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1. 发明专利

JPH05223753A INSPECTION DEVICE FOR LIGHT DIFFUSION BODY 失效
公开(公告)号：JPH05223753A
公开(公告)日：1993-08-31
申请号：JP5894992
申请日：1992-02-12
申请人： MITSUBISHI RAYON CO
发明人： SAITO NORIAKI , TODA MASATOSHI , TASHIRO SHINTARO , IKEDA TOKUYUKI , SHIBUYA YUKIO
IPC分类号： G01B11/00 , G01B11/30 , G01N21/88 , G01N21/89 , G01N21/892 , G01N21/952
摘要： PURPOSE:To obtain an inspection device capable of exactly detecting the boundary position of each material of light diffusion body with low light penetration rate which constituted of a plurality of materials with different light penetration rate. CONSTITUTION:A filter 1 consists of a fiber bundle 1a with the length of 10mm including activated charcoal and a fiber bundle 1b with the length of 15mm without including active charcoal and the total length is 25mm. Every four bundles (100mm) is cut and inspected. An image processing device 7 digitizes the image signal for a relatively high threshold 21 to detect the total length of the filter 1. By detecting both ends of the fiber bundle 1b, the middle points 01, 02 are obtained. From the middle points 01, 02 of the fiber bundle 1b and the known length and the known length of the central fiber 1a and the above total length, the boundary of the fiber bundle 1a cut at both ends is obtained.

2. 发明专利

JPH05203588A INSPECTING DEVICE OF LIGHT DIFFUSION BODY 失效
公开(公告)号：JPH05203588A
公开(公告)日：1993-08-10
申请号：JP3871992
申请日：1992-01-29
申请人： MITSUBISHI RAYON CO
发明人： SAITO NORIAKI , TODA MASATOSHI , TASHIRO SHINTARO , IKEDA TOKUYUKI , SHIBUYA YUKIO
IPC分类号： G01N21/88 , G01B11/02 , G01B21/02 , G01N21/89 , G01N21/892 , G01N21/894
摘要： PURPOSE:To obtain an inspection device of a light diffusion body which can properly inspect the light diffusion body which is constituted of materials with different light transmissions in longer shape, has a low transmission as a whole, and has a large amount of defective transmission light. CONSTITUTION:A cigarette filter 1 is carried, one at a time, in radius direction by a drum 2 and a slit 2a which is smaller than the width of the filter 1 and is longer than the filter 1 is formed at the drum 2. An end face 3a of a light guide 3 is laid out in line shape at the inspection position of the filter 1 so that the filter 1 is irradiated through the slit 2a. A line CCD camera 5 is laid out at a light path of transmission light of the filter 1. An image processing device 7 performs binary coding of an image signal by a threshold 21 which is relatively high for detecting an entire length and a space 1c and performs binary coding according to a relatively low threshold 22 to inspect whether each length of two bundles of fibers 1a and 1b is proper or not and whether two bundles of fibers 1a and 1b are arranged alternately or not.

3. 发明专利

JPH03237343A INSPECTION DEVICE FOR TAPERED SURFACE IN CYLINDRICAL BODY 失效
公开(公告)号：JPH03237343A
公开(公告)日：1991-10-23
申请号：JP3319990
申请日：1990-02-14
申请人： MITSUBISHI RAYON CO
发明人： SAITO NORIAKI , FUSE MASAKI , SHIBUYA YUKIO , TAKAHASHI TETSUO , KAMIYAMA SHINICHI
IPC分类号： G01B11/30 , G01N21/88 , H04N7/18
摘要： PURPOSE:To inspect at which position on the tapered surface of the cylinder body a defect is generated by lighting the cylinder body downward from one side of the cylinder body and reflecting its illumination light at right angles to the tapered surface. CONSTITUTION:A downward lighting device 4 lights the cylinder body 5 to be inspected from one opening and a reflecting member 6 which has a reflecting surface for reflecting the illumination light at right angles to the tapered surface is inserted from the other opening of the cylinder body 5. Consequently, the incident light from the downward lighting device is reflected by the tapered surface when the tapered surface has no defect and is specular, and then returned by the reflecting surface of the reflecting member 6 to the same position on the tapered surface to travel backward in the original incidence direction. If there is a defect in the tapered surface, on the other hand, the incident light is not reflected by the tapered surface, so the quantity of the reflected light decreases. The position of the defect in the tapered surface can be decided.

4. 发明专利

JPH03104480A IMAGE ENCODER CIRCUIT 失效
公开(公告)号：JPH03104480A
公开(公告)日：1991-05-01
申请号：JP24277989
申请日：1989-09-19
申请人： MITSUBISHI RAYON CO
发明人： KIMURA HIROAKI , FUSE MASAKI , TODA MASATOSHI , SHIBUYA YUKIO
IPC分类号： H04N1/41 , H04N1/415
摘要： PURPOSE:To convert binary image information to position information easy to perform following feature extraction without generating information loss by outputting paragraph identification data capable of performing the identification of at least adjacent lines or a divisional part and paragraph identification with the same format as that of position data of the start point picture element and/or end point picture element of a significant picture element at the paragraph position of a line or the divisional part. CONSTITUTION:Edges i.e. the start point and the end point of a continuous significant picture element are extracted from the binarized image data of binary data NRID0 from which a notch is eliminated and data NRID1 delayed by one picture element at an edge extraction circuit 5. When the edge of the final picture element is extracted, a signal LEND representing line completion is issued from a timing control circuit 1, and after a processing is completed, a coordinate counter 4 is counted up by one, and two write signals WE1 and WE2 are generated similarly as in the extraction of the significant picture element. The (paragraph identification data) capable of performing the identification of the adjacent lines with the same format as that of the position data of the start point picture element and the end point picture element of the significant picture element i.e., data in which one is added in all picture elements is written on start point and end point buffer memories 2 as the same value by the two write signals.

5. 发明专利

JPH0221781A OPTICAL INSPECTION DEVICE 失效
公开(公告)号：JPH0221781A
公开(公告)日：1990-01-24
申请号：JP17099288
申请日：1988-07-11
申请人： MITSUBISHI RAYON CO
发明人： ICHIMURA KIYOSHI , SHIBUYA YUKIO , YASUHARA KOZO , SHINOMURA MASAYUKI
IPC分类号： G01N21/84 , G02B6/00 , G02B6/06 , G02B21/06 , G02B21/36 , H04N5/225
摘要： PURPOSE:To attain excellent handling, to improve the contrast of ruggedness of an object to be inspected and to facilitate the check by providing a tilt angle to an optical axis of a light radiation section of a conductive cylinder with respect to an axis of the cylinder. CONSTITUTION:A head part is provided with a solid-state image pickup element, its driver circuit 21, a head case 23 incorporating an optical fiber bundle 22 whose ends are made cylindrical, a lens 24 and a lens cylinder 25 fixing the distance between the solid-state image pickup element and the driver circuit 21 to an optimum value. Moreover, a cylindrical light guide 26 leading the radiated light from the optical fiber and radiating the light along the surface of an object to be checked. The radiated light 41 from the optical fiber 22 is made incident to the cylindrical light guide 26, and reaches the object 27 to be checked while being reflected in the border between air and the light guide body. Since the tip of the light guide body is constituted while being curved with a smooth curvature and while its light radiation end is made nearly horizontal, the light is radiated from the tip 42 of the light guide 26 along the object to be checked without causing a large luminous quantity loss. Thus, the surface contrast is improved and up to minute ruggedness of the object to be checked is observed.

6. 发明专利

JPH0617927B2 失效
公开(公告)号：JPH0617927B2
公开(公告)日：1994-03-09
申请号：JP10677988
申请日：1988-04-28
申请人： MITSUBISHI RAYON CO
发明人： ICHIMURA KYOSHI , FUSE MASAKI , SHIBUYA YUKIO
IPC分类号： F21V8/00 , G02B6/04 , G02B6/42

7. 发明专利

JPH0417473A FOCUSING DEVICE FOR PICTURE INPUT CAMERA 失效
公开(公告)号：JPH0417473A
公开(公告)日：1992-01-22
申请号：JP12220490
申请日：1990-05-11
申请人： MITSUBISHI RAYON CO
发明人： SAITO NORIAKI , FUSE MASAKI , TODA MASATOSHI , SHIBUYA YUKIO , TAKAHASHI TETSUO
IPC分类号： G01C3/06 , G02B7/28 , G03B13/36 , H04N5/232
摘要： PURPOSE:To simplify focusing by obtaining a focus level at each focal position, displaying a focus level graphically at a prescribed magnification scale onto a display device and displaying a focus level on the graph. CONSTITUTION:A picture input camera 4 picks up an object 1 as a picture input and gives the picture input signal to a processing circuit 5. The processing circuit 5 totalizes the picture signals when outputs of adjacent sensors are a prescribed output level and obtains the result as a focus level and obtains the largest focus level having been obtained so far as a just focus level. The processing circuit 5 gives the obtained focus level and the just focus level to a display device 6. The display device 6 displays the focus levels obtained by the processing circuit 5 as a bar graph or a circle graph or the like with a prescribed magnification scale and displays the just focus level on the graph.

8. 发明专利

JPH03197802A LABEL SHIFT INSPECTION INSTRUMENT 失效
公开(公告)号：JPH03197802A
公开(公告)日：1991-08-29
申请号：JP33689489
申请日：1989-12-26
申请人： MITSUBISHI RAYON CO
发明人： FUSE MASAKI , SAITO NORIAKI , SHIBUYA YUKIO
IPC分类号： G01B11/00 , B65C9/40 , G01B11/26
摘要： PURPOSE:To detect a label shift without reference to the color of the label by calculating a label position and an angle deviation from differences of edge coordinates, and comparing the calculated values with setting reference values of the position of the label and deciding whether or not the label shifts. CONSTITUTION:When a body 13 to be inspected where the label 14 is stuck comes to an inspection position, an inspection start signal is inputted to an image processor 7 with a photoelectric switch 12. Then when the inspection start signal is inputted, an image of the body to be inspected is read by an area type CCD camera 10 and inputted as image data, which is inputted to the image memory of the processor 7. Then the image data which is inputted to the image memory is converted into binary data by using a previously specified threshold value and displayed on a monitor CRT 11. Then the edge of the image data on the image memory is detected in a previously set window and the position shift and angle deviation of the label are measured; when the measured values deviate from the inspection reference, an NG signal is outputted.

9. 发明专利

JPH0373831A DEVICE FOR INSPECTING DEFECT 失效
公开(公告)号：JPH0373831A
公开(公告)日：1991-03-28
申请号：JP2030590
申请日：1990-01-30
申请人： MITSUBISHI RAYON CO
发明人： KIMURA HIROAKI , FUSE MASAKI , TODA MASATOSHI , SHIBUYA YUKIO
IPC分类号： G01N21/88 , G01N21/94 , H04N7/18
摘要： PURPOSE:To easily detect and sort fine ruggedness or dirt on a magnetic face by setting up the focus position of an image input device on the forward or backward position of the surface of an object to be inspected. CONSTITUTION:When a floppy disk e.g. is the object 1 to be inspected, its magnetic face is rotated and the inspecting position S of the object 1 is light up by a lighting device 2. The positive reflected light from the inspecting posi tion S is photodetected through the lens system 3 of a line CCD camera 4 to be the image input device. Since the CCD camera 4 sets up the focus position on the forward position f or a backward position f' of the surface of the object 1 by changing the focus of the lens system 3 to detect the rugged defect. When the focus position of the CCD camera 4 is set up on the surface f0 of the object 1, dirt is detected.

10. 发明专利

JPH01277206A LIGHT RECEIVING BODY FOR OPTICAL FIBER TYPE LIGHT GUIDE AND LIGHT SOURCE OPTICAL SYSTEM INCLUDING THIS BODY 失效
公开(公告)号：JPH01277206A
公开(公告)日：1989-11-07
申请号：JP10677988
申请日：1988-04-28
申请人： MITSUBISHI RAYON CO
发明人： ICHIMURA KIYOSHI , FUSE MASAKI , SHIBUYA YUKIO
IPC分类号： F21V8/00 , G02B6/04 , G02B6/42
摘要： PURPOSE:To uniformize and average the quantity of emitted light furthermore by providing a second optical transmission part whose one end is connected to the other end of a first optical transmission part and the other end receives the light from a prescribed light source and providing the second optical transmission part with many optical fibers extended from the incidence plane to the exit face and setting their positional relations between the incidence plane and the exit plane at random. CONSTITUTION:One end of the second optical transmission part 61 is the open end and receives the light from a light source 10. When the light from the light source 10 is projected to this open end, the incident light is transmitted to the exit plane through plural optical fibers 61A. Since positional relations of plural optical fibers 61A in the second optical transmission part 61 between the incidence plane and the exit plane are set at random, the dispersion of the intensity of light on the incidence plane is random and light and darkness are uniformly distributed throughout the exit plane. Though the distribution of the quantity of light is not uniform in this state, it is uniformized by incidence on the first optical transmission part 31, and the uniformized light is projected to a light guide 50 connected to the exit plane of the first optical transmission part 31.

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