File:Optical flats showing perfect flatness as wringing progresses @ 589nm.jpg
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English: Four photos showing an optical flat test as wringing progresses, using 589 nanometer laser light. The surfaces are perfectly flat relative to each other, to a flatness of λ/10, which equates to a normal deviation of 58.9 nanometers. The fringes begin as thin, parallel lines which widen as the air is slowly expelled from between the surfaces, until only a single fringe remains. At λ/10 the surfaces are not quite flat enough to wring very tightly. |
| Date | |
| Source | Own work |
| Author | Zaereth |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 19:07, 20 January 2017 | | 1,585 × 1,353 (504 KB) | Zaereth (talk | contribs) | User created page with UploadWizard |
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