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公开(公告)号：US20160088217A1
公开(公告)日：2016-03-24
申请号：US14959906
申请日：2015-12-04
申请人： FUJIFILM Corporation
发明人： Yoshitaka MORI
CPC分类号： H04N5/23212 , G02B7/09 , G02B7/282 , G02B7/343 , G02B7/36 , G02B7/38 , G02B27/123 , G02B27/16 , G03B13/36 , G03B33/12 , G03B2217/002 , H04N5/2253 , H04N5/2254
摘要： The purpose of the present invention is to reduce the size of an image pick-up lens unit. A part of a bundle of rays representing subject optical images is deflected vertically downward by a polarization prism, and is further deflected forwards by a total reflection mirror. A bundle of rays totally reflected by the total reflection mirror is split in three directions by a tri-directional splitting prism. The bundle of rays, which is split in three directions, is incident on a first optical-path-length-difference image pick-up element, a second optical-path-length-difference image pick-up element, and a phase-difference image pick-up element included in a phase-difference AF optical system. Auto focus (AF) is performed on the basis of the optical path length difference from signals obtained from the optical-path-length-difference image pick-up elements, and AF is performed on the basis of the phase difference from a signal obtained from the phase-difference image pick-up element. Since the phase-difference AF optical system is disposed so as to be parallel to the axis of the light forming the subject optical images, the size of the image pick-up lens unit can be reduced.
摘要翻译： 本发明的目的是减小图像拾取透镜单元的尺寸。 代表主题光学图像的一束光线的一部分由偏振棱镜垂直向下偏转，并且被全反射镜向前偏转。 由全反射镜全反射的一束光线通过三向分束棱镜在三个方向上被分离。 沿三个方向分裂的光束束入射在第一光路长度差图像拾取元件，第二光路长度差图像拾取元件和相位差 图像拾取元件包括在相差AF光学系统中。 基于与从光路长度差分摄像元件获得的信号的光程长度差进行自动聚焦（AF），并且根据与从光路长度差图像拾取元件获得的信号的相位差进行AF 相位差图像拾取元件。 由于相位差AF光学系统被设置为平行于形成目标光学图像的光的轴线，因此可以减小图像拾取透镜单元的尺寸。
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公开(公告)号：US20190011662A1
公开(公告)日：2019-01-10
申请号：US16131060
申请日：2018-09-14
申请人： FUJIFILM Corporation
摘要： There are provided a variable magnification optical system and a control method thereof which are capable of relatively accurately adjusting a positional relationship between a variable magnification optical device and an imaging surface of an imaging device according to a zoom amount. A zoom lens included in the variable magnification optical device is positioned at a telephoto end and a wide angle end, and shift amounts ΔS1 and ΔS2, tilt angles θ1 and θ2, rotation angles ϕ1 and ϕ2, and focusing adjustment amounts Δ1 and Δ2 of the variable magnification optical device are set by a user and are stored. In a case where a zoom amount of the zoom lens is set to a desired value by the user, a shift amount corresponding to the set zoom amount is calculated by using the stored shift amounts ΔS1 and ΔS2. The positional relationship between the variable magnification optical device and the imaging surface of the imaging device is adjusted so as to have the calculated shift amount.
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公开(公告)号：US20240353533A1
公开(公告)日：2024-10-24
申请号：US18760113
申请日：2024-07-01
申请人： FUJIFILM CORPORATION
发明人： Kouhei AWAZU , Yoshitaka MORI , Tsuyoshi MITARAI
IPC分类号： G01S7/481
CPC分类号： G01S7/4811 , G01S7/4817
摘要： A distance measurement device includes a light source that emits scanning light, a light receiving sensor that receives returning light, an incidence and emission window that has an annular shape centered at a reference axis set in advance and that is capable of omnidirectionally emitting the scanning light about the reference axis and capable of receiving the incident returning light, a light deflector that includes a movable mirror portion which reflects the scanning light from the light source toward the incidence and emission window and which reflects the returning light from the incidence and emission window toward the light receiving sensor, and that changes a direction of the scanning light by changing a posture of a movable reflection surface, and a relay optical system that relays the scanning light and the returning light between the movable mirror portion and each of the light source and the light receiving sensor.
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