Precision glass molding: an integrative approach for the production of high precision micro-optics

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

Materials Chemistry and Physics ◽

10.1016/j.matchemphys.2021.124297 ◽

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

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

10.1117/12.2080762 ◽

2015 ◽

Cited By ~ 1

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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Wafer Level Glass Molding

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.523-524.1001 ◽

2012 ◽

Vol 523-524 ◽

pp. 1001-1005 ◽

Cited By ~ 2

Author(s):

Martin Hünten ◽

Daniel Hollstegge ◽

Fritz Klocke

Keyword(s):

Wafer Level ◽

Molding Process ◽

Optical Components ◽

New Approach ◽

Glass Molding ◽

Wafer Scale ◽

Precision Glass Molding

Manufacturing of micro optical components is approached with many different technologies. In this paper it is presented how the precision glass molding process is enabled to manufacture micro optical components made out of glass. In comparison to the existing glass molding technology the new approach aims for molding entire glass wafers including multiple micro optical components. It is explained which developments in the filed of simulation, mold manufacturing and molding were accomplished in order to enable the precision glass molding on wafer scale.

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PtIr protective coating system for precision glass molding tools: Design, evaluation and mechanism of degradation

Surface and Coatings Technology ◽

10.1016/j.surfcoat.2020.125378 ◽

2020 ◽

Vol 385 ◽

pp. 125378 ◽

Cited By ~ 2

Author(s):

Marcel Friedrichs ◽

Zirong Peng ◽

Tim Grunwald ◽

Michael Rohwerder ◽

Baptiste Gault ◽

...

Keyword(s):

Protective Coating ◽

Design Evaluation ◽

Coating System ◽

Glass Molding ◽

Precision Glass Molding ◽

Mechanism Of Degradation

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

Micromachines ◽

10.3390/mi11121069 ◽

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.

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