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公开(公告)号：US08854735B2
公开(公告)日：2014-10-07
申请号：US13355893
申请日：2012-01-23
CPC分类号： G02B27/14 , G02B6/0045 , G02B27/0172 , G02B2027/012 , G02B2027/0178
摘要： A thickness of a tapered part provided at the deeper side (−X side) in a light guide direction of a light transmission member is smaller toward the deeper side, and thus, a reflection angle of ghost light that has passed through a fourth reflection surface provided with a half mirror layer and reached the light transmission member gradually becomes smaller within the tapered part and no longer satisfies a total reflection condition, and the light is ejected to the outside in the position diverging from an eye of an observer. That is, the tapered part may prevent the ghost light from reaching the eye and good see-through observation can be realized.
摘要翻译： 在透光构件的导光方向上设置在深侧（-X侧）的锥形部的厚度朝向较深侧较小，因此，已经穿过第四反射面的重影体的反射角 设置有半透半反镜层并到达透光部件的部分在锥形部分内逐渐变小，不再满足全反射条件，并且在从观察者的眼睛偏离的位置将光弹出到外部。 也就是说，锥形部分可以防止鬼影光到达眼睛，并且可以实现良好的透视观察。
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公开(公告)号：US08837880B2
公开(公告)日：2014-09-16
申请号：US13251614
申请日：2011-10-03
CPC分类号： G02B27/0172 , G02B6/00 , G02B6/0006 , G02B6/0008 , G02B27/2214 , G02B2027/011 , G02B2027/0121
摘要： The invention is directed to provide a virtual image display device capable of setting the aspect ratio of the image light entering the eyes of the observer as a virtual image to a desired state while fulfilling the design limitations. In the invention, the aspect ratio of the virtual image can be converted to the aspect ratio (16:9) laterally longer than the aspect ratio (4:3) of the image area due to the conversion in the aspect ratio conversion optical system. Thus, the aspect ratio of the image light to be recognized by the eye of the observer as a virtual image can be adjusted to a desired state even in the case in which, for example, the lateral width of the image forming device with respect to the whole of the virtual image display device is limited by a design requirement.
摘要翻译： 本发明旨在提供一种虚拟图像显示装置，其能够在实现设计限制的同时将进入观察者的眼睛的图像光的纵横比设置为虚像而达到期望状态。 在本发明中，由于宽高比转换光学系统中的转换，虚拟图像的宽高比可以横向比长度高于图像区域的纵横比（4:3）转换成宽高比（16:9）。 因此，即使在例如图像形成装置的横向宽度相对于图像形成装置的横向宽度的情况下，也可以将由观察者的眼睛识别的图像光的纵横比调整为期望的状态 整个虚拟图像显示设备受到设计要求的限制。
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公开(公告)号：US08780447B2
公开(公告)日：2014-07-15
申请号：US13601528
申请日：2012-08-31
CPC分类号： G02B27/0172 , G02B17/008 , Y10T29/49
摘要： In a virtual image display device, a mirror layer has a thickness of 50 nm or more to perform non-transparent reflection in a second ridge line vicinity area on a third reflection face side in a ridge line portion extending between the third reflection face and a second reflection face. Accordingly, reflectance of image light can be prevented from being decreased by the second ridge line vicinity area (that is, a peripheral portion on a light guide unit in the third reflection face), and thus stripe-shaped brightness unevenness extending in a longitudinal direction can be prevented from occurring on the viewed image. That is, in the image display device, it is possible to secure sufficient reflection even in the peripheral portion close to a boundary with the second reflection face with respect to the third reflection face, and also to display a bright image with little brightness unevenness.
摘要翻译： 在虚像显示装置中，镜层的厚度为50nm以上，在第3反射面和第3反射面之间延伸的棱线部分的第3反射面侧的第2脊线附近区域进行非透明反射 第二反射面。 因此，可以防止图像光的反射率被第二脊线附近区域（即，第三反射面中的导光单元的周边部分）减小，并且因此在纵向方向上延伸的条形亮度不均匀 可以防止在观看图像上发生。 也就是说，在图像显示装置中，即使在靠近与第二反射面相对于第三反射面的边界的周边部分中也可以确保足够的反射，并且还可以显示亮度不均匀的亮度图像。
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公开(公告)号：US08743465B2
公开(公告)日：2014-06-03
申请号：US13355893
申请日：2012-01-23
IPC分类号： G02B27/14
摘要： A thickness of a tapered part provided at the deeper side (−X side) in a light guide direction of a light transmission member is smaller toward the deeper side, and thus, a reflection angle of ghost light that has passed through a fourth reflection surface provided with a half mirror layer and reached the light transmission member gradually becomes smaller within the tapered part and no longer satisfies a total reflection condition, and the light is ejected to the outside in the position diverging from an eye of an observer. That is, the tapered part may prevent the ghost light from reaching the eye and good see-through observation can be realized.
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85.发明授权公开(公告)号：US08723475B2
公开(公告)日：2014-05-13
申请号：US13329881
申请日：2011-12-19
申请人： Akihiro Nishizawa , Takashi Takeda
发明人： Akihiro Nishizawa , Takashi Takeda
IPC分类号： H02J7/00
摘要： A voltage-detecting circuit includes a flying capacitor; a first switch circuit allowing plural electric cells connected in series, so that polarity of voltage across electrodes of the flying capacitor charged by one of the electric cells is opposite to polarity of voltage across the electrodes of the flying capacitor charged by an adjacent one of the electric cells; a second switch circuit discharging the flying capacitor; an output circuit outputting a signal depending on the voltage across the flying capacitor; a shield arranged around the flying capacitor electrodes to substantially equalize parasitic capacitances between the shield and each of the electrodes; and a voltage-controlling circuit equalizing voltage between one of the electrodes of the flying capacitor and the shield when charging the flying capacitor, with voltage between another one of the electrodes of the flying capacitor and the shield when discharging the flying capacitor.
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公开(公告)号：US08662686B2
公开(公告)日：2014-03-04
申请号：US13218927
申请日：2011-08-26
IPC分类号： G02B5/08
CPC分类号： G02B27/0172 , G02B6/00 , G02B6/0036 , G02B6/0058 , G02B2027/0118
摘要： Since a distance from an image extraction part to a light exiting surface is shorter downstream in an optical path than upstream in the optical path in relation to Z direction that is an arraying direction of reflection units, image light that propagates to pass between the image extraction part and the light exiting surface without becoming incident on the reflection units and therefore cannot be extracted to outside can be reduced. That is, since image light having a large total reflection angle in a light guide plate can be securely made incident on the image extraction part and efficiently extracted from the light exiting surface, light use efficiency in image formation can be enhanced. Thus, a virtual image display apparatus with brightness and high performance can be provided.
摘要翻译： 由于从图像提取部到光出射面的距离相对于作为反射单元的排列方向的Z方向的光路的上游在光路的下游较短，所以在图像提取之间传播的图像光 部分和光出射表面而不会入射到反射单元上，因此不能将其提取到外部。 也就是说，由于导光板中具有大的全反射角的图像光可以牢固地入射到图像提取部分上并且有效地从光出射表面提取，因此可以提高图像形成中的光利用效率。 因此，可以提供具有亮度和高性能的虚像显示装置。
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公开(公告)号：US08587869B2
公开(公告)日：2013-11-19
申请号：US13361249
申请日：2012-01-30
IPC分类号： G02B27/14
CPC分类号： G02B27/0172 , G02B6/00 , G02B6/0045 , G02B2027/0112 , G02B2027/0118 , G02B2027/0123 , G02B2027/0125 , G02B2027/0178 , H04N13/111 , H04N13/332 , H04N13/344
摘要： 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 light 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.
摘要翻译： 半透镜层具有角度依赖性，其中当入射角变得大于图像光的入射范围时，反射率增加，使得可以防止从光发射部件发射的非预期光 导光构件，并且在透光构件内反射，以相对较大的入射角度通过作为反射膜的半反射镜层返回到导光构件的发光部。 因此，可以防止通过透光部件的图像光变得重影，同时减轻对透光部件的加工精度提高的要求，以及导光部件与透光部件的接合精度。
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公开(公告)号：US08564883B2
公开(公告)日：2013-10-22
申请号：US13363732
申请日：2012-02-01
CPC分类号： G02B27/0172 , G02B6/0045 , G02B2027/0125 , G02B2027/0178
摘要： Image light reflected by a third reflective surface of a light incidence portion is propagated while being totally reflected by first and second reflective surfaces of a light guiding portion, is reflected by a fourth reflective surface of a light emission portion, and is incident to observer's eye as a virtual image. At this time, the number of times of reflection of first image light, which is emitted from a first partial region of an image display device, in the light guiding portion, and the number of times of reflection of second image light, which is emitted from a second partial region of the image display device in the light guiding portion are different from each other, such that it is possible to take in the image light beams from the different partial regions of the image display device with a relatively wide angle of view.
摘要翻译： 由光入射部分的第三反射表面反射的图像光在被导光部分的第一和第二反射表面全面反射的同时传播，被发光部分的第四反射表面反射，并入射到观察者的眼睛 作为虚拟图像。 此时，从导光部分的图像显示装置的第一部分区域发射的第一图像光的反射次数和发射的第二图像光的反射次数 在导光部分中的图像显示装置的第二部分区域彼此不同，使得可以以相对宽的视角从图像显示装置的不同部分区域拍摄来自图像的光束 。
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89.发明授权Overcurrent protection circuit for connecting a current detection terminal to overcurrent detection resistors having different resistances 有权用于将电流检测端子连接到具有不同电阻的过电流检测电阻器的过电流保护电路公开(公告)号：US08525482B2
公开(公告)日：2013-09-03
申请号：US12617755
申请日：2009-11-13
申请人： Takashi Takeda
发明人： Takashi Takeda
IPC分类号： H02J7/00
CPC分类号： H02J7/0029 , H02J2007/0039
摘要： An overcurrent protection circuit of a rechargeable battery includes a current detection terminal and an overcurrent return resistor connecting part. A voltage converted from a discharge current of the rechargeable battery is detected at the current detection terminal. The overcurrent return resistor connecting part connects the current detection terminal to overcurrent detection resistors having different resistances in accordance with a level of the voltage detected at the current detection terminal when the voltage detected at the current detection terminal is equal to or greater than a discharge overcurrent detection voltage and a discharge overcurrent state in which an overcurrent flows from the rechargeable battery is detected.
摘要翻译： 可再充电电池的过电流保护电路包括电流检测端子和过电流返回电阻器连接部件。 在当前检测端子处检测从可再充电电池的放电电流转换的电压。 当电流检测端检测到的电压等于或大于放电过电流时，过电流返回电阻连接部分将电流检测端子连接到具有不同电阻的过电流检测电阻器， 检测电压和从可再充电电池流过过电流的放电过电流状态。
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公开(公告)号：US08513838B2
公开(公告)日：2013-08-20
申请号：US12777485
申请日：2010-05-11
CPC分类号： B25F5/008 , H02K7/145 , H02K11/33 , H02K2211/03
摘要： An electric power tool includes: a motor including a motor shaft; a tip tool driven by the motor; a housing that houses the motor; a switching element for driving the motor; and a bearing that can retain the motor shaft. The switching element is provided so as to overlap with the bearing in a direction of the motor shaft inside the housing.
摘要翻译： 电动工具包括：电动机，包括电动机轴; 由电机驱动的尖端工具; 容纳电机的房屋; 用于驱动马达的开关元件; 以及可以保持电机轴的轴承。 开关元件设置成与轴承在壳体内的电动机轴的方向上重叠。
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