how does a hemispherical lens focus parallel light rays

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how does a hemispherical lens focus parallel light rays

Postby yesiamsumit » Mon Oct 15, 2012 2:34 am

I am trying to do a solar energy project.
does a hemispherical lens focus parallel light rays from any direction on the centre of its plane surface?
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Re: how does a hemispherical lens focus parallel light rays

Postby wendellwiggins » Wed Oct 17, 2012 9:12 am

Hello yesiamsumit,

"does a hemispherical lens focus parallel light rays from any direction on the centre of its plane surface?"

No.

A web search for "hemispherical lens" will give you much more information. Most first-level physics books also discuss geometrical optics.

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