In Osaka City University, Graphic Science Education has been located as design language education constructed by knowledge and technique which facilitate intelligible communication making good use of diagrams. However, the effect of light flow is not sufficiently considered comparing to shape factor though light flow also give great effect to the works. Author believes that consideration of light flow is highly significant because the same shapes can give different impression with different lighting environment. Accordingly author introduced the assignment which design lighting equipment making use of CSG model. In this paper, consistency between the class with lighting equipment design and the past class, submitted works and evaluation of the assignment by students themselves are explained. Finally, the result of text data analysis for submitted works are described to show the impact of the works. Total byte of each submitted works and result of keywords search were examined to evaluate the impact. From these analysis, author conclude that lighting equipment design could raise the incentive to construct works of CSG model and the effect of the assignment also influenced the final works which were submitted after lighting equipment design assignment.
