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公开(公告)号：US07355765B2
公开(公告)日：2008-04-08
申请号：US10413203
申请日：2003-04-15
Applicant: Yoshiki Yoshida
Inventor： Yoshiki Yoshida
CPC classification number: H04N1/053 , H04N1/1135 , H04N1/12 , H04N2201/02439 , H04N2201/02443 , H04N2201/0471 , H04N2201/04722 , H04N2201/04732 , H04N2201/04739 , H04N2201/04744 , H04N2201/04755 , H04N2201/04768 , H04N2201/04794 , H04N2201/04798
Abstract: An optical scanning apparatus provides improved image quality by changing the amount of writing scale compensation for a pixel clock during a scanning cycle. A pixel clock generation unit of the optical scanning apparatus divides the scanning cycle into multiple division periods. A phase change of the pixel clock is carried out for each of the division periods. The phase change can also be different from scanning cycle to scanning cycle.
Abstract translation: 光学扫描装置通过改变扫描周期内的像素时钟的写入标度补偿量来提供改进的图像质量。 光扫描装置的像素时钟生成单元将扫描周期分割为多个分割周期。 针对每个分割周期执行像素时钟的相位变化。 相位变化也可能不同于扫描周期到扫描周期。
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公开(公告)号：US07136085B2
公开(公告)日：2006-11-14
申请号：US10882222
申请日：2004-07-02
Applicant: Yoshiki Yoshida
Inventor： Yoshiki Yoshida
IPC: B41J2/47
CPC classification number: H04N1/053 , H04N1/1135 , H04N1/12 , H04N2201/0471 , H04N2201/04713 , H04N2201/04722 , H04N2201/04732 , H04N2201/04734 , H04N2201/04744 , H04N2201/04749 , H04N2201/04781 , H04N2201/04793
Abstract: An image-forming apparatus is disclosed that includes at least one imaging optical system forming an electrostatic latent image on the scanning surface of a medium moving in a sub scanning direction by scanning the scanning surface in a main scanning direction by periodically deflecting a laser beam with a rotary deflector, a pixel clock generation part generating a pixel clock signal for controlling the emission timing of the laser beam and changing the phase of the pixel clock signal, a region setting part setting the length of each of multiple regions based on image writing magnifications in a line in the main scanning direction, the regions being formed by dividing part of the scanning surface corresponding to the line in the main scanning direction, and a phase control part controlling the changing of the phase of the pixel clock signal region by region based on the image writing magnifications.
Abstract translation: 公开了一种图像形成装置，其包括至少一个成像光学系统，其通过在主扫描方向上扫描扫描表面而沿着副扫描方向在扫描表面上形成静电潜像，周期性地使激光束偏转 旋转偏转器，产生用于控制激光束的发光定时并改变像素时钟信号的相位的像素时钟信号的像素时钟生成部，基于图像写入放大率来设定多个区域的长度的区域设定部 在主扫描方向上的一行中，通过对与主扫描方向上的线相对应的扫描表面的一部分分割形成区域，以及相位控制部，控制像素时钟信号的相位逐渐变化 在图像写入放大率。
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公开(公告)号：US07072109B2
公开(公告)日：2006-07-04
申请号：US10496652
申请日：2003-06-27
Applicant: Masahiro Goto , Hitomu Watanabe , Yoshiki Yoshida , Hiroshi Sekiguchi
Inventor： Masahiro Goto , Hitomu Watanabe , Yoshiki Yoshida , Hiroshi Sekiguchi
CPC classification number: G02B5/045 , G02B3/005 , G03B21/625
Abstract: A projection screen 111 comprises a total reflection prism lens 114 and a lenticular lens 115 provided on the viewer's side of the total reflection prism lens 114. The total reflection prism lens 114 has a plurality of unit prisms 113 on its back surface (the outermost plane of incidence) on which imaging light L is incident. Each unit prism 113 has an apical angle λ that corresponds to the angle between the plane of incidence 113a and the plane of total reflection 113b, and the apical angles λ of the unit prisms 113 vary with the position of each unit prism 113 on the screen plane. In particular, the unit prisms 113 have apical angles λ varying continuously from 30° to 45° so that the apical angles λ on the side distant from the center O of the concentric circles are greater than the apical angles λ on the side close to this center O.
Abstract translation: 投影屏幕111包括设置在全反射棱镜透镜114的观察者侧的全反射棱镜透镜114和双凸透镜115。 全反射棱镜透镜114在成像光L入射的背面（最外侧的入射面）上具有多个单位棱镜113。 每个单位棱镜113具有对应于入射平面113a和全反射面113b之间的角度的顶角λ，并且单位棱镜113的顶角λ随每个单位棱镜113的位置而变化 屏幕飞机。 特别地，单位棱镜113具有从30°至45°连续变化的顶角λ，使得在远离同心圆的中心O的一侧上的顶角λ大于靠近该侧的顶侧的顶角λ 中心O.
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14.发明申请公开(公告)号：US20060139433A1
公开(公告)日：2006-06-29
申请号：US11290644
申请日：2005-12-01
Applicant: Yoshiki Yoshida
Inventor： Yoshiki Yoshida
IPC: G03G15/01
CPC classification number: G03G15/0194 , G03G15/0173 , G03G15/0189 , G03G2215/0119 , G03G2215/0158 , G03G2215/0161
Abstract: A color image forming apparatus includes a pattern forming mechanism configured to form a pattern for fine adjustment and a pattern for rough adjustment on a transfer medium, a detection mechanism configured to detect the pattern formed thereon, a displacement calculation mechanism configured to obtain a predetermined value and preset reference values, to calculate the amount of displacement based on the detected pattern and the preset reference values, and to determine whether or not the amount of the displacement is equal to or less than the predetermined value, and a displacement correction mechanism configured to correct the displacement based on the calculation.
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公开(公告)号：US20060001891A1
公开(公告)日：2006-01-05
申请号：US11168344
申请日：2005-06-29
Applicant: Yoshiki Yoshida
Inventor： Yoshiki Yoshida
IPC: G06F15/00
CPC classification number: H04N1/506 , H04N1/047 , H04N2201/0471 , H04N2201/04722 , H04N2201/04729 , H04N2201/04732 , H04N2201/04734 , H04N2201/04768 , H04N2201/04781 , H04N2201/04789 , H04N2201/04791
Abstract: An image forming apparatus includes an image forming mechanism configured to perform an image processing operation for forming a plurality of elementary-color images, superposing the plurality of elementary-color images sequentially and accurately into a single color image on a transfer medium, and transferring the single color image onto a recording sheet. An error correction mechanism is configured to perform a plurality of different recording error corrections for correcting different recording errors in a main scanning direction and a sub scanning direction during a time interval between the image processing operations on the recording sheet and on a following recording sheet. And, a selector is configured to activate at least two of the plurality of different recording error corrections.
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Patent Agency Ranking
公开(公告)号：US5376994A
公开(公告)日：1994-12-27
申请号：US18429
申请日：1993-02-16
Applicant: Takashi Mama , Yuji Yasuda , Kan Tomita , Fumihiro Miyagawa , Shinji Kobayashi , Takanobu Fujioka , Hidetoshi Kanai , Yoshiki Yoshida
Inventor： Takashi Mama , Yuji Yasuda , Kan Tomita , Fumihiro Miyagawa , Shinji Kobayashi , Takanobu Fujioka , Hidetoshi Kanai , Yoshiki Yoshida
CPC classification number: H04N1/04 , G03G15/011 , H04N1/506 , H04N1/0464
Abstract: An image forming apparatus having deflection scanning type and line type exposing devices and first and second developing devices arranged around a photoconductive element, so that parts around the photoconductive element are arranged with ease to promote the miniaturization of the apparatus. The exposing devices are selected based on the principle that the image quality is enhanced for an image of particular color and is lowered for an image of another color expected to be printed less frequently. Specifically, the deflection scanning type exposing device forms the image of the particular color, and the line type exposing device which has an inherently long optical path and simple structure forms the image of another color. Fans are provided to produce cooling air flow to the line type exposing device and to draw out toner dirt and ozone produced by the charger associated therewith. The line type exposing device and the associated charger are electrically insulated from each other and mounted in a common casing. Cleaning elements are provided to clean the charger and the line type exposing device during withdrawal of these elements from the photoconductive element.
Abstract translation: 具有偏转扫描型和线型曝光装置的图像形成装置以及围绕光电导元件布置的第一和第二显影装置，使得光敏元件周围的部分容易布置以促进装置的小型化。 基于对于特定颜色的图像增强图像质量并且对于预期要打印的颜色较少的图像的图像降低的原理，选择曝光装置。 具体地，偏转扫描型曝光装置形成特定颜色的图像，并且具有固有的长光程和简单结构的线型曝光装置形成另一种颜色的图像。 提供风扇以产生冷却空气流到线型曝光装置并且抽出与其相关联的充电器产生的调色剂污垢和臭氧。 线型曝光装置和相关充电器彼此电绝缘并安装在公共壳体中。 提供清洁元件以在将这些元件从光导元件中取出时清洁充电器和线型曝光装置。
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17.发明授权Image forming apparatus and method of correcting color misregistration in image forming apparatus 有权图像形成装置和图像形成装置中的颜色配准的校正方法公开(公告)号：US08107833B2
公开(公告)日：2012-01-31
申请号：US11556321
申请日：2006-11-03
Applicant: Yoshiki Yoshida
Inventor： Yoshiki Yoshida
IPC: G03G15/00
CPC classification number: G03G21/20 , G03G15/0131 , G03G2215/0158
Abstract: A determining unit determines whether a difference between a temperature value and a temperature detected by a temperature detecting unit is equal to or larger than a first value. A pattern forming unit, when the determining unit determines that the difference is equal to or larger than the first value, forms a pattern for measurement including sub-patterns of a plurality of colors on a transfer medium. A calculating unit calculates a misregistration-amount for each sub-pattern based on a detected position of the sub-pattern and a predetermined position of the sub-pattern. A correcting unit corrects a position on which the sub-pattern is to be formed based on the misregistration-amount. An image forming unit forms an image for each color factoring in corrected position for each color.
Abstract translation: 确定单元确定温度值和由温度检测单元检测到的温度之间的差是否等于或大于第一值。 一种图形形成单元，当确定单元确定该差异等于或大于该第一值时，在转印介质上形成包括多种颜色的子图案的测量图案。 计算单元基于子图案的检测位置和子图案的预定位置来计算每个子图案的不对准量。 校正单元基于不对准量校正要形成子图案的位置。 图像形成单元为每种颜色在校正位置形成用于每个颜色分解的图像。
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18.发明授权Fresnel lens sheet, process of producing Fresnel lens sheet, mold for use in the production process, and rear projection screen comprising the Fresnel lens sheet 有权菲涅尔透镜片，制造菲涅尔透镜片的方法，用于生产过程的模具和包括菲涅尔透镜片的背投屏幕公开(公告)号：US06947225B2
公开(公告)日：2005-09-20
申请号：US10748671
申请日：2003-12-31
Applicant: Hiroshi Sekiguchi , Yoshiki Yoshida
Inventor： Hiroshi Sekiguchi , Yoshiki Yoshida
CPC classification number: G02B3/08
Abstract: The present invention provides a Fresnel lens sheet that can, in production using a mold, be easily released from the mold and that scarcely produces stray light upon use, and others. Each prism 2 on the incident side of a Fresnel lens sheet 1 is formed to have a nearly triangular cross section and has a plane of refraction 3 that refracts projected light S incident on this plane and a plane of total reflection 4 that totally reflects, toward the viewer's side, at least part of the light refracted at the plane of refraction 3. Each prism 2 is made so that a root 5 between a prism 2 and a prism 3 situated next to the prism 2, on the plane of total reflection side of the prism 2 (a root 5 defined by the plane of refraction 3 of one prism 2B and the plane of total reflection 4 of another prism 2A situated next to the prism 2B, on the side of the plane of refraction 3 of the prism 2B) is curved toward the prism 2A side from the prism 2B side.
Abstract translation: 本发明提供一种菲涅耳透镜片，其能够在使用模具的生产中容易地从模具中释放并且在使用时几乎不产生杂散光等。 菲涅耳透镜片1的入射侧的每个棱镜2形成为具有近似三角形的横截面，并且具有折射入射在该平面上的投射光S和全反射的全反射面4的折射平面3，朝向 观察者的一侧，至少部分光在折射平面3处折射。 每个棱镜2被制成使棱镜2和棱镜3之间的棱镜5位于棱镜2的全反射面的平面上（根5由一个棱镜的折射面3定义的根部5） 2 B，并且位于棱镜2B的旁边的另一个棱镜2A的全反射面4在棱镜2B的折射面3侧）从棱镜2B向棱镜2A侧弯曲 侧。
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公开(公告)号：US20050141087A1
公开(公告)日：2005-06-30
申请号：US10508422
申请日：2003-03-26
Applicant: Yoshiki Yoshida
Inventor： Yoshiki Yoshida
CPC classification number: G03B21/625 , G02B3/08
Abstract: The present invention provides a Fresnel lens sheet capable of successfully avoiding the “collapse”, “abrasion” and “moiré” problems. A Fresnel lens sheet 10 constitutes, together with a lenticular lens sheet, a rear projection screen, which is mounted in the frame of a rear projection type display. The Fresnel lens sheet 10 includes, on one surface of its substrate, a Fresnel lens part 13 containing a plurality of lenses 11 concentrically formed on one plane. The apexes 11a of the lenses 11 situated in the area between the center O and the outer edge P of the Fresnel lens part 13 are flattened to give flat faces 12, and the widths W of the flat faces 12 of the lenses 11 on the outer edge P side are made greater than the widths W of the flat faces 12 of the lenses 11 on the center O side. The widths W of the flat faces 12 of the lenses 11 are from 0 to 30 μm.
Abstract translation: 本发明提供能够成功地避免“崩溃”，“磨损”和“莫尔”问题的菲涅尔透镜片。 菲涅尔透镜片10与双凸透镜片一起构成安装在后投影型显示器的框架中的后投影屏幕。 菲涅尔透镜片10在其基板的一个表面上包括一个菲涅尔透镜部分13，该菲涅耳透镜部分13包含同心地形成在一个平面上的多个透镜11。 位于菲涅耳透镜部13的中心O和外缘P之间的区域中的透镜11的顶点11a被平坦化，从而形成平面12，并且透镜11的平面12的宽度W 外边缘P侧比中心O侧的透镜11的平面12的宽度W大。 透镜11的平面12的宽度W为0〜30μm。
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公开(公告)号：US20050036028A1
公开(公告)日：2005-02-17
申请号：US10882222
申请日：2004-07-02
Applicant: Yoshiki Yoshida
Inventor： Yoshiki Yoshida
CPC classification number: H04N1/053 , H04N1/1135 , H04N1/12 , H04N2201/0471 , H04N2201/04713 , H04N2201/04722 , H04N2201/04732 , H04N2201/04734 , H04N2201/04744 , H04N2201/04749 , H04N2201/04781 , H04N2201/04793
Abstract: An image-forming apparatus is disclosed that includes at least one imaging optical system forming an electrostatic latent image on the scanning surface of a medium moving in a sub scanning direction by scanning the scanning surface in a main scanning direction by periodically deflecting a laser beam with a rotary deflector, a pixel clock generation part generating a pixel clock signal for controlling the emission timing of the laser beam and changing the phase of the pixel clock signal, a region setting part setting the length of each of multiple regions based on image writing magnifications in a line in the main scanning direction, the regions being formed by dividing part of the scanning surface corresponding to the line in the main scanning direction, and a phase control part controlling the changing of the phase of the pixel clock signal region by region based on the image writing magnifications.
Abstract translation: 公开了一种图像形成装置，其包括至少一个成像光学系统，其通过在主扫描方向上扫描扫描表面而沿着副扫描方向在扫描表面上形成静电潜像，周期性地使激光束偏转 旋转偏转器，产生用于控制激光束的发光定时并改变像素时钟信号的相位的像素时钟信号的像素时钟生成部，基于图像写入放大率来设定多个区域的长度的区域设定部 在主扫描方向上的一行中，通过对与主扫描方向上的线相对应的扫描表面的一部分分割形成区域，以及相位控制部，控制像素时钟信号的相位逐渐变化 在图像写入放大率。
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