Hikarigami Lighting Forges New Finishing Techniques

The power of craft has touched every facet of design since the dawn of time. At the Harvard Graduate School of Design, students Annie Xing, Luke Fiorante, Joseph Fujinami, and Chi Zhang investigate the logic of making by hand—and whether the modalities of robotics can learn these distinctly human gestures. A portmanteau of two Japanese words––”hikari,” meaning light, and “kirigami,” the art of cutting and folding a single sheet into three-dimensional form––Hikarigami explores the intersection of digital code and physical force.

A cylindrical lamp with an intricate, patterned metal shade emits light in a dark room, casting decorative shadows on the surface around it.

Sheet of metal with a repeating geometric pattern of interlocking curved lines cut into the surface, shown under direct lighting.

What begins as a flat aluminum sheet evolves into a volumetric luminaire composed of six formed panels, each contributing to a dynamic field of light. A function of both process and progress, the material is first laser-cut with a variable lattice pattern derived from computational simulations, then shaped through robotic incremental forming—transforming the planar into the spatial without the use of molds or conventional tooling.

A CNC laser cutting machine cuts intricate patterns into a sheet of metal in an industrial setting.

Close-up of an illuminated decorative metal panel with a repeating geometric cutout pattern, casting intricate shadows and light patterns.

Alike to chainmail, each motif follows a continuous logic, yet no two are identical. The lattice varies in density and geometry, guiding how the aluminum bends, resists, and ultimately refracts light. The result is a porous, light-refracting surface where structure, texture, and illumination emerge simultaneously from a single act of making.

A close-up of a decorative panel with repeating abstract cut-out patterns, illuminated from behind by warm light.

A robotic arm—an ABB industrial model guided by Grasshopper and custom toolpath scripts—presses into the metal sheet with sub-millimeter precision, forming each panel point by point. This process, known as single-point incremental forming, borrows from aerospace and automotive manufacturing, yet is recontextualized here as a tool for design exploration. Each deformation is deliberate, yet responsive, producing subtle variations that make every panel—and every projection of light—distinct.

A geometric metal table lamp with intricate cutout patterns emits soft light, creating decorative shadows on a gray surface. The lamp is plugged in with a visible black cord.

View looking upward through a metallic, geometric structure with intricate cut-out patterns and a pentagonal opening at the top.

Seemingly similar yet with a modality all its own, Hikarigami’s magic comes from within. When illuminated, the six panels act as both diffuser and lens, casting caustic light patterns that shift across walls and floors. The experience is neither static nor singular; it evolves with movement, angle, and proximity, dissolving at times into atmosphere, and at others revealing a dense, almost textile-like surface language.

A close-up of a decorative metal lamp casting patterned light and shadow on a nearby wall and surface.

The raw, unfinished aluminum bears the marks of its own creation—subtle irregularities, directional grain, and residual tensions left by the robotic tool. These are not imperfections, but a visible record of process, allowing the object to carry its own romantic narrative of making. Over time, the material will continue to change, taking on a patina shaped by use and environment.

A geometric metal table lamp with a repeating pattern projects intricate shadows on a neutral background as it emits a warm light.

The Harvard graduate team is as follows: Annie Xing, who directed computational design and fabrication; Luke Fiorante, who specialized in robotic fabrication and toolpath programming; Joseph Fujinami, who led fabrication and structural assembly; and Chi Zhang, who contributed to robotic fabrication. Completed in 2025, the project delineates a new paradigm of manufacture—one where craft and automation are collaborators, and where variability and precision coexist within the same material language.

A decorative floor lamp with a geometric metal shade emits warm light, casting patterned shadows on the wall and floor; a wooden cabinet and a small table are nearby.

To learn more about the Hikarigami luminaire, please visit lukefiorante.com.

Photography by Annie Xing, Luke Fiorante, Joseph Fujinami, and Chi Zhang.

Growing up in NYC has given Aria a unique perspective into art + design, constantly striving for new projects to get immersed in. An avid baker, crocheter, and pasta maker, handwork and personal touch is central to what she loves about the built environment. Outside of the city, she enjoys hiking, biking, and learning about space.

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