LightLas 532 – Operator's Manual Rev. No 01 Page 78 of 115
5.5.2.1B Attachment Slitlamp LDU
Prior to pre-check and realign the attachment Slitlamp LDU, ensure all the corrected
installation or setup are in placed to proceed the following steps.
Slit Integrity Checkout
1. Set a narrow slit width with low intensity illumination and verify that the slit is
focused. If the Slitlamp focus is OK then set it to a smaller spot size aperture and
observe the red aiming beam.
Aiming Integrity and Focus Checkout
2. Set spot size to the smallest by adjusting the zoom pc
3. Power on the console and toggle the mode to “Treat” mode
4. Verify if aiming round spot is reflected on the target rod
5. Adjust the spot size from 50 to 500µ by rotating the zoom pc and verify if the spot
size is consistently enlarged from smallest to largest
6. Adjust Mounting arm’s black knob (old type version) or the Delivery Main Body
locking screw (new type version) to align the focus correctly and then secure the
screw tightly (refer to fig. 5. 28a-b)
7. Remove the target rod and place a piece of black tape or thermal paper on the
chinrest
8. Verify the slit and aiming beam focus are in focus together
Micromanipulator Joystick Movement Checkout (applicable only to old version type)
9. Place back the target rod and verify the micromanipulator joystick is moving within
the full range of the field view and in the center portion when illumination spot is
set at largest (Applicable only to old version type refer to fig. 5.29)
10. Ensure the illumination spot is reasonable in the center portion of field of view. If
not refer to below steps for fine tune-up:
10a. Loosen the mirror nut that clamp to Main body (refer to fig. 5.30) and low
or raise will center the beam correctly and retighten when achieved or
10b. Loosen the set screw on the side of Tonometer using 1.5 mm allen key and
adjust the rod on the Tonometer mount post (refer to fig. 5.30) in aside
way to achieve the centering beam and retighten when achieved the
position
10c. Ensure the set screw is tighten and the rod is removed (keep it in a safe
location) upon completion
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