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1. 发明授权

US6072176A Laser beam optical scanning device and image forming apparatus with laser beam optical scanning device 失效
标题翻译：激光束光学扫描装置和具有激光束光学扫描装置的成像装置
公开(公告)号：US6072176A
公开(公告)日：2000-06-06
申请号：US52032
申请日：1998-03-31
申请人： Jun Kohsaka , Nobuo Kanai
发明人： Jun Kohsaka , Nobuo Kanai
IPC分类号： B41J2/44 , B41J2/47 , G02B26/10 , G02B26/12 , H04N1/113 , H01J3/14
CPC分类号： B41J2/471 , G02B26/128
摘要： A laser beam optical scanning device which focuses and scans a laser beam emitted from laser diode 1 in the arrow b direction on a photosensitive drum 40 via focusing lens 3, polygonal mirror 6, and f.theta. lens 7. The scanning laser beam enters a convergence state detector 10, which detects the amount of dislocation of the convergence position. The amount of positional change is calculated to correct the convergence position based on the detected amount of dislocation, and the focusing lens 3 is moved on the optical axis of the lens via motor 21 to correct the beam convergence position. When processing is executed to correct the convergence position in the intermediate zone of the image formign range and the calculated amount of positional change exceeds a limit value, a detection error is assumed, and the focusing lens 3 is moved an amount less than the limit value.
摘要翻译：一种激光束光学扫描装置，其通过聚焦透镜3，多面镜6和fθ透镜7在激光二极管1上沿箭头b方向发射的激光束在感光鼓40上聚焦和扫描。扫描激光束进入会聚状态检测器10，其检测会聚位置的位错量。计算位置变化量，根据检测到的位错量来校正收敛位置，聚焦透镜3通过电动机21在透镜的光轴上移动，以校正光束会聚位置。当执行处理以校正图像形成范围的中间区域中的会聚位置并且计算出的位置变化量超过极限值时，假设检测误差，并且聚焦透镜3移动小于极限值。

2. 发明授权

US5179462A Laser beam composite apparatus 失效
标题翻译：激光束复合装置
公开(公告)号：US5179462A
公开(公告)日：1993-01-12
申请号：US896756
申请日：1992-06-10
申请人： Hitoshi Kageyama , Nobuo Kanai
发明人： Hitoshi Kageyama , Nobuo Kanai
IPC分类号： G02B26/10 , G02B26/12 , G02B27/10 , G02B27/14 , G02B27/28 , H04N1/50
CPC分类号： G02B27/145 , G02B26/123 , G02B27/1006 , G02B27/283 , H04N1/506
摘要： A laser beam composite apparatus which combines more than three beams including a first beam having a first wavelength, a second beam having a second wavelength and polarized in a predetermined direction and a third beam having a second wavelength and polarized in a direction perpendicular to said polarized direction of said second beam. The laser beam composite apparatus combines the first beam and the second beam based on difference of wavelengths thereof and further combines the third beam based on difference of polarized directions thereof.
摘要翻译：一种激光束复合装置，其组合多于三束的光束，包括具有第一波长的第一光束，具有第二波长的第二光束和沿预定方向偏振的第二光束，以及具有第二波长并在垂直于所述偏振光的方向上极化的第三光束所述第二光束的方向。激光束复合设备基于其波长差合成第一光束和第二光束，并且基于其偏振方向的差异进一步组合第三光束。

3. 发明授权

US6157478A Multibeam scanning optical apparatus and laser light source apparatus 失效
标题翻译：多光束扫描光学装置和激光光源装置
公开(公告)号：US6157478A
公开(公告)日：2000-12-05
申请号：US773644
申请日：1996-12-24
申请人： Toshio Naiki , Nobuo Kanai , Jun Kohsaka , Kenji Takeshita
发明人： Toshio Naiki , Nobuo Kanai , Jun Kohsaka , Kenji Takeshita
IPC分类号： B41J2/44 , G02B19/00 , G02B26/10 , G02B26/12 , G02B26/08
CPC分类号： G02B26/123 , B41J2/473
摘要： In a multibeam scanning optical apparatus of a type where two parallel lines are simultaneously scanned by two laser beams irradiated from two semiconductor lasers, stable images are formed on the scanned surface by the two laser beams and the cost is reduced. The two laser beams irradiated from the two semiconductor lasers are directed substantially in the same direction through a beam splitter and then shaped by a condenser lens into two luminous fluxes whose optical axes are substantially parallel to each other. In another arrangement, the semiconductor lasers are directly secured to a surface of the beam splitter by use of an ultraviolet setting resin.
摘要翻译：在通过从两个半导体激光器照射的两个激光束同时扫描两条平行线的多光束扫描光学装置中，通过两个激光束在扫描表面上形成稳定的图像，并降低成本。从两个半导体激光器照射的两个激光束通过分束器基本上指向相同的方向，然后通过聚光透镜成形为两个光束，其光轴基本上彼此平行。在另一种布置中，半导体激光器通过使用紫外线固化树脂直接固定到分束器的表面。

4. 发明授权

US6118570A Laser beam scanning optical apparatus 失效
标题翻译：激光束扫描光学仪器
公开(公告)号：US6118570A
公开(公告)日：2000-09-12
申请号：US898615
申请日：1997-07-22
申请人： Nobuo Kanai , Jun Kohsaka , Hiroshi Hiraguchi
发明人： Nobuo Kanai , Jun Kohsaka , Hiroshi Hiraguchi
IPC分类号： B41J2/44 , G02B13/24 , G02B26/10 , G02B26/12 , G02B26/08
CPC分类号： G02B26/128
摘要： A laser beam scanning optical apparatus has a focusing lens having different optical powers in the main scanning direction and the sub-scanning direction, moving means for moving the focusing lens on an optical direction, detecting means for detecting a state of convergence of the laser beam on a scanned surface, and control means for adjusting the convergence position of the laser beam by moving the focusing lens via driving said moving means based on the detection result of the detection means. In the aforementioned construction, the state of the convergence of the laser beam on a scanned surface is adjusted in the main scanning direction and the sub-scan direction by moving the focusing lens in an optical axis. The focusing lens is moved to a position of optimum convergence based on the construction of the optical system by detecting the state of convergence in the main scan direction and the sub-scan direction via a detecting means.
摘要翻译：激光束扫描光学装置具有在主扫描方向和副扫描方向上具有不同光焦度的聚焦透镜，用于在光学方向上移动聚焦透镜的移动装置，用于检测激光束的会聚状态的检测装置以及控制装置，用于根据检测装置的检测结果，通过驱动所述移动装置移动聚焦透镜来调节激光束的会聚位置。在上述结构中，通过沿着光轴移动聚焦透镜，在主扫描方向和副扫描方向上调整激光束在扫描面上的会聚状态。通过检测主扫描方向和副扫描方向的会聚状态，聚焦透镜基于光学系统的结构移动到最佳会聚位置。

5. 发明授权

US6097421A Scanning optical system 失效
标题翻译：扫描光学系统
公开(公告)号：US6097421A
公开(公告)日：2000-08-01
申请号：US740870
申请日：1996-11-04
申请人： Kenji Takeshita , Nobuo Kanai
发明人： Kenji Takeshita , Nobuo Kanai
IPC分类号： G02B13/00 , G02B13/08 , G02B13/18 , G02B26/12
CPC分类号： G02B26/125
摘要： In a scanning optical system in which image-surface curvature in the traverse direction is corrected properly without degrading imaging performance in the scanning direction and in which the transverse magnification is approximately uniform irrespective of the deflection angle, the influence of form errors in the imaging lens upon the image is substantially suppressed so as not to degrade the quality of the image. The scanning optical system is provided with a aspherical lens having a refractive power only in the traverse direction and having a TSL shape whose curvature radius increases as the distance in the scanning direction from the center of the lens (the position in which the curvature radius in the traverse direction is smallest) increases. The aspherical lens is disposed in such a way that the line of symmetry that passes through its center is parallel to and at a distance from the optical axis of a first lens unit on the upstream side of a scanning path in the scanning direction. The traverse magnification of the scanning optical system is set at a value in a predetermined range.
摘要翻译：在扫描光学系统中，其横向方向上的图像表面曲率被正确地校正，而不会降低扫描方向上的成像性能，并且横向倍率与偏转角无关地大致均匀，所以成像透镜中的形状误差的影响基本上抑制了图像，从而不会降低图像的质量。扫描光学系统具有仅在横动方向上具有屈光力的非球面透镜，并且具有曲率半径随着从透镜中心的扫描方向的距离而增加的TSL形状（曲率半径的位置横动方向最小）增加。非球面透镜被设置成使得通过其中心的对称线在扫描方向上的扫描路径的上游侧与第一透镜单元的光轴平行且距离一定距离。扫描光学系统的横越倍率被设定在预定范围内的值。

6. 发明授权

US5969346A Laser beam scanning optical apparatus 失效
标题翻译：激光束扫描光学仪器
公开(公告)号：US5969346A
公开(公告)日：1999-10-19
申请号：US887460
申请日：1997-07-02
申请人： Yasushi Nagasaka , Kenji Takeshita , Hiroshi Hiraguchi , Jun Kohsaka , Nobuo Kanai , Keiji Ogoh
发明人： Yasushi Nagasaka , Kenji Takeshita , Hiroshi Hiraguchi , Jun Kohsaka , Nobuo Kanai , Keiji Ogoh
IPC分类号： G02B26/12 , H01J3/14 , G01J1/20 , G02B26/08
CPC分类号： G02B26/128
摘要： A laser beam scanning optical apparatus which images and scans a laser beam emitted from a laser diode on a photo-sensitive drum through a focusing lens, a polygon mirror and an f.theta. lens. An SOS photosensor detects the scanned laser beam and generates a detection signal. The laser diode is controlled to perform pulse emission a specified time after the generation of the detection signal. The pulse beam is incident to a beam detector which adopts a knife edge method, and the amount of a focal shift is detected. The focusing lens is moved along the optical axis in accordance with the detected amount of a focal shift to correct the position of the image point.
摘要翻译：一种激光束扫描光学装置，其通过聚焦透镜，多面镜和fθ透镜对从感光鼓上的激光二极管发射的激光束进行成像和扫描。 SOS光电传感器检测扫描的激光束并产生检测信号。控制激光二极管在产生检测信号之后的指定时间内执行脉冲发射。脉冲光束入射到采用刀刃法的光束检测器，并检测焦点偏移量。根据检测到的焦点偏移量，聚焦透镜沿着光轴移动以校正图像点的位置。

7. 发明授权

US5808775A Laser beam scanning optical apparatus 失效
标题翻译：激光束扫描光学仪器
公开(公告)号：US5808775A
公开(公告)日：1998-09-15
申请号：US814217
申请日：1997-03-11
申请人： Yoshihiro Inagaki , Nobuo Kanai , Jun Kohsaka , Kenji Takeshita , Keiji Ogoh , Hidenari Tachibe
发明人： Yoshihiro Inagaki , Nobuo Kanai , Jun Kohsaka , Kenji Takeshita , Keiji Ogoh , Hidenari Tachibe
IPC分类号： B41J2/44 , G02B13/00 , G02B13/18 , G02B26/10 , G02B26/12 , G02B26/08
CPC分类号： G02B26/124
摘要： A laser beam scanning optical apparatus which has a laser source unit, a collimator lens, a cylindrical lens, a polygon mirror and a scanning lens with an f.theta. function. The collimator lens is a bifocal lens, and because of the bifocal collimator lens, a part of the laser beam is focused on a point before the surface of a photosensitive member, and another part of the laser beam is focused on a point after the surface of the photosensitive member. Also, the cylindrical lens can be a bifocal lens. In this case, even when the magnification ratio in the sub scanning direction is designed small, the focal length of the cylindrical lens does not have to be lengthened.
摘要翻译：一种具有激光源单元，准直透镜，柱面透镜，多面镜和具有fθ函数的扫描透镜的激光束扫描光学装置。准直透镜是双焦点透镜，并且由于双焦点准直透镜，激光束的一部分聚焦在感光构件表面之前的点，并且激光束的另一部分聚焦在表面之后的点的光敏元件。此外，柱面透镜可以是双焦点透镜。在这种情况下，即使将副扫描方向的倍率设计得较小，也不必延长柱面透镜的焦距。

8. 发明授权

US5561743A Digital method image forming apparatus and image forming method thereof 失效
标题翻译：数字方法图像形成装置及其图像形成方法
公开(公告)号：US5561743A
公开(公告)日：1996-10-01
申请号：US486599
申请日：1995-06-07
申请人： Nobuo Kanai , Hitoshi Kageyama , Kenji Takeshita
发明人： Nobuo Kanai , Hitoshi Kageyama , Kenji Takeshita
IPC分类号： G02B26/12 , H04N1/053 , H04N1/113 , H04N1/12 , H04N1/40 , H04N1/23
CPC分类号： H04N1/4005 , G02B26/126 , H04N1/053 , H04N1/40037 , H04N1/1135 , H04N1/12 , H04N2201/0471 , H04N2201/04787
摘要： A copying machine for forming an image by scanning a laser beam which is emitted from an optical system on a photosensitive member. Photosensors are provided at optically equivalent positions to a beginning portion and an end portion of a scanning line on a photosensitive member. A scanning time of a laser beam in the main scanning direction is measured by these photosensors. The measured time and a standard time for a copy magnification set by an operator are compared, and a correction value is calculated, and at the same time, magnification in the main scanning direction is corrected using the correcting value. Also, focusing (adjusting of the beam diameter) is carried out using the photosensors. Each of the photosensors contains a photoelectric transfer element, and a beam which comes through a slit is incident to the element. Each photosensor is provided with two slits. One is perpendicular to the main scanning direction, and the other is inclined to the main scanning direction. The beam diameter in the main scanning direction is adjusted based on detection of the beam which comes through the slit which is perpendicular to the main scanning direction. The beam diameter in the sub scanning direction is adjusted based on detection of the beam which comes through the slit inclined to the main scanning direction.
摘要翻译：一种用于通过扫描从光学系统在感光构件上发射的激光束来形成图像的复印机。感光体设置在与光敏部件上的扫描线的起始部分和端部的光学等效位置上。通过这些光电传感器测量激光束在主扫描方向上的扫描时间。将测量时间和由操作者设置的复印倍率的标准时间进行比较，并且计算校正值，并且同时使用校正值来校正主扫描方向上的倍率。此外，使用光电传感器进行聚焦（光束直径的调节）。每个光电传感器包含光电转移元件，并且通过狭缝进入的光束入射到元件。每个光电传感器都有两个狭缝。一个垂直于主扫描方向，另一个与主扫描方向倾斜。基于垂直于主扫描方向的狭缝的光束的检测来调整主扫描方向的光束直径。基于沿与主扫描方向倾斜的狭缝的光束的检测来调整副扫描方向上的光束直径。

9. 发明授权

US5450211A Image forming apparatus and method for maintaining set magnification not withstanding changes in optical system due to temperature change 失效
标题翻译：用于保持放大倍数的图像形成装置和方法不受温度变化导致的光学系统的变化
公开(公告)号：US5450211A
公开(公告)日：1995-09-12
申请号：US265658
申请日：1994-06-24
申请人： Nobuo Kanai , Hitoshi Kageyama , Kenji Takeshita
发明人： Nobuo Kanai , Hitoshi Kageyama , Kenji Takeshita
IPC分类号： G02B26/12 , H04N1/053 , H04N1/113 , H04N1/12 , H04N1/40 , H04N1/036 , H04N1/04 , H04N1/393
CPC分类号： H04N1/4005 , G02B26/126 , H04N1/053 , H04N1/40037 , H04N1/1135 , H04N1/12 , H04N2201/0471 , H04N2201/04787
摘要： A copying machine for forming an image by scanning a laser beam which is emitted from an optical system on a photosensitive member. Photosensors are provided at optically equivalent positions to a beginning portion and an end portion of a scanning line on a photosensitive member. A scanning time of a laser beam in the main scanning direction is measured by these photosensors. The measured time and a standard time for a copy magnification set by an operator are compared, and a correction value is calculated, and at the same time, magnification in the main scanning direction is corrected using the correcting value. Also, focusing (adjusting of the beam diameter) is carried out using the photosensors. Each of the photosensors contains a photoelectric transfer element, and a beam which comes through a slit is incident to the element. Each photosensor is provided with two slits. One is perpendicular to the main scanning direction, and the other is inclined to the main scanning direction. The beam diameter in the main scanning direction is adjusted based on detection of the beam which comes through the slit which is perpendicular to the main scanning direction. The beam diameter in the sub scanning direction is adjusted based on detection of the beam which comes through the slit inclined to the main scanning direction.
摘要翻译：一种用于通过扫描从光学系统在感光构件上发射的激光束来形成图像的复印机。感光体设置在与光敏部件上的扫描线的起始部分和端部的光学等效位置上。通过这些光电传感器测量激光束在主扫描方向上的扫描时间。将测量时间和由操作者设置的复印倍率的标准时间进行比较，并且计算校正值，并且同时使用校正值来校正主扫描方向上的倍率。此外，使用光电传感器进行聚焦（光束直径的调节）。每个光电传感器包含光电转移元件，并且通过狭缝进入的光束入射到元件。每个光电传感器都有两个狭缝。一个垂直于主扫描方向，另一个与主扫描方向倾斜。基于垂直于主扫描方向的狭缝的光束的检测来调整主扫描方向上的光束直径。基于沿与主扫描方向倾斜的狭缝的光束的检测来调整副扫描方向上的光束直径。

10. 发明授权

US5260831A Anamorphic illuminating optical system 失效
标题翻译：变形照明光学系统
公开(公告)号：US5260831A
公开(公告)日：1993-11-09
申请号：US986278
申请日：1992-12-07
申请人： Sanae Suzuki , Nobuo Kanai
发明人： Sanae Suzuki , Nobuo Kanai
IPC分类号： G02B13/08 , G03B21/11 , G03B21/20
CPC分类号： G02B13/08 , G03B21/11 , G03B21/20
摘要： An illuminating optical system for use in a microfilm reader/printer or the like for illuminating a film comprises an axially symmetric lens system and an anamorphic lens system. The anamorphic lens system includes a condenser lens opposed to a light source. A microfilm reader/printer having such an illuminating optical system causes the axially symmetric lens system to illuminate the microfilm during a reading operation, and the anamorphic lens system to illuminate the film during a printing operation.
摘要翻译：用于微缩胶片读取器/打印机等中用于照射胶片的照明光学系统包括轴对称透镜系统和变形透镜系统。变形透镜系统包括与光源相对的聚光透镜。具有这种照明光学系统的微缩胶片读取器/打印机使得轴向对称透镜系统在读取操作期间照亮微缩胶片，并且在打印操作期间使变形透镜系统照亮胶片。

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