OSRAM PrevaLED Core Z3 - Manual (Page 4)

PrevaLED ® Core Z3 LED modules | Optical considerations
4
2 Optical considerations
2.1 Light distribution
The light distribution of the LED module is shown in the
graph below. PrevaLED
® Core Z3 LED modules create
a beam angle of 115° FWHM (full width at half maximum).
2.2 Refl ector design
High luminous intensities (1.5–4.5 Mcd/m 2 ) are the key
factor for LED-based lamps and luminaires in the area of
refl ector applications such as spotlights. For this purpose,
light sources with small light-emitting surfaces and a high
luminous fl ux – as realized in the PrevaLED
® Core Z3 – are
required, because in such combinations, the light can be
collimated especially well with refl ectors.
The PrevaLED ® Core Z3 is equipped with a surface that
emits light evenly and makes the use of diffuser materials
unnecessary due to its high level of homogeneity. The
minimized light-emitting surface (LES) and a positioning of
the refl ector close to the LES allows for an improved optical
handling. Generally, the properties of the PrevaLED
® Core Z3
help to avoid roughness and facets, allowing for very small
total beam angles of 10° or less.
OSRAM provides mechanical (3D fi les) and optical simu-
lation data (ray fi les) to support customized refl ector
designs. Mechanical fi les can be downloaded at
www.osram.com/prevaled .
Ray fi le data are available upon request through your
sales partner. Available ray fi le formats are ASAP, SPEOS,
LightTools and Photopia (all bi nary).
75°
60°
45°
30° 15°
C 0°