76 results about "Image tube" patented technology

The invention discloses a soft matter comprehensive measuring device based on novel hybrid optical tweezers, comprising a laser, a first planoconvex spotlight, a second planoconvex spotlight, a first reversible reflector, a first reflector, a liquid crystal spatial light modulator, a second reversible reflector, a third planoconvex spotlight, a fourth planoconvex spotlight, a first dichroic mirror, a microscope objective, a two-dimensional electric platform, a halogen lamp, a microscope imaging tube mirror, a second dichroic mirror, a position detector imaging lens, a position detector, a camera and a computer, wherein the device can effectively work in the modes of high precision single optical tweezers and holographic optical tweezers, and the computer is respectively connected with theliquid crystal spatial light modulator, the camera and a position sensor signal inception system through signal lines. According to the invention, the measurement of simultaneous capture operation and interaction of a plurality of particles in liquid phase can be realized, and the measurement of broadband rheology characteristics of a microfluid by using a single particle probe can be realized.

The invention discloses an optical fiber face plate fractal filament arranging method and filament arranging dies thereof. The method comprises the steps of (1) monofilament drawing, (2) primary composite rod arrangement and primary composite filament drawing, (3) secondary composite rod arrangement and secondary composite filament drawing and (4) plate arrangement. In the step of secondary composite rod arrangement and secondary composite filament drawing, primary composite filaments are put into a primary composite filament arranging die to carry out secondary filament arrangement to obtain secondary composite rods, the difference of two adjacent primary composite filaments in the vertical direction is made to be the radius of one unit filament when filament arrangement is carried out, and the secondary composite rods are put into a drawing machine to carry out tertiary filament arrangement to obtain secondary composite filaments. In the step of plate arrangement, the secondary composite filaments are put into a secondary composite filament arranging die to carry out tertiary filament arrangement to obtain a tailored plate. When filament arrangement is carried out, the distance of the two adjacent secondary composite filaments in the vertical direction is half of the opposite side distance of the primary composite filaments. The multifilament boundary in the optical fiber face plate made through the filament arranging method is free of clearance, the definition of image transmitting and air tightness are improved, and therefore the performance of an image tube is improved and the service life of the image tube is prolonged.

A current-adjustable charge pump circuit comprises a charge pump current regulating circuit which is connected to the external current source and a charge pump switching circuit connected with the charge pump current regulating circuit. The invention is characterized in that the charge pump current regulating circuit is composed of a NMOS current mirror circuit and a PMOS current mirror circuit which are connected. The NMOS current mirror circuit and PMOS current mirror circuit are respectively composed of a current mirror source tube branch line and a current mirror image tube branch line which are correspondingly connected with a switching tube. A relatively-fixed proportional dimension is provided between the mirror source tube and the mirror image tube on the corresponding branch line. The number of the mirror source branch line or the mirror image branch line is selected through the controlling of the control signal to the on-off of the control switching tube, thereby the output currents of the NMOS current mirror circuit and PMOS current mirror current are changed. The regulation to the charging current and discharging current of the charge pump is realized through the charge pump switching circuit. The invention not only can conveniently and smartly regulate the current of the charge pump, but also can regulate to obtain a current which has a relationship that the current is a fractional part of the input current source.

The indium seal type fluorescent screen includes optical fiber faceplate and metal seal ring. Characters are that groove for filling indium is setup on the metal seal ring; clip body is setup on edge of the optical fiber faceplate; through indium solder filled inside the groove, the clip body is connected and sealed to the metal seal ring. Procedure for preparing image tube of using the fluorescent screen includes steps: fabricating metal seal ring; molding optical fiber faceplate, and process for metallizing the clip body; filling indium into the groove on the ring; sealing faceplate and the ring by using indium; fusion welding the indium-sealed ring of the faceplate and shell of tube so as to form the shell of tube, which is sealed to light cathode. Advantages are: cold and heat shock resistance, high intensity mechanical shock resistant, higher stability and service life, carrying out sealing light cathode and shell of tube at same time so as to simplify technical procedure.

The invention discloses a light-emitting diode (LED) display screen constant-current driving circuit with a plurality of mirror image ratios. The driving circuit comprises a reference voltage source circuit, a constant-current regulation circuit, a voltage sampling circuit, a current mirror image ratio self-regulation circuit, a current mirror circuit and a display frame data processing circuit. The reference voltage source circuit comprises a seven-stage ring oscillator and a band-gap reference circuit. The constant-current regulation circuit comprises a comparator, a current biasing tube and an external grounding resistor. The current mirror circuit comprises a plurality of current mirror image tubes. The display frame data processing circuit comprises a plurality of display frame data processing units. An output driving channel port of the circuit is provided with a voltage-resistant circuit comprising two N-channel metal oxide semiconductor (NMOS) tubes. A first-stage current mirror group comprises a plurality of current mirror image tubes. A second-stage current mirror group comprises a plurality of current mirror image tubes. The driving circuit has a plurality of mirror image ratios, and has the advantages that gray levels of an LED display screen can be regulated and added, the brightness contrast of the LED display screen can be improved, the problem of voltage resistance of the output driving channel port is solved with lower cost, and the like.

A speed bump camera mounting system (10) is provided for capture of photographic images or license places on passing vehicles. The system includes an elongated speed bump (12) for mounting on a driving surface (14). A pair of cameras (46) are mounted in angled image tubes (38) to deliver photographic (video) images to an external control system (18). Visual enhancement elements in the form of reflectors (44) and stripes (42) help a driver to center over the speed bump (20) during travel, thus aligning the license plate with the camera (46).

The invention discloses a method for measuring absorptivity and sensitivity of the same polyalkali photocathode, which comprises the following steps of: 1) preparing two image tubes by the same process, arranging no micro-channel plate in each tube, plating a chromium electrode in a half area of the inner surface of an anode output window, preparing a layer of polyalkali photocathode on the inner surface of anti-halation glass of one image tube to serve as a test tube, not preparing a photocathode on the inner surface of the anti-halation glass of the other image tube, so that the other image tube is used as a control tube; 2) installing the image tube on a reflectivity tester for testing to obtain reflectivity R1 and R2 of the tested and control tube; 3) installing the image tube on a transmittance tester for testing to obtain the transmittance T1 and the transmittance T2 of the test tube and the control tube; 4) calculating the absorptivity A = (R2 + T2)-(R1 + T1); and 5) installing the test tube on a sensitivity tester, recording the input luminous flux phi, and measuring the cathode current I bright and I dark, so that the sensitivity S is equal to 2 * (I bright-I dark)/phi. The method is simple to operate and high in precision.

The invention discloses a three-channel microscope interface which includes a housing, a beam splitting module and a tube lens. Three light holes are disposed in the housing. The light splitting module is disposed in the housing, and includes a first dichroscope and a second dichroscope which are arranged in parallel. Incident mixed light passes through the tube lens and falls onto the first dichroscope to produce first transmitting light and first reflecting light. The first transmitting light emits from the light holes at the corresponding position on the housing. The first reflecting light falls onto the second dichroscope to produce second transmitting light and second reflecting light. The second transmitting light and the second reflecting light emit respectively through the light holes at the corresponding positions on the housing. Optical paths of the incident light from the tube lens to image planes of the light holes are the same. The interface allows three cameras to share one imaging tube lens, the imaging amplification factors of the channels are exactly the same, and when large samples are subjected to scan imaging, no problem will occur in the stitching of the channels and the matching of all the channels.

The invention discloses a circuit and a method for detecting an inductance peak current of a DC-DC (direct current-direct current) converter. The circuit of DC-DC converter comprises a plurality of power switching tubes and an inductor. Through arranging an image tube, through which the current of a first power switching tube flows in an imaging manner in a certain proportion, a detection resistor which is connected with the image tube in series, and an operational amplifier which is bridged at two ends of the detection resistor, the image current flowing through the image tube can generate a certain pressure drop on the detection resistor; the operational amplifier is used for detecting the peak current; and when the operational amplifier detects that the current passing through the inductor reaches a preset peak value, an efficient signal is outputted to a control circuit from the output end of the operational amplifier, and then the control circuit generates a feedback control signal to control the power switching tubes, thereby completing the detection and feedback control process for the inductance peak current. The circuit and method for detecting the inductance peak current of the DC-DC converter have the advantage of precisely and quickly detecting the current and are used for increasing the performance of a DC-DC power conversion system.

The invention relates to a light cone coupling imaging device which has function of low-light level imaging or ultraviolet imaging and has high image resolution ratio and high definition. The imaging device comprises an image reinforcing device and a light cone. A small tip of the light cone is coupled with an image sensor, and a large tip is coupled with the image reinforcing device. The invention also relates to a light cone coupling imaging device resulted from the alteration of an ordinary camera or an ordinary video camera, wherein the light cone coupling imaging device comprises an image reinforcing device, a light cone, a lens status simulating module, an image tube synchronous control circuit and a focusing driving conversion circuit. In addition, the lens is replaced by an ultraviolet lens, and the image reinforcing device is replaced by an ultraviolet image reinforcing device, thereby the image formation of an ultraviolet wave band is achieved. Further, the invention relates to an alteration method of the imaging device.

The invention provides a single-tube resolution testing device of a super-second-generation low-light level image intensifier. The device comprises an optic guide rail, a sliding pedestal, a mechanical adjusting module, a light source, a light source uniform attenuation and objective image projection module, an image tube clamp, and a monocular microscope module. The sliding pedestal, the mechanical adjusting module, and the image tube clamp are divided into left and right parts including a left sliding pedestal and a right sliding pedestal, a left mechanical adjusting module and a right mechanical adjusting module, and a left image tube clamp and the right image tube clamp. The optic guide rail, the sliding pedestal, and the mechanical adjusting module are arranged from bottom to top; the light source, the light source uniform attenuation and objective image projection module, the left image tube clamp, and the monocular microscope module are arranged on the mechanical adjusting module successively from left to right in a central coaxial mode. All parts are connected by bolts. The left sliding pedestal and the right sliding pedestal enable the parts arranged on the left sliding pedestal and the right sliding pedestal to move or locked on the optical guide rail.

The invention discloses a packaging method of a micro-light image tube. The packaging method comprises the following steps that a sand blasting machine is used for carrying out sand blasting treatmenton the outer surface of a bare tube; wires are orderly welded on the bare tube, and an accessory is adhered and assembled on the bare tube with welded wires by using glue, and absolute ethyl alcoholis used for cleaning the micro-light image tube which has been assembled, and the residual absolute ethyl alcohol is blown completely; the glue is poured into a glue filling cylinder, and the glue filling cylinder is fixed at the upper end of the micro-light image tube through a clamp; the glue filling cylinder which is fixed through the clamp and the micro-light image tube are placed in a vacuumcover and vacuumized; the glue filling cylinder which is fixed through the clamp and the micro-light image tube are placed in a drying oven to be dried; secondary cleaning is carried out on the micro-light image tube; and the micro-light image tube is dried at the room temperature, and an insulating ring is adhered to the micro-light image tube by using insulating glue. By virtue of the packagingmethod of the micro-light image tube, it is ensured that the produced micro-light image tube has high sealing performance and insulativity, the packaging quality of the micro-light image tube is improved, and a good use effect is achieved in the practical application process.

The invention discloses an automatic laptop screen dimming system. A photoelectric sensor is installed nearby a laptop camera and is in electrical output connection with an ADCO809 digital-to-analog converter, the ADCO809 digital-to-analog converter is in electrical output connection with a single-chip microcomputer which is in two-way electrical output connection with a voltage regulator, and an electric image tube is in two-way electrical connection with the single-chip microcomputer. The brightness value displayed by the electric image tube is transmitted to the single-chip microcomputer, the brightness value sensed by the photoelectric sensor and the screen brightness value of the current electric image tube are recorded through the single-chip microcomputer, the voltage value adapted to screen brightness of the current environment is achieved through calculation of the single-chip microcomputer, the laptop screen is capable of being self-regulated according to the surrounding environment, energy sources are saved, and user's eyes can be protected to the greatest degree.

A video calibration device comprising an elongated image tube having a length, a first opening at one end of the image tube and a second opening at the opposite end of the image tube. The device includes an elongated sensor tube having a length, a first opening at one end of the sensor tube and a second opening at the opposite end of the sensor tube. The first opening of the sensor tube is adapted to support a video calibration sensor. A video calibration sensor is disposed in the first opening of the sensor tube. The sensor tube is sealingly secured to the image tube at an angle whereby the second opening of the sensor tube and the second opening of the image tube are substantially juxtaposed.

The invention discloses a longitudinal banknote counting and distinguishing machine, which comprises a machine body. A shell is arranged outside the machine body; the upper surface of the machine body is provided with a banknote feeding table; the bottom surface of the banknote feeding table and the upper surface of the machine body form a certain inclination angle; a banknote outlet is arranged below one side of the machine body; a banknote pressing structure is arranged at the banknote outlet; a banknote outlet table is arranged below the banknote pressing structure; the upper surface of the shell is provided with an L-type cover plate; one side of the shell is provided with a display screen; a controller is arranged below the display screen; and the controller is respectively electrically connected with a first-level counterfeit distinguishing device, a second-level counterfeit distinguishing device, an alarming device, a CIS image tube and a counting device. Through arranging the CIS image tube, the first-level counterfeit distinguishing device and the second-level counterfeit distinguishing device in the machine body, authenticity of the banknote can be quickly and accurately verified; the banknote amount can be counted accurately through the counting device; and in addition, the authenticity, the amount and other information of the banknote can be displayed in the display in real time.

The invention provides a method for adjusting an image tube MCP (micro-channel plate) voltage to improve imaging quality of a night vision viewer, aiming at solving the overexposure problem when a UV near infrared digital camera shoots fingerprints on a white background. The method comprises the following steps of step 1, externally connecting two of four lead wires which are connected with an image tube and a high voltage power supply box corresponding to the MCP anode 3 and the MCP cathode 4 with lead wires, so as to perform voltage measurement; step 2, fixing illumination conditions, measuring MCP initial voltage value of the image tube in a dark room or a camera obscura 1, and recording the MCP initial voltage value; step 3, adjusting a knob of a potentiometer 5 corresponding to the high voltage power supply box, measuring the MCP voltage value after the knob is adjusted in real time, and adjusting the voltage of the image tube to a reference voltage value; and step 4, after assembling, identifying whether the camera works normally or not after the voltage is adjusted according to the overall shooting situation of the night vision viewer, if the night vision viewer shoots too slowly, the night vision viewer is judged to abnormally work, thus, the MCP lead wires are externally connected again, and the knob of the potentiometer is adjusted back along a clockwise direction.

The invention provides a current detection circuit for a PWM/PFM dual-mode DC-DC switching power supply. The detection circuit is used for carrying out high-side switching tube peak current detectionand inductive current zero-crossing detection, carrying out zero-crossing cycle counting, and when five consecutive cycles have zero crossing, triggering a PWM mode to be switched to a PFM mode. The current detection circuit is an on-chip circuit and comprises a peak current detection circuit, an inductive current zero-crossing detection circuit and a zero-crossing cycle counting circuit. By configuring source end voltage of a current mirror image tube, mirror image precision of the current is ensured; by detecting source end current of the mirror image tube, a peak current detection functionis realized; and by sampling drain end voltage of SN of an NMOS transistor, when the voltage rises from a negative level to a positive level, a zero-cross signal is output, and zero-crossing cycle counting is started, thereby realizing inductive current zero-crossing detection and counting functions. The reference circuit is simple in structure and high in precision, and is suitable for the PWM/PFM dual-mode DC-DC switching power supply.

A subject of the present invention is to provide for a shadow mask material for a color picture tube with excellent tensile strength and excellent high temperature creep strength, a shadow mask made of the shadow mask material and a color picture tube with the shadow mask. Material for a shadow mask is made from low carbon steel containing manganese of equal or more than 0.60 wt % and aluminum of 0.002 to 0.12 wt %. A shadow mask is made of the material and the shadow mask is installed in a picture image tube.

The invention relates to a banknote counter, including a housing, a banknote transmission track, a banknote inlet device, a banknote outlet device and a CIS device. The banknote transmission track, the banknote inlet device, the banknote outlet device and the CIS device are all disposed in the housing. A banknote inlet end and a banknote outlet end are disposed on the banknote transmission track. The CIS device is located between the banknote inlet end and the banknote outlet end which are opposite to each other on the banknote transmission track. The CIS device comprises an upper image tube and a lower image tube. The housing is provided with a flip cover which can be flipped relative to the housing. The upper image tube is mounted at a flipping end of the flip cover. A mounting cavity for mounting the lower image tube is disposed on the banknote transmission track. The upper image tube and the lower image tube are opposite to each other when the flip cover is in a buckled state relative to the housing. Two ends of the upper image tube and the lower image tube are respectively provided with gap balance assemblies. A locking assembly for maintaining the buckled state is disposed between the flip cover and the housing. Through the technical scheme, the invention can provide the banknote counter, in which the CIS device is easy to clean and the gaps of the upper image tube and the lower image tube are balanced.