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公开(公告)号:US5294953A
公开(公告)日:1994-03-15
申请号:US3033
申请日:1993-01-13
申请人: Alan V. VanDeMoere
发明人: Alan V. VanDeMoere
摘要: A method and an apparatus are disclosed for bringing a portrait camera having a fixed-focus taking lens into coincidence with an optimum camera-to-subject distance appropriate for the lens regardless of differences in the size of a person's head to be photographed. According to the invention, a finder frame through which a person's head may be viewed can be set to one of several alternative settings corresponding to respective head sizes, for example small, medium and large, to select the particular setting that best matches the size of a person's head to be photographed at the optimum camera-to-subject distance. Then, the specific distance between the portrait camera and the person's head to be photographed is adjusted until the person's head, when viewed through the finder frame, appears to fill the finder frame.
摘要翻译: 公开了一种方法和装置,用于使具有固定焦点拍摄镜头的肖像相机与适合于镜头的最佳相机对被摄体距离一致,而不管要拍摄的人物头部的大小的差异。 根据本发明,可以将人的头部可以被看到的取景器框架可以被设置为对应于各个头部尺寸的几个替代设置中的一个,例如小,中等和大,以选择最匹配的尺寸的特定设置 一个人的头部以最佳的相机到拍摄对象的距离拍摄。 然后,调整肖像照相机和要被拍摄的人的头部之间的具体距离,直到通过取景器框架观察时人的头部似乎填满取景器框架。
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公开(公告)号:US4223989A
公开(公告)日:1980-09-23
申请号:US972061
申请日:1978-12-21
申请人: Yoshisada Hayamizu
发明人: Yoshisada Hayamizu
摘要: A focusing optical system for single-lens reflex cameras comprising a semi-transparent mirror, lens and reflecting mirror, which are arranged near an exit surface of a penta-prism, and a detector arranged near an external surface of the penta-prism, the focusing optical system for single-lens reflex cameras being arranged to reflect a part of light from the penta-prism by the semi-transparent mirror, to further reflect that light by the reflecting mirror after it passes through the lens and to detect that light by the detector after it passes through the lens again.
摘要翻译: 一种用于单透镜反光相机的聚焦光学系统,包括布置在五棱镜出射表面附近的半透明反射镜,透镜和反射镜以及布置在五棱镜外表面附近的检测器, 用于单镜头反光相机的聚焦光学系统被布置成通过半透明反射体从五棱镜反射一部分光,以在透镜之后通过反射镜反射该光,并通过反射镜检测该光,并通过 检测器再次通过镜头后。
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公开(公告)号:US1568759A
公开(公告)日:1926-01-05
申请号:US56426622
申请日:1922-05-27
申请人: WOLLENSAK OPTICAL CO
发明人: MAGIN JACOB G , ANDREW WOLLENSAK
IPC分类号: G03B13/16
CPC分类号: G03B13/16
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公开(公告)号:US20190219894A1
公开(公告)日:2019-07-18
申请号:US16243527
申请日:2019-01-09
发明人: Daiyu Ueno
CPC分类号: G03B13/16 , G03B13/36 , G03B17/14 , H04N5/2254 , H04N5/232933 , H04N5/232939
摘要: An imaging apparatus including a lens mount on which an interchangeable lens is mounted registers a position to which a focus adjustment position is moved when a specific operation is executed, determines a type of interchangeable lens mounted on the lens mount, and controls, when the specific operation is executed, switching the focus adjustment position to a position registered based on a determined type of mounted interchangeable lens regardless of the focus adjustment position before switching.
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公开(公告)号:US20180120534A1
公开(公告)日:2018-05-03
申请号:US15793944
申请日:2017-10-25
申请人: Olympus Corporation
发明人: Koh Mohri
摘要: In a focus adjustment method for an imaging apparatus, that, in order to focus on a single or a plurality of point light sources, acquires plurality of image data while moving a focus lens in an optical axis direction and carries out focus adjustment based on the image data, brightness values of pixels within a given evaluation region are detected based on the image data, high brightness evaluation values are calculated based on the brightness values, symmetry of the high brightness evaluation values are calculated for movement of the focus lens, and focus adjustment is carried out based on an extreme value calculated based on the symmetry.
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公开(公告)号:US09918014B2
公开(公告)日:2018-03-13
申请号:US15209294
申请日:2016-07-13
申请人: Sony Corporation
发明人: Yusuke Ichihara , Koji Kamiya
CPC分类号: H04N5/23293 , G03B13/16 , G03B13/18 , H04N5/23212
摘要: There is provided a camera apparatus including: a display signal generation unit that generates an index display signal for displaying an index indicative of a current focal position based on focal position information; and a combination unit that acquires an image signal for a viewfinder by combining a captured image signal with the index display signal.
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公开(公告)号:US09787891B2
公开(公告)日:2017-10-10
申请号:US14534389
申请日:2014-11-06
申请人: Sony Corporation
发明人: Koji Kamiya , Hiroaki Matsumura
CPC分类号: H04N5/23216 , G03B13/16 , G03B13/24 , G03B13/36 , H04N5/23203 , H04N5/23209 , H04N5/23212 , H04N5/23293
摘要: There is provided a focus control apparatus including: an information acquisition unit that acquires focal distance information of a predetermined position on a 2-dimensional map using the 2-dimensional map of focal distances; and a focus control unit that performs focus control based on the focal distance information which is acquired by the information acquisition unit.
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公开(公告)号:US09225893B2
公开(公告)日:2015-12-29
申请号:US13977504
申请日:2011-12-26
CPC分类号: H04N5/23212 , G02B7/09 , G02F1/1313 , G02F1/1347 , G02F2001/291 , G02F2001/294 , G02F2203/28 , G03B13/16 , H04N5/232
摘要: A liquid crystal lens optical body that is available to a rapid response, the liquid crystal lens optical body having a first liquid crystal lens in which a liquid crystal layer is held between first electrodes, the first liquid crystal lens changing optical power by controlling orientation condition of liquid crystal molecules based on an input signal to the electrodes, and a second liquid crystal lens in which a liquid crystal layer is held between second electrodes, the second liquid crystal lens changing optical power by controlling orientation condition of liquid crystal molecules based on the input signal to the electrodes, the first and second liquid crystal lenses provided on an optical axis. In each liquid crystal lens, a response characteristic when the optical power undergoes a transition from a large condition thereof to a small condition thereof is different from a response characteristic when the optical power undergoes a transition from a small condition thereof to a large condition thereof.
摘要翻译: 一种能够快速响应的液晶透镜光学体,具有第一液晶透镜的液晶透镜光学体,液晶层保持在第一电极之间,通过控制取向条件,第一液晶透镜改变光焦度 基于对电极的输入信号的液晶分子;以及第二液晶透镜,其中液晶层保持在第二电极之间,第二液晶透镜通过控制液晶分子的取向条件来改变光功率,基于 输入到电极的信号,第一和第二液晶透镜设置在光轴上。 在每个液晶透镜中,当光功率从其大的状态转变到其小的状态时的响应特性不同于当光功率从其小的状态转变到其大的状态时的响应特性。
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公开(公告)号:US20150138409A1
公开(公告)日:2015-05-21
申请号:US14604107
申请日:2015-01-23
申请人: FUJIFILM Corporation
发明人: Atsushi MISAWA , Hiroki SAITOU
CPC分类号: H04N5/23293 , G02B7/282 , G03B13/06 , G03B13/10 , G03B13/16 , G03B17/20 , H04N5/23212 , H04N5/335
摘要: An image obtained by superimposing the image of the subject, which is displayed on the display screen of an electronic viewfinder, upon the optical image of the subject can be seen by the user looking through a finder unit. Display position on the display screen of the electronic viewfinder is shifted so as to correct for parallax between the finder unit and the solid-state electronic image sensing device. When the image of the subject is in focus, the optical image of the subject and the electronically captured image of the subject coincide. When the image of the subject is not in focus, the optical image and the electronically captured image are offset from each other. Correct focus can be achieved while observing the extent of offset between these images of the subject through the finder unit.
摘要翻译: 用户通过取景器单元观察可以看到通过将显示在电子取景器的显示屏幕上的被摄体的图像叠加在被摄体的光学图像上而获得的图像。 偏移电子取景器的显示屏上的显示位置,以校正取景器单元和固态电子图像感测装置之间的视差。 当被摄体的图像处于焦点时,被摄体的光学图像和被摄体的电子捕获图像一致。 当被摄体的图像不在焦点时,光学图像和电子捕获图像彼此偏移。 在通过取景器单元观察被摄体的这些图像之间的偏移程度时,可以实现正确的对焦。
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公开(公告)号:US20140211050A1
公开(公告)日:2014-07-31
申请号:US14229207
申请日:2014-03-28
申请人: FUJIFILM Corporation
发明人: Fumio NAKAMARU
IPC分类号: H04N5/232
CPC分类号: H04N5/23293 , G03B13/16 , G03B17/20 , H04N5/23212
摘要: An imaging method includes setting a manual focus mode for moving a focus lens according to an operation of an operation unit, generating a contrast image, which is an image in which an edge of a taken image is enhanced or extracted, and superimposing and displaying, in the case of the manual focus mode, the contrast image on an optical image of the object in an optical finder.
摘要翻译: 一种成像方法包括根据操作单元的操作设置用于移动聚焦透镜的手动对焦模式,生成作为增强或提取拍摄图像的边缘的图像的对比度图像,以及叠加和显示, 在手动对焦模式的情况下,在光学取景器中的物体的光学图像上的对比度图像。
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