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公开(公告)号：US20200033573A1
公开(公告)日：2020-01-30
申请号：US16524537
申请日：2019-07-29
Applicant: SEIKO EPSON CORPORATION
Inventor： Takashi TAKEDA , Masayuki TAKAGI , Toshiaki MIYAO , Tokito YAMAGUCHI
Abstract: A virtual image display apparatus includes a display device (image forming unit), a first mirror member configured to reflect imaging light from the display device, a second mirror member configured to reflect imaging light reflected by the first mirror member, and a third mirror member of a transmissive type configured to reflect imaging light reflected by the second mirror member toward a position of an exit pupil. One of the first mirror member and the second mirror member is a refractive reflective optical member that includes a refractive member including a refractive surface, and a mirror surface formed at a non-refractive surface of the refractive member.
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公开(公告)号：US20190113755A1
公开(公告)日：2019-04-18
申请号：US16162754
申请日：2018-10-17
Applicant: SEIKO EPSON CORPORATION
Inventor： Akira KOMATSU , Masayuki TAKAGI , Takashi TAKEDA , Toshiaki MIYAO , Tokito YAMAGUCHI
IPC: G02B27/01 , H04N13/139
Abstract: First display elements and first ocular optical systems perform display in a first display region on a front side with respect to an observer, whereas second display elements and second ocular optical systems perform display in second display regions on peripheral sides with respect to the observer. Thus, a superimposed region of the display regions is provided in a position outside a central side of a person's visual field having an excellent information receiving capacity, and a wide angle of view is achieved while preventing the boundary from being visually identified. Further, the whole device is reduced in size and thickness by providing the plurality of display elements.
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公开(公告)号：US20190094550A1
公开(公告)日：2019-03-28
申请号：US16143652
申请日：2018-09-27
Applicant: SEIKO EPSON CORPORATION
Inventor： Masayuki TAKAGI , Akira KOMATSU , Takashi TAKEDA , Toshiaki MIYAO , Tokito YAMAGUCHI
IPC: G02B27/01 , G06F3/01 , G02F1/1335
Abstract: An eyepiece optical system is configured to form a non-telecentric optical system together with an image display unit serving as an image element, and to include the pixels in which a pixel in a peripheral region and the like on an image display has a larger size than a pixel in a central region on the image display. Accordingly, the central region that supports a wide angle of view and is of the image display on the image element having an effective field of view with a good performance of information capacity, makes it possible to retain image formation with high resolution, and to prevent an image from being degraded in the peripheral region, thus making it possible to ensure high-quality visibility.
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公开(公告)号：US20180246327A1
公开(公告)日：2018-08-30
申请号：US15899402
申请日：2018-02-20
Applicant: SEIKO EPSON CORPORATION
Inventor： Masayuki TAKAGI , Takashi TAKEDA , Akira KOMATSU , Toshiaki MIYAO
CPC classification number: G02B27/017 , G02B27/0172 , G02B27/02 , G02B27/22 , G02B2027/0132 , G02B2027/0138 , G02B2027/0178 , G02F1/1335 , G02F1/1347 , G02F2201/44 , G03B35/16 , H04N5/64
Abstract: An image display apparatus includes image displaying sections that present displayed images to a user and allow the user to visually recognize outside light, a first light adjusting member that is disposed on an outside-facing side of the image displaying sections and adjusts the transmittance based on outside light incident on the first light adjusting member, and a second light adjusting member that is disposed between the image displaying sections and the first light adjusting member and adjusts the transmittance in accordance with the transmittance of the first light adjusting member.
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公开(公告)号：US20180231787A1
公开(公告)日：2018-08-16
申请号：US15956207
申请日：2018-04-18
Applicant: SEIKO EPSON CORPORATION
Inventor： Masayuki TAKAGI , Takahiro TOTANI , Toshiaki MIYAO , Akira KOMATSU , Takashi TAKEDA
CPC classification number: G02B27/0176 , G02B6/08 , G02B27/0101 , G02B27/0149 , G02B27/0172 , G02B2027/0125 , G02B2027/0169 , G02B2027/0178
Abstract: A virtual image display device has a light guide device in which the half mirror layer (the semi-transmissive reflecting film) of the light guide member is formed on the partial area of the first junction surface, and the second junction surface of the light transmitting member is bonded to the first junction surface in at least the exceptional area. Therefore, it is possible to increase the bonding strength of the first junction surface and the second junction surface, namely the strength of the light guide device composed of the light guide member and the light transmitting member combined with each other even in the case in which the attachment force of the half mirror layer (the semi-transmissive reflecting film) with respect to the first junction surface is not sufficiently strong.
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Patent Agency Ranking
公开(公告)号：US20180067325A1
公开(公告)日：2018-03-08
申请号：US15557064
申请日：2016-02-01
Applicant: SEIKO EPSON CORPORATION
Inventor： Masatoshi YONEKUBO , Osamu YOKOYAMA , Takashi TAKEDA , Mitsutaka IDE , Daisuke ISHIDA
Abstract: The image display device includes an image generating unit that emits first image light, a pupil expanding element that expands a diameter of a light flux included in the first image light from the image generating unit to obtain second image light, a first light condensing optical system that condenses the second image light and forms an intermediate image, and a second light condensing optical system that condenses light from the intermediate image and generates a virtual image on eye of a viewer, in a plane including at least the image generating unit, the pupil expanding element, and the eye of the viewer, a maximum emission angle of the first image light is smaller than a maximum viewing angle of the virtual image, and the diameter of the light flux included in the second image light is greater than that of a light flux included in the virtual image.
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公开(公告)号：US20170299871A1
公开(公告)日：2017-10-19
申请号：US15636820
申请日：2017-06-29
Applicant: SEIKO EPSON CORPORATION
Inventor： Takahiro TOTANI , Masayuki TAKAGI , Toshiaki MIYAO , Akira KOMATSU , Takashi TAKEDA
CPC classification number: G02B27/0172 , G02B6/00 , G02B6/0045 , G02B2027/0112 , G02B2027/0118 , G02B2027/0123 , G02B2027/0125 , G02B2027/0178 , H04N13/111 , H04N13/332 , H04N13/344
Abstract: A half mirror layer has an angle dependency in which when an angle of incidence becomes larger than the angle of incidence range of image light, reflectance increases, such that it is possible to prevent unintended light, which is emitted to a light transmitting member from a light guiding member and is reflected inside a light transmitting member, from being returned to a Eight emission portion of the light guiding member after passing through the half mirror layer as a reflective film at a relatively large angle of incidence. Therefore, it is possible to prevent the image light passed through the light transmitting member from becoming ghost light while mitigating the demand for increasing processing accuracy of the light transmitting member, and bonding accuracy between the light guiding member and the light transmitting member, to provide a high quality virtual image displayed by a virtual image display device.
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128.发明申请公开(公告)号：US20170184859A1
公开(公告)日：2017-06-29
申请号：US15459390
申请日：2017-03-15
Applicant: SEIKO EPSON CORPORATION
Inventor： Masayuki TAKAGI , Toshiaki MIYAO , Takahiro TOTANI , Takashi TAKEDA , Akira KOMATSU
CPC classification number: G02B27/0172 , G02B1/14 , G02B6/0048 , G02B27/0006 , G02B2027/0125 , G02B2027/013 , G02B2027/0178 , G02B2027/0194
Abstract: In a light guide device, a step between optical surfaces connected to each other by a connection portion can be limited (e.g., to 1 mm or smaller) so that a large stepped portion is not allowed to be formed at the connection portion in a hard coat formation process, whereby a coating liquid that flows along portions that are to form the optical surfaces forms no liquid pool or causes no liquid sagging. The light guide device can thus maintain satisfactory light guiding performance at the light guide portion.
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公开(公告)号：US20170184855A1
公开(公告)日：2017-06-29
申请号：US15381859
申请日：2016-12-16
Applicant: SEIKO EPSON CORPORATION
Inventor： Masayuki TAKAGI , Takahiro TOTANI , Takashi TAKEDA , Akira KOMATSU , Toshiaki MIYAO
CPC classification number: G02B27/0172 , G02B6/0001 , G02B6/002 , G02B6/0045 , G02B6/0055 , G02B27/0018 , G02B2027/0121 , G02B2027/013 , G02B2027/0178 , H04N9/3141 , H04N9/3152
Abstract: In a connection portion connecting a first reflective surface and a second reflective surface, the first reflective surface positioned relatively on an incidence side of video light is made to protrude toward an observer side beyond the second reflective surface positioned relatively on an emission side of video light, and a connection surface which is a surface of the connection portion is shaped to extend from a side close to the observer toward a side away from the observer between the first reflective surface and the second reflective surface.
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130.发明申请公开(公告)号：US20170090198A1
公开(公告)日：2017-03-30
申请号：US15261729
申请日：2016-09-09
Applicant: SEIKO EPSON CORPORATION
Inventor： Masayuki TAKAGI , Takahiro TOTANI , Takashi TAKEDA , Akira KOMATSU , Toshiaki MIYAO
Abstract: A transmissive display apparatus allows see-through observation in which video light and outside light are superimposed on each other for visual recognition of the superimposed light and further allows a light control shade to control the outside light by changing the outside light transmittance of the light control shade in accordance with a change in quantity of the outside light. In this case, in particular, when a decrease in the outside light quantity is detected with an outside light sensor, which is the outside light detection section, a light quantity control section of a primary control section performs quick response control in which the transmittance of the light control shade is quickly adjusted (outside light quantity is controlled).
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