24 Feb
2010
24 Feb
'10
11:37 p.m.
-----Original Message-----
From: cctalk-bounces at classiccmp.org
[mailto:cctalk-
bounces at classiccmp.org] On Behalf Of Pete Turnbull
Sent: Wednesday, February 24, 2010 2:52 PM
To: On-Topic and Off-Topic Posts
Subject: Re: OT: white LEDs
[snip]
White LEDs are also popular with some microscopists,
and I have a
rather
Heath Robinson device I use in that way. I keep meaning to rebuild it
properly rather than using crocodile clip to hold parts in place, but
it
gives good controllable light. At least one of the microscopy sites
has
some reviews suggesting makes/types that have a good spectrum:
http://www.micrographia.com/index.htm
http://www.micrographia.com/articlz/artmicgr/lmpideal/lmpi0500.htm
--
My daughter wanted a microscope for Christmas (!) and 'Santa brought' what seems
to be a really nice unit available at Top Ten Toys. I mention it because it apparently
uses white LEDs for both above- and below-stage lighting (switch selectable) and the view
is great. It's WAY better than the microscope I had as a kid. -- Ian