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公开(公告)号：US20210011304A1
公开(公告)日：2021-01-14
申请号：US16976159
申请日：2019-06-07
申请人： National University Corporation Tokyo University of Agriculture and Technology , Itoh Optical Industrial Co., Ltd.
发明人： Yasuhiro Takaki , Yasushi Miyajima
IPC分类号： G02B30/22
摘要： Provided are stereoscopic eyeglasses capable of reducing visual fatigue in binocular stereoscopic display by a simple configuration. In stereoscopic eyeglasses, in order to expand a tolerance of match between vergence and accommodation enabling comfortable stereovision in eyeglasses-using stereoscopic display, wide-focus lenses ranging in focal length are incorporated so as to overlap optical filters in light transmission directions, and accordingly, visual fatigue to be caused by vergence-accommodation conflict during stereoscopic image observation is reduced.
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公开(公告)号：US20220397773A1
公开(公告)日：2022-12-15
申请号：US17762766
申请日：2020-07-06
IPC分类号： G02C7/02
摘要： A method for designing an eyeglass lens includes an eyeball model construction step of determining a value of a parameter of each of a plurality of optical elements, and constructing an eyeball model, an aberration acquisition step of making a light ray incident at a predetermined angle with respect to a visual axis of the eyeball model to obtain an off-axis aberration in a paracentral portion and a peripheral portion of a retina of the eyeball model by an optical simulation, an aspherical coefficient value calculation step of disposing an eyeglass lens on a front side of the eyeball model and performing the optical simulation to obtain an aspherical coefficient value acting in a direction of reducing the off-axis aberration, and an aspherical shape determination step of determining an aspherical shape of the eyeglass lens based on the aspherical coefficient value.
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公开(公告)号：US20210286177A1
公开(公告)日：2021-09-16
申请号：US16617689
申请日：2019-07-22
申请人： National University Corporation Tokyo University of Agriculture and Technology , Itoh Optical Industrial Co., Ltd.
发明人： Yasuhiro Takaki , Yasushi Miyajima
摘要： Provided is a head-mounted display that enables viewing of a stereoscopic image without visual fatigue caused by vergence-accommodation conflict. A head-mounted display includes a display device to display images for the left eye and the right eye on a screen, virtual image forming optical systems for the left eye and the right eye, respectively disposed with respect to images for the left eye and the right eye on the screen, and wide-focus lenses for the left eye and the right eye having a negative focal length with a range, and respectively disposed with respect to the virtual image forming optical systems for the left eye and the right eye so as to overlap optical axis directions of the virtual image forming optical systems for the left eye and the right eye. By respectively displaying virtual images of images, a permissible range of vergence and accommodation is expanded.
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公开(公告)号：US10723915B2
公开(公告)日：2020-07-28
申请号：US16199407
申请日：2018-11-26
发明人： Naoki Uchida
摘要： A hard coating composition applied to an optical element body formed of organic glass. The hard coating composition contains a hydrolyzate of alkoxysilane as a main agent, a polyvalent organic carboxylic acid and a nitrogen-containing compound as auxiliary agents, and a metal oxide colloid as a refractive index control agent. The alkoxysilane contains a epoxy group-containing trialkoxysilane as a first component, tetraalkoxysilane as a second component, and a sulfide bonded tetraalkoxysilane as a third component. The hard coating composition has practical abrasion resistance by the first component and the second component, and a blending amount of the third component is an amount not impairing the practical abrasion resistance.
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公开(公告)号：US20150024212A1
公开(公告)日：2015-01-22
申请号：US13947378
申请日：2013-07-22
发明人： Naoki Uchida
CPC分类号： C09D1/00 , C09D183/04 , G02B1/14 , Y10T428/31511 , Y10T428/31598 , Y10T428/31663 , C08K5/09 , C08K2003/2237
摘要： Provided is a hard coating composition with which optical interference and a blue discoloration due to ultraviolet rays do not occur when applied to an ultrahigh refractive index organic glass with a refractive index exceeding 1.67. The hard coating composition is applied to an optical component body formed of an organic glass. An alkoxysilane hydrolyzate is a hydrolyzate of a mixture of a predetermined ratio of a trialkoxysilane and a tetraalkoxysilane, and an inorganic oxide colloid is blended to make a coating film refractive index approximate to the refractive index of the organic glass. The inorganic oxide colloid is a rutile-based colloid containing an amine dispersant. An organic carboxylic acid is used as a low-temperature curing catalyst of the hydrolyzate.
摘要翻译： 本发明提供一种硬涂层组合物，当涂覆到折射率超过1.67的超高折射率有机玻璃时，由于紫外线而不发生光学干涉和蓝色变色。 将硬涂层组合物施加到由有机玻璃形成的光学部件体上。 烷氧基硅烷水解物是预定比例的三烷氧基硅烷和四烷氧基硅烷的混合物的水解产物，并且混合无机氧化物胶体以使涂膜折射率接近有机玻璃的折射率。 无机氧化物胶体是含有胺分散剂的金红石型胶体。 使用有机羧酸作为水解产物的低温固化催化剂。
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公开(公告)号：US11300805B2
公开(公告)日：2022-04-12
申请号：US16976159
申请日：2019-06-07
申请人： National University Corporation Tokyo University of Agriculture and Technology , Itoh Optical Industrial Co., Ltd.
发明人： Yasuhiro Takaki , Yasushi Miyajima
摘要： Provided are stereoscopic eyeglasses capable of reducing visual fatigue in binocular stereoscopic display by a simple configuration. In stereoscopic eyeglasses, in order to expand a tolerance of match between vergence and accommodation enabling comfortable stereovision in eyeglasses-using stereoscopic display, wide-focus lenses ranging in focal length are incorporated so as to overlap optical filters in light transmission directions, and accordingly, visual fatigue to be caused by vergence-accommodation conflict during stereoscopic image observation is reduced.
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公开(公告)号：US20220197063A1
公开(公告)日：2022-06-23
申请号：US17604639
申请日：2020-04-17
发明人： Yusuke MATSUI , Kouji SUESUGI , Shinsuke ITO , Hirofumi ODA
摘要： In an optical material, a transmittance curve satisfies the following characteristics (1) and (2) and a hue in the CIE 1976 (L*, a*, b*) color space satisfies the following characteristic (3), (1) the transmittance curve has a maximum value of a transmittance at a wavelength of from 400 nm to 450 nm or from 520 nm to 570 nm, and a largest value of the transmittance at the wavelength of from 400 nm to 450 nm and a transmittance at from 520 nm to 570 nm are 50% or more, (2) the transmittance curve has a minimum value of a transmittance at a wavelength of from 470 nm to 500 nm, and the minimum value is 40% or less, and (3) in the hue in the CIE 1976 (L*, a*, b*) color space, a* is from 2.5 to 5.5 and b* is from 5 to 25.
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公开(公告)号：US20200319478A1
公开(公告)日：2020-10-08
申请号：US16305200
申请日：2016-11-25
发明人： Yasushi Miyajima
摘要： A corrective lens that can improve contrast sensitivity in a dark place, for example, at night is provided. When an axis in the anteroposterior direction passing through the geometric center of a lens is defined as the z-axis and a direction extending to the rear side of the lens is defined as the positive direction of the z-axis, a focal depth extension component represented by Ar3 (where r is the distance from the z-axis and A is a constant) is added to the z-coordinate value of a refractive surface determined based on a prescription power to increase the focal depth. The focal depth that decreases (shallows) in a dark place is increased to facilitate focusing on a target object located in front of or behind the original focal point. This can improve contrast sensitivity in a dark place.
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9.发明申请公开(公告)号：US20230032859A1
公开(公告)日：2023-02-02
申请号：US17791736
申请日：2021-01-18
申请人： National University Corporation Tokyo University of Agriculture and Technology , Itoh Optical Industrial Co., Ltd.
发明人： Yasushi Miyajima , Yasuhiro Takaki
摘要： Provided is a head-mounted display capable of expanding the range in which a user can clearly view images. A head-mounted display 1 includes a display device 3 to display images 3a and 3b for the left eye and the right eye on a screen 3c, and virtual image forming optical systems 4a and 4b for the left eye and the right eye respectively disposed with respect to the images 3a and 3b for the left eye and the right eye on the screen 3c, wherein the virtual image forming optical systems 4a and 4b have positive power set in respective regions that visual lines of a user pass through, and include, at outer sides of optical centers in directions orthogonal to optical axes, power adjusting regions 55 having power set closer to the negative side than power at the optical centers.
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公开(公告)号：US20220214475A1
公开(公告)日：2022-07-07
申请号：US17604679
申请日：2020-04-17
发明人： Yusuke MATSUI , Shinsuke ITO , Hirofumi ODA
摘要： In an optical material of the disclosure, a transmittance curve satisfies the following characteristic (1) and a luminous transmittance satisfies the following characteristic (2), the transmittance curve and the luminous transmittance being measured at a thickness of 2 mm, (1) a maximum transmittance at a wavelength of from 410 nm to 450 nm is from 20% to 65%, and (2) the luminous transmittance is from 70% to 85%.
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