Your personal information you provide will be transfered and stored as encrypted data.
You have the ability to update and remove your personal information.
You consent to our cookies if you continue to use this website.
Allow cookies for
Necessary Cookies Necessary Cookies cannot be unchecked, because they are necessary for our website to function properly. They store your language, currency, shopping cart and login credentials.
Analytics Cookies We use google.com analytics and bing.com to monitor site usage and page statistics to help us improve our website. You may turn this on or off using the tick boxes above.
Marketing Cookies Marketing Cookies do track personal data. Google and Bing monitor your page views and purchases for use in advertising and re-marketing on other websites. You may turn this on or off using the tick boxes above.
Social Cookies These 3rd Party Cookies do track personal data. This allows Facebook, Twitter and Pinterest integration. eg. shows the Facebook 'LIKE' button. They will however be able to view what you do on our website. You may turn this on or off using the tick boxes above.
If you're talking about LEDs that look black until you turn them on, you could try painting some normal LEDs with some thin black acrylic paint.. ?
Cake or Death?
DJ AmanSILVER Member newbie 34 posts Location: Lodi Heights, Michigan, USA
Posted: Although those UV LEDs give me some ideas I actually mean LEDs that shine Black. I got a few ideas to use them for. I can't find any online so I think I need to build my own LEDs. But I don't know how to make LEDs. So how do you make that shade in an LED... or is that not a wise thing to do, making your own LEDs that is. I'm just curious about LED poi in the daytime. I'm also curious of making a LED poi with such a dark shade of black that you can see it in the night.
*HyperLightBRONZE Member old hand 1,174 posts Location: Great Malvern [UK]
Posted: You can't make LEDs that 'shine' black.. that's not physically possible! Black is the absence of light so there's no way it could work - your LEDs would have to be sucking all the light out of whatever medium was in front of it!
Making your LEDs from scratch would be very difficult indeed (even ones that are not in the realms of fiction).
I'll ask my question a second time: Do you just want an LED that looks black but shines light out when you turn it on? If so, you could just paint it lightly with some black paint. It won't be as bright as it would be without the paint though.
Sorry to poo poo your idea, but it's not physically possible
Cake or Death?
Invader XanSILVER Member Your friendly neighbourhood mad scientist 479 posts Location: Over the hills and far away, United Kingdom
Posted: Quantum singularity LEDs! You'd have to make them out of dark matter or something...
"Love the art in yourself and not yourself in the art." --Konstantin Stanislavisky