61 |
Method for manufacturing an image display device and image display device |
JP2002325140 |
2002-11-08 |
JP4261875B2 |
2009-04-30 |
尚雄 田島 |
|
62 |
Crt display device |
JP2000320632 |
2000-10-20 |
JP2002132200A |
2002-05-09 |
YASUI HIRONOBU; HEIJI AKINAGA |
PROBLEM TO BE SOLVED: To control the brightness of a CRT display device with a simple circuit structure using the characteristics of a Hi-Gm tube.
SOLUTION: The CRT display device has a CRT (a Hi-Gm tube) 1 having an electronic gun which has a cathode 2, a G1 electrode 3, a G2 electrode 4 and a G3 electrode 6 that are provided in this order to take out electrons form the cathode and a Gm electrode 5 that is arranged between the electrodes 4 and 6 and used for modulation. The device is also provided with a means to control a voltage value to be applied to the electrode 5 to adjust the brightness of the video on the CRT screen. The means generates the value of the voltage in accordance with the value of the control signals being inputted and is provided with a voltage source 10 to apply voltage to the electrode 5.
COPYRIGHT: (C)2002,JPO |
63 |
High pressure electronic components |
JP18526891 |
1991-06-28 |
JP2745874B2 |
1998-04-28 |
西 清 行 堂 |
|
64 |
Vacuum electronic apparatus |
JP12395997 |
1997-05-14 |
JPH1050200A |
1998-02-20 |
JIYON BIITESON; ANDORUU RAMUZEI NOTSUKUSU |
PROBLEM TO BE SOLVED: To provide a vacuum electronic apparatus which can controllably measure electron beam flow by arranging a sensor electrode between a cathode which supplies electrons of electron beam and an anode which receives electrons and housing the resultant body in a vacuum tube. SOLUTION: A vacuum tube 10 houses an anode 30, a cathode 20, and a conductive plate 40. During operation, the anode 30 is held at higher or equal potential than the cathode 20 and electrons emitted out of the cathode 20 pass the tube 10 toward the anode 30. The conductive plate 40 is connected to a detection circuit 50 arranged in the inside or the outside of the apparatus. Due to electrons which collide against the conductive plate 40 during the operation, electric current flowing from the circuit 50 to the conductive plate 40 is generated. By controlling the potential of the conductive plate 40 to be the necessary potential to balance an electrostatic field, the disturbance to the electrostatic field in the peripheral area of the conductive plate 40 is suppressed to the minimum limit. Consequently, electron beam flow between the anode 30 and the cathode 20 can be measured. |
65 |
Color display monitor and power source circuit for focusing electrode |
JP2533995 |
1995-02-14 |
JPH08223592A |
1996-08-30 |
NOHARA SHINJI |
PURPOSE: To reduce the difference of focus grade between R, G and B by independently composing the power source of a DBF electrode at each of R, G and B.
CONSTITUTION: The impression of each independent adjustable DC voltage 5a, 5b and 5c on the dynamic electrode 2a, 2b and 2c of the DBF electrode provided independently at R, G and B is made possible. As a result, the focus unbalance between principle R, G and B that the CRT using a self-concentrated deflection yoke has and the unbalance due to manufacturing dispersion are absorbed and the improvement of the forcus grade can be attained.
COPYRIGHT: (C)1996,JPO |
66 |
X-ray image intensifier tube using method and circuit for implementing its method |
JP19323995 |
1995-07-28 |
JPH08171878A |
1996-07-02 |
ERITSUKU MARUSHIYU; ARAN JIRAARU; DAMIAN BARUJIYO; JIYANNMARII DOUON; IBAN RAKOSUTOU |
PROBLEM TO BE SOLVED: To obtain a method with no disadvantage by applying almost zero operating voltage to a photocathode when a X-ray image intensifier tube is in operation and applying higher turn-off voltage than the operating voltage to the photocathode to turn off the intensifier tube.
SOLUTION: A turn-off command is applied to a logic circuit CL to turn off a X-ray image intensifier tube. The circuit CL stops the operation of a light emitting diode DEL1 of the first optical coupler OC1, operates a light emitting diode DEL2 of the second optical coupler OC2 and starts a trigger TR2. Then, voltage Ugs2 between gate sources of the second TrQ2 becomes positive and voltages Upc of a photocathode PC becomes 100U. In the meantime, a TrQ1 is turned off. When the intensifier tube becomes in operation, the voltage Vpc of the photocathode PC becomes zero. When the intensifier tube is turned off, the voltage Upc is almost zero, and when the intensifier tube is turned off, the Upc is about 1000 V. A switching circuit turns off the intensifier tube by applying higher voltage than the operating voltage to the photocathode PC.
COPYRIGHT: (C)1996,JPO |
67 |
Method and device for compensating alternate electric field produced on front surface of cathode ray tube |
JP18068692 |
1992-07-08 |
JPH05242821A |
1993-09-21 |
TOORU MEEN |
PURPOSE: To compensate simply and effectively alternate electric field generated on a front surface of a cathode ray picture tube by sensing an AC voltage between a high voltage generator and an EHT high voltage terminal and applying it to an outside electrode positioned close to a picture tube after reversal amplifying. CONSTITUTION: A cathode ray picture tube 1 has a high voltage terminal 10 as an EHT terminal and derives an internal alternate voltage signal. While the terminal 10 is connected to a grounded voltage generator 2 by a connecting wire 5 it is connected from a tap to a grounded reversal type amplifier 3 through a capacitor 4. An output of the amplifier 3 is coupled with a ring electrode 12 surrounding periphery of a picture range on the front surface 11 of the picture tube 1. Thereby, a high frequency electric field generated by a high frequency part of the alternate voltage signal obtained from the connecting wire 5 can be compensated through the outside electrode 12 surrounding the front surface of the picture tube. |
68 |
High-voltage electronic part |
JP18526891 |
1991-06-28 |
JPH0513022A |
1993-01-22 |
DOSAI KIYOYUKI |
PURPOSE:To provide a high-voltage electronic part whose size can be reduced and which has high reliability. CONSTITUTION:A voltage-deviding resistance substrate 14 is formed in a case 12, and then a resinous layer 16 is formed upon the substrate 14. Onto the resinous layer 16 a coupling capacitor 18 and a smoothing capacitor 20 are respectively mounted. At this time, the electrode 18a of the coupling capacitor 18 on the side of the voltage-dividing resistance substrate 14 and a portion of the voltage-dividing resistance substrate 14 corresponding to the electrode 18a are designed to have the same potential. Besides, the electrode 20b of the smoothing capacitor 20 on the side of the voltage-deviding resistance substrate 14 and a portion of the voltage-dividing resistance substrate 14 corresponding to the electrode 20b are designed to have the same potential. |
69 |
JPS6348140B2 - |
JP27280384 |
1984-12-26 |
JPS6348140B2 |
1988-09-27 |
SHIMADA KUNIO; OSAKABE KUNIHARU; FUKUDA KYOHEI |
|
70 |
JPS6227596B2 - |
JP17342582 |
1982-10-01 |
JPS6227596B2 |
1987-06-16 |
TAKUHARA SADAHIRO; MASUDA MITSUYA; INOHARA SHIZUO; UEDA MINORU; YAMAMOTO HIROSUKE |
|
71 |
JPS6131671B2 - |
JP17551882 |
1982-10-05 |
JPS6131671B2 |
1986-07-22 |
INOHARA SHIZUO; UEDA MINORU; TAKUHARA SADAHIRO; MASUDA MITSUYA; YAMAMOTO HIROSUKE |
|
72 |
Graticule lighting apparatus |
JP5574585 |
1985-03-22 |
JPS60232522A |
1985-11-19 |
REIMONDO JIYON FUEABENDO; RICHIYAADO TOOMASU HORUMUSUHAU; KORIN HARORUDO PETOREI |
|
73 |
Cathode-ray tube |
JP27280384 |
1984-12-26 |
JPS60167243A |
1985-08-30 |
SHIMADA KUNIO; OSAKABE KUNIHARU; FUKUDA KIYOUHEI |
PURPOSE:To prevent dielectric breakdown of an outer container and electric shock to the human body by earthing a magnet arranged on an outer periphery of an outer container of a cathode-ray tube while making to generate a magnetic field for focusing an electron beam through high impedance. CONSTITUTION:An electron beam emitted from the cathode 3 is focused and deflected by a magnet 2 arranged on an outer periphery of an electron group 4, a regular magnet plate 5 and an outer container 1 while being accelerated by an acceleration electric field formed by a conductive film 6 for reaching the phosphor screen 7 in order to form a cathode-ray tube. Thereby, the magnet 2 is earthed through the high resistance 8 so that the course from the high potential being impressed upon a regular magnet plate 5 and a conductive film 6 to the earthing potential may have the high impedance. Accordingly, the probability of coming to the dielectric breakdown of a tube wall of an outer container 1 can be sharply reduced by making the potential sloping to be dispersed while eliminating danger of electric shock to the human body thus improving the safety. |
74 |
Picture display device |
JP17551882 |
1982-10-05 |
JPS5964983A |
1984-04-13 |
INOHARA SHIZUO; UEDA MINORU; TAKUHARA SADAHIRO; MASUDA MITSUYA; YAMAMOTO HIROSUKE |
PURPOSE:To reduce the power consumption of a linear cathode circuit, by having alternating conduction between the 1st and 2nd switching elements by means of a vertical driving pulse. CONSTITUTION:A vertical deflecting signal is impressed to each vertical deflecting circuit, and an electron beam is scanned to display plural lines. At the same time, a driving circuit 25 drives electron beam generating cathodes 2a-2o of each section for a fixed period to generate electron beams successively. An end of each linear cathode is connected to a power supply +B1 via the 1st switching elements 44a-44o; while the other end of each linear cathode is connected to a power supply -B2 via the 2nd switching elements 45a-45o and at the same time grounded via resistances 42a-42o. |
75 |
Infrared dark vision device |
JP1225282 |
1982-01-28 |
JPS58129733A |
1983-08-02 |
YAMAGUCHI KIKUYA |
PURPOSE:To sufficiently supply an operating current required for an image converter tube and reduce consumption of a battery as small as possible, by interrupting a continuous oscillator circuit through a switching element. CONSTITUTION:Light from a target object 1 irradiated by an infrared projector 16 or the like is focused by an objective lens 2 and imaged to a photoscreen 3 of an image converter tube 6. By this image, an optical current in accordance with a quantity of light is emitted from the screen 3, accelerated and focused by an electrode 4 to collide against a fluorescent screen 5. The screen 5 is excited by a colliding electron to emit light and the light is intensified by a magnifying glass 7 and can be observed by the naked eye 15. Negative high voltage required for the tube 6 is obtained in such a manner that primary voltage supplied by a battery 14 is applied by a power source switch 13 and oscillated by a continuous oscillator circuit 9 then the voltage is boosted to a requied level by a multi- stage rectifier circuit 8. Here a switching element 11 is turned on and off by a switching circuit 10 to interrupt a feed current and oscillation and enable the supply of a required current at high voltage. |
76 |
Picture display |
JP18355581 |
1981-11-16 |
JPS5884581A |
1983-05-20 |
UEDA MINORU; TAKUHARA SADAHIRO; MASUDA MITSUYA; INOHARA SHIZUO; YAMAMOTO HIROSUKE |
PURPOSE: To accurately attain the driving control of a cathode provided at each section of a display of which screen is splitted verticaly, by stopping the current from a heating power supply to the cathode to generate electron beams.
CONSTITUTION: When vertical drive pulses (a)∼(c) are applied to the bases of TRs 44a∼44c, 45a∼45c of a push-pull circuit, the TR45a∼45c are cut off at a low level period of the pulses, i.e., during heating period, the TRs44a∼44c are conductive, and a current flows to the cathodes 2a∼2c from a power supply +B
1 for heating. Further, when the vertical drive pulses (a)∼(c) are high level, i.e., during the period to generate electron beams at each section, the TRs44a∼ 44c are cut off, the TRs45a∼45c are conductive to cut off diodes 43a∼43c. Thus, since no current from the heating power supply flows to the cathodes 2a∼ 2c to generate electron beams, constant electron beams can be emitted independently of the resistance value of each cathode.
COPYRIGHT: (C)1983,JPO&Japio |
77 |
JPS581785B2 - |
JP15092877 |
1977-12-15 |
JPS581785B2 |
1983-01-12 |
MATSUMOTO KATSUMI |
|
78 |
Method and device for controlling electrode voltage of electron beam tube |
JP20826081 |
1981-12-24 |
JPS57134853A |
1982-08-20 |
TOOMASU DEII KEEGERUMAN |
|
79 |
JPS5548423B2 - |
JP343374 |
1973-12-21 |
JPS5548423B2 |
1980-12-05 |
|
|
80 |
Hihakaiyomidashisochi |
JP9148275 |
1975-07-26 |
JPS5137522A |
1976-03-29 |
RYUSHIAN GYUIO |
|