Resolution = λ / ( 2
×
N.A.)
λ stands for wavelength ( λ = 0.55μmm)
﹡
Eyepiece view field
The max diameter measured when the diaphragm is open. 10X/20 means the magnification is 10X and
the max diameter of view field is 20mm
﹡
Effective view field
Liner view field which is observed on the object surface
Effective view field = eyepiece view field / objective’s magnification
﹡
Depth of field
Depth of field stands for depth of the space in which there is sharp image on the object surface. Depth
of field will be longer when the diaphragm reduces. Depth of field will be shorter when the N.A.
becomes bigger.
3. Configuration
Item
Content
Piece
1
Microscope’s body ( including stage, nosepiece,
coaxial coarse and fine focusing adjustment,
bracket for condenser, adjusting power supply,
halogen bulb and normal collector)
1pc
2
Siedentopf binocular inclined at 30
º
(360
º
rotatable)
1pc
3
Condenser ( with iris diaphragm, without
auxiliary lens)
1pc
4
Objectives
( Infinity achromatic
objectives)
4X
1 set
10X
40X
100X
5
WF10X eyepiece
2 pcs
6
Blue filter
1 set
7
Electronic cord
1 pc
8
Immersion oil
1 bottle
9
Dust cover
1 pc
10
Instruction and quality certificate
1 pc
11
Halogen bulb ( 12V20W)
2 pcs
12
Wrench 2.5, 1.5
1pc
Optional
Item
Contents
Piece
1
Collector with diaphragm
2
Condenser ( with iris diaphragm and auxiliary
lens)
3
Dark field condenser
4
WF10X eyepiece with reticle
5
WF15X eyepiece (15mm)
6
Objectives
(Infinity plan
4X
10X
