3 Responses to Iris-lid jewelry box opens by twisting

  1. theophrastus on said:

    Did ‘we’ ever settle on a terminology for irises that overlap versus ones (like this one) where the blades are all in the same plane? (all i can think of is something lame like “niris” for Non-interleaved-iris)

    Has anyone ever figured out how to manage a non-interleaved iris with more then five blades/vanes? I suspect that five is a mechanical limit because from six onwards the likely pivot point moves inside the portal circle.

  2. Sean Michael Ragan on said:

    The non-overlapping variety seems to be an anomaly. Since the leaves do not overlap, they do not completely block light and so are not very useful in optics. Consequently, the non-overlapping version seems to be basically a mechanical/sci-fi novelty–an unnecessarily complex way of opening a round door. Not that it isn’t super cool, of course; I’m just not sure it has any established practical application. I have a hard time believing that somebody, somewhere hasn’t already named it, if only for academic purposes, but so far no one has approached me with any evidence of a “proper” name. Which leaves me sort of stuck. I can’t really believe that no one in history has named the thing, yet, so I hesitate to propose a name of my own.

  3. I love interesting pieces like this one! It’s almost a puzzle.. and if you look at the design, it’s so creative! I can’t wait to see what new things they come out with. Hopefully some Antique Jewelry is in the works.

    -Sylvia

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