These microscope objectives are new designs
intended for large-series production. They
combine a reasonable price with improved
flat-field performance and are excellent
for widefield views in microscopic research
in biology, medicine etc..
transmitted or reflected light
optimum field of view (in eyepiece), mm
20
maximum field of view (in eyepiece), mm
22
parfocal distance (DIN or RMS), mm
45 or 33
tube length , mm
160 or infinity
Some specifications:
N
MAGNIFICATION
NUMERICAL APERTURE
TOTAL WORKING DISTANCE, mm
TYPE OF ABERRATION CORRECTION
1
4 or 5
0.10
15.0
ICS PLANACHROMAT
2
10
0.25
12.2
ICS LD PLANACHROMAT
3
20
0.45
1.60
ICS C-PLANACHROMAT
4
40
0.65
0.68
ICS C-PLANACHROMAT
5
40
0.75 WAT
0.50
ICS C-PLANACHROMAT
6
40 or 50
1.0-0.7 iris
0.28
ACHROMAT
7
63
0.85
0.55
ICS C-PLANACHROMAT
8
100
1.20 WAT
0.31
ICS C-PLANACHROMAT
9
100
1.25 OIL
0.29
ICS C-PLANACHROMAT
10
100
1.25-0.7 iris
0.29
ICS C-PLANACHROMAT
Some optical diagrams of objectives showing the
designs developed by our specialists.
FOCUS Inc.
1B, 5-th Upper street,
Saint-Petersbourgh 194292,
Russia
Phone: +7-812-7154960
Phone/Fax: +7-812-9328906
E-mail:
focus@focusinc.ru