897 results about "Rock crystal" patented technology

The control method allows execution of various functions in an electronic diary watch, which includes, in a case closed by a crystal, a time-keeping circuit and/or a watch movement powered by an energy source, and a dial on which the time is displayed in a digital and/or analogue manner. A determined number of sensors (C1 to C7) are provided with touch sensitive pads arranged on an inner or outer face of the crystal. These sensors are provided for carrying out the various controls of the method when they are individually activated by a user's finger. In order to consult data or parameters, the method includes a first series of steps consisting in displaying different menus (102 to 106) of the diary function on at least one liquid crystal display by activating at least one sensor (C4, C5) of a group of sensors (C4 to C7), and in selecting the menu or record to be consulted (107 to 111) by activating a validation sensor (C1). In order to enter data, the method includes a second series of steps consisting in activating the validation sensor (C1) for a determined period of time or with a determined application of pressure, entering diary data by activating certain sensors (C2 to C7) each controlling execution of a specific determined function, and validating data entered by action on the validation sensor.

A method for removing defects at high pressure and high temperature (HP/HT) or for relieving strain in a non-diamond crystal commences by providing a crystal, which contains defects, and a pressure medium. The crystal and the pressure medium are disposed in a high pressure cell and placed in a high pressure apparatus, for processing under reaction conditions of sufficiently high pressure and high temperature for a time adequate for one or more of removing defects or relieving strain in the single crystal.

An edge detecting circuit detects whether a particular pixel belongs to an edge by determining whether the differential value of the pixel from the neighboring pixel is equal to or greater than a threshold. Based on the detection result, an emphasis converter stops OS drive when the image of a pixel area is regarded as an edge image in accordance with the detected result of the edge detecting circuit and implements OS drive when the image of a pixel area is not regarded as an edge image. In this way, the edge detecting circuit detects edge portions of the input video, whereby OS drive in the emphasis converter can be controlled so as to be turned on and off.

To control the precipitation position of a crystal and increase the yield of the crystal by performing the crystal growth according to the solvothermal method while allowing a predetermined amount of a substance differing in the critical density from the solvent to be present in the reaction vessel; and to prevent mixing of an impurity into the crystal and improve the crystal purity.

The invention relates to an objective designed as a microlithography projection objective for an operating wavelength. The objective has a greatest adjustable image-side numerical aperture NA, at least one first lens made from a solid transparent body, in particular glass or crystal, with a refractive index n_L and at least one liquid lens (F) made from a transparent liquid, with a refractive index NF. At the operating wavelength the first lens has the greatest refractive index nL of all solid lenses of the objective, the refractive index n_F of the at least one liquid lens (F) is bigger than the refractive index n_L of the first lens and the value of the numerical aperture NA is bigger than 1.

Disclosed is a computer-implemented method of pill analysis including the steps of acquiring a pill image having an image frame and detecting contrast shifts within the image frame to locate at least one object with an object outline. A first value for the object(s) is determined, where the value is an area, a position, a length, a width, an angle, a color, a brightness, a code, a shape, a crystal pile size, a crystal geometry, a substance identity, or a character identity. Based on the first and second values, the computer outputs a result to a user.

Bead comprising at least two non-agglomerated solid nanoparticles of core structure comprising only a solid core, or of core-shell structure comprising a solid core surrounded by a solid envelope or shell made up of an inorganic material, said nanoparticles being coated with a non-porous metal oxide.

Process for preparation of the said bead.

Material such as glass, a crystal, a ceramic or a polymer containing said beads.

The invention relates to optical devices for producing and/or transforming polarised electromagnetic emission by means of anisotropic absorption and/or optical rotation effects and/or birefringence and can be used as different polarizers (dichroic, reflecting), lagging layers (retarders), liquid-crystal displays and indicators and also for producing polarising glass for building construction and for sun and antiglare glasses, masks, aprons and faceplates. The inventive optical device is based on at least one molecularly oriented layer of a low-molecular or oligomeric dichroic material which can form a stable lyotropic liquid crystal structure. The projection of at least one anisotropically absorbing fragment of a molecule of the dichroic material on the surface of the molecularly oriented layer of a dipole moment of optical transition is disposed in a parallel position to the optical axis of the molecularly oriented layer at least within several ranges of wavelength of the electromagnetic emission.

The invention relates to a grinding and polishing machine for processing ornamental artificial gems, crystals or glass beads, in particular to a full-automatic ornament grinding and polishing machine. The invention discloses the full-automatic ornament grinding and polishing machine with the characteristics of one-step product forming, integration of all working procedures, high production efficiency and simple structure. The invention realizes the full-automatic processing of crystal diamonds and other ornaments by using one machine. In a main scheme provided by the invention, a spindle assembly is arranged in the middle of a rack, the upper end of the spindle assembly is provided with a turntable, the turntable is provided with a plurality of cantilevers which are uniformly distributed by taking a center axis position of the spindle assembly as a center, and the tail end of each cantilever is provided with a mechanical arm; a feeding and discharging integrated assembly, at least onefront grinding integrated assembly, at least one front polishing integrated assembly, a through-connection integrated assembly, at least one rear grinding integrated assembly and at least one rear polishing integrated assembly are respectively distributed on the rack in a working sequence; and all the assemblies are connected end to end.

In the slot machine 1, there are provided a variable display device having a rotation member on an outer periphery of which a plurality of symbols are formed and the LED lamps arranged within the rotation member, a liquid crystal display device arranged in front of the variable display device, the liquid crystal display device having a light transmittable area through which light passes from a rear side thereof, wherein illumination control of the LED lamps is conducted so as to turn on the LED lamps when the display image on the light transmittable area is able to be displayed without superimposition with the display symbol and so as not to turn on the LED lamps when the display image on the light transmittable area is not able to be displayed without superimposition with the display symbol.

In a crystal oscillator having a crystal blank, and an IC chip having integrated therein an oscillation circuit, the crystal blank has a first excitation electrode disposed on its first principal surface, and an extension electrode extended from the first excitation electrode to a peripheral region of the crystal blank, and folded back to the second principal surface. A first and a second crystal connection terminal are disposed on a first principal surface of the IC chip, and the second crystal connection terminal extends to a central region on the first principal surface of the IC chip to constitute a second excitation electrode. The extension electrode is secured to the first crystal connection terminal through a bump, such that the second principal surface of the crystal blank opposes the first principal surface of the IC chip, thereby holding the crystal blank in parallel with the first principal surface of the IC chip. The crystal blank is excited by the first and the second excitation electrodes.

A liquid crystal display device includes a pair of substrates; a liquid crystal sealed between the substrates; plural pixel regions each having a first pixel electrode formed on one of the pair of substrates and a second pixel electrode separated from the first pixel electrode; a TFT having a source electrode which is electrically connected to the first pixel electrode; a control capacitance portion which has a control capacitance electrode electrically connected to the source electrode and opposed to at least part of the second pixel electrode via an insulating film, and which thereby establishes capacitive coupling between the source electrode and the second pixel electrode; linear projections formed on the other substrate; and apertures formed in the first and second pixel electrodes so as to occupy parts of overlap regions of the linear projections and the first and second pixel electrodes as viewed perpendicularly to the substrate surfaces, for controlling the positions of singular points of alignment vectors of the liquid crystal.

The invention provides a cerium oxide polishing liquid suitable for polishing rock crystals, photomask quartz glass, semiconductor devices and glass-prepared hard disks and polishing low-dielectric-constant materials for interlayer insulating films of semiconductor devices of siloxane and the like. The polishing liquid contains surface modified nano cerium oxide, silicon dioxide, a dispersing agent, an oxidizing agent, an alkaline compound, an alcohol compound and water. Preferably, stearic acid treated nano cerium oxide is selected, the particle size is preferably 10-100 nm, and the mass content is 1-10%; preferably, the particle size of the colloidal silicon dioxide is 40-100 nm, and the mass content is 0.1-5%; preferably, the polishing liquid contains 0.01-5% of the high-molecular dispersing agent, 1-10% of the hydrogen peroxide oxidizing agent, and the balance an alcohol-water mixture, wherein the pH value of a slurry is 8-10. The nano cerium oxide polishing liquid selects the surface modified nano cerium oxide, has addition of a proper amount of the silicon dioxide, thereby reducing the grinding trigger time and improving the processing stability.

The invention relates to an adapter assembly of a polishing and burnishing machine for processing decorations, artificial gems or crystals or glass beads, in particular to an adapter assembly of a polishing and burnishing machine for decorations. The invention provides an improvement on the adapter assembly in a full-automatic polishing and burnishing machine for decorations, mainly aiming at the defects of large labor strength, low production efficiency and complex machine structure and the like in the prior art; and the invention realizes the purposes of high production efficiency, low labor strength and simple structure. By use of the adapter assembly, the decorations can be full-automatically and continuously processed on one machine. The technical scheme of the invention is as follows: an adapter plate is installed at one side of an adaptor seat, the adaptor plate is connected with a reduction gear by a central shaft, the reduction gear is connected with a reduction motor, and a slide block guide rail is installed on the adaptor plate; an upper and a lower groups of elevating assemblies are installed on the adaptor plate, wherein each elevating assembly comprises a fixture positioning block which is movably connected to the slide block guide rail and capable of sliding along the slide block guide rail, and a fixture positioning block elevating cylinder which is installed adjacent to the end part of the adaptor plate and capable of driving the fixture positioning block to move on the slide block guide rail.

A scatter shutter is used to alternately provide non-scattered illumination for autofocus purposes and diffuse illumination for imaging purposes in a microscope system for high-throughput testing of protein samples in a multi-well tray. As the tray is being scanned continuously through the microscope objective for data acquisition, the scatter shutter is intermittently deactivated to allow collimated light to focus on the underside of the tray and produce autofocus signals, and then activated to produce diffused light and to image the protein sample in each well. The timing of each step is synchronized so as to place the droplet in focus prior to energizing the scatter shutter and switching to the imaging mode.

To provide an AT-cut quartz-crystal vibrating piece in which size of the vibrating unit is adjusted to appropriate value, so that the unnecessary vibration is inhibited and degradation of its characteristics is prevented. A mesa-type AT-cut quartz-crystal vibrating piece for vibrating at 38.400 MHz comprising a rectangular excitation unit (31) and a peripheral region (32) formed on the periphery of the excitation unit and having a thickness less than than the thickness of the excitation unit, is represented by the following equation:

Mx/Gx=0.09×n−0.06 (n: natural number)  (1)

Length of a crystallographic x-axis direction of the excitation unit is defined as Mx (mm) and length of the crystallographic x-axis direction of the peripheral region and excitation unit is defined as Gx (mm).

A plurality of modified parts are formed at a first formation pitch for a line arranged along the M-plane of a single-crystal sapphire substrate to construct a modified region and cause a fracture occurring from the modified region to reach a principal surface of the single-crystal sapphire substrate. A plurality of modified parts are formed at a second formation pitch narrower than the first formation pitch for a line arranged along the A-plane of the single-crystal sapphire substrate to construct a modified region and cause a fracture occurring from the modified region to reach the principal surface of the single-crystal sapphire substrate. Along the lines, a knife edge is pressed against a wafer from the side of the single-crystal sapphire substrate opposite from the principal surface of the single-crystal sapphire substrate where the fractures have reached, to cut the wafer along the lines.

The invention relates to a crystal blank automatic grinding and polishing system. The system comprises a first rotating stand, a second rotating stand, a loading station, a butting station, an unloading station, at least one first transfer mechanism and at least one second transfer mechanism, wherein the first rotating stand is provided with an upper semi-sphere grinding station and a polishing station, and a nose is arranged on the first rotating stand; the second rotating stand is provided with a lower semi-sphere grinding station and a polishing station, and a nose is arranged on the second rotating stand; the first transfer mechanism can pick up and release a clamp, and can transfer the clamp among the feeding station, the butting station and the nose on the first rotating stand; and the second transfer mechanism can pick up and release the clamp, and can transfer the clamp among the butting station, the discharge station and the nose on the second rotating stand. The invention also discloses a grinding and polishing machine and an auxiliary machine used by the system. By utilizing the technical scheme, the upper and the lower semi-sphere inclined planes of a crystal blank canbe automatically ground and polished to ensure the quality of grinding and polishing processing, and the advantages of the machine models can be sufficiently utilized to simplify the complex degree of the mechanism action. The crystal blank automatic grinding and polishing system, the polishing machine and the auxiliary machine are easy to manufacture and maintain.

A deposition apparatus supplies a reactive gas obtained by vaporizing a liquid material at a vaporizer 30 into a chamber 10 via a processing-gas pipe 40 and forms a thin film on a semiconductor wafer W due to a thermal decomposition of the reactive gas. The deposition apparatus is provided, in the processing-gas pipe 40, with a crystal gauge 51 detecting a pressure Pq under the influence of mist in the reactive gas and a capacitance manometer 52 detecting a pressure Pg under no influence of the mist. The apparatus further includes a gasification monitor 50 detecting a quantity of mist in the reactive gas on the basis of a difference ΔP between the pressure Pq and the pressure Pg measured by the crystal gauge 51 and the capacitance manometer 52 in order to prevent deposition defects due to the mist in the reactive gas.

The invention relates to a long-term preservation method for a well core, which mainly solves the problem of difficult preservation because a fractured and broken core taken out of a shaft bottom is difficult to cut or difficultly forms the entire plane after being cut. The method is characterized by comprising the following steps of: preparing a casting material; putting the core to be preserved into a U-shaped polyethylene support groove; slowly pouring the casting material into the U-shaped polyethylene support groove filled with the core; and sizing gel at room temperature, cutting the core after solidifying and sizing in a thermostatic drying oven, putting the core into a U-shaped transparent organic glass support groove for secondary casting and smoothing, grinding and polishing the surface of crystal gel in the U-shaped transparent organic glass support groove until the crystal gel is bright and transparent. By the method, the core can be integrally cut, a cut plane is smooth, the original core is preserved permanently and cannot be broken and the core is convenient to observe in all dimensions.