Amici Roof Prism from Mexico
A compound prism combining right-angle reflection with roof prism functionality for erecting images in compact optical instruments. Classified under HTS 9001.90.50.00 as an unmounted optical prism featuring both total internal reflection and roof reflection surfaces. Used in compact binoculars and prism binoculars.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Provide detailed ray trace diagrams showing internal light path through compound surfaces
• Document roof surface flatness critical for maintaining image quality
• Specify glass types used in cemented interface if multi-material construction