Structural and Optical Glass Characteristics for Basic a Planning of a Chalcogenide Aspheric Lens

2010 ◽  
Vol 57 (6(1)) ◽  
pp. 1773-1778
Author(s):  
Jun Bin Ko ◽  
Jeong-Ho Kim
Keyword(s):  
Optical Glass ◽  
Aspheric Lens

Machinability in Precision Grinding of Aspheric Optical Lens with Diamond Wheel

2007 ◽  
Vol 364-366 ◽  
pp. 1162-1167 ◽  
Author(s):  
Seung Yub Baek ◽  
Jung Hyung Lee ◽  
Eun Sang Lee ◽  
Jung Taik Lee
Keyword(s):  
Surface Roughness ◽  
Optical Glass ◽  
Diamond Wheel ◽  
Spindle Speed ◽  
Machining Parameters ◽  
Precision Grinding ◽  
Optical Lens ◽  
Aspheric Lens ◽  
Tool Marks ◽  
Machining Parameter

In order to do the precision grinding of optical aspheric lens, it is essential to achieve high quality surface roughness. Experiments show that the contacting area between the wheel and workpiece in a grinding process is critical to influence the surface roughness for a fine grit size resin bonded wheel. The precision grinding are performed with BK7 optical lens. This paper deals with the grinding of an aspheric surface optical lens by diamond wheel. This study also compares each machining parameter (work spindle speed, wheel spindle speed, feedrate, etc.) in rough grinding, fine grinding and polishing on the aspheric lens. In this study, several experiments were carried out BK7 optical glass lens by using vitrified, metal, resin bond diamond wheel and the polisher of urethane ball was used to remove the tool marks with an ultra-precision in-line grinding system. It was found that machining parameters significantly influence the surface roughness of aspheric optical lens.

Characterization of ZnSe aspheric lens

1997 ◽  
Author(s):  
Keiji Ebata ◽  
Manabu Shiozaki ◽  
Keiji Fuse ◽  
Tatsuya Kyotani
Keyword(s):  
Aspheric Lens

scholarly journals Optical glass-ceramics based on nanosized crystals of magnesium aluminate spinel doped with iron ions

2020 ◽  
Vol 1697 ◽  
pp. 012156
Author(s):  
V Bukina ◽  
O Dymshits ◽  
I Alekseeva ◽  
M Tsenter ◽  
S Zapalova ◽  
...  
Keyword(s):  
Optical Glass ◽  
Glass Ceramics ◽  
Magnesium Aluminate ◽  
Magnesium Aluminate Spinel ◽  
Iron Ions ◽  
Nanosized Crystals

Novel approach to measure the linear birefringence in bulk optical glass sensing head of current sensors

2002 ◽  
Author(s):  
Zheng Ping Wang ◽  
Qingbo Li ◽  
Huili Wang ◽  
Ruiying Feng ◽  
Zongjun Huang ◽  
...  
Keyword(s):  
Optical Glass ◽  
Linear Birefringence ◽  
Novel Approach ◽  
Current Sensors
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