MAKE A MEME
View Large Image
| View Original: | Enhanced aluminum coated first surface mirror on an optical flat.JPG (1656x1164) | |||
| Download: | Original | Medium | Small | Thumb |
| Courtesy of: | commons.wikimedia.org | More Like This | ||
| Keywords: Enhanced aluminum coated first surface mirror on an optical flat.JPG en An optical flat that has been coated with aluminum by vacuum deposition to make a first-surface mirror The coating is enhanced with dielectric coatings both improving the reflectance and protecting the soft aluminum from damage Both sides of the optical flat were certified to be polished to <math>\lambda</math>/20 That's 1/20 of the wavelength of the helium-neon laser used in the interferometer which equates to a surface deviation of no more than 31 6 nanometers The substrate is quartz measuring 1 inch in diameter by 1/2 inch thick 2012-06-20 own Zaereth cc-zero Uploaded with UploadWizard Optics Mirrors | ||||
