公开(公告)号：US5995131A

公开(公告)日：1999-11-30

申请号：US991611

申请日：1997-12-16

申请人： Kazuo Fujibayashi ,  Koji Hoshi ,  Manabu Kato ,  Yoshihiro Ishibe

发明人： Kazuo Fujibayashi ,  Koji Hoshi ,  Manabu Kato ,  Yoshihiro Ishibe

IPC分类号： G02B26/10 ,  G02B13/00 ,  G02B13/18 ,  G02B26/12 ,  G02B26/08

CPC分类号： G02B26/125 ,  G02B13/0005

摘要： A scanning optical apparatus includes a light source device, a first optical element for converting a beam emitted from the light source device to a converging light beam, a deflecting element for deflecting the beam emitted from the light source device, a second optical element for focusing the beam emerging from the first optical element in a linear shape longitudinal in a main scanning direction on a deflective face of the deflecting element, and a third optical element for focusing the beam deflected by the deflecting element in a spot shape on a scanned surface. The third optical element has a spherical lens and a toric lens in order from the side of the deflecting element, surfaces of the spherical lens comprise a meniscus shape of positive refracting power with a concave surface faced toward the deflecting element, and the toric lens has two lens surfaces formed in aspherical shapes in a main scanning section and comprising a meniscus shape of positive refracting power with a convex surface faced toward the deflecting element in the vicinity of a center of scan.

摘要翻译： 一种扫描光学装置，包括光源装置，用于将从光源装置发射的光束转换成会聚光束的第一光学元件，用于偏转从光源装置发射的光束的偏转元件，用于聚焦的第二光学元件 在偏转元件的偏转面上以主扫描方向纵向呈线性形状的第一光学元件射出的光束，以及用于将由偏转元件偏转的光束以斑点形状聚焦在扫描表面上的第三光学元件。 第三光学元件具有从偏转元件一侧依次的球面透镜和复曲面透镜，球面透镜的表面包括正折射率的弯月形，凹面朝向偏转元件，复曲面具有 在主扫描部分中形成为非球面形状的两个透镜表面，并且包括在折射中心附近具有面向偏转元件的凸表面的正折射率的弯月形状。

公开(公告)号：US6133935A

公开(公告)日：2000-10-17

申请号：US987635

申请日：1997-12-09

申请人： Kazuo Fujibayashi ,  Koji Hoshi ,  Manabu Kato ,  Yoshihiro Ishibe

发明人： Kazuo Fujibayashi ,  Koji Hoshi ,  Manabu Kato ,  Yoshihiro Ishibe

IPC分类号： G02B26/10 ,  G02B13/00 ,  G02B13/18 ,  G02B26/12 ,  G02B26/08

CPC分类号： G02B26/125 ,  G02B13/0005

摘要： An optical scanning apparatus in which the luminous flux emitted from a light source is deflected by a deflecting device and formed by an optical device into a spot-shaped image on a plane to be scanned. The optical device has first and second toric lenses. The first toric lens has both lens surfaces formed into aspherical shapes in the main scanning cross section and has a meniscus shape in which a concave surface faces the deflecting device in the vicinity of the center of scanning and which provides a positive refractive power. The second toric lens has both lens surfaces formed into aspherical shapes in the main scanning cross section and has a meniscus shape in which a convex surface faces the deflecting device in the vicinity of the center of scanning and which provides a positive refractive power. Sections of the toric lenses perpendicular to a generating line in a sub-scanning cross section both have meniscus shapes which provide concave surfaces facing the deflecting device and which provide a positive refractive power.

摘要翻译： 一种光学扫描装置，其中从光源发射的光束被偏转装置偏转并由光学装置形成为要扫描的平面上的点状图像。 光学装置具有第一和第二复曲面透镜。 第一复曲面透镜具有在主扫描横截面中形成非球面形状的两个透镜表面，并且具有弯月面形状，其中凹面在扫描中心附近面向偏转装置并提供正折射力。 第二复曲面透镜在主扫描截面中具有形成非球面形状的两个透镜表面，并且具有弯月面形状，其中凸表面在扫描中心附近面向偏转装置并且提供正折射力。 在副扫描横截面中垂直于生成线的复曲面透镜的部分都具有弯液面形状，其提供面向偏转装置的凹面并提供正折射力。

公开(公告)号：US6067106A

公开(公告)日：2000-05-23

申请号：US59250

申请日：1998-04-14

申请人： Yoshihiro Ishibe ,  Kazuo Fujibayashi ,  Koji Hoshi

发明人： Yoshihiro Ishibe ,  Kazuo Fujibayashi ,  Koji Hoshi

IPC分类号： G02B26/12 ,  G02B26/10

CPC分类号： G02B5/1895 ,  G02B26/125 ,  G02B26/128 ,  G02B7/028

摘要： A scanning optical apparatus includes a light source, deflector for deflecting a light beam emitted from the light source, and optical device for directing the light beam emitted from the light source onto a surface to be scanned. The optical device includes a diffracting optical element. An aberration fluctuation in a sub-scanning direction resulting from environmental fluctuation of the scanning optical apparatus is corrected by the characteristic of the optical device.

摘要翻译： 扫描光学装置包括光源，用于偏转从光源发射的光束的偏转器和用于将从光源发射的光束引导到要扫描的表面上的光学装置。 光学装置包括衍射光学元件。 通过光学装置的特性来校正由扫描光学装置的环境波动引起的副扫描方向的像差波动。

公开(公告)号：US08675286B2

公开(公告)日：2014-03-18

申请号：US13183450

申请日：2011-07-15

申请人： Tsuneo Uchida ,  Koji Hoshi

发明人： Tsuneo Uchida ,  Koji Hoshi

IPC分类号： G02B15/16

CPC分类号： G02B15/163

摘要： A zoom lens system comprising: a first lens unit having positive optical power; a second lens unit having positive optical power; and at least one subsequent lens unit, wherein the zoom lens system has an image blur compensating lens unit which moves in a direction perpendicular to an optical axis, at least the first lens unit moves along the optical axis at the time of zooming from a wide-angle limit to a telephoto limit, the second lens unit or a third lens unit which is located closest to the object side in the at least one subsequent lens unit moves along the optical axis at the time of focusing from an infinity in-focus condition to a close-object in-focus condition, and the condition: 0.10

摘要翻译： 一种变焦透镜系统，包括：具有正光焦度的第一透镜单元; 具有正光焦度的第二透镜单元; 以及至少一个随后的透镜单元，其中所述变焦透镜系统具有在垂直于光轴的方向上移动的图像模糊补偿透镜单元，至少所述第一透镜单元在从广角变焦时沿着所述光轴移动 在远摄极限的角度限制下，位于最靠近物体侧的第二透镜单元或第三透镜单元在至少一个后续透镜单元中的距离处于从无限远对焦条件聚焦时沿光轴移动 到对象近距离状态，条件是：0.10 <| m | /（fT-fW）<0.40（m：从后续的每个后续的透镜单元的移动量的最大值 满足远摄极限的广角限制，fT，fW：广角限制下远摄限制下整个系统的焦距; 可互换镜头设备; 并提供相机系统。

公开(公告)号：US07956896B2

公开(公告)日：2011-06-07

申请号：US12207847

申请日：2008-09-10

申请人： Koji Hoshi

发明人： Koji Hoshi

IPC分类号： H04N5/228 ,  H04N5/262 ,  H04N9/64

CPC分类号： H04N5/23258 ,  H04N5/2178 ,  H04N5/23212 ,  H04N5/23248 ,  H04N5/23287

摘要： An image-taking apparatus is disclosed which is capable of adjusting a positional displacement of an image-taking optical system and an image-pickup element even in a state in which they are fixed. The image-taking apparatus includes the image-taking optical system including an offset lens unit movable in a direction orthogonal to an optical axis, the image-pickup element and a memory which stores adjustment data. The adjustment data is data on a movement amount of the offset lens unit to make light amounts in peripheral parts on the image-pickup element substantially homogeneous in a case where an object has a surface with approximately homogeneous luminance.

摘要翻译： 公开了一种拍摄装置，其能够即使在它们被固定的状态下也可以调整摄像光学系统和图像拾取元件的位置偏移。 摄像装置包括拍摄光学系统，包括可在与光轴正交的方向上移动的偏移透镜单元，图像拾取元件和存储调节数据的存储器。 调整数据是在物体具有大致均匀亮度的表面的情况下，偏移透镜单元的移动量使得摄像元件周边部分的光量基本均匀的数据。

公开(公告)号：US07133214B2

公开(公告)日：2006-11-07

申请号：US10891621

申请日：2004-07-15

申请人： Koji Hoshi

发明人： Koji Hoshi

IPC分类号： G02B15/14

CPC分类号： G02B15/173

摘要： A zoom lens system is disclosed, comprising, in order from an object side to an image side, a first lens unit with a positive refractive power, a second lens unit with a negative refractive power, a third lens unit with a positive refractive power, and a fourth lens unit with a positive refractive power, wherein a distance between the respective lens units is changed during zooming. The third lens unit consists of, in order from the object side to the image side, a first lens sub-unit including a positive lens with an object-side surface which has a convex shape and having a positive refractive power, an aperture stop, a second lens sub-unit including a negative lens and having a negative optical power, and a third lens sub-unit including a positive lens and having a positive optical power.

摘要翻译： 公开了一种变焦透镜系统，其从物体侧到像侧依次包括具有正屈光力的第一透镜单元，具有负屈光力的第二透镜单元，具有正屈光力的第三透镜单元， 以及具有正折光力的第四透镜单元，其中在变焦期间各个透镜单元之间的距离改变。 第三透镜单元从物体侧到像侧依次包括第一透镜子单元，该第一透镜子单元包括正透镜，物镜侧表面具有凸形并具有正折光力，孔径光阑， 包括负透镜并具有负光焦度的第二透镜子单元和包括正透镜并具有正光焦度的第三透镜子单元。

公开(公告)号：US20060146417A1

公开(公告)日：2006-07-06

申请号：US11326722

申请日：2006-01-06

申请人： Koji Hoshi

发明人： Koji Hoshi

IPC分类号： G02B15/14

CPC分类号： G02B27/646 ,  G02B15/173

摘要： Provided is a zoom lens system which includes a plurality of lens units separated from one another at intervals changed during at least one of zooming and focusing and an aperture stop. The plurality of lens units include a movable lens unit for displacing an image formed by the zoom lens system within a plane perpendicular to an optical axis. The movable lens unit includes a first lens subunit located on an object side of the aperture stop and a second lens subunit located on an image side of the aperture stop. When the image formed by the zoom lens system is displaced within the plane perpendicular to the optical axis, the aperture stop is held and the first lens subunit and the second lens subunit are moved to have a component in a direction orthogonal to the optical axis.

摘要翻译： 提供了一种变焦透镜系统，其包括在缩放和聚焦以及孔径光阑中的至少一个期间间隔地间隔开的多个透镜单元。 多个透镜单元包括可移动透镜单元，用于在垂直于光轴的平面内移动由变焦透镜系统形成的图像。 可移动透镜单元包括位于孔径光阑的物体侧的第一透镜子单元和位于孔径光阑的图像侧的第二透镜子单元。 当由变焦透镜系统形成的图像在垂直于光轴的平面内移位时，保持孔径光阑并使第一透镜子单元和第二透镜子单元移动成具有与光轴正交的方向的分量。

公开(公告)号：US07023625B2

公开(公告)日：2006-04-04

申请号：US10935112

申请日：2004-09-08

申请人： Norihiro Nanba ,  Koji Hoshi ,  Hiroyuki Hamano ,  Makoto Sekita

发明人： Norihiro Nanba ,  Koji Hoshi ,  Hiroyuki Hamano ,  Makoto Sekita

IPC分类号： G02B15/14

CPC分类号： G02B15/177

摘要： A zoom lens, including, in order from an object side to an image side (a) a first lens unit of negative optical power, (b) a second lens unit of positive optical power, and (c) a third lens unit of positive optical power, wherein a separation between the first lens unit and the second lens unit and a separation between the second lens unit and the third lens unit are varied to effect variation of magnification, and wherein, during the variation of magnification from a wide-angle end to a telephoto end with an infinitely distant object focused on, the third lens unit moves monotonically toward the image side or moves with a locus convex toward the image side.

公开(公告)号：US20050041303A1

公开(公告)日：2005-02-24

申请号：US10935112

申请日：2004-09-08

申请人： Norihiro Nanba ,  Koji Hoshi ,  Hiroyuki Hamano ,  Makoto Sekita

发明人： Norihiro Nanba ,  Koji Hoshi ,  Hiroyuki Hamano ,  Makoto Sekita

IPC分类号： G02B15/00 ,  G02B15/177 ,  G02B15/14

CPC分类号： G02B15/177

摘要： A zoom lens is constructed with, in order from an object side to an image side, a first lens unit of negative optical power, the first lens unit including a negative meniscus lens having a concave surface facing the image side and a positive meniscus lens having a convex surface facing the object side, a second lens unit of positive optical power, the second lens unit including a cemented lens of positive optical power as a whole disposed on the most image side of the second lens unit, and a lens having a concave surface facing the image side and adjoining a surface on the object side of the cemented lens, and a third lens unit of positive optical power, wherein a separation between the first lens unit and the second lens unit and a separation between the second lens unit and the third lens unit are varied to effect variation of magnification.

公开(公告)号：US6052225A

公开(公告)日：2000-04-18

申请号：US604407

申请日：1996-02-21

申请人： Koji Hoshi

发明人： Koji Hoshi

IPC分类号： G02B15/16 ,  G02B15/177 ,  G02B23/14 ,  G03B13/12 ,  G03B13/06 ,  G02B15/14

CPC分类号： G02B15/177 ,  G03B13/12 ,  G02B23/145

摘要： In a variable magnification viewfinder of real image type in which an object image formed by an objective lens system of positive refractive power is converted into an erecting image by an image inverting optical system and the erecting image is observed through an eyepiece lens system, the objective lens system includes, in order from the object side, a negative first lens unit, a negative second lens unit and a positive third lens unit, and, during variation of magnification from the lowest magnification side to the highest magnification side, both the second lens unit and the third lens unit move toward the object side monotonically, so that a good optical performance throughout the entire range of variation of magnification can be attained.

摘要翻译： 在通过目镜透镜系统观察到通过图像反转光学系统将由正屈光力的物镜系统形成的物体图像转换为竖立图像并且通过目镜透镜系统观察直立图像的实像图像类型的可变放大倍率取景器中， 透镜系统从物体侧依次包括负的第一透镜单元，负的第二透镜单元和正的第三透镜单元，并且在从最低放大倍率变化到最高放大倍率的倍率的变化期间，包括第二透镜 单元和第三透镜单元单调地朝向物体侧移动，从而可以实现在整个放大变化范围内良好的光学性能。