PetaPixel

How Optical Lenses Are Manufactured

 

Here’s an interesting “How It’s Made” segment showing how optical lenses are made. Here’s a hint at why lenses are so expensive: slabs of optical glass cost up to $1000 for 2.2lb!

(via Reddit)

 
 
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  • Michael Godek

    I was literally JUST wondering about this the other day thinking the discovery channel should do a “how it’s made” about it!

  • Mads Johansen

    it’s also here, a bit faster: 
    http://nerdvi.be/?p=607

  • GlossGreen

    I saw something similar the other day from the Canon site. Here’s their museum with the process of making a lens. 
    http://www.canon.com/camera-museum/tech/l_plant/main.html  Very cool videos.

  • http://twitter.com/SLotH13 SLotH

    This is really cool