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.
Sintered ZnS Far-infrared Lenses
FIR (10μm) lenses made with zinc sulfide
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Low cost at mass production by mold forming process (without machining)
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Practical transparency at 8-12μm by optical design with aspherical and diffractive technology
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All of the models are with athermal function
Standard Lens Modules
| FL | F# | Image Circle | Coating | Transmission | HFOV | |
| Lens Module #608 | 35.0 | 1.1 | 13.6 | AR | 0.74 | 17.7° (17μmQVGA) |
| 13.0° (25μmQVGA) | ||||||
| Lens Module #550 | 18.8 | 1.0 | 13.6 | AR | 0.79 | 32.9° (17μmQVGA) |
| 24.3° (25μmQVGA) | ||||||
| Lens Module #612 | 13.0 | 1.1 | 13.6 | AR | 0.78 | 50.3° (15μmQVGA) |
| 36.2° (25μmQVGA) |
Feature of Sintered ZnS Infrared Lenses
