公开(公告)号：WO03008674A3

公开(公告)日：2003-05-22

申请号：PCT/US0222927

申请日：2002-07-18

Applicant: CORNING INC

Inventor： KERDONCUFF ALAIN ,  MAYOLET ALEXANDRE M

IPC: C30B29/12 ,  C01B9/08 ,  C01F5/28 ,  C01F11/20 ,  C30B11/00 ,  C01F11/22

CPC classification number: C01F11/20 ,  C01B9/08 ,  C01F5/28 ,  C01P2004/61 ,  C01P2006/80 ,  C30B11/00 ,  C30B29/12

Abstract: The present invention relates to the manufacturing of high purity optical fluoride crystals, the making of purified optical fluoride crystal feedstocks and to the anionic purification of optical fluoride crystalline materials. The invention relates generally to methods for removing oxide impurities from optical fluoride crystal feedstocks. More specifically, the invention relates to a method for preparing purified optical fluoride crystal feedstocks and the use of the feedstock in manufacturing VUV

Abstract translation: 本发明涉及高纯度光学氟化物晶体的制造，纯化的光学氟化物晶体原料的制造以及光学氟化物晶体材料的阴离子纯化。 本发明一般涉及从光学氟化物晶体原料中除去氧化物杂质的方法。 更具体地说，本发明涉及制备纯化的光学氟化物晶体原料的方法以及该原料在制造用于VUV光刻/激光系统的VUV <200nm透射光学氟化物晶体中的用途。

公开(公告)号：DE69619682T2

公开(公告)日：2002-10-31

申请号：DE69619682

申请日：1996-08-07

Applicant: CORNING INC

Inventor： PRASSAS MICHEL ,  KERDONCUFF ALAIN ,  GILLE FRANCOIS

IPC: C03B19/02 ,  C03B17/02 ,  C03B32/00 ,  C03B37/012 ,  C03B17/06 ,  C03B13/10

Abstract: PCT No. PCT/US96/12916 Sec. 371 Date Feb. 13, 1998 Sec. 102(e) Date Feb. 13, 1998 PCT Filed Aug. 7, 1996 PCT Pub. No. WO97/09278 PCT Pub. Date Mar. 13, 1997The present invention relates to a method of making a rectangular bar have a gradient composition. In optical or ophthalmic applications, the gradient of composition ensures formation of a corresponding gradient of optical property, such as refractive index or optical density. The glass material is manufactured using a device containing several reservoirs, all designed to contain glass in the fluid state. According to the invention, the composition of the glass varies from one reservoir to the other so that the refractive indices, for example, of the three compositions are different, with an incremental progression. The fluid glass is deposited one composition on top of the next and then heated, creating a certain degree of interdiffusion between the layers. The glass is then heat-treated to create the desired property profile.

公开(公告)号：MXPA01012502A

公开(公告)日：2002-07-02

申请号：MXPA01012502

申请日：2000-04-26

Applicant: CORNING INC

Inventor： KERDONCUFF ALAIN

IPC: C03B37/023 ,  C03B37/07 ,  G02B6/00

Abstract: El nucleo de una fibra (115) se controla durante la produccion; una barra (116) se prensa sobre el vidrio del nucleo fundido (110); un sensor (126) detecta el diametro de la fibra (115), un controlador (129) controla la velocidad de extraccion y un dispositivo de control de barra (122).

公开(公告)号：FR2738237B1

公开(公告)日：1997-11-14

申请号：FR9510343

申请日：1995-09-04

Applicant: CORNING INC

Inventor： PRASSAS MICHEL ,  KERDONCUFF ALAIN ,  GILLE CLAUDE FRANCOIS MAURICE

IPC: C03B17/02 ,  C03B32/00 ,  C03B37/012 ,  C03B19/02

Abstract: According to the invention, a) at least the first and second compositions of this material in the fluid phase are prepared, b) a sheet (61) of the first composition is poured continuously onto a flat support (4), c) a sheet (62) of the second composition is poured continuously onto sheet (61) of the first composition, and d) the thermal interdiffusion of the materials of the two sheets is ensured so as to obtain the desired gradient of composition in the cooled bar.

公开(公告)号：FR2827616A1

公开(公告)日：2003-01-24

申请号：FR0109710

申请日：2001-07-20

Applicant: CORNING INC

Inventor： KERDONCUFF ALAIN ,  MAYOLET ALEXANDRE

IPC: C30B29/12 ,  C01B9/08 ,  C01F5/28 ,  C01F11/20 ,  C30B11/00

Abstract: A method for the anionic purification of an alkaline or alkaline earth metal fluoride powder consists of placing the powder in contact with a reactive gas, at a temperature lower than the melting temperature of the fluoride. The contact takes place in a fluidized bed with the powder suspended in an ascending current of a gas containing the reactive gas. The reactive gas is a fluoridation gas and is mixed with an inert gas for the fluidization operation.

公开(公告)号：DE69619682D1

公开(公告)日：2002-04-11

申请号：DE69619682

申请日：1996-08-07

Applicant: CORNING INC

Inventor： PRASSAS MICHEL ,  KERDONCUFF ALAIN ,  GILLE FRANCOIS

IPC: C03B19/02 ,  C03B17/02 ,  C03B32/00 ,  C03B37/012 ,  C03B17/06 ,  C03B13/10

Abstract: PCT No. PCT/US96/12916 Sec. 371 Date Feb. 13, 1998 Sec. 102(e) Date Feb. 13, 1998 PCT Filed Aug. 7, 1996 PCT Pub. No. WO97/09278 PCT Pub. Date Mar. 13, 1997The present invention relates to a method of making a rectangular bar have a gradient composition. In optical or ophthalmic applications, the gradient of composition ensures formation of a corresponding gradient of optical property, such as refractive index or optical density. The glass material is manufactured using a device containing several reservoirs, all designed to contain glass in the fluid state. According to the invention, the composition of the glass varies from one reservoir to the other so that the refractive indices, for example, of the three compositions are different, with an incremental progression. The fluid glass is deposited one composition on top of the next and then heated, creating a certain degree of interdiffusion between the layers. The glass is then heat-treated to create the desired property profile.

公开(公告)号：AU4804400A

公开(公告)日：2000-12-28

申请号：AU4804400

申请日：2000-04-26

Applicant: CORNING INC

Inventor： KERDONCUFF ALAIN

IPC: G02B6/00 ,  C03B37/023 ,  C03B37/07 ,  C03B37/03

Abstract: A double crucible fiber fabrication system employing a rod to control flow of the core material to produce a core of desired diameter. The rod fits closely within the inner crucible and moves at a speed necessary to produce a core material flow rate which will produce a desired core diameter. Control of the rod speed produces good control of core diameter for a wide variety of different core materials. It is also possible to control the rod speed in order to compensate for capillary effects and leakage of core material. Furthermore, control of the rod speed allows fabrication of a fiber having a core diameter which varies as desired throughout a single fiber.

公开(公告)号：FR2738237A1

公开(公告)日：1997-03-07

申请号：FR9510343

申请日：1995-09-04

Applicant: CORNING INC

Inventor： PRASSAS MICHEL ,  KERDONCUFF ALAIN ,  GILLE CLAUDE FRANCOIS MAURICE

IPC: C03B17/02 ,  C03B32/00 ,  C03B37/012 ,  C03B19/02

Abstract: Mfg. a rectangular cross-section bar made of a material with a composition gradient perpendicular to two opposite longitudinal sides of the bar, where the material doesn't melt at room temperature, comprises: (a) preparing at least two melted compositions of this material; (b) pouring continuously a sheet (61) of the first composition onto a flat support (4); (c) pouring continuously a sheet (62) of the second composition on the first sheet (61); and (d) ensuring thermal interdiffusion of the two sheets compositions to obtain the desired composition gradient in the cooled bar. Also claimed is an appts. for the mfr. of the above bar comprising: (i) a support (4) moving in a looped travel path with a flat part;(ii) a number of reservoirs (21,22,23) each receiving one of the material compositions and equipped with a bottom nozzle (31,32,33) to form a sheet (61,62,63) of the flowing material; where (iii) the reservoirs are spaced at intervals along the flat travelling part of the support (4) so that the sheets flow one onto the other. Further claimed is a preform (1i) of an optical device with an axial gradient of an optical property, cut from a bar (1) made of a vitreous material according to the above method.

公开(公告)号：EP0848688A4

公开(公告)日：1998-10-28

申请号：EP96927354

申请日：1996-08-07

Applicant: CORNING INC

Inventor： PRASSAS MICHEL ,  KERDONCUFF ALAIN ,  GILLE CLAUDE FRANCOIS MAURICE

IPC: C03B19/02 ,  C03B17/02 ,  C03B32/00 ,  C03B37/012 ,  C03B13/10

CPC classification number: C03B37/01268 ,  C03B17/02 ,  C03B17/025 ,  C03B32/00 ,  Y02P40/57 ,  Y10T428/1086 ,  Y10T428/31601

Abstract: According to the invention, a) at least the first and second compositions of this material in the fluid phase are prepared, b) a sheet (61) of the first composition is poured continuously onto a flat support (4), c) a sheet (62) of the second composition is poured continuously onto sheet (61) of the first composition, and d) the thermal interdiffusion of the materials of the two sheets is ensured so as to obtain the desired gradient of composition in the cooled bar.

Abstract translation: 根据本发明，a）制备至少流体相中该材料的第一和第二组合物，b）将第一组合物的片材（61）连续地倾倒到平面载体（4）上，c）将片材 （62）连续地倒在第一组合物的片材（61）上，并且d）确保两片材料的热互相扩散，以便在冷却的棒材中获得所需的组成梯度。