1. Bartenbach, C., Moeller, M., Lanzenberger, R., 1987. Arrangement for illuminating a room with daylight. Patent 4699467, USA
2. Bartenbach, C., Moller, M., Lanzenberger, R., 1986. Window with reflectors for illuminating a room. Patent AU-B-56802/86, Australia
3. Courret, G., Scartezzini, J.-L., 1998. Anidolic solar blinds: sun control with three-dimensional optics. In: Goetzberger, A., Krainer, A. (Eds.), EuroSun 98, Portoroz, Slovenia, pp. II.3.7
4. Design and assessment of an anidolic light-duct;Courret;Energy Build.,1998
5. Edmonds, I.R., 1992. Permanently fixed collimation devices which combine the function of shading and daylighting building interiors. Patent AU-B-15055/92, Australia