OPTICAL FILM AND LIGHT FIXTURE WITH SUCH AN OPTICAL FILM

摘要

An optical film (1) made of a light-permeable material comprises a surface (13) and an optical micro-structure (11) having a plurality of elevations (111). The elevations (111) in the micro-structure (11) project from a reference plane (15) that is parallel to the surface (13). Each elevation (111) in the micro-structure (11) has a flank section (112) adjoining the reference plane (15), said flank section forming a uniform angle (α) with the reference plane (15). Said uniform angle (α) is in a range of approximately 33° to approximately 42° or in a range of approximately 35° to approximately 40°. The optical film (1) according to the invention allows a light fixture to have a relatively high glare suppression and at the same to produce a preferred light distribution curve (LVK). It can furthermore have a relatively flexible design and can be produced at low cost.