The laser is used to read the data on the disc
lasers read the bumps on the DVD and it transforms the bumps into sound + images. done.
Anything that uses a disc of some sort; stereos, DVD players and computers all use lasers.
Alarm system
Optical lasers, also known as laser optics, are beams of light that come in many different strengths and possible uses. Modern computer mice use lasers to detect movement. Video game systems and DVD players use lasers to access discs. More powerful lasers are used for surgery and in laboratories as tools for experiments.
this mineral is used for jewelry and also is used for the blue lasers in blue ray DVD players
Lasers have many uses, laser pointers, cd/dvd/blu-ray players and writers, Optical tweezers, Laser cooling, Communications, just to name a few.
I think it does only when the disc carriage is open since DVDs are read by certain lasers.
Optical data vdrives in computers and home entertainment, such as DVD and CD players / recorders. Lasers are used to make light shows. Lasers are also used in precision cutting machines.
DVD player, CD player and a computer
CD and DVD drives don't use needles, they use lasers
Portable DVD players with lap mounts are a great option for kids to use in a car.
Blu-Ray players use lasers to read and collect the data from the disc.