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    • 1. 发明授权
    • Lens mount
    • 镜头座
    • US5739962A
    • 1998-04-14
    • US551144
    • 1995-10-31
    • Yasuo AsakuraMitsuhiro SatoShinya TakahashiKeita Takahashi
    • Yasuo AsakuraMitsuhiro SatoShinya TakahashiKeita Takahashi
    • G02B7/10G02B15/14
    • G02B7/10
    • A lens assembly includes a third lens group frame having an end face extending in an optical-axis direction and provided with an end-face cam having displacement along a peripheral direction, for retaining a third group of lenses, a second lens group frame having a cam follower abutted against the end-face cam for retaining a second group of lenses, a second lens group spring for biasing the second lens group frame toward the third lens group frame, rotational regulator for regulating rotation of one of the third lens group frame and the second lens group frame around an optical axis, and a rotator for rotating the other of the third lens group frame and the second lens group frame around an optical axis when zoom operation is performed, wherein the end-face cam and a cam follower are operated by relative angular movement of the third lens group frame and the second lens group frame, around the optical axis at the time the zoom operation is performed to modify spacing therebetween in the optical-axis direction.
    • 一种透镜组件包括:第三透镜组框架,其具有在光轴方向上延伸的端面,并且设置有沿着周向方向移位的端面凸轮,用于保持第三组透镜;第二透镜组框架,具有 凸轮从动件抵靠在端面凸轮上,用于保持第二组透镜,用于将第二透镜组框架偏向第三透镜组框架的第二透镜组弹簧,用于调节第三透镜组框架之一的旋转的旋转调节器和 围绕光轴的第二透镜组框架和用于在执行变焦操作时围绕光轴旋转第三透镜组框架和第二透镜组框架中的另一个的旋转器,其中端面凸轮和凸轮从动件是 通过第三透镜组框架和第二透镜组框架的相对角度运动来执行在进行变焦操作时在光轴周围以在t 他的光轴方向。
    • 2. 发明授权
    • Camera
    • 相机
    • US5732297A
    • 1998-03-24
    • US498583
    • 1995-07-06
    • Nobuyuki TanakaYasuo AsakuraYuji KobayashiMasatoshi SatoKeita Takahashi
    • Nobuyuki TanakaYasuo AsakuraYuji KobayashiMasatoshi SatoKeita Takahashi
    • G03B13/10G03B17/00G03B17/24
    • G03B13/10
    • A camera for setting the aspect ratio of a photographic image plane and recording information of the set aspect ratio has a full-size frame defining a full-size finder image plane corresponding to a photographing image plane, a vertical mask for vertical trimming of the finder image plane, a lateral mask for lateral trimming of the finder image plane, a shaft supporting the masks, and a camshaft with a cam groove engaged by each of the masks. The masks are moved along the shaft by rotating the camshaft. The visual field range of the finder image plane is changed among a plurality of states corresponding to different aspect ratios. The camera finder visual field frame switching mechanism consists of: a vertical mask for vertical trimming, lateral mask for lateral trimming, cam gear having a cam, vertically movable mask operating member, a vertical trimming switch detecting vertical-mask trimming movement, which is aspect ratio information, and a lateral trimming switch detecting lateral-mask trimming movement positional information which is also aspect ratio information. Another embodiment is provided with a vertical mask for vertical trimming of a finder image plane and a lateral mask for lateral trimming of the finder image plane, which, after the vertical mask retreats from a vertical trimming position, moves the lateral mask to a lateral trimming position. After the lateral mask retreats from the lateral trimming position, the vertical mask is moved to the vertical trimming position.
    • 用于设置摄影图像平面的纵横比和设定的纵横比的记录信息的相机具有定义与拍摄图像平面相对应的全尺寸取景器图像平面的全尺寸框架,用于垂直修整取景器的垂直蒙版 图像平面,用于取向器图像平面的横向修整的侧面掩模,支撑掩模的轴以及具有由每个掩模接合的凸轮槽的凸轮轴。 通过旋转凸轮轴使掩模沿着轴移动。 取景器图像平面的视场范围在对应于不同宽高比的多个状态中改变。 摄像机视野框架切换机构包括:用于垂直修剪的垂直掩模,用于侧向修剪的侧面掩模,具有凸轮的凸轮齿轮,可垂直移动的掩模操作构件,垂直修剪开关检测垂直掩模修整运动,其是方面 以及横向微调开关,其检测也是宽高比信息的侧面掩模修剪移动位置信息。 另一实施例设置有用于垂直修整取景器图像平面的垂直掩模和用于取景器图像平面的侧向修整的侧面掩模,其在垂直掩模从垂直修剪位置退回之后将侧向掩模移动到侧向修整 位置。 在外侧面罩从侧向修剪位置退避之后,垂直掩模移动到垂直修剪位置。
    • 3. 发明授权
    • Camera
    • 相机
    • US5678093A
    • 1997-10-14
    • US636138
    • 1996-04-18
    • Yasuo AsakuraSetsuya KataokaYoshihiro MaedaKeita Takahashi
    • Yasuo AsakuraSetsuya KataokaYoshihiro MaedaKeita Takahashi
    • G03B13/12G03B13/14G03B17/42G03B13/10G03B17/00
    • G03B13/12G03B13/14G03B17/425
    • A camera having: a substantially cylindrical-shaped, rotatable cam, limited to rotate unidirectionally. A drive belt conveys rotation of the rotary member, which rotates due to zooming of lens array, to drive the cam. A viewfinder optical system including a stationary objective lens, two prisms, a stationary eyepiece lens, and two variable-power lenses, when coupled with the cam member, advances or withdraws along the optical-axis during movement. An eyepiece variable-power lens is inserted into the optical path of the viewfinder optical system. A viewfinder panoramic field mask is united with an eyepiece variable-power lens. Upper and lower masks change picture size. A first rack extends in a moving direction of the masks. A second rack extends in a moving direction of the viewfinder panoramic field mask. A panoramic-mode setting gear engages the two racks. A plurality of panoramic-mode parallax compensation marks appear at a trimmed range position within the viewfinder field mask. Normal picture size-mode parallax compensation marks are removed from the field during a high power. A viewfinder objective lens sliding axis pin retained by the objective lens or first prism, guides the two variable-power lenses along the optical axis. One end of a viewfinder lens base retained by the stationary objective lens or first prism, has a ditch restraining rotation of the two variable-power lenses about the viewfinder objective lens sliding axis.
    • 具有:大致圆筒形的可旋转凸轮的相机,其被限制为单向旋转。 驱动带传送旋转构件的旋转,旋转构件由于透镜阵列的变焦而旋转,以驱动凸轮。 当与凸轮构件联接时,包括固定物镜,两个棱镜,固定目镜和两个可变功率透镜的取景器光学系统在运动期间沿着光轴前进或退出。 将目镜可变功率透镜插入取景器光学系统的光路中。 取景器全景场景面罩与目镜可变功率镜头相结合。 上下掩模改变图片大小。 第一机架沿掩模的移动方向延伸。 第二个机架在取景器全景场景面罩的移动方向上延伸。 全景模式设置齿轮啮合两个机架。 多个全景模式视差补偿标记出现在取景器字段掩码内的修剪范围位置。 在大功率期间,正常图像尺寸模式的视差补偿标记从场中移除。 由物镜或第一棱镜保持的取景器物镜滑动轴销沿着光轴引导两个可变功率透镜。 由固定物镜或第一棱镜保持的取景器透镜基座的一端具有围绕取景器物镜滑动轴线限制两个可变光焦度透镜的沟槽的沟槽。
    • 4. 发明授权
    • Lens mount
    • 镜头座
    • US5661609A
    • 1997-08-26
    • US269641
    • 1994-06-30
    • Yasuo AsakuraMitsuhiro SatoShinya TakahashiKeita Takahashi
    • Yasuo AsakuraMitsuhiro SatoShinya TakahashiKeita Takahashi
    • G02B7/10G02B7/02
    • G02B7/10
    • A lens assembly includes a third lens group frame having an end face extending in an optical-axis direction provided with an end-face cam having displacement along a peripheral direction, for retaining a third group of lenses, a second lens group frame having a cam follower abutted against the end-face cam for retaining a second group of lenses, a second lens group spring for biasing the second lens group frame toward the third lens group frame, a rotational regulating for regulator rotation of one of the third lens group frame and the second lens group frame around an optical axis, and rotator for rotating the other of the third lens group frame and the second lens group frame around an optical axis when zoom operation is performed, wherein the end-face cam and a cam follower are operated by relative angular movement of the third lens group frame and the second lens group frame, around the optical axis at the time the zoom operation is performed to modify spacing therebetween in the optical-axis direction.
    • 一种透镜组件包括:第三透镜组框架,其具有沿光轴方向延伸的端面,该端面设置有沿着周向方向移位的端面凸轮,用于保持第三组透镜;第二透镜组框架,具有凸轮 用于保持第二组透镜的端面凸轮的随动件,用于将第二透镜组框架朝向第三透镜组框架偏置的第二透镜组弹簧,用于第三透镜组框架中的一个的调节器旋转的旋转调节 围绕光轴的第二透镜组框架,以及用于当执行变焦操作时围绕光轴旋转第三透镜组框架和第二透镜组框架中的另一个的旋转器,其中端面凸轮和凸轮从动件被操作 通过第三透镜组框架和第二透镜组框架的相对角度运动,在执行变焦操作时围绕光轴修改在o的间隔 双轴方向。
    • 5. 发明授权
    • Camera
    • 相机
    • US5727245A
    • 1998-03-10
    • US273702
    • 1994-07-12
    • Yasuo AsakuraSetsuya KataokaYoshihiro MaedaKeita Takahashi
    • Yasuo AsakuraSetsuya KataokaYoshihiro MaedaKeita Takahashi
    • G03B13/12G03B13/14G03B17/42G03B17/00G03B13/10
    • G03B13/12G03B13/14G03B17/425
    • A camera having: a viewfinder optical system including a stationary objective lens, first and second prisms, a stationary eyepiece lens, and first and second variable-power lenses, that advance or withdraw in the optical-axis direction responsive to zooming movement of a photographing lens array, a viewfinder structure member for retaining the viewfinder optical system, an eyepiece variable-power lens inserted into the optical path of the viewfinder optical system, a viewfinder panoramic field mask united with an eyepiece variable-power lens frame for retaining the eyepiece variable-power lens, a lens constraining spring that, when the viewfinder panoramic field mask is inserted into the optical path of the viewfinder optical system, constrains the eyepiece variable-power lens to abut against the viewfinder structure member for accurate positioning, upper and lower interceptive masks for changing picture size, a first rack extending in a direction in which the interceptive masks move, a second rack extending in a direction in which the viewfinder panoramic field mask moves, a panoramic-mode setting gear engaging the first and second racks, and a viewfinder objective lens sliding axis pin having one end retained by the stationary objective lens or first prism to guide movement of the first and second variable-power lenses along the optical axis.
    • 一种相机,具有:取景器光学系统,包括固定物镜,第一和第二棱镜,固定目镜,以及第一和第二可变光焦度透镜,其响应于拍摄的变焦运动而沿光轴方向前进或退出 透镜阵列,用于保持取景器光学系统的取景器结构构件,插入取景器光学系统的光路中的目镜可变功率透镜,与目镜可变功率透镜框结合的取景器全景场屏蔽罩,用于保持目镜变量 透镜约束弹簧,当取景器全景场景掩模被插入到取景器光学系统的光路中时,限制目镜可变功率透镜抵靠取景器结构构件以进行精确定位,上下截距 用于改变图像尺寸的掩模,在截取掩模移动的方向上延伸的第一个机架, 在取景器全景场掩模移动的方向上延伸的第二齿条,与第一和第二齿条接合的全景模式设定齿轮,以及具有由固定物镜或第一棱镜保持的一端的取景器物镜滑动轴销, 引导第一和第二可变功率透镜沿着光轴移动。
    • 10. 发明授权
    • Camera
    • 相机
    • US06213654B1
    • 2001-04-10
    • US09542388
    • 2000-04-04
    • Hideaki KumeTakaaki UeMasatoshi SatoYasuo Asakura
    • Hideaki KumeTakaaki UeMasatoshi SatoYasuo Asakura
    • G03B502
    • G03B17/04
    • A camera comprises a fixed lens barrel including a moving lens barrel movable to a collapsed position for non-photography and to a thrust position for photography, and a lens cover capable of pivoting with support shafts, which lie parallel to a plane substantially perpendicular to the optical axis of a photography lens, as a center so as to move to a closed position at which at least part of the face of the photography lens is shielded and to an open position at which the face of the photography lens is exposed. When the lens cover is open, if an external force is applied in a direction in which the lens cover is further opened, the lens cover comes off from the support shafts. The support shafts are formed with two shaft members whose distal portions are formed with tapered surfaces and which are constrained to move in directions in which they are separated from each other. The support shafts are mounted on a member which allows the support shafts to move along the optical axis of the photography lens.
    • 照相机包括固定透镜镜筒,该透镜镜筒包括可移动到可拍摄的非拍摄的折叠位置的运动透镜镜筒和用于摄影的推力位置的透镜镜筒,以及能够与支撑轴枢转的透镜盖,该支架轴平行于基本垂直于 摄影透镜的光轴作为中心,以便移动到遮光摄影镜片的至少一部分面部的关闭位置和摄影镜片的面部露出的打开位置。 当透镜盖打开时,如果在透镜盖进一步打开的方向上施加外力,则透镜盖从支撑轴脱离。 支撑轴形成有两个轴构件,其远侧部分形成有锥形表面,并且被限制为在它们彼此分离的方向上移动。 支撑轴安装在允许支撑轴沿着摄影镜头的光轴移动的构件上。