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21. 发明专利

JPH0576028B2 失效
公开(公告)号：JPH0576028B2
公开(公告)日：1993-10-21
申请号：JP992283
申请日：1983-01-26
申请人： CANON KK
发明人： AOKI TAKAO , EGAMI HIDEMI
IPC分类号： G03G15/00 , B41J2/44 , G03G15/04

22. 发明专利

JPH0527110B2 失效
公开(公告)号：JPH0527110B2
公开(公告)日：1993-04-20
申请号：JP6185483
申请日：1983-04-08
申请人： CANON KK
发明人： KAN FUMITAKA , HOSOI ATSUSHI , TAJIMA HATSUO , EGAMI HIDEMI , NAKAMURA TOSHIHARU , NAKAHATA KIMIO
IPC分类号： G03G15/06 , G03G15/09

23. 发明专利

JPH0462386B2 失效
公开(公告)号：JPH0462386B2
公开(公告)日：1992-10-06
申请号：JP10498983
申请日：1983-06-14
申请人： CANON KK
发明人： TAJIMA HATSUO , KAN FUMITAKA , EGAMI HIDEMI , HOSOI ATSUSHI , NAKAMURA TOSHIHARU , NAKAHATA KIMIO
IPC分类号： G03G15/09

24. 发明专利

JPS63302662A LIGHTING DEVICE 失效
公开(公告)号：JPS63302662A
公开(公告)日：1988-12-09
申请号：JP13804987
申请日：1987-06-03
申请人： CANON KK
发明人： OIKAWA KATSUYA , EGAMI HIDEMI
IPC分类号： H04N1/04
摘要： PURPOSE:To obtain a large light quantity and an even light-emitting quantity along the whole length of a discharging tube by providing plural electrodes on which a high frequency electromagnetic field is impressed in a prescribed direction and at prescribed intervals and setting the intervals of the electrodes in the prescribed direction shorter than the lengths of the electrodes. CONSTITUTION:Plural coil like electrodes 2 on which a high frequency impressing means 3 impresses the high frequency electromagnetic field are arranged along the lengthwise direction of the discharging tube 1. The interedge parts of respective coil like electrodes 2 are arranged with distances d1, d2 and d3. The distances of the coil like electrodes 2 d1-d3 are respectively set shorter than a length 'l' along the direction of the arrangement of the coil like electrodes 2 (the lengthwise direction of the discharging tube). Thus, the deterioration of the light-emitting light quantity of interelectrode is controlled and the even light emitting light quantity can be obtained for the whole length of the discharging tube. Thus, the large light quantity and the even light-emitting light quantity can be obtained for the whole length of the discharging tube.

25. 发明专利

JPS63215160A ILLUMINATOR FOR ORIGINAL READER 失效
公开(公告)号：JPS63215160A
公开(公告)日：1988-09-07
申请号：JP4808387
申请日：1987-03-03
申请人： CANON KK
发明人： OIKAWA KATSUYA , EGAMI HIDEMI , SAITO KATSUO
IPC分类号： H04N1/04
摘要： PURPOSE:To prevent the nonuniformity of exposure due to a variable power ratio from being generated by correcting the distribution of an emitted light quantity, by providing a storage means which stores a correction value to uniformize illuminance distribution on an image forming plane, and controlling a supplying power quantity to plural electrodes based on a stored content. CONSTITUTION:In a case where luminance due to the reflection of the emitted light of a discharge tube 1 on an original plane is uniform, illuminance in the neighborhood of a screen, especially the illuminance of an end part in a longitudinal direction is lowered. Therefore, either an input power value to respective coil shaped electrode 2 of the discharge tube or its duty factor, or the combination of both values is controlled by a control means 5 according to an inputted correction value stored in a memory 10, and thereby, the lowering of the illuminance of both end parts in the longitudinal direction is prevented from occurring. Also, the magnification of an original image is changed, and a several kinds of stored contents is stored in the memory so that the inputted correction value fitted to the magnification of an optical system can be called out when the angle of the image is changed, then, the illuminance distribution is corrected to almost uniform one corresponding to the change of the magnification.

26. 发明专利

JPS63170842A LIGHTING DEVICE FOR ORIGINAL READING DEVICE 失效
公开(公告)号：JPS63170842A
公开(公告)日：1988-07-14
申请号：JP293087
申请日：1987-01-09
申请人： CANON KK
发明人： SAITO KATSUO , EGAMI HIDEMI , OIKAWA KATSUYA
IPC分类号： H01J65/04 , H01J65/00 , H04N1/04
摘要： PURPOSE:To stably maintain the preset quantity of light by detecting the high- frequency electromagnetic field generated by an electrode with a detecting means and controlling the strength of the high-frequency electromagnetic field based on this detected result. CONSTITUTION:When the high-frequency power is fed to an electrode 2 by a high-frequency oscillating unit 3, the high-frequency electromagnetic field is emitted to the outside from the electrode 2, and a discharge tube 1 is illuminated. The luminous quantity of this discharge tube 1 is nearly proportional to the strength of the high-frequency electromagnetic field from the electrode 2. Therefore, the luminous quantity of the discharge tube 1 can be known by detecting the electromagnetic field near the electrode 2 without directly detecting the light. A coil 4 is used as a detecting means to detect this electromagnetic field. Since the quantity of the visible light generated by the discharge tube 1 is determined by the detection of the electromagnetic field strength, even if an output signal line 4a near the electrode 2 is affected by the electromagnetic field, the signal noise caused by it is extremely small as compared with the detected signal, and the control of the luminous quantity is hardly affected. Accordingly, the preset quantity of light can be stably maintained.

27. 发明专利

JPS6364260A LIGHTING FIXTURE 失效
公开(公告)号：JPS6364260A
公开(公告)日：1988-03-22
申请号：JP20718786
申请日：1986-09-03
申请人： CANON KK
发明人： OIKAWA KATSUYA , EGAMI HIDEMI , SAITO KATSUO
IPC分类号： H05B41/24 , G03B27/54 , H01J65/04 , H04N1/04
摘要： PURPOSE:To eliminate the ununiformity of the light emission of a discharge tube to obtain a high luminance and a long life time by providing several series of electrodes along the length of the discharge tube and arranging them so as be respective electrodes of the adjacent series do not lie on a same circle to each other in the peripheral direction. CONSTITUTION:A series 2A of electrodes consisting of several electrodes, for example coil electrodes divided into 2-8 pieses 2a, 2b...2n, is arranged along the length of a discharge tube 1 on the outer periphery. And another series 2B of electrodes consisting of electrodes divided into several pieces 2a, 2b...2n similar to the electrode series 2A is arranged so as to face to the electrode series 2A in radial direction. Here, the respective electrodes of adjacent electrode series 2A and 2B are arranged so as they do not lie on the same circle along the length of the discharge tube 1. That is, for example the electrode 2a of the said series 2A is arranged facing to the connecting portion between The electrode 2a and 2b of the said series 2B on the discharge tube 1. Thereby a lighting fixture of high luminance and long life time without ununiformity of light emission can be obtained.

28. 发明专利

JPS6351095A LIGHTING DEVICE 失效
公开(公告)号：JPS6351095A
公开(公告)日：1988-03-04
申请号：JP19591686
申请日：1986-08-21
申请人： CANON KK
发明人： EGAMI HIDEMI , HOSONO NAGAO , SAITO KATSUO , OIKAWA KATSUYA , SATOMURA HIROSHI
IPC分类号： G09F9/00 , G03G15/04 , H01J65/04 , H05B41/24

29. 发明专利

JPS62286070A IMAGE FORMING DEVICE 失效
公开(公告)号：JPS62286070A
公开(公告)日：1987-12-11
申请号：JP12924686
申请日：1986-06-05
申请人： CANON KK
发明人： HOSAKA AKIHITO , TAKEUCHI TATSUO , EGAMI HIDEMI , SATOMURA HIROSHI , NAGASE YUKIO , INABA YUTAKA
IPC分类号： G03G15/05 , G03G9/08 , G03G9/083 , G03G15/00 , G03G15/09
摘要： PURPOSE:To simultaneously attain reciprocal effects of the use of a toner having minute particle size and the prevention of flocculation of the toner by using a one-component conductive magnetic developer as the developer and using toner particles having =30wt%. CONSTITUTION:With respect to the developer, the one-component conductive magnetic developer is used, and toner particles having =30wt%. Though the size of the developed image of a dot is equal to that of a dot latent image in case of the use of toner particles having

30. 发明专利

JPS62262363A FLAT LIGHT SOURCE DEVICE 失效
公开(公告)号：JPS62262363A
公开(公告)日：1987-11-14
申请号：JP10306486
申请日：1986-05-07
申请人： CANON KK
发明人： SATOMURA HIROSHI , NAGASE YUKIO , EGAMI HIDEMI , TAKEUCHI TATSUO
IPC分类号： H01J65/00
摘要： PURPOSE:To acquire a flat light source device to maintain an even plain lighting by a small power, which can have either a compact size or a large size, by furnishing the first and the second electrodes covered with dielectrics and insulated each other, a sealing member to seal a gas to radiate by a discharge, and a visual spectrum device attached to the inner surface of the sealing member. CONSTITUTION:In a dielectric 7, the first electrode 8 applied with a metal such as Cr, Ti, Ta, Ni, Ca, Al, and AU, or an alloy of some of them, and the second electrode 9 applied with the same sort of metal are buried in a stripe form alternatively in the insulated condition. By sealing a gas in a package 1 and applying a voltage between the two electrodes to generate a discharge to raise the inner temperature, the metal such as mercury in the package 1 is evaporated, a discharge is generated, and the light of the luminous spectrum is radiated responding to the type of the metal. At the inner surface of the package 1, a phosphor 13 is spread as a visual spectrum device to absorb the luminous spectrum and radiate a visual light, and an even light is radiated from the whole luminous surface 3.

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