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1. 发明专利

JPH0815577A RESIN MOLDED RECEPTACLE AND ITS PRODUCTION 失效
公开(公告)号：JPH0815577A
公开(公告)日：1996-01-19
申请号：JP14983594
申请日：1994-06-30
申请人： HAMAMATSU PHOTONICS KK , KYOCERA CORP
发明人： KYOMASU MIKIO , IKETANI TAKESHI , YASUDA TOSHIMICHI , IKEGAMI SHIN , YAMAGISHI TAKASHI
IPC分类号： G02B6/42
摘要： PURPOSE:To provide a resin molded receptacle which is formed by using a resin, aligns the optical axis of light from an optical semiconductor element and the optical axis of a fiber and prevents fluctuating of a ferrule inserted into a sleeve in an axial direction of this sleeve and a process for producing the same. CONSTITUTION:This resin molded receptacle has the sleeve 30 and a selfoc lens 40 in a case 10 integrally molded of a resin type material. The receptacle has a laser diode 50 in the case 10. An SC connector holding part 20 composed of 20a to 20e is fixed to the outside wall of the case 10. A pinhole member 60 which is formed to an approximate disk shape (toric shape) and is bored with a through-hole penetrating the central axis thereof is installed in the sleeve 30.

2. 发明专利

JPH0811142A COMPOSITE MOLD FOR MOLDING RESIN 失效
公开(公告)号：JPH0811142A
公开(公告)日：1996-01-16
申请号：JP14984494
申请日：1994-06-30
申请人： HAMAMATSU PHOTONICS KK , KYOCERA CORP
发明人： KYOMASU MIKIO , IKETANI TAKESHI , YASUDA TOSHIMICHI , IKEGAMI SHIN , YAMAGISHI TAKASHI
IPC分类号： G02B6/38 , B29C39/02 , B29C39/26 , B29L11/00 , B29L31/36 , G02B6/42
摘要： PURPOSE:To provide a composite mold for molding a resin to produce a resin molded receptacle while enabling the optical axis of the light from an optical semiconductor element to coincide with that of a fiber. CONSTITUTION:A lower mold 310 has an almost rectangular parallelepiped shape and has a plurality of recessed and protruding parts on the upper surface thereof. At first, a square hole 310p having a square plate shape is provided to the central part of the upper surface of the mold and a cylindrical hole 310q is provided centering around the center axis of the square hole 310p. A first column part 310b is formed by providing the cylindrical hole 310q and a second column part 310z having a diameter smaller than that of the first column part 310b is integrally molded on the first column part 310b using the axis of the first column part 310b as a common axis. The second column part 310z has a truncated coneshape structure wherein the diameter of the leading end thereof is smaller than that of the connection part with the first column part 310b being the lower end thereof.

3. 发明专利

JPH0996744A OPTICAL MODULE PACKAGE 失效
公开(公告)号：JPH0996744A
公开(公告)日：1997-04-08
申请号：JP25368895
申请日：1995-09-29
申请人： KYOCERA CORP , HAMAMATSU PHOTONICS KK
发明人： YAMAGISHI TAKASHI , WARASHINA SADAHISA , KYOMASU MIKIO , OBA KOJI
IPC分类号： G02B6/42
摘要： PROBLEM TO BE SOLVED: To reduce the cost of an assembling device and to shorten the time of an assembling process by interposing and joining a ferrule stopper and a lens holder between a sleeve and a package. SOLUTION: Between the sleeve 300 for inserting and holding the ferrule of an optical connector and the package 260 provided with a light receiving and emitting element 230, the ferrule stopper 280 and the lens holder 220 are interposed and joined. In the process of finely adjusting the tip of an optical fiber or an optical fiber mount, the need of finely adjusting the tip of the optical fiber or the optical fiber mount the narrow upper part window of the package 260 is eliminated. Thus, the assembling device can perform an adjustment process from the outside of the package 260 and the cost of the assembling device is reduce on the occasion of manufacturing the assembling device. Also, since the time of the assembling process is shortened as well, the assembling cost of this optical module package is reduced.

4. 发明专利

JPH0996743A RECEPTACLE TYPE OPTICAL MODULE 失效
公开(公告)号：JPH0996743A
公开(公告)日：1997-04-08
申请号：JP25368795
申请日：1995-09-29
申请人： KYOCERA CORP , HAMAMATSU PHOTONICS KK
发明人： YAMAGISHI TAKASHI , WARASHINA SADAHISA , KYOMASU MIKIO , OBA KOJI
IPC分类号： G02B6/42
摘要： PROBLEM TO BE SOLVED: To prevent optical characteristics from drastically changing even if a temp. change arises by arranging a sleeve, a metallic housing body and photoelectric conversion elements by aligning their optical axes to the inner side of a resin body. SOLUTION: A connector having an optical fiber in an axial direction is inserted into a receptacle type optical module and a lens 2 is interposed between the photoelectric conversion elements 3 to convert a light signal to an electric signal. The sleeve 5 to be inserted with the ferrule of the optical connector, the metallic housing body 11 integrally formed with a ferrule stopper part 1 for pressing the front end of the ferrule and a lens holder part for holding the lens 2 and the photoelectric conversion elements 3 are arranged by aligning the optical axes A-A to the inner side of the resin body 6. As a result, the drastic change in the optical characteristics by the dimensional change in the position of the ferrule stopper part 1 and the photoelectric conversion elements 3 or the lens mounting part at the time of fitting the connector from the shrinkage of the resin in case the temp. change is induced by the large coefft. of thermal expansion of the resin does not arise in the resin receptacle.

5. 发明专利

JPH0996742A MODULE FOR OPTICAL COMMUNICATION 失效
公开(公告)号：JPH0996742A
公开(公告)日：1997-04-08
申请号：JP25368695
申请日：1995-09-29
申请人： KYOCERA CORP , HAMAMATSU PHOTONICS KK
发明人： WARASHINA SADAHISA , KYOMASU MIKIO , OBA KOJI , YAMAGISHI TAKASHI
IPC分类号： G02B6/42
摘要： PROBLEM TO BE SOLVED: To provide a module for optical communication capable of preventing modal noise and mode hopping by simple and inexpensive constitution without disturbing the standardized system of the optical communication. SOLUTION: In this module for the optical communication provided with a sleeve 3 to which the terminal of a ferrule 2 provided with an optical fiber 1 is inserted and a photoelectric conversion element 4 for transferring optical signals with the optical fiber 1, a reflection prevention member 5 provided with light transmissivity for which one end face 7 is in direct contact with the end face of the ferrule 2 and a reflection prevention processing is performed to the end face 8 on the opposite side by AR(anti-reflection) coating 9 for instance is provided between the sleeve 3 and the photoelectric conversion element 4.

6. 发明专利

JPH0815576A RESIN MOLDED RECEPTACLE AND ITS PRODUCTION 失效
公开(公告)号：JPH0815576A
公开(公告)日：1996-01-19
申请号：JP14982794
申请日：1994-06-30
申请人： HAMAMATSU PHOTONICS KK , KYOCERA CORP
发明人： KYOMASU MIKIO , IKETANI TAKESHI , YASUDA TOSHIMICHI , IKEGAMI SHIN , YAMAGISHI TAKASHI
IPC分类号： G02B6/42
摘要： PURPOSE:To provide a resin molded receptacle for aligning the optical axes of an optical semiconductor element and a fiber by using a resin and a process for producing the same. CONSTITUTION:This resin molded receptacle has a sleeve 30 and a selfoc lens 40 in a case 10 integrally molded of a resin-type material. The receptacle has a laser diode 50 in this case 10. An SC connector holding part 20 composed of 20a to 20e is fixed to the outside wall of the case 10. The through-hole of the case 10 is composed of a hole 30z which is regulated by the inside wall of the approximately cylindrical sleeve 30 of which the outside wall is fixed into the case 10, a through-hole 10z which communicates with the hole 30z and has the diameter smaller than the diameter of this hole 30z and a hole 50z which has the diameter larger than the diameter of this hole 10z and is used for installation of the optical semiconductor element.

7. 发明专利

JPH10247757A LIGHT EMITTING MODULE FOR LIGHT COMMUNICATION 失效
公开(公告)号：JPH10247757A
公开(公告)日：1998-09-14
申请号：JP4879997
申请日：1997-03-04
申请人： NIPPON TELEGRAPH & TELEPHONE , HAMAMATSU PHOTONICS KK
发明人： ICHINO HARUHIKO , HIROSE MASAKI , WARASHINA SADAHISA , KYOMASU MIKIO
IPC分类号： G02B6/42 , H01L31/0232 , H01S3/04 , H01S5/00 , H01S5/024 , H01S5/026 , H01S3/18 , H01S3/043
摘要： PROBLEM TO BE SOLVED: To realize a light communication light emitting module which is excellent in heat dissipating properties and capable of operating on a G bit/s band at an ultra-high speed by a method wherein an LD driver IC is mounted direct on a heat sink through the intermediary of no board, and an LD and the LD driver IC are directly connected together with a bonding wire. SOLUTION: An LD 1 is mounted on a sub-mount 2 together with a sub- carrier 6 mounted with a PD 5 and a temperature detecting thermistor 8, and the sub-mount 2 is arranged on a Peltier device 3. On the other hand, an LD driver IC 4 is mounted direct on a heat sink 10. A board 9 is partly cut out so as not to impede the mounting of the LD driver IC 4 and mounted on the heat sink 10. Electrical signals are inputted into the LD driver IC 4 through a wiring pattern 7 on the board 9 and a bonding wire 12 between the board 9 and the LD driver IC 4. Drive signals are transmitted direct from the LD driver IC 4 to the LD 1 through the bonding wire 12.

8. 发明专利

JPH08234059A OPTICAL MODULE DEVICE 失效
公开(公告)号：JPH08234059A
公开(公告)日：1996-09-13
申请号：JP3687395
申请日：1995-02-24
申请人： HAMAMATSU PHOTONICS KK
发明人： WARASHINA SADAHISA , KYOMASU MIKIO
IPC分类号： G02B6/42 , H01L31/02 , H01L33/58 , H01L33/00
摘要： PURPOSE: To provide an optical module device which is suitable for mass production and with which exact axis alignment is possible. CONSTITUTION: A resin molding type case 11 is formed of a resin. The circumference at the end of a base plate 14a of a light emitting and receiving element 14 is adhered to the case 11 by a photosetting resin 16. The bottom of the base plate 14a projected with lead pins 16b is closed by a gelatinous resin 18. Further, a thermosetting resin 19 is laminated on the gelatinous resin 18. The shrinkage strain generated in the thermosetting resin 19 is absorbed in the gelatinous resin 18 and the mounting position of the light emitting and receiving element 14 does not change in spite of the occurrence of such shrinkage strain.

9. 发明专利

JPH07336196A OSCILLATION CIRCUIT 失效
公开(公告)号：JPH07336196A
公开(公告)日：1995-12-22
申请号：JP12516594
申请日：1994-06-07
申请人： HAMAMATSU PHOTONICS KK
发明人： OKAJIMA KENICHI , KYOMASU MIKIO
IPC分类号： H03K3/0231 , H03K4/50
摘要： PURPOSE:To obtain the oscillation output of a large duty rate by intermittently controlling a charging current to a second capacitor by means of a first switch corresponding to the oscillation output of a first relaxation oscillator so as to reduce the average charging current and increase charging time to the second capacitor. CONSTITUTION:In a state where the electric charge of the capacitor C2 is discharged, the voltage of the reverse input of a second differential amplifier 123 is lower than that of not-reverse input so that the output of the amplifier 123 comes into a state L. The charging current from a constant current source circuit QP10 is integrated by the capacitor C2 when the output of the relaxation oscillator 110 is L, but FETM 1 is in an off state at the time of the output of the relaxation oscillator 110 is H so that the electric charge collected at the capacitor C2 is kept being held so as to make the integrated voltage of C2 constant. Consequently, the charging current from the circuit 11 is made to flow intermittently by the output of the oscillator 110 so that the integrated voltage C2, namely the voltage of the not-reverse input of the second amplifier 123, is boosted gradually. The duty rate of the relaxation oscillator 120 is made 1:1000 to 2000 like this.

10. 发明专利

JPH05291614A 失效
公开(公告)号：JPH05291614A
公开(公告)日：1993-11-05
申请号：JP8376992
申请日：1992-04-06
申请人： HAMAMATSU PHOTONICS KK
发明人： KYOMASU MIKIO
IPC分类号： H01L31/16
摘要： PURPOSE:To obtain a title device which outputs only a photocurrent corresponding to the light energy of an incident light spot by connecting a bypass resistance formed of a nondoped silicon layer to every microimpurity layer. CONSTITUTION:A photocurrent generated by light incidence into a photodiode Da (i) is fetched according to frequency characteristics having a cut-off frequency determined by a bias resistance R (i) corresponding to this photodiode Da (i) and a coupling capacitance. Hereupon, when the resistance value of the bias resistance R (i) is small, the coupling capacitance is a very small capacitance value, so that resistance cut-off frequency is very high. However, since the bias resistance is formed of a polysilicon layer, a high resistance can be realized; therefore, even when the coupling capacitance is a very small capacitance value, frequency characteristics having a reduction cut-off frequency optimum to fetch a photocurrent can be set, resulting in an improvement in the precision of photocurrent sensing.

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