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1. 发明专利

JP2001093402A STRUCTURAL BODY FOR SIDE HEATED IMMERSED CATHODE AND CATHODE-RAY TUBE USING THE SAME 失效
公开(公告)号：JP2001093402A
公开(公告)日：2001-04-06
申请号：JP27175999
申请日：1999-09-27
申请人： HITACHI LTD , HITACHI ELECTRONIC DEVICES CO
发明人： TAGUCHI TADANORI , TAKAKURA HIROSHI , SUZUKI YUKIO , SHIBATA MICHIHIDE , SAITO SHUNJI , NONAKA IKUMITSU
IPC分类号： H01J1/28 , H01J9/04 , H01J29/04
摘要： PROBLEM TO BE SOLVED: To improve boding strength of a high melting point metallic porous base body which constituted a structural body for a side heated immersed cathode with a cup-shaped holder, and to secure reliability of the bonding, and to greatly improve efficiency in a bonding work, and to provide a cathode-ray tube of high brightness, high resolution, and a long life. SOLUTION: A structural body for a cathode comprises a cathode pellet 4 wherein a thermoelectron emitting substance 3 is immersed in a high melting point metallic porous base body 1, a cup-shaped holder 2 which is bonded with planes other than an electron emission plane 1c of the high melting point metallic porous base body 1, a heater 6 whose head portion faces the cup-shaped holder 2, and a sleeve 5 which is bonded with a sidewall of the cup-shaped holder 2, wherein the cup-shaped holder 2 has an inner base 2a that is bonded with a base 1b opposite to the electron emission plane 1c of the high melting point metallic porous base body 1 and has a concave area 1c for forming a fine clearance between the bonded two bases.

2. 发明专利

JP2000340097A IMPREGNATION TYPE CATHODE AND ITS MANUFACTURE 失效
公开(公告)号：JP2000340097A
公开(公告)日：2000-12-08
申请号：JP14663999
申请日：1999-05-26
申请人： HITACHI LTD
发明人： NONAKA IKUMITSU , TAGUCHI TADANORI
IPC分类号： H01J1/28 , H01J9/04 , H01J29/04
摘要： PROBLEM TO BE SOLVED: To obtain a cathode with desirable stable characteristics from the beginning and long life by impregnating an electron emission material containing a compound of a barium-containing alkali earth metal oxide and alumina as the main component in a high melting point porous substrate and interposing an oxide film between the high melting point metal porous substrate and the electron emission material. SOLUTION: A high melting point metal porous substrate made of tungsten sintered body is heat treated preferably in the air and at a temperature of 400 deg.C or lower for oxidizing, and to obtain oxide films 201-206. For example, barium carbonate, calcium carbonate, aluminum oxide are mixed in a molar ratio of 4:1:1, the mixture is mixed with the substrate, and they are heated in a hydrogen atmosphere. The carbonate is decomposed and electron emission materials 301-305 made of barium.calcium.aluminate are produced and melted, and pores of the substrate are impregnated with electron emission materials. Excess impregnation residue adhered to the periphery of the substrate is removed by ultrasonic cleaning. Barium atoms sufficient for electron emission are continuously supplied to the surface of a cathode at the same time as the start of operation of the impregnation type cathode.

3. 发明专利

JP2000323008A INDIRECTLY HEATED TYPE IMPREGNATED CATHODE STRUCTURE AND CATHODE RAY TUBE USING IT 失效
公开(公告)号：JP2000323008A
公开(公告)日：2000-11-24
申请号：JP13472299
申请日：1999-05-14
申请人： HITACHI LTD
发明人： NONAKA IKUMITSU
IPC分类号： H01J1/20 , H01J29/04
摘要： PROBLEM TO BE SOLVED: To provide a long life indirectly heated type impregnated cathode structure and a cathode ray tube by sufficiently impregnating a thermal electron emission material to a porous substrate made of high temperature fusing metal and by restraining surplus thermal electron emission materials. SOLUTION: This indirectly heated type impregnated cathode structure is provided with a cathode pellet 14 formed by impregnating a thermal electron emission material to a porous substrate 11 made of high temperature fusing metal, a cup-shaped holder 12 fixed to surfaces of the porous substrate 11 made of high temperature fusing metal except its electron emitting surface, a heater 16 arranged with its top opposed to the cup-shaped holder 12, and a sleeve 15 fixed to a side wall of the cup-shaped holder 12. The external bottom surface of the cup-shaped holder 12 is fixed to a surface opposite to the electron emitting surface of the porous substrate 11 made of high temperature fusing metal and its inner bottom surface is opposed to the top of the heater 16.

4. 发明专利

JPH08212906A CATHODE-RAY TUBE 失效
公开(公告)号：JPH08212906A
公开(公告)日：1996-08-20
申请号：JP1493895
申请日：1995-02-01
申请人： HITACHI LTD , HITACHI ELECTRON DEVICES KK
发明人： TAKAKURA HIROSHI , NONAKA IKUMITSU
IPC分类号： H01J29/04 , H01J1/20 , H01J1/26 , H01J1/28 , H01J29/48
摘要： PURPOSE: To prevent a pellet from being peeled for a long duration by welding a cup to store a doped pellet in with a sleeve having a heater with a high melting point solder, regarding a doped cathode structure body of a cathode-ray tube. CONSTITUTION: Supporting wires 14, which are Re-W-based thin wires are crossing mutually at right angles, are set between the bottom part of a cup 15 made of Mo and a closed end of a sleeve 11 made of Mo and they are welded by a high melting point solder consisting of mainly a Ru-Mo. Further the end parts of the supporting wires 14 are welded with a contact part 17 made of Fe-Ni-Co. The contact part 17 is fixed in a supporting body 19 through crystallized glass 18. A pellet 16 produced by doping a substrate made of porous W with an electron emissive substance such as alkaline earth oxides is press- inserted in the cup 15 and a heater 13 is set in the sleeve 11. A doped-type cathode structure body obtained in this way is used for an electron gun structure body for a cathode-ray tube.

5. 发明专利

JPS63174480A PHOTOELECTRIC CONVERTING DEVICE 失效
公开(公告)号：JPS63174480A
公开(公告)日：1988-07-18
申请号：JP486687
申请日：1987-01-14
申请人： HITACHI LTD , JAPAN BROADCASTING CORP
发明人： ISHIOKA YOSHIO , TAKASAKI YUKIO , HIRAI TADAAKI , TSUJI KAZUTAKA , MAKISHIMA TATSUO , NONAKA IKUMITSU , KAWAMURA TATSURO , YAMASHITA TAKASHI , TAKETOSHI KAZUHISA , SHIDARA KEIICHI , ANDO FUMIHIKO , TANIOKA KENKICHI
IPC分类号： H01L27/146 , H01L31/0272 , H01L31/08 , H01L31/09 , H04N5/335 , H04N5/361 , H04N5/369 , H04N5/372 , H04N5/374
摘要： PURPOSE:To make photo response characteristic favorable by laminating an amorphous semiconductor having block type construction on a scanning substrate for reading signals and actuating with an electric field in which charge doubling action occurs in the layer of the amorphous semiconductor. CONSTITUTION:By forming a light transmitting conductive film on a glass substrate 7 and separating the light transmitting conductive film in a photo etching method, an individual reading electrode 2 is obtained. Next, on the reading electrode 2, a mask where long-sized hole is provided is made to pass through and a CeO2 thin film as a rectifier contact auxiliary layer 3 and an amorphous Se as a photo conductive film 4 are vapor-deposited by the thickness about 0.5-6mum. By depositing the light transmitting conductive film 5 on the amorphous Se layer 4 in the methods of vapor-depositing and sputtering, etc., the photoelectric conversion part is formed. By impressing the electric field in a direction where the light transmitting conductive film 5 becomes in a positive electric potential and projecting a light beam, electron positive hole pair is generated in the amorphous Se layer 4 and the charge doubling action is caused when the hole runs, so that the rapid photo response characteristic can be realized.

6. 发明专利

JPS62285350A CAMERA TUBE 失效
公开(公告)号：JPS62285350A
公开(公告)日：1987-12-11
申请号：JP12797886
申请日：1986-06-04
申请人： HITACHI LTD , JAPAN BROADCASTING CORP
发明人： TAKASAKI YUKIO , HIRAI TADAAKI , MARUYAMA MASANORI , NONAKA IKUMITSU , INOUE SHIGENORI , KATO SHINICHI , SHIDARA KEIICHI , KURASHIGE MITSUHIRO , TANIOKA KENKICHI , OKAZAKI SABURO , YAMAZAKI JUNICHI , EGAMI NORIFUMI
IPC分类号： H01J29/45 , H01J31/38
摘要： PURPOSE:To enable even a compact camera tube to have a high resolution so as to make a television camera compact, by combining a photoconductive film of decreased thickness and increased storage capacity with an electron gun whose electron beam defining aperture is made small to reduce the diameter of a scanning electron beam. CONSTITUTION:An external power supply 10 is connected between a transparent electrode 7 and a cathode 1. A photoconductive film 5 is scanned by a focused and deflected electron beam 2. As a result, the scanned surface of the photoconductive film 5 is negatively charged and has its equilibrium potential is setted nearly to the potential of a cathode 1 resulting the photoconductive film is almost charged by the external power supply. When light comes in, the electric resistance of the photoconductive film 5 drops so that the negative charge is increasingly discharged. As a result, an electric charge pattern corresponding to the quantity of the incoming light is formed on the scanning side surface of the photoconductive film 5, and the potential of the surface varies. When the photoconductive film 5 is scanned by the electron beam 2 at the next period, the electron beam landing occurs corresponding to the variation in the potential of the surface, so that a charging current nearly equal to the quantity of the discharged charge flows through current meter 11. For that reason, an optical image is converted into a time-sequential signal current. The storage capacity of the photoconductive film 5 is set at 15 muF/m to 150 muF/m .

7. 发明专利

JPS62184744A IMAGE PICKUP DEVICE 失效
公开(公告)号：JPS62184744A
公开(公告)日：1987-08-13
申请号：JP2370186
申请日：1986-02-07
申请人： HITACHI LTD
发明人： NONAKA IKUMITSU
IPC分类号： H01J29/66
摘要： PURPOSE:To obtain an image tube in which a ripple-like abnormal phenomenon is prevented from occurring on the peripheral portion of an image surface, by causing the position of the end of a convergence coil in the axial direction of the tube to coincide with that of the outside surface of the surface plate of the tube, and producing a prescribed converging magnetic field on a target on the inside surface of the surface plate. CONSTITUTION:The position of a convergence coil 9 in th axial direction of an image tube is made coincident with that of the outside surface of the surface plate of the tube. A converging magnetic field of 34 gauss or more is produced on the peripheral portion of a target 6 on the inside surface of the surface plate. For example, the target 6 is attached to the tube body 7 fitted with an electrostatic deflection electrode 8 on the inside surface of the cylindrical portion of the tube body, and the convergence coil 9 is disposed around the tube body 7. The converging magnetic field of enough intensity acts near the boundary between a scanning and a non-scanning regions having a very large potential difference, to prevent an electron beam from deviating from a proper course and landing in the non-scanning region when receiving an attractive force due to the high positive potential of the non-scanning region. As a result, a ripple-like phenomenon is prevented to improve the quality of a picture.

8. 发明专利

JPS61193336A IMAGE PICKUP TUBE TARGET 失效
公开(公告)号：JPS61193336A
公开(公告)日：1986-08-27
申请号：JP3039185
申请日：1985-02-20
申请人： HITACHI LTD , JAPAN BROADCASTING CORP
发明人： INOUE SHIGENORI , NONAKA IKUMITSU , YAMAMOTO MASANAO , TANIOKA KENKICHI , KAWAMURA TATSURO
IPC分类号： H01J29/45
摘要： PURPOSE:To effectively suppress highlight burning by making the thickness of the first layer mainly composed of Se and As between a transparent conductive film and the second layer containing Te to be 9-24nm. CONSTITUTION:A photoconductive film is made by a method, in which a transparent film 2, an Se-As-LiF photoconductive layer 3 containing 6-10wt% of As and 0.4-0.8wt% of LiF, and Se-As-Te-LiF layer 4, which contains about 30wt% of Te and about 3wt% of As while to which 0.4wt% of LiF is added up to about one half of its thickness and an Se-As layer 5 consisting of a region 5a where an As density is reduced at the fixed sloping and the region 5b with the fixed density of As are piled. When thereby the thickness (5) of the layer 3 is reduced to 9-24nm, a difference in burning generated due to the difference between a red light and a blue light of a subject with high brightness and a dark current can be properly reduced to obtain an image pickup tube target giving a good pickup screen.

9. 发明专利

JPS6188433A Pin-lead-type camera tube 失效
标题翻译： PIN-LEAD型摄像机管
公开(公告)号：JPS6188433A
公开(公告)日：1986-05-06
申请号：JP20822884
申请日：1984-10-05
申请人： Hitachi Device Eng Co Ltd , Hitachi Ltd
发明人： YAMAMOTO MASANAO , INOUE SHIGENORI , NONAKA IKUMITSU
IPC分类号： H01J31/28 , H01J31/38
CPC分类号： H01J31/38
摘要： PURPOSE:To achieve increased tolerance for positional shifts by forming V-shaped areas slanting relative to the longer sides of the scanning area in a signal-drawing low-resistance electrode which is installed on the peripheral area of a photoelectric conversion film formed on the inner surface of the face plate. CONSTITUTION:A signal-drawing target pin 2 and a transparent conductive film 3, which constitutes a photoelectric conversion surface, and installed on a face plate 1. A pin-lead-type camera tube is produced by forming a low- resistance electrode 4', consisting of a frame-like metallic vapordeposition film having V-shaped patterns 4a, on the peripheral area of the transparent conductive film 3 by vapor deposition: the V-shaped patterns 4a are formed by folding the pin-2-side area and its opposite area of the frame-like film toward its center by slant angles of at least 8 deg.. Owing to the above structure, it is possible to produce tolerance for the positional shift between a scanning area 5 and the electrode 5' and for that between the scanning area 5 and the glass chip. Furthermore, it is also possible to reduce the incidence of light reflected by the electrode 4' upon the scanning area 5.
摘要翻译：目的：通过在安装在形成在内部的光电转换膜的周边区域上的信号拉伸低电阻电极中形成相对于扫描区域的长边倾斜的V形区域来实现位置偏移的增加的公差面板表面。构成：构成光电转换面的信号绘制对象针2和透明导电膜3，并安装在面板1上。通过形成低电阻电极4'来制造引脚型照相机管，由通过气相沉积在透明导电膜3的周围区域上的具有V形图案4a的框状金属蒸发膜组成的V字形图案4a通过折叠销2侧区域和框架状薄膜的相对区域通过至少8度的倾斜角朝向其中心。由于上述结构，可以产生扫描区域5和电极5'之间的位置偏移的公差，为此，在扫描区域5和玻璃芯片之间。此外，还可以减少由扫描区域5上的电极4'反射的光的入射。

10. 发明专利

JPS60245283A PHOTOCONDUCTIVE FILM 失效
公开(公告)号：JPS60245283A
公开(公告)日：1985-12-05
申请号：JP10053584
申请日：1984-05-21
申请人： HITACHI LTD , JAPAN BROADCASTING CORP
发明人： TANIOKA KENKICHI , SHIDARA KEIICHI , KURIYAMA TAKAO , TAKASAKI YUKIO , HIRAI TADAAKI , NONAKA IKUMITSU , INOUE SHIGENORI
IPC分类号： H01J31/26 , H01J1/78 , H01J29/45 , H01L31/0248 , H01L31/08
摘要： PURPOSE:To obtain targets reduced in variation of the sensitivity generating immediately after actuation of an image pickup tube by a method wherein the thickness of a film containing substance which forms negative space charges in selenium is made specific. CONSTITUTION:The sensitivity is increased by adding tellurium to part of a photoconductor layer made mainly of selenium in the direction of film thickness. To either at least part of the region with addition of tellurium or at least part of the region adjacent to this region or to both thereof, an oxide and a fluoride which form negative space charges in selenium and one or more of elements belonging to the II group, III group, or VII group and forming said charges in selenium are contained at a concentration of more than 10ppm and less then 1% on the average of weight ratio. The thickness of a film containing substance which forms negative space charges in selenium as above-mentioned is 20-90Angstrom . For example, 20% concentration of As and 1,500ppm concentration of GaF3 are evenly distributed over a sensitizing auxiliary layer c' of 50Angstrom thickness in the direction of film thickness.

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