Lens quality control

Started Sep 24, 2013 | Discussions thread
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OpticsEngineer Senior Member • Posts: 4,628
Re: Lens quality control

"The challange for Sony is cost: how to make a good enough and small enough lens in China for as little money as possible. This is not the pure engineering problem you are making it out to be."

Of course you are correct. It is all about cost. Tighter tolerances cost money. I see my post did not bring out that important point.

In thinking about why that did not come across, I realize that in the context of working for a large company, if something does not meet the cost constraints, it simply gets lumped into "not manufacturable."

In contrast, one particular metrology lens I have personnel knowledge of is actually made in low quantities (a few a year) assembled at night by the designer who has a Phd optics.   The assembly is done at night so vibrations from traffic don't wash out the fringes on the interferometer used to align each element.  It can be made, but in my company it would be considered "non-manufacturable."

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