Simple, innovative and attractive approach for geometrical optics, chromatic aberration and colour combination experiments

Abstract The laws of reflection and refraction and therefore the basic concepts of image formation with lenses are some topics that geometric optics deals with. Therefore, in this manuscript, laboratory practices are proposed that will cover concepts of geometric optics using both technological tools and everyday materials that allow the undergraduate or graduate student to obtain these concepts leaving the classical way in which they are usually addressed in classrooms or laboratories. Activities are also proposed that demonstrate phenomena such as chromatic aberration and the combination of red, green and blue (RGB) colours. For this purpose, electronic devices such as a Raspberry-pi (with a sense HAT module), a commercial programmable LED matrix, a hollow Christmas spheres, etc, will be used; giving a novel approach and allowing the use of new motivating technologies for both students and/or educators.