Glued Doublet Prism from Germany
Two prisms of different dispersion glasses cemented to form an achromatic prism with reduced chromatic aberration. Falls under HTS 9001.90.50.00 as unmounted compound optical prism for spectroscopy applications requiring color correction. Maintains dispersion while minimizing color fringing.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Specify both glass types, cement type, and achromatic performance data
• Cement bond strength testing required for handling specifications
• Differential expansion coefficient data needed for thermal stability claims