Re: Light - Beyond Just Reflected Light
- From: John <John@xxxxxxxxxxxxxxxxxxxxxxx>
- Date: Sun, 25 Jan 2009 22:47:11 +0000
In message <bb85ca06-7c15-4e13-a96c-6cf55ba24d68@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>, LEGEND65@xxxxxxxxx writes
The only thing about LEDs though is they have a very focused
directional light. I don't know if you could get away with a single
light pointing down and expect it to get an even lighting of the
piece.
You can change the focus by changing the shape of the lens, only problem is , the internal reflector is focused on the lens for maximum performance, though any change will normally widen the light pattern, the intensity will drop the wider the pattern. A trick that can be tried is to place one of these fancy glass beads in front of the lens, to diffuse the light or if there is excess light it can be diffused with petroleum jelly or grease proof paper (think professional photographer)
Another trick depending on what is being illuminated, say a banxia but would be yo use a light guide, or the poor mans version an old Bic Biro Clear plastic tube. The LED fits nice in the end, but DON'T glue it, any glue on the lens will distort the pattern
--
John
.
- References:
- Light - Beyond Just Reflected Light
- From: charlieb
- Light - Beyond Just Reflected Light
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