These eliminated internal reflections and also diminished light loss on air to glass surfaces.
镀膜技术能减少内部反射并降低光线从空气经过玻璃表面的损失.
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The biggest problem with early apochromats, other than their sizable cost and complexity, was light loss.
早期APO的最大问题是光线的损失,其次是高昂的成本和制造的复杂性.
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