1. At 45° incidence angle:

• For 220 nm < λ < 305 nm, minimum reflectance reach ≥ 92%.
• For 305 nm < λ < 2500 nm, reflectance shall exceed 92%, with higher reflectivity preferred.

2. The coating provides excellent waterproof performance and immersion resistance.

3. Maximum operating temperature at 450°C.

4. Humidity resistance and durability must comply with Per-MIL-M-13508C.

5. The coating consists of a multilayer film composed of high-purity metals, semiconductors, and dielectric layers.