Precision glass molding of complex shaped chalcogenide glass lenses for IR applications

2016 ◽  
Author(s):  
Jan-Helge Staasmeyer ◽  
Yang Wang ◽  
Gang Liu ◽  
Olaf Dambon ◽  
Fritz Klocke
Keyword(s):  
Chalcogenide Glass ◽  
Glass Molding ◽  
Precision Glass Molding ◽  
Glass Lenses

scholarly journals Pre-Compensation of Mold in Precision Glass Molding Based on Mathematical Analysis

Micromachines ◽  
2020 ◽  
Vol 11 (12) ◽  
pp. 1069
Author(s):  
Yue Zhang ◽  
Kaiyuan You ◽  
Fengzhou Fang
Keyword(s):  
Mathematical Analysis ◽  
High Surface ◽  
Form Error ◽  
Fictive Temperature ◽  
Glass Molding ◽  
Precision Glass Molding ◽  
Compensation Factor ◽  
Expansion Curve ◽  
Glass Lenses ◽  
Main Factor

Precision glass molding is the most appropriate method for batch production of glass lenses with high surface accuracy and qualified optical performance. However, the form error caused by material expansion and contraction is the main factor affecting the precision of the molded lenses, thus the mold must be pre-compensated. In this paper, an effective method of mold pre-compensation based on mathematical analysis is established. Based on the thermal expansion curve of D-ZK3 glass, the freezing fictive temperature of the glass under the actual cooling rate is measured, and the mold pre-compensation factor can be quickly calculated. Experimental results show that the peak valley (PV) value of the surface form error of molded aspheric lens with an aperture of 5.3 mm is effectively reduced from 2.04 μm to 0.31 μm after the pre-compensation, thus meeting the geometric evaluation criterion.

scholarly journals A Review of the Precision Glass Molding of Chalcogenide Glass (ChG) for Infrared Optics

Micromachines ◽  
2018 ◽  
Vol 9 (7) ◽  
pp. 337 ◽  
Author(s):  
Tianfeng Zhou ◽  
Zhanchen Zhu ◽  
Xiaohua Liu ◽  
Zhiqiang Liang ◽  
Xibin Wang
Keyword(s):  
Chalcogenide Glass ◽  
Glass Molding ◽  
Infrared Optics ◽  
Precision Glass Molding

scholarly journals Design and Fabrication of Low Cost Infrared Optical System Using Precision Glass Molding Lens Made by Chalcogenide Glass

2012 ◽  
Vol 23 (4) ◽  
pp. 154-158
Author(s):  
Seung Eun Oh ◽  
Sun Kyu Lee ◽  
Joong Kyu Choi ◽  
Kook Hyun Song ◽  
Jong Sik Baek
Keyword(s):  
Chalcogenide Glass ◽  
Optical System ◽  
Low Cost ◽  
Glass Molding ◽  
Precision Glass Molding

Annealed high-phosphorus electroless Ni–P coatings for producing molds for precision glass molding

2021 ◽  
Vol 262 ◽  
pp. 124297
Author(s):  
Qian Yu ◽  
Tianfeng Zhou ◽  
Yupeng He ◽  
Peng Liu ◽  
Xibin Wang ◽  
...  
Keyword(s):  
Glass Molding ◽  
Precision Glass Molding ◽  
High Phosphorus ◽  
Electroless Ni

Multilevel micro-structuring of glassy carbon for precision glass molding of diffractive optical elements

2015 ◽  
Author(s):  
Karin Prater ◽  
Julia Dukwen ◽  
Toralf Scharf ◽  
Hans Peter Herzig ◽  
Sven Plöger ◽  
...  
Keyword(s):  
Glassy Carbon ◽  
Diffractive Optical Elements ◽  
Optical Elements ◽  
Glass Molding ◽  
Precision Glass Molding ◽  
Micro Structuring
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