公开(公告)号：US11994791B2

公开(公告)日：2024-05-28

申请号：US17677001

申请日：2022-02-22

Applicant: FUJIFILM Corporation

Inventor： Tetsuo Kamigaki ,  Hironobu Kayano ,  Masaru Amano

IPC: G03B21/14 ,  G03B21/20 ,  G03B21/28 ,  H04N5/74 ,  H04N9/31

CPC classification number: G03B21/142 ,  G03B21/2033 ,  G03B21/28 ,  H04N9/3105 ,  H04N2005/745

Abstract: One embodiment according to the technique of the present disclosure provides a projection device having a plurality of modes in which relationships between an incidence region and an emission region in an electro-optical panel are different from each other. In the projection device according to one aspect of the present invention, a control unit controls a first mode and a second mode. The first mode is a mode in which a first range of an optical region is the incidence region and a range within the first range is the emission region, and the second mode is a mode in which a second range narrower than the first range of the optical region is the incidence region and a range within the second range is the emission region.

公开(公告)号：US11592731B2

公开(公告)日：2023-02-28

申请号：US17244716

申请日：2021-04-29

Applicant: FUJIFILM Corporation

Inventor： Tetsuo Kamigaki ,  Hitoshi Shimizu ,  Yasuto Kuroda ,  Hironobu Kayano

IPC: G03B21/14 ,  G03B21/20 ,  G03B21/28

Abstract: A projection lens has a first rotary tube, a first fixed tube at which the first rotary tube is rotatably mounted, a first protrusion portion that is provided at the first rotary tube and that protrudes from the first rotary tube, and a first abutment surface that is provided at the first fixed tube and that abuts upon the first protrusion portion. The projection lens includes a first engaging portion at which the first protrusion portion and the first abutment surface include first engaging portions that face each other in a direction of a first incidence-side optical axis and a first pressing portion that presses the first protrusion portion against the first abutment surface.

公开(公告)号：US11520224B2

公开(公告)日：2022-12-06

申请号：US17244200

申请日：2021-04-29

Applicant: FUJIFILM Corporation

Inventor： Tetsuo Kamigaki ,  Hitoshi Shimizu ,  Yasuto Kuroda ,  Hironobu Kayano

IPC: G03B21/30

Abstract: There is provided a projection lens that is mounted on a housing of a projection device including an electro-optical element. The projection lens comprises an optical system through which light passes, a second holding unit through which light parallel to a second optical axis passes and which is moved rotationally with respect to the housing, a third holding unit through which light parallel to a third optical axis obtained from bending of the second optical axis passes and which is moved rotationally with respect to the second holding unit, an electric drive unit that electrically controls rotational movement of the second holding unit with respect to the housing, rotational movement of the third holding unit with respect to the second holding unit, or drive of the optical system, and a cover part that covers the electric drive unit.

公开(公告)号：US12271050B2

公开(公告)日：2025-04-08

申请号：US17240272

申请日：2021-04-26

Applicant: FUJIFILM Corporation

Inventor： Hironobu Kayano ,  Hitoshi Shimizu ,  Tetsuo Kamigaki ,  Yasuto Kuroda

IPC: G02B7/02 ,  G02B7/04 ,  G03B21/14

Abstract: A projection lens, which is a projection lens to be attached to a projection apparatus body having an electro-optical device, includes: a first focus optical system; a first holding portion that has an attachment portion and on which light along a first optical axis extending in first directions is incident; and an adjustment frame that holds the first focus optical system. When one of the first directions is defined as a first A direction and the other of the first directions is defined as a first B direction, the first focus optical system is positioned further in the first A direction than the attachment portion, and light along the first optical axis travels in the first B direction. The adjustment frame is movable in the first directions relative to the first holding portion.

公开(公告)号：US12025907B2

公开(公告)日：2024-07-02

申请号：US17244403

申请日：2021-04-29

Applicant: FUJIFILM Corporation

Inventor： Tetsuo Kamigaki ,  Hitoshi Shimizu ,  Yasuto Kuroda ,  Hironobu Kayano

IPC: G03B21/30 ,  G02B7/02 ,  G02B17/08

CPC classification number: G03B21/30 ,  G02B7/021 ,  G02B17/08

Abstract: A projection lens includes a lens barrel that accommodates an optical system from which light incident from the housing exits, and that has a first rotary tube that rotates around an optical axis and a first fixed tube at which the first rotary tube is rotatably mounted; and a first conduction portion for performing electrical conduction, the first conduction portion having a fixed electrode that is provided at the first fixed tube and a rotary electrode that is provided at the first rotary tube and that rotates as a result of rotating the first rotary tube, the rotary electrode being disposed at a position that faces the fixed electrode and contacting the fixed electrode at least at a rotation position that has been preset.

公开(公告)号：US11480856B2

公开(公告)日：2022-10-25

申请号：US17244459

申请日：2021-04-29

Applicant: FUJIFILM Corporation

Inventor： Tetsuo Kamigaki ,  Hitoshi Shimizu ,  Yasuto Kuroda ,  Hironobu Kayano

IPC: G03B21/14 ,  G03B21/28

Abstract: There is provided a projection lens that is mounted on a housing of a projection device including an electro-optical element. The projection lens includes a first holding frame through which light emitted from the housing passes, a second reflective part that refracts an optical axis of light emitted from the first holding frame and includes a pair of side surfaces facing each other, and a second holding frame that holds the second reflective part and includes a pair of first holes provided at positions corresponding to the pair of side surfaces; and each of the pair of side surfaces has a gap between itself and the second holding frame.