公开(公告)号：JP2005200293A

公开(公告)日：2005-07-28

申请号：JP2004341551

申请日：2004-11-26

Applicant: Corning Inc ,  コーニング インコーポレイテッド

Inventor： BOEK HEATHER D ,  HECKLE CHRISTINE E ,  MOLL JOHANNES ,  SMITH CHARLENE M

IPC: G02B1/00 ,  B32B9/04 ,  B32B15/00 ,  C03B8/04 ,  C03B20/00 ,  C03C3/06 ,  C03C15/00 ,  C03C17/30 ,  C03C17/32 ,  C03C19/00

CPC classification number: C03C15/00 ,  C03C17/30 ,  C03C17/32 ,  C03C19/00

Abstract: PROBLEM TO BE SOLVED: To provide a synthetic silica glass optical material having high resistance to optical damages by ultraviolet radiation in an ultraviolet wavelength range, particularly in an ultraviolet wavelength region of less than about 250 nm, and particularly exhibiting a low laser-induced density change. SOLUTION: The synthetic silica glass optical material contains aluminum of at least about 0.1 ppm and has H 2 concentration levels greater than about 0.5×10 17 molecules/cm 3 . Additionally, the synthetic silica glass optical material exhibits an H 2 to Al ratio of greater than about 1.2, as measured in 10 17 molecules/cm 3 H 2 per ppm Al. COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种在紫外线波长范围内，特别是在小于约250nm的紫外线波长范围内，通过紫外线辐射具有高抗光损伤性的合成石英玻璃光学材料，特别是表现出低激光 引起的密度变化。 解决方案：合成石英玻璃光学材料含有至少约0.1ppm的铝，并且具有大于约0.5×10 17分子/ cm 2的H 2 浓度水平， SP> 3 。 另外，合成二氧化硅玻璃光学材料表现出H 2 Al比大于约1.2，如在10分钟/厘米3 /秒SP > H 2 每ppm Al。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：DE60234124D1

公开(公告)日：2009-12-03

申请号：DE60234124

申请日：2002-12-19

Applicant: CORNING INC

Inventor： HECKLE CHRISTINE E ,  MAXON JOHN E ,  SEMPOLINSKI DANIEL RAYMOND

IPC: C03C3/06 ,  C03C4/00

Abstract: Fused silica articles containing at least 50 ppb aluminum are disclosed. The fused silica articles containing these levels of aluminum exhibit improved internal transmission and decreased absorption change when irradiated with a laser when compared with fused silica articles containing lower levels of aluminum.

公开(公告)号：AU2002359872A1

公开(公告)日：2003-07-30

申请号：AU2002359872

申请日：2002-12-19

Applicant: CORNING INC

Inventor： HECKLE CHRISTINE E ,  MAXON JOHN E

IPC: G02B1/00 ,  C03B20/00 ,  C03C3/06 ,  G02B6/13 ,  C03C4/00

Abstract: Fused silica articles exhibiting improved internal transmission and decreased absorption change when irradiated with a laser when compared with fused silica articles containing lower levels of aluminum. The articles also exhibit induced transmission when irradiated with a laser. The articles also exhibit improved off-axis refractive index homogeneity.

公开(公告)号：EP1332116A4

公开(公告)日：2005-04-13

申请号：EP01968806

申请日：2001-09-12

Applicant: CORNING INC

Inventor： BROWN JOHN T ,  DOBBINS MICHAEL S ,  HECKLE CHRISTINE E ,  MCLAY ROBERT E ,  MISRA MAHENDRA K ,  POWERS DALE R ,  WASILEWSKI MICHAEL H

IPC: C03B8/04 ,  C03B19/14 ,  C03B20/00

CPC classification number: C03B19/1423 ,  C03B19/1415 ,  C03B2201/03 ,  C03B2201/07 ,  C03B2201/21 ,  C03B2201/23 ,  C03B2207/06 ,  C03B2207/12 ,  C03B2207/20 ,  C03B2207/22 ,  C03B2207/32 ,  C03B2207/36

Abstract: A method for preparing high-purity, bulk fused silica includes supplying silane gas (11), a gaseous fuel (8), and oxygen gas (10B) to a combustion burner (14). A fuel and oxygen mixture (13) is produces when fuel (8) and oxygen gas (10A) in a premixing chamber (12). Nitrogen gas (17A) may also be supplied to the burner (14) which is located in the crown (16) of a furnace (15). Silica particles are formed by passing the silane gas into a flame formed by the combustion reaction of the gaseous fuel with the oxygen gas while maintaining the ratio of the flow rate of the gaseous fuel to the flow rate of the silane gas no less than twelve and the ratio of the flow rate of the gaseous fuel to the flow rate of the oxygen gas no less than three. Silane flow rates are controlled with a mass flow controller (51) and the flow of other gasses is monitored with flow meters (49). The silica particles formed are immediately deposited onto a hot bait (18) inside a containment vessel (21) to form a boule (19).