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11. 发明专利

JPS56136440A IMAGE PICKUP TUBE 失效
公开(公告)号：JPS56136440A
公开(公告)日：1981-10-24
申请号：JP3894280
申请日：1980-03-28
申请人： HITACHI LTD
发明人： NOBUTOKI SABUROU , SOUKEI HIROICHI
IPC分类号： H01J29/45 , H01J31/26
摘要： PURPOSE:To improve the productionability of face plate structure by covering the side face and the circumferential bevel section of a crystal board on a image pickup face with a light shielding material. CONSTITUTION:A transparent conductive film 2 and a photoconductive film 3 are sequentially coated over an effective photoconversion section at the inner face side of a face plate 1 made of a transparent glass, etc. where the open end of a glass valve 5 containing an electron gun structure 4 is encapsulated airtightly through an indium seal. A crystal board 7 of similar rectangular shape having the size slightly larger than that of the effective image pickup face section is adhered as a double refraction parallel planar transparent board at the front face of the face plate 1, where a cover 8 made of a light shielding material such as black molded resin having resiliency is applied on at least the side face 7a and the circumferential bevel section 7b of said crystal board 7. Consequently the productionability can be improved.

12. 发明专利

JPS5659437A IMAGE PICKKUP TUBE 失效
公开(公告)号：JPS5659437A
公开(公告)日：1981-05-22
申请号：JP13517779
申请日：1979-10-22
申请人： HITACHI LTD
发明人： SOUKEI HIROICHI
IPC分类号： H01J29/45 , H01J29/86 , H01J29/90
摘要： PURPOSE:To obtain an image pick-up tube having high S/N and high resolution by employing rigid insulator ring for the body of ring-shaped signal electrode while coating a conductive film on a portion of the surface of the insulator where a signal is taken out to form a conductive path of small area. CONSTITUTION:The signal isn't required to be taken out from the entire circumference of a ring-shaped signal electrode and a rigid insulator such as ceramic ring 12 is employed as the body of said ring-shaped signal electrode, and for the purpose of ensure a minimum conductive path to be connected with a transparent conductive film on a face plate and to take out an image signal, condutive film 13 of Al, Au is coated on the surface of an insulator ring 12 and a small area facing against the ear section 14 of transparent conductive film 10 on the face plate. With such arrangement an image pick-up tube having high resolution and high S/N is obtained.

13. 发明专利

JPS55141052A CAMERA TUBE 失效
公开(公告)号：JPS55141052A
公开(公告)日：1980-11-04
申请号：JP4793979
申请日：1979-04-20
申请人： HITACHI LTD
发明人： SOUKEI HIROICHI
IPC分类号： H01J29/48 , H01J29/80
摘要： PURPOSE:To enlarge an effective scanning beam area by arranging an accelerating electrode adjacent and widely opened to a mesh electrode of a frog type camera tube for scanning a photoconductive film surface with an electron beam. CONSTITUTION:Within a glass tube 1 are arranged successively a cathode 2, beam control electrode 3, focusing electrode 4, accelerating electrodes 5, 6, 14 and mesh electrode 15. At one end of the glass tube 1 opposed to the mesh electrode 15 are arranged a target ring 9 and photoconductive film 10. The accelerating electrode 14 adjacent the mesh electrode 15 is shaped to widely open toward the mesh electrode 15 side like a truncated cone having a vertical angle larger than the deflection angle. Thus the electron beam scans the photoconductive film 10 without being trapped by the electrode 14 to enlarge the effective scanning beam area S2.

14. 发明专利

JPS60211747A Pickup tube device 失效
标题翻译： PICKUP TUBE DEVICE
公开(公告)号：JPS60211747A
公开(公告)日：1985-10-24
申请号：JP6570584
申请日：1984-04-04
申请人： Hitachi Ltd
发明人： SOUKEI HIROICHI
IPC分类号： H01J29/64
CPC分类号： H01J29/64
摘要： PURPOSE:To reduce power consumption and weight by compounding the magnetic field due to a permanent magnet and the magnetic field due to a focusing coil to focus an electron beam. CONSTITUTION:A focusing magnetic field is generated by a ferrite magnet 7, a focusing coil 5b having relatively many windings in the neighborhood of a target to carry out photoelectric conversion and a focusing coil 5a having a relatively small number of windings through an overall length in the direction of a tube axis. The temperature characteristic of the ferrite magnets is compensated by adjusting the current in the focusing coil. In order to control the current value in the focusing coil corresponding to the variation of the temperature, a thermistor is inserted into a power supply circuit or the power supply circuit is constituted to make the output of color carrier in a single color pickup tube constant.
摘要翻译：目的：通过复合永久磁铁引起的磁场和由于聚焦线圈引起的磁场聚焦电子束来降低功耗和重量。构成：通过在目标附近具有相对多的绕组的铁氧体磁体7，聚焦线圈5b产生聚焦磁场，以进行光电转换，并且通过整体长度具有相对较少数量的绕组的聚焦线圈5a 管轴方向。通过调整聚焦线圈中的电流来补偿铁氧体磁体的温度特性。为了控制对应于温度变化的聚焦线圈中的电流值，将热敏电阻插入电源电路中，或者将电源电路构成为使单色拾取管中的色载体的输出恒定。

15. 发明专利

JPS5713657A PICKUP TUBE 失效
公开(公告)号：JPS5713657A
公开(公告)日：1982-01-23
申请号：JP8658980
申请日：1980-06-27
申请人： HITACHI LTD
发明人： SOUKEI HIROICHI
IPC分类号： H01J29/48 , H01J31/38
摘要： PURPOSE:To realize great increase in the utilization rate of the uniformity of bias light by providing a rough light-diffusing surface on the photoconductive film of a cylindrical electrode, and providing a regular reflection surface on the side of incoming light. CONSTITUTION:A third grid 9 serving as a focusing electrode is made of nichrome, a stainless steel or the like having luster, and has a cylindrical shape. A plural number of bias light insertion holes 9a used for introducing source light, are provided on a second grid 10 side of the grid 9. Bias light introduction routes 13, which lead light sent from the holes 9a to directions of a fourth grid 8, are formed across the cylindrical inner surface of the grid 9. The routes 13 are formed on a regular reflection surface 9b of high light-reflectance which reflects bias light in a regular manner. A light diffusing surface 9c whicd is made rough by etching or the like, is formed in front of the regular surface 9b, on the inner wall of the gride 8 side of the gride 9. Consequently, the utilization rate as well as the uniformity of bias light can be greatly increased.

16. 发明专利

JPS5636270A IMAGE PICKUP DEVICE 失效
公开(公告)号：JPS5636270A
公开(公告)日：1981-04-09
申请号：JP11175979
申请日：1979-09-03
申请人： HITACHI LTD
发明人： SOUKEI HIROICHI
IPC分类号： H04N5/14 , H04N5/228
摘要： PURPOSE:To improve the frequency characteristic and S/N to improve resolution, by conncting a transistor for emitter follower to the output end of the first-stage amplifying circuit and by connecting this circuit to the next-stage amplifier. CONSTITUTION:The emitter follower output part consisting of transistor Q2 and emitter resistance R5 is connected to the drain output end of preamplifier 12 stored in yoke assembly 11 to make the output end of preamplifier low-impedance, and the output end is connected to the input end of negative feedback type constant-current amplifier 15 through output signal lead 16. This negative feedback type constant- current amplifer 15 feeds back the output to pre-amplifier 12 through feedback resistance R4 to improve the frequency characteristic.

17. 发明专利

JPS5310927A BIAS LIGHT STABILIZING CIRCUIT FOR PICKUP TUBE 失效
公开(公告)号：JPS5310927A
公开(公告)日：1978-01-31
申请号：JP8509676
申请日：1976-07-19
申请人： HITACHI LTD
发明人： SOUKEI HIROICHI , TAKIGAWA TOORU
IPC分类号： H04N5/228 , H04N9/04
摘要： PURPOSE:Extracted signals control bias light power supply input in order to make the quantity of bias light constant, thereby reducing the noise which appears in the output singals of a pickup tube.

18. 发明专利

JPS60162202A IMAGE PICKUP DEVICE WITH COLOR SEPARATION MOSAIC FILTER 失效
公开(公告)号：JPS60162202A
公开(公告)日：1985-08-24
申请号：JP1510784
申请日：1984-02-01
申请人： HITACHI LTD
发明人： NOBUTOKI SABUROU , KUMOUCHI TAKAAKI , SOUKEI HIROICHI
IPC分类号： G02B5/20 , H01L27/14 , H04N9/04
摘要： PURPOSE:To improve the color reproducibility of color television and the S/N of a chrominance signal by setting the constitution ratio of the red light transmission part of the color separation mosaic filter for a color television image pickup to >=50%. CONSTITUTION:Cyan stripe filters 2 which cut off red light and yellow stripe filters 4 which cut off blue light are arrayed at specific intervals alternately together with all-color light transmission parts. Thus, a graphic charge pattern is formed on a photoelectric conversion surface and scanned with an electron beam to obtain a photoelectric signal of frequency corresponding to the filter array period and electron beam scanning speed. A pulsating signal component is extracted from the photoelectric signal to generate a television signal which has the same amplitude with said component and corresponding to red and blue. The width of the cyan stripe filters 2 is reduced, the constitution ratio of the red light transmission part is set to =25%.

19. 发明专利

JPS5660180A COLOR IMAGE PICKUP DEVICE 失效
公开(公告)号：JPS5660180A
公开(公告)日：1981-05-23
申请号：JP13517579
申请日：1979-10-22
申请人： HITACHI LTD
发明人： SHINTANI AKIRA , SOUKEI HIROICHI
IPC分类号： H04N9/04 , H04N9/73
摘要： PURPOSE:To improve color balance by holding the signal current of a video amplifying circuit at a constant electric current corresponding to fluctuations of the temperature of a face plate. CONSTITUTION:Gain control circuit 5 is constituted by providing variable resistance 6, fixed resistance 7 and temperature compensating element 8. In this constitution, an image pickup signal current increasing corresponding to a rise in the temperature of the face plate has its gain decreased by element 8 having negative temperature characteristics. For this purpose, the signal current obtained from the output terminal of preprocess amplifier 4 is held constant to improve color balance. In this case, a change in output when resistance 6 of amplifier 4 is adjusted is found, an increase or decrease in signal current is converted into a change in resistance value and the resistance value becomes equal to the total value of resistances 6 and 7 and element 8 by selecting the value of element 8, so that the signal current will be held constant. Thus, the color balance can be improved easily by using element 8.

20. 发明专利

JPS5512644A IMAGE PICKUP TUBE 失效
公开(公告)号：JPS5512644A
公开(公告)日：1980-01-29
申请号：JP8511978
申请日：1978-07-14
申请人： HITACHI LTD
发明人： SOUKEI HIROICHI
IPC分类号： H01J29/45 , H01J31/46
摘要： PURPOSE:To perform reliable and efficient taking out of electrode by extending each of a plurality of target electrodes to the side of face plate then coating with insulation layer except a portion of extended portion. CONSTITUTION:Transparent target electrodes 2, 3 are formed on the lower face of face plate 1 where each electrode 2, 3 has portions 2a, 3a extending along the side of face plate 1 to the above of side face. Side portion except the exposed portions 2b, 3b which become the taking-out portion of target electrodes 2, 3 is coated with insulation layer 4 such as SiO2. Such face plate 1 is encapsulated in a glass valve 7 by indium 8 provided on the inner circumference of metal ring 9 after evaporation of photo-conductive layer 5.

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