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41.发明专利
公开(公告)号：JPH07240817A
公开(公告)日：1995-09-12
申请号：JP3013494
申请日：1994-02-28
Applicant: DAINIPPON SCREEN MFG
Inventor： UMAGOE SHOICHI , OKUDA TAKESHI
IPC: G01R31/26 , G01J1/28 , G01J1/42 , G06K9/20 , G06T1/00 , H01L21/66 , H04N1/028 , H04N1/04 , H04N1/40
Abstract: PURPOSE:To correct an image signal read by a CCD sensor with high precision by detecting a defective element of the CCD sensor whose detection has been difficult in the stage of the manufacture and shipment. CONSTITUTION:A gradation original 4 is set to an original platen 2 of a plane input scanner 1 and scanned in the subscanning direction. A transmission light 14 whose incident light quantity is changed continuously is made incident in a CCD line sensor 10 being a check object. An image given by an output signal v1 of each element is printed on a film 32 by an output scanner 31. A defective element is detected by recognizing a stripe image in the image of the film 32. The image of position information representing the arranged position of each element is printed on the film 32 and both image on the film 32 are compared to specify the arranged position of the defective element. Then the image signal of the defective element is corrected by synthesizing both the image signals on the defective element and elements in the vicinity of the defective element.
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公开(公告)号：JPH06341898A
公开(公告)日：1994-12-13
申请号：JP13056893
申请日：1993-06-01
Applicant: SEIKOSHA KK , NIPPON PRECISION CIRCUITS
Inventor： TANAKA SAKAE , KANDA YASUNARI , OGIWARA YOSHIHISA , SHIRAI KATSUO
Abstract: PURPOSE:To provide a circuit for detecting the quantity of light which can reduce the number of parts by utilizing the equivalent capacity which exists in a photosensor itself. CONSTITUTION:When a transistor 52 is turned off, the accumulated electric charge of an equivalent capacity 51a of a photodiode 51 is discharged on the basis of the current in the inverse direction of the photodiode 51. The discharge speed is higher as the quantity of applied light is larger. When a terminal voltage (a) of the photodiode 51 reaches a reference voltage Ref, a pulse (c) is generated from a one-shot multivibrator 54, the transistor 52 is turned on, and then an equivalent capacity 51a is charged, thus enabling the photodiode 51 to repeat charging/discharging operation and the transistor 52 to repeat ON/OFF operation. By counting the number of pulses of the pulse (c) with a counter 55, a count value corresponding to the quantity of received light can be obtained.
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公开(公告)号：JP3675340B2
公开(公告)日：2005-07-27
申请号：JP2001019142
申请日：2001-01-26
Applicant: ヤマハ株式会社
IPC: G11B7/0045 , G01J1/28 , G11B7/125 , G11B19/28
CPC classification number: G11B7/126 , G01J1/28 , G11B7/0045
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公开(公告)号：JPH09264812A
公开(公告)日：1997-10-07
申请号：JP7393696
申请日：1996-03-28
Applicant: TOPPAN PRINTING CO LTD
Inventor： SAITO JUNICHI , SAITO MASAO , MIHASHI MITSUSACHI , SHIBAYAMA TAKAHIRO
Abstract: PROBLEM TO BE SOLVED: To provide a mask, for inspection, which is used to inspect a quality while light is transmitted through a color filter and to provide an inspection method using it. SOLUTION: A mask 10 for inspection of a color filter is a mask which is used to inspect the color filter 20 which is formed on a glass substrate. A region which corresponds to a color-filter nonformation part on the glass substrate on which the color filter 20 is formed is made semitransparent. In an inspection method, for a color filter, using the mask 10 for inspection of the color filter, the color filter 20 which is formed on the glass substrate is covered with the mask 10 for inspection of the color filter, light is transmitted through the color filter 20, the transmitted light is detected by a sensor so as to be converted into an electric signal, and the electric signal is processed by a computer.
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Patent Agency Ranking
公开(公告)号：JPH09105670A
公开(公告)日：1997-04-22
申请号：JP26513895
申请日：1995-10-13
Applicant: NIPPON STEEL CORP
Inventor： YAMAMOTO TAKANORI , MURATA SHIN , ENDO MASAAKI
Abstract: PROBLEM TO BE SOLVED: To eliminate the lack of video or the decrease in responding speed by obtaining the mean luminance from the video collected while retreating a sonde, comparing it with a previously obtained threshold value, and judging the imaged picture from the imaged data at every predetermined interval and a plurality of front and rear frame screen data in response to the difference from the threshold value. SOLUTION: The video recorded at the time of retreating a sonde is rewound, and cokes and droplets are individually registered from the initial image process starting picture according to color registering sequence of a color extractor 4 to the color extraction numbers 1 and 2 of the extractor 4. It is automatically sent to the frame of an object under the VTR control by a CPU 6. When the sonde is inserted to the designated position, a truck is started to be retreated. The video during sonde retreating arrives at a CCD camera 1, and is outputted as video. The coke and droplet are extracted by the color previously registered by the extractor 4. At the time of extracting the coke, the number 1 is given, and at the time of extracting the droplet, the number 2 is given, and white and black binary image is output from the extractor 4. The particle size and number of the extracted cokes, droplets are measured.
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公开(公告)号：JPH08262134A
公开(公告)日：1996-10-11
申请号：JP6453895
申请日：1995-03-23
Applicant: NIKON CORP
Inventor： ISOGAWA SHUICHI
Abstract: PURPOSE: To easily measure the distance to a target in real time by constituting a distance measuring instrument so that the instrument can measure the time until the light receiving quantity of a light receiving element abruptly decreases after laser light is instantaneously turned off. CONSTITUTION: At the time of measuring the distance to a target, a distance measurement starting signal is inputted after a reference mark on the screen of a monitor 4 is moved to the distance measuring position of a distance measuring coordinate system on the monitor 4 by means of a collimating position moving device 10 while the monitor 4 is observed. A monitor control section 11 outputs the coordinate position on the monitor 4 to which the distance measurement starting signal is inputted to a light emitting element control section 12. The control section 12 instantaneously turns off a continuously emitting laser light source 1 at the point of time when the two-dimensional scanning position of an X-Y scanning device 3 coincides with the position on the distance measuring coordinates. A time measuring section 13 measures the time until the reflected light of the laser light from the target is inputted to a light receiving element 6 after the light source 1 is instantaneously turned off. The distance to the target is calculated from the time and displayed on the monitor 4.
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公开(公告)号：JPH03245005A
公开(公告)日：1991-10-31
申请号：JP4096290
申请日：1990-02-23
Applicant: SUMITOMO ELECTRIC INDUSTRIES
Inventor： ISHIGURO YOICHI , INOUE SUSUMU , AIKAWA HARUHIKO
Abstract: PURPOSE:To measure the thickness of a coating film for fiber without contact by projecting luminous flux on the surface of the optical fiber coated with a thin film, and measuring the intensity of the light reflected from the thin film. CONSTITUTION:Emitted light Pi from a light source 10 such as an He-Ne laser is magnified through a lens (1) 11 and a lens (2) 12 and inputted into an optical fiber 24 wherein glass fiber is coated with a pyrolytic carbon film. Then, the image of reflected light Pr from the fiber 24 is formed on a detector 14 through a lens (3) 13. The intensity is detected with an Si photodiode 15 and the like and measured as a voltage fluctuation with a voltmeter 17 through an amplifier 16.
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