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    • 12. 发明授权
    • Optical grating-based filter
    • 基于光栅的滤光片
    • US06834142B2
    • 2004-12-21
    • US10098890
    • 2002-03-15
    • Timothy J. BaileyMartin A. PutnamJay W. DawsonJoseph PintoJames S. SirkisPaul S. Szczepanek
    • Timothy J. BaileyMartin A. PutnamJay W. DawsonJoseph PintoJames S. SirkisPaul S. Szczepanek
    • G02B602
    • G02B6/2932G02B6/02176G02B6/0218G02B6/022G02B6/266G02B6/29322G02B6/29323G02B6/29395G02B6/29398
    • An optical filter for filtering a spectral profile of an optical signal for providing an output signal having a desire gain profile, such as a flatten gain profile. The filter comprises an optical waveguide that includes a core disposed within a cladding having an outer dimension greater than 0.3 mm. A Bragg grating is imparted or written in the core of the waveguide that attenuates the received optical input signal in accordance with a defined reflection or transmission filter profile. The Bragg grating may be a slanted grating. The filter profile is complementary to the spectral gain profile of the input signal to provide an output signal having a substantially flat spectral profile of a desired wavelength band. The cladding of the waveguide may have a mechanically advantageous outer geometry (e.g., a “dogbone” shape) for allowing an axial compressive force to tune the Bragg grating. The waveguide may be package within an athermal device, which tunes the grating to compensate for temperature dependent changes. Further, the waveguide may be packaged in a tuning device to selective tune the gratings to shift the center wavelength of the spectral profile of the filter, or to change the shape of the filter profile.
    • 一种滤光器,用于对光信号的光谱分布进行滤波,以提供具有期望增益分布的输出信号,例如平坦增益分布。 滤波器包括光波导,其包括设置在具有大于0.3mm的外部尺寸的包层内的芯。 布拉格光栅被传递或写入波导的核心,根据定义的反射或透射滤波器轮廓衰减接收到的光输入信号。 布拉格光栅可以是倾斜光栅。 滤波器曲线与输入信号的频谱增益分布互补,以提供具有期望波长带的基本上平坦的谱分布的输出信号。 波导的包层可以具有机械有利的外部几何形状(例如,“狗骨”形状),用于允许轴向压缩力调谐布拉格光栅。 波导可以封装在无热器件中,其调谐光栅以补偿温度依赖的变化。 此外,波导可以封装在调谐装置中以选择性调谐光栅以移动滤光器的光谱分布的中心波长,或者改变滤光片的形状。
    • 14. 发明申请
    • METHOD OF READING ENCODED PARTICLES
    • 读取编码颗粒的方法
    • US20110033948A9
    • 2011-02-10
    • US11544309
    • 2006-10-06
    • John A. MoonMartin A. Putnam
    • John A. MoonMartin A. Putnam
    • G01N21/00
    • G01N21/6428G01N21/645Y10T436/143333
    • Microparticles 8 includes an optical substrate 10 having at least one diffraction grating 12 disposed therein. The grating 12 having a plurality of colocated pitches Λ which represent a unique identification digital code that is detected when illuminated by incident light 24. The incident light 24 may be directed transversely from the side of the substrate 10 with a narrow band (single wavelength) or multiple wavelength source, in which case the code is represented by a spatial distribution of light or a wavelength spectrum, respectively. The code may be digital binary or may be other numerical bases. The micro-particles 8 can provide a large number of unique codes, e.g., greater than 67 million codes, and can withstand harsh environments. The micro-particles 8 are functionalized by coating them with a material/substance of interest, which are then used to perform multiplexed experiments involving chemical processes, e.g., DNA testing and combinatorial chemistry.
    • 微粒8包括其中设置有至少一个衍射光栅12的光学基板10。 光栅12具有多个共同定位的间距Λ,其表示当被入射光24照射时检测到的唯一识别数字码。入射光24可以从基底10的侧面以窄带(单波长)横向地引导, 或多个波长源,在这种情况下,代码分别由光或波长光谱的空间分布表示。 代码可以是数字二进制的,也可以是其他的数字基础。 微粒子8可以提供大量唯一的代码,例如大于6700万个代码,并且可以承受恶劣的环境。 通过用感兴趣的材料/物质涂覆微粒8来进行官能化,然后将其用于进行涉及化学过程(例如DNA测试和组合化学)的复合实验。
    • 19. 发明申请
    • Method of reading encoded particles
    • 读取编码粒子的方法
    • US20080085565A1
    • 2008-04-10
    • US11544309
    • 2006-10-06
    • John A. MoonMartin A. Putnam
    • John A. MoonMartin A. Putnam
    • G01N21/00
    • G01N21/6428G01N21/645Y10T436/143333
    • Microparticles 8 includes an optical substrate 10 having at least one diffraction grating 12 disposed therein. The grating 12 having a plurality of colocated pitches Λ which represent a unique identification digital code that is detected when illuminated by incident light 24. The incident light 24 may be directed transversely from the side of the substrate 10 with a narrow band (single wavelength) or multiple wavelength source, in which case the code is represented by a spatial distribution of light or a wavelength spectrum, respectively. The code may be digital binary or may be other numerical bases. The micro-particles 8 can provide a large number of unique codes, e.g., greater than 67 million codes, and can withstand harsh environments. The micro-particles 8 are functionalized by coating them with a material/substance of interest, which are then used to perform multiplexed experiments involving chemical processes, e.g., DNA testing and combinatorial chemistry.
    • 微粒8包括其中设置有至少一个衍射光栅12的光学基板10。 光栅12具有多个共同定位的间距λ,它们表示当被入射光24照射时检测到的唯一识别数字码。 入射光24可以以窄带(单波长)或多个波长源从基板10的侧面横向地引导,在这种情况下,代码分别由光或波长光谱的空间分布表示。 代码可以是数字二进制的,也可以是其他的数字基础。 微粒子8可以提供大量唯一的代码,例如大于6700万个代码,并且可以承受恶劣的环境。 通过用感兴趣的材料/物质涂覆微粒8来进行官能化,然后将其用于进行涉及化学过程(例如DNA测试和组合化学)的复合实验。