Optical attachments and methods for emitting light

Abstract

Disclosed is an optical attachment (100, 200) for emitting light (116A, 116B) towards a target (106), the optical attachment (100, 200) comprising a hollow body (108, 202) of light guiding material, the hollow body comprising a through opening (110, 204), an outer surface (112A, 206A), an inner surface (112B, 206B) opposite to the outer surface (112A, 206A), a first output facet (114A, 208A), and a posterior facet (114B, 208B) opposite to the first output facet (114A, 208A); and the posterior facet (114B, 208B) arranged to receive light from one or more light sources (118A, 118B) and to guide the received light via the hollow body (108, 202) towards the first output facet (114A, 208A); and wherein the first output facet (114A, 208A) when in use is configured to emit light towards the target forming a first illuminated image (102, 302) of the first output facet on the target (106).