公开(公告)号：US20040223205A1

公开(公告)日：2004-11-11

申请号：US10835893

申请日：2004-04-29

申请人： Canon Kabushiki Kaisha

发明人： Takeshi Aoyama ,  Hyoe Iwata ,  Yukihiro Miura ,  Takehiro Kishi ,  Takayuki Suga

IPC分类号： G02B026/08 ,  G02B005/08

CPC分类号： H04N1/0303 ,  G02B7/1824 ,  H04N1/1017 ,  H04N2201/0242 ,  H04N2201/02433 ,  H04N2201/02441 ,  H04N2201/02447 ,  H04N2201/04796

摘要： In an image reader that adopts an off-axial optical system, an adjustable imaging mirror and a CCD fixed to a highly rigid structure. Since the relative position between reflecting mirrors and imaging mirrors can be set highly accurately, adjusting only the CCD-mounting position allows a required specification of the read image to be met. The imaging mirror can easily be adjusted without distorting the reflecting surface when necessary. The reflecting mirrors, the imaging mirrors, and the CCD-mounting-position adjusting means are positioned directly to reflecting-mirror supporting sections, imaging-mirror supporting sections, and CCD supporting sections, which are integrated with a carriage casing, and fixed to them. The CCD is fixed to the carriage casing with the CCD-mounting-position adjusting means. An imaging mirror close to a diaphragm and adjacent to the image is supported by a mirror adjusting plate. The position of the imaging mirror is adjusted by displacing the mirror adjusting plate.

摘要翻译： 在采用离轴光学系统的图像读取器中，可调整的成像反射镜和固定在高刚性结构上的CCD。 由于可以高精度地设置反射镜和成像反射镜之间的相对位置，所以仅调整CCD安装位置允许满足所读取的图像的所需规格。 成像镜可以在不必要地反射的情况下进行调整。 反射镜，成像镜和CCD安装位置调整装置直接位于反映镜支撑部分，成像镜支撑部分和CCD支撑部分，它们与滑架壳体一体化并且固定到它们 。 CCD通过CCD安装位置调整装置固定在滑架壳体上。 靠近隔膜并与图像相邻的成像镜由镜面调节板支撑。 通过移动镜面调节板来调整成像镜的位置。

公开(公告)号：US20040066544A1

公开(公告)日：2004-04-08

申请号：US10674498

申请日：2003-10-01

申请人： CANON KABUSHIKI KAISHA

发明人： Takayuki Suga ,  Takeshi Aoyama ,  Hyoe Iwata ,  Yukihiro Miura ,  Takehiro Kishi

IPC分类号： H04N001/04 ,  H04N001/46

CPC分类号： H04N1/04 ,  H04N1/00681

摘要： An image reading apparatus accurately determines the positions of image forming mirrors formed with an off-axis reflecting surface, while enabling any thermal expansion caused by a rise in temperature due to a rise in the surrounding temperature to be absorbed. Each image forming mirror formed with an off-axis reflecting surface comprises respective and independent units for determining the positions in the longitudinal direction, in the lateral position, and in the direction orthogonal to the reflecting surface. Holes with which the longitudinal position determining units and the lateral position determining units engage have gaps in the directions orthogonal to the position determining directions to absorb the thermal expansion caused by a rise in the temperature of the image forming mirror when the position determining units engage with the holes. Determination of the position of the reflecting surfaces of the image forming mirrors is carried out by urging urging faces provided on the reflecting surface side against the housing.

摘要翻译： 图像读取装置精确地确定由离轴反射表面形成的图像形成镜的位置，同时能够由于周围温度的上升而被温度升高引起的任何热膨胀被吸收。 形成有离轴反射面的每个成象镜包括用于确定纵向方向，横向位置以及与反射表面正交的方向上的位置的各自独立的单元。 纵向位置确定单元和横向位置确定单元所接合的孔在垂直于位置确定方向的方向上具有间隙，以便当位置确定单元与位置确定单元接合时吸收由图像形成镜的温度升高引起的热膨胀 孔。 图像形成镜的反射面的位置的确定通过将设置在反射面侧的推动面推靠在壳体上而进行。