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Where to find biconcave lens? Answered

I want to make the google cardboard VR, but I cannot find biconcave lens. Is there any household thing that contains biconcave lenses with about 45 mm focal lengh and can the spectacle lenses be used for this project? Also buying online is not an option for me.

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seandogue
seandogue

3 years ago

There's always mail order, even when online won't do.

We're talking about a ~$20-$30 headset. I know that's not chump change for many, but a biconcave lens isn't something one is going to find in most households. or for that matter most-anywhere but specialty sources. If you can afford a smart phone in the first place, then I expect you can save to buy the real thing.

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steveastrouk
steveastrouk

3 years ago

Ask a local optician what they can do.

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steveastrouk
steveastrouk

Answer 3 years ago

45mm though is 1/0.045, or 22 dioptres, which is a LOT for spectacle lenses !