Colposcope Digital Imaging System
36
5.3 Observation systerm operations
5.3.1
Basic parameters
l
Binocular eyepiece foucus
：
160mm
。
l
Eyepiece
：
12.5
×
，
wide-angle vision adjustment
±
5D
。
l
Work distance
：
300mm
。
l
Eye-distance adjustment range
：
50-75mm
。
l
Mico focusing range
：
0-40mm
。
l
Image collection raster
：
f4.5-f32
。
l
Eyepiece magnification times and field of view
：
Input data
0.4
0.6
1.0
1.6
2.5
Magnification times
3.4
5.1
8.5
13.6
21.3
Diameter of filed-of-view
75mm
50mm
30mm
19mm
12mm
5.3.2 Operation
Pic 5-26 Front of Observation systerm
Binocular eyepiece
Digital CCD
CCDimage trimming device
Optical lens
Five-speed zoom focus knob
Filter knob
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