Can you name this emiter/lens/etc?

[HOLONYAK]

Hi. I am trying to find a specific beam pattern.
For reference, my TK11 produces 60 degrees of corona (is this term interchangable with spill?) This 60 degrees is the difference between light and darkness. It has a small hotspot in the center.

I am looking for an LED light with 15 to 20 degrees of corona. It would be nice if there was no discernible hotspot within that field...just a tight, bright, circle...like a spotlight at the opera.

Its OK if its a drop-in or a 6P-sized flashlight. The more power, the better. Its gotta be pretty bright.
Thanks in advance!

 

[joe1512]

You aren't going to find it conventionally.

However, you can use a flood-to-throw light to produce a pretty tight beam.

As an EXAMPLE ONLY with beam-shots, movies, and stuff, see the following:
http://www.dealextreme.com/details.dx/sku.18697



This is the cheap way to do it.

The expensive way is called an 'aspheric lens' which removes the corona and focuses the light in a very tight beam.