D-654 HIGH-STABILITY 6 INCH REFERENCE MIRRORThe Model D-654 High-stability reference mirrors is a basic element of optical tooling. Model D-654s can be rigidly mounted in any orientation to surfaces and used as reflective benchmarks.
Features:
These mirrors are used primarily to provide a reflecting surface for autocollimators that determine minute angular changes in gyro rate tables or turntables, during the construction of jigs and fixtures, or in tool alignment. |
Specifications:
| Flatness: | λ/20 | |
| Surface Quality: | 80/50 per MIL-O-13830 | |
| Material: | Mirror: | Fused Silica |
| Mount: | Steel | |
| Coating: | Aluminum with protective overcoat per MIL-M-13508 | |
| Mirror Dimensions: | Diameter: | 6 inch (152.4 mm) |
| Thickness: | 1.25 inch (31.8 mm) | |
| Overall Dimensions: | Diameter: | 7.5 inch (190.5 mm) |
| Thickness: | 2 inch (50.8 mm) | |
| Mounting Holes: | (3) ¼" Diameter thru holes | |
| Mount Finish: | Ivory enamel | |
| Carrying Case: | Hardwood | |
| Weight: | 7 lbs (3.2 kg) | |
| Shipping Weight: | 20 lbs (9.1 kg) | |