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1. 发明授权

US11061224B2 Optics of wearable display to increase eye-box 有权
公开(公告)号：US11061224B2
公开(公告)日：2021-07-13
申请号：US15842774
申请日：2017-12-14
申请人： Fusao Ishii , Mikiko Nakanishi , Kazuhiko Takahashi , Yuji Aburakawa , Keiichi Murakami
发明人： Fusao Ishii , Mikiko Nakanishi , Kazuhiko Takahashi , Yuji Aburakawa , Keiichi Murakami
IPC分类号： G02B27/00 , G02B27/01 , G02B27/30
摘要： A see-through image display system having an Exit-Pupil-Expander (EPE) to enlarge the eyebox of display is disclosed. The EPE uses a hologram functioning as a micro-lens-array as well as collimation lens.

2. 发明授权

US10386563B2 Illuminator for a wearable display 有权
公开(公告)号：US10386563B2
公开(公告)日：2019-08-20
申请号：US15650889
申请日：2017-07-15
申请人： Fusao Ishii , Yuji Aburakawa , Kazuhiko Takahashi , Keiichi Murakami , Mikiko Nakanishi
发明人： Fusao Ishii , Yuji Aburakawa , Kazuhiko Takahashi , Keiichi Murakami , Mikiko Nakanishi
IPC分类号： G02B27/14 , G09G5/00 , F21V8/00 , G02B27/01 , G02B27/09 , G02B27/28 , G02B27/48 , G02B5/30
摘要： A compact illuminator for a see-through image display system with highly uniform light distribution is disclosed. This invention enables wearable displays such as eye-glass type see-through display. This system provides a wide divergent beam from a display device so that a viewer can have a large eyebox.

3. 发明申请

US20180373038A1 OPTICS OF WEARABLE DISPLAY DEVICES 审中-公开
公开(公告)号：US20180373038A1
公开(公告)日：2018-12-27
申请号：US15650886
申请日：2017-07-15
申请人： Fusao Ishii , Yuji Aburakawa , Kazuhiko Takahashi , Keiichi Murakami , Mikiko Nakanishi
发明人： Fusao Ishii , Yuji Aburakawa , Kazuhiko Takahashi , Keiichi Murakami , Mikiko Nakanishi
IPC分类号： G02B27/01 , G02B17/00 , G02B3/04 , G02B5/10 , G03B21/20 , G02B5/20 , G02B27/48 , H04N9/79
CPC分类号： G02B27/0172 , G02B3/04 , G02B5/10 , G02B5/208 , G02B17/008 , G02B27/48 , G02B2027/011 , G02B2027/0116 , G02B2027/0123 , G02B2027/0174 , G02B2027/0178 , G03B21/14 , G03B21/204 , H04N9/7908
摘要： A see-through image display system with high resolution up to 4K, wide field of view (FOV) beyond 60 degrees and small form factor is proposed. The optics for the display incorporates optical elements including hologram, DOE, lens and mirror with free form surfaces. This display system is suitable for a wearable display

4. 发明授权

US11209586B2 Ghost image elimination of doe using fourier optics method 有权
公开(公告)号：US11209586B2
公开(公告)日：2021-12-28
申请号：US15843352
申请日：2017-12-15
申请人： Fusao Ishii , Mikiko Nakanishi , Kazuhiko Takahashi , Yuji Aburakawa , Keiichi Murakami
发明人： Fusao Ishii , Mikiko Nakanishi , Kazuhiko Takahashi , Yuji Aburakawa , Keiichi Murakami
IPC分类号： F21V8/00 , G02B27/01 , G02B27/18 , G02B27/48
摘要： A see-through image display system having a DOE often has undesirable light or so called ghost images due to the quantization of saw tooth shape of DOE surface. This invention provides ways to eliminate ghost images.

5. 发明授权

US10539798B2 Optics of wearable display devices 有权
公开(公告)号：US10539798B2
公开(公告)日：2020-01-21
申请号：US15650886
申请日：2017-07-15
申请人： Fusao Ishii , Yuji Aburakawa , Kazuhiko Takahashi , Keiichi Murakami , Mikiko Nakanishi
发明人： Fusao Ishii , Yuji Aburakawa , Kazuhiko Takahashi , Keiichi Murakami , Mikiko Nakanishi
IPC分类号： G02B27/10 , G02B27/01 , G02B3/04 , G02B5/10 , G02B5/20 , G02B17/00 , G02B27/48 , G03B21/20 , H04N9/79
摘要： A see-through image display system with high resolution up to 4K, wide field of view (FOV) beyond 60 degrees and small form factor is proposed. The optics for the display incorporates optical elements including hologram, DOE, lens and mirror with free form surfaces. This display system is suitable for a wearable display.

6. 发明申请

US20180372940A1 ILLUMINATOR FOR A WEARABLE DISPLAY 审中-公开
公开(公告)号：US20180372940A1
公开(公告)日：2018-12-27
申请号：US15650889
申请日：2017-07-15
申请人： Fusao Ishii , Yuji Aburakawa , Kazuhiko Takahashi , Keiichi Murakami , Mikiko Nakanishi
发明人： Fusao Ishii , Yuji Aburakawa , Kazuhiko Takahashi , Keiichi Murakami , Mikiko Nakanishi
IPC分类号： F21V8/00 , G02B27/01
CPC分类号： G02B6/0031 , G02B5/30 , G02B27/0172 , G02B27/0905 , G02B27/0961 , G02B27/141 , G02B27/283 , G02B27/48 , G02B2027/011 , G02B2027/012 , G02B2027/0123 , G02B2027/0138 , G02B2027/0174 , G02B2027/0178
摘要： A compact illuminator for a see-through image display system with highly uniform light distribution is disclosed. This invention enables wearable displays such as eye-glass type see-through display. This system provides a wide divergent beam from a display device so that a viewer can have a large eyebox.

7. 发明申请

US20080007511A1 IMAGE DISPLAY DEVICE AND IMAGE DISPLAY METHOD 有权
标题翻译：图像显示装置和图像显示方法
公开(公告)号：US20080007511A1
公开(公告)日：2008-01-10
申请号：US11773203
申请日：2007-07-03
申请人： Masashi Tsuboi , Tsutomu Horikoshi , Mikiko Nakanishi , Yasuhiro Takagi
发明人： Masashi Tsuboi , Tsutomu Horikoshi , Mikiko Nakanishi , Yasuhiro Takagi
IPC分类号： G09G3/36
CPC分类号： G02B27/2214 , G02B27/0093 , H04N13/305 , H04N13/31 , H04N13/366
摘要： It is an object of the present invention to display unnaturalness-free images without showing an observer repetitive images in accordance with the observer's viewpoint.A light beam control element 101b limits a viewing area of images composed of light emitted from a light source array 101a. Here, a terminal position detection sensor 102 or an observer position detection sensor 103 detects a relative positional relationship between the observer's eye observing the image formed by the light emitted from the light source array 101a, and the light source array 101a and the light beam control element 101b. Based on the positional relationship detected by these sensors, a display image control device 104 controls the light source array 101a so as to change display contents of the light forming the image with the viewing area limited by the light beam control element 101b.
摘要翻译：本发明的目的是根据观察者的观点来显示不自然的图像而不显示观察者的重复图像。光束控制元件101b限制由从光源阵列101a发射的光组成的图像的观看区域。这里，终端位置检测传感器102或观察者位置检测传感器103检测观察者观察由从光源阵列101a发出的光形成的图像与光源阵列101a和光的相对位置关系光束控制元件101b。基于由这些传感器检测到的位置关系，显示图像控制装置104控制光源阵列101a，以便以由光束控制元件101b限制的观看区域来改变形成图像的光的显示内容。

8. 发明授权

US11598971B2 Image device with a compact homogenizer 有权
公开(公告)号：US11598971B2
公开(公告)日：2023-03-07
申请号：US16798951
申请日：2020-02-24
申请人： Fusao Ishii , NTT DOCOMO, INC.
发明人： Fusao Ishii , Mikiko Nakanishi , Kazuoki Ichikawa , Yuji Aburakawa
IPC分类号： G02B27/28 , G02B27/01
摘要： A compact light source for a projection display is disclosed enabling eye-glass display using a Fresnel mirror reflecting light without a distance as conventional prism type reflector.

9. 发明授权

US07719621B2 Image display device and method having image control unit preventing light source unit from outputting an image when observer is outside of predefined normal viewing area 有权
标题翻译：图像显示装置和方法具有图像控制单元，当观察者在预定义的正常观看区域之外时，防止光源单元输出图像
公开(公告)号：US07719621B2
公开(公告)日：2010-05-18
申请号：US11773203
申请日：2007-07-03
申请人： Masashi Tsuboi , Tsutomu Horikoshi , Mikiko Nakanishi , Yasuhiro Takagi
发明人： Masashi Tsuboi , Tsutomu Horikoshi , Mikiko Nakanishi , Yasuhiro Takagi
IPC分类号： G02F1/1335
CPC分类号： G02B27/2214 , G02B27/0093 , H04N13/305 , H04N13/31 , H04N13/366
摘要： It is an object of the present invention to display unnaturalness-free images without showing an observer repetitive images in accordance with the observer's viewpoint.A light beam control element 101b limits a viewing area of images composed of light emitted from a light source array 101a. Here, a terminal position detection sensor 102 or an observer position detection sensor 103 detects a relative positional relationship between the observer's eye observing the image formed by the light emitted from the light source array 101a, and the light source array 101a and the light beam control element 101b. Based on the positional relationship detected by these sensors, a display image control device 104 controls the light source array 101a so as to change display contents of the light forming the image with the viewing area limited by the light beam control element 101b.
摘要翻译：本发明的目的是根据观察者的观点来显示不自然的图像而不显示观察者的重复图像。光束控制元件101b限制由从光源阵列101a发射的光组成的图像的观看区域。这里，终端位置检测传感器102或观察者位置检测传感器103检测观察由观察由光源阵列101a发出的光形成的图像的观察者眼睛与光源阵列101a与光束控制之间的相对位置关系元件101b。基于这些传感器检测到的位置关系，显示图像控制装置104控制光源阵列101a，以便利用由光束控制元件101b限制的观看区域来改变形成图像的光的显示内容。

10. 发明授权

US11073694B2 Optics of wearable display using laser beam scanner 有权
公开(公告)号：US11073694B2
公开(公告)日：2021-07-27
申请号：US15843330
申请日：2017-12-15
申请人： Fusao Ishii , NTT DOCOMO, Inc.
发明人： Fusao Ishii , Mikiko Nakanishi , Kazuhiko Takahashi , Yuji Abrakawa , Keiichi Murakami
IPC分类号： G02B27/01 , G02B26/08 , G02B26/10
摘要： A see-through image display system having a laser-beam-scanner has a very small eyebox when a laser beam is directly projected into eye. This invention provides a solution to increase the size of eyebox using a free-form-mirror to create a real image with high NA without exit-pupil-expander.

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