After reading up on Alexander Wiki page, I came across Photosphones. I was curious to see exactly how it works and I'm in complete amazement. Sounds via light. That's incredibly.
1:33 "Oop, squeak toy!" Hahaha! Nice project Dino! I read about that same problem Forrest Mims wrote about in the Jameco emails I get. I wasn't familiar with a photophone at the time and did figure it out ;-)
i have a few sets if IR sender / revievers , i have been thinking , what could i do with these . hoping maybe you will eventually utilize those ! thanks for your work , i look forward to HAW ! i built my 4th slide synth board , hoping this one works , the first rush job was fine , 2 and 3 were intermittent ! i am trying to a lil nicer "chassis , but keep it small . it looks nice and its LOUD , but after a minute , she rises in pitch and stalls ! cant figure it out , STILL ! heh .
Sounds very nice. Did you use any frequency correction at the sending end? Like the media player software's equalizer as a preemphasis? Or is the mass of the mirror to big to resonate at higher frequencies? What did you use the bass pedal for?
it's just a solar panel inside of the black tube? can be any solar panel? solar calc for example? and the green stuff has a name? to search in my local electronics store. thanks and regards!
At 1:20 he mentions the cap is in parallel which I believe he misspoke. I'm certain it's in series as a coupling cap. (This eliminates the DC generated by the solar cell.)
This is quite neat. I have a question: what would happen if you were able to concentrate the light so thst more woukd hit the reciever? Since more light would be picked up and converted, would tjat improve the sound quality or just make more of the audio being reproduced heard through the reciever?
Well Bell stole the phone invention and the prototype from an italian inventor while working at a telegraph agency the working identicle prototype had to be returned to the Italians estate exactly like Tesla's stuff from Marconi who just copied Tesla's patents.
I haven't built one myself but am fascinated by the concept. My first guess is that you have to make sure the mirror is flexible enough and will be able to vibrate. Maybe try to put it on an elastic membrane and keep the way from your voice to the membrane "airtight" by using some sort of tube or horn to optimise the incoming sound pressure
So its not actually converting sound to light, its using sound to modulate the frequency of light reflecting off the mirror?, And then the light reaching the other end hits a surface sensitive enough to vibrate from just light waves? Cmon!!
No it doesn't vibrate the solar panel, it varies the voltage from the solar panel because the light that hit's it is is constantly changing with the sound that's moving the mirror.
Wow!! TheThievingBeggars 45 minutes ago Way cool Dino!! doggiedoc94 1 hour ago very nice! always great to see what you have for us. and i love the doors, so that made it better. helpwantedfilms 1 hour ago Very cool! You deserve a lot more views. TechShmoo 1 hour ago
