Extended Data Fig. 5: The recording of reflected and transmitted colour.
From: Structural colour using organized microfibrillation in glassy polymer films
a, Illustration for experimental setup to record reflected and transmitted colour of polystyrene film (192 kDa) with BDABP printed on a transparent support. b, An example showing reflected and transmitted colour of the Kyoto University logo printed on a PET substrate. A camera (EOS Kiss X5, Canon) with macro-lens (60-mm EFS, Canon) was used to take the photos. The film reflects blue light and transmits the complementary yellow colour, which can be seen in the shadow of the film. The light source is a 190-W ultrahigh-performance mercury lamp (BenQ, China).
