how do you turn your phone into a blacklight

How to Turn your Android Device into a Portable Blacklight:

1. To get started, cut a small piece of tape;
2. Then, fold it over, leaving a flap so that the tape may easily be removed from your device;
3. Place a small piece of tape over the LED flash on the back of your Android smartphone or tablet;
4. Color on top of the tape with blue marker so that it covers the flash;

Full Answer

How to make a light on a phone?

How to color tape over a light?

Why do highlighters fluoresce under blacklight?

Why do you use blue and purple in highlighter?

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Turn any flashlight into a black light with just three regular ... - reddit

OP is right! As a chemist I can say that it doesn't technically produce anything new, the lamp generates a range of wavelenghts that goes from IR to UV, the colors work as a filter that lets just UV light and some visible light pass.

Easiest Diy Black Light Out of Any Flashlight! - Instructables

Easiest Diy Black Light Out of Any Flashlight!: Doesn't that intro image look cool? Believe it or not, it was drawn using plain yellow highlighter! You can do exactly the same thing with any torch, all you have to do is follow the steps! The first photo is using the black light ad the second phot…

How to make a light on a phone?

Directions: STEP 1: Rip off a small piece of tape (fold some of it over to make a tab for easy clean up later) and place the piece of tape over the camera light on the phone. Make sure you place the tape over the LIGHT, not the camera! STEP 2: With the blue marker, color the portion of tape over the light.

How to color tape over a light?

With the blue marker, color the portion of tape over the light. You don’t need to color in the entire piece of tape; you just want to make sure the area directly over the light is colored.

Why do highlighters fluoresce under blacklight?

Highlighters fluoresce under a normal blacklight because the ink absorbs ultraviolet light, which isn’t visible to the human eye, and remits it as visible light .

Why do you use blue and purple in highlighter?

With the rest of the visible light spectrum blocked out, the resulting blue and purple light were enough to make the highlighter fluoresce because the wavelengths of purple and blue light are close enough to the UV spectrum , even though there is minimal UV light actually present.

Step 2: Go Blue

Color the first layer of tape -- just the part covering the flash --with blue Sharpie ink.

Step 3: Create a Purple Haze

Apply a second layer of tape. Use the purple Sharpie to draw over the blue-inked area.

Step 4: Shine the Light!

Turn out the lights (if it's nighttime) or find a windowless room and shut the door. Turn on the phone's flashlight and enjoy the eerie, bluish-purple glow.

How to make a light on a phone?

Directions: STEP 1: Rip off a small piece of tape (fold some of it over to make a tab for easy clean up later) and place the piece of tape over the camera light on the phone. Make sure you place the tape over the LIGHT, not the camera! STEP 2: With the blue marker, color the portion of tape over the light.

How to color tape over a light?

With the blue marker, color the portion of tape over the light. You don’t need to color in the entire piece of tape; you just want to make sure the area directly over the light is colored.

Why do highlighters fluoresce under blacklight?

Highlighters fluoresce under a normal blacklight because the ink absorbs ultraviolet light, which isn’t visible to the human eye, and remits it as visible light .

Why do you use blue and purple in highlighter?

With the rest of the visible light spectrum blocked out, the resulting blue and purple light were enough to make the highlighter fluoresce because the wavelengths of purple and blue light are close enough to the UV spectrum , even though there is minimal UV light actually present.