LightLas 532 – Operator's Manual Rev. No 01 Page 42 of 115
1. Optical Fiber
This optical fiber connects between the Slitlamp LDU and the Laser Console. The
treatment laser and aiming beams are focused into the fiber.
2. Zoom System
This optical system allows the laser beams spot size to be adjusted at the
treatment site from 50 to 1000 m by rotating the control.
3. Spot size indicator
As the zoom system is adjusted the actual spot size at the treatment site is
shown in this indicator window.
4. Objective focus lens
This is part of the Slitlamp unit and the Laser beams are also focused by this lens
to the treatment site. The focus length is 117mm.
5. Magnifier Control
The magnification as seen by the doctor is adjusted using this control. The
selected magnification is shown on the knobs. A larger magnification will give a
larger image of the treatment site.
6. Binocular and eyepieces
The doctor looks through the eyepieces to view the patient. The Interpupillary
Distance can be adjusted as well as the individual’s Diopter settings for each
eyepiece.
7. Doctor Safety Filter
This safety filter is a standard set-up in every Slitlamp LDU and is located at
microscope housing. This filter will prevent back reflections during laser
treatment which may cause injury to the doctor’s eyes. Usually the filter is a
fixed optic lens however it is also an option to install a moving filter. The orange
filter provides protection >OD4 @ 532nm
8. Micromanipulator Joystick (old version type only)
This joystick is used for doctor or operator to accurately position the laser beams
spot within the central portion of the illumination field of the view.
9. Focus Set Screw
This screw is used to set the viewing focus of the microscope to be in sharp
focus on the Target Rod. Tightening this screw into the housing, the focus point
is moved away from the Target rod and it is towards the user. Loosening this
screw and then pushing the microscope housing up firmly against the screw sets,
the focus more towards the patient.
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