Toshiba E-STUDIO520 - Page 163

8
March 2005 © TOSHIBA TEC e-STUDIO520/600/720/850 LASER OPTICAL UNIT
8 - 3
Fig.8-3
fθ lens 2
Laser driving PC board-1 Laser emission unit
1st laser diode
Finite focus lens
Laser driving
PC board-2
2nd laser diode
Finite focus lens
Half mirror
Galvanic mirror
Cylinder lens
Polygonal motor
fθ lens 1
H-sync detection PC board
Laser control PC board
2nd turnup mirror
H-sync turnup mirror
Slit glass
(
Laser beam exit
)
1st turnup mirror
e-STUDIO850
[
Laser optical unit overview
]