Fluorescent

Phosphor

It's not that long ago that our lighting was just done with these kinds of lamps.

Phosphor

And for that reason, we cover the LED with a phosphor cap.

Luminous poisoning? Go on, do what I tell you.

The GlowintheDark Flashlight!

Well, the GlowintheDark Flashlight, that was mine.

Harry's really slow to catch on.

Turn it on turn it off.

The moon fell brightly on the water.

But the pay off is really enormous.

The reason that Vibrio fischeri is doing that comes from the biology.

You must steel yourself for a shock, Mr. Bigelow. Well go on, Doctor, what is it you're trying to tell me?

It seems like there's some trouble at Fairy Tail. What's going on? Their members are fighting amongst each other.

The lights. What lights?

What's the trouble here?

Thermosalinographs, fluorometer, carbon analyzer...

And the cool thing about fluorescence is that it's not only bright, it actually can shine through tissue.

Now bright, now dimmed, was the moonlight pale,

We're trying to preserve nerves we can't see where they are.

Tell them to prepare a stomach wash for luminous poisoning.

They ushered me down a narrow set of stairs that led to this dirty, dimly fluorescent lit basement.

So the Z here is shown in pseudo color. Now we have some illumination, so we decide on some arrangement of light sources.

This bacterium has the special property that it makes light, so it makes bioluminescence,

I must replace that fluorescent lamp.

A firefly?

Hotaru?

Double illuminate

It's not up to me.

So this is how we normally would light our offices.

And this is what I think is the magic of fluorescence.

But one of the most popular ones involves green fluorescent protein.

We have something that's not going up.

This is how we create uniform lighting from one wall to the other in a regular grid of lamps.

Directional lighting

Use lighting

Flat lighting

Horton, illumination round.

Audrey, the flare gun!

Hotarubi!

Hotarubi!

Hotarubi...

Now not much time difference between the two means not much shadow is involved.

And this little piece was shown just for the spring session.