| 摘要 |
A light fitting (1) for illumination comprising a source of light (2), a reflector (3) and a glass cover (4), where the source of light (2) has an essentially punctiform configuration, where the surface of the glass cover (4) comprises a number of lenses (5) arranged to refract the light in an asymmetrical manner such that a rectangular or square area on a surface that is perpendicular to the optical axis of the lens (5) is illuminated, where the glass cover (4) comprises mutually parallel and upwardly protruding crests (7) formed by two opposing side surfaces (8, 9) that are angled to one another, whereby each wave section of a crest (7) constitutes a prism for the refraction of light incident from the reflector (3). The invention is characterised in that a part of the first- mentioned lenses (5) has been removed in the centre of the said glass cover (4) and replaced by a second lens (10), in that the said second lens (10) comprises a number of lenses, where each one of these lenses has a square or rectangular shape as seen in the direction of the light passing from the reflector, and is arranged to refract the light in an asymmetrical manner such that on a surface that is perpendicular to the optical axis of the lens a rectangular or square area is illuminated. |
