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31. 发明授权

US07952601B2 Lens array, exposure head, and image forming apparatus 有权
标题翻译：透镜阵列，曝光头和图像形成装置
公开(公告)号：US07952601B2
公开(公告)日：2011-05-31
申请号：US12358042
申请日：2009-01-22
申请人： Ryuta Koizumi , Yujiro Nomura , Takeshi Sowa , Ken Ikuma
发明人： Ryuta Koizumi , Yujiro Nomura , Takeshi Sowa , Ken Ikuma
IPC分类号： B41J2/45
CPC分类号： G03G15/326 , G03G15/04072 , G03G15/0435
摘要： An exposure head includes: a lens array in which lenses are disposed in a first direction; and a light-emitting element substrate on which light-emitting elements that emit light to be focused by the lenses are disposed. Length L1 of the lenses in the first direction and length L2 of the lenses in a second direction orthogonal to the first direction have a relation represented by an expression 1
摘要翻译：曝光头包括：透镜阵列，其中透镜沿第一方向设置; 以及发光元件基板，在该发光元件基板上设置发射由透镜聚焦的光的发光元件。透镜在第一方向上的长度L1和与第一方向正交的第二方向上的透镜的长度L2具有由表达式1

32. 发明授权

US07808519B2 Line head and an image forming apparatus using the line head 有权
标题翻译：线头和使用线头的成像设备
公开(公告)号：US07808519B2
公开(公告)日：2010-10-05
申请号：US11777172
申请日：2007-07-12
申请人： Yujiro Nomura , Nozomu Inoue , Ryuta Koizumi , Ken Ikuma
发明人： Yujiro Nomura , Nozomu Inoue , Ryuta Koizumi , Ken Ikuma
IPC分类号： B41J2/435 , B41J2/47
CPC分类号： B41J2/451 , G03G15/04045 , G03G2215/0409
摘要： A line head, includes: a microlens array in which a plurality of microlenses having a magnification whose absolute value is below 1 are arranged in a main scanning direction of a surface-to-be-scanned, and a plurality of luminous element groups which are arranged in a one-to-one correspondence with the respective plurality of microlenses, wherein in each of the plurality of luminous element groups, a plurality of luminous elements are arranged at mutually different main-scanning-direction positions in the main scanning direction, the plurality of luminous elements are respectively caused to emit lights at timings in conformity with a movement of the surface-to-be-scanned in a sub scanning direction, and light beams emitted from the plurality of luminous elements are imaged on the surface-to-be-scanned at mutually different main-scanning-direction positions in the main scanning direction to form a plurality of spots side by side on the surface-to-be-scanned in the main scanning direction, and in each of the plurality of luminous element groups, out of the plurality of luminous elements constituting the luminous element group, two luminous elements caused to emit lights to form adjacent spots are arranged at mutually different sub-scanning-direction positions in the sub scanning direction.
摘要翻译：线头包括：微透镜阵列，其中具有绝对值小于1的倍率的多个微透镜被布置在待扫描表面的主扫描方向上，并且多个发光元件组是与所述多个微透镜一一对应配置，其中在所述多个发光元件组中的每一个中，多个发光元件布置在主扫描方向上的相互不同的主扫描方向位置处，分别使多个发光元件按照与副扫描方向上的被扫描表面的移动一致的定时发光，并且从多个发光元件发射的光束被成像在表面 - 在主扫描方向上的相互不同的主扫描方向位置被扫描，以在主扫描方向上的待扫描表面上并排地形成多个斑点 n，并且在所述多个发光体组中的每一个中，在构成所述发光元件组的所述多个发光元件中，在所述多个发光元件组中的相互不同的副扫描方向位置处布置使得发光以形成相邻光点的两个发光元件副扫描方向。

33. 发明申请

US20100201778A1 Line Head and an Image Forming Apparatus Using Such a Line Head 有权
标题翻译：线头和使用这种线头的图像形成装置
公开(公告)号：US20100201778A1
公开(公告)日：2010-08-12
申请号：US12764495
申请日：2010-04-21
申请人： Yujiro Nomura , Nozomu Inoue , Ryuta Koizumi , Ken Ikuma
发明人： Yujiro Nomura , Nozomu Inoue , Ryuta Koizumi , Ken Ikuma
IPC分类号： F21V13/00
CPC分类号： B41J2/45
摘要： A line head, includes: a substrate which is provided with a plurality of luminous element groups which respectively include a plurality of luminous elements in a first direction which emit light beams; a lens array which includes a plurality of imaging lenses which are provided corresponding to the plurality of luminous element groups; and a light shielding member which is disposed between the substrate and the lens array and includes a plurality of light guiding holes which correspond to the plurality of luminous element groups, wherein the lens array is away from the light shielding member, an inner diameter of each of the plurality of light guiding holes in the first direction is a first light guiding hole diameter, and a bore diameter of each of the plurality of imaging lenses in the first direction is a first lens diameter, and the first light guiding hole diameter is smaller than the first lens diameter.
摘要翻译：行头包括：基板，其设置有分别包括发射光束的第一方向上的多个发光元件的多个发光元件组; 透镜阵列，其包括对应于所述多个发光元件组而设置的多个成像透镜; 以及遮光构件，其设置在所述基板和所述透镜阵列之间，并且包括与所述多个发光元件组对应的多个导光孔，其中所述透镜阵列远离所述遮光构件，每个所述透镜阵列的内径在第一方向上的多个导光孔的长度为第一导光孔直径，第一方向上的多个摄像透镜的孔径为第一透镜直径，第一导光孔直径较小比第一透镜直径。

34. 发明授权

US07733364B2 Line head and an image forming apparatus using such a line head 失效
标题翻译：线头和使用这种线头的图像形成装置
公开(公告)号：US07733364B2
公开(公告)日：2010-06-08
申请号：US11832525
申请日：2007-08-01
申请人： Yujiro Nomura , Nozomu Inoue , Ryuta Koizumi , Ken Ikuma
发明人： Yujiro Nomura , Nozomu Inoue , Ryuta Koizumi , Ken Ikuma
IPC分类号： B41J15/14 , B41J27/00
CPC分类号： B41J2/45
摘要： A line head, includes: a substrate which is provided with a plurality of luminous element groups which respectively include a plurality of luminous elements in a first direction which emit light beams; a lens array which includes a plurality of imaging lenses which are provided corresponding to the plurality of luminous element groups; and a light shielding member which is disposed between the substrate and the lens array and includes a plurality of light guiding holes which correspond to the plurality of luminous element groups, wherein the lens array is away from the light shielding member, an inner diameter of each of the plurality of light guiding holes in the first direction is a first light guiding hole diameter, and a bore diameter of each of the plurality of imaging lenses in the first direction is a first lens diameter, and the first light guiding hole diameter is smaller than the first lens diameter.
摘要翻译：行头包括：基板，其设置有分别包括发射光束的第一方向上的多个发光元件的多个发光元件组; 透镜阵列，其包括对应于所述多个发光元件组而设置的多个成像透镜; 以及遮光构件，其设置在所述基板和所述透镜阵列之间，并且包括与所述多个发光元件组对应的多个导光孔，其中所述透镜阵列远离所述遮光构件，每个所述透镜阵列的内径在第一方向上的多个导光孔的长度为第一导光孔直径，第一方向上的多个摄像透镜的孔径为第一透镜直径，第一导光孔直径较小比第一透镜直径。

35. 发明授权

US07719739B2 Light scanning apparatus, method of controlling the same and image forming apparatus equipped with the same 有权
标题翻译：光扫描装置及其控制方法以及配备有该装置的成像装置
公开(公告)号：US07719739B2
公开(公告)日：2010-05-18
申请号：US12167097
申请日：2008-07-02
申请人： Akihiro Gomi , Yujiro Nomura , Ken Ikuma
发明人： Akihiro Gomi , Yujiro Nomura , Ken Ikuma
IPC分类号： G02B26/08
CPC分类号： G02B26/105 , G02B27/0031 , Y10S359/90
摘要： A light scanning apparatus makes a light beam scan along a main scanning direction on an effective scanning region which has a predetermined width. The apparatus comprises: a light source which emits the light beam; a deflector which includes an oscillation mirror which oscillates about an oscillatory axis which is orthogonal or approximately orthogonal to the main scanning direction, deflects the light beam emitted from the light source using the oscillation mirror, and makes the light beam scan a second scanning range which contains but extends beyond a first scanning range which corresponds to the effective scanning region; a detector which detects the scanning light beam which moves through a position which is outside the first scanning range but is within the second scanning range, and outputs a signal; and a controller which controls a mirror drive signal fed to the oscillation mirror based on the output signal from the detector and accordingly adjusts the amplitude of the oscillation mirror. In the apparatus above, the controller stops driving the oscillation mirror when confirming based on the output signal that the oscillation mirror is under abnormal control.
摘要翻译：光扫描装置在具有预定宽度的有效扫描区域沿着主扫描方向进行光束扫描。该装置包括：发射光束的光源; 包括围绕与主扫描方向正交或大致正交的振荡轴振荡的振荡镜的偏转器，使用振荡镜偏转从光源发射的光束，并使光束扫描第二扫描范围，该扫描范围包含但延伸超过对应于有效扫描区域的第一扫描范围; 检测器，其检测移动通过处于第一扫描范围之外但处于第二扫描范围内的位置的扫描光束，并输出信号; 以及控制器，其基于来自检测器的输出信号来控制馈送到振荡镜的反射镜驱动信号，并且因此调整振荡镜的振幅。在上述装置中，当基于振荡镜处于异常控制的输出信号进行确认时，控制器停止驱动振荡镜。

36. 发明授权

US07639274B2 Image forming apparatus with exposure units using oscillation mirrors and method for controlling drive frequencies of the oscillation mirrors 失效
标题翻译：具有使用振荡镜的曝光单元的图像形成装置以及用于控制振荡镜的驱动频率的方法
公开(公告)号：US07639274B2
公开(公告)日：2009-12-29
申请号：US11104289
申请日：2005-04-12
申请人： Yujiro Nomura , Ken Ikuma
发明人： Yujiro Nomura , Ken Ikuma
IPC分类号： B41J15/14 , B41J27/00
CPC分类号： G02B26/105
摘要： In an image forming apparatus including plural exposure units each deflecting a light beam from a light source by means of an oscillation mirror in resonant oscillations and scanning the deflected light beam on a latent image carrier thereby forming a latent image on the latent image carrier, every one of the exposure units assuredly attains an adequate amplitude of the oscillation mirror for ensuring the formation of images of high quality. More specifically, a CPU 101 retrieves resonant frequencies of individual deflectors previously stored in a memory. The CPU 101 calculates an average value of these resonant frequencies and applies a drive command to mirror drivers 1022 of the exposure units 6Y, 6M, 6C, 6K such as to drive all the deflectors into oscillations at the average value. Alternatively, a resonant-frequency adjusting section 653 makes adjustment to match the resonant frequencies of the individual deflectors substantially with a drive frequency. This ensures that all the oscillation mirrors attain adequate amplitudes.
摘要翻译：在包括多个曝光单元的图像形成装置中，每个曝光单元各自通过谐振振荡中的振荡镜偏转来自光源的光束，并且将偏转的光束扫描在潜像载体上，从而在潜像载体上形成潜像，其中一个曝光单元确实获得了足够的振荡镜幅度，以确保形成高质量的图像。更具体地，CPU 101检索预先存储在存储器中的各个偏转器的谐振频率。 CPU 101计算这些谐振频率的平均值，并将驱动命令施加到曝光单元6Y，6M，6C，6K的镜像驱动器1022，以将平均值驱动所有偏转器进入振荡。或者，谐振频率调整部653进行调整，使各个偏转器的谐振频率与驱动频率基本一致。这确保了所有的振荡镜都能获得足够的振幅。

37. 发明授权

US07626605B2 Apparatus for and method of forming image using oscillation mirror 失效
公开(公告)号：US07626605B2
公开(公告)日：2009-12-01
申请号：US11828241
申请日：2007-07-25
申请人： Yujiro Nomura , Ken Ikuma
发明人： Yujiro Nomura , Ken Ikuma
IPC分类号： B41J2/435 , B41J2/47
CPC分类号： H04N1/053 , H04N1/00525 , H04N1/1135 , H04N1/12 , H04N2201/04713 , H04N2201/04732 , H04N2201/04744
摘要： As a scanning light beam which is scanning and traveling away from an effective image region moves passed the location of a sensor, a horizontal synchronizing signal Hsync is obtained as a first detection signal. A deflection mirror surface turns around, thereby reversing the direction in which the scanning light beam scans. This scanning light beam therefore scans an effective image region IR, and a latent image forming operation using this scanning light beam is controlled based on the horizontal synchronizing signal Hsync. Hence, there is a relatively long period of time (T4+T5) since the horizontal synchronizing signal Hsync is obtained until formation of a latent image starts in accordance with the signal Hsync. This secures sufficient time for control of the latent image forming operation based on the horizontal synchronizing signal Hsync, and hence, realizes the latent image forming operation as desired during the time T6.

38. 发明授权

US07557976B2 Light scanning apparatus and method to prevent damage to an oscillation mirror, reducing its amplitude, in an abnormal control condition via a detection signal outputted to a controller even though the source still emits light 有权
标题翻译：光扫描装置和方法，用于防止损坏振荡镜，通过输出到控制器的检测信号在异常控制状态下减小其振幅，即使光源仍然发光
公开(公告)号：US07557976B2
公开(公告)日：2009-07-07
申请号：US11846444
申请日：2007-08-28
申请人： Akihiro Gomi , Yujiro Nomura , Ken Ikuma
发明人： Akihiro Gomi , Yujiro Nomura , Ken Ikuma
IPC分类号： G02B26/08
CPC分类号： G02B26/105 , G02B27/0031 , Y10S359/90
摘要： A light scanning apparatus includes a deflector having an oscillation mirror that oscillates about an axis that is orthogonal to a main scanning direction. A detector detects a scanning light beam deflected by the oscillation mirror and moving in a scanning region. A controller adjusts the amplitude of the oscillation mirror based on a detection signal outputted from the detector, and stops driving the oscillation mirror when the detection signal is not outputted from the detector.
摘要翻译：光扫描装置包括具有围绕与主扫描方向正交的轴振荡的振荡镜的偏转器。检测器检测由振荡镜偏转并在扫描区域中移动的扫描光束。控制器基于从检测器输出的检测信号来调整振荡镜的振幅，并且当检测信号未从检测器输出时停止驱动振荡镜。

39. 发明授权

US07327977B2 Image forming apparatus and correction method for color registration offset 失效
标题翻译：用于彩色配准偏移的图像形成装置和校正方法
公开(公告)号：US07327977B2
公开(公告)日：2008-02-05
申请号：US11285507
申请日：2005-11-22
申请人： Koji Kitazawa , Yujiro Nomura , Ken Ikuma , Kunihiro Kawada
发明人： Koji Kitazawa , Yujiro Nomura , Ken Ikuma , Kunihiro Kawada
IPC分类号： G03G15/01
CPC分类号： G03G15/0131 , G03G15/0194 , G03G2215/0132 , G03G2215/0161 , G03G2215/1623
摘要： Prior to the formation of registration pattern images (Step S7), base information is acquired by means of a test pattern sensor detecting a surface of an intermediate transfer belt or particularly a surface of a pattern formation region thereof. A surface condition of the pattern formation region is acquired based on the base information thus acquired, while the formation of the registration pattern images is controlled based on the surface condition. In this manner, the registration pattern images are formed with an adequate consideration given to the surface condition of the pattern formation region where the registration pattern images are to be formed (Step S7). Hence, the positions of the registration pattern images may be detected with high accuracies. As a result, a proper correction of color registration offset may be accomplished, assuredly preventing the occurrence of the color registration offset or degraded color tone.
摘要翻译：在形成注册图案图像之前（步骤S7），通过检测中间转印带的表面或特别是其图案形成区域的表面的测试图案传感器来获取基本信息。基于所获得的基本信息，获取图案形成区域的表面状态，同时基于表面条件来控制对准图案图像的形成。以这种方式，在对要形成配准图案图像的图案形成区域的表面状态进行充分考虑的情况下形成对准图案图像（步骤S7）。因此，可以高精度地检测配准图案图像的位置。结果，可以实现颜色对准偏移的适当校正，可靠地防止颜色对准偏移或劣化色调的发生。

40. 发明授权

US07177060B2 Optical scanning apparatus and image forming apparatus 有权
标题翻译：光学扫描装置和图像形成装置
公开(公告)号：US07177060B2
公开(公告)日：2007-02-13
申请号：US11014519
申请日：2004-12-15
申请人： Yujiro Nomura , Ken Ikuma
发明人： Yujiro Nomura , Ken Ikuma
IPC分类号： G02B26/08
CPC分类号： G02B26/0816 , G02B26/105 , G06K15/1219
摘要： The size Hbs of a beam spot of an incident light beam on a deflection mirror surface 651 is larger than the width Hb of the deflection mirror surface 651 when a pivot angle θ is zero, and therefore, Hbs>Hb is satisfied at any pivot angle θ and the deflection mirror surface 651 is overfilled with the incident light beam. Hence, even when beam rotation occurs, only a central portion of the incident light beam is reflected by the deflection mirror surface 651 and guided as a scanning light beam to a scanning lens. Owing to this, the central axis CLs of the outgoing light beam (scanning light beam) Ls from a deflector becomes close to the central axis CLs as it is when the pivot angle θ is zero.
摘要翻译：当偏转镜面651上的入射光束的光束点的大小Hbs比摆动角度θ为零时偏转镜面651的宽度Hb大，因此在任意的转角处满足Hbs> Hb θ和偏转镜表面651用入射光束过满。因此，即使当光束旋转发生时，仅入射光束的中心部分被偏转镜面651反射，并作为扫描光束被引导到扫描透镜。由此，来自偏转器的出射光束（扫描光束）Ls的中心轴线CL随着枢转角度θ为零而变得接近中心轴线CLs。

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