Nikon SMZ800N Instruction Manual page 65

 LED brightness control selection switch On: Assigns control to the control box.
 LED brightness control selection switch Off: Assigns control to the base.
For details about the P2-CTLB Control Box, see "13 P2-CTLB Control Box."
 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, slide the OCC adjustment knob at the right front of the base back and forth. Adjust until the
optimum observation state is obtained in combination with the selected magnification and phase amount of the sample.
For ordinary bright-field microscopy under diascopic illumination, set the OCC adjustment control to the farthest position.
Sliding the control gradually forward from that position will cause the OCC effect to increase. Sliding the control by 46 mm
will result in a completely shielded state.
In addition, the control position (knob position) can be reproduced using the OCC adjustment knob with a scale.
Objective
0.5X
0.75X
1X
1.5X
2X
* Shading may occur in the low zoom magnification range.
Increasing contrast of the OCC observation image
For observations of the OCC observation image with higher contrast, remove the filter dropping ring (attached to the base
optical path immediately under the glass plate). The contrast can be increased by removing the filter dropping ring that
contains a diffuser plate to control excess contrast for OCC.
 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 5 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
Usable objectives and recommended zoom magnifications
Bright-field diascopic illumination
Zoom magnification
1.5x - 8x
1x - 8x
Min. - 8x
Min. - 8x
2.5x - 8x
51
OCC illumination
Contrast in the field of view is not uniform.
Contrast in the field of view is not uniform.
5x - 8x
3x - 8x
1.5x - 8x