Optical Polarization Filtering in Japanese Awa Odori Lantern Arrays

日本阿波舞灯笼阵列中的光学偏振滤波

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Awa Odori lanterns in Tokushima employ hand-blown glass diffusers with embedded birefringent crystal lattices that polarize emitted light along choreographed procession axes.
Each lantern’s orientation is surveyed to ±0.3° precision so that linearly polarized beams intersect at calculated Brewster angles across the dance floor’s lacquered cedar surface.

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