封装式IR滤光片常被用作热吸收滤镜，允许可见光谱范围通过，同时几乎完全阻挡了780nm及以上的红外线。 这些IR滤光片常用于保护对红外敏感的传感器或在照明系统中使用。 封装式IR滤光片使用IR级熔融石英，与UV级熔融石英不同，它含有较少的OH-离子，从而在整个近红外光谱范围内提供更高的透射率，并减少紫外光谱的透射率。 UV/IR截止是一个多层镀膜的干涉式滤光片，能完全阻挡不需要的紫外和红外辐射。 特别推荐用于那些未安装IR滤光片（或已移除）的数字图 …

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2020年6月11日 · Adjustable lens tubes allow for the adjustment of an optic's position along the optical axis within a lens tube system. Our adjustable lens tubes with extended external threads are designed to house a Ø2" optic and offer up to 1.31" (33.3 mm) of rotating optic travel.

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