高折射率高色散光学玻璃在目前小型化和数字化的光学设计中的用途越来越广。

Optical glass with high refractive index and high dispersion are used more and more as optical design trend to miniaturization and digital.

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分析了系统杂散光的来源，得出非成像光束对系统影响较大、平板玻璃窗产生的鬼像不容忽视的结论。

We analyzed the stray light source of system and drew a conclusion that non-image beam has great effect on system qualities and system ghost images caused by parallel Windows should not be ignored.

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镜头玻璃表面的真空沉淀镀膜减少了最终成像上令人头疼的反射光线和杂散光，同时也为今天复杂光学系统扫清了道路。

This vacuum-deposited coating on the lens's glass surfaces reduces bothersome reflections and stray light in the image, and paved the way for today's highly complex optical systems.

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