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ORC-228 Operation Microscope



 ORC-228 Operation Microscope:

Observation angle: 45°tilted

Magnification of observation: 6X

Focal length of objective: F=200mm, 250mm, 300mm, 400mm four objectives

Magnification changer: 3-step: 0.6X, 1X, 1.6X

Total Magnification: 2.4X-12X

Fine focusing distance: 10mm

Illumination: Coaxial illumination with cold light source fiber-optic cable, brightness adjustable

Lamp: 21V150W halogen lamp

Filter: Build-in green and yellow filter

With beamsplitter, TV adapter. Demonstrator optional

With 1-part arm, counterweight adjustable and can be locked

With floor stand. Column is short

Table of Optical Characteristics for ORC-228 Series Operation Microscope:

Item

Nominal value

Objective

F=200mm

F=250mm

F=300mm

F=400mm

Value on magnification change knob

1.6X

1X

0.6X

1.6X

1X

0.6X

1.6X

1X

0.6X

1.6X

1X

0.6X

Total magnification

12X

7.5X

4.7X

9.6X

6X

3.7X

8X

5X

3X

6X

3.8X

2.3X

Linear field(mm)

15.8

25.3

40.6

19.7

31.6

50.7

23.6

37.9

60.8

31.5

50.5

81

Exit pupil diameter(mm)

1.04

1.66

1.04

1.66

1.04

1.66

1.04

1.66

Exit pupil distance(mm)

15.3

Resolution (LP/mm)

67

44.5

29.7

60

35.4

27

47.2

31.5

23.6

35

27

19.8

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