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21. 发明公开

US20230266595A1 OPTICAL SYSTEM FOR VIRTUAL IMAGE DISPLAY DEVICE, VIRTUAL IMAGE DISPLAY DEVICE, AND HEAD-MOUNTED DISPLAY 审中-公开
公开(公告)号：US20230266595A1
公开(公告)日：2023-08-24
申请号：US18107512
申请日：2023-02-09
申请人： Yoshifumi SUDOH
发明人： Yoshifumi SUDOH
IPC分类号： G02B27/01 , G02B27/00 , G02B27/09 , G02B27/02
CPC分类号： G02B27/0172 , G02B27/0025 , G02B27/0983 , G02B27/027 , G02B2027/0178
摘要： An optical system for a virtual image display device includes a light guide, a reflector, and an intermediate image forming portion. The light guide is configured to guide image light emitted from an image display element that displays an image, to proceed in the light guide. The light guide includes a partial reflector, a first portion on one side of the partial reflector, and a second portion on another side of the partial reflector. The partial reflector transmits the image light incident from the first portion and reflects the image light incident from the second portion to guide the image light to exit the light guide. The reflector reflects the image light transmitted through the partial reflector and the second portion back to the partial reflector. The intermediate image forming portion forms an intermediate image with the image light in the light guide.

22. 发明申请

US20150130961A1 ZOOM LENS AND CAMERA 有权
标题翻译：变焦镜头和相机
公开(公告)号：US20150130961A1
公开(公告)日：2015-05-14
申请号：US14510238
申请日：2014-10-09
申请人： Yoshifumi SUDOH
发明人： Yoshifumi SUDOH
IPC分类号： G02B15/14 , H04N5/232 , G02B13/18
CPC分类号： H04N5/23296 , G02B5/005 , G02B5/1814 , G02B9/34 , G02B9/36 , G02B13/0015 , G02B13/002 , G02B13/0055 , G02B13/006 , G02B13/009 , G02B13/18 , G02B15/14 , G02B15/17 , G02B15/24 , G02B27/0037 , G02B27/0056 , G02B27/0062 , G02B27/0944 , G02B27/4211
摘要： A zoom lens includes, in order from an object side, a first lens group having a positive refractive power, a second lens group having a negative refractive power, a third lens group having a negative refractive power, and a fourth lens group having a positive refractive power. During change of magnification from a short focal end to a long focal end, the first lens group is fixed, the second lens group is moved to an image side, the third lens group is moved, and the fourth lens group is fixed. The first lens group and the fourth lens group include diffraction surfaces and satisfy the Condition Expressions 50
摘要翻译：变焦透镜从物体侧依次包括具有正折光力的第一透镜组，具有负折光力的第二透镜组，具有负折光力的第三透镜组，以及具有正折光力的第四透镜组屈光力。在从短焦端到长焦端的放大率变化期间，第一透镜组被固定，第二透镜组移动到图像侧，第三透镜组移动，并且第四透镜组被固定。第一透镜组和第四透镜组包括衍射面，并且满足条件表达式50

23. 发明申请

US20110228408A1 ZOOM LENS, IMAGING APPARATUS, AND INFORMATION DEVICE 有权
标题翻译：变焦镜头，成像设备和信息设备
公开(公告)号：US20110228408A1
公开(公告)日：2011-09-22
申请号：US13050552
申请日：2011-03-17
申请人： Yoshifumi SUDOH
发明人： Yoshifumi SUDOH
IPC分类号： G02B15/14
CPC分类号： G02B15/173
摘要： A zoom lens includes a first lens group having a positive refractive power, a second lens group having a negative refractive power, a third lens group having a positive refractive power, and a fourth lens group having a positive refractive power, which are disposed in order from an object side to an image side and an aperture stop disposed between the second and third lens groups. When changing the magnification of the zoom lens from a short focal end to a long focal end, an interval between the first and second lens groups increases, an interval between the second and third lens groups decreases, and an interval between the third and fourth lens groups increases. The first and third lens groups are moved so as to be positioned at object side positions at the long focal end relative to positions at the short focal end. The third lens group has two positive lenses. Predetermined conditions of the positive lenses of the third lens group are satisfied.
摘要翻译：变焦透镜包括具有正折光力的第一透镜组，具有负折光力的第二透镜组，具有正折射光焦度的第三透镜组和具有正折射光焦度的第四透镜组，其按顺序布置从物体侧到图像侧，以及设置在第二和第三透镜组之间的孔径光阑。当将变焦透镜从短焦点改变为长焦点时，第一和第二透镜组之间的间隔增加，第二和第三透镜组之间的间隔减小，并且第三透镜和第四透镜之间的间隔团体增加。第一透镜组和第三透镜组相对于短焦端处的位置被移动以便被定位在长焦端处的物体侧位置处。第三透镜组具有两个正透镜。满足第三透镜组的正透镜的预定条件。

24. 发明申请

US20110222169A1 ZOOM LENS, IMAGING DEVICE AND INFORMATION DEVICE 有权
标题翻译：变焦镜头，成像设备和信息设备
公开(公告)号：US20110222169A1
公开(公告)日：2011-09-15
申请号：US13046087
申请日：2011-03-11
申请人： Yoshifumi SUDOH
发明人： Yoshifumi SUDOH
IPC分类号： G02B15/14
CPC分类号： G02B15/173
摘要： A zoom lens includes, in order from an object side, a first lens group having a positive refractive power, a second lens group having a negative refractive power, the second lens group including, in order from the object side, a first negative lens and a cemented lens including a second negative lens having a convex shape on the object side and a positive lens, a third lens group having a positive refractive power, a fourth lens group having a positive refractive power, and an aperture stop arranged between the second lens group and the third lens group, wherein when changing a magnification from a short focal end to a telephoto end, an interval between the first lens group and the second lens group is increased, an interval between the second lens group and the third lens group is decreased, an interval between the third lens group and the fourth lens group is increased, and the first lens group and the third lens group are moved to be located closer to the object side at the long focal end than the short focal end.
摘要翻译：变焦透镜从物体侧依次包括具有正折光力的第一透镜组，具有负屈光力的第二透镜组，第二透镜组从物体侧依次包括第一负透镜和包括在物体侧具有凸形状的第二负透镜和正透镜的胶合透镜，具有正屈光力的第三透镜组，具有正屈光力的第四透镜组和布置在第二透镜之间的孔径光阑组和第三透镜组，其中当从短焦点改变到远摄端的倍率时，第一透镜组和第二透镜组之间的间隔增大，第二透镜组和第三透镜组之间的间隔是第三透镜组和第四透镜组之间的间隔增加，并且第一透镜组和第三透镜组在长焦点处移动到更靠近物体侧结束比短焦点。

25. 发明申请

US20150260969A1 ZOOM LENS UNIT AND CAMERA 有权
标题翻译：变焦镜头单元和摄像机
公开(公告)号：US20150260969A1
公开(公告)日：2015-09-17
申请号：US14572973
申请日：2014-12-17
申请人： Yoshifumi SUDOH
发明人： Yoshifumi SUDOH
IPC分类号： G02B15/17 , G02B27/00 , G02B13/14
CPC分类号： G02B15/17 , G02B13/146 , G02B27/0056 , G02B27/0062 , G02B27/4211
摘要： A zoom lens unit comprises a first and fourth lens groups with positive refractive power, a second and third lens groups with negative refractive power. The first and the fourth lens groups are fixed, the second lens group moves toward an image side and the fourth lens group moves when changing a magnification ratio from a wide-angle end to a telephoto end. The fourth lens group includes a positive lens L41 having a convex surface on the object side, a negative lens L42 having a concave surface on an image side, positive lenses L43, L45, and a negative lens L44. A following condition is fulfilled: 0.1
摘要翻译：变焦透镜单元包括具有正屈光力的第一和第四透镜组，具有负屈光力的第二和第三透镜组。第一透镜组和第四透镜组是固定的，当从广角端到望远端改变放大率时，第二透镜组向图像侧移动，第四透镜组移动。第四透镜组包括在物体侧具有凸面的正透镜L41，在像侧具有凹面的负透镜L42，正透镜L43，L45和负透镜L44。满足以下条件：0.1 <（R411-R422）/（R411 + R422）<0.6其中R411表示正透镜L41的物体侧表面的曲率半径，R422表示图像侧的曲率半径负透镜L42的表面。

26. 发明申请

US20150241675A1 ZOOM LENS, CAMERA, AND PORTABLE INFORMATION TERMINAL DEVICE 有权
标题翻译：变焦镜头，相机和便携式信息终端设备
公开(公告)号：US20150241675A1
公开(公告)日：2015-08-27
申请号：US14617118
申请日：2015-02-09
申请人： Yoshifumi SUDOH
发明人： Yoshifumi SUDOH
IPC分类号： G02B15/17 , G02B13/14 , G02B13/00 , G02B15/20 , G03B3/00
CPC分类号： G02B13/146 , G02B5/005 , G02B9/34 , G02B9/36 , G02B13/0015 , G02B13/002 , G02B13/004 , G02B13/006 , G02B13/009 , G02B15/167 , G02B15/173 , G02B15/20 , G03B3/00
摘要： A zoom lens includes, in order from an object side to an image side, first, second, third, and fourth lens groups with positive, negative, negative, and positive refractive powers, respectively. When varying magnification from a short focal length end to a long focal length end, the second lens group is moved to the image side, the third lens group is moved, and the first and fourth lens groups are fixed. The fourth lens group is constituted of a lens group on the object side and a lens group on the image side with a largest distance in the fourth lens group between them. Each of a refractive index, Abbe number, a partial dispersion ratio, and the like of each of at least one positive lens of the lens group on the object side and two positive lenses of the first lens group is regulated to be in a predetermined range.
摘要翻译：变焦透镜从物体侧到像侧依次包括分别具有正，负，负和正屈光力的第一，第二，第三和第四透镜组。当从短焦距端到长焦距端变化放大倍数时，第二透镜组移动到像侧，第三透镜组移动，第一透镜组和第四透镜组被固定。第四透镜组由物体侧的透镜组和图像侧的透镜组构成，第四透镜组之间的距离最大。将物体侧的透镜组的至少一个正透镜和第一透镜组的两个正透镜中的每一个的折射率，阿贝数，部分色散比等分别调节为预定范围。

27. 发明申请

US20150237265A1 ZOOM LENS UNIT AND IMAGING APPARATUS 有权
标题翻译：变焦镜头单元和成像设备
公开(公告)号：US20150237265A1
公开(公告)日：2015-08-20
申请号：US14584167
申请日：2014-12-29
申请人： Yoshifumi SUDOH
发明人： Yoshifumi SUDOH
IPC分类号： H04N5/232 , G02B15/14
CPC分类号： G02B27/4211 , G02B5/005 , G02B5/1814 , G02B7/008 , G02B9/34 , G02B9/36 , G02B13/0015 , G02B13/002 , G02B13/0045 , G02B13/0055 , G02B13/006 , G02B13/009 , G02B13/18 , G02B15/14 , G02B15/173 , G02B15/20 , G02B15/24 , G02B27/0025 , G02B27/0037 , G02B27/0056 , G02B27/0062 , G02B27/0944 , G02B27/42 , G02B27/4205
摘要： A zoom lens unit comprises a first and fourth lens groups with positive refractive power, a second and third lens groups with negative refractive power. The first and the fourth lens groups are fixed, the second lens group moves toward an image side and the fourth lens group moves when changing a magnification ratio from a wide-angle end to a telephoto end. The fourth lens group includes a negative resin lens and at least one positive lens. At least one of said positive lenses fulfills following conditions: 1.40
摘要翻译：变焦透镜单元包括具有正屈光力的第一和第四透镜组，具有负屈光力的第二和第三透镜组。第一透镜组和第四透镜组是固定的，当从广角端到望远端改变放大率时，第二透镜组向图像侧移动，第四透镜组移动。第四透镜组包括负树脂透镜和至少一个正透镜。所述正透镜中的至少一个满足以下条件：1.40

28. 发明申请

US20150043087A1 ZOOM LENS, CAMERA, AND PORTABLE INFORMATION DEVICE 有权
标题翻译：变焦镜头，相机和便携式信息设备
公开(公告)号：US20150043087A1
公开(公告)日：2015-02-12
申请号：US14445408
申请日：2014-07-29
申请人： Yoshifumi SUDOH
发明人： Yoshifumi SUDOH
IPC分类号： G02B15/14
CPC分类号： G02B15/14 , G02B15/17 , G02B27/4211
摘要： A zoom lens includes, in order from an object side, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, a third lens unit having a negative refractive power, and a fourth lens unit having a positive refractive power. During change of magnification from the short focal end to the long focal end, the first lens unit is stationary, the second lens unit is moved to an image side, the third lens unit is moved, and the fourth lens unit is stationary. A positive lens, included in the fourth lens unit or the first lens unit, satisfies the condition formulas: 1.40
摘要翻译：变焦透镜从物体依次包括具有正折光力的第一透镜单元，具有负折光力的第二透镜单元，具有负折光力的第三透镜单元和具有负折光力的第四透镜单元屈光力。在从短焦端到长焦端的放大变化期间，第一透镜单元是静止的，第二透镜单元移动到图像侧，第三透镜单元移动，并且第四透镜单元静止。包括在第四透镜单元或第一透镜单元中的正透镜满足条件公式：1.40

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