Fangcun Instruments
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| Brand | Fangcun Instruments |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (China) |
| Model | LT-APO |
| Price | Upon Request |
| Clear Aperture (CA) | 4.7 mm |
| Focal Length (FL) | 2.8 mm |
| Numerical Aperture (NA) | 0.82 |
| Working Distance (WD) | 0.95 mm (1.45 mm with spacer) |
| AR Coating | >80% transmission, 400–1000 nm |
| Achromatic Correction Range (Df < ±1 D) | 540–780 nm |
| Environmental Rating | Compatible with cryogenic temperatures (≤4 K), high magnetic fields (≥16 T), and ultra-high vacuum (UHV, ≤1×10⁻⁹ mbar) |
| Physical Dimensions | Diameter 24 mm, Length 49 mm, Mass 46 g |
| Mounting Thread | RMS (0.80″ × 36 TPI, 3 mm thread depth) |