•−•  ••−•    −•−•  •−  ••−•  •
RF Cafe Morse Code >Hear It<

Job Board

About RF Cafe™

Sitemap

Blu-ray Laser Bursts 100 Black Balloons

400-500 nm Light Spectrum (Wikipedia image) - RF Cafe

Got an old Blu-ray player from which you can cannibalize the laser unit? Scott Stevenson did, and use used it produce this video. Blu-ray players use a 405 nm (more violet than blue - see thumbnail) laser diode that emits a 580 nm beam at around 5 mW. I'm guessing black balloons are used because they absorb more of the light energy and therefore heat faster. A debate on the YouTube page argues between melting or air heating causing the balloon to burst. My money is on local melting since it would take a long time to heat the air inside enough to expand enough to cause the popping.





Posted  May 2013
 
Custom Search
More than 10,000 searchable pages indexed.

Your RF Cafe
Progenitor & Webmaster

Click here to read about RF CafeKirt Blattenberger... single-handedly redefining what an engineering website should be.

View the YouTube RF Cafe Intro Video Carpe Diem!
(Seize the Day!)

5th MOB: My USAF radar shop

Airplanes and Rockets: My personal hobby website

Equine Kingdom: My daughter Sally's horse riding website