Method for producing optical glass
    1.
    发明授权
    Method for producing optical glass 失效
    光学玻璃的制造方法

    公开(公告)号:US4324576A

    公开(公告)日:1982-04-13

    申请号:US209711

    申请日:1980-11-21

    摘要: A method for producing optical glass, which comprises charging a mixed solution capable of forming a high-silica-content gel by hydrolysis reaction into a vessel, the inner wall face of which is composed of a material unwettable to the mixed solution, such as a fluorocarbon resin or silicone resin, causing gelation of the mixed solution in the vessel, drying the obtained gel, and heating and sintering the obtained dry gel. When electrodes are placed in the mixed solution at the gelation step and an electric voltage is applied, the time required for formation of the gel is shortened. Furthermore, at the gel-drying step, if the amount of materials evaporated from the gel is detected or the weight of the gel is measured, the detected amount of the evaporated materials or the change of the weight of the gel is fed back to a factor regulating the drying speed, such as the drying temperature to control the drying speed to an appropriate level.

    摘要翻译: 一种光学玻璃的制造方法,其特征在于,将能够通过水解反应形成高二氧化硅含量凝胶的混合溶液装入容器内,该容器的内壁面由不能混合的溶液的材料构成, 氟树脂或有机硅树脂,使混合溶液凝胶化,容器干燥,加热烧结得到的干凝胶。 当在凝胶化步骤中将电极置于混合溶液中并施加电压时,形成凝胶所需的时间缩短。 此外,在凝胶干燥步骤中,如果检测到从凝胶蒸发的材料的量或测量凝胶的重量,则将检测到的蒸发材料量或凝胶重量的改变反馈至 调节干燥速度的因素,如干燥温度,将干燥速度控制在适当的水平。

    Method for producing silica glass
    4.
    发明授权
    Method for producing silica glass 失效
    石英玻璃生产方法

    公开(公告)号:US4317668A

    公开(公告)日:1982-03-02

    申请号:US226876

    申请日:1981-01-21

    摘要: A method for producing silica glass wherein a dry silica gel subjected to a water desorption treatment and a carbon removal treatment is heated and has its temperature raised in an atmosphere containing chlorine, to perform a hydroxyl group removal treatment, the resultant silica gel is thereafter heated to a temperature of approximately 1,000.degree. C.-1,100.degree. C. in an atmosphere containing at least 1% of oxygen, to perform a chlorine removal treatment, and the resultant silica gel is further heated to a temperature of 1,050.degree. C.-1,300.degree. C. in He or in vacuum, to perform a sintering treatment. The silica glass thus produced does not form bubbles even when heated to high temperatures of or above 1,300.degree. C. Therefore, it is easily worked and it is free from the lowering of transparency attributed to the bubble formation.

    摘要翻译: 将经过水解吸处理和除碳处理的干燥硅胶加热并在含氯气氛中升温的硅石玻璃的制造方法进行羟基去除处理,然后将所得硅胶加热 在含有至少1%氧气的气氛中温度为约1000℃-111℃,进行除氯处理,所得硅胶进一步加热至1050℃-1.300℃ 在He中或在真空中进行烧结处理。 即使加热到1300℃以上的高温,这样制造的石英玻璃也不会形成气泡。因此,容易加工,并且不会降低由于气泡形成引起的透明度。

    Method for producing optical fiber preform
    5.
    发明授权
    Method for producing optical fiber preform 失效
    光纤预制棒的制造方法

    公开(公告)号:US4259101A

    公开(公告)日:1981-03-31

    申请号:US17025

    申请日:1979-03-02

    CPC分类号: C03B37/01406

    摘要: A method for producing an optical fiber preform comprising the steps of blowing, through at least one nozzle, gaseous material producing glass material soot by a CVD reaction to permit the glass material soot to be deposited on a target to produce a soot rod which grows in size, and heating and rendering transparent the soot rod produced in the first step, wherein a pipe is arranged substantially concentrically with the glass material soot so as to permit gas to flow through a clearance between the deposited glass material soot and the inner wall surface of the pipe in a direction in which the soot rod grows in size. The method makes it possible to prevent the outer peripheral portion of the soot rod from becoming porous and to satisfactorily control the diameter of the soot rod.

    摘要翻译: 一种制造光纤预制棒的方法,包括以下步骤:通过至少一个喷嘴吹送通过CVD反应产生玻璃材料烟灰的气态材料,以允许玻璃材料烟灰沉积在目标上以产生烟炱棒,其生长在 尺寸和加热并使第一步骤中产生的烟灰杆透明,其中管道与玻璃材料烟灰基本上同心地布置,以允许气体流过沉积的玻璃材料烟灰和内壁表面之间的间隙 管子在烟炱杆生长的方向上。 该方法可以防止烟炱杆的外周部变得多孔,并且令人满意地控制烟炱杆的直径。

    Method of producing optical fiber
    7.
    发明授权
    Method of producing optical fiber 失效
    生产光纤的方法

    公开(公告)号:US4203743A

    公开(公告)日:1980-05-20

    申请号:US933672

    申请日:1978-08-14

    摘要: A method of producing an optical fiber comprising (i) the step of depositing a glass film of desired refractive index onto the inner wall surface of a quartz tube by the CVD (chemical vapor deposition) process, (ii) the step of heating the quartz tube to a high temperature while the gas of a compound which forms an oxide, enhancing the refractive index of the glass film, in an oxidizing atmosphere at the high temperature is kept flowing into the quartz tube along with an oxidizing gas, (iii) the step of heating and collapsing the quartz tube into a solid rod or the so-called preform, and (iv) the step of heating and drawing the optical fiber preform into the optical fiber.In the optical fiber produced by this method of manufacture, the lowering of the refractive index of the central part of the optical fiber is sharply reduced.At the step (iii), one end of the quartz tube is sealed and a gas is introduced into the tube from the other end so as to slightly raise the internal pressure of the tube, whereby a more favorable result is obtained.

    摘要翻译: 一种制造光纤的方法,包括(i)通过CVD(化学气相沉积)工艺在石英管的内壁表面上沉积所需折射率的玻璃膜的步骤,(ii)加热石英的步骤 在高温下在氧化气氛中形成氧化物的化合物的气体(在玻璃膜的氧化气氛中)的气体与氧化气体一起流入石英管中,(iii) 将石英管加热和塌缩成实心棒或所谓的预制件的步骤,以及(iv)将光纤预制件加热和拉制成光纤的步骤。 在通过该制造方法制造的光纤中,光纤的中心部分的折射率的降低急剧降低。 在步骤(iii)中,密封石英管的一端,从另一端引入气体,从而稍微升高管的内压,得到更好的结果。

    Optical fiber and method for producing the same
    8.
    发明授权
    Optical fiber and method for producing the same 失效
    光纤及其制造方法

    公开(公告)号:US4206968A

    公开(公告)日:1980-06-10

    申请号:US874420

    申请日:1978-02-02

    摘要: A method for producing an optical fiber comprises (i) the step of depositing a barrier layer on the inner wall surface of a glass tube by the CVD (chemical vapor deposition) process, said barrier layer being capable of preventing the diffusion of impurities and being made of high-silica glass which has a refractive index that is substantially equal to that of the glass tube and which contains at least one substance for lowering the refractive index of silica and at least one substance for raising the refractive index of silica, (ii) the step of depositing a glass film of desired refractive index on the barrier layer by the CVD process, (iii) the step of heating and collapsing the resultant glass tube into a composite rod or the so-called optical fiber preform, and (iv) the step of heating and drawing said optical fiber preform into the optical fiber, whereby the optical fiber which has the impurity diffusion-preventing layer between the core and the outside glass layer can be easily produced.

    摘要翻译: 制造光纤的方法包括:(i)通过CVD(化学气相沉积)工艺在玻璃管的内壁表面上沉积阻挡层的步骤,所述阻挡层能够防止杂质的扩散,并且 由高二氧化硅玻璃制成,其折射率基本上等于玻璃管的折射率,并且含有至少一种用于降低二氧化硅和至少一种用于提高二氧化硅的折射率的物质的物质(ii) )通过CVD工艺在阻挡层上沉积所需折射率的玻璃膜的步骤,(iii)将所得玻璃管加热和塌缩成复合棒或所谓的光纤预制件的步骤,(iv )将所述光纤预制件加热和拉制成光纤的步骤,由此在核心和外部玻璃层之间具有杂质扩散防止层的光纤可以容易地 引起

    Temperature-compensated magnetic field measuring instrument
    9.
    发明授权
    Temperature-compensated magnetic field measuring instrument 失效
    温度补偿磁场测量仪

    公开(公告)号:US4604577A

    公开(公告)日:1986-08-05

    申请号:US462765

    申请日:1983-02-01

    CPC分类号: G02F1/0036 G01R33/0322

    摘要: A measuring instrument of magnetic field utilizing Faraday rotation is disclosed in which a medium exhibiting Faraday rotation includes at least one thin magnetic garnet film magnetized in a propagation direction of light and having a composition expressed by a general formula R.sub.3-x Q.sub.x (Fe.sub.5-y M.sub.y)O.sub.12 (where R indicates at least one element selected from a group consisting of Y, La, Lu, Ca, Sm and Bi, Q indicates at least one element selected from a group consisting of Gd, Eu, Er, Tm, Tb, Yb, Ho and Dy, M is at least one element selected from a group consisting of Ga, Al, Ge, Si, Sc, Mn, In, V and Cr, the value of x lies in a range expressed by a formula 0.1.ltoreq.x.ltoreq.3.0, and the value of y lies in a range expressed by a formula 0.ltoreq.y.ltoreq.5.0). According to this instrument, stable measured values are obtained independently of temperature variation.

    摘要翻译: 公开了利用法拉第旋转的磁场测量仪器,其中显示法拉第旋转的介质包括在光传播方向上被磁化并具有通式R3-xQx(Fe5-yMy)表示的组成的至少一个薄磁石榴石薄膜, O12(其中R表示选自Y,La,Lu,Ca,Sm和Bi中的至少一种元素,Q表示选自由Gd,Eu,Er,Tm,Tb,Yb组成的组中的至少一种元素) ,Ho和Dy,M是选自Ga,Al,Ge,Si,Sc,Mn,In,V和Cr中的至少一种元素,x的值在由式0.1表示的范围内, = x <= 3.0,y的值位于由公式0表示的范围内。 根据该仪器,独立于温度变化获得稳定的测量值。

    Method of producing optical fiber preform
    10.
    发明授权
    Method of producing optical fiber preform 失效
    生产光纤预制棒的方法

    公开(公告)号:US4505729A

    公开(公告)日:1985-03-19

    申请号:US542186

    申请日:1983-10-14

    摘要: A method of producing a preform for a single-polarization optical fiber wherein a glass rod to become a core or a glass rod to become a clad is inserted into a quartz tube which has on its inner wall surface a glass thin film to become a clad layer, a glass thin film to become a jacket layer or glass films to become a jacket layer and a clad layer, and wherein under a state under which the internal pressure of the quartz tube is reduced, the quartz tube is heated to become solid, whereby at least one of the clad and the jacket of the optical fiber preform becomes elliptic in cross section.

    摘要翻译: 一种制造用于单极化光纤的预成型体的方法,其中将成为芯的玻璃棒或成为包层的玻璃棒插入到其内壁表面上具有玻璃薄膜以成为包层的石英管中 层,成为护套层的玻璃薄膜或成为护套层和覆盖层的玻璃膜,并且其中在石英管的内部压力降低的状态下,石英管被加热变得固体, 由此光纤预制件的包层和护套中的至少一个横截面变为椭圆形。