SOM and SM Service News
Surgical Operating Microscopes
No. 10/95
To Service staff
Date/from June 28, 1995 /
File Workshop binder “Service News” / Service manual M695
Re. M695 surgical microscope in conjunction with multifocus objective 445 944
Leica AG
(Switzerland)
Restriction of illuminated area
lnspect the illumination
When the multifocus objective is used with the M695, the illuminated area available to the surgeon may be shadowed or vignetted even when the the lamp is correctly adjusted.
When you use the multifocus objective for the first time, inspect the illumination:
•Engage the shortest working distance (the shortest focal length).
•Engage the lowest zoom position (7).
•Inspect the illuminated fields produced by both of the lamps in the lamp changer.
•If the illuminated area is noticeably restricted, readjust the lamps.
Readjusting the lamp | The illumination of the field of view is influenced by the distance |
| between the lamp and the condenser lens. This distance can be changed |
| by means of the eccentric stop cam on the lamp changer. To obtain |
| uniform illumination, reduce the distance between the lamp and the |
| condenser lens. |
| Adjust the eccentric stop cam for both lamps in the lamp changer: |
| 1. Remove the multifocus objective and push the filter slide of the |
| M695 optics carrier towards the objective. Beneath the filter slide |
| you will find the adjusting screw for the eccentric stop cam. |