Iris Kiosk by Haoheng

Iris Kiosk

Collaborative Academic Project
Oct 2022 to Dec 2022
Teammate: Alex Yang
Instructor: Chuck Hoberman

The planar scissors are made of straight links and therefore have collinear pivots. i.e. the paths of the pivots of linkages are parallel.

The angulated scissors are made of bent links and therefore have non-collinear pivots. The paths of the pivots of linkages converge at a single point.The geometry of the link determines the movement of the linkage.

The planar angulated scissors can be projected to the surface of a cone and form a three-dimensional structure. The paths of the pivots converge at the peak.

This radial aperture is an innovative technology by Professor Chuck Hoberman. We tried to modify it by adding three groups scissor linkages to the core.
The three-dimensional structure can consist of three layers of angulated scissors. Outer pivots of the inner linkages connect to inner pivots of the outer linkages. The path of the pivots converge at the peak. The structure becomes a cone when expanded.

The structure with a radial pattern is symmetric, like the pattern of iris. Hence, it is named as iris structure. The iris structure can have any number of edges larger than three and any number of layers.