| 摘要 |
PURPOSE: To integrally mold an edge light panel to a wedge shape and sufficiently assure the uniformity of luminance by the scattering patterns thereof. CONSTITUTION: The scattering patterns 5 of the edge light panel 1 formed to the edge shape are composed by arranging right circular cones 6 and on the other hand, the depth and arranging density of the cones 6 which are the factors for scattering characteristics are reversed in the degree of scattering in such a manner that the depth is made shallow and the density is respectively made from coarse to dense in the direction of a non-incident end face 4 from an incident end face 3. The scattering characteristics are controlled by the correlative relation between the depth and the density. The change in the depth is specified to 1000 to 20μm and the density is changed by determining a spline curve as the basis for arrangement of the cones 6, by which the scattering patterns 5 having the high uniformity adequate for the edge shape are obtd. |
