Kodak DirectView CR 825 Theory Manual page 57

THEORY GUIDE
10DEC05
TG4825-1
Component
Page
57 of 120
LASER
COLLIMATING
OPTICS
MANUAL SAFETY
SHUTTER
GALVO
F-THETA LENS
FOLD MIRROR
Type 30 mW LASER DIODE DRIVER BOARD that emits a red
beam of light of high intensity. The LASER DRIVER PRE-
REGULATOR BOARD A18 controls the power of the LASER:
• Threshold" - supplies minimum power when the LASER is
moving to the start of the next line - retrace
• "Scan" - supplies full power to the LASER during scanning
• "Full-on" - used for diagnostics
Provides focus for the light beam to make the spot of light the
correct size on the SCREEN - not visible in the graphic.
Has a NEUTRAL DENSITY FILTER that decreases the power of the
light emitted by the LASER. When FEs check the operation of the
Optical subsystem, they can change the position of the SHUTTER to
make the light from the LASER move through the FILTER. The
FILTER decreases the power of the LASER, which prevents damage
to the eyes. The graphic on
MANUAL SAFETY SHUTTER when it is in the path of the LASER.
During normal operation of the CR 825/850 SYSTEM, the MANUAL
SAFETY SHUTTER does not block the path of the LASER.
Controls the motion of the light beam from the LASER across the
SCREEN in the fast scan direction - horizontal.
Changes the light beam from the LASER from a continual angular
position to a continual linear position.
Changes the direction of the light beam from the LASER to align it
in the center of the COLLECTOR.
Description
Page 54 indicates the position of the
Optical