Mounted BK7 Prism Assembly
Precision mounted BK7 glass right angle prism for periscopes, borescopes, and alignment lasers. Despite glass material, complex mounting for instruments classifies HTS 9002.90.95.00 'other'. Total internal reflection optics.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If unmounted optical prisms
Unmounted prisms classify in 9001 sheets/plates.
If laser instrument parts
Parts principally for lasers classify with apparatus per note 2.
If drawn/semi-finished glass products
Glass in drawn sheet form before optical working.
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Import Tips & Compliance
• Justify 'other' classification vs. specific glass prism codes with mounting complexity
• Include Abbe number and index of refraction specs
• Blackened edges prevent stray light reflection
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