D-634 PRECISION ADJUSTABLE 6 INCH REFERENCE MIRRORThe Model D-634 Precision Adjustable 6 inch Reference Mirror is a basic element of optical tooling. Positioning to an exact angle is provided by two fine adjustment screws. Model D-634s can be rigidly mounted to surfaces to be used as reflective bench marks.
Both the Model D-634 and the Model D-654 High-stability 6" Reference Mirror are used primarily to provide a reflecting surface for autocollimators which determine minute angular changes in gyro rate tables or turntables, during the construction of jigs and fixtures, or in tool alignment. |
Specifications:
| Flatness: | λ/8 | |
| Surface Quality: | 80/50 per MIL-O-13830 | |
| Material: | Mirror: | Pyrex Glass |
| Mount: | Aluminum | |
| Coating: | Aluminum with protective overcoat per MIL-M-13508 | |
| Mirror Dimensions: | Diameter: | 6 inch (152 mm) |
| Thickness: | 1 inch (25 mm) | |
| Overall Dimensions: | Diameter: | 6.75 inch (172 mm) |
| Thickness: | 1.375 inch (35 mm) | |
| Mounting Hole: | ¼-28NF Threaded Insert | |
| Mount Finish: | Ivory enamel | |
| Carrying Case: | Hardwood | |
| Weight: | 4 lbs (1.8 kg) | |
| Shipping Weight: | 12 lbs (5.4 kg) | |
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Support Documentation |
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D-634 Data Sheet |
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D-634 Drawing |
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