Unmounted 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, molded-glass aspheres vary their radius continuously from center to edge along the optical axis, correcting spherical and chromatic aberration more efficiently and improving spot quality. Adjusting conic and aspheric coefficients further optimizes performance and minimizes aberrations, for laser collimation, optical imaging, and other common applications.
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