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1. 发明专利

JPS6341463B2 失效
公开(公告)号：JPS6341463B2
公开(公告)日：1988-08-17
申请号：JP15755379
申请日：1979-12-05
申请人： RICOH KK
发明人： SEGAWA HIDEO , SAKURAI KOICHI , MORI KOJI , ITAGAKI MASAKUNI
IPC分类号： G06T1/00 , H01L27/14 , H04N1/028

2. 发明专利

JPS635741B2 失效
公开(公告)号：JPS635741B2
公开(公告)日：1988-02-04
申请号：JP14797176
申请日：1976-12-09
申请人： RICOH KK
发明人： SEGAWA HIDEO , HAMAGUCHI IWAO
IPC分类号： B41J2/44 , G02F1/11 , G06K15/00 , G06K15/12

3. 发明专利

JPS6149650B2 失效
公开(公告)号：JPS6149650B2
公开(公告)日：1986-10-30
申请号：JP5865278
申请日：1978-05-17
申请人： RICOH KK
发明人： HAMAGUCHI IWAO , SEGAWA HIDEO , MORI MASAAKI , UMEZAWA MICHIO , SAKURAI KOICHI
IPC分类号： B41J2/44 , B41J3/00 , G02F1/11 , G03G15/04 , G11B7/09 , G11B7/12

4. 发明专利

JPS6037503A LIGHT GUIDE ELEMENT 失效
公开(公告)号：JPS6037503A
公开(公告)日：1985-02-26
申请号：JP14486883
申请日：1983-08-10
申请人： RICOH KK
发明人： SEGAWA HIDEO
IPC分类号： G02B6/12 , C03C25/60 , G02F1/01
摘要： PURPOSE:To facilitate the polishing of an end of an optical waveguide and to enable direct coupling by subjecting a part close to the end of the waveguide formed on a glass substrate by ion exchange to Ag ion exchange to form a thicker ion exchanged layer. CONSTITUTION:A part close to an end of an optical waveguide 2 formed on a glass substrate 1 by K ion exchange is subjected to Ag ion exchange in an electric field to form a thicker Ag ion exchanged layer 6. The polishing of the end is facilitated, and direct coupling is enabled.

5. 发明专利

JPS58126514A LIGHT BRANCHING DEVICE 失效
公开(公告)号：JPS58126514A
公开(公告)日：1983-07-28
申请号：JP967882
申请日：1982-01-25
申请人： RICOH KK
发明人： SEGAWA HIDEO
IPC分类号： G02B6/00 , G02F1/01 , G02F1/313
摘要： PURPOSE:To lessen loss of light combination and to improve efficiency of light utilization by forming a branching part by contacting and combining plural optical fibers with each other and providing a heating element in the branching part. CONSTITUTION:Optical fibers 1, 2 are buried on the surface of a base plate 4 made of an epoxy resin in a state that they are connected to each other at a part of them and the connected condition is fixed. Further, a heating element 3 is provided on the surface of the substrate 4. When a current pulse is applied to the heating element 3 to generate heat, the heat is transmitted to clad parts 11, 21 of the fibers 1, 2, and the refractive indices of clad parts 11, 21 become nearly the same as those of core parts 10, 20 due to rise of temperature in the area 30. Accordingly, when light is being transmitted in the fiber 1, the light is transmitted from the fiber 1 to 2 from the core part 10 through clad parts 11, 21 where the refractive indices are raised, and the waveguide path of the optical fiber 1 and that of the optical fiber 2 are combined to each other.

6. 发明专利

JPS5893036A LIGHT BRANCHING DEVICE 失效
公开(公告)号：JPS5893036A
公开(公告)日：1983-06-02
申请号：JP19197981
申请日：1981-11-30
申请人： RICOH KK
发明人： SEGAWA HIDEO , KOYAMA JIROU , HARUNA MASAMITSU
IPC分类号： G02B6/12 , G02F1/01 , G02F1/313
摘要： PURPOSE:To constitute a light branching device with inexpensive materials and at the same time to realize a new selecting system of an optical guidewave, by using a heat generator that heats up the area adjacent to the branching point of the optical guide wave. CONSTITUTION:An optical waveguide 2 having a high refractive index is formed on a transparent dielectric substrate 1 made of a soda glass plate. The waveguide 2 is expanded at an input side 2I and before the branching point and then branched to branches 2A and 2B at the branching point. A buffer layer 3 is provided at the branching point of the waveguide 2, and the vapor-deposited heat generating layers 4 and 5 are formed on the layer 3. When the voltage VA is applied to the layer 4, the Joule heat is produced. Thus the area adjacent to the branching point of the guidewave 2 is heated up to increase the refractive index. As a result, the numbers of beams transmitted to the guidewave 2 are allotted to the branch 2A. The good optical switching is possible by controlling the voltages VA and VB.

7. 发明专利

JPS56123079A IMAGE INFORMATION READER 失效
公开(公告)号：JPS56123079A
公开(公告)日：1981-09-26
申请号：JP2652780
申请日：1980-03-05
申请人： RICOH KK
发明人： SEGAWA HIDEO , SAKURAI KOUICHI , MORI KOUJI , ITAGAKI MASAKUNI , ISHIWATARI TATSUMI
IPC分类号： H04N1/19 , G06K9/20 , G06T1/00
摘要： PURPOSE:To perform an adjustments such as positioning easily with high precision and secure a compact optical system, by forming a light source, a focusing fiber row, and a photodetector row in one body. CONSTITUTION:Light sources, for example, fluorescent lamps 11 and 12 are fitted to holding materials 13 and 14, and light shield plates 15 and 16 are so provided that original 2 put on contact glass 1 is irradiated concentratively. Focusing fiber row 21 is held between holding materials 22 and 23 and is constricted by screws 24 and 25 provided in both end parts of holding materals 22 and 23. Holding material 28 is provided with a projection part, and it is fitted to projection parts 17 and 18 provided on holding material 13, and holding materials 13 and 14 are fitted to side walls 34 and 35 of box body 33. Groove 37 is provided in bottom part 36 of box body 33, and both edge parts of image sensor 42 are put in both sides of this groove and are retained by retaining plates 43 and 44.

8. 发明专利

JPS5687166A OPTICAL READDIN ELEMENT 失效
公开(公告)号：JPS5687166A
公开(公告)日：1981-07-15
申请号：JP16422379
申请日：1979-12-18
申请人： RICOH KK
发明人： MORI KOUJI , SEGAWA HIDEO , SAKURAI KOUICHI , ITAGAKI MASAKUNI
IPC分类号： G06K7/10 , H01L27/146 , H01L31/08 , H04N1/028 , H04N9/04
摘要： PURPOSE:To enable to obtain high photoelectric conversion efficiency, by forming the photosensor in thin film shape at the external circumference of optical fiber. CONSTITUTION:On the external circumference of the optical fiber 1, transparent electrode film 2, photoconductive film 3, and metallic electrode film 4 are sequentially laminated. With this constitution, the layer absorbing the light to produce carrier can substantially be made broad, and the loss incident light is low, allowing to increase the photoelectric conversion efficiency. Further, by arranging many of photo read-in elements with this constitution in a row, to constitute the photoinformation read-in unit, the integration as the photoinformation read-in unit can be increased.

9. 发明专利

JPS5679481A METHOD OF PREPARING PHOTOELECTRIC CONVERSION ELEMENT 失效
公开(公告)号：JPS5679481A
公开(公告)日：1981-06-30
申请号：JP15652479
申请日：1979-12-03
申请人： RICOH KK
发明人： MORI KOUJI , SEGAWA HIDEO , SAKURAI KOUICHI , ITAGAKI MASAKUNI
IPC分类号： H01L27/146 , H01L31/0264 , H01L31/09 , H01L31/18
摘要： PURPOSE:To increase a photoresponse velocity by laminating CdS maintaining a phototransmission substrate wherein a transparent conductive film is formed thereon at 200-350 deg.C and treating it in an ambience including O2 at 400-700 deg.C, thereby decreasing a black current piling up CdTe, As2Se3. CONSTITUTION:CdS is vaporized upon a substrate comprizing an In2O3 vaporized on a soda glass keeping said substrate at 200-350 deg.C. When CdS particles become large, a black resistance becomes large. Further, it is very small below 200 deg.C, while it is large over 350 deg.C. Then, it is heated at 400-700 deg.C in the air or an ambience containing O2. At this time, it is heated and cooled by controlling the change of temperature at 2-20 deg.Cmin. After laminating the CdTe and As2Se3 upon CdS having 1-10mum in thickness of approximately 2mum and 0.2mum thereon respectively, an Au-electrode is vaporized. According to this constitution, the photoelectrode conversion element having a small black current and a high velocity photoresponse at the time of reverse current is easily formed.

10. 发明专利

JPS5679372A OPTICAL READ ELEMENT 失效
公开(公告)号：JPS5679372A
公开(公告)日：1981-06-29
申请号：JP15562279
申请日：1979-12-03
申请人： RICOH KK
发明人： SEGAWA HIDEO , SAKURAI KOUICHI , MORI KOUJI , ITAGAKI MASAKUNI
IPC分类号： G06K7/12 , H04N1/028
摘要： PURPOSE:To obtain a real size type color optical read element at low cost, by arraying a lot of photodetectors on the substrate, dividing the respective photodetectors into three, and providing green, blue and red filters on the surface of the partial photodetecting parts. CONSTITUTION:A lot of thin film photodetectors 2 having the photoconductivity corresponding to one picture element are arrayed on the substrate 1, and these detectors 2 are divided into three partial photodetecting parts 2a, 2b, 2c, respectively. As for these partial photodetecting parts, the fitters which selectively transmit a green light beam, a blue light beam and a red light beam are provided on the photodetecting surface of the photodetecting part 2a, the photodetecting surface of the photodetecting part 2b, and the photodetecting surface of the photodetecting part 2c. The photodetecting parts 2a-2c of the photodetectors which have been constituted in this way are made to have the characteristic of a photodiode, and after that, when voltage is applied to the photodetectors in the reverse bias direction, the respective thin film photodetecting parts are charged with electricity. When a light beam is irradiated to the photodetecting parts which have been charged with electricity, the respective photodetecting parts discharge electricity depending on the quantity of light. When they are charged again, a charging current corresponding to the amount of discharge flows, and a three color signal are output by outputting a signal by the charging current at this time.

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