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61. 发明专利

JPH04170848A PICTURE INPUT DEVICE 失效
公开(公告)号：JPH04170848A
公开(公告)日：1992-06-18
申请号：JP29863290
申请日：1990-11-02
申请人： KOBE STEEL LTD , REO GIKEN KK
发明人： YONEDA YASUSHI , SUZUKI AKIO , AZUMA YOSHIZO , NAKAI YASUHIDE , MIKASA YUKIO , YAMAMOTO YUJI , HASHIZUME HIDEHISA
IPC分类号： G03B27/34 , G03G15/04 , H04N1/04
摘要： PURPOSE:To correctly and easily position an original by moving a lens to the direction of an angle theta against the optical axis of the same lens from an origin position by a lens moving means, and simultaneously, positioning the same lens at the position L/costheta distant from the origin position by a positioning means. CONSTITUTION:The lens 15 is moved from the origin position 25 distant by K/2 from the original 5 in the direction to make it more distant than a positioning piece 23 to the direction of the angle theta shown by an expression I against the optical axis 17 of the same lens 15 by a third driving unit 12a as shown by a one-dot-chain line B. In the expression I, K is the picture reading length of an optical line sensor 14, and (f) is the focal length of the lens 15. Further, the lens 15 is positioned at the position L/costheta distant from the origin position, and distance between the lens 15 and the optical line sensor 14 is changed, and the picture of the original is imaged on the optical line sensor 14. Thus, the original can be easily and correctly positioned, and simultaneously, an optional picture area desired to read by high resolution can be easily positioned and set as well.

62. 发明专利

JPH04170846A FITTING STRUCTURE FOR OPTICAL LINE SENSOR 失效
公开(公告)号：JPH04170846A
公开(公告)日：1992-06-18
申请号：JP29863490
申请日：1990-11-02
申请人： KOBE STEEL LTD , REO GIKEN KK
发明人： NISHIMOTO YOSHIRO , YONEDA YASUSHI , SUZUKI AKIO , AZUMA YOSHIZO , YAMAMOTO YUJI , KADOTA KENJI , HASHIZUME HIDEHISA , MIKASA YUKIO
IPC分类号： G02B7/00 , H04N1/028
摘要： PURPOSE:To always obtain the high definition read picture of good quality without deteriorating picture quality through simple and inexpensive configuration by providing a first adjusting means to support an optical line sensor movably in the direction of Z-axis, a second adjusting means to support it rotatably around Z-axis, and a third adjusting means to support it rotatably around Y- axis. CONSTITUTION:The first supporting means to support the optical line sensor 7 movably in the direction of Z-axis is constituted of micrometer heads 9, 10, and besides, the third adjusting means to support the optical line sensor 7 rotatably around Y-axis is constituted of the micrometer head 10 (9). Further, the second adjusting means to support the optical line sensor 7 rotatably around Z-axis is constituted of the micrometer head 11. Accordingly, the fine adjustment of the position and the posture of the optical line sensor 7 can be executed by the micrometer heads 9 to 11. Thus, the good high definition read picture can be always obtained without being accompanied with the deterioration of the picture quality through the simple and inexpensive configuration.

63. 发明专利

JPH0492561A PICTURE INPUT DEVICE 失效
公开(公告)号：JPH0492561A
公开(公告)日：1992-03-25
申请号：JP21094290
申请日：1990-08-08
申请人： KOBE STEEL LTD , REO GIKEN KK
发明人： YASUDA KATSUMI , YONEDA YASUSHI , NISHIMOTO YOSHIRO , SUZUKI AKIO , NAKAI YASUHIDE , AZUMA YOSHIZO , HASEGAWA KIYOSHI , HASHIZUME HIDEHISA , YAMAMOTO YUJI , KADOTA KENJI
IPC分类号： H04N1/04 , G06T1/00 , H04N1/10 , H04N1/107
摘要： PURPOSE:To accurately and easily position an original by obtaining a distance changing means which changes the distance between the original and a lens with use of a lens shift means which shifts the lens in the specific direction, and a specific positioning means. CONSTITUTION:A distance changing means consists of a lens shift means which shifts a lens 15 in the direction set at an angle theta shown in an equation I against the optical axis of the lens 15 from an original point position 25 distant from an original reference end part 23 in the direction distant from an original 5 by K/2 and a positioning means which positions the shifted lens at a position distant from the position 25 by L/costheta. Thus the match is secured between the end part of the original image formed on an optical line sensor 14 and the readend part of the sensor 14. Therefore no time/labor is needed for correction of the original position.

64. 发明专利

JPH03267762A OPTICAL ROTARY ENCODER 失效
公开(公告)号：JPH03267762A
公开(公告)日：1991-11-28
申请号：JP6428990
申请日：1990-03-16
申请人： KOBE STEEL LTD
发明人： HATTORI SHUZO , HANE KAZUHIRO , TAKAMATSU HIROYUKI , SUZUKI AKIO , NISHIMOTO YOSHIRO , JIN YASUHARU , YONEDA YASUSHI , NISHIKAWA KOHEI
IPC分类号： G01P13/04
摘要： PURPOSE:To detect a stable pattern by forming a film which varies in film thickness at a proper pitch in the rotating direction of a rotary body on the surface of the rotary body, detecting variation in light reflection factor with the film thickness, and detecting information on the rotating-direction position of the rotary body. CONSTITUTION:The rotary disk 1A consists of an aluminum substrate 13 and the SiO2 film which is formed by coating. This substrate 13 has recessed parts 13A and projection parts 13B formed alternately by etching at the proper pitch in the rotating direction of the disk 1A and the film 14 is formed covering the recessed parts 13A and projection parts 13B, so that the film thickness of the film 14 varies at the proper pitch in the rotating direction of the disk 1A. The variation in the light reflection factor due to the film thickness variation of the formed film 14 is detected by a photodetector 12 to detect information on the rotating direction of the disk 1A.

65. 发明专利

JPH03267718A LASER PLOTTING METHOD FOR CODE PLATE FOR ROTARY ENCODER 失效
公开(公告)号：JPH03267718A
公开(公告)日：1991-11-28
申请号：JP6429390
申请日：1990-03-16
申请人： UNIV NAGOYA , KOBE STEEL LTD
发明人： HATTORI SHUZO , HANE KAZUHIRO , YONEDA YASUSHI , SUZUKI AKIO , NISHIMOTO YOSHIRO , JIN YASUHARU , TAKAMATSU HIROYUKI , NISHIKAWA KOHEI
IPC分类号： G01D5/30 , G11B7/00 , G11B7/0045 , H03M1/24
摘要： PURPOSE:To obtain high accuracy and high resolution by molding the code plate integrally with its rotary shaft while the coding plate is equipped with an adjusting mechanism which makes the axes of rotation of the code plate coincident with a rotary driving mechanism automatically and fitting the coding plate to the adjusting mechanism through the shaft and making adjustments for the alignment at the time of laser plotting. CONSTITUTION:The main body of the coding plate 1 and its rotary shaft 1a are formed integrally and the inner periphery of the cylindrical wall of the main body is a material surface to be exposed. Further, the coding plate is equipped with the rotary axis adjusting mechanism 17 for making the axes of rotation of both the rotary driving mechanism 16, composed of stages 3 and 4 and goniometers 5 and 6, and the code plate 1 coincident with each other automatically. Further a couple of distance sensors 7a and 7b are provided in the cylinder of the coding plate 1 and the distance to the inner peripheral surface of the cylindrical wall corresponding to the angle phi of the rotation of a rotary base 2 is detected without contacting. Then the deviation and inclination of the rotary axis are detected with high accuracy and adjusted automatically. Consequently, an error in plotting is prevented from being generated and the encoder which has the high accuracy and high resolution is realized.

66. 发明专利

JPH03267707A DEFOCUSING DETECTING DEVICE 失效
公开(公告)号：JPH03267707A
公开(公告)日：1991-11-28
申请号：JP6428890
申请日：1990-03-16
申请人： KOBE STEEL LTD
发明人： HATTORI SHUZO , HANE KAZUHIRO , JIN YASUHARU , SUZUKI AKIO , NISHIMOTO YOSHIRO , YONEDA YASUSHI , TAKAMATSU HIROYUKI , NISHIKAWA KOHEI
IPC分类号： G01C3/06 , G02B7/28
摘要： PURPOSE:To obtain sufficient defocusing detection sensitivity by a compact optical system by forming an annular photoelectric conversion surface and further dividing it equally into four parts. CONSTITUTION:Reflected light from an object surface 1 is made incident on a photodetecting element 4A by passing through an aspherical lens 2a, a spherical lens 2, and a cylindrical lens 3 and the element 4A is arranged at a focusing position where circular converged light from the lens 3 is photodetected when the object surface 1 is at a specific position. The lens 3 deforms the converged light into an elliptic shape as defocusing is caused. The element 4A is formed annularly and divided equally into the four parts 4-1 to 4-4, the internal diameter 2RB is made less than the external diameter 2RS of the circular converged light at the time of focusing, and the respective parts 4-1 to 4-4 are connected to a differential amplifier to output a defocusing detection signal. Consequently, if defocusing is caused, the ratio of the projection area of the elliptic converged light on a divided surface in the major-axis direction and the projection area in the minor-axis direction becomes large, so that defocusing detection sensitivity can be increased.

67. 发明专利

JPH02310433A METHOD AND DEVICE FOR DETECTING POSITION AND DISPERSION OF LIGHT INPUT 失效
公开(公告)号：JPH02310433A
公开(公告)日：1990-12-26
申请号：JP13152289
申请日：1989-05-26
申请人： KOBE STEEL LTD
发明人： NAKAGAMI AKIMITSU , ONISHI YOSHIHIKO , TACHIBANA HIROYUKI , INOUE TAKAYOSHI , NISHIMOTO YOSHIRO , YONEDA YASUSHI , IMAOKA SHINICHI , NAKAI YASUHIDE
IPC分类号： G01B11/00 , G01J1/44 , G01N21/88 , G02B7/32
摘要： PURPOSE:To detect the position of a light input and the information of dispersion with accuracy by detecting a primary output which is proportioned to the mean value of a distance between the end part of a photoelectric converting body and the position of the light input and a secondary output which is proportioned to the square mean value of the distance. CONSTITUTION:At first, the light intensity of the light input is obtained by using the photoelectric converting bodies 19-1 to 19-3 and also the 1st or the 2nd mean value of the distance from the one end part or the other end part of the photoelectric converting bodies 19-1 to 19-3 which are weighted by the light intensity to the position of the light input and the 1st or the 2nd square mean value of the distance from the one end part or the other end part of the photoelectric converting bodies 19-1 to 19-3 to the position of the light input are detected. And then, after fetching the primary output which is proportioned to the 1st or the 2nd mean value of the distance between the photoelectric converting bodies 19-1 to 19-3 on the basis of the detected light intensity and the 1st or the 2nd mean value, and also fetching the secondary output which is proportioned to the square mean value of the distance between the photoelectric converting bodies 19-1 to 19-3 on the basis of the detected light intensity and the 1st or the 2nd square mean value, the position of the light input is calculated and furthermore, the dispersion of the light input is calculated on the basis of the primary and the secondary outputs.

68. 发明专利

JPH0192644A DETECTING DEVICE FOR SURFACE STATE 失效
公开(公告)号：JPH0192644A
公开(公告)日：1989-04-11
申请号：JP25042787
申请日：1987-10-02
申请人： KOBE STEEL LTD
发明人： NAKAI YASUHIDE , NISHIMOTO YOSHIRO , YONEDA YASUSHI , ARAI AKIO
IPC分类号： G01N21/88 , G01N21/89 , G01N21/95 , G01N21/956
摘要： PURPOSE:To remove vibration components and to extract only a component of variation due to a defect by comparing bright point position signals of two kinds of light beams which differ in beam diameter and generating their difference signal. CONSTITUTION:The surface of an object is irradiated with the two kinds of light beams which differ in beam diameter by laser beam irradiating devices 2 and 6 and 1st and 2nd bright point position detectors 5 and 8 detect their reflected light beams. A comparator 9 compares the bright point position signals I1 and I2 from two bright position detectors 5 and 8 with each other and outputs the signal I3 generated by removing their in-phase components. This signal I1 contains both a defect component and a vibration component. The bright point position signal I2, on the other hand, contains only the vibration component. The output signal I3 of the comparator 9 contains only the defect component.

69. 发明专利

JPS63292004A POSITIONAL DETECTION 失效
公开(公告)号：JPS63292004A
公开(公告)日：1988-11-29
申请号：JP12757987
申请日：1987-05-25
申请人： KOBE STEEL LTD
发明人： NAKAI YASUHIDE , NISHIMOTO YOSHIRO , YONEDA YASUSHI , ARAI AKIO
IPC分类号： G01D5/347 , G01B11/00 , G01D5/34
摘要： PURPOSE:To attain a high response speed and a high resolution, by a method wherein an optical filter whose transmittivity for incident light increases monotonously in a prescribed direction is disposed on the path of the light. CONSTITUTION:When a light beam L is applied at a prescribed angle to a substance 7 to be inspected, the direction of a reflected light R thereof is varied in accordance with the unevenness of the substance 7 to be inspected, and it is found by detecting the position of incidence in an optical fiber 5. The reflected light R is divided in two by a beam splitter 8, and a split reflected beam R1 enters a photosensitive element 9 through the filter 5, while a divided reflected light R2 enters a photosensitive element 10. Detected light intensity values S1 and S2 detected thereby are sent to an arithmetic circuit 11. The filter 5 adopted herein has a characteristic of transmittivity T (X) expressed by the formula I. When the light intensity of the light R is denoted by Ii, the light intensities of the beams R1 and R2 are Ii/2 respectively. Since the ranges of the two lights are identical, the ratio between the detected values S1 and S2 becomes equal to the ratio between light beam intensities I and I0 after and before the light passes through the filter 5. Accordingly, an incidence position X1 can be determined by an operation in the circuit 11 on the basis of the formula II.

70. 发明专利

JPS63212832A DETECTION OF POSITION AND VARIANCE OF LIGHT INPUT AND INSTRUMENT FOR THE SAME 失效
公开(公告)号：JPS63212832A
公开(公告)日：1988-09-05
申请号：JP23094687
申请日：1987-09-17
申请人： KOBE STEEL LTD
发明人： NISHIMOTO YOSHIRO , YONEDA YASUSHI , IMAOKA SHINICHI , NAKAI YASUHIDE , NAKAGAMI AKIMITSU , ONISHI YOSHIHIKO , TACHIBANA HIROYUKI , INOUE TAKAYOSHI , KUSAKA TAKUYA , TAKAMATSU HIROYUKI , TOJO SHIGEKI , KAJIKAWA HIROSHI , NISHIMURA KOZO
IPC分类号： G01B11/00 , G01J1/02 , G01M11/00 , G01N21/88 , H01L27/14 , H01L31/02 , H01L31/0216 , H01L31/16
摘要： PURPOSE:To obtain the position and the variance of light input with ease at a low cost and with a quick response by detecting primary output proportional to the mean value of distances between the ends of a photoelectric transducer and the position of light input and secondary output proportional to square mean value of said distances. CONSTITUTION:Primary output is detected by current values i1 and i2 obtained from both the ends 4 and 5 of a first resistance layer 1. On the other hand, secondary output is detected by current values j1 and j2 obtained from both the ends 6 and 7 of a second resistance layer 2. From the values of detected current, K10.integral x.rho(x)dx/integral rho(x)dx is obtained as the primary output proportional to the mean value (position of center of gravity) inversion (x) of distances between the ends 4-7 of a photoelectric transducer and a light input position A. Further, K20.integral x .rho(x)dx/integral rho(x)dx is obtained as the secondary output proportional to the square mean value inversion x of said distances. Based on those outputs, a light input position inversion (x) is detected as integral x.rho(x)dx/integral rho(x)dx and the variance sigma of light input is detected by formula I.

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