Spectacle lenses of glass
Optical fibers and optical fiber bundles; optical fiber cables other than those of heading 8544; sheets and plates of polarizing material; lenses (including contact lenses), prisms, mirrors and other optical elements, of any material, unmounted, other than such elements of glass not optically worked: > Spectacle lenses of glass
Duty Rate (from China)
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
Except as provided in headings 9903.88.39, 9903.88.42, 9903.88.44, 9903.88.47, 9903.88.49, 9903.88.51, 9903.88.53, 9903.88.55, 9903.88.57, 9903.88.65, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(r) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(s)
Products classified under HTS 9001.40.00.00
Uncoated Glass Spectacle Lenses
These are basic plano-convex or concave glass lenses made from optical crown glass, unmounted and designed specifically for use in prescription eyeglasses to correct refractive errors like myopia or hyperopia. They fall under HTS 9001.40.00.00 as spectacle lenses of glass that are optically worked but not mounted in frames. The lenses are produced through grinding and polishing processes to achieve precise curvature and surface quality for vision correction.
Anti-Reflective Coated Glass Lenses
High-index glass spectacle lenses featuring a multi-layer anti-reflective coating to minimize glare and improve light transmission for better night vision and aesthetics. These unmounted lenses are optically worked from borosilicate glass and intended exclusively for eyeglass frames. HTS 9001.40.00.00 covers all glass spectacle lenses regardless of optical coatings, distinguishing them from unworked glass.
Photochromic Transition Glass Spectacle Lenses
Glass spectacle lenses that darken automatically when exposed to UV light, made from specially formulated photochromic glass like Corning Photogray, unmounted and ground to prescription specifications. They qualify under HTS 9001.40.00.00 as their primary function remains vision correction despite light-adaptive properties. These lenses offer convenience for indoor/outdoor use without separate sunglasses.
High-Index 1.8 Glass Lenses for Eyeglasses
Thin, lightweight high-index (1.8 refractive index) glass spectacle lenses designed for strong prescriptions, minimizing lens thickness while maintaining aberration-free vision. Made from dense flint glass and precisely polished, these unmounted lenses fit standard eyeglass frames. HTS 9001.40.00.00 applies to all optically worked glass spectacle lenses regardless of index or thinness.
Bifocal Glass Spectacle Lenses
Classic Kryptoc or flat-top bifocal glass lenses with distinct distance and near vision segments fused or molded into single unmounted lenses for presbyopia correction. Made from crown glass with precise segment lines, they require skilled optician edging. HTS 9001.40.00.00 includes multifocal spectacle lenses of glass as standard vision correction products.
Progressive Addition Glass Lenses
Varilux-style no-line progressive glass lenses providing seamless vision correction from distance through intermediate to near, with continuous power gradient ground into high-quality optical glass. These premium unmounted lenses minimize distortion through advanced freeform surfacing. Classified under HTS 9001.40.00.00 for all glass spectacle lenses including complex multifocals.
Trivex Glass Hybrid Spectacle Lenses
Impact-resistant glass lenses blending Trivex polymer core with glass outer layers for superior optical clarity and safety, designed for children's or sports eyeglasses. Optically worked to prescription with ANSI Z87.1 impact ratings. HTS 9001.40.00.00 applies if predominantly glass construction for spectacle use.
Polarization Glass Spectacle Lenses
Glass spectacle lenses embedded with polarizing film between crown glass wafers to reduce glare for fishing, driving, or golf applications while maintaining prescription correction. Unmounted and precisely surfaced for frame mounting. Falls under HTS 9001.40.00.00 as corrective spectacle lenses of glass, not polarizing sheets.
Scratch-Resistant Glass Spectacle Lenses
Standard crown glass spectacle lenses treated with hard carbon or diamond-like coatings for enhanced scratch resistance in daily wear prescription eyeglasses. These unmounted lenses maintain optical clarity while extending lens life. HTS 9001.40.00.00 encompasses all surface-treated glass spectacle lenses.
Crown Glass Single Vision Lenses
Traditional low-dispersion optical crown glass lenses (index 1.52) for everyday single vision correction, available in spherical powers from plano to ±20 diopters. Precision ground and polished for minimal chromatic aberration. Standard classification under HTS 9001.40.00.00 for unmounted glass spectacle lenses.
Flint Glass Myopia Control Lenses
Dense flint glass spectacle lenses (index 1.6+) with peripheral defocus zones designed to slow myopia progression in children through simultaneous focus technology. Optically worked with concentric treatment rings invisible to central vision. HTS 9001.40.00.00 as specialized glass corrective lenses.
Safety Glass Spectacle Lenses ANSI Z87+
Heat-tempered or chemically strengthened glass spectacle lenses meeting ANSI Z87.1+ high impact standards for industrial prescription safety eyewear. Unmounted with 2.5mm minimum thickness and drop ball pass certification. Still classifies under HTS 9001.40.00.00 when intended for vision correction despite safety features.
Aviator-Style Tinted Glass Lenses
Gradient-tinted glass spectacle lenses (gray/green 23-43% transmission) shaped for teardrop aviator frames, combining prescription correction with light reduction for pilots. Optically worked from neutral-density tinted glass blanks. HTS 9001.40.00.00 for all glass spectacle lenses including fashion/safety tints.
Reading Glass Magnifier Lenses
Glass spectacle lenses with +1.00 to +3.50 spherical power for presbyopia reading correction, featuring aspheric design to expand field of view. Unmounted plano-convex or meniscus form from high-clarity crown glass. Standard HTS 9001.40.00.00 classification for all corrective glass spectacle lenses.
Prism Glass Spectacle Lenses
Glass lenses incorporating prism diopters to correct eye alignment disorders such as strabismus or diplopia, featuring base-in/out prism ground into the prescription surface. These unmounted, optically worked lenses are essential for binocular vision therapy. They remain under HTS 9001.40.00.00 as their primary role is spectacle-based vision correction.