
K.P. Cheung, Department
of Architecture, The University of Hong Kong
This page started in July 1997
Solux was designed and made primarily as a heliodon. However, Solux can be used as a universal sundial. See A related paper by KP Cheung.
The following photo P40 shows Solux as a sundial for Hong Kong (22.37 deg North) at 2:15 pm Apparent Solar Time (i.e. 2:10 Local Stardard Time) on 26 July 1997.
Solux can also perform the functions of a universal solar chart, and demonstrates sun-earth direction-time relationships.