115 results about "Cathode ray tube" patented technology

The invention relates to a backlight unit for liquid crystal displays, etc.; and its object is to provide a backlight unit not involving the problem that the emitted light leaks out of the optical waveguide, even when the space around the cold-cathode tubes in the light source unit for it is filled with a liquid of which the refractive index is nearly the same as that of the glass material that forms the outer wall of the cold-cathode tubes. The backlight unit comprises a housing 6 which houses cold-cathode tubes 2, 4 therein and of which the inner surface is coated with a light reflector 10; a transparent liquid filled in the housing 6; and an optical waveguide 1 made of a transparent substance and having a light-emitting surface S. The reflective surface of the light reflector 10 has a cross-section profile of X-T-U-V-W-Y, on which the light emitted by the cold-cathode tubes 2, 4 is reflected, and the thus-reflected light is led to the light-emitting surface S of the optical waveguide 1 at an incident angle not smaller than the critical angle to the surface S.

The invention relates to a graded efficient electric precipitator, comprising a cathode ray, a baffling plate type anode plate with a dust collection ditch; wherein the cathode ray is a tube with two symmetrical edges, a transverse section of each anode plate is folded into four folds to form two concave zones and two convex zones, concave zones of the two adjacent rows of anode plates are corresponding to concave zones of the two adjacent rows of anode plates and convex zones of the two adjacent rows of anode plates are corresponding to convex zones of the two adjacent rows of anode plates; symmetric center points of the two concave zones of the two adjacent rows of the anode plates are vertically arranged on the cathode ray, the two symmetrical edges of the cathode ray are respectively faced the concave zones of the two adjacent anode plates, multiple 'Y'-shaped bent splinters are welded on the two symmetrical edges of the cathode ray from top to bottom at uniform spacing, two bent cuspidal points at the head part of the 'Y'-shaped bent splinters are respectively faced with the two board surfaces of the concave zones of the anode plates. In the invention, the two bent cuspidal points at the head part of the 'Y'-shaped bent splinters are respectively faced with the anode board surfaces, so that critical coronal current and breakdown voltage of the cathode ray is increased, which in turn improves efficiency of dust collection; in addition, height of the two bent cuspidal points of the 'Y'-shaped bent splinters can be adjusted, requirements on dust collection of different power can be met and the application range is wide.

A game machine (GM1) is provided with a target (TG), a CRT (312), a card reader (CD) and a cash-box (CB) on a front face. A player inserts his own ID card into the card reader (CD). The CRT (312) displays information concerning a game and has a function of a game display when a game adopting the darts is executed. The target (TG) is not only target hit by an arrow but also a tool by which players obtain points, areas or numerals by arrow throwing. A button (PB) is provided on the game machine (GM1) for “Player Change” of the darts, which is used as an operation input switch (305) for the control unit (100). Therefore, a game is provided adopting a target hitting game which makes even a beginner easily join and is highly entertaining.

An x-ray tube includes a cathode positioned within a vacuum chamber and configured to emit electrons. The x-ray tube includes an anode positioned within the vacuum chamber to receive electrons emitted from the cathode and configured to generate a beam of x-rays from the electrons, a window positioned to pass the beam of x-rays therethrough, and an electron collector structure attached to the x-ray tube having an aperture formed therethrough to allow passage of x-rays therethrough. The aperture is shaped to prevent diffracted x-rays from combining with the beam of x-rays passing through the window.

A glass composition improves the bio-solubility (solubility to physiological salt water), and is suitable for manufacturing inorganic fiber and a molded product of such inorganic fiber. The glass composition to be used for manufacturing inorganic fiber is characterized by containing SiO2 by 52 to 72 wt %, Al2O3 by less than 3 wt %, MgO by 0 to 7 wt %, CaO by 7.5 to 9.5 wt %, B2O3 by 0 to 12 wt, BaO by 0 to 4 wt %, SrO by 0 to 3.5 wt %, Na2O by 10 to 20.5 wt %, K2O by 0.5 to 4.0 wt % and P2O5 by 0 to 5 wt %. The raw material of the glass composition contains cathode ray tube glass and / or liquid crystal glass by 0 to 50 wt %.

A cold-cathode tube lighting device uniformly lights a plurality of cold-cathode tubes using a common power source, and maintains the luminance of each cold-cathode tube uniformly in the longitudinal direction thereof at high precision. A first block converts a direct-current voltage to one pair of alternating-voltages. Since leakage impedances of step-up transformers are low, the first block functions as one pair of low-impedance power sources. Each second block is connected to each cold-cathode tube. A ballast inductor stabilizes tube current by resonating with a matching capacitor during lighting of the cold-cathode tube. A combined impedance of the matching capacitor and a peripheral stray capacitance is matched with an impedance of the ballast inductor, for each cold-cathode tube. Since a delay circuit shifts phases of two pulse waves with respect to each other, a phase difference between the alternating-voltages is shifted from 180°.

An outdoor lighting system with cold cathode ray tubes is disclosed. The individual lights are self-powered by one or more batteries carried in the lighting structure itself. In one embodiment, one or more rechargeable batteries are located within a relatively elongated base structure of the lighting component. In one particular embodiment, this elongated base structure also serves as a stake that is utilized to fix the lighting fixture in a particular outdoor location, such as a lawn, pathway, driveway, or patio.

The invention discloses a laval nozzle type magnetic confinement hollow cathode, relates to the field of aerospace and aims to solve the problems that as for the structures of existing hollow cathodes, the properties of the hollow cathodes are reduced and the service life of the hollow cathodes is shortened. A cathode tube is sleeved with an outer tube, a cathode top plate is disposed at the bottom of the cathode tube, a contact pole is disposed at the bottom of the outer tube, small holes are formed in the centers of the cathode top plate and the contact pole correspondingly, and a small-holechannel from the cathode top plate to the contact pole is a gradual-shrinkage gradual-expansion type channel. The laval nozzle type magnetic confinement hollow cathode is applicable to hollow cathodes.

The invention discloses a cold cathode structure capable of allowing space electric propulsion to be started quickly. The cold cathode structure comprises a cathode tube, an emitter, a heat shield, a cathode top, an igniter electrode, an insulator, a housing and a flange. One end of the cathode tube is arranged to the flange, and the other end thereof is provided with the emitter, and is fixed by the cathode top; the cathode top is provided with a center hole; the emitter is in a hollow pipe shape, is arranged in the cathode tube and is closely contacted with the cathode top; the heat shield is arranged outside the cathode tube and is close to the cathode top, and covers the cathode tube portion equipped with the emitter; the igniter electrode is connected with the housing through the insulator; one end of the housing is connected with the insulator, and the other end thereof is connected with the flange; and the flange is provided with an installation hole. The cold cathode structure can start a cathode and an electric thruster to discharge quickly without pre-heating of a heater, and starting time of a spacecraft electric propulsion system is reduced from hundreds of seconds to one second and below, thereby greatly improving response performance of the electric propulsion system; and the cold cathode structure can be used in the field of space propulsion needing to be started quickly.

The invention provides a method for preparing green emitting phosphor. In the method, burnt green emitting phosphor is cleaned; after the burnt green emitting phosphor is dispersed, the surface of the green emitting phosphor is treated; silicon dioxide is added to the surface treated phosphor powder; the mixture of the phosphor powder and the silicon dioxide is coated; the processed phosphor powder is dehydrated and dried; the dried phosphor powder is screened. The cathode-ray tube used green emitting phosphor can increase the residue of the phosphor powder at the skirt, which is effective for controlling cathode-ray tube aluminium backing bubbles or turned-up edges.

The invention discloses a cathode ray structure based on bionics, a discharging system and a method. A supporting piece is included, a plurality of discharge electrodes are arranged on the supportingpiece in the circumferential direction, each discharge electrode comprises a base connected with the supporting piece, discharge tips with different lengths are arranged on each base in the circumferential direction in a staggered manner, and a center discharge tip is vertically arranged at the middle portion of each base; the length of each center discharge tip is larger than the lengths of the corresponding discharge tips arranged on the corresponding base in the circumferential direction, the center discharge tip is used for reducing the distance between the cathode ray structure and an anode, the formed electric field intensity enables the driving force of an electric field obtained after smoke charging to be high, and the discharge tips arranged on the bases in the circumferential direction are used for increasing spatial distribution homogeneity of electric charge, and therefore the smoke in the space can be better charged.

A portable electronic apparatus (1) and a method for controlling an operational interface of the portable electronic apparatus). The apparatus comprises a transmitter unit (10) including a transmitter (11); a receiver unit (20) including a receiver (21); and an operational interface. The transmitter and the receiver are arranged such that a signal transmitted by the transmitter (11) is received by the receiver (21) when at least the transmitter unit is facing towards and is positioned in proximity of an external surface (31,44). The transmitter may be an LED, a cold cathode ray tube, or IR or UV transmitter. The receiver may be an optical sensor.