400
300
200
100
500
480
360
240
120
600
60°
42°
82°
35°
3,5 mm
Patent-pending proprietary optic system
made by a thin black square-meshed
grid and by a system of square plano-
convex lenses of appropriate beam
angle. The internal part of the grid is
white painted and has a high reflection
coefficient, so that the light incident on
the grid is retrieved within the body.
A net ‘cut off’ at the required angle is
obtained through this system.
The convex profile of the lens is
designed with images optic techniques,
so that the emission is limited within the
65° required by standard EN 12464.
UGR<19
Angle luminance equals to 65° and
beyond: <3,000 cd/m2.
Controlled emission LED optic System
UGR index control and 65°
luminance (EN 12464)
Functioning scheme
Grid
Lens 9x9
mm
light OFF
light ON
The grid positioned over the lenses
allows only the rays falling into the
required output angular limits to be
incident to the lenses.
The rays beyond these limits are
recovered and redirected inside the
light box (if the ray is incident to the
white surface) or cancelled (if the ray is
incident to the black edge).
Operating diagram of the optical
device used:
Direct emission
Direct emission + indirect
166
167
