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11. 发明申请

US20220137412A1 VIRTUAL IMAGE DISPLAY DEVICE AND OPTICAL UNIT 有权
公开(公告)号：US20220137412A1
公开(公告)日：2022-05-05
申请号：US17512692
申请日：2021-10-28
申请人： SEIKO EPSON CORPORATION
发明人： Tokito Yamaguchi , Mitsutaka Ide
IPC分类号： G02B27/01 , G02B27/09
摘要： A virtual image display device includes a display element, a light-guiding system configured to guide imaging light that exits the display element, and a mirror member having a first surface where the imaging light that exits the light-guiding system is incident while being refracted and a second surface that reflects the imaging light that passes through the first surface and causes the imaging light to exit the mirror member through the first surface where the imaging light is refracted. In the mirror member, the curvature of the first surface differs from the curvature of the second surface.

12. 发明授权

US11275251B2 Image display device 有权
公开(公告)号：US11275251B2
公开(公告)日：2022-03-15
申请号：US17097626
申请日：2020-11-13
申请人： SEIKO EPSON CORPORATION
发明人： Akio Fukase , Mitsutaka Ide , Toshiyuki Noguchi
IPC分类号： G02B17/08 , G02B27/01 , G03B33/12 , G03H1/02
摘要： An image display device of the present disclosure includes an image light generating device, a first, a second, a third, and a fourth optical unit. A first intermediate image is formed between the first and the third optical unit. A pupil is formed between the second and the fourth optical unit. A second intermediate image is formed between the third and the fourth optical unit. An exit pupil is formed at an opposite side of the fourth optical unit from the third optical unit. The image light generating device includes a first, a second, a third light emitting panel, and a color synthesis element. The color synthesis element is constituted of a cross dichroic prism including a first and a second dichroic film that intersect with each other. Each of the first and the second dichroic film does not have a polarization separation characteristic.

13. 发明授权

US11073696B2 Display device 有权
公开(公告)号：US11073696B2
公开(公告)日：2021-07-27
申请号：US16142188
申请日：2018-09-26
申请人： SEIKO EPSON CORPORATION
发明人： Mitsutaka Ide
IPC分类号： G02B27/01 , G02B27/42
摘要： In an optical system of a display device, a second reflection element, a first diffraction element, a first reflection element, and a second diffraction element are disposed along a traveling direction of image light emitted from an image light projecting device. A reflection surface of the first reflection element is a concave surface being a free-curved surface and being recessed in a central portion with respect to a peripheral portion, and an intermediate image is formed between the first reflection element and the second diffraction element. A reflection surface of the second reflection element is a concave surface being a free-curved surface and being recessed in a central portion with respect to a peripheral portion, and an intermediate image is formed between the second reflection element and the first diffraction element. Therefore, an intermediate lens for forming an intermediate image is not provided.

14. 发明授权

US10866424B2 Image display device 有权
公开(公告)号：US10866424B2
公开(公告)日：2020-12-15
申请号：US16676532
申请日：2019-11-07
申请人： SEIKO EPSON CORPORATION
发明人： Akio Fukase , Mitsutaka Ide , Toshiyuki Noguchi
IPC分类号： G02B27/01 , G02B17/08 , G03B33/12 , G03H1/02
CPC分类号： G02B27/0172 , G03B33/12 , G03H1/0248 , G02B17/0804 , G02B2027/0174 , G02B2027/0178
摘要： An image display device of the present disclosure includes an image light generating device, a first, a second, a third, and a fourth optical unit. A first intermediate image is formed between the first and the third optical unit. A pupil is formed between the second and the fourth optical unit. A second intermediate image is formed between the third and the fourth optical unit. An exit pupil is formed at an opposite side of the fourth optical unit from the third optical unit. The image light generating device includes a first, a second, a third light emitting panel, and a color synthesis element. The color synthesis element is constituted of a cross dichroic prism including a first and a second dichroic film that intersect with each other. Each of the first and the second dichroic film does not have a polarization separation characteristic.

15. 发明授权

US10302949B2 Virtual image display apparatus including a diffraction optical member having a diffraction section and a light transmissive substrate 有权
$Virtual image display apparatus including a diffraction optical member having a diffraction section and a light transmissive substrate$
公开(公告)号：US10302949B2
公开(公告)日：2019-05-28
申请号：US15696326
申请日：2017-09-06
申请人： SEIKO EPSON CORPORATION
发明人： Takashi Takeda , Mitsutaka Ide
IPC分类号： G02B5/18 , G02B27/01 , G02B27/10 , G02B27/42
摘要： A virtual image display apparatus includes a diffraction optical member including a diffraction section that directs the orientation of image light based on diffraction toward the position of a viewer's eye and a light transmissive substrate that is disposed in the diffraction section and on the side facing the eye and supports the diffraction section, and an image forming section that outputs the image light toward the diffraction optical member, and the light transmissive substrate is a color separation correcting section that corrects color separation produced by the diffraction section.

16. 发明授权

US09426323B2 Device with shield to reduce degradation of calculation of medium transport 有权
标题翻译：具有屏蔽装置，减少介质运输计算的退化
公开(公告)号：US09426323B2
公开(公告)日：2016-08-23
申请号：US14795644
申请日：2015-07-09
申请人： Seiko Epson Corporation
发明人： Mitsutaka Ide , Hideyuki Kataoka , Hiroyuki Kobayashi
IPC分类号： G06F15/00 , G06K15/00 , G06K1/00 , H04N1/00
CPC分类号： H04N1/00994 , H04N1/00278 , H04N1/0032 , H04N1/00665 , H04N1/00702 , H04N1/00724 , H04N1/00734 , H04N1/00779 , H04N1/0083 , H04N1/00981
摘要： An imaging device includes an imaging unit that includes an imaging element for imaging a lower surface of continuous forms paper, an image processing unit that image-processes an image of the lower surface of the continuous forms paper captured by the imaging unit, a cable that electrically connects the imaging unit and the image processing unit with each other, and an electric box that covers the imaging element, the image processing unit, and the cable and functions as an electromagnetic shield.
摘要翻译：一种成像装置，包括：成像单元，包括用于对连续成形纸的下表面进行成像的成像元件;图像处理单元，对由所述成像单元捕获的连续形式纸张的下表面的图像进行图像处理;电缆，将成像单元和图像处理单元彼此电连接，以及覆盖成像元件，图像处理单元和电缆并用作电磁屏蔽的电箱。

17. 发明授权

US08998404B2 Transportation device and recording apparatus 有权
标题翻译：运输装置和记录装置
公开(公告)号：US08998404B2
公开(公告)日：2015-04-07
申请号：US14066533
申请日：2013-10-29
申请人： Seiko Epson Corporation
发明人： Takahiro Abe , Mitsutaka Ide
IPC分类号： B41J2/01 , B41J29/393 , B65H23/18 , G01B5/00 , G06K9/00
CPC分类号： B41J11/002 , B41J11/0095 , B65H23/1806 , B65H2513/10 , B65H2513/11 , B65H2801/15 , B65H2801/36 , G01B5/00 , G06K9/00 , G06K9/209 , G06K2209/19 , B65H2220/01 , B65H2220/03
摘要： A transportation device includes a transportation unit that transports continuous paper, and an image capturing unit that has a light irradiator capable of irradiating the continuous paper which is transported by the transportation unit with light and detects a transportation amount of the continuous paper based on reflected light of the light irradiated onto the continuous paper by the light irradiator. The light irradiator is arranged so as to irradiate the continuous paper with light obliquely with respect to the detection region of the continuous paper from the width direction side of the continuous paper, which is orthogonal to the transportation direction of the continuous paper.
摘要翻译：一种运送装置，包括输送连续纸的运送单元和具有能够用光照射由运送单元输送的连续纸的光照射装置的摄像单元，并基于反射光检测连续纸的输送量通过光照射器照射到连续纸上的光。光照射器配置成从与连续纸的传送方向正交的连续纸的宽度方向侧相对于连续纸的检测区域倾斜地照射连续纸。

18. 发明授权

US11754839B2 Display module and display device 有权
公开(公告)号：US11754839B2
公开(公告)日：2023-09-12
申请号：US17161676
申请日：2021-01-29
申请人： SEIKO EPSON CORPORATION
发明人： Masatoshi Yonekubo , Mitsutaka Ide , Takashi Takeda
IPC分类号： G02B27/01 , G02B6/28 , G02B6/293 , G02B6/35
CPC分类号： G02B27/0172 , G02B6/2848 , G02B6/2931 , G02B6/29328 , G02B6/3534 , G02B2027/0178 , G02B2027/0187
摘要： A display module includes an image light generation device, a light-guiding member, a first reflection surface configured to reflect the imaging light incident via the light-guiding member, a first diffraction element configured to diffract the imaging light, and a second diffraction element configured to diffract the image light and form an exit pupil. The image light is sequentially incident on a first deflection surface, a second deflection surface, a second reflection surface, a third reflection surface, a fourth reflection surface, and a third deflection surface inside the light-guiding member, and a distance from a reference position where an optical axis of the exit pupil and an emission surface intersect to the second deflection surface is longer than a distance from the reference position to the first deflection surface and longer than a distance from the reference position to the second reflection surface.

19. 发明授权

US11630309B2 Image light generation module and image display device 有权
公开(公告)号：US11630309B2
公开(公告)日：2023-04-18
申请号：US17162186
申请日：2021-01-29
申请人： SEIKO EPSON CORPORATION
发明人： Mitsutaka Ide , Masatoshi Yonekubo
IPC分类号： G02B27/01
摘要： An image light generation module includes a first display element configured to emit first image light, a second display element configured to emit second image light, a third display element configured to emit third image light, a combining prism configured to emit combined image light combined from the first image light, the second image light, and the third image light, and a first gap defining member that defines a first gap between the first display element and the combining prism, a second gap defining member that defines a second gap between the second display element and the combining prism, and a third gap defining member that defines a third gap between the third display element and the combining prism, in which at least one of the first gap, the second gap, and the third gap is different in size from another of the gaps.

20. 发明申请

US20220171196A1 DISPLAY DEVICE AND OPTICAL UNIT 有权
公开(公告)号：US20220171196A1
公开(公告)日：2022-06-02
申请号：US17537368
申请日：2021-11-29
申请人： SEIKO EPSON CORPORATION
发明人： Mitsutaka Ide
IPC分类号： G02B27/01 , G02B5/04
摘要： A display device includes a projection lens that transmits an image light, a prism mirror that receives the image light emitted from the projection lens through a light incident surface, reflects the image light with an inner reflection surface, and emits the image light from a light emission surface, and a see-through mirror that reflects a part of the image light emitted from the prism mirror toward a pupil position, wherein an intermediate image is formed between the inner reflection surface and the see-through mirror, and the light emission surface has a first region and a second region that is higher a refractive power than the first region.

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