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1. 发明公开

EP1055951A3 Optical scanner and image forming apparatus 有权
标题翻译：光学扫描器和图像形成设备
公开(公告)号：EP1055951A3
公开(公告)日：2003-12-17
申请号：EP00111288.7
申请日：2000-05-25
申请人： CANON KABUSHIKI KAISHA
发明人： Toyoda, Koji , Kato, Manabu
IPC分类号： G02B26/12 , G02B27/44 , H04N1/113
CPC分类号： G02B26/12 , H04N1/113
摘要： An optical scanner comprises a light source for emitting a light beam, an optical deflector for deflecting the light beam and a scanning optical system for focusing the deflected light beam on a surface to be scanned. The scanning optical system has a diffracting section and a refracting section and may optionally have a reflector mirror or an optical filter. The illuminance distribution of the light beam is maintained to be substantially uniform on the surface to be scanned by offsetting the changes in the diffraction efficiency of the diffracting section, the transmittance of the refracting section, the reflectance of the reflector mirror and the transmittance of the optical mirror, due to the angle of view of the scanning optical system.

2. 发明公开

EP0964284A3 Scanning optical device and multi-beam scanning optical device 有权
标题翻译：光学扫描装置和多光束扫描光学
公开(公告)号：EP0964284A3
公开(公告)日：2001-10-17
申请号：EP99111441.4
申请日：1999-06-11
申请人： CANON KABUSHIKI KAISHA
发明人： Toyoda, Koji
IPC分类号： G02B26/12 , H04N1/113
CPC分类号： G02B26/125
摘要： A scanning optical device used for a laser beam printer, a digital copying apparatus or the like, includes a light source for emitting light beam, deflector for deflecting light beam emitted from the light source toward a surface to be scanned, and a scanning optical system for forming a spot of the light beam deflected by the deflector on the surface to be scanned. The scanning optical system has a plurality of optical elements. A diffraction optical element is formed on a curved surface of at least one of the plurality of optical elements.

3. 发明授权

EP0964284B1 Scanning optical device and multi-beam scanning optical device 有权
标题翻译：光学扫描装置和多光束扫描光学
公开(公告)号：EP0964284B1
公开(公告)日：2005-03-02
申请号：EP99111441.4
申请日：1999-06-11
申请人： CANON KABUSHIKI KAISHA
发明人： Toyoda, Koji
IPC分类号： G02B26/12 , H04N1/113
CPC分类号： G02B26/125

4. 发明公开

EP0964284A2 Scanning optical device and multi-beam scanning optical device 有权
标题翻译： OptischesAbtastgerätund optischesMehrstrahlabtastgerät
公开(公告)号：EP0964284A2
公开(公告)日：1999-12-15
申请号：EP99111441.4
申请日：1999-06-11
申请人： CANON KABUSHIKI KAISHA
发明人： Toyoda, Koji
IPC分类号： G02B26/12 , H04N1/113
CPC分类号： G02B26/125
摘要： A scanning optical device used for a laser beam printer, a digital copying apparatus or the like, includes a light source for emitting light beam, deflector for deflecting light beam emitted from the light source toward a surface to be scanned, and a scanning optical system for forming a spot of the light beam deflected by the deflector on the surface to be scanned. The scanning optical system has a plurality of optical elements. A diffraction optical element is formed on a curved surface of at least one of the plurality of optical elements.
摘要翻译：用于激光束打印机，数字复印装置等的扫描光学装置包括用于发射光束的光源，用于将从光源发射的光束朝向待扫描的表面偏转的偏转器，以及扫描光学系统用于在待扫描的表面上形成由偏转器偏转的光束的光点。扫描光学系统具有多个光学元件。衍射光学元件形成在多个光学元件中的至少一个的弯曲表面上。

5. 发明授权

EP1055951B1 Optical scanner and image forming apparatus 有权
标题翻译：光学扫描器和图像形成设备
公开(公告)号：EP1055951B1
公开(公告)日：2008-11-19
申请号：EP00111288.7
申请日：2000-05-25
申请人： CANON KABUSHIKI KAISHA
发明人： Toyoda, Koji , Kato, Manabu
IPC分类号： G02B26/12 , G02B27/44 , H04N1/113
CPC分类号： G02B26/12 , H04N1/113

6. 发明公开

EP1055951A2 Optical scanner and image forming apparatus 有权
标题翻译： Optischer Abtaster undBilderzeugungsgerät
公开(公告)号：EP1055951A2
公开(公告)日：2000-11-29
申请号：EP00111288.7
申请日：2000-05-25
申请人： CANON KABUSHIKI KAISHA
发明人： Toyoda, Koji , Kato, Manabu
IPC分类号： G02B26/12 , G02B27/44 , H04N1/113
CPC分类号： G02B26/12 , H04N1/113
摘要： An optical scanner comprises a light source for emitting a light beam, an optical deflector for deflecting the light beam and a scanning optical system for focusing the deflected light beam on a surface to be scanned. The scanning optical system has a diffracting section and a refracting section and may optionally have a reflector mirror or an optical filter. The illuminance distribution of the light beam is maintained to be substantially uniform on the surface to be scanned by offsetting the changes in the diffraction efficiency of the diffracting section, the transmittance of the refracting section, the reflectance of the reflector mirror and the transmittance of the optical mirror, due to the angle of view of the scanning optical system.
摘要翻译：光学扫描器包括用于发射光束的光源，用于偏转光束的光学偏转器和用于将偏转的光束聚焦在待扫描的表面上的扫描光学系统。扫描光学系统具有衍射部分和折射部分，并且可以可选地具有反射镜或滤光器。通过抵消衍射部的衍射效率的变化，折射部的透射率，反射镜的反射率以及反射镜的透射率，光束的照度分布被保持为在待扫描的表面上基本均匀光学镜，由于扫描光学系统的视角。

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