Journal of Applied Optics, Volume. 43, Issue 4, 760(2022)
Mold design and pre-compensation of precision molding for diffractive optical elements
Figures & Tables(11)
Fig. 6. Molded diffractive sample and filling state of its diffractive band
Fig. 7. Comparison of molded surface shape of elements and theoretical surface shape
Table 1. Molding process parameters and meanings
View tableView in ArticleTable 1. Molding process parameters and meanings
序号 参数 含义 1 T1 模压温度 2 T2 模压结束温度 3 T3 缓冷结束温度 4 T4 保压结束时温度 5 T5 最终冷却温度 6 ST1 均温时间 7 Vcooling 缓冷速率 8 P1 模压压力 9 P2 保压压力1 10 P3 保压压力2 11 PT1 P1阶段持续时间 12 PT2 P2阶段持续时间 13 PT3 P3阶段持续时间
Table 2. Design parameters of diffractive profile
View tableView in ArticleTable 2. Design parameters of diffractive profile
参数 值 参数 值 CC 0 n1 2.7781 k 0 n2 1 A −2.300081e-5 λ0 0.01 B 2.428109e-7 C1 −7.64024e-4 C 4.104299e-10 C2 6.36616e-7 D −2.101422e-12 HOR 1
Table 3. Parameters of diffractive profile after simulation and compensation
View tableView in ArticleTable 3. Parameters of diffractive profile after simulation and compensation
参数 值 参数 值 CC 1.53e-10 n1 2.7781 k 1.97e-18 n2 1 A 4.4335e-4 λ0 0.01 B −1.3974e-5 C1 −7.64024e-4 C 1.5318e-7 C2 6.36616e-7 D −5.6902e-10
Table 4. Parameter values of molding process for optimized diffractive optical elements
View tableView in ArticleTable 4. Parameter values of molding process for optimized diffractive optical elements
参数 值 参数 值 T1/℃ 235 P1/kN 0.2 T2/℃ 235 P2/kN 0.1 T3/℃ 180 P3/kN 0.1 T4/℃ 100 PT1/s 80 T5/℃ 50 PT2/s 100 ST1/s 1 000 PT3/s 80 Vcooling/℃/s 0.1
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Yunlong ZHANG, Mingyin JIAO, Zhibin WANG, Feng ZHANG, Zheng ZHANG. Mold design and pre-compensation of precision molding for diffractive optical elements[J]. Journal of Applied Optics, 2022, 43(4): 760
Paper Information
Category: OPTICAL ELEMENT AND FABRICATION
Received: --
Accepted: --
Published Online: Aug. 10, 2022
The Author Email: WANG Zhibin (wang10310@126.com)
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