Cell Phone Trick Enlarges Your Screen

What about  enlarge the size of your mobile phone screen to watch videos ?
here a simple yet amazing trick


1 - Obtain a Fresnel lens like one of these from eBay or other retailer.
2- Make a stand for the lens. This can be as simple as cutting slots in two blocks of rubber, foam or wood.
3- Stand the lens vertically and prop up your cell phone behind it.
4- Adjust the distance between the two until the magnification is to your liking.

Comments

[zacker]

I have a 50" Lens from an older big screen TV, I wonder how big I can blow up my iphones images? Hmmm... and yes, it starts a fire very quickly in bright sun!

[DIaneD21]

How do I get one out of an old tv I have?

[zacker]

It is pretty easy, you just need to take apart the tv piece by piece. the lens is just a big sheet of thin plastic, like plexiglass. Here is a link to a video on YouTube about it https://youtu.be/XFw7U7V1Hok

[DIaneD21]

Thank you!

[ceanes]

Thanks for your comment

[qwerty987]

i believe that some of the first bigscreen tv's used a similar approach but used 3 light projectors on the Fresnel lens. If you take one of these lenses out of a tv you can burn almost anything thekingofrandom has a video on it.

[ceanes]

Interesting information thanks for your comment