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Color-Shifting Crystal Lamp

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Project by toasterburn posted 925 days ago 1133 views 2 times favorited 14 comments Add to Favorites Watch





14 comments so far

View a1Jim's profile

a1Jim

112001 posts in 2180 days


#1 posted 925 days ago

That’s a very cool crystal .

-- http://artisticwoodstudio.com Custom furniture

View DIYaholic's profile

DIYaholic

12959 posts in 1278 days


#2 posted 925 days ago

Almost looks like something from the set of Star Trek. In other words…....It’s outa this world!

-- Randy-- I may not be good...but I am slow! If good things come to those who wait.... Why is procratination a bad thing?

View dspahn's profile

dspahn

84 posts in 984 days


#3 posted 925 days ago

DIYaholic: I thought the exact same thing…. Reminds me of this:

View Ken90712's profile

Ken90712

14830 posts in 1792 days


#4 posted 925 days ago

Very cool project , I like it!

-- Ken, "Everyday above ground is a good day!"

View drbyte's profile

drbyte

557 posts in 2665 days


#5 posted 925 days ago

If you’re going to post something that cool, you at least have to give us a glimpse of the control circuit or the schematic!!! Please!

-- Dennis, WV

View toasterburn's profile

toasterburn

16 posts in 926 days


#6 posted 925 days ago

Sure thing. I posted a schematic of the circuit and a list of the parts.

Thanks for all of the positive comments.

View drbyte's profile

drbyte

557 posts in 2665 days


#7 posted 924 days ago

Thanks for the circuit and parts. But I don’t see anything to make them flicker/flash in the circuit. Is that built into the LEDs? Where did you get your LEDs? Do you have a web site/link?

-- Dennis, WV

View toasterburn's profile

toasterburn

16 posts in 926 days


#8 posted 924 days ago

Yes, RGB (red blue green) leds have a tiny built in chip that causes them to shift between colors. The 5mm are generally rated for about 3v max, hence the resistors. You can buy slow fade that shift slowly, the ones I used shift quickly. I bought mine on ebay. Helps if you use a little sand paper on the leds to scratch them up; diffuses the light more across the crystal. By the way, the piece of crystal is a slice of Agate that a jeweler friend gave me.

View iltws2's profile

iltws2

25 posts in 928 days


#9 posted 924 days ago

Brings me back to the 70’s. Stobes and Blacklights

-- Medicaid Carpenter

View smndrummer's profile

smndrummer

47 posts in 948 days


#10 posted 924 days ago

That’s awesome! I feel like I’m watching Avatar on acid. “I think the trees are talking!” “What are they saying?” “I don’t know, but it’s gotta be important! Trees don’t just say anything!” – Rich

-- - Rich

View drbyte's profile

drbyte

557 posts in 2665 days


#11 posted 924 days ago

Great!!

-- Dennis, WV

View Sorethumbs's profile

Sorethumbs

38 posts in 1251 days


#12 posted 923 days ago

That is really neat. Truely intriguing. Two questions, if you don’t mind:
What keeps the three LEDs in the same phase of color at the same time?
Why not use a 3V button battery and skip the resistors?

View toasterburn's profile

toasterburn

16 posts in 926 days


#13 posted 923 days ago

They’re not in phase, each shifts color randomly. And each led needs 3v to operate correctly, so with 3 leds a 9v battery is perfect. The resistors just make sure each led isn’t hit with the full 9 volts, which would burn them out.

View Dark_Lightning's profile

Dark_Lightning

1672 posts in 1712 days


#14 posted 214 days ago

Wow, cool! From ~2 years ago, yet.

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