I have fiber optic internet at my house.

The diamond sheds beautiful light when it receives the sun's light.

In urban areas, light pollution obscures the starry sky.

My new computer can read optical discs.

Optical communication is a very efficient method for data transmission.

The moon is shining brightly.

A high-speed optical line is installed in my house.

He opened the Western-style door.

Mr. Tsuchibashi is my best friend.

We had a picnic on the mound.