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9001.90.50.00/Abbe-Koenig Prism/Japan

Abbe-Koenig Prism from Japan

Porro-type prism with air-spaced roof surfaces providing total internal reflection while maintaining high light transmission. Falls under HTS 9001.90.50.00 as unmounted optical prism for high-performance binoculars. Combines image erection with maximum light gathering capability.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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Import Tips

• Air gap dimension specifications critical for total internal reflection

• Specify roof surface dihedral angle precision for stereoscopic viewing

• Enhanced aluminum coatings required for high light transmission claims

Abbe-Koenig Prism from Japan — Import Duty Rate | HTS 9001.90.50.00