Lens and Optical System Device
    1.
    发明公开

    公开(公告)号:US20230168478A1

    公开(公告)日:2023-06-01

    申请号:US17916061

    申请日:2021-03-30

    CPC classification number: G02B13/18 G02B3/02 G02B5/0273 G02B5/3025

    Abstract: A lens and an optical system device are provided which can measure optical characteristics of a light source or an optical element with a simple structure. A lens 1 has an optical axis, and includes an incident surface F and an emit surface B. The incident surface F and the emit surface B are formed so as to emit incident light to the incident surface F from a first position O at an irradiation angle θ relative to the optical axis from the emit surface B at an emit angle θ/m (where m>1) relative to the optical axis by refraction at the incident surface F and at the emit surface B, and formed in such a way that apparent positions of lights emitted from the emit surface B all begin from a second position P. Moreover, an optical system device includes the lens 1 and a diffuser panel that diffuses emitted light from the lens 1.

    Light-shielding material for optical instrument
    4.
    发明授权
    Light-shielding material for optical instrument 有权
    光学仪器用遮光材料

    公开(公告)号:US09383484B2

    公开(公告)日:2016-07-05

    申请号:US14008624

    申请日:2012-02-29

    Inventor: Yasumaro Toshima

    Abstract: Provided is a light-shielding material for use in optical instrument and having a light-shielding sheet with broad low-gloss region while maintaining the physical properties necessary for a light-shielding sheet. The light-shielding material 1 comprises a light-shielding sheet 4 on a substrate 2, and the surface properties of the light-shielding sheet 4 are adjusted so as to fulfill at least one of A1 and A2, and at least one of B1 and B2. A1 is the condition that the arithmetic average roughness Sa in a three-dimensional surface roughness measurement is 0.4 or larger and 2.0 or smaller, A2 is that the ten-point average roughness Sz in a three-dimensional surface roughness measurement is 1 or larger and 20 or smaller. Defining a central plane of projections and recesses in a three-dimensional surface roughness measurement as a reference plane, Pn (n is any positive integer) as the number of projections which protrude to a plane located at a height of n times Sa from the reference plane, Pn+1 as the number of projections which protrude to a plane located at a height of (n+1) times Sa, and Rn as the ratio (Pn+1/Pn) of Pn and Pn+1, B1 is the condition that R1 is 55% or greater and R4 is 7% or greater, and B2 is the condition that at least R1 is 55% or greater, R2 is 15% or greater and R3 is 8% or greater.

    Abstract translation: 本发明提供一种用于光学仪器的遮光材料,并且具有宽的低光泽区域的遮光片,同时保持遮光片所需的物理性能。 遮光材料1包括在基板2上的遮光片4,并且调节遮光片4的表面性能以便满足A1和A2中的至少一个,并且B1和 B2。 A1是三维表面粗糙度测量中的算术平均粗糙度Sa在0.4以上且2.0以下的条件,A2是三维表面粗糙度测定中的十点平均粗糙度Sz为1以上, 20或更小。 将三维表面粗糙度测量中的突起和凹陷的中心平面定义为参考平面,Pn(n是任何正整数)作为从基准面突出到位于距离参考点n倍的高度的平面的平面的突出部的数量 平面,Pn + 1作为突出到位于第(n + 1)倍Sa的高度的平面的突出数,Rn作为Pn和Pn + 1的比(Pn + 1 / Pn),B1是 R1为55%以上且R4为7%以上的条件,B2为至少R1为55%以上,R2为15%以上且R3为8%以上的条件。

    Multiple Scattering Medium For Compressive Imaging
    5.
    发明申请
    Multiple Scattering Medium For Compressive Imaging 审中-公开
    用于压缩成像的多重散射介质

    公开(公告)号:US20150036021A1

    公开(公告)日:2015-02-05

    申请号:US14354906

    申请日:2011-11-10

    Abstract: A method for estimating an optical, electromagnetic or acoustic image having at least the successive steps of: scattering an incident optical, electromagnetic or acoustic signal using a multiple scattering medium corresponding to a known transmission matrix stored into a memory of an imaging system; measuring the scattered signal using a detector array and storing the measurements into the memory of the imaging system; and determining an estimated image having a number of image elements that is greater than the number of measurements, at full spatial bandwidth. The estimated image is determined from the measurements and the transmission matrix using a sparsity-promoting algorithm.

    Abstract translation: 一种用于估计至少具有以下连续步骤的光学,电磁或声学图像的方法:使用对应于存储在成像系统的存储器中的已知传输矩阵的多个散射介质散射入射的光学,电磁或声学信号; 使用检测器阵列测量散射信号并将测量值存储到成像系统的存储器中; 以及在全空间带宽下确定具有大于测量次数的多个图像元素的估计图像。 使用稀疏性促进算法从测量和传输矩阵确定估计图像。

    Viewing-angle-enhancing film for liquid crystal display device, protective film with viewing-angle-enhancing-function, and liquid crystal display device
    6.
    发明授权
    Viewing-angle-enhancing film for liquid crystal display device, protective film with viewing-angle-enhancing-function, and liquid crystal display device 有权
    用于液晶显示装置的视角增强膜,具有视角增强功能的保护膜和液晶显示装置

    公开(公告)号:US08736792B2

    公开(公告)日:2014-05-27

    申请号:US13497482

    申请日:2010-10-13

    Abstract: To provide a viewing-angle-enhancing film which is set in a liquid crystal display device at a position nearer to an observer than the position of a liquid crystal layer in the device, and which attains, at a high level, the compatibility of being enhanced in viewing angle with a decrease in the darkening of images at the time of observing the screen from the front thereof. A viewing-angle-enhancing film which is set in a liquid crystal display device at a position nearer to an observer than the position of a liquid crystal layer in the device, and simultaneously satisfies the following requirements (1) to (3): (1) the film has a parallel ray transmittance of 5 to 90%; (2) the film has a diffusivity (A) of 1 to 20 degrees in its main diffusion direction; and (3) the film has a diffusivity ratio of 0.25 to 15% in the main diffusion direction.

    Abstract translation: 为了提供一种视角增强膜,其设置在液晶显示装置中比装置中的液晶层的位置更靠近观察者的位置,并且高水平地实现了 在从其前方观察屏幕时图像的变暗减小而观看角度增强。 在液晶显示装置中,在比装置中的液晶层位置更靠近观察者的位置设置可视角增强膜,同时满足以下要求(1)〜(3):( 1)膜的平行光线透射率为5〜90%; (2)膜的主扩散方向的扩散度(A)为1〜20度; (3)膜的主扩散方向的扩散率为0.25〜15%。

    DIFFUSER SCREEN
    10.
    发明公开
    DIFFUSER SCREEN 审中-公开

    公开(公告)号:US20230213691A1

    公开(公告)日:2023-07-06

    申请号:US18001104

    申请日:2021-06-04

    CPC classification number: G02B5/0273 G02B27/0101 G02B5/0205

    Abstract: A optical apparatus to display an image to a user is disclosed. The apparatus comprises an image source to generate an image bearing light beam having a first numerical aperture; and a diffuser screen. The diffuser screen is configured to increase the numerical aperture of the image bearing light beam to a second numerical aperture. The diffuser screen comprises a first part comprising: a first face and second face substantially parallel to each other, a first array of a plurality of waveguides forming an optical path between the first face and the second face. A value of an optical property of each of the plurality of waveguides is selected randomly from a set of values of the optical property. The first array of a plurality of waveguides is arranged such that each of the plurality of waveguides has an optical axis that is substantially parallel to it's nearest neighbour. Substantially all the waveguides of the first array are sized below a size that would allow a single mode of visible light to propagate along each waveguide

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