Thursday, December 12, 2013


You can debate the origins of optical coatings but I like to think the first optical thin films were applied to the sarcophagi of pharaohs thousands of years ago. They weren't placed in a vacuum chamber and the gold wasn't evaporated and deposited but skilled artisans beat the very malleable material into very thin films and applied the films to sarcophagi partly for optical effect.

A good timeline about the history of vacuum and vacuum deposited coatings can be found on the Society of Vacuum Coaters website. Be sure to click the links at the left, there's some good information there. There are also some very interesting PDFs and one entitled Foundations of Vacuum Coating Technology you can download and read. Check it out!

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