公开(公告)号：JP2002238000A

公开(公告)日：2002-08-23

申请号：JP2001034595

申请日：2001-02-09

Applicant: SONY CORP

Inventor： OKAWA ATSUSHI

IPC: G03B7/093 ,  G03B7/28 ,  G03B15/00 ,  G03B19/02 ,  H04N5/235 ,  H04N5/335 ,  H04N5/353 ,  H04N5/376

Abstract: PROBLEM TO BE SOLVED: To provide an imaging device that conducts smooth exposure control with respect to an illuminance change of an object, while securing proper S/N in a photographing under low illuminance conditions. SOLUTION: The imaging device 1 is provided with a lens section 11, that photographs the image of an object, a CCD 12 that applies photoelectric conversion to an incident light from the lens section, an S/H(sample and hold) circuit 13 that applies sampling and holding to the signals obtained through photoelectric conversion, a gain amplifier AGC 14 that adjust signal level, a signal processing circuit 15 that obtains a video signal, a shutter drive circuit 18 that adjusts the storage time of the electric charges of the CCD 12, and a control section 16 that sorts exposure control by gain adjustment and exposure control by storage time control, on the basis of a sorting pattern.

公开(公告)号：JP2000224469A

公开(公告)日：2000-08-11

申请号：JP2652099

申请日：1999-02-03

Applicant: SONY CORP

Inventor： OKAWA ATSUSHI ,  ITO YASUTAKA

IPC: H04N5/238 ,  G03B7/08 ,  G03B17/02 ,  H04N5/225 ,  H04N5/33 ,  H04N5/372 ,  H04N9/04

Abstract: PROBLEM TO BE SOLVED: To excellently and automatically switch a normal photographing mode and a night vision photographing mode. SOLUTION: In this image pickup device for making image pickup light from an object 2 be incident on an image pickup element 6 through an infrared ray cut filter 5 at the time of the normal photographing mode and irradiating the object 2 with infrared rays and making the image pickup light from the object 2 be incident on the image pickup element 6 without interposing the infrared ray cut filter 5 at the time of the night vision photographing mode, illuminance detection means 19 and 20 composed of an illuminance sensor of lowered infrared ray sensitivity are provided and changeover to the night vision photographing mode is automatically performed when object illuminance by the illuminance detection means 19 and 20 is lowered.

公开(公告)号：JPH08294040A

公开(公告)日：1996-11-05

申请号：JP9875795

申请日：1995-04-24

Applicant: SONY CORP

Inventor： OKAWA ATSUSHI

IPC: H04N5/232

Abstract: PURPOSE: To provide the image pickup device which is directly connected to an information processing unit such as a personal computer or a work station to be easily controlled. CONSTITUTION: When an information processing unit 20 supplies an instruction command to a control section 5 via a general-purpose interface 8, the control section 5 controls a video signal processing section 3 in response to the supplied instruction command to conduct luminance adjustment in response to a detection output of a luminance detection section 11 and white balance adjustment in response to a detection output of a color signal detection section 12. Furthermore, the control section 5 controls a zoom motor drive section 6A, a focus motor drive section 6B, a panning motor dive section 6C and a tilt motor 6D according to the instruction command to conduct zoom adjustment, focus adjustment and adjustment in the image pickup direction.

公开(公告)号：JPS6390718A

公开(公告)日：1988-04-21

申请号：JP23449486

申请日：1986-10-03

Applicant: SONY CORP

Inventor： NOZAKI KAGEHARU ,  KUSANO TAIICHI ,  OKAWA ATSUSHI ,  TAUCHI YOICHIRO

IPC: G01D5/30 ,  G01D5/36

Abstract: PURPOSE:To obtain a displacement quantity detection output with high resolution by performing focus control over a detecting means which detects optically a code pattern formed repeatedly on a code late at constant intervals with laser light. CONSTITUTION:A driving circuit 9 for a driving coil which moves the objective 6 of an optical pickup 1 in optical-axis directions is brought under focus servocontrol and the laser light projected on the code pattern surface is held in the best focus state under the focus servocontrol even if the surface of the code plate 2 waves owing to rotation. The laser light is converged stably by the objective 6 to irradiate with the code pattern surface of the code plate 2 with the laser light having an extremely small spot diameter, and the laser light reflected by the code plate 2 is detected by the photodetector 7 of the optical pickup 3. Consequently, the code pattern with fine pitch is read and the high-resolution encoding output is obtained by the photodetector 7.

公开(公告)号：JPS6390717A

公开(公告)日：1988-04-21

申请号：JP23449686

申请日：1986-10-03

Applicant: SONY CORP

Inventor： NOZAKI KAGEHARU ,  KUSANO TAIICHI ,  OKAWA ATSUSHI ,  TAUCHI YOICHIRO

IPC: G01D5/36 ,  G01D5/30

Abstract: PURPOSE:To obtain a displacement detection output with high resolution by allowing four division detectors to detect optically a code pattern which is formed repeatedly at intervals narrower than the spot diameter of laser light projected on a code plate, and composing an encoding output of respective detection outputs. CONSTITUTION:The photodetector 29 of an optical pickup 20 generates two- phase sine wave detection outputs A-D corresponding to the code pattern 11 by four division detectors 29A-29D, whose in-phase components are put together. Further, the addition composite outputs SC and SD are processed by subtraction to obtain a stable sine wave subtraction composite output SF while canceling offset variations of the respective outputs. The waveform of the subtraction composite output SF is shaped by a waveform shaping circuit 35A. Consequently, an encoding output corresponding to the code pattern formed on the code plate 10 is obtained.