-
公开(公告)号：US10884316B2
公开(公告)日：2021-01-05
申请号：US16135016
申请日：2018-09-19
Applicant: CANON DENSHI KABUSHIKI KAISHA
Inventor： Takahito Yoshizawa , Hironori Komiya
Abstract: A light amount adjusting device includes an opening forming member configured to form an opening portion through which light passes, a blade group configured to move on the opening forming member and form a part of a light passing opening in the opening portion, and a power transmission member arranged outside the opening portion and engaging with the blade group to transmit power. The blade group includes a straight blade configured to move linearly and a swing blade configured to swing from both sides in a straight-ahead operation of the straight blade toward a center of the light passing opening. An edge portion of the light passing opening on a side of the power transmission member or an edge portion on a side opposite to the side of the power transmission member is formed by the blade group.
-
公开(公告)号：US20190137845A1
公开(公告)日：2019-05-09
申请号：US16241096
申请日：2019-01-07
Applicant: CANON DENSHI KABUSHIKI KAISHA
Inventor： Takahito Yoshizawa , Yusuke Inui , Yasutaka Morikoshi , Shinya Nakawaki , Satoru Yajima , Yoshiyuki Koyama
Abstract: A blade driving device includes an opening forming member forming an opening portion, a pivotal member pivoting about the opening portion, blades configured to enter or exit from the opening portion upon receiving power transmitted from the pivotal member, a cover member arranged so that the pivotal member and the plurality of blades are located between the cover and the opening forming member, and engaging portions engaging the of blades with the opening forming member. The pivotal member comes into slidable contact with the engaging portions in a process of pivoting. A pivotal position of the pivotal member with respect to the opening forming member is defined by the engaging portions.
-
公开(公告)号：US10649309B2
公开(公告)日：2020-05-12
申请号：US16241096
申请日：2019-01-07
Applicant: CANON DENSHI KABUSHIKI KAISHA
Inventor： Takahito Yoshizawa , Yusuke Inui , Yasutaka Morikoshi , Shinya Nakawaki , Satoru Yajima , Yoshiyuki Koyama
Abstract: A blade driving device includes an opening forming member forming an opening portion, a pivotal member pivoting about the opening portion, blades configured to enter or exit from the opening portion upon receiving power transmitted from the pivotal member, a cover member arranged so that the pivotal member and the plurality of blades are located between the cover and the opening forming member, and engaging portions engaging the of blades with the opening forming member. The pivotal member comes into slidable contact with the engaging portions in a process of pivoting. A pivotal position of the pivotal member with respect to the opening forming member is defined by the engaging portions.
-
公开(公告)号：US10209605B2
公开(公告)日：2019-02-19
申请号：US15819135
申请日：2017-11-21
Applicant: CANON DENSHI KABUSHIKI KAISHA
Inventor： Takahito Yoshizawa , Yusuke Inui , Yasutaka Morikoshi , Shinya Nakawaki , Satoru Yajima , Yoshiyuki Koyama
Abstract: A blade driving device includes an opening forming member forming an opening portion, a pivotal member pivoting about the opening portion, blades configured to enter or exit from the opening portion upon receiving power transmitted from the pivotal member, a cover member arranged so that the pivotal member and the plurality of blades are located between the cover and the opening forming member, and engaging portions engaging the of blades with the opening forming member. The pivotal member comes into slidable contact with the engaging portions in a process of pivoting. A pivotal position of the pivotal member with respect to the opening forming member is defined by the engaging portions.
-
5.发明申请公开(公告)号：US20150346583A1
公开(公告)日：2015-12-03
申请号：US14823182
申请日：2015-08-11
Applicant: CANON DENSHI KABUSHIKI KAISHA
Inventor： Takahito Yoshizawa , Kyousuke Miyashita
Abstract: A device according to the present invention includes at least one first light amount adjustment blade moving rectilinearly in a direction crossing a light passage direction and at least one second light amount adjustment blade pivoting within a plane crossing the light passage direction. When a light passage aperture of a polygonal shape formed by annularly superposing the first light amount adjustment blade and the second light amount adjustment blade is enlarged, a shape of the light passage aperture comes close to a circular shape from a polygonal shape.
Abstract translation: 根据本发明的装置包括至少一个在与光通过方向交叉的方向上直线运动的第一光量调节片和在与光通过方向交叉的平面内枢转的至少一个第二光量调节片。 当通过环形地叠置第一光量调节片和第二光量调节片形成的多边形的光通过孔被放大时，光通过孔的形状从多边形接近圆形。
-
Patent Agency Ranking
公开(公告)号：US20150160533A1
公开(公告)日：2015-06-11
申请号：US14624734
申请日：2015-02-18
Applicant: CANON DENSHI KABUSHIKI KAISHA
Inventor： Takahito Yoshizawa
IPC: G03B9/06
CPC classification number: G03B9/06
Abstract: A light-quantity control apparatus includes multiple light-quantity control blades each configured to overlap with at least another one of the light-quantity control blades so as to form a light-passing aperture and each configured to rotate to change a size of the light-passing aperture. Each of the multiple light-quantity control blades includes a thick portion and a thin portion. The thick portion forms an outer end portion on an opposite side to the light-passing aperture in a rotation direction of the light-quantity control blade. The thin portion is formed in an aperture side blade area that overlaps with the at least another one of the multiple light-quantity control blades so as to form part of a circular overlap of the multiple light-quantity control blades and that includes an inner edge forming an edge of the light-passing aperture.
Abstract translation: 光量控制装置包括多个光量控制刀片，每个光量控制刀片被配置为与至少另一个光量控制刀片重叠以形成通光孔，并且每个配置成旋转以改变光的尺寸 通孔。 多个光量控制叶片中的每一个包括厚部分和薄部分。 厚部在光通量孔的与光量控制叶片的旋转方向相反的一侧上形成外端部。 薄壁部分形成在与多个光量控制刀片中的至少另一个重叠的孔侧刀片区域中，以形成多个光量控制刀片的圆形重叠部分，并且包括内边缘 形成通光孔的边缘。
-
公开(公告)号：US20180180971A1
公开(公告)日：2018-06-28
申请号：US15899491
申请日：2018-02-20
Applicant: CANON DENSHI KABUSHIKI KAISHA
Inventor： Takahito Yoshizawa , Mitsuo Shibata
Abstract: A blade driving device includes an opening forming member, and a plurality of groups of blades that are pivotably disposed in a ring form around an opening portion of the opening forming member. The plurality of groups of blades include a first group of blades and a second group of blades, in a process of changing from a first circular light passage opening formed by the first group to a second circular light passage opening formed by the second group, the first group that is adjacent to the second group and has finished forming the first circular light passage opening remains in the opening portion, thereby acting to substantially suppressing warp, in an optical axis direction, of the second group that forms the second circular light passage opening on an inner side thereof.
-
公开(公告)号：USD800203S1
公开(公告)日：2017-10-17
申请号：US29560302
申请日：2016-04-05
Applicant: Canon Denshi Kabushiki Kaisha
Designer： Takahito Yoshizawa
-
9.发明授权公开(公告)号：US09366941B2
公开(公告)日：2016-06-14
申请号：US14823182
申请日：2015-08-11
Applicant: CANON DENSHI KABUSHIKI KAISHA
Inventor： Takahito Yoshizawa , Kyousuke Miyashita
Abstract: A device according to the present invention includes at least one first light amount adjustment blade moving rectilinearly in a direction crossing a light passage direction and at least one second light amount adjustment blade pivoting within a plane crossing the light passage direction. When a light passage aperture of a polygonal shape formed by annularly superposing the first light amount adjustment blade and the second light amount adjustment blade is enlarged, a shape of the light passage aperture comes close to a circular shape from a polygonal shape.
Abstract translation: 根据本发明的装置包括至少一个在与光通过方向交叉的方向上直线运动的第一光量调节片和在与光通过方向交叉的平面内枢转的至少一个第二光量调节片。 当通过环形地叠置第一光量调节片和第二光量调节片形成的多边形的光通过孔被放大时，光通过孔的形状从多边形接近圆形。
-
公开(公告)号：US09007671B2
公开(公告)日：2015-04-14
申请号：US13774548
申请日：2013-02-22
Applicant: Canon Denshi Kabushiki Kaisha
Inventor： Takahito Yoshizawa , Kimio Handa
Abstract: The light-quantity control apparatus includes a base member having an opening allowing light to pass therethrough, a first aperture blade movable in a direction orthogonal to a light passing direction, a second aperture blade rotatable in a surface orthogonal to the light passing direction, and a driving lever to be rotated by a driver to drive the first and second aperture blades. The base member has a protruding portion engaging with a groove portion provided in the first aperture blade, the second aperture blade has a driving cam groove portion with which a driving pin provided in the driving lever slidably engages and a rotation center hole portion with which the protruding portion engages. The second aperture blade is rotated about the protruding portion by sliding of the driving pin with respect to the driving cam groove portion with rotation of the driving lever.
Abstract translation: 光量控制装置包括具有允许光通过的开口的基座构件，能够在与光通过方向正交的方向上可移动的第一孔眼刀片，可在与光通过方向正交的表面中旋转的第二孔眼刀片，以及 驱动杆，由驱动器旋转以驱动第一和第二孔径叶片。 基部件具有与设置在第一孔眼刀片中的槽部接合的突出部分，第二孔径刀片具有驱动凸轮槽部分，驱动杆设置在驱动杆中的驱动销可滑动地接合;旋转中心孔部分， 突出部接合。 通过驱动杆的旋转，驱动销相对于驱动凸轮槽部滑动，第二孔径叶片围绕突出部旋转。
-
-
-
-
-
-
-
-
-
Search Results
17
records
(took 0.016 seconds)
