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1. 发明专利

JP2010085964A Optical sheet 审中-公开
标题翻译：光学片
公开(公告)号：JP2010085964A
公开(公告)日：2010-04-15
申请号：JP2009002672
申请日：2009-01-08
申请人： Ind Technol Res Inst , 財団法人工業技術研究院Industrial Technology Research Institute
发明人： CHENG CHIH-CHENG , LIN HUI-HSIUNG
IPC分类号： G02B5/30 , G02F1/1335 , G02F1/13363
CPC分类号： G02B5/3083 , G02B27/283
摘要： PROBLEM TO BE SOLVED: To provide various types of optical sheets, in which rays passing through the optical sheet may have a relatively high separation efficiency and a relatively high usage rate of rays in a LCD, and which can reduce energy depletion of incident rays.
SOLUTION: An optical sheet including a plurality of optical anisotropic films is provided. The optical anisotropic films are alternately stacked on one another. Each optical anisotropic film has a plurality of main axis refractive indexes nx, ny and nz. The main axis refractive indexes nx and ny are in-plane main refractive indexes and the main axis refractive index nz is a thickness-wise refractive index. The main axis refractive index nx is the minimum or the maximum among the main axis refractive indexes nx, ny and nz. Each optical anisotropic film has an optical axis, and a direction of the optical axis is the same as a main axis direction of the main axis refractive index nx. The optical axes of the optical anisotropic films sequentially rotate along a predetermined direction in a thickness direction, and the total rotation angle thereof is substantially greater than or equal to 360 degrees.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供各种类型的光学片，其中通过光学片的光线可以具有相对较高的分离效率和在LCD中相对高的光线使用率，并且可以减少能量消耗入射光线提供了包括多个光学各向异性膜的光学片。光学各向异性膜彼此交替堆叠。每个光学各向异性膜具有多个主轴折射率nx，ny和nz。主轴折射率nx和ny是面内主折射率，主轴折射率nz是厚度方向的折射率。主轴折射率nx是主轴折射率nx，ny和nz中的最小值或最大值。每个光学各向异性膜具有光轴，并且光轴的方向与主轴折射率nx的主轴方向相同。光学各向异性膜的光轴在厚度方向上沿预定方向依次旋转，其总旋转角度基本上大于或等于360度。版权所有（C）2010，JPO＆INPIT

2. 发明专利

JP2011209262A Adjusting type range finder and distance measuring method thereof 审中-公开
标题翻译：调整类型范围查找器及其距离测量方法
公开(公告)号：JP2011209262A
公开(公告)日：2011-10-20
申请号：JP2010178435
申请日：2010-08-09
申请人： Ind Technol Res Inst , 財団法人工業技術研究院Industrial Technology Research Institute
发明人： CHENG CHIH-CHENG , SO SHIGO , HU JWU-SHENG , PAO YU-NAN , HSU CHIN-JU , CHANG YEN-CHUNG
IPC分类号： G01C3/06
CPC分类号： H04N13/021 , G01C3/085 , G01C3/32 , H04N13/0235 , H04N2013/0081
摘要： PROBLEM TO BE SOLVED: To provide an adjusting type range finder and a distance measuring method thereof.SOLUTION: The adjusting type range finder and a method thereof causes a first light beam having an object video to pass through an optical deflection element and generates a second light beam having an object video. The optical deflection element includes a liquid crystal layer and a transparent type Blaze diffraction grating, and the liquid crystal layer is electrically connected to a voltage device. A first voltage is provided to the liquid crystal layer by the voltage device. The second light beam is projected to an optical image formation apparatus to form an M-th order diffracted video in which energy is concentrated. The voltage device is adjusted and the second voltage is provided to the liquid crystal layer. The second light beam is caused to form an N-th order diffracted video in the optical image formation apparatus. The M-th order diffracted video and the N-th order diffracted video forms a set of video series. An actual distance of the object from the optical deflection element is calculated, based on deviation amount of an image formation position of an object, in the set of video series.
摘要翻译：要解决的问题：提供一种调节型测距仪及其距离测量方法。解决方案：调节型测距仪及其方法使得具有物体视频的第一光束通过光学偏转元件，并产生第二光束具有物体视频。光学偏转元件包括液晶层和透明型火焰衍射光栅，并且液晶层电连接到电压装置。通过电压装置向液晶层提供第一电压。将第二光束投影到光学图像形成装置，以形成其中能量集中的M级衍射视频。调整电压装置，并向液晶层提供第二电压。使第二光束在光学图像形成装置中形成N级衍射视频。 M阶衍射视频和N阶衍射视频形成一组视频序列。基于视频序列的集合中的物体的图像形成位置的偏离量，计算物体与光学偏转元件的实际距离。

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