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公开(公告)号：US11860510B2
公开(公告)日：2024-01-02
申请号：US18060662
申请日：2022-12-01
发明人： Fumihiro Shinobu
摘要： An observation device according to the present invention includes an image display element displaying an image, and a finder optical system used for observing the image displayed on an image display surface of the image display element. The finder optical system includes a positive first lens, a negative second lens, and a biconvex positive third lens arranged in this order from the image display surface side to the observation side. A focal length of the second lens, a focal length of the finder optical system, a curvature radius of a lens surface of the second lens on the image display surface side, a curvature radius of a lens surface of the second lens on the observation side, a diagonal length of the image display surface, and a curvature radius of a lens surface of the third lens on the image display surface side are appropriately set.
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公开(公告)号：US20230324767A1
公开(公告)日：2023-10-12
申请号：US18178318
申请日：2023-03-03
申请人： FUJIFILM Corporation
CPC分类号： G03B13/06 , G02B15/142
摘要： Provided is a finder device capable of preventing dust on a display surface of a display element and reducing an influence of heat which is generated from the display element on an optical system.
An EVF 1 includes: an optical system 20 that includes a display element 10, a first lens group G1 disposed in order from the display element 10 side, and a second lens group G2; a first holding frame 30 that holds the display element 10 and the first lens group G1 to seal a space between the display element 10 and the first lens group G1; a second holding frame that holds the second lens group G2; and a diopter adjustment unit 50 that adjusts a diopter by integrally moving the display element 10 and the first lens group G1 relative to the second lens group G2.-
公开(公告)号：US10126099B1
公开(公告)日：2018-11-13
申请号：US15592536
申请日：2017-05-11
发明人： Marc R. Hammond , Robert J. Kogut , Adam Pasternak
IPC分类号： F41G1/35 , F41G1/34 , H04N5/33 , H04N5/232 , H04N5/278 , G02B23/12 , G03B13/06 , F41G3/16 , F41G1/38
CPC分类号： F41G1/345 , F41G1/30 , F41G1/32 , F41G1/38 , F41G3/165 , F41G3/326 , G02B23/12 , G03B13/06 , H04N5/23293 , H04N5/278 , H04N5/332
摘要： A reflex sight comprises two apertures. One aperture is a direct view optical path of the target scene. The other aperture is a digital (e.g., thermal) camera or image intensifier. A beam combiner with two reflective surfaces (for example, a Bauernfeind, Penta, or other prism bonded to a wedge prism) and afocal eyepiece optics overlay the digital image or intensified image onto the direct view scene with matched magnification.
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公开(公告)号：US20180227497A1
公开(公告)日：2018-08-09
申请号：US15940050
申请日：2018-03-29
申请人： FUJIFILM Corporation
发明人： Kosuke TAKAHASHI , Atsushi MISAWA
CPC分类号： H04N5/23293 , G02B7/34 , G02B7/36 , G02B27/0093 , G03B13/06 , G03B13/16 , G03B13/32 , G03B17/20 , H04N5/22525 , H04N5/23212 , H04N5/232122 , H04N5/23219 , H04N5/232939 , H04N5/232941 , H04N5/232945
摘要： The digital camera includes a finder section, an imaging optical system, a focus ring, an eye sensor, an imaging element, a main control section, a digital signal processing section, and a finder display control section. The imaging element outputs first and second imaging signals obtained by receiving the first and second rays formed by performing pupil division on the subject image. The main control section calculates an amount of defocus so as to generate a defocus image, on the basis of first and second imaging signals obtained by receiving first and second rays. The eye sensor detects an eye position P of a photographer who is in contact with the finder section. The finder display control section changes a position, at which the defocus image is displayed, in accordance with the direction of shift of the eye position P.
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公开(公告)号：US20180224723A1
公开(公告)日：2018-08-09
申请号：US15887750
申请日：2018-02-02
发明人： Kento Inai
CPC分类号： G03B17/20 , G02B7/28 , G02B7/34 , G02B7/36 , G03B13/06 , G03B13/36 , G03B17/02 , H04N5/232 , H04N5/23212 , H04N5/23216 , H04N5/235
摘要： An electronic apparatus includes a touch detection unit that detects a touch operation on a touch panel, a selection unit that selects positions on a display unit via a touch operation on the touch panel, and a control unit that controls the selection unit, wherein, in a case where a touch position movement is performed on the touch panel, the control unit controls the selection unit to select, from among positions of a plurality of selective candidates on the display unit existing in a direction of the touch position movement from a starting position of the touch position movement to a touch position at a first timing, positions based on a touch position movement up to a second timing after the first timing.
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公开(公告)号：US09753271B2
公开(公告)日：2017-09-05
申请号：US15062078
申请日：2016-03-05
申请人： Nikon Corporation
发明人： Issei Tanaka , Hiroki Harada , Taku Matsuo
IPC分类号： G02B25/00 , G02B23/14 , G02B27/00 , G02B13/18 , G03B13/08 , G02B1/11 , G02B9/12 , G02B1/115 , G03B13/06 , G02B9/56
CPC分类号： G02B25/001 , G02B1/11 , G02B1/115 , G02B9/12 , G02B9/56 , G02B13/18 , G02B23/14 , G02B27/0018 , G03B13/06 , G03B13/08
摘要： An eyepiece lens (EL) used for a viewfinder optical system (VF) for viewing, using the eyepiece lens (EL), an image formed by an objective lens (OL), an image displayed by a display member, or an object, wherein an antireflection coating (101) is disposed on at least one surface among the optical surfaces constituting the eyepiece lens (EL), and the antireflection coating (101) includes at least one layer (101g) formed by a wet process.
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7.发明授权公开(公告)号：US09753246B2
公开(公告)日：2017-09-05
申请号：US14675790
申请日：2015-04-01
申请人： Nikon Corporation
发明人： Taku Matsuo
IPC分类号： G02B9/16 , G02B25/00 , G03B13/00 , H04N5/225 , H04N5/232 , G02B9/34 , G02B13/18 , G03B13/06 , G02B13/00
CPC分类号： G02B9/16 , G02B9/34 , G02B13/0035 , G02B13/18 , G02B25/001 , G03B13/06 , H04N5/2254 , H04N5/23216 , Y10T29/49826
摘要： Provided is an eyepiece optical system including, in order from an observation object (Ob): a first lens (L11) having positive refractive power; a second lens (L12) which has negative refractive power and of which an observation object (Ob) side lens surface is concave; and a third lens (L13) which has positive refractive power and of which an eye point (EP) side lens surface is convex. The third lens (L13) is fixed on the optical axis with respect to the observation object (Ob) when adjusting the diopter, and the following conditional expressions are satisfied: 0.65
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公开(公告)号：US20170026579A1
公开(公告)日：2017-01-26
申请号：US15287709
申请日：2016-10-06
申请人： FUJIFILM Corporation
发明人： Tomoyuki KAWAI , Shigeru KONDO , Kenshi IMAMURA , Kousuke IRIE , Hiroyuki OSHIMA
CPC分类号： H04N5/23245 , G03B13/06 , G03B13/08 , H04N5/23293 , H04N5/2351 , H04N5/2353
摘要： Provided is an imaging device that prevents glare resulting from light that leaks out from a subject display area of a display section in an OVF mode.A finder device can be switched between the OVF mode and an EVF mode. A subject display area and an information display area are set in an EVFLCD. In the OVF mode, nothing is displayed in the subject display area of the EVFLCD, and an information image is displayed in the information display area. An EVF shutter is set such that the light transmittance of a first area, which corresponds to the subject display area, becomes a low transmittance and the light transmittance of a second area, which corresponds to the information display area, becomes a high transmittance. The first area, which is set at low transmittance, blocks light that leaks from the subject display area.
摘要翻译： 取景器设备可以在OVF模式和EVF模式之间切换。 在EVFLCD中设置被摄体显示区域和信息显示区域。 在OVF模式下，EVFLCD的被摄体显示区域中不显示任何内容，在信息显示区域显示信息图像。 EVF快门被设置为使得对应于被摄体显示区域的第一区域的透光率变为低透射率，并且对应于信息显示区域的第二区域的透光率变为高透射率。 设置在低透射率的第一区域阻挡从被摄体显示区域泄漏的光。
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公开(公告)号：US20160309069A1
公开(公告)日：2016-10-20
申请号：US15131529
申请日：2016-04-18
申请人： mPerpetuo, Inc.
CPC分类号： H04N5/2256 , G03B13/06 , G03B15/05 , G03B31/00 , G03B2215/0567 , H04N5/2252 , H04N5/2257 , H04N5/23293
摘要： A digital camera includes an optical assembly and image sensor for capturing still and/or video images and displaying the images on a screen. The camera includes multiple LEDs and/or a rotatable lens mounted flash to provide illumination during image capture.
摘要翻译： 数码相机包括用于捕获静止图像和/或视频图像并在屏幕上显示图像的光学组件和图像传感器。 相机包括多个LED和/或可旋转的透镜安装的闪光灯，以在图像拍摄期间提供照明。
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公开(公告)号：US09417504B2
公开(公告)日：2016-08-16
申请号：US14291607
申请日：2014-05-30
申请人： FUJIFILM Corporation
发明人： Hiroki Saito
CPC分类号： G03B13/06 , G02B13/003 , G02B15/161 , G02B23/145 , G03B13/10 , H04N5/23296
摘要： The magnification of the variable magnification finder is switchable, and the finder includes a positive lens group, a negative lens group, and an eyepiece lens group in this order from an object side in a high magnification state. The positive lens group is retracted from an optical path of the variable magnification finder to the outside of the optical path and the negative lens group moves toward the object side when magnification is changed from the high magnification state to a low magnification state. The following conditional formula is satisfied when the focal length of the negative lens group is fN: −15 mm
摘要翻译： 可变倍率取景器的倍率可切换，并且取景器从高放大状态的物体侧依次包括正透镜组，负透镜组和目镜透镜组。 正透镜组从可变放大倍数取景器的光路缩回至光路外侧，而负透镜组在放大率从高放大状态变为低放大状态时向物体侧移动。 当负透镜组的焦距为fN：-15mm
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