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1. 发明授权

US08149516B2 Zoom lens with high optical performance throughout entire zoom range and image pickup apparatus having the same 有权
标题翻译：在整个变焦范围内具有高光学性能的变焦镜头和具有该变焦镜头的摄像装置
公开(公告)号：US08149516B2
公开(公告)日：2012-04-03
申请号：US12787080
申请日：2010-05-25
申请人： Takahiro Yoshimi , Youtarou Sanjou
发明人： Takahiro Yoshimi , Youtarou Sanjou
IPC分类号： G02B15/14
CPC分类号： G02B15/173
摘要： A zoom lens comprises, in order from an object side to an image side, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, a third lens unit, and a fourth lens unit having a positive refractive power. The fourth lens unit includes a forty-first lens unit having a negative refractive power and arranged at the object side with reference to the longest air gap and a forty-second lens unit having a positive refractive power and arranged at the image side with reference to the air gap. The forty-first lens unit includes a negative 411st lens, and the forty-second lens unit includes a positive 421st lens. Abbe numbers and partial dispersion ratios of materials of the 411st lens and the 421st lens νd411, θgF411, νd421 and θgF421 are appropriately set.
摘要翻译：变焦透镜从物体侧到像侧依次包括具有正折光力的第一透镜单元，具有负折光力的第二透镜单元，第三透镜单元和具有正折射率的第四透镜单元功率。第四透镜单元包括具有负折光力的第四十一透镜单元，并且相对于最长气隙布置在物体侧，并且参考第四透镜单元包括具有正折光力的第四十二透镜单元，并且被配置在像侧气隙。第四十一透镜单元包括负第411透镜，第四十二透镜单元包括正的第421透镜。适当地设定第411透镜和第421透镜的材料的阿贝数和部分色散比，d411，g411，＆ngr; d421和＆

2. 发明申请

US20100302649A1 ZOOM LENS WITH HIGH OPTICAL PERFORMANCE THROUGHOUT ENTIRE ZOOM RANGE AND IMAGE PICKUP APPARATUS HAVING THE SAME 有权
标题翻译：具有高光学性能的变焦镜头，具有完整的变焦范围和具有相同功能的图像拾取器具
公开(公告)号：US20100302649A1
公开(公告)日：2010-12-02
申请号：US12787080
申请日：2010-05-25
申请人： Takahiro Yoshimi , Youtarou Sanjou
发明人： Takahiro Yoshimi , Youtarou Sanjou
IPC分类号： G02B15/14
CPC分类号： G02B15/173
摘要： A zoom lens comprises, in order from an object side to an image side, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, a third lens unit, and a fourth lens unit having a positive refractive power. The fourth lens unit includes a forty-first lens unit having a negative refractive power and arranged at the object side with reference to the longest air gap and a forty-second lens unit having a positive refractive power and arranged at the image side with reference to the air gap. The forty-first lens unit includes a negative 411st lens, and the forty-second lens unit includes a positive 421st lens. Abbe numbers and partial dispersion ratios of materials of the 411st lens and the 421st lens υd411, θgF411, υd421 and θgF421 are appropriately set.
摘要翻译：变焦透镜从物体侧到像侧依次包括具有正折光力的第一透镜单元，具有负折光力的第二透镜单元，第三透镜单元和具有正折射率的第四透镜单元功率。第四透镜单元包括具有负折光力的第四十一透镜单元，并且相对于最长气隙布置在物体侧，并且参考第四透镜单元包括具有正折光力的第四十二透镜单元，并且被配置在像侧气隙。第四十一透镜单元包括负第411透镜，第四十二透镜单元包括正的第421透镜。适当地设置第411透镜和第421透镜υd411的材料的阿贝数和部分色散比例，其中gF411，υd421和＆

3. 发明申请

US20050168829A1 Anamorphic converter, lens device using the same, and image-taking device using the same 有权
标题翻译：变形转换器，使用其的透镜装置和使用其的摄像装置
公开(公告)号：US20050168829A1
公开(公告)日：2005-08-04
申请号：US11050391
申请日：2005-02-03
申请人： Ryuji Nurishi , Takahiro Yoshimi
发明人： Ryuji Nurishi , Takahiro Yoshimi
IPC分类号： G02B7/10 , G02B9/10 , G02B13/08 , G02B13/18 , G02B27/09 , G02B26/08
CPC分类号： G02B13/08
摘要： An anamorphic converter, which can be inserted into and removed from a lens group of an image-formation optical system, includes an anamorphic lens that satisfies the following conditions 0.9 1 wherein βx represents a first focal distance magnification scale at a first cross-section containing an optical axis of the anamorphic lens, βy represents a second focal distance magnification scale at a second cross-section which is perpendicular to the first cross-section and contains the optical axis, AR1 represents an aspect ratio of an image-taking range in a field of the image-formation optical system, and AR2 represents an aspect ratio at an effective range of an image-taking unit disposed at an object image side of the lens group. As such, there is provided an anamorphic converter which is small and has high optical performance, suitable for digital cinematography.
摘要翻译：可以插入到图像形成光学系统的透镜组中并从图像形成光学系统的透镜组移除的变形转换器包括满足以下条件的变形透镜：<？in-line-formula description =“In-line Formulas”end =“ 引线“>> 0.9 <（AR 1 .betax）/（AR 2 .betay）<1.1 <？in-line-formula description =”In-line Formulas“end =”tail“？> <？in-line-formula 描述=“在线公式”end =“lead”？>（AR 2 ^{2 +1）.betay /（AR 1 SUP > +1）> 1 <？in-line-formula description =“在线公式”end =“tail”？>其中，betax表示第一横截面处的第一焦距放大标度，该第一横截面包含变形的光轴透镜，betay表示在垂直于第一横截面并包含光轴的第二横截面处的第二焦距放大倍率，AR1表示图像形成场中的摄像范围的纵横比光学系统，AR2表示eff的长宽比设置在透镜组的物体像侧的摄像单元的摄像范围。因此，提供了一种小型且具有高光学性能的变形转换器，适用于数字摄影。}

4. 发明授权

US09007409B2 Optical writing head positioning mechanism, process cartridge, and image forming apparatus 有权
标题翻译：光写头定位机构，处理盒和成像设备
公开(公告)号：US09007409B2
公开(公告)日：2015-04-14
申请号：US14325734
申请日：2014-07-08
申请人： Kenji Nakamura , Tamotsu Ikeda , Yasuhide Matsuno , Minoru Toyoda , Masanari Fujita , Takahiro Yoshimi
发明人： Kenji Nakamura , Tamotsu Ikeda , Yasuhide Matsuno , Minoru Toyoda , Masanari Fujita , Takahiro Yoshimi
IPC分类号： B41J2/00 , B41J2/435 , G03G15/04 , G03G21/18
CPC分类号： G03G15/04 , G03G21/1666
摘要： An optical writing head positioning mechanism includes spacers provided between a latent image carrier for carrying an electrostatic latent image and an optical writing head for exposing the latent image carrier. The spacers each include at least one carrier contact surface that contacts the latent image carrier and at least one head contact surface that contacts the optical writing head to determine an interval between the latent image carrier and the optical writing head. The latent image carrier is in contact with a cleaning member that cleans a cleaning area on a surface of the latent image carrier. In at least one of the spacers, the at least one carrier contact surface includes plural carrier contact surfaces not disposed on edges of the cleaning area, and one of the edges of the cleaning area is located between two adjacent ones of the plural carrier contact surfaces.
摘要翻译：光写头定位机构包括设置在用于承载静电潜像的潜像载体和用于曝光潜像载体的光写头之间的间隔物。间隔件包括至少一个接触潜影载体的载体接触表面和接触光写入头的至少一个磁头接触表面，以确定潜像载体和光写头之间的间隔。潜像载体与清洁潜像载体的表面上的清洁区域的清洁部件接触。在所述间隔物中的至少一个中，所述至少一个载体接触表面包括不设置在所述清洁区域的边缘上的多个载体接触表面，并且所述清洁区域的边缘中的一个位于所述多个载体接触表面中的相邻两个。

5. 发明申请

US20120218645A1 ZOOM LENS AND IMAGE PICKUP APPARATUS HAVING THE SAME 有权
标题翻译：变焦镜头和图像拾取器具
公开(公告)号：US20120218645A1
公开(公告)日：2012-08-30
申请号：US13396510
申请日：2012-02-14
申请人： Takahiro Yoshimi
发明人： Takahiro Yoshimi
IPC分类号： G02B15/14
CPC分类号： G02B15/161
摘要： A zoom lens includes a first lens unit with positive refraction that is stationary for zooming, a second unit with negative refraction that moves during zooming, a third unit that moves on the optical axis along with movement of the second unit, and a fourth unit with positive refraction that is stationary during zooming, arranged in order from the object to image planes. The first unit includes a negative meniscus element G1 convex towards the object plane, a positive element G2, a positive element G3, and a positive meniscus element G5 convex towards the object plane, arranged in order from the object to image planes. The respective curvature radii G1R1, G1R2, G5R1, and G5R2 of surfaces of the elements G1 and G5 and the respective focal lengths fG1, fG2, and f1 of the elements G1 and G5 and the first unit are set appropriately.
摘要翻译：变焦透镜包括具有正折射的第一透镜单元，用于变焦固定，具有负折射的第二单元，其在变焦期间移动;第三单元，随着第二单元的移动在光轴上移动;第四单元，在变焦期间静止的正折射，从物体到像平面依次排列。第一单元包括朝向物平面凸起的负弯月面元件G1，朝向物平面凸起的正元件G2，正元件G3和正弯月形元件G5，其从物体到像平面依次布置。元件G1和G5的表面的各个曲率半径G1R1，G1R2，G5R1和G5R2以及元件G1和G5以及第一单元的各个焦距fG1，fG2和f1被适当地设定。

6. 发明授权

US10606202B2 Image forming apparatus to calculate film thicknesses of a photoconductor film of a photoconductor, image forming method, and non-transitory recording medium storing image forming program 有权
公开(公告)号：US10606202B2
公开(公告)日：2020-03-31
申请号：US16183874
申请日：2018-11-08
申请人： Yasuhide Matsuno , Takahiro Yoshimi , Shinji Minami
发明人： Yasuhide Matsuno , Takahiro Yoshimi , Shinji Minami
IPC分类号： G03G15/00 , G03G15/02
摘要： An image forming apparatus includes a photoconductor, a charging roller to charge the photoconductor, a power source to apply a charging bias to the charging roller, a current sensor to generate a feedback signal representing an output current flowing from the charging roller to the photoconductor, a memory, and circuitry. The circuitry calculates film thicknesses of a photoconductor film of the photoconductor at a plurality of points of time based on a voltage of the charging bias and the output current, calculates travel distances of the photoconductor charged at the plurality of points of time, associates the film thicknesses with the travel distances, stores the film thicknesses and the travel distances in the memory, calculates a present estimated film thickness based on the film thicknesses and the travel distances, and calculates an estimated film thickness range corresponding to a present travel distance based on the present estimated film thickness.

7. 发明申请

US20190146394A1 IMAGE FORMING APPARATUS, IMAGE FORMING METHOD, AND NON-TRANSITORY RECORDING MEDIUM STORING IMAGE FORMING PROGRAM 审中-公开
公开(公告)号：US20190146394A1
公开(公告)日：2019-05-16
申请号：US16183874
申请日：2018-11-08
申请人： Yasuhide Matsuno , Takahiro Yoshimi , Shinji Minami
发明人： Yasuhide Matsuno , Takahiro Yoshimi , Shinji Minami
IPC分类号： G03G15/00 , G03G15/02
摘要： An image forming apparatus includes a photoconductor, a charging roller to charge the photoconductor, a power source to apply a charging bias to the charging roller, a current sensor to generate a feedback signal representing an output current flowing from the charging roller to the photoconductor, a memory, and circuitry. The circuitry calculates film thicknesses of a photoconductor film of the photoconductor at a plurality of points of time based on a voltage of the charging bias and the output current, calculates travel distances of the photoconductor charged at the plurality of points of time, associates the film thicknesses with the travel distances, stores the film thicknesses and the travel distances in the memory, calculates a present estimated film thickness based on the film thicknesses and the travel distances, and calculates an estimated film thickness range corresponding to a present travel distance based on the present estimated film thickness.

8. 发明授权

US07366420B2 Optical transmission device 失效
标题翻译：光传输装置
公开(公告)号：US07366420B2
公开(公告)日：2008-04-29
申请号：US10808022
申请日：2004-03-23
申请人： Takahiro Yoshimi , Ryuji Ohmuro
发明人： Takahiro Yoshimi , Ryuji Ohmuro
IPC分类号： H04B10/00
CPC分类号： H04B10/1125
摘要： An optical transmission device for providing stable communication with a partner device by reducing errors in optical axis misalignment. Such errors are caused by uneven distribution of the light intensity in a received light beam resulting from atmospheric microscopic fluctuations. A cross pattern filter having at least two cross patterns is used at a partner transmission device side with respect to an incident direction detecting means, and arranged so that a cross pattern generated on the position detecting photodetector by the cross pattern filter and parting lines for dividing a position detecting photodetector do not overlap with each other, but intersect with each other.
摘要翻译：一种光传输装置，用于通过减少光轴未对准的误差来提供与伙伴装置的稳定通信。这种错误是由于由大气微观波动引起的接收光束中的光强度的不均匀分布引起的。在相对于入射方向检测装置的对方传输装置侧使用具有至少两个十字图案的十字图形滤波器，并且被布置成使得通过十字图形滤波器在位置检测光电检测器上产生的交叉图案和分割线位置检测光电检测器彼此不重叠，而是彼此交叉。

9. 发明授权

US07113344B2 Anamorphic converter, lens device using the same, and image-taking device using the same 有权
标题翻译：变形转换器，使用其的透镜装置和使用其的摄像装置
公开(公告)号：US07113344B2
公开(公告)日：2006-09-26
申请号：US11050391
申请日：2005-02-03
申请人： Ryuji Nurishi , Takahiro Yoshimi
发明人： Ryuji Nurishi , Takahiro Yoshimi
IPC分类号： G02B13/08
CPC分类号： G02B13/08
摘要： An anamorphic converter, which can be inserted into and removed from a lens group of an image-formation optical system, includes an anamorphic lens that satisfies the following conditions 0.9 1 wherein βx represents a first focal distance magnification scale at a first cross-section containing an optical axis of the anamorphic lens, βy represents a second focal distance magnification scale at a second cross-section which is perpendicular to the first cross-section and contains the optical axis, AR1 represents an aspect ratio of an image-taking range in a field of the image-formation optical system, and AR2 represents an aspect ratio at an effective range of an image-taking unit disposed at an object image side of the lens group. As such, there is provided an anamorphic converter which is small and has high optical performance, suitable for digital cinematography.
摘要翻译：可以插入到图像形成光学系统的透镜组中并从图像形成光学系统的透镜组移除的变形转换器包括满足以下条件的变形透镜：<？in-line-formula description =“In-line Formulas”end =“ 引线“>> 0.9 <（AR 1 .betax）/（AR 2 .betay）<1.1 <？in-line-formula description =”In-line Formulas“end =”tail“？> <？in-line-formula 描述=“在线公式”end =“lead”？>（AR 2 ^{2 +1）.betay /（AR 1 SUP > +1）> 1 <？in-line-formula description =“在线公式”end =“tail”？>其中，betax表示第一横截面处的第一焦距放大标度，该第一横截面包含变形的光轴透镜，betay表示与第一横截面垂直的第二横截面并包含光轴的第二焦距放大倍数，AR 1表示图像取样区域中的摄像范围的纵横比，形成光学系统，AR 2表示e的纵横比设置在透镜组的物体像侧的摄像单元的有效范围。因此，提供了一种小型且具有高光学性能的变形转换器，适用于数字摄影。}

10. 发明授权

US06545818B2 Zoom lens and camera system 有权
标题翻译：变焦镜头和相机系统
公开(公告)号：US06545818B2
公开(公告)日：2003-04-08
申请号：US09562933
申请日：2000-05-02
申请人： Fumiaki Usui , Kiyoshi Fukami , Takahiro Yoshimi
发明人： Fumiaki Usui , Kiyoshi Fukami , Takahiro Yoshimi
IPC分类号： G02B1514
CPC分类号： G02B15/173
摘要： A zoom lens includes, in order from an object side to an image side, a first lens unit of positive refractive power, a second lens unit of negative refractive power for variation of magnification, a third lens unit for compensating for shift of an image plane caused by the variation of magnification, and a fixed fourth lens unit of positive refractive power, wherein the first lens unit comprises a first lens subunit of negative refractive power fixed during focusing, a second lens subunit having a focusing function, and a third lens subunit of positive refractive power fixed during focusing, and at least one of the first lens subunit and the second lens subunit and the third lens subunit respectively have aspheric lenses.
摘要翻译：变焦透镜从物体侧到像侧依次包括正屈光力的第一透镜单元，用于变倍放大的负折射力的第二透镜单元，用于补偿像平面偏移的第三透镜单元由倍率变化引起的正屈光力固定的第四透镜单元，其中第一透镜单元包括在聚焦期间固定的负折光力的第一透镜子单元，具有聚焦功能的第二透镜子单元和第三透镜子单元在聚焦期间固定正屈光力，并且第一透镜子单元和第二透镜子单元和第三透镜子单元中的至少一个分别具有非球面透镜。

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