a mask for the reflection type photolithography technology and a manufacture method and a using method of the mask. The method for manufacturing the mask for the reflection type photolithography technology comprises the following steps: providing a substrate; forming multiple reflecting layers on the substrate; forming protecting layers on the multiple reflecting layers; forming opening patterns exposing one part of each reflecting layer in the protecting layers; carrying out interface roughing process on the multiple reflecting layers and enabling the exposure parts of the multiple reflecting layers to form light absorption areas and enabling the non-exposed parts of the multiple reflecting layers to form light reflection areas, wherein the interface roughing process is used for roughing the interfaces of adjacent reflecting layers; and removing the protecting layer. According to the mask for the reflection type photolithography technology, manufactured by the method, no height difference exists between the light reflecting area and the light absorption area, light reflected by the light reflecting area cannot be absorbed by the light absorption area and the shadow effect can be avoided.

The invention discloses a nucleic acid detection method for separating a luminous marker based on magnetic beads and nucleic acid hydrolysis. The method comprises the following steps: designing a functional probe for detecting a target nucleic acid fragment; modifying the functional probe on the surface of functional magnetic beads; capturing the target nucleic acid fragment and a luminous marker to the surface of the magnetic beads by virtue of hybridization; performing magnetic separation; cleaning, thereby obtaining the magnetic beads on which the luminous marker is obtained; adding a nucleic acid hydrolysis reagent, separating the luminous marker from the surface of the magnetic beads by virtue of nucleic acid hydrolysis, thereby obtaining a luminous marker solution which does not contain the magnetic beads; and performing luminous detection on the solution, thereby acquiring the target nucleic acid information. According to the method disclosed by the invention, the luminous signal loss caused by a shielding effect of the magnetic beads on the luminous signal is completely overcome, 0.1pM of nucleic acid fragments can be detected at least, and the detection sensitivity is high.

A track assembly for supporting fabric on a surface includes a base track defining a first half of a hinge and a first half of a snapping clamp. An upper track defines a second half of the hinge and is pivotally connectable to the base track. The upper track defines a second half of the snapping clamp for releasably engaging the fabric. The upper track includes a strut extended downwardly towards the base track such that when high tension forces are applied to the upper track, due to fabric tensioning, the strut contacts the base track to reinforce the track assembly.

The present invention provides a deposition device and a mask assembly applied thereto. The deposition device comprises a mask frame possessing a frame opening; a mask combined with the upper surface of the mask frame and configured to cover the frame opening; an extending component arranged on at least one part of an edge of the frame opening and configured to protrude from the upper surface of the mask frame, and enable the vertical distance of a first part corresponding to the frame opening of the mask to be greater than the vertical distance of a second part contacted with the upper surface of the mask frame of the mask, wherein each vertical distance is measured from the upper surface of the mask frame.

A method for the thermal regulation of photovoltaic panels exposed to the wind and comprising a plurality of devices for the spraying of a cooling liquid suitable for spraying the liquid onto the photovoltaic panels, the method being characterized in that it comprises the steps consisting in:

• • measuring a temperature of at least one panel;
  • measuring the wind speed;
  • activating the spraying of at least one of the spraying devices;
  • deactivating the spraying of all or a part of the spraying devices.

The method is such that the activation, deactivation and/or spray pressure, of some of the spraying devices are controlled relative to the measured wind speed.

Device for the implementation of this method.

The invention provides a mask and frame assembly of a mask tensioning machine for a deposition process. The mask and frame assembly comprises a frame and a mask, bumps are arranged on the peripheral edge of the frame, and the mask is assembled on the frame and is jacked by the bumps of the frame. The mask and frame assembly has the advantages that the mask is jacked by the bumps of the frame, the surface of the mask is flatly pressed by a roller so as to be easily flattened, accordingly, crinkling of the mask is prevented, and a shadow effect caused by crinkling of the mask is avoided.

The invention relates to a preparation method of a semiconductor device. The method comprises: providing a semiconductor substrate; forming a virtual gate on the semiconductor substrate; forming a first offset side wall and a second offset side wall at the side of the virtual gate; removing the virtual gate; and removing the first offset side wall to form a groove with the increased critical dimension. According to the invention, after the virtual gate is formed, a thermal treatment oxide layer, the first offset side wall, and the second offset side wall are formed on the virtual gate; and after LDD and source-drain ion injection are executed, the thermal treatment oxide layer and the first offset side wall are removed to form the groove, wherein the critical dimension of the groove is the critical dimension of the metal gate and the critical dimension of the metal gate is larger than that of the conventional metal gate. Moreover, the thermal treatment oxide layer and the first offset side wall are formed after the source-drain ion injection, so that the large critical dimension is obtained and the shadow effect can be avoided and thus the device performance is improved.

The invention discloses a mask and a fabrication method thereof. The fabrication method comprises the steps of providing a mask substrate, wherein the mask substrate comprises a glass surface and an evaporation surface which are opposite to each other; forming a plurality of grooves independent to one another in a side of the glass surface of the mask substrate by laser; and forming a plurality ofholes, corresponding to the grooves, in a side of the evaporation surface of the mask substrate by employing a yellow light process, wherein the plurality of holes respectively communicate with the corresponding grooves. Compared with the a mask fabrication method employing the yellow light process on the glass surface and the evaporation surface in the prior art, the fabrication method providedby the technical scheme of the embodiment of the invention has the advantages that the yellow light process in one time is reduced, and the mask fabrication efficiency is further improved; and moreover, smooth transition can be achieved after the groove formed by the laser communicate with the corresponding holes, a shadow effect at a connection position is prevented, and the mask accuracy is improved.