Nikon SMZ800N Instruction Manual page 67

 OCC (oblique coherent contrast) illumination
This stand supports OCC illumination so that a transparent sample can be observed at high contrast using diascopic
illumination with a white LED. OCC illumination is an oblique illumination method suitable for observing the phase objects,
where a sample is obliquely illuminated with a coherent illuminating light by shielding a part of the optical path using a
shading plate. With this illumination method, a colorless, transparent sample can be observed with relief and contrast.
To adjust the OCC contrast, turn the OCC adjustment knob. Adjust until the optimum observation state is obtained in
combination with the selected magnification and phase amount of the sample. In addition, the control position (knob
position) can be reproduced using the adjustment knob with a scale.
 Condenser lens
The base contains condenser lenses for low/high-magnification microscopy. Switch the condenser lens based on the
objective being used to ensure uniform diascopic illumination. A wide range of observation magnifications are supported.
To switch the condenser lens, slide the condenser lens switching lever to the right or left.
Slide the lens switching lever to the right:
Slide the lens switching lever to the left:
0.5X + condenser lens for low magnification
0.75X + condenser lens for low magnification
1X + condenser lens for low magnification
1.5X + condenser lens for low magnification
2X + condenser lens for height magnification
* Shading may occur in the low zoom magnification range.
 Filter
The base has three different filters: NCB11, ND4, and ND16. The individual filters can be inserted into and removed from
the optical path separately. To insert a filter into the optical path, push in the filter IN/OUT lever.
 Focusing mechanism
The support pillar moves vertically using the focus dial at the front of the base so that samples with height variations can
easily be in focus.
 Focusing stroke: 6.2 mm
 Stroke per focus dial rotation: 3.24 mm
 Attachable optional devices
The following devices can be attached optionally to this stand:
 P-SXY64 XY Stage
 C-SSL DIA Sliding Stage
 P-DF2 LED Dark Field Unit 2
 C-TRS Tilting Stage
 C-LSL2 LED Epi Illuminator 2 (via an SMZ-U Epi Arm)
 C-FDF Flexible Double Arm Fiber Illumination Unit (via a C-FIDH Fiber Holder)
 C-FID2 Double Arm Fiber Illuminator
 C-POL Simple Polarizing Attachment
45-mm dia. filter
A 45-mm dia. filter (no thicker than 2 mm) can be dropped onto the filter dropping ring (attached to the base optical path
immediately under the glass plate).
Chapter 4
Functions and Operations of the Devices
For low magnification; objective lens 0.5x to 1.5x
For high magnification; objective lens 2x
Usable objectives and recommended zoom magnifications
Objective
Zoom magnification
Bright-field diascopic
illumination
1.5x - 8x
1x - 8x
Min. - 8x
Min. - 8x
Min. - 8x
53
OCC illumination
Unusable
Unusable
3x - 8x
3x - 8x
2x - 8x