公开(公告)号：US3925603A

公开(公告)日：1975-12-09

申请号：US47615374

申请日：1974-06-03

Applicant: SONY CORP

Inventor： NARUSE YOSUKE ,  YOSHIOKA TAISUKE ,  HIMURO MASAMI ,  ITO KEIICHI

IPC: H04N5/85 ,  G11B7/09 ,  H04N5/76 ,  G11B7/12

CPC classification number: G11B7/0912

Abstract: An apparatus for recording and/or reproducing information signals is disclosed in which a light beam is substantially forcussed on the mirror surface of a recording medium, the information signals are recorded on said recording medium with said light beam, and the recorded information signals are reproduced with said light beam. The apparatus comprises an optical detecting device for detecting the light beam reflected on the recording medium at least two different positions and a control device for controlling the focus of said light beam in accordance with the output signal from the optical detecting device.

Abstract translation: 公开了一种用于记录和/或再现信息信号的装置，其中光束基本上被击打在记录介质的镜面上，信息信号用所述光束记录在所述记录介质上，并且记录的信息信号被再现 与所述光束。 该装置包括用于检测至少两个不同位置在记录介质上反射的光束的光学检测装置和用于根据来自光学检测装置的输出信号控制所述光束的焦点的控制装置。

公开(公告)号：FR2490910A1

公开(公告)日：1982-03-26

申请号：FR8117802

申请日：1981-09-21

Applicant: SONY CORP

Inventor： HIMURO MASAMI ,  NISHIGAKI SUSUMU ,  TERUNUMA KAZUHIKO

IPC: H04N9/22 ,  H04N9/26

Abstract: A color image reproducing apparatus having particular utility as a color view finder for a color image pick-up apparatus includes a black and white cathode ray tube for producing a black and white image in response to red, green and blue primary color control signals sequentially supplied thereto; a color filter including red, green and blue horizontal color filter stripes adapted to transmit light of a red, green and blue color, respectively, and arranged vertically in the order of green, blue, red, green, red, blue and green stripes; and electronic shutter for sequentially permitting the transmission of light from the black and white image through the red, green and blue color filter stripes, corresponding to the supply of the red, green and blue primary color control signals to the cathode ray tube, to form a composite color image at a predetermined position; and an objective lens for projecting the black and white image transmitted through the electronic shutter and the color filter stripes to the predetermined position.

公开(公告)号：AU7549481A

公开(公告)日：1982-03-25

申请号：AU7549481

申请日：1981-09-18

Applicant: SONY CORP

Inventor： HIMURO MASAMI ,  NISHIGAKI SUSUMU ,  TERUNUMA KAZUHIKO

IPC: G03B13/02 ,  H04N9/22 ,  H04N5/26 ,  H04N5/34

公开(公告)号：ZA7601429B

公开(公告)日：1977-03-30

申请号：ZA7601429

申请日：1976-03-09

Applicant: SONY CORP

Inventor： TAKEUCHI KOUICHI ,  KOUICHI TAKEUCHI ,  ITOH NORIO ,  NORIO ITOH ,  HIMURO MASAMI ,  MASAMI HIMURO ,  KOYAMA KUNIYOSHI ,  KUNIYOSHI KOYAMA ,  SHIMADA SATOSHI ,  SATOSHI SHIMADA

IPC: H04N5/74 ,  H04N9/31 ,  H01J

CPC classification number: H04N9/3141 ,  H04N9/31

公开(公告)号：CA1214534A

公开(公告)日：1986-11-25

申请号：CA444466

申请日：1983-12-30

Applicant: SONY CORP

Inventor： MURANO KANJI ,  NISHIGAKI SUSUMU ,  HIMURO MASAMI ,  WATANABE YOSHIHISA

IPC: G02F1/055 ,  G02F1/00

Abstract: An electro-optic light shutter is disclosed which includes a ceramic body having electro-optic effect and a pair of electrodes applying A.C. voltage to the ceramic body to cause electro-optic effect, wherein the ceramic body is formed of PLZT ceramics having memory effect at a room temperature and loses the memory effect at an elevated operating temperature caused by application of A.C. voltage to the ceramic body.

公开(公告)号：AU522038B2

公开(公告)日：1982-05-13

申请号：AU4093478

申请日：1978-10-20

Applicant: SONY CORP

Inventor： HIMURO MASAMI ,  YAMADA TOSHIRO ,  MAKINO YOSHIMI

IPC: G11B5/02 ,  G11B5/39 ,  G11B5/49 ,  G11B11/10 ,  G11B11/105 ,  H01F10/22 ,  G11B5/12

Abstract: A pick-up device for reading out information which has been recorded on a magnetic medium. The device comprises a substrate and a layer of soft magnetic material overlying a surface of the substrate, the easy axis or direction of magnetization being normal to the surface and the magnetic material having properties capable of having magnetic bubble domains generated and propagated therein, so that when the pick-up device is used to read out information from a magnetic medium, patterns of magnetic domains are formed in the layer of magnetic material corresponding to the patterns of the recorded information. Although the magnetic material is of the type capable of having magnetic bubble domains generated and propagated therein, there is no need to provide the usual bias field for maintaining the bubble domains or for providing domain-transport or domain-annihilating fields. In one use of the pick-up device, light is transmitted through the substrate and through the layer of magnetic material to be reflected from a layer of light-reflective material back through the magnetic material and the substrate, whereby the polarization of the reflected light is rotated, relative to the polarization of the transmitted light, by an amount determined by the patterns of magnetic domains formed in the layer of magnetic material. Hence, the recorded information can be optically read from the magnetic medium. In another use of this device, a magnetoresistive head is disposed on the substrate, the resistance of this magnetoresistive head being varied as a function of the patterns of magnetic domains formed in the layer of magnetic material.

公开(公告)号：DE2845604A1

公开(公告)日：1979-05-03

申请号：DE2845604

申请日：1978-10-19

Applicant: SONY CORP

Inventor： HIMURO MASAMI ,  YAMADA TOSHIRO ,  MAKINO YOSHIMI

IPC: G11B5/02 ,  G11B5/39 ,  G11B5/49 ,  G11B11/10 ,  G11B11/105 ,  H01F10/22

Abstract: A pick-up device for reading out information which has been recorded on a magnetic medium. The device comprises a substrate and a layer of soft magnetic material overlying a surface of the substrate, the easy axis or direction of magnetization being normal to the surface and the magnetic material having properties capable of having magnetic bubble domains generated and propagated therein, so that when the pick-up device is used to read out information from a magnetic medium, patterns of magnetic domains are formed in the layer of magnetic material corresponding to the patterns of the recorded information. Although the magnetic material is of the type capable of having magnetic bubble domains generated and propagated therein, there is no need to provide the usual bias field for maintaining the bubble domains or for providing domain-transport or domain-annihilating fields. In one use of the pick-up device, light is transmitted through the substrate and through the layer of magnetic material to be reflected from a layer of light-reflective material back through the magnetic material and the substrate, whereby the polarization of the reflected light is rotated, relative to the polarization of the transmitted light, by an amount determined by the patterns of magnetic domains formed in the layer of magnetic material. Hence, the recorded information can be optically read from the magnetic medium. In another use of this device, a magnetoresistive head is disposed on the substrate, the resistance of this magnetoresistive head being varied as a function of the patterns of magnetic domains formed in the layer of magnetic material.

公开(公告)号：CH597736A5

公开(公告)日：1978-04-14

申请号：CH302176

申请日：1976-03-11

Applicant: SONY CORP

Inventor： TAKEUCHI KOUICHI ,  ITOH NORIO ,  SHIMADA SATOSHI ,  HIMURO MASAMI

IPC: H04N5/74 ,  H04N9/31

公开(公告)号：AU1188676A

公开(公告)日：1977-09-15

申请号：AU1188676

申请日：1976-03-11

Applicant: SONY CORP

Inventor： TAKEUCHI KOUICHI ,  ITOH NORIO ,  KOYAMA KUNIYOSHI ,  SHIMADA SATOSHI ,  HIMURO MASAMI

IPC: H04N5/74 ,  H04N9/31 ,  G09F13/42

公开(公告)号：CA1172351A

公开(公告)日：1984-08-07

申请号：CA385950

申请日：1981-09-15

Applicant: SONY CORP

Inventor： HIMURO MASAMI ,  NISHIGAKI SUSUMU ,  TERUNUMA KAZUHIKO

IPC: H04N9/22 ,  H04N9/04

Abstract: 38/SOl471 A color image reproducing apparatus having particular utility as a color view finder for a color image pick-up apparatus includes a black and white cathode ray tube for producing a black and white image in response to red, green and blue primary color control signals sequentially supplied thereto; a color filter including red, green and blue horizontal color filter stripes adapted to transmit light of a red, green and blue color, respectively, and arranged vertically in the order of green, blue, red, green, red, blue and green stripes; an electronic shutter for sequentially permitting the transmission of light from the black and white image through the red, green and blue color filter stripes, corresponding to the supply of the red, green and blue primary color control signals to the cathode ray tube, to form a composite color image at a predetermined position; and an objective lens for projecting the black and white image transmitted through the electronic shutter and the color filter stripes to the predetermined position.