公开(公告)号：US20110293258A1

公开(公告)日：2011-12-01

申请号：US13111076

申请日：2011-05-19

申请人： Hidekazu NAKAMURA

发明人： Hidekazu NAKAMURA

IPC分类号： G03B7/18

CPC分类号： G03B7/18

摘要： An optical apparatus includes a stop having an aperture, two filter members each including a first area that includes a transmissive part and a gradation part having a transmittance that is lower than the transmittance of the transmissive part and that is changed in a moving direction of the filter member, an actuator that drives the two filter members, and a controller that controls the actuator. The two filter members are disposed so that both changing directions of densities of the gradation part and moving directions are opposite and the first area has a size capable of covering a whole of a first aperture. The controller controls the actuator so as to always move in an area between a first position and a second position. The transmissive part has a size that is incapable of covering the whole of the first aperture.

摘要翻译： 一种光学装置，包括具有孔径的挡块，两个过滤构件，每个过滤构件包括第一区域和第二区域，所述第一区域包括透射部分和具有低于透射部分的透射率的透射率并且沿透射部分的移动方向变化的渐变部分 过滤构件，驱动两个过滤构件的致动器，以及控制致动器的控制器。 两个过滤器构件被设置成使得渐变部分和移动方向的密度的改变方向都相反，并且第一区域具有能够覆盖整个第一孔径的尺寸。 控制器控制致动器，以便始终在第一位置和第二位置之间的区域中移动。 透射部分具有不能覆盖整个第一光圈的尺寸。

公开(公告)号：US20110205420A1

公开(公告)日：2011-08-25

申请号：US13029376

申请日：2011-02-17

申请人： Hidekazu NAKAMURA

发明人： Hidekazu NAKAMURA

IPC分类号： H04N5/225

CPC分类号： H04N5/2254 ,  G03B11/00 ,  G03B17/02 ,  G03B17/12

摘要： The image pickup apparatus includes an image taking optical system, an optical filter into which the light from the image taking optical system enters, an image pickup element electrically converting the optical image formed by the light that has passed through the optical filter, an image pickup element holding member holding the image pickup element together with the optical filter, and a lens holding member holding an image surface side lens unit disposed closest to the optical filter. The lens and image pickup element holding members are moved relatively to each other in an optical axis direction, and include dust-proof walls that surround a space between the image surface side lens unit and the optical filter and mutually overlap in a direction orthogonal to the optical axis direction in an entire range where the lens and image pickup element holding members are relatively moved.

摘要翻译： 图像拾取装置包括图像拍摄光学系统，来自图像拍摄光学系统的光进入的滤光器，对通过滤光器的光形成的光学图像进行电转换的图像拾取元件，图像拾取器 与滤光器一起保持图像拾取元件的元件保持部件和保持最靠近滤光器设置的图像表面侧透镜单元的透镜保持部件。 透镜和图像拾取元件保持构件在光轴方向上相对移动，并且包括围绕图像表面侧透镜单元和滤光器之间的空间的防尘壁，并且在与 在透镜和图像拾取元件保持构件相对移动的整个范围内的光轴方向。

公开(公告)号：US20120019933A1

公开(公告)日：2012-01-26

申请号：US13185539

申请日：2011-07-19

申请人： Hidekazu NAKAMURA

发明人： Hidekazu NAKAMURA

IPC分类号： G02B7/04

CPC分类号： G02B7/102

摘要： A lens barrel includes a cam ring driving unit including a moving frame, a linear driving unit that includes a holding frame configured to hold an image pickup element, and a guide bar that is engaged with the holding frame, extends in the optical axis direction, and is configured to guide a linear movement of the holding frame in the optical axis direction, and an intermediate fixing lens unit configured still in the optical axis direction. The cam ring driving unit is arranged on an object side of the intermediate fixing lens unit, the linear driving unit is arranged on an image pickup element side of the intermediate fixing lens unit, and the lens barrel is configured dividable into the cam ring driving unit, the linear driving unit, and the intermediate fixing lens unit.

摘要翻译： 镜筒包括：凸轮环驱动单元，包括移动框架;线性驱动单元，其包括被构造成保持图像拾取元件的保持框架;以及导引杆，其与所述保持框架接合，沿光轴方向延伸; 并且被配置为引导保持框架在光轴方向上的线性运动，以及中间固定透镜单元，其仍然在光轴方向上构成。 凸轮环驱动单元布置在中间固定透镜单元的物体侧，线性驱动单元布置在中间固定透镜单元的图像拾取元件侧上，并且镜筒被配置成可分离到凸轮环驱动单元 线性驱动单元和中间固定透镜单元。