Technical specifications
Optical properties of VSTII lightheads
8
VOLISTA
IFU 01781 EN 19
95 / 106
8 Technical specifications
8.1 Optical properties of VSTII lightheads
Specifications VSTII 600 and 400 lightheads Tolerance
Illumination
23
10,000 lux to 160,000 lx
Nominal illumination (Level5)
23
130,000lx ±10%
Illumination in Boost mode (Level6)
23
160,000 lx 0 - 10%
Diameter d10
3
20 - 25cm ±15%
Diameter d50/d10
23
0.55 ±0.05
Illumination depth L1+L2 at 60%
3
50 cm ±10%
Colour temperature Fixed: 3900ºK
Variable: 3900ºK - 4500ºK - 5100ºK
±400ºK
Colour rendering index (Ra) 95 ±5
Special colour rendering index (R9) 90 +10/-20
Special colour rendering index (R15) 95 ±5
Radiant energy 3.3 mW/m²/lx ±0.5
Irradiance (Ee)
4
< 500 W/m²
UV illumination ≤ 0.7 W/m²
FSP system Yes
Illumination in ambient light mode < 500lx
Tab.32: VSTII lighthead optical data in accordance with the EN 60601-2-41 standard.
Residual illumination VSTII 600 VSTII 400 Tolerance
With one mask
23
55% 40% ±10
With two masks
23
50% 45% ±10
At base of tube
23
100% ±10
With one mask, at base of tube
23
55% 40% ±10
With two masks, at base of tube
23
50% 45% ±10
Tab.33: Volista lighthead residual illumination in accordance with the EN60601-2-41 standard
2
Measured with small light field and fixed colour temperature
3
Measured at 4500ºK with variable colour temperature
4
In nominal mode