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Sintered ZnS lenses and Polycrystalline tranparent spinel

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Sintered ZnS lenses

Sintered ZnS lenses

The sintered ZnS lenses for far-infrared rays (10 μm band) are made from ZnS (zinc sulfide) powder, and suitable for mass production by molding process. These lenses can be manufactured with high productivity without using rare metals, achieving excellent supply stability. The original optical design technologies using diffractive optics achieve a practical optical performance compared with germanium lenses. The sintered ZnS lenses ensure stable optical performance at both high and low temperatures, with low temperature dispersion of refractive index.


Polycrystalline transparent spinel

Polycrystalline transparent spinel

The transparent ceramic materials made from polycrystalline spinel have excellent transmission characteristics from visible light to near-infrared rays (1 μm band) and medium-infrared rays (3–5 μm band). The machinability is better than that of single crystal sapphire. These spinels are suitable for applications in electronic devices for their low thermal expansion coefficient, high heat conductivity, and superb heat dissipation performance.

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