Peeq: Design for Reversibility

Peeq founder and inventor Raffi Holzer was completing his Masters in Engineering at Penn (University of Pennsylvania, Materials Science & Engineering) when he was challenged to come up with an innovation for something which people use every day.

Result: The world's first truly reversible sunglasses.

What’s so hard about reversibility?

Four Possible Mechanical Designs

Four Possible Mechanical Designs

At first I thought creating reversible glasses would be really simple. A double hinge like the one I created in the prototype to the right was all that was needed. The thing was, as people tried these glasses on, I realized they didn’t hold to your face. Most glasses arms don’t swing freely, they press against your temples. These glasses did not. And it turns out that creating a hinge that did that, and all the other things we wanted wasn’t so simple.

Our Requirements

We needed a hinge that would make the arms stick to your temples, fold up flat, and rotate horizontally around the frames rather than over them so you could show off different sides of the arms as well as different sides of the glasses body.

We came up with 4 different options.

The drawings above show how complex simple reversibility can get. Each option had pros and cons and we worked on each for a while. In the end though, we went with (drumroll please...) option #2! Option 2 has an amazing new patent-pending mechanism that allows us to achieve all the functionality we needed with no springs or other delicate pieces. It’s also got a really cool look. And while how it works exactly might be a little tough to glean from a still image, you’ll get to see how impressive it really is in an upcoming video.

Peeq - Prototypes.JPG

If you have any questions about these designs or any thoughts on colors and shapes you’d like to see in our coming collection, email and let me know. And please, sign up at to receive regular updates on Peeq’s progress!

Flat double-hinged prototype

Flat double-hinged prototype