Transferability of Diffractive Structure in the Compression Molding of Chalcogenide Glass
Abstract
:1. Introduction
2. Experiments and Discussion
2.1. Optical Design of the Diffractive-Aspheric Lens
2.2. Mold Fabrication and Molding of Diffractive-Aspheric Lens
2.3. Results and Discussion
3. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Term | Unit | Value |
---|---|---|
Transition temperature (Tg) | °C | 285 |
Softening temperature (Ts) | °C | 310 |
Thermal conductivity | W/m·K | 0.25 |
Thermal expansion coefficient | 10−6/K | 14 |
Process Parameters | |||||
---|---|---|---|---|---|
Preheating | Heating | Pressing | Gradual Cooling | ||
Temp. (°C) | Top plate | - | 320 | 320~335 | 200 |
Bottom plate | 280 | 320 | 320 | 200 | |
Pressure (MPa) | - | - | 0.2 | 0.05 | |
Unit-process time (s) | 300 | ||||
Molding Conditions | |||||
Condition no. | A | B | C | D | |
Temp. (°C) | 320 | 325 | 330 | 335 |
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Son, B.-R.; Kim, J.-K.; Choi, Y.-S.; Park, C. Transferability of Diffractive Structure in the Compression Molding of Chalcogenide Glass. Micromachines 2023, 14, 273. https://doi.org/10.3390/mi14020273
Son B-R, Kim J-K, Choi Y-S, Park C. Transferability of Diffractive Structure in the Compression Molding of Chalcogenide Glass. Micromachines. 2023; 14(2):273. https://doi.org/10.3390/mi14020273
Chicago/Turabian StyleSon, Byeong-Rea, Ji-Kwan Kim, Young-Soo Choi, and Changsin Park. 2023. "Transferability of Diffractive Structure in the Compression Molding of Chalcogenide Glass" Micromachines 14, no. 2: 273. https://doi.org/10.3390/mi14020273