Square Aspheric Lens
Through sustained research, Tengjing Technology developed leading domestic precision molded-glass asphere technology, covering tungsten-carbon alloy molds, aspheric arrays, and aspheric caps, with independent mold design and fabrication, molding, precision testing, and final coating. Mold-machining accuracy reaches 2nm; tungsten-steel mold surface figure reaches RMS 10nm, and molded products RMS 20nm. The platform advances toward ultraprecision molding of individual or array aspheres, freeform lenses, and prisms. Unlike constant-curvature spherical lenses, square molded aspheres vary radius continuously from center to edge along the optical axis, correcting spherical and chromatic aberration more efficiently. Conic and aspheric coefficients optimize spot quality, and integral molding with metal mounts supports hermeticity for barcode scanning, laser collimation, and optical imaging.
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