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Topic: RGB LED Matrix spread over 400 square feet (43 square meters) (Read 1 time) previous topic - next topic

GoForSmoke


No I am having a laugh, there is no such thing as a black LED. I wish there were because one project of mine is stalled because I want a black "light". I have tried using a smoked plastic filter but it is not very satisfactory.


Me too. Led as a detector does soak up photons, like I can see any difference!

But for the practical, an unpowered led on a relatively big black background, could I see the difference there? If the background is light color (grey to white) though, then   :smiley-red:

Maybe he should try flip-dots? Real big flip dots....
I find it harder to express logic in English than in Code.
Sometimes an example says more than many times as many words.

GoForSmoke


Glad to see the picky police are here to "help".


Yes, like the faculty of the Unseen University in Pratchett's Discworld novels.
Just ignore it unless you want to laugh.

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IR LEDs are kind of like black LEDs, and they do come in different shades ;-)

Tim


Oh, I didn't recognize you, Dean!
I find it harder to express logic in English than in Code.
Sometimes an example says more than many times as many words.

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