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Light Shades
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11-13-2013, 07:30 PM
(11-13-2013, 12:20 PM)awemawson Wrote: You could of course just mount a pointed bar vertical in the bench vice, and balance the bowl on it itteratively moving it to get it right .I like Andrews Idea. and once it's balanced whack it with a wooden mallet or the like and there's the centre punch mark. 
Busy Bee 12-36 lathe, Busy Bee Mill drill, Busy Bee 4x6 bandsaw, Homemade 9x17 bandsaw, Ad infinitum.
11-13-2013, 08:04 PM
Tom, how does a mirror reflect, not being white?
Busy Bee 12-36 lathe, Busy Bee Mill drill, Busy Bee 4x6 bandsaw, Homemade 9x17 bandsaw, Ad infinitum.
11-13-2013, 08:22 PM
I'm guessing they're reflecting the light, you can feel the heat below the bulb, after a few minutes the shade is warm but not hot, must be reflecting rather than absorbing the energy.
A little surprised at the light output though, it appears yellow rather than bright white.
Free advice is worth exactly what you payed for it.
Greg
11-13-2013, 09:09 PM
Steve,
Most reflectors you see are white, probably to diffuse the light. A mirrored surface can reflect an image, such as the element in the bulb. Greg, Maybe a frosted bulb would help with the color. Tom ![[Image: TomsTechLogo-Profile.png]](http://tomstechniques.com/wp-content/uploads/2013/11/TomsTechLogo-Profile.png)
11-13-2013, 09:32 PM
(11-13-2013, 09:09 PM)TomG Wrote: Steve, Sure now you tell me after I bought 8 clear ones.
Free advice is worth exactly what you payed for it.
Greg
11-14-2013, 05:23 AM
I suspect that most reflectors are white as it is cheaper to spray them white than chrome plate them. The reflectors in car head lamps are all silvered or some modern metallised equivalent.
Andrew Mawson, proud to be a member of MetalworkingFun Forum since Oct 2013.
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