9018.90.20.00/Duochrome Test Slide Projector Optics/Japan

Duochrome Test Slide Projector Optics from Japan

Red-green bichromatic optics balancing spherical refractive errors. HTS 9018.90.20.00 includes optical test projectors for sight-testing. Endpoint determination in subjective refraction.

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

• Specify dominant wavelength values (red 625nm, green 535nm typical)

• Include projection lens focal length and screen illumination specs

• Classify as complete optical system vs. individual color filters