2.4 Temperature
Lamp burner Mo foil , back < 350 degree C
Lamp burner Mo wire < 350 degree C
Lamp burner Mo foil, front < 350 degree C
Burner bulb (top) temperature 860 degree C - 960 degree C (measured with
pyrometer)
Validation of max. permissible temperatures by reference thermocouple measurement
based on a referece lamp housing .
2.5 Rise time
Rise time to 80% of the stabilized luminous output is < 90% sec .
Extensive cooling of the bulb during lamp run-up phase has to be avoided .
2.6 Hot restrike
If the unit has been off for more than 60 sec. the lamp must restrike .
( Ignition voltage 5kV +/- 3kV)
2.7 Light output
Ballast type Test conditions on electronic power supply
OSRAM PT VIP 3 AC/380 o3 stable at 200W
Stabilization time 5 min.
Luminous flux (initial values) typ. : 6300 lm @ 5.0 x 3.8 mm rect. aperture
min. : 5800 lm @ 5.0 x 3.8 mm rect. aperture
Color coordinates typ. x : 0.290 +/- 0.020
typ. y : 0.290 +/- 0.020
5
ViewSonic Corporation Confidential
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Do Not Copy PJ402D
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