Collimated light

Okay, so you know how sometimes when you shine a flashlight, the light spreads out and gets weaker the further away it goes? This is because light naturally likes to spread out like a fan.

But sometimes, we don't want the light to spread out. We want it to stay in a straight line without getting weaker. This is where collimated light comes in.

Collimated light is a very special kind of light that has been trained to stay in a straight line without spreading out. It's like when you color in the lines of a coloring book - the color stays in one place instead of going outside the lines.

We can make light collimated by using special tools called collimators. These tools help to make the light waves all go the same direction, like a big group of people all walking in a straight line.

We use collimated light for lots of different things - like in telescopes to see faraway stars, in laser pointers to make a really strong beam of light, and in x-ray machines to make really detailed pictures of our insides.

So basically, collimated light is like a superhero version of regular light - it stays in a straight line and saves the day for scientists and doctors!