Google cardboard - specifically the lenses

[teneke]

First, I believe this is best suitable for this category, I hope I'm not too wrong.

Now on topic.

Three days ago, on their yearly event, among other things google introduced cardboard.
https://developers.google.com/cardboard/
http://www.google.co.uk/search?q=google+cardboard#q=google+cardboard&safe=off&tbm=vid

Basically It's a cardboard DIY thingy, where you put your smartphone and you get Virtual Reality. (Like VERY cheap Oculus Rift). I believe It's really cool and the possibilities are quite endless.
I really want one but they don't sell them, separate sites to sell them for 20$, but they will ship in month - moth and a half.

My question is where in UK (online) and in Manchester (in person) i can find the lenses that are used in the project.
http://www.amazon.com/dp/B00COO64IC
Lenses
This is the trickiest component. Lenses that have a 45mm focal distance might work. Biconvex lenses work best because they prevent distortion around the edges. We used the Durovis OpenDive Lens Kit available here (US) and here (EU).

Obviously the ones used by google can't be found so they give directions:
"Lenses that have a 45mm focal distance might work. Biconvex lenses work best because they prevent distortion around the edges."
And the original ones: "25mm acrylic lenses."

So yeah, any information would be much appreciated, thank you!

 

[gomako]

I was looking for these lenses and couldn't find any of the suggested ones from the google site. I dug about on the internet and followed these US links:

http://www.reddit.com/r/oculus/comments/29cua5/does_anyone_know_where_to_get_lenses_for_google/

http://www.ebay.com/itm/5x-pocket-l...ultDomain_0&hash=item588ccf9864#ht_1558wt_689

To end up here: http://www.ebay.co.uk/itm/5x-POCKET...ewelleryBoxes_Supplies_CA&hash=item2ecc341933

They aren't 45mm, but should work as suggested in the above reddit link.

They are from Maplins outlet ebay store, so you might be able to get them in person.

I haven't tried them but I think they could work. If you give it a couple more weeks, I reckon someone will fill the niche for supplying these lenses and pop up on ebay somewhere!

If you do try it, it would be interesting to hear your results.

 

[Flyboytim]

Why not experiment with a pair (or 2) of +3 reading spectacles from Poundland, see what your focal length required is, and modify the cardboard template accordingly?