公开(公告)号：US09417441B2

公开(公告)日：2016-08-16

申请号：US14611699

申请日：2015-02-02

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kyoichi Miyazaki

IPC: G02B15/14 ,  G02B3/00 ,  G02B15/177 ,  G02B13/16 ,  G03B21/14 ,  G03B21/00

CPC classification number: G02B15/177 ,  G02B13/16 ,  G03B21/005 ,  G03B21/142

Abstract: A projection optical system, in order from a magnification side to a demagnification side, comprising a negative first lens unit, a positive second lens unit, a positive third lens unit, a fourth lens unit, a fifth lens unit, and a sixth lens unit, wherein the second and third lens units move along an optical axis in zooming, the first lens unit moves along the optical axis in focusing, and the conditions: −0.55

Abstract translation: 投影光学系统从放大侧到缩小侧依次包括负的第一透镜单元，正的第二透镜单元，正的第三透镜单元，第四透镜单元，第五透镜单元和第六透镜单元 其中第二透镜单元和第三透镜单元在变焦时沿光轴移动，第一透镜单元在聚焦时沿光轴移动，条件为：-0.55

公开(公告)号：US09291878B2

公开(公告)日：2016-03-22

申请号：US14576932

申请日：2014-12-19

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kyoichi Miyazaki

IPC: G02B13/04 ,  G03B17/14 ,  G02B9/64 ,  H04N5/225 ,  G02B27/42

CPC classification number: G03B17/14 ,  G02B9/64 ,  G02B27/4205 ,  H04N5/2254

Abstract: A single focal length lens system comprising at least a positive first lens unit and a second lens unit, wherein the first lens unit includes a first sub lens unit E which successively comprises a negative lens element A, a positive lens element B, a negative lens element C and a positive lens element D, a second sub lens unit comprising at least one lens element is a focusing lens unit in the second lens unit, and the conditions: 1.0

Abstract translation: 一种单焦距透镜系统，包括至少一个正的第一透镜单元和第二透镜单元，其中第一透镜单元包括第一副透镜单元E，该第一子透镜单元E依次包括负透镜元件A，正透镜元件B，负透镜 元件C和正透镜元件D，包括至少一个透镜元件的第二子透镜单元是第二透镜单元中的聚焦透镜单元，并且条件为：1.0 <| fW / fA | <2.2,0.5

公开(公告)号：US10165238B2

公开(公告)日：2018-12-25

申请号：US15009362

申请日：2016-01-28

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yasuhiro Tanaka ,  Yoshiyuki Hisatomi ,  Kazuhiro Minami ,  Kyoichi Miyazaki

IPC: H04N9/31 ,  G02B7/16 ,  G03B21/14

Abstract: A projector system including a projector unit and a control device. The projector unit includes: a projector; a change mechanism that changes a projection direction; a plurality of optical systems having different optical properties; and a switch mechanism that selects one of the optical systems. The control device includes: a change unit that controls the change mechanism; and a switch unit that causes the switch mechanism to place one of the optical systems to be used for the projector in conjunction with the changing of the projection direction of the projector which is caused by the change unit.