Class 313/2.1 - Cathode ray tube

Subclass of Class 313 - Electric lamp and discharge devices
Definition: Subject matter in which one of the devices is a cathode-ray
No. of patents: 39
Last issue date: 12/18/2007

Number	Title	Issue Date
7309953	Electron beam pumped laser light source for projection television An electron beam pumped laser including a surface-emitting laser faceplate oriented at a non-perpendicular angle. Embodiments are described in which a bending coil bends the electron beam, or in which the faceplate is situated in the direct path of the e-beam emissi...	12/18/2007
6600253	Laterally spaced multiple electron gun color cathode ray tube device A cathode ray tube device in which two deflection yokes and two electron guns are used, but in which only one shadow mask is used. Image uniformity is obtained by creating a partial overlap of the two images created by the two yokes....	07/29/2003
6566791	Packing device for CRT funnel Disclosed is a packing device for CRT funnels vertically stacked over and over, receiving a plurality of CRT funnels, comprising a planar supporter having a plurality of through holes, each through hole allowing a neck of the funnel to be inserted thereth...	05/20/2003
6559575	Cathode ray tube and method of manufacturing the same, and color selecting member for cathode ray tube and method of manufacturing the same A cathode ray tube and a color selecting member, which can be manufactured without defects by using an existing projection aligner of a simple structure and can always produce a picture of high quality, in which phosphor layer has a pattern in stripes in ...	05/06/2003
6531808	Beam index type cathode ray tube A beam index type cathode ray tube having a screen divided into a plurality of areas and a plurality of electron guns corresponding to the divided screen areas. The beam index type cathode ray tube includes a tube of which inner atmosphere is maintained i...	03/11/2003
6489708	Laterally spaced multiple electron gun color cathode ray tube device A cathode ray tube device in which two deflection yokes and two electron guns are used, but in which only one shadow mask is used. Image uniformity is obtained by creating a partial overlap of the two images created by the two yokes....	12/03/2002
6472833	Laser cathode ray tube A laser CRT includes a cathode, a modulator having an orifice for forming an electron beam from the electrons emitted by the cathode, and a beam directing unit directing the electron beam formed by the orifice of the modulator to the laser screen of the l...	10/29/2002
6437500	Seamless electron transfer for multiple-gun direct view CRTS A CRT for the display of a large screen television set which includes a tube envelope having a pair of tube necks and a phosphor display screen, a pair of electron guns arranged in a same horizontal plane and each positioned in a different one of the tube...	08/20/2002
6331749	Excitation method of laser cathode-ray tube The laser cathode ray tube has a laser screen; a focusing system for focusing the electron beam on the laser screen; a deflection system for deflecting the electron beam; and at least two electron guns with cathodes for generating at least two electron be...	12/18/2001
6304034	Cathode ray tube and image correcting method With the cathode ray tube and image correcting method of the invention, inside the cathode ray tube, an index electrode for outputting an electric detection signal according to an incidence of electron beams is provided in an over-scan region of the elect...	10/16/2001
6259206	Cathode ray tube A cathode ray tube having an evacuated envelope including a panel section having a front face portion including a sloped sidewall, the sloped sidewall and an outer periphery portion being joined at mold match line, a neck containing therein an electron gu...	07/10/2001
6239537	Cathode ray tube including a plurality of necks A vacuum envelope of a cathode ray tube comprises a faceplate and a rear envelope bonded to the faceplate. The rear envelope includes a rear plate opposed to the faceplate, a side wall, a plurality of funnels extending from the rear plate, partition walls...	05/29/2001
6235669	Viscosity tailoring of fused silica A synthetic fused silica composition comprising silica and aluminum, wherein said aluminum is generally present in at least 7 parts per million and the composition has a viscosity of at least 1014.5 poise....	05/22/2001
6177757	Image display apparatus with integrally rear plate and support bodies An envelope of a cathode ray tube includes a substantially rectangular flat face plate, and a substantially rectangular flat rear plate opposed to the face plate with a side wall being interposed therebetween, a plurality of funnels extending from the rea...	01/23/2001
6150760	Cathode ray tube An implosion protection-enhanced cathode ray tube (CRT) includes an evacuated envelope structured from a display panel section, a neck, and a funnel section. The CRT comes with a reinforcing metal band for implosion protection clamped by thermal shrink-fi...	11/21/2000
6133675	Cathode ray tube with integral rear envelope A vacuum envelope includes a flat face plate having a phosphor screen formed on the inner surface of the face plate, and a flat rear plate opposed to the face plate with a side wall interposed therebetween. A plurality of funnels extend from the rear plat...	10/17/2000
5969477	Cathode-ray tube apparatus with a common deflection driving circuit On a rear plate of a vacuum envelope are provided a plurality of electron guns for emitting electron beams to a phosphor screen, and deflection devices for deflecting the plurality of electron beams emitted from the respective electron guns so as to divid...	10/19/1999
5952767	Index-type color cathode ray tube First and second index signal phosphor layers are formed on a phosphor screen that is formed on the inner surface of a face plate. A rear plate is provided with first and second light sensing units for detecting signal lights from the first and second ind...	09/14/1999
5877823	Projection television device A projection television device includes a projection cathode-ray tube for red (1a), a projection cathode-ray tube for green (1b) and a projection cathode-ray tube for blue (1c) which are provided with phosphor layers (5a, 5b and 5c), respectively, each ha...	03/02/1999
5831373	Cathode ray tube with plural electron gun assemblies A cathode ray tube includes a vacuum envelope having a face plate (1), a continuous phosphor screen (7) formed on the inner surface of the face plate (1), the phosphor screen (7) including a plurality of scanning regions (R1-R15) disposed in rows and colu...	11/03/1998
5831372	Cathode ray tube with supporting members each having a first and second support portion for improved bearing of atmospheric pressure between the faceplate and the rearplate A vacuum envelope includes a flat faceplate and a flat rear plate opposed to the faceplate. A phosphor screen is formed on an inner surface of the faceplate. A plurality of support members are located between the faceplate and the rear plate and bear atmo...	11/03/1998
5780967	Electron tube with a semiconductor anode outputting a distortion free electrical signal To eliminate a distortion of an output image detected by a semiconductor device serving as an anode in an electron tube, a faceplate is configured to a planar shape and a window provided on the semiconductor device has a pincushion outer profile in which ...	07/14/1998
5751094	Cathode ray tube construction for big screen display using a plurality of electron guns A phosphor screen is formed on an inner surface of a faceplate and has a plurality of regions which are dividedly scanned by electron beams emitted from a plurality of electron guns. Support units are arranged between the faceplate and a rear plate of an ...	05/12/1998
5712525	Shadow mask for a mutltiple element cathode ray tube A cathode ray tube device has multiple elements for generating a display. Each of the relatively large number of elements has its own electron gun and deflection assembly and a shadow mask. A large number of these subunits are connected into a regular arr...	01/27/1998
5506467	Cathode-ray tube and method of manufacturing the same A color cathode-ray tube comprises an envelope having rectangular flat face and rear plates opposing each other. A phosphor screen is formed on an inner surface of the face plate. Mask support members are mounted on an inner surface of the rear plate. A s...	04/09/1996
5498921	Cathode ray tube apparatus and method of manufacturing the same A picture apparatus includes a vacuum envelope which has a phosphor screen and a plurality of electron gun assemblies for emitting electron beams to the phosphor screen, and a deflection device for deflecting the electron beams emitted from the electron g...	03/12/1996
5473217	Cathode-ray tube having multiple gun and deflection assemblies in an evacuated chamber A cathode ray tube device has multiple elements for generating a display. Each of the relatively large number of elements has its own electron gun and deflection assembly. A large number of these subunits are connected into a regular array in which each u...	12/05/1995
5418426	Picture tube having a plurality of guns It is known to provide a large screen area using a picture tube having a plurality of guns. The object is to provide a transition of continuous brightness, so that the partial picture transitions are no longer perceptible. This is achieved in that a pictu...	05/23/1995
5365142	Cathode-ray tube wherein plural regions of phosphor screen are scanned independently of one another A cathode-ray tube includes an envelope having a rectangular face plate and a rectangular, flat rear plate opposed to the face plate. A phosphor screen is formed on the inner surface of the face plate and has a number striped phosphor layers extending in ...	11/15/1994
5111103	Plural unit monitor A mosaic of monitor units contained in a single covering provide higher-resolution monitor displays proportional to the number of monitor units contained in the monitor casement. The extension of the flat viewing surface of the monitor in one or more dire...	05/05/1992
5032756	Color cathode ray tube and envelope for use with the color cathode ray tube A color cathode ray tube and an envelope for use with the color cathode ray tube in which a metal plate is interposed between a panel section and a plurality of funnel and neck sections, each of which combination having one electron gun disposed internall...	07/16/1991
4994704	Cathode ray tube and an envelope therefor A color cathode ray tube includes a vacuum envelope including a panel having a single glass faceplate including an inner surface and central axis and a skirt extending from the faceplate, a rear metal plate hermetically connected to the skirt through a fi...	02/19/1991
4825067	Coupling means for aligning fiber optic bundles between X-ray image intensifier and image pickup tube An X-ray television apparatus includes an X-ray image intensifier and an imaging unit. The X-ray image intensifier converts an X-ray image into a visible image. The visible image is transmitted to the imaging unit by optical fiber bundles coupled with eac...	04/25/1989
4777407	Color cathode ray tube device A color cathode ray tube includes a screen, a shadow mask and an electron gun section. The electron gun section comprises a plurality of separate unit electron guns. The screen is divided into a plurality of subregions each of which is scanned by an indiv...	10/11/1988
4714856	Color cathode ray tube with plural electron gun assemblies In a color cathode ray tube, a vacuum envelope is provided with a plurality of necks and a plurality of funnels for coupling the respective neck to a single panel. A plurality of electron gun assemblies are received in the neck, respectively and a plurali...	12/22/1987
4712038	Color cathode ray tube with plural electron gun assemblies In a color cathode ray tube, a panel having a single faceplate is coupled to a plurality of necks through a plurality of funnels, respectively. A plurality of electron gun assemblies are received in necks and a plurality of deflection units are mounted ar...	12/08/1987
4359660	Series diode X-ray source A multiple cathode-anode pulsed X-ray source utilizes a first X-ray transparent cathode spaced apart from a solid tungsten first anode between which is disposed a second tungsten anode spaced apart from the first cathode and electrically connected to a se...	11/16/1982
4070574	Magnifying image intensifier An improvement in a magnetically focused image intensifier for increasing the usable range of magnification without degradation of image quality and while keeping to a minimum the power requirements of the focusing coils. The improvement comprises an arra...	01/24/1978
4051513	Color image projecting apparatus A color image projecting apparatus having three cathode ray tubes which produce different respective color images and including two projecting lenses. A first primary color image reproduced on a first cathode ray tube is projected on a screen through a fi...	09/27/1977

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Class 313/2.1 - Cathode ray tube