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    • 1. 发明授权
    • Method of producing optical waveguide
    • 制造光波导的方法
    • US4410345A
    • 1983-10-18
    • US295069
    • 1981-08-21
    • Yuichi UsuiShigeo MuraiShiro KurosakiMinoru Watanabe
    • Yuichi UsuiShigeo MuraiShiro KurosakiMinoru Watanabe
    • C03B37/012C03B37/018C03B37/027C03C25/02
    • C03B37/018C03B37/01211C03B37/027C03B2205/08
    • The present invention relates to a method of producing an optical waveguide by melt-drawing a transparent glass rod which has been produced by collapsing a doped porous glass rod. The glass rod is doped with refractive index enhancing dopant materials by depositing said material on the surface of the micro-pores wherein a waveguide having higher mechanical strength and lower transmission loss is obtained upon drawing said glass rod to a fiber. The drawing is performed at a temperature very close to the melting point of the outermost portion of the rod without causing any overmelting and resultant bubbling in the core portion. The drawing process is facilitated by matching the viscosity and softening characteristics of the outer, lower refractive-index portion of the rod to that of the central higher-refractive-index portion.
    • 本发明涉及一种通过熔化拉伸透明玻璃棒来制造光波导的方法,所述透明玻璃棒是通过使掺杂的多孔玻璃棒折叠而制成的。 玻璃棒通过在微孔表面上沉积所述材料来掺杂折射率增强掺杂剂材料,其中在将所述玻璃棒拉到纤维上时获得具有较高机械强度和较低传输损耗的波导。 该图在非常接近杆的最外部分的熔点的温度下进行,而不会在芯部分中引起任何过度熔化和产生的起泡。 通过将棒的外部,较低折射率部分的粘度和软化特性与中央高折射率部分的粘度和软化特性相匹配来促进拉伸过程。
    • 6. 发明授权
    • Process for the production of an optical glass article
    • 制造光学玻璃制品的方法
    • US4389233A
    • 1983-06-21
    • US301895
    • 1981-09-11
    • Shiro KurosakiMinoru Watanabe
    • Shiro KurosakiMinoru Watanabe
    • C03B37/016C03C13/04C03C23/00C03C15/02
    • C03B37/016C03C13/045C03C23/008C03B2201/30C03B2201/50Y10S65/901
    • This invention relates to a process for the production of an optical glass article, which comprises neutralizing an aqueous solution containing silicic acid to form a porous gelled body, removing soluble materials from the porous gelled body to form a porous glass body, stuffing the porous glass body with a solution containing at least one compound capable of being converted into an oxide dopant for changing the refractive index of the glass body, selected from the group consisting of CsNO.sub.3, RbNO.sub.3 and TlNO.sub.3, unstuffing the glass body with a solvent or solution having a suitable composition at a suitable temperature to leach the compound out of the outside glass body and to give a predetermined concentration distribution in the micropores of the glass body, optionally immersing the unstuffed body in an organic solvent, precipitating the compound in the micropores, drying the glass body in a predetermined atmosphere to decompose the compound, further heating at a higher temperature, and then firing at a temperature sufficiently high to completely decompose the compound and to completely burn the organic materials, but lower than the melting point of silica.
    • 本发明涉及一种制造光学玻璃制品的方法,该方法包括中和含有硅酸的水溶液以形成多孔凝胶体,从多孔凝胶体中除去可溶性材料以形成多孔玻璃体,填充多孔玻璃 具有至少一种能够转化为氧化物掺杂剂的化合物的溶液的溶液,用于改变玻璃体的折射率,所述折射率选自CsNO 3,RbNO 3和T 1 NO 3,用具有 合适的组合物在合适的温度下将化合物从外部玻璃体中浸出并在玻璃体的微孔中得到预定的浓度分布,任选地将无烟气体浸入有机溶剂中,将化合物沉淀在微孔中,干燥 玻璃体在预定的气氛中分解化合物,进一步在较高温度下加热, 然后在足够高的温度下焙烧以使化合物完全分解并完全燃烧有机材料,但低于二氧化硅的熔点。
    • 8. 发明授权
    • Image pickup apparatus and image pickup system
    • 摄像设备和摄像系统
    • US08446495B2
    • 2013-05-21
    • US12912690
    • 2010-10-26
    • Chiori MochizukiMinoru WatanabeTakamasa IshiiJun KawanabeKentaro Fujiyoshi
    • Chiori MochizukiMinoru WatanabeTakamasa IshiiJun KawanabeKentaro Fujiyoshi
    • H04N5/217G01D18/00
    • H04N5/32H04N5/361H04N5/374
    • In an image pickup apparatus including a plurality of pixels arranged a matrix of rows and columns, a correction unit performs a correction process based on an electric signal output via a first switch element of a particular pixel and a correction electric signal output via a second switch element of the particular pixel. A correction image signal based on the correction electric signal output via the second switch element is acquired in a period that partially overlaps in time a period in which an image signal based on the electric signal output via the first switch element is acquired. When the electric signal associated with the image signal is output for the particular pixel, the second switch element of the particular pixel is controlled to be in an on-state over a period during which the first switch element of the particular pixel is in an off-state.
    • 在包括排列成行和列的矩阵的多个像素的图像拾取装置中,校正单元基于经由特定像素的第一开关元件输出的电信号和经由第二开关输出的校正电信号来执行校正处理 特定像素的元素。 基于经由第二开关元件输出的校正电信号的校正图像信号在获取基于经由第一开关元件输出的电信号的图像信号的时间段的时间部分重叠的时段中被获取。 当针对特定像素输出与图像信号相关联的电信号时,特定像素的第二开关元件在特定像素的第一开关元件处于关闭状态的一段时间内被控制为导通状态 -州。