Anamorphic Prism Pair from Japan
Matched pair of wedge prisms used to circularize elliptical laser beams by differential expansion in orthogonal directions. Falls under HTS 9001.90.50.00 when imported as unmounted individual prisms. Common in laser diode collimation and beam shaping applications.
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%
Import Tips
• Import as individual prisms, not matched sets, to maintain unmounted status
• Specify wedge angles and apex orientation for beam expansion ratio calculation
• AR coating specifications essential for high-power laser transmission