Abstract: A light screening device is provided with a clamping arrangement for attaching firmly and securely to the sun visor of an automotive vehicle. The clamp comprises two substantially T-shaped members slidably mounted to each other and includes a latching arrangement between the T-shaped members for locking the clamp in a selected size opening for attaching to sun visors of various sizes. The transparent light screen is slidably mounted to a bracket which is hingedly mounted to the clamp through a slider so that the light screen can be pivoted to a storage position juxtaposed to the sun visor or to a selected operative position below the sun visor. The light screen may also slide sideways relative to the sun visor to provide light screening in selected lateral positions.