公开(公告)号：US20150215541A1

公开(公告)日：2015-07-30

申请号：US14607558

申请日：2015-01-28

Applicant: HOYA CORPORATION

Inventor： Hiroshi NOMURA ,  Shinya SUZUKA ,  Takahiro MORINAGA ,  Toshiki NAKAMURA ,  Eijiroh TADA

IPC: H04N5/232 ,  H04N5/225

CPC classification number: H04N5/23287 ,  H04N5/2254

Abstract: An imaging apparatus includes a front lens group having a front lens element and a reflector, in that order from an object side. The reflector includes a reflection surface which reflects light rays, from the front lens element, toward a different direction; a rear lens group positioned closer to an image plane than the front lens group, the imaging apparatus performs an image-stabilizing operation by driving the front lens element, a movable frame holding the front lens element; a support member supporting the reflector and is immovable relative to an optical axis of the front lens element, in a reference state; and a support mechanism which supports the movable frame to spherically swing about a spherical-swinging center, positioned on an extension of the optical axis of the front lens element extending behind an underside of the reflection surface of the reflector.

Abstract translation: 成像装置包括从物体侧起依次具有前透镜元件和反射器的前透镜组。 反射器包括反射表面，其将来自前透镜元件的光线朝向不同方向反射; 位于比前透镜组更靠近图像平面的后透镜组，成像装置通过驱动前透镜元件，保持前透镜元件的可移动框架来执行图像稳定操作; 支撑构件，其支撑所述反射器，并且在参考状态下相对于所述前透镜元件的光轴不可移动; 以及支撑机构，其支撑所述可动框架围绕球面摆动中心球形摆动，所述球形摆动中心位于在所述反射器的反射表面的下侧后方延伸的所述前透镜元件的光轴的延伸部上。

公开(公告)号：US20130253891A1

公开(公告)日：2013-09-26

申请号：US13849119

申请日：2013-03-22

Applicant: HOYA CORPORATION

Inventor： Satoshi INOUE ,  Eijiroh TADA ,  Fumitaka SUTO

IPC: G06F17/50

CPC classification number: A61B3/032 ,  A61B3/0025 ,  A61B3/028 ,  G02C7/028

Abstract: A simulation is configured including: an image generation part configured to generate mutually different two images as an image which is viewed by right and left eyes respectively through a lens in a monovision prescription state, when a relation between a point spread function and a distance is set in a different state by wearing the lens in the monovision prescription state; and an image displayer configured to display the two different images generated by the image generation part individually for each of the right and left eyes of an examinee.

Abstract translation: 模拟被配置为包括：图像生成部，其被配置为当以单视角处方状态分别通过透镜分别通过右眼和左眼观看生成相互不同的两个图像时，当点扩散函数和距离之间的关系为 通过将镜片戴在单眼处方状态下，处于不同的状态; 以及图像显示器，被配置为针对受检者的左眼和右眼分别显示由图像生成部分生成的两个不同的图像。

公开(公告)号：US20180149838A1

公开(公告)日：2018-05-31

申请号：US15722181

申请日：2017-10-02

Applicant: HOYA CORPORATION

Inventor： Yutaka TAKAKUBO ,  Eijiroh TADA

IPC: G02B13/00 ,  G02B13/18 ,  G02B15/16

CPC classification number: G02B13/0045

Abstract: An imaging optical system includes a positive or negative first lens group, a diaphragm and a positive second lens group. The first lens group includes a positive lens element, provided closest to the object side, that has an aspherical surface on the object side thereof, the aspherical surface including a paraxial convex surface convexing toward the object side. This aspherical surface has a curvature that is positive along a meridional cross-section at the paraxial portion thereof, and the curvature of the meridional cross-section changes from a positive value to a negative value in an area within 75% of an effective aperture from the paraxial portion toward the periphery of the aspherical surface.

公开(公告)号：US20150103417A1

公开(公告)日：2015-04-16

申请号：US14501816

申请日：2014-09-30

Applicant: HOYA CORPORATION

Inventor： Hiroshi NOMURA ,  Eijiroh TADA

IPC: G02B13/00 ,  G02B13/04

CPC classification number: G02B13/0065 ,  G02B13/005 ,  G02B13/04

Abstract: An imaging optical system includes a bending optical element which bends an object-emanating light bundle, a post-bending lens system on a post-bending optical axis defined by the bending optical element, and an image sensor. An effective optical surface of a large-diameter lens element, having a greatest axial light bundle effective radius, is formed into a non-circular shape by making a length of the effective optical surface from the post-bending optical axis toward a side opposite from the object side smaller than the axial light bundle effective radius, with reference to the axial light bundle effective radius lying on a plane which extends orthogonal to a plane including both the post-bending optical axis and a pre-bending optical axis of the imaging optical system and includes the post-bending optical axis.

Abstract translation: 成像光学系统包括弯曲光学元件，其弯曲发光的光束，弯曲后的透镜系统在由弯曲光学元件限定的后弯曲光轴上，以及图像传感器。 具有最大轴向光束有效半径的大直径透镜元件的有效光学表面通过使有效光学表面的长度从后弯曲光轴朝向相反侧形成为非圆形 物体侧小于轴向光束有效半径，参考轴向光束有效半径，其位于与包括成像光学的后弯曲光轴和预弯曲光轴的平面正交的平面上 系统，并包括后弯曲光轴。

公开(公告)号：US20210026116A1

公开(公告)日：2021-01-28

申请号：US17071317

申请日：2020-10-15

Applicant: HOYA CORPORATION

Inventor： Yutaka TAKAKUBO ,  Eijiroh TADA

IPC: G02B13/00

Abstract: An imaging optical system includes a positive first lens group, a diaphragm and a positive second lens group. The first lens group includes a positive lens element, provided closest to the object side, that has an aspherical surface on the object side thereof, the aspherical surface including a paraxial convex surface convexing toward the object side. This aspherical surface has a curvature that is positive along a meridional cross-section at the paraxial portion thereof, and the curvature of the meridional cross-section changes from a positive value to a negative value in an area within 75% of an effective aperture from the paraxial portion toward the periphery of the aspherical surface.

公开(公告)号：US20170068078A1

公开(公告)日：2017-03-09

申请号：US15240454

申请日：2016-08-18

Applicant: HOYA CORPORATION

Inventor： Yutaka TAKAKUBO ,  Eijiroh TADA

IPC: G02B15/177 ,  G02B13/00

CPC classification number: G02B15/177 ,  G02B5/005 ,  G02B9/34 ,  G02B13/004 ,  G02B13/0045 ,  G02B13/0065 ,  G02B13/009 ,  G02B13/04 ,  G02B13/18 ,  G02B15/14 ,  G02B15/24

Abstract: A zoom optical system includes a negative first lens group having a first deflection optical element, a positive second lens group, a positive third lens group, a positive fourth lens group, and a second deflection optical element, in that order from the object side. The first lens group is provided at a fixed position relative to an imaging plane. Zooming is performed by moving at least the second and third lens groups so that distances between adjacent lens groups of the first through fourth lens groups change. The third lens group is a focusing lens group which moves along the optical axis during focusing. The following condition (1) is satisfied: 0.2

Abstract translation: 其中f3表示第三透镜组的焦距，f4表示第四透镜组的焦距。