Infrared Band Pass Filter
    21.
    发明申请

    公开(公告)号:US20200057183A1

    公开(公告)日:2020-02-20

    申请号:US16508936

    申请日:2019-07-11

    Abstract: The present disclosure relates to an infrared band pass filter, which comprises a first multilayer film. The first multilayer film including a plurality of Si:NH layers and a low refraction index layer. The plurality of low refraction index layers are stacked with Si:NH layers alternatively; wherein the difference between the refraction index of Si:NH layer and the refraction index of the low refraction index layer is greater than 0.5. The infrared band pass filter has a pass band in a wavelength range of 800 nm and 1100 nm, and when the incident angle is changed from 0 degrees to 30 degrees, the center wavelength of the pass band is shifted less than 12 nm, and the infrared band pass filter of the present disclosure can be used to enhance the 3D image resolution when applied to a 3D imaging system.

    RADIOATIVE MICROSPHERE AND PREPARATION METHOD THEREOF

    公开(公告)号:US20200023088A1

    公开(公告)日:2020-01-23

    申请号:US16280366

    申请日:2019-02-20

    Abstract: Provided is a radioactive microsphere including a glass sphere core. The glass sphere core includes a first seed, a second seed and a diffusion region extending inwardly from an outer surface of the glass sphere core, with the second seed distributed in the diffusion region. The first seed and the second seed become radioactive after being activated by neutrons to produce radiations including β-rays or γ-rays, or simultaneously β-rays and γ-rays. A preparation method of a radioactive microsphere is also provided.

    ABSORPTION TYPE NEAR INFRARED FILTER
    23.
    发明申请

    公开(公告)号:US20190187348A1

    公开(公告)日:2019-06-20

    申请号:US16224728

    申请日:2018-12-18

    CPC classification number: G02B5/282 G01N21/359 G02B5/208

    Abstract: An absorption type near-infrared filter comprising a first multilayer film, a second multilayer film, and an absorption film comprising an infrared absorbing dye with a weight percentage between 1% and 3%, wherein in the infrared band, the difference between the wavelength with the transmittance at 80% of the absorption film and the wavelength with the reflectivity at 80% of the first multilayer film ranges between 130 nm and 145 nm; the difference between the wavelength with the transmittance at 50% of the absorption film and the wavelength with the reflectivity at 50% of the first multilayer film ranges between 75 nm and 90 nm; the difference between the wavelength with the transmittance at 20% of the absorption film and the wavelength with the reflectivity at 20% of the first multilayer film ranges between 25 nm and 45 nm.

    Near-infrared absorbing filter and image sensor

    公开(公告)号:US10184827B2

    公开(公告)日:2019-01-22

    申请号:US15299113

    申请日:2016-10-20

    Abstract: The present disclosure provides a near-infrared absorbing filter, including an absorbing type infrared filtering medium having opposite first and second surfaces; an organic coating layer formed on the first surface of the absorbing type filtering medium for absorbing infrared rays; a first multi-layered film structure formed on the organic coating layer with the organic coating layer disposed between the first multi-layered film structure and the absorbing type infrared filtering medium; and a second multi-layered film structure formed on the second surface of the absorbing type infrared filtering medium. The near-infrared filter of the present disclosure is able to reduce the wavelength difference of T50 and T20 of the incident light within the range of from 0 to 30 degrees to less than 5 nm, thereby reducing chromatic aberration effectively and reducing ghost images of infrared reflections. The disclosure further provides an image sensor including the near-infrared absorbing filter.

    NEAR-INFRARED ABSORBING FILTER AND IMAGE SENSOR

    公开(公告)号:US20170322076A1

    公开(公告)日:2017-11-09

    申请号:US15299113

    申请日:2016-10-20

    Abstract: The present disclosure provides a near-infrared absorbing filter, including an absorbing type infrared filtering medium having opposite first and second surfaces; an organic coating layer formed on the first surface of the absorbing type filtering medium for absorbing infrared rays; a first multi-layered film structure formed on the organic coating layer with the organic coating layer disposed between the first multi-layered film structure and the absorbing type infrared filtering medium; and a second multi-layered film structure formed on the second surface of the absorbing type infrared filtering medium. The near-infrared filter of the present disclosure is able to reduce the wavelength difference of T50 and T20 of the incident light within the range of from 0 to 30 degrees to less than 5 nm, thereby reducing chromatic aberration effectively and reducing ghost images of infrared reflections. The disclosure further provides an image sensor including the near-infrared absorbing filter.

    HIGH MAGNETIC FIELD-TYPE MULTI-PASS FARADAY ROTATOR
    27.
    发明申请
    HIGH MAGNETIC FIELD-TYPE MULTI-PASS FARADAY ROTATOR 审中-公开
    高磁场型多通道FARADAY旋转机

    公开(公告)号:US20150124318A1

    公开(公告)日:2015-05-07

    申请号:US14524846

    申请日:2014-10-27

    CPC classification number: G02F1/093 G02F2201/17

    Abstract: A multi-pass-type Faraday rotator useful in an optical isolator is provisioned with high-efficiency, high-field permanent magnets formed with minimal magnetic material. A high magnetic field is generated by two sets of magnets attached to outer pole plates that are mirror images of each other. Like-type poles of the magnets in each set are disposed against each other above and below the beam path plane of a multi-pass Faraday optic. Each set of magnets is formed of a central block of magnetic material with magnetization oriented substantially parallel to the multi-pass beam path on the Faraday optic, adjoined by adjacent blocks of magnetic material with magnetization oriented substantially perpendicular to the central magnet block and with like poles to the central magnet block where the magnets border the multi-pass Faraday optic.

    Abstract translation: 用于光隔离器的多通式法拉第旋转器配备有由最小磁性材料形成的高效高场永磁体。 高磁场是由连接到外极板上的两组磁体产生的,它们是彼此的镜像。 每个组中的磁体的类似磁极彼此相对设置在多通道法拉第光学器件的光束路径平面上方和下方。 每组磁体由磁性材料的中心块形成,其磁化取向为基本上平行于法拉第光学器件上的多遍光束路径,与邻近的磁性材料块邻接,磁化方向基本上垂直于中心磁体块并具有相似的磁化方向 磁铁与中心磁体块相连,磁铁与多通道法拉第光学器件相接。

    POWER SCALABLE MULTI-PASS FARADAY ROTATOR
    28.
    发明申请
    POWER SCALABLE MULTI-PASS FARADAY ROTATOR 审中-公开
    功率可调多通道FARADAY ROTATOR

    公开(公告)号:US20140218795A1

    公开(公告)日:2014-08-07

    申请号:US14167695

    申请日:2014-01-29

    Inventor: David Scerbak

    CPC classification number: G02F1/093 G02F2201/17 G02F2203/60

    Abstract: Transparent heat-conductive layers of significant thickness are bonded or adhered to opposing optical faces of a Faraday optic to form a Faraday optic structure that can be used with beam-folding mirrors and an external magnetic field to form a multi-pass Faraday rotator with minimal thermal gradient across the beam within the Faraday optic. The transparent heat conductive layers conduct heat through the Faraday optic substantially parallel to the beam propagation axis for each pass through the Faraday optic structure and thereby reduce thermal gradients across the beam cross section that would otherwise contribute to thermal lens focal shifts and thermal birefringence in the Faraday optic structure. The multi-pass Faraday rotator of this invention is suitable for use with any device based upon the Faraday effect such as optical isolators, optical circulators and Faraday mirrors that are scalable with beam size to power levels in excess of 2 kW.

    Abstract translation: 具有相当厚度的透明导热层被结合或粘附到法拉第光学器件的相对的光学面上,以形成法拉第光学结构,该结构可用于光束折射镜和外部磁场,以形成具有最小的多通法拉第旋光器 法拉第光学元件内横梁的热梯度。 透明导热层通过法拉第光学器件基本上平行于光束传播轴线传导热量,用于每次通过法拉第光学结构,从而减少横截面上的热梯度,否则这将导致热透镜焦点偏移和热双折射 法拉第光学结构。 本发明的多通法拉第旋转器适用于基于法拉第效应的任何装置,例如光学隔离器,光学循环器和法拉第反射镜,其具有可扩展的光束尺寸至功率水平超过2kW。

    Method of making high resolution image transmitting fiber optics bundles
    30.
    发明授权
    Method of making high resolution image transmitting fiber optics bundles 失效
    制造高分辨率图像传输光纤光栅阵列的方法

    公开(公告)号:US3690853A

    公开(公告)日:1972-09-12

    申请号:US3690853D

    申请日:1970-08-19

    Inventor: LAW JACK M

    CPC classification number: C03B37/028

    Abstract: A LARGE NUMBER OF LIGHT-TRANSMITTING CONVENTIONALLY CLAD GLASS RODS ENVELOPED OR SUPERCLADDED WITH A BONDIING MATERIAL ARE GATHERED, ALIGNED, HEATED AND STRETCHED WHILE MAINTAINED IN ALIGMENT TO REDUCE THEIR DIAMETER AND BOND THEM TO EACH OTHER TO FORM A BUNDLE OF MUTUALLY ALIGNED FIBERS. THE MATERIAL FOR THE LIGHT-TRANSMITTING RODS IS SELECTED SO THAT IT WITHSTANDS A CHEMICAL SOLUTION IN WHICH THE BONDING MATERIAL IS SOLUBLE. INTERMEDIATE PORTIONS OF THE ROD ARE IMMERSED IN THE SOLUTION TO DISSOLVE THE BONDING MATERIAL FROM BETWEEN THE INDIVIDUAL FIBERS WHILE THE ENDS OF THE FIBERS REMAINS EMBEDDED THEREIN, FIXED WITH RESPECT TO EACH OTHER AND IN THEIR ORIGINAL, MUTUALLY ALIGNED POSITION.

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