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公开(公告)号：DE69325337D1
公开(公告)日：1999-07-22
申请号：DE69325337
申请日：1993-11-03
Applicant: CANON KK
Inventor： TABATA MASAMI , KAIHOTSU TAKAHIRO , TANAKA NOBUYOSHI
Abstract: A contact type image sensor comprises: a light source 3 to emit a light with a predetermined inclination angle for the direction of the normal line of the surface of an original at the position of a read line 9 in order to irradiate the light from both sides to the read line by one light source; an original supporting member 6 to support the original in order to lead the light from the light source 3 to the read line 9; and a photoelectric converting device section 5 to receive the light from the original surface. At least a part of the original supporting member 6 locating on the side opposite to the arrangement side of the light source 3 with respect to the read line 9 has a reflecting surface for reflecting a part of the light from the light source 3 and leading to the read line 9.
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公开(公告)号：DE69325337T2
公开(公告)日：1999-11-18
申请号：DE69325337
申请日：1993-11-03
Applicant: CANON KK
Inventor： TABATA MASAMI , KAIHOTSU TAKAHIRO , TANAKA NOBUYOSHI
Abstract: A contact type image sensor comprises: a light source 3 to emit a light with a predetermined inclination angle for the direction of the normal line of the surface of an original at the position of a read line 9 in order to irradiate the light from both sides to the read line by one light source; an original supporting member 6 to support the original in order to lead the light from the light source 3 to the read line 9; and a photoelectric converting device section 5 to receive the light from the original surface. At least a part of the original supporting member 6 locating on the side opposite to the arrangement side of the light source 3 with respect to the read line 9 has a reflecting surface for reflecting a part of the light from the light source 3 and leading to the read line 9.
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公开(公告)号：DE69422595D1
公开(公告)日：2000-02-17
申请号：DE69422595
申请日：1994-10-12
Applicant: CANON KK
Inventor： TABATA MASAMI
Abstract: A contactless image sensor comprises a light source (1,2) for irradiating the light onto an original, photoelectric converting elements for photoelectrically converting the light from the original (4), an image pickup device (7) for guiding the light from the original to the photoelectric converting elements (9), and a frame body (10) for holding them. The frame body includes a light transmitting portion (6) and a light non-transmitting portion and they are integrally pressing-out molded by plastics. Namely, the optical path portion (6) and the optical guide (3) of the frame body are made of transparent plastics and the other portions of the frame body are made of colored plastics having a light shielding performance.
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公开(公告)号：DE69832668T2
公开(公告)日：2006-07-20
申请号：DE69832668
申请日：1998-06-19
Applicant: CANON KK
Inventor： NAGATA KENJI , KAWAI TATSUNDO , TABATA MASAMI
Abstract: A rod lens array, used in an image sensor, is configured by sandwiching a plurality of rod lenses with two side plates. Among the two side plates, the one which is on the side of the illumination device is made thinner than the other side plate.
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公开(公告)号：DE69324762T2
公开(公告)日：1999-10-21
申请号：DE69324762
申请日：1993-10-29
Applicant: CANON KK
Inventor： KAIHOTSU TAKAHIRO , TABATA MASAMI , TANAKA NOBUYOSHI
Abstract: This specification discloses a lens array having a lens element body comprising a plurality of lens elements arranged, and an overlap limiting member provided between the lens elements of the lens element body for limiting the overlap of images by the plurality of lens elements. The specification also discloses a close contact type image sensor which uses the lens array as an optical element array for directing reflected light from an original and which has a transparent member for supporting the original, a light source for illuminating the original, and a sensor array for photoelectrically converting the image of the original.
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Patent Agency Ranking
公开(公告)号：DE69832668D1
公开(公告)日：2006-01-12
申请号：DE69832668
申请日：1998-06-19
Applicant: CANON KK
Inventor： NAGATA KENJI , KAWAI TATSUNDO , TABATA MASAMI
Abstract: A rod lens array, used in an image sensor, is configured by sandwiching a plurality of rod lenses with two side plates. Among the two side plates, the one which is on the side of the illumination device is made thinner than the other side plate.
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公开(公告)号：DE69422595T2
公开(公告)日：2000-06-08
申请号：DE69422595
申请日：1994-10-12
Applicant: CANON KK
Inventor： TABATA MASAMI
Abstract: A contactless image sensor comprises a light source (1,2) for irradiating the light onto an original, photoelectric converting elements for photoelectrically converting the light from the original (4), an image pickup device (7) for guiding the light from the original to the photoelectric converting elements (9), and a frame body (10) for holding them. The frame body includes a light transmitting portion (6) and a light non-transmitting portion and they are integrally pressing-out molded by plastics. Namely, the optical path portion (6) and the optical guide (3) of the frame body are made of transparent plastics and the other portions of the frame body are made of colored plastics having a light shielding performance.
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公开(公告)号：DE69324762D1
公开(公告)日：1999-06-10
申请号：DE69324762
申请日：1993-10-29
Applicant: CANON KK
Inventor： KAIHOTSU TAKAHIRO , TABATA MASAMI , TANAKA NOBUYOSHI
Abstract: This specification discloses a lens array having a lens element body comprising a plurality of lens elements arranged, and an overlap limiting member provided between the lens elements of the lens element body for limiting the overlap of images by the plurality of lens elements. The specification also discloses a close contact type image sensor which uses the lens array as an optical element array for directing reflected light from an original and which has a transparent member for supporting the original, a light source for illuminating the original, and a sensor array for photoelectrically converting the image of the original.
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公开(公告)号：JPH10304155A
公开(公告)日：1998-11-13
申请号：JP10927297
申请日：1997-04-25
Applicant: CANON KK
Inventor： OGURA MAKOTO , NAGATA KENJI , SAITOU KIMIMORI , TABATA MASAMI , KAWAI TATSUTO , ITABASHI SATORU
Abstract: PROBLEM TO BE SOLVED: To improve the mount accuracy of each member such as a sensor array member and an image forming element by pressing a light guide light source onto a base so as to support the light guide with the base. SOLUTION: A projection 8 is provided to a side of a sensor array base of a light guide member 4. The projection 8 is pressed into contact with the sensor array base 2 to support the light guide member 4. Furthermore, a light emission part 4a of the light guide member 4 is configured to be a lens that collects lights and part of the part 4a is pressed into contact with the sensor array base 2 to support the light guide member 4. The light guide member 4 is fixed by being clamped with a frame 6 and the sensor array base 2. Since a light source 7 is mounted on the base having the photoelectric conversion element in this way not via any frame, the layout of the light source 7 and the photoelectric conversion element is independent of any frame so as to enhance the accuracy of the layout of the light source 7 and the photoelectric conversion element. Thus, the image reader is made small in size.
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公开(公告)号：JPH10133026A
公开(公告)日：1998-05-22
申请号：JP28973996
申请日：1996-10-31
Applicant: CANON KK
Inventor： KAWAI TATSUTO , TABATA MASAMI
Abstract: PROBLEM TO BE SOLVED: To uniformly illuminate an irrastrated face with light by forming an area for the reflection/diffusion of a conductor like saw teeth so that teeth are arranged in the longitudinal direction of the rod-like conductor and forming these teeth so that the width of teeth is narrowed in the vicinity of a light source and extended in accordance with separation from the light source. SOLUTION: An area 5 for reflecting/scattering a beam propagated through the inside of the conductor 3 and extracting the beam to the outside of the conductor 3 is constituted so as to form a fine saw tooth-like tooth string on one side face along the longitudinal direction of the conductor 3. The width of the area 5 is set so as to be narrowed in the vicinity of an incident face and extended on a center part separated from any incident face. Since the incident rate of a beam propagated through the inside of the conductor 3 upon the area 5 is reduced on near side of the incident face and increased on the far side, the non-uniformity of illuminance in the longitudinal direction of the conductor 3 is effectively improved.
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