专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

31. 发明专利

DE2527527A1 未知
公开(公告)号：DE2527527A1
公开(公告)日：1976-01-08
申请号：DE2527527
申请日：1975-06-20
申请人： JAPAN BROADCASTING CORP , HITACHI LTD
发明人： NONAKA YASUHIKO , HIRAI TADAAKI , GOTO NAOHIRO , SHIDARA KEIICHI
IPC分类号： H01J9/233 , H01J29/45 , H01L31/08 , H01J31/38
摘要： In a target structure for use in a photoconductive image pickup tube, a P-type photoconductive film is deposited on an N-type transparent conductive film which is deposited on a transparent substrate. The P-type photosensitive film comprises first and second photoconductive substances. The commencement of the deposition of the first photoconductive substance is delayed a predetermined time from that of the second photoconductive substance thereby forming a film of the first photoconductive substance which is not contiguous to the junction surface between the N-type transparent conductive film and the P-type photoconductive film.

32. 发明专利

DE2424488A1 未知
公开(公告)号：DE2424488A1
公开(公告)日：1974-12-12
申请号：DE2424488
申请日：1974-05-20
申请人： HITACHI LTD , JAPAN BROADCASTING CORP
发明人： MARUYAMA EIICHI , HACHINO HIROAKI , SAITOH YASUSHI , HIRAI TADAAKI , GOTO NAOHIRO , ISOZAKI YUKINAO
IPC分类号： H01J29/45 , H01L31/08 , H01L31/109 , H01J29/43

33. 发明专利

JPH0530433A IMAGE PICKUP DEVICE 失效
公开(公告)号：JPH0530433A
公开(公告)日：1993-02-05
申请号：JP17802191
申请日：1991-07-18
申请人： HITACHI LTD , JAPAN BROADCASTING CORP
发明人： TSUJI KAZUTAKA , MAKISHIMA TATSUO , OSHIMA TETSUYA , HIRAI TADAAKI , KUBOTA SETSU , TANIOKA KENKICHI , SHIDARA KEIICHI
IPC分类号： H01J31/26 , H04N5/335 , H04N5/355 , H04N5/369 , H04N5/374
摘要： PURPOSE:To take sufficient gradation of a bright part and to widen the dynamic range by forming a video signal by one field period from a signal read or integrated or added for one field period. CONSTITUTION:A signal charge generated in a light receiving section of a photoelectric conversion section 1 is stored to a storage capacitor for a prescribed period in response to an external incident luminous quantity and the signal charge stored for each picture element is read sequentially by a read out scanning section 3 to generate a time series electric signal corresponding to the spatial distribution of the incident luminous quantity. In this case, at least part of the signal charge stored in the storage capacitor is read to the outside of the storage capacitor for twice or over within one field period of the video output signal and the signal read for one field period is integrated or added to generate the video signal for one field period. Thus, the deterioration in the effective sensitivity is suppressed and even when the incident luminous quantity is increased, the luminous quantity dependency of the output signal is not weaken. Thus, the gradation of the bright part is taken sufficiently to widen the dynamic range.

34. 发明专利

JPH04112434A IMAGE PICKUP TUBE AND ITS OPERATING METHOD 失效
公开(公告)号：JPH04112434A
公开(公告)日：1992-04-14
申请号：JP23065890
申请日：1990-09-03
申请人： HITACHI LTD , JAPAN BROADCASTING CORP
发明人： OGAWA HIROBUMI , NAGATSUMA KAZUYUKI , SAMEJIMA KENJI , HIRAI TADAAKI , MARUYAMA HIROTAKA , OKAZAKI SABURO , SATO SHIRO
IPC分类号： H01J29/45 , H01J31/49
摘要： PURPOSE:To accomplish an image pickup tube for X-rays in which screen abnormality phenomena and defects on the screen are improved, by forming a target electrode on an insulative sheet restricted to its part corresponding to the effective scan region with electron beam. CONSTITUTION:A base board is formed from an insulate plate 1 provided with an opening 17 for passage of X-rays and an insulative sheet 2 which X-ray penetrates easily, and a target electrode 3 consisting of a conductive sheet is provided restricted to the part corresponding to the effective scan region with electron beam 10 projected over the insulative sheet 2. This target electrode 3 is connected with a pin electrode 5 for signal takeout penetrating the insulate plate 1 being insulated from a metal ring 7. This constitution enables operating of the target electrode 3 and metal ring 7 while they are connected with separate power supplies, and the voltage on the surface other than effective scanning region with electron beam 10 on a photo-electric conductive film 4 can be suppressed.

35. 发明专利

JPH02137274A FORMING METHOD FOR SELENIUM THIN FILM 失效
公开(公告)号：JPH02137274A
公开(公告)日：1990-05-25
申请号：JP28995588
申请日：1988-11-18
申请人： HITACHI LTD , JAPAN BROADCASTING CORP
发明人： MATSUBARA HIROKAZU , HIRAI TADAAKI , TAKASAKI YUKIO , YAMAZAKI JUNICHI , KOSUGI MITSUO , TAKETOSHI KAZUHISA
IPC分类号： C23C14/06 , H01L21/368 , H01L31/0248
摘要： PURPOSE:To form, with excellent reproducibility, a photoconductive thin film excellent in sensitivity in a long wavelength region, the main material of which film is selenium abundant in adhesion, by activating in a vacuum at least a part of vaporization material whose main body is selenium, and forming a thin film. CONSTITUTION:When a thin film is formed, a reaction chamber 1 is first vacuumized; a substrate 3 is controlled at a specified temperature by a heater 4; a substrate retaining electrode 2 to retain the substrate 3 is negatively biased with respect to a crucible 6. Vaporization material 7, whose main body is selenium, is subjected to impulse heating and vaporized by accelerated electron emitted from an electron beam source 9, and deposited on the substrate 3 whose temperature is controlled, thereby forming a thin film whose main body is selenium. In this process, a part of vaporization material collides, in a vacuum, with the accelerated electron output from the electron beam source 9; said material is activated and accelerated by electric field, and rushes into the substrate 3. By the effect of activation, acceleration, and rushing- into of active species, a photoconductive thin film whose main body is selenium, and which is provided with distinctive thermal and electric characteristics unobtainable by conventional vacuum deposition, e.g., the increase of heat resistance and photoconductivity, can be obtained.

36. 发明专利

JPS62223951A PHOTOCONDUCTIVE FILM 失效
公开(公告)号：JPS62223951A
公开(公告)日：1987-10-01
申请号：JP6576086
申请日：1986-03-26
申请人： HITACHI LTD , JAPAN BROADCASTING CORP
发明人： TAKASAKI YUKIO , MAKISHIMA TATSUO , TSUJI KAZUTAKA , HIRAI TADAAKI , INOUE SHIGENORI , NONAKA IKUMITSU , GOTO NAOHIRO , YAMAMOTO MASANAO , SHIDARA KEIICHI , TANIOKA KENKICHI , YAMASHITA TAKASHI , KAWAMURA TATSURO , HIRUMA SHIGEHISA , SUZUKI SHIRO , AIBA MASAAKI
IPC分类号： H01J29/45
摘要： PURPOSE:To reduce the burning of a photoconductive film during operation at a high temperature by constructing the photoconductive film so as to have a p-type photoconductive film and a n-type electro-conductive film and the said p-type photoconductive film has in its portion a layer containing a specified quantity of Te and a layer containing a specified quantity of a material producing shallow levels. CONSTITUTION:A photoconductive film is constructed so as to have a p-type photoconductive film composed mainly of amorphous Se and a n-type conductive film producing a rectifying contact at the interface between the film and the p-type photoconductive film, and it is used as a target for an image pick-up tube by applying an inverse bias voltage to the rectifying contact. Here, the p-type photoconductive film is constructed so as to have in its portion a layer containing 35-60wt% of Te and a layer containing 0.005-5wt% of a material such as LiF, NaF, MgF2 or the like considered to produce shallow levels. Therefore by regulating the concentration of Te and LiF or the like adequate burning characteristics can be obtained without the deterioration of the tube characteristics even when the operation temperature becomes high.

37. 发明专利

JPS61273829A MANUFACTURE OF IMAGE PICK-UP TUBE TARGET 失效
公开(公告)号：JPS61273829A
公开(公告)日：1986-12-04
申请号：JP11409085
申请日：1985-05-29
申请人： HITACHI LTD , JAPAN BROADCASTING CORP
发明人： TAKASAKI YUKIO , MAKISHIMA TATSUO , HIRAI TADAAKI , INOUE SHIGENORI , NONAKA IKUMITSU , OGINO TOSHIO , SHIDARA KEIICHI , YAMASHITA TAKASHI , KAWAMURA TATSURO , TANIOKA KENKICHI , HIRUMA SHIGEHISA
IPC分类号： H01J9/233
摘要： PURPOSE:To improve reproducibility of a property during the process of mass production by a method in which, when forming a photodiode type image pick-up tube target using a photoconductive film mainly composed of Se in a light receiving screen, the photoconductive films are vacuum evaporated while holding a substrate at a specific temperature. CONSTITUTION:A light-transmitting substrate 1 is provided with an n-type light-transmitting conductive film 2, p-type photoconductive films 3 and 4 mainly consisting of Se while containing Te not exceeding 40wt% on a part of its layer and forming rectifying contact in the interface with the n-type conductive film 2 and a porous scanning electron beam landing layer 5 for forming a photodiode type image pick-up tube target. Thereby, the photoconductive films 3 and 4 are vacuum evaporated in a state in which the substrate 1 is heated and held at a temperature not exceeding 60 deg.C. And an increase in baking, a fluctuation in a signal current and the instability of reproducibility of a property that largely depend upon the temperature of substrate 1 are sharply reduced. Accordingly, mass producibility can be improved while holding a good property for long hours.

38. 发明专利

JPS5140812A 失效
公开(公告)号：JPS5140812A
公开(公告)日：1976-04-06
申请号：JP11384774
申请日：1974-10-04
申请人： HITACHI LTD , JAPAN BROADCASTING CORP
发明人： INAO KYOHISA , HIRAI TADAAKI , MARUYAMA EIICHI , GOTO TADAHIRO , WAKUI KOTARO
IPC分类号： H04N5/16

39. 发明专利

JPH0729507A IMAGE PICKUP TUBE AND OPERATING METHOD THEREOF 失效
公开(公告)号：JPH0729507A
公开(公告)日：1995-01-31
申请号：JP17313293
申请日：1993-07-13
申请人： HITACHI LTD , JAPAN BROADCASTING CORP
发明人： ISHIHARA KATSUYOSHI , TAKASAKI YUKIO , SAMEJIMA KENJI , HIRAI TADAAKI , TANIOKA KENKICHI , KATO TSUTOMU , KUBOTA SETSU , TAKIGUCHI YOSHIRO , SUZUKI SHIRO
IPC分类号： H01J29/45 , H01J31/38
摘要： PURPOSE:To provide an image pickup tube which is used by impressing high target voltage upon the image pickup tube and by which a highly sensitive, high resolution, high S/N, low afterimage and high grade image is obtained. CONSTITUTION:An area 102 to be scanned by an electron beam of a light conductive target of an image pickup tube is constituted of at least a target electrode 2 and the first light conductive layer 3, and an area except the area to be scanned by the electron beam is constituted by layering at least the second light conductive layer 4, an electron hole capturing layer 6 capable of capturing an electron hole generated by incident light and the third light conductive layer 5 in order. Thereby, since the layer capable of capturing the electron hole generated by the incident light is provided, a highly sensitive, high resolution, high S/N, low afterimage and high grade image can be realized without causing a failure phenomenon such as image strain, shading, an electrode reflected image, a ripple phenomenon and an image reversing phenomenon.

40. 发明专利

JPH06302287A X-RAY IMAGE PICKUP TUBE 失效
公开(公告)号：JPH06302287A
公开(公告)日：1994-10-28
申请号：JP8964693
申请日：1993-04-16
申请人： JAPAN BROADCASTING CORP , HITACHI LTD
发明人： MARUYAMA HIROTAKA , KATO TSUTOMU , NAGATSUMA KAZUYUKI , NAKANO YASUSHI , SAMEJIMA KENJI , TSUJI KAZUTAKA , HIRAI TADAAKI
IPC分类号： H01J9/233 , H01J31/49
摘要： PURPOSE:To provide a good quality of X-ray image pickup tube at a high sensitivity and a high resolution without generating a white spot image defect, by composing the first layer of a surface flatting layer with a material having the glass transition point higher than that of the material to compose the second layer. CONSTITUTION:On an X-ray permeable face plate 1, a surface flatting layer 2 which consists of the first surface flatting layer 201 and the second surface flatting layer 202, consisting of an amorphous material, is provided. As the material to compose the first layer 201, a material with the glass transition point higher than that of the material of the second layer 202 is used, and the second layer is formed on the first layer at the temperature scope higher than the glass transition point of the material to compose the second layer, and lower than the glass transition point of the material to compose the first layer. Consequently, when the second layer is heated and vapor deposited, or the second layer is heat-treated after the vapor deposition, a chemical combining force is operated between the first layer and the second layer, and an islanding of the second layer by the condensation force of the second layer itself can be prevented, and a high accuracy of flatted surface can be obtained.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式