| 摘要 |
The invention relates to a light pipe for use in particular in an electronic display arrangement, and designed to transmit light signals from one of its ends referred to as an entry surface to its other end referred to as an exit surface going towards the eye of a user for viewing a virtual image, the pipe including a diffractive component on one surface, referred to as its improved surface, said diffractive component being an element satisfying the equation of an aspherical body of revolution. According to the invention, said diffractive component is formed directly on said entry surface. |
