Bruker NanoScope OMV-UNIVERSAL User manual

© Bruker Corporation, 2008, 2011 Part Number: 013-213-000
112 Robin Hill Road
Santa Barbara, CA 93117
805.967.1400
NanoScope Optical Viewing System
Model OMV-UNIVERSAL
Support Note 213, Revision C
Document Revision History: Support Note 213
Rev. Date Sections Ref. DCR Approval
C 01-19-2011 Re-branded Ruth Wishengrad
B 11/21/08 OMV-Universal Update N/A D. Paszkeicz
Support Note 213 details the components, assembly, and adjustments to the NanoScope
Optical Viewing System, model OMV-Universal. Compliance with the following assembly
and adjustment directions are essential to successful and safe installation. This support
note includes:
•Components: Section 213.1
•Assembly of Optical Viewing System: Section 213.2
•Remove Contents from Packing Box: Section 311.2.1
•Screw Support Pole to Granite Base: Section 311.2.2
•Mount Split Collar and Delrin Washer: Section 311.2.3
•Install Focus Mount Assembly: Section 311.2.4
•Mount the Optical Assembly: Section 311.2.5
•Attach Camera and Fiber Optic Cable: Section 311.2.6
•Connect the Illuminator: Section 311.2.7
•Connect the Video Output: Section 311.2.8
•Adjustment of the Optical Viewing System: Section 213.3
•Mount the SPM and Adjust the Camera Height: Section 311.3.1
•Set Illuminator Level: Section 311.3.2
•Fine Alignment of SPM and Camera: Section 311.3.3
•Suggestions: Section 213.4

2 NanoScope Optical Viewing System Rev. C
Bruker offers the NanoScope optical viewing system as an aid for aligning “TipView” STM
and MultiMode™ scanning probe microscopes (SPMs). The optical viewing system
consists of a camera, which is mounted vertically over the head of the SPM to view both
sample surface and tip.
Figure 213.0a Complete NanoScope Optical Viewing System

Components
Rev. C NanoScope Optical Viewing System 3
213.1 Components
The optical viewing system includes the following:
• Granite Base— The twenty pound granite slab is supported on four isolation
pads to dampen vibration for general scanning. An X-Y translation stage is
bolted to the granite for convenient lateral positioning of the SPM. For
extremely high magnification scans, the optical viewing system should be set
atop a vibration isolation table.
• Support Pole— The stainless steel pole is screwed onto the granite base to
support the combined focus mounting and optical assemblies.
• Bolt, Washer and Allen Wrench— Secure the support pole to the granite base.
• Optical Assembly— Consists of camera, objective and microscope body.
• Focus Mount Assembly— Supports the optical assembly and permits vertical
motion for focusing.
• Split Collar— Clamps to the support pole to rest the focus mount assembly. This
may be positioned anywhere along the length of the support pole.
• Delrin Washer— Fits over the pole, between the focus mount assembly and the
split collar. Allows low-friction rotation of the focus mount assembly.
• Illuminator— Provides light for the optical viewing system, relayed via fiber optic
cable to the optical assembly.
• Fiber Optic Cable— Connects the illuminator to the optical assembly.
• Camera Power Supply— Connects the optical viewing system camera to the
monitor using a BNC connector cable and provides power to the camera.
• Monitor (Optional)— Displays the video image.
• Support Note 213, NanoScope Optical Viewing System - (This document.)
CAUTION: Cables should not be removed or installed while power is applied to
the system.
CAUTION: Connecting cables while power is applied may damage the
instrument.

Assembly of Optical Viewing System
4 NanoScope Optical Viewing System Rev. C
213.2 Assembly of Optical Viewing System
311.2.1 Remove Contents from Packing Box
Carefully unpack all components from the packing box and check against the list supplied
in this document. If components are damaged or missing, contact Bruker immediately.
311.2.2 Screw Support Pole to Granite Base
Set the granite base on its side, with the counter-bored side of the hole accessible, and
both X-Y translation stage adjustment knobs projecting into free space. DO NOT REST
THE GRANITE BASE ON EITHER OF THE TWO X-Y TRANSLATION ADJUSTMENT
KNOBS—THEY MAY BE DAMAGED.
Figure 213.2a Granite Base Positioning for Insertion of Socket Head Bolt
Insert the 1/2-13 socket head bolt and 1.5” OD washer from the underside of the granite
base through the hole. Screw the bolt into the support pole until snug, then tighten the
socket head bolt using the allen wrench supplied. Carefully set the base and support pole
in an upright position on a stable surface.

Assembly of Optical Viewing System
Rev. C NanoScope Optical Viewing System 5
311.2.3 Mount Split Collar and Delrin Washer
Orient the split collar with its grooved side upward, then slide it over the support pole and
position half way down the pole. Tighten the split collar until the collar is firmly secured.
Slide the delrin washer over the pole and rest atop the split collar.
311.2.4 Install Focus Mount Assembly
Slide the focus mount assembly down the support pole until it rests atop the delrin washer
and split collar. The focus mount assembly should be oriented with its mounting ring up.
Tighten the focus mount assembly until firmly secured.
311.2.5 Mount the Optical Assembly
Fit the optical assembly into the focus mount assembly, then rotate the optical assembly
until the fiber optic cable is oriented as shown in Figure 213-3. Insert and tighten a
thumbscrew through the mounting ring to secure the optical assembly.

Assembly of Optical Viewing System
6 NanoScope Optical Viewing System Rev. C
311.2.6 Attach Camera and Fiber Optic Cable
Attach the camera cable to the top of the camera using the elbow connector provided. The
connector is keyed so that it plugs onto the camera’s connector in the proper orientation.
Push the connector down until the outside ring snaps into place, locking the cable
connector to the camera. Route the cable through the retaining clip on the left side of the
focus mount assembly. Plug the camera power supply into the power strip. The power
supply is autoranging to line voltages 100-240 VAC and 50 or 60 Hz.
Figure 213.2b Mounted Optical Assembly.
Note: Orient camera body as shown (inset)

Assembly of Optical Viewing System
Rev. C NanoScope Optical Viewing System 7
311.2.7 Connect the Illuminator
The free end of the fiber optic cable mounts in the front of the illuminator. The included
adaptor, an aluminum ring, reduces the nosepiece of the illuminator down to hold the 5-mm
diameter fiber cable. Insert the ring in the illuminator first, making sure that the clamping
pin in the ring is aligned with the thumbscrew in the illuminator. Then insert the fiber and
tighten the thumbscrew by hand until the fiber is firmly held in place. If the fiber is not held
securely, then re-check that the thumbscrew is aligned with the clamping pin in the adaptor
ring. Once the fiber is in place, the illuminator should be plugged into the power strip. The
illuminator is autoranging on line voltages 100-240 VAC and 50 or 60 Hz.
311.2.8 Connect the Video Output
The video output of the OMV camera is NTSC format. The video output cable is the free
BNC connector attached to the camera power supply.
MultiMode V systems include a video framegrabber in an expansion slot in the control
computer. The included BNC-to-RCA adaptor should be used to connect the video output
cable to the framegrabber card.
MultiModes with NanoScope 3D controllers may be sold with either an optional
framegrabber (model BIOFG) or an optional monitor (model OMV-MONITOR). In the case
of the framegrabber, the video output cable connects to the framegrabber with the BNC
connector. In the case of the optional monitor, plug the video output cable into the “V1 IN”
BNC on the back of the monitor. Then plug the monitor into the power strip. The monitor is
also autoranging on line voltages 100-240 VAC and 50 or 60 Hz.

Adjustment of the Optical Viewing System
8 NanoScope Optical Viewing System Rev. C
213.3 Adjustment of the Optical Viewing System
311.3.1 Mount the SPM and Adjust the Camera Height
Using the focus mount assembly’s adjustment knob, raise the optical viewing system to a
height sufficient to clear the SPM to be used with the optical viewing system. Set the SPM
atop the X-Y translation stage on the granite base.
NOTE: Slots are provided on the X-Y translation stage to accommodate “TipView” STM and
MultiMode scanning probe microscopes. These microscopes feature precision balls on their
bases and will mate kinematically with the stage. The SPM should be oriented to face forward.
Using the split collar and focus mount assembly adjustment knob, carefully position the
camera objective until it is aligned with the SPM head’s viewing aperture. The camera
objective should be positioned approximately 13 mm above the height of the head’s laser
adjustment screws.
DO NOT CRASH THE CAMERA OBJECTIVE INTO THE SPM HEAD! It is safest to position
the camera objective just barely above the head’s laser adjustment screws, then focus the
optical viewing system by raising it upward (never downward!). This will prevent crashing the
camera objective.
311.3.2 Set Illuminator Level
Switch the illuminator on and then adjust the illuminator knob, increasing the light intensity
until an image appears on the monitor.
The illuminator intensity should be set to a level which is sufficiently bright to clearly view
objects in the camera’s field of view, but no brighter.
311.3.3 Fine Alignment of SPM and Camera
Use the X-Y translation stage to align the SPM and optical viewing system. The camera may
be rotated in the beam splitter body to obtain proper angular alignment on the monitor. The
monitor should render a “true” image, showing the probe positioned at the right side of the
screen.

Suggestions
9 NanoScope Optical Viewing System Rev. C
213.4 Suggestions
When operating your SPM with the optical viewing system, it is recommended that the tip be
brought close to the sample surface BEFORE aligning the laser with the tip.
If specks of dirt appear on the video image, clean the camera objective’s dust cover (the clear
glass plate located on the business end of the camera). The dust cover is removed by
unscrewing the camera objective. Clean inside and out, then replace.
Use adjustment knobs on the focus mount assembly to raise and lower the camera; however,
tension in the mount assembly’s slide must be maintained sufficiently to prevent the optical
assembly from slipping downward. To adjust tension in the focus mount assembly slide,
counter-rotate left-right adjustment knobs clockwise as shown below:
Figure 213.4a To increase tension, turn both knobs CW
It is recommended that tension be adjusted with the SPM removed to ensure the objective
does not drop onto the SPM head.