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1. 发明专利

JP2005077495A Reflection-type scanning optical system 审中-公开
标题翻译：反射型扫描光学系统
公开(公告)号：JP2005077495A
公开(公告)日：2005-03-24
申请号：JP2003304690
申请日：2003-08-28
申请人： Pentax Corp , ペンタックス株式会社
发明人： IIZUKA TAKAYUKI
IPC分类号： B41J2/44 , G02B13/08 , G02B13/18 , G02B17/08 , G02B26/08 , G02B26/10 , G02B26/12 , H04N1/113
CPC分类号： G02B26/126
摘要： PROBLEM TO BE SOLVED: To suppress generation of jitters in both the main scanning direction and the sub-scanning direction, even when variations exist in the distance between the reflection face of a rotating polygon mirror and a rotation axis. SOLUTION: A laser beam, emitted from a semiconductor laser 10, is made incident on the rotating polygon mirror 50 having a plurality of reflection faces 51 via a collimating lens 20 and an anamorphic lens 30. The scanning laser beam, reflected and deflected on the reflection face 51 of the the rotating polygon mirror 50, is made incident on an fθ optical element 70. A light source part, composed of the semiconductor laser 10, the collimate lens 20 and the anamorphic lens 30, is so set that the center axis of the light which is made incident from the light source part to the rotating polygon mirror 50 exists in the main scanning plane perpendicular to the rotation axis 50a of the rotating polygon mirror 50 and comes out of the effective scanning region of a luminous flux reflected with the rotating polygon mirror 50 in the main scanning direction. Thus, the center axis of the luminous flux between the light source part and the fθ optical element 70 lies in the main scanning plane. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：即使在旋转多面镜的反射面和旋转轴之间的距离上存在变化，也可以抑制主扫描方向和副扫描方向上的抖动的产生。解决方案：从半导体激光器10发射的激光束经由准直透镜20和变形透镜30入射到具有多个反射面51的旋转多面镜50上。扫描激光束被反射和偏转在旋转多面镜50的反射面51上的光源入射到fθ光学元件70.由半导体激光器10，准直透镜20和变形透镜30构成的光源部被设定为从光源部入射到旋转多面镜50的光的中心轴存在于垂直于旋转多面镜50的旋转轴50a的主扫描平面中，并从发光体的有效扫描区域出射在旋转多面镜50的主扫描方向反射的磁通。因此，光源部和fθ光学元件70之间的光通量的中心轴位于主扫描面。版权所有（C）2005，JPO＆NCIPI

2. 发明专利

JP2005300888A Method of fixing cover to scanning optical system casing 审中-公开
标题翻译：固定扫描光学系统的方法
公开(公告)号：JP2005300888A
公开(公告)日：2005-10-27
申请号：JP2004116588
申请日：2004-04-12
申请人： Pentax Corp , ペンタックス株式会社
发明人： IIZUKA TAKAYUKI
IPC分类号： B41J2/44 , G02B26/10 , H04N1/113 , H05K5/03
摘要： PROBLEM TO BE SOLVED: To provide a method of fixing a cover to a scanning optical system casing by which any waste is prevented from being produced, a complicated component structure is unnecessary, and a complicated process is not required.
SOLUTION: A cover 5 is placed on a casing 2. Thereafter, LSU 1 is inserted into a cylindrical heat-shrinkable film 6 from the side of a side wall 2e (or a side wall 2d). The positions of legs 4 and 4 which project from respective side walls 2b and 2c are adjusted so that the heat-shrinkable film 6 is positioned between the legs. Next, heat is given to the heat-shrinkable film 6, then, the whole heat-shrinkable film 6 shrinks and is therefore as shown in the figure, closely contacted with the outer periphery of a bottom wall 2a, the side walls 2b and 2c and the cover 5. Consequently, the cover 5 is fixed to the casing 2 with the heat-shrinkable film 6.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决的问题：为了提供一种将盖固定到防止任何废物产生的扫描光学系统外壳的方法，不需要复杂的部件结构，并且不需要复杂的过程。解决方案：将盖5放置在外壳2上。此后，LSU 1从侧壁2e（或侧壁2d）的侧面插入圆筒状的热收缩性膜6。调节从各个侧壁2b和2c突出的支腿4和4的位置，使得热收缩膜6位于腿之间。接下来，对热收缩膜6进行加热，整个热收缩膜6收缩，因此如图所示，与底壁2a，侧壁2b和2c的外周紧密接触因此，盖5通过热收缩膜6固定到壳体2上。（C）2006，JPO和NCIPI

3. 发明专利

JP2004013110A Reflection type scanning optical system 审中-公开
公开(公告)号：JP2004013110A
公开(公告)日：2004-01-15
申请号：JP2002170461
申请日：2002-06-11
申请人： Pentax Corp , ペンタックス株式会社
发明人： IIZUKA TAKAYUKI
IPC分类号： B41J2/44 , G02B13/08 , G02B13/18 , G02B17/08 , G02B26/10 , H04N1/113
摘要： PROBLEM TO BE SOLVED: To provide a reflection type scanning optical system which reduces error of the terminal position of a scanning line, which is caused by plane tilt error, when being provided with a plane tilt error correction function.
SOLUTION: In the reflection type scanning optical system with the plane tilt error correction function, a lens having a cylindrical surface which has the generatrix inclined from a sub-scanning direction is provided between a fθ mirror 5 for scanning speed correction and a light receiving element 7 arranged in order to acquiring horizontal synchronization. The reflection type scanning optical system is so constituted that the direction of inclination of the generatrix of the cylindrical surface of the lens may accord with a direction in which a convergence position of a laser beam which should go to the light receiving element 7 is displaced due to plane tilt error.
COPYRIGHT: (C)2004,JPO

4. 发明专利

JP2005037703A Scanning optical system 有权
标题翻译：扫描光学系统
公开(公告)号：JP2005037703A
公开(公告)日：2005-02-10
申请号：JP2003274753
申请日：2003-07-15
申请人： Pentax Corp , ペンタックス株式会社
发明人： TAKEUCHI SHUICHI , IIZUKA TAKAYUKI
IPC分类号： B41J2/44 , G02B13/00 , G02B26/10 , G02B26/12 , H04N1/036 , H04N1/113
CPC分类号： G02B26/123
摘要： PROBLEM TO BE SOLVED: To provide a scanning optical system in which the distance between luminous fluxes on a plane to be scanned is adjusted by moving a lens necessary for the primary function of the scanning optical system.
SOLUTION: Laser luminous fluxes emitted from respective light emitting points of a laser beam source 10 and made into parallel luminous fluxes with a collimator lens 11 are converged with a cylindrical lens 12 in a subscanning direction near at a reflection face of a polygon mirror 13. The laser luminous fluxes reflected on the respective reflection faces are dynamically deflected in a main scanning direction and made incident on a second optical system 20. The second optical system 20 is composed of a first lens 21, which has power to converge the laser luminous flux mainly in the main scanning direction, and a second lens 22, which is so set that the designed main scanning magnitude is substantially +1 times and the designed subscanning magnitude is substantially -1 times. By moving the second lens 22 in the optical axis direction, the subscanning magnitude of the whole second optical system 20 is adjusted and the distance between the scanning lines on the target plane to be scanned S is adjusted.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种扫描光学系统，其中通过移动扫描光学系统的主要功能所必需的透镜来调节要扫描的平面上的光通量之间的距离。解决方案：从激光束源10的各个发光点发射并且与准直透镜11成平行光束的激光光束在靠近多边形的反射面的副扫描方向上与柱面透镜12会聚在各反射面上反射的激光光束在主扫描方向上被动态地偏转并入射到第二光学系统20上。第二光学系统20包括第一透镜21，第一透镜21具有会聚激光光束主要在主扫描方向上，第二透镜22被设定为使得设计的主扫描幅度大致为+1倍，并且设计的副扫描幅度基本上为-1倍。通过沿光轴方向移动第二透镜22，调整整个第二光学系统20的副扫描幅度，并且调整待扫描的目标平面S上的扫描线之间的距离。版权所有（C）2005，JPO＆NCIPI

5. 发明专利

JP2004109347A Scanning optical system 有权
公开(公告)号：JP2004109347A
公开(公告)日：2004-04-08
申请号：JP2002270181
申请日：2002-09-17
申请人： Pentax Corp , ペンタックス株式会社
发明人： IIZUKA TAKAYUKI
IPC分类号： B41J2/44 , G02B26/10 , H04N1/113
摘要： PROBLEM TO BE SOLVED: To provide a scanning optical system capable of adjusting the intervals between pieces of luminous flux on a surface to be scanned by moving one lens added to change the magnification of the whole scanning optical system.
SOLUTION: Pieces of laser luminous flux which are emitted from respective light emission points of a laser light source 10 and made parallel by a collimator lens 11 are once converged as a line image by a first cylindrical lens 13 in a sub-scanning direction and then relayed to the vicinity of the reflecting surface of a polygon mirror 15 by a second cylindrical lens 14. The pieces of laser luminous flux reflected by respective reflecting surfaces are made incident on a second optical system 20 while dynamically deflected in a principal scanning direction. The design sub-scanning magnification of the second cylindrical lens 14 is set to -×0.8 to ×1.2. The sub-scanning magnification of the whole scanning optical system is adjusted by moving the second cylindrical lens 14 along the axis, and the intervals between scanning lines on the scanned surface S are adjusted.
COPYRIGHT: (C)2004,JPO

6. 发明专利

JP2005189500A Scanning optical apparatus 有权
标题翻译：扫描光学装置
公开(公告)号：JP2005189500A
公开(公告)日：2005-07-14
申请号：JP2003430590
申请日：2003-12-25
申请人： Pentax Corp , ペンタックス株式会社
发明人： IIZUKA TAKAYUKI
IPC分类号： B41J2/44 , G02B1/04 , G02B7/02 , G02B13/00 , G02B26/10 , G02B26/12 , H04N1/113
CPC分类号： G02B26/125 , G02B26/124
摘要： PROBLEM TO BE SOLVED: To provide a scanning optical apparatus in which the deviation of focusing position due to temperature variation is suppressed while adopting a simple and low cost structure.
SOLUTION: The optical system 100 of the scanning optical apparatus comprises : a light source part 10; a cylindrical lens 20 which converges a laser beam emitted from the light source part 10 into only a subscanning direction; a polygon mirror 30 which dynamically deflects the laser beam converged by the cylindrical lens 20 in a main scanning direction; and a scanning and imaging lens 50 which forms the image of the deflected laser beam on a plane to be scanned 40. The light source part 10 comprises a semiconductor laser 11; and a collimate lens 12 which shapes the laser beam into a substantially parallel beam, which are fixed and supported by a fixing and holding member 13 made of a cylindrical plastic. The effective length L of the fixing and holding member 13 is made to be short by reducing a back focus with respect to the focal length of the collimate lens 12.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种扫描光学装置，其中采用简单且低成本的结构来抑制由于温度变化引起的聚焦位置的偏差。解决方案：扫描光学装置的光学系统100包括：光源部分10; 柱面透镜20，其将从光源部10发射的激光束会聚到仅副扫描方向上; 多面反射镜30，其在主扫描方向上使由柱面透镜20会聚的激光束动态偏转; 以及扫描和成像透镜50，其在被扫描的平面40上形成偏转的激光束的图像。光源部分10包括半导体激光器11; 以及准直透镜12，其将激光束成形为基本平行的光束，该光束由由圆柱形塑料制成的固定和保持部件13固定和支撑。通过减少相对于准直透镜12的焦距的后焦点使固定和保持部件13的有效长度L变短。（C）2005，JPO＆NCIPI

7. 发明专利

JP2005189094A Scanning optical device inspection apparatus 审中-公开
标题翻译：扫描光学装置检测装置
公开(公告)号：JP2005189094A
公开(公告)日：2005-07-14
申请号：JP2003430589
申请日：2003-12-25
申请人： Pentax Corp , ペンタックス株式会社
发明人： IIZUKA TAKAYUKI , NOGUCHI MASATO
IPC分类号： G01M11/00 , G02B26/10
摘要： PROBLEM TO BE SOLVED: To provide a scanning optical device inspection apparatus which extends an inspection area in a scanning optical device to be inspected without decreasing detection accuracy for an optical defect.
SOLUTION: A laser beam emitted from a light source device 10 as a collimated light beam forms a line image on a diffraction branch element 20 through a cylindrical lens 11 and branches into three light beams to form a line image again on a reflection surface 13b of a polygon mirror 13 through a relay lens 12. The three light beams are reflected by the polygon mirror 13 and pass through the scanning optical device to be inspected at different heights in a sub scanning direction to form spots on a surface to be scanned spaced apart in a main scanning direction. While rotating the polygon mirror 13, a sensor section 15a of an inspection apparatus 15 is moved in the main scanning direction to detect a peak amount of light of each light beam for each position in the main scanning direction. It is then determined that there is an optical defect in a position where the peak amount of light extremely decreases.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：解决的问题：提供一种在不会降低光学缺陷的检测精度的情况下延长要检查的扫描光学装置中的检查区域的扫描光学装置检查装置。解决方案：作为准直光束从光源装置10发射的激光束通过柱面透镜11在衍射分支元件20上形成线图像，并分支成三个光束，以在反射上再次形成线图像多角镜13的表面13b通过中继透镜12。三个光束被多面反射镜13反射并通过扫描光学装置，以在副扫描方向上不同的高度检查，以在表面上形成点在主扫描方向扫描间隔开。在旋转多面镜13的同时，检查装置15的传感器部15a沿主扫描方向移动，以检测主扫描方向上的每个位置的每个光束的峰值量。然后确定在峰值光量极度降低的位置处存在光学缺陷。版权所有（C）2005，JPO＆NCIPI

8. 发明专利

JP2005127852A Inspection device for scanning optical element 审中-公开
标题翻译：用于扫描光学元件的检查装置
公开(公告)号：JP2005127852A
公开(公告)日：2005-05-19
申请号：JP2003363490
申请日：2003-10-23
申请人： Pentax Corp , ペンタックス株式会社
发明人： IIZUKA TAKAYUKI
IPC分类号： G01M11/00 , G01M11/02 , G02B26/10 , H04N1/113
摘要： PROBLEM TO BE SOLVED: To provide an inspection device for a scanning optical element, which can expand the range of an inspection object region in the scanning optical element being an object to be inspected, without lowering the sensitivity of detecting optical defects.
SOLUTION: In the apparatus, a laser beam emitted as parallel light from a light source device 10 passes through a parallel plane plate 11a and a cylindrical lens 12, and is reflected by a reflection surface 13b of a polygon mirror 13 and enters the scanning optical element being the object to be inspected L which is held by a assembly 14 for holding the scanning optical element being the object to be inspected. Then, the laser beam, which passes the scanning optical element being the object to be inspected L, forms a spot on a plane corresponding to an object plane to be scanned. When the polygon mirror 13 is rotated, a position where the spot is formed and a position in the scanning optical element being the object to be inspected L through which the laser beam passes, are moved in the sub-scanning direction. Furthermore, when the parallel plane plate 11a is rotated, the leaser beam being the parallel light is shifted, whereby the position in the scanning optical element being the object to be inspected L through which the laser beam passes, is shifted in the sub-scanning direction.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种扫描光学元件的检查装置，其可以扩大作为被检查对象的扫描光学元件中的检查对象区域的范围，而不降低检测光学缺陷的灵敏度。解决方案：在该装置中，作为来自光源装置10的平行光发射的激光束通过平行平板11a和柱面透镜12，并被多面镜13的反射面13b反射并进入扫描光学元件是被检查物体L保持的组件14，用于保持作为被检查物体的扫描光学元件。然后，通过作为被检查物体L的扫描光学元件的激光束在与被扫描物体对应的平面上形成点。当多面反射镜13旋转时，激光束通过的点被形成的位置和作为被检查物体L的扫描光学元件的位置沿副扫描方向移动。此外，当平行平面板11a旋转时，作为平行光的激光束被移动，从而扫描光学元件中作为激光束通过的被检查物体L的位置在副扫描中移动方向。版权所有（C）2005，JPO＆NCIPI

9. 发明专利

JP2004220004A Scanning optical system 审中-公开
标题翻译：扫描光学系统
公开(公告)号：JP2004220004A
公开(公告)日：2004-08-05
申请号：JP2003420941
申请日：2003-12-18
申请人： Pentax Corp , ペンタックス株式会社
发明人： IIZUKA TAKAYUKI
IPC分类号： B41J2/44 , G02B13/00 , G02B26/10 , H04N1/113
摘要： PROBLEM TO BE SOLVED: To provide a multibeam optical system in which a scan line interval in an auxiliary scanning direction is quite easily switched without using a movement control mechanism composed of highly accurate parts.
SOLUTION: Laser beams emitted from respective light emitting points of a light source unit 10 pass through a first optical system 15, pass through a second optical system while being dynamically deflected with a polygon mirror 20, and form scan lines on a plane to be scanned. The first optical system 15 is composed of a plurality of cylindrical lenses. A second cylindrical lens is fixed on a frame so as to be movable with respect to two predetermined points in the optical axis direction, and a plurality of laser beams emitted from the light source unit 10 pass through the second cylindrical lens.
COPYRIGHT: (C)2004,JPO&NCIPI
摘要翻译：要解决的问题：提供一种多光束光学系统，其中辅助扫描方向上的扫描线间隔非常容易地切换，而不使用由高精度部件组成的移动控制机构。解决方案：从光源单元10的各个发光点发射的激光束通过第一光学系统15，通过第二光学系统同时用多面镜20动态偏转，并在平面上形成扫描线被扫描。第一光学系统15由多个柱面透镜组成。第二柱面透镜固定在框架上，以能够相对于光轴方向上的两个预定点移动，并且从光源单元10发射的多个激光束穿过第二柱面透镜。版权所有（C）2004，JPO＆NCIPI

10. 发明专利

JP2004109204A Scanning optical system 审中-公开
公开(公告)号：JP2004109204A
公开(公告)日：2004-04-08
申请号：JP2002268438
申请日：2002-09-13
申请人： Pentax Corp , ペンタックス株式会社
发明人： IIZUKA TAKAYUKI
IPC分类号： B41J2/44 , G02B26/10 , G02B26/12 , H04N1/113
CPC分类号： G02B26/123
摘要： PROBLEM TO BE SOLVED: To provide a scanning optical system which can substantially superimpose scanning lines with each other formed on a surface of a scanning object, without loss of light energy and without using an expensive means for converting anamorphic beam diameter. SOLUTION: A laser luminous flux emitted from each individual light emitting point of a semiconductor laser array 10 and made into a parallel luminous flux with a collimating lens 11, is separated into a pair of laser luminous fluxes composed of a linear polarizing component which is mutually orthogonally crossed with a double image member 13, after made into a circular luminous flux with a 1/4 wavelength plate 12. Then, a pair of the laser luminous fluxes is focused in a subscanning direction in the vicinity of a reflection surface of a polygon mirror 16 with a cylindrical lens 14. A pair of the laser luminous fluxes reflected by each reflection surface forms a pair of scanning lines which shifts to a subscanning direction and superimposes each other on the surface S of the scanning object by being deflected dynamically in a main scanning direction and transmitting simultaneously an imaging optical system 20. COPYRIGHT: (C)2004,JPO

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