公开(公告)号：JPS57184918A

公开(公告)日：1982-11-13

申请号：JP6898681

申请日：1981-05-08

Applicant: NAT AEROSPACE LAB

Inventor： SAKURAI YOSHIO ,  KIMURA TAKEO

IPC: G01B11/16 ,  G01D5/347 ,  G01D5/38

Abstract: PURPOSE:To measure the fine displacement of a surface to be measured with a high accuracy and in non-contacting manner by a method in which the period of double Moir e signal originated by focusing the lattice pattern of equal pitches provided on the surface of an object to be measured on the light receiving face of a solid image pickup element is measured. CONSTITUTION:White-black lattice pattern 1 of equal pitches is provided on the surface of an object 10 to be measured, and its image 11 is focused on the light receiving face of a sensor 12 by an optical system 2. The x axle of the sensor 12 is crossed with the longitudinal (y) direction of the lattice pattern 11 and photoelectric conversion elements (picture element) having same sizes are aligned linearly with equal intervals of the pitch r in the x axle direction. The pitch w of the elements 11 is increased to two times the pitch r by adjusting the optical system 2. When the center of the bright stripe of the lattice pattern 11 coincides with the center of the element 13, the envelope of output signal becomes two parallel lines, but when the pitch w is changed by fine displacement due to the expansion or shrinkage of the face 10 to be detected, a different signal of 180 deg. phase of the period of To according to the displacement is obtained. Thus, fine displacement can be measured with a high accuracy in non-contact manner.

公开(公告)号：JPS56153484A

公开(公告)日：1981-11-27

申请号：JP5631080

申请日：1980-04-30

Applicant: NAT AEROSPACE LAB

Inventor： ISOBE TOSHIO ,  SAKURAI YOSHIO

IPC: G06K9/20 ,  G01S3/782 ,  G06K9/36 ,  G06T1/00 ,  G06T3/00 ,  G06T7/60

Abstract: PURPOSE:To facilitate the preprocessing adapted for the purpose, by making the picture signal binary and by counting data of the picture pattern in accordance with the purpose. CONSTITUTION:Solar image 11 projected on the CCD image sensor is divided into faces 12, 13, 14 and 15 having 64X64 constitution. Data 0, 1, 2 and 3 are written into memories corresponding to thse divided faces. Therefore, when the sensor scans the region of face 12, memory outut 6 becomes 0, and data which passed through binary circuit 7 is led to the 0th counter of counter group 9 by multiplexer 8. Consequently, numbers proportional to areas of solar image 11 projected onto respective divided faces are counted by counters corresponding to respective divided faces. If the direction of picture converting device 1 is so determined by a computer that these divided areas are equal to one another, this direction becomes the center of the sun, and tracking is possible.

公开(公告)号：JPS60250209A

公开(公告)日：1985-12-10

申请号：JP10672284

申请日：1984-05-26

Applicant: NAT AEROSPACE LAB ,  TOSHIBA KK

Inventor： NAKAJIMA ATSUSHI ,  SAKURAI YOSHIO ,  KOMATSU KOUICHI ,  KAMEDA YOSHIHIKO

IPC: G01C21/24 ,  B64G1/36 ,  G01J1/42 ,  G01S3/786

Abstract: PURPOSE:To reduce electric power consumption, by installing in vertical transfer CCD, horizontal transfer CCD and read-out circuits, a means of controlling transfer and storage of stored charge of photoelectric conversion elements of both fields performed in due order. CONSTITUTION:To an image developing member available for 2-dimensional development with 1/2 of number of vertical transfer CCD112 with respect to a number of photoelectric conversion elements combining odd and even fields, the No.1 means available for simultaneous transfer of charges accumulated in each photoelectric conversion elements of both fields to the vertical transfer CCD112, the No.2 means for transfer of charge from the vertical transfer CCD112 to the horizontal transfer CCD113 and for (n) time [(n): integer larger than 1] charge accumulations to the horizontal transfer CCD113 and then No.3 means for resetting a charge transfer from the horizontal transfer CCD113 to a read-out circuit 114 once per (m) times [(m): integer larger than 1] are installed, and number of vertical image elements are compressed to 1/2n and that of horizontal ones to 1/m.

公开(公告)号：JPS57104821A

公开(公告)日：1982-06-30

申请号：JP18146680

申请日：1980-12-22

Applicant: NAT AEROSPACE LAB

Inventor： SAKURAI YOSHIO

IPC: G01J1/02 ,  G02B6/04 ,  G02B6/28 ,  G02B6/42 ,  G02B26/10 ,  H04N5/335

Abstract: PURPOSE:To provide a flexible combination of the optical system and a sensor by inserting an optical fiber bundled in an array and an auxiliary optical system between an image forming surface of the optical system and a sensor for photoelectric convertion of the intensity of illumination in the radiation on the surface. CONSTITUTION:A light receiving surface 19 corresponding to a sensor contained in a light receiving surface 18 of a ribbon fiber 17 is so arranged on an image forming surface 3 of an optical system 2 that the lateral direction of the light receiving surface 19 is at the right angle to the direction of the camera advances. A new optical system 23 permits light emitting surfaces 22A and 22B corresponding to a sensor contained in individual light emitting surfaces 21 of the ribbon fiber 17 to form images these new objects, namely an image of the light emitting surface 22A corresponding to a sensor on the right in the drawing on a photoelectric conversion unit 26 of a sensor 24 on the left and an image of the light emitting surface 22B corresponding to a sensor on the left on a photoelectric conversion unit 27 of a sensor 25 on the right.

公开(公告)号：JPS60250210A

公开(公告)日：1985-12-10

申请号：JP10672384

申请日：1984-05-26

Applicant: NAT AEROSPACE LAB ,  TOSHIBA KK

Inventor： SAKURAI YOSHIO ,  NAKAJIMA ATSUSHI ,  KOMATSU KOUICHI

IPC: G01C21/24 ,  B64G1/36 ,  G01J1/42 ,  G01S3/786

Abstract: PURPOSE:To reduce electric power consumption, by installing computers, etc. together with clock-cycle switching circuit and comparing circuit for levels of output of image developing member and threshold value and performing identificating operation of a targeted star for its image and storing the image of it. CONSTITUTION:An output of a clock generator 12 is supplied to terminals (a), (b) of a chonge-over switch 24 directly and through 1/n divider 25 clock pulses are delivered to horizontal drive circuit 15, horizontal computer 14 and timing generator 23 and an output of a pre-amplifier 19 is applied to the (t) input terminal of an analog-comparator 26 and an output of a threshold value generating level setter 27 to the (-) input terminal respectively. Further, outputsf of 22, 17, 18, 28 of A/D convertor 21, horizontal vertical pulse counters 14, 16 and comparator 26 are supplied to an input member 291 consisting of calculation processing member (CPU)292, No.1 and No.2 memory members 293, 294 respectively.