Re: Optics design reference

From: Alessandro Del Bianco (nope_at_nope)
Date: 06/16/04 

Date: Wed, 16 Jun 2004 12:01:34 +0200

Ted Phares wrote:
> Hi,
>
> Can anyone suggest a reference that touches on basic optical system
> design techniques?

Warren J. Smith, Modern Optical Engineering McGraw-Hill
Donald O'Shea, Elements of modern Optical Design, Wiley Interscience

> I'm working on a design project that requires relatively compact
> optics capable taking as input a 3" diameter beam (consisting of
> approximately parallel rays) and concentrating it down to a 1"
> diameter beam (again, consisting of approximately parallel rays). The
> application is a light concentrator for a very high intensity portable
> light source.

A telescope with a 3X magnification ratio will do the job. You can build
  with catalog lenses without difficulties.

You can also look for beam expanders and use them reversed. Care that
the divergence of the beam will increase when you concentrate the beam.

> I'm wondering if this is a common problem for which a usual design
> approach is taken. 

-- 
Ciao,
Alessandro
Life's but a walking shadow, a poor player
That struts and frets his hour upon the stage
And then is heard no more: it is a tale
Told by an idiot, full of sound and fury,
Signifying nothing.