Title:
光学結晶内局所構造判定方法
Document Type and Number:
Japanese Patent JP4260555
Kind Code:
B2
Abstract:
Method for detecting local structures in optical materials, especially crystals, whereby in a first step schlieren and optical inhomogeneities are detected using divergent white light, while in a second step polarized laser light is used with stress birefringence to detect local defects and structural defects with spatial resolution of at least 0.5 mm and in a third step an interferometric examination of the material is executed.
Inventors:
Ewald Mersen
Accel Engel
Christian Remke
Gunter Gravosch
Accel Engel
Christian Remke
Gunter Gravosch
Application Number:
JP2003174243A
Publication Date:
April 30, 2009
Filing Date:
June 19, 2003
Export Citation:
Assignee:
Schott AG
International Classes:
G01B11/30; G01N21/958; G01M11/00; G01N21/23; G01N21/45; G01N21/896; G03F7/20
Domestic Patent References:
| JP5302936A | ||||
| JP2002504673A | ||||
| JP11513481A | ||||
| JP3653591B2 | ||||
| JP11201895A | ||||
| JP9229870A | ||||
| JP6288930A | ||||
| JP10267831A | ||||
| JP59180650U | ||||
| JP62073140A | ||||
| JP2000009654A | ||||
| JP2158383A |
Other References:
V.S.Doladugina,Effect of rounding and drilling on the optical characteristics of fluorite items,Journal of Optical Technology,2001年 7月,Vol.68 No.7,pp.471-475
Attorney, Agent or Firm:
Tadashi Hamamoto