LED Light Diffusion for Backlights

This forum is for general discussion about PhotoVCarve.
Post Reply
johnelle
Posts: 40
Joined: Thu May 25, 2017 7:23 pm
Model of CNC Machine: Shapeoko 3
Location: Groton MA, USA

LED Light Diffusion for Backlights

Post by johnelle »

Capture.JPG
I noticed these cheap Chinese LED array mini-panels recently and am experimenting with them as backlights for Lithophanes milled from Candlestone (similar to Corian). You can't apply to directly to the back of the panel because you get a concentrated square of light on the front viewing side.

You have to have a fairly significant air gap to make them work as a backlight. Wondering it there is some magic material (transparent plastic sheet of prisms(?) that you could use to diffuse the light so that the enclosure would be relatively thin?

User avatar
dwilli9013
Vectric Wizard
Posts: 1232
Joined: Mon Sep 30, 2013 12:45 am
Model of CNC Machine: 3 axis Self Designed Self Built
Location: Machesney Park Illinois

Re: LED Light Diffusion for Backlights

Post by dwilli9013 »

Google up Stage Light Gels. They come in various colors and help to soften the light. They work very well and are fairly inexpensive. :lol: :lol:
D-Dub
Dwayne
Dwilli

Post Reply