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Diamond-Like Carbon (DLC) Coated Silicon Windows
From fast modifications to stock optics to custom designs, we can help you take your optical system from design to prototype to volume production. Contact us to get started today.
ISP Optics Diamond-Like Carbon (DLC) Coated Silicon Windows provide anti-reflection coating on one surface and a specially designed DLC coating on the other surface, making these windows highly durable and ideal for harsh environments. The DLC Coated surface is designed to withstand temperature cycling from -80 to +160°F, salt spray for a continuous period of 72 hours, and 1,000 wiper oscillations in a sand and slurry mixture. Further, these windows meet the MIL-F-48616 and MIL-C-48497C requirements for severe abrasion. Silicon features a Knoop Hardness of 1150 and low density, making it tougher than germanium substrates and suitable for weight-sensitive applications, respectively. ISP Optics Diamond-Like Carbon (DLC) Coated Silicon Windows are engineered for 3 to 5µm, making them ideal for infrared defense applications such as thermal imaging.
| Coating Specifications | ||
| Specification | AR Coating | DLC Coating |
| Adhesion | per MIL-C-48497C | per MIL-C-48497C |
| Abrasion | Moderate, per MIL-C-48497C | Severe, per MIL-C-48497C |
| Humidity | 24 Hours per MIL-C-48497C | 24 Hours per MIL-C-48497C |
| Salt Solubility | - | ≥24 Hours Immersion per MIL-C-675C |
| Salt Spray | - | ≥72 Hours per MIL-C-675 |
| Temperature (°F) | -80 to +160 per MIL-C-48497C | -80 to +160 per MIL-C-48497C |
| Solubility and Cleaning | per MIL-C-48497 | per MIL-C-48497 |
| Wiper | - | ≥1,000 Wipes of Sand/Slurry per TS-1888 |
| Coating Temperature (°F) | -80 to +160 per MIL-C-48497C | -80 to +160 per MIL-C-48497C |
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