Ricoh Sargas-PJ1 Field Service Manual page 144

8. Detailed Description
A: Afocal lens
B: Dichroic mirror
C: Blue wraparound path
D: Phosphor wheel
E: Collimator
G: Filter wheel
F: DMD
Phosphor wheel
The phosphor wheel [A] is divided into 3 segments comprised of the blue transparency, yellow
phosphor, and green phosphor.
Since the phosphor wheel is prone to heat up, the device is equipped with a cooling fan [B] on its
top.
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