Motic AE20 - Page 12

11
Brightfield objective being used
Phase annular diaphragm not in optical path
Phase annular diaphragm and objective phase
symbol do not match
Slider annular ring image has moved away from the
objective phase plate image
Image quality:
No image under phase contrast or details
cannot be viewed
Thickness of specimen holder is outside the
compensating range of objective
Interpupillary distance not adjusted
Diopter adjustment not made
Inadequate illumination
Eye strain or fatigue
Field of view of left and right eyepiece differ
Brightfield objective being used
Phase annular diaphragm not in optical path
Phase annular diaphragm and objective phase
symbol do not match
Slider annular ring image has moved away from the
objective phase plate image
Image quality:
No image under phase contrast or details
cannot be viewed
Thickness of specimen holder is outside the
compensating range of objective
Interpupillary distance not adjusted
Diopter adjustment not made
Inadequate illumination
Eye strain or fatigue
Field of view of left and right eyepiece differ
Electrical
Problem Possible Cause
Power supply not plugged in
Lamp not installed
Lamp does not light
Lamp burnt out
Inadequate brightness Specified lamp not being used