A.39
controlled
emission
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480
360
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600
60°
42°
82°
35°
3,5 mm
→ Patent pending
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:
D i r e c t e m i s s i o n
D i r e c t e m i s s i o n + i n d i r e c t
402
403
