The design optimizes the light prescription of free form optics. In the vertical direction to the wall, light ray
is directed from 0° to 45° gradually, all the ray will be stopped by the wall.
In the horizontal direction, according to the design the diffuse angle is 6°，a V-shape high contrast light
pattern will be visible on the wall.
Requirement of casing:
Anodized black, to produce a high contrast V-shape boundary
Fig.1 Lens and LED assembly
Fig.2 Ray-tracing showing light ray from the lens perpendicular to the wall
Fig.3 Ray-tracing showing light ray from the lens parallel to the wall
Fig.4 Different views of the lens
Fig.5 A-A & B-B section view
Fig.6 Different views of the casing
Assuming the flux of LED is 100 lx, distance of the lens from the wall is 50mm, and the following is a computer simulation:
Analysis showing the light intensity on a screen in a distance 1m from the lens:
Fig.8 (a)~(e) Analysis showing the light pattern & CD on the wall