02-577-0282
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Optical Accessories
– A-IOB-xxxx Interference Objectives
– A-MOB-xxxx Bright Field Objectives
– OFV-102 / OFV-130-x Fiber Head
– OFV-153 Adjustable Reference Head
– OFV-C-102/110 Side Exit Head
– OFV-C-128 90° Side Exit Probe
– OFV-SR / OFV-MR / OFV-LR / OFV-SLR Front Lens
– VIB-A-10xLENS / VIB-A-20xLENS Microscope Lens
– VIB-A-100 Beam Deflecting System
– VIB-A-510 Illumination Module
– VIB-A-530 Side Exit Head
– VIB-A-531 Side Exit Head
– Mirror Kits
A-IOB-xxxx Interference Objectives
 

The variety of interference objectives available for Polytec’s topography
measurement solutions allows you to select magnification, working
distance and field of view to meet your application needs.

For for topography measurements through glass, all Michelson type
objectives feature a slot for a compensation glass to adjust the optical
path of the interferometer setup.

Specifications
 
Magnification
Working distance
Objective type
A-IOB-02X5
2.5x
10.3 mm
Michelson type
A-IOB-004X
4x
30 mm
Michelson type
A-IOB-005X
5x
9.3 mm
Michelson type
A-IOB-010X
10x
7.4 mm
Mirau type
A-IOB-020X
20x
4.7 mm
Mirau type
A-IOB-050X
50x
3.7 mm
Mirau type
A-IOB-100X
100x
2 mm
Mirau type

note : For instrument-specific specifications (e.g. field of view) please refer to the respective datasheet.

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A-MOB-xxxx-Bright Field Objectives

 The variety of bright field objectives available for Polytec’s microscope-
based vibrometers allows you to select magnification, working distance,
field of view and laser spot size to meet your application needs.
Specifications

 

Magnification

Working distance

A-MOB-001X

1x

13 mm

A-MOB-002X

2x

34 mm

A-MOB-03X6

3.6x

53 mm

A-MOB-005X

5x

≥34 mm

A-MOB-010X

10x

≥33.5 mm

A-MOB-10LD

10x

48.9 mm

A-MOB-020X

20x

≥20 mm

A-MOB-050X

50x

≥13 mm

A-MOB-100X

100x

≥6 mm

Note : For instrument-specific specifications (e.g. field of view, spot size) please refer to the respective datasheet.


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OFV-102/OFV-130-x Fiber Head


Mini Sensor (left), OFV-102 Fiber Head (right)
 
OFV-130-x Fiber Head

Fiber heads replace the default Mini Sensor of your OFV-55x Fiber Optic Interferometer and are used to adapt
the laser beam properties with respect to stand-off distances and spot size. Three Models for variable and
fixed-focus applications are available.

Specifications

  

 

Mini Sensor

OFV-102
Fiber Head

OFV-130-3
Fiber Head

OFV-130-5
Fiber Head

 

Standard

Accessory

Accessory

Accessory

Length

 

57 mm

approx. 105 mm

approx. 105 mm

Max. diameter

 

24 mm

24 mm

24 mm

Focal length

16 mm

20 mm

36 mm

42 mm

Stand-off distance

>60 mm

>80 mm

55 +/-2 mm

76 +/-2 mm

Spot size (typ.)

21 µm 
@ 60 mm,
324 µm 
@ 1000 mm

30 µm
@ 80 mm,
236 µm
@ 1000 mm

4

 

 
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 OFV-153 Adjustable Reference Head
 

For optimized performance of single point measurements with the
OFV-552 Differential Sensor Head. The OFV-153 Adjustable Reference
Head terminates the reference fiber when working in single-point mode.
A slider allows adjustment of the optical path length in the reference fiber,
thereby providing means to set the system to the visibility maximum.

OFV-552 Differential Sensor Head with OFV-153 Adjustable Sensor Head
Note: The OFV-153 Adjustable Reference Head requires the OFV-102 Fiber Head
 

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OFV-C-102/110 Side Exit Head
 

Provides 90° deflection of the laser beam. For use with the OFV-55x
Fiber Optic Interferometer.

Diameter: 5 mm (OFV-C-102) / 10 mm (OFV-C-110).

OFV-C-102 (bottom), OFV-C-110 (center)

Technical Details

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OFV-C-128 90° Side Exit Probe
 

For OFV-50x, OFV-525 and OFV-3×3 single-point heads. Deflects the laser beam by 90°. The direction of the laser can be
adjusted by rotating the tip of the adapter.

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  • OFV-50x Vibrometer Sensor Head
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OFV-SR/OFV-MR/OFV-LR/OFV-SLR Front Lens
 By using different front lenses with the single-point sensor head the
vibrometer is optimally adapted to different stand-off distances and
depths field. The longer the focal length of the objective the higher is
the signal level at the same stand-off distance whereas the depth of
field decreases. Exchange of front lenses is swift and easy.
Specifications
 

OFV-SR
Short- Range

OFV-MR
Mid- Range

OFV-LR
Long- Range

OFV-SLR
Super-Long- Range

Focal length

30 mm

60 mm

100 mm

200 mm

Min. stand-off distance

60 mm

185 mm

530 mm

1800 mm

Max. stand-off distance

5 m

10 m

100 m

>300 m

Spot size (typ.)

500 µm 
@ 2 m,
1260 µm 
@ 5 m

235 µm
@ 2 m,
604 µm
@ 5 m

135 µm
@ 2 m,
356 µm
@ 5 m

60 µm
@ 2 m,
168 µm
@ 5 m

Note: Data below are applicable for OFV-50x and OFV-525 single-point sensor heads only.
For use of OFV-MR and OFV-LR front lenses in conjunction with the PSV-400-x Scanning Vibrometers different specifications apply.

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VIB-A-10xLENS/VIB-A-20xLENS Microscope Lens

 By incorporating a microscope lens, your Polytec
vibrometer can examine microscopic objects in the same
way as you can examine large objects. The microscope
lenses are most suitable for measurement heads equipped
with an internal camera system.

Recommended accessories for use in conjunction with the microscope lens

  • VIB-A-Pxx Positioning Stages for fine adjustment of the test object
  • VIB-A-510 Illumination Module for optimum lighting
  • VIB-A-T30 Test Stand  
Specifications

 

VIB-A-10xLENS

VIB-A-20xLENS

Magnification

10x

20x

Working distance

37.3 mm

21.7 mm

Spot diameter

3 µm

1.5 µm


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VIB-A-100 Beam Deflecting System 

 

This accessory consists of an adapter plate to connect to your
vibrometer system and several optical components that can be used
individually or in combination according to your specific application
needs. The VIV-A-100 Beam Deflecting System allows a remote-
controlled, minimal deflection of the laser beam in order to avoid or
reduce speckle dropouts and thus to improve the signal quality.
A 90 o deflector is also available to enable measurements in positions
that are difficult to access with the normal configuration.
See datasheet for details.

    VIB-A-100 Beam Deflecting System Datasheet

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VIB-A-510 Illumination Module

 

LED light source providing a coaxial illumination of the test object.
The VIB-A-510 Illumination Module is designed to provide optimum
lighting conditions for examining small objects.

It consists of the actual illumination unit which is securely fastened to
the sensor head and a separate hand-held dimmer unit providing
continuously adjustable control of illumination intensity.

Note
  – The illumination unit is highly recommended for use with the VIB-A-10xLENS / VIB-A-20xLENS Microscope Lenses.
  – The illumination unit does not work in conjunction with the VIB-A-520 Telephoto Lens.

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VIB-A-530 Side Exit Head

 Attached to the objective lens of the sensor head, the
VIB-A-530 deflects the laser beam by 90°. The exit direction of
the beam is positioned by rotating the unit about the tube axis.
Specifications
  Working distance (from tube exit): 53 mm
  Note : The use of the VIB-A-534-CAx camera option will be impaired. 
             When utilizing the camera option, please use the VIB-A-531 Side Exit Head.
 

 VIB-A-531 Side Exit Head
 Attached to the objective of the sensor head, the VIB-A-531
provides a 90° deflection of the laser beam and the video image
(when camera option VIB-A-534-CAx is used). The exit
direction of the beam is adjustable by turning the unit.
Specifications

Working distance: 225 mm

 


Mirror Kits

 

Mirror kits contain general-purpose mirrors that are used to guide the
vibrometer laser beam into difficult-to-access areas. They offer
maximum flexibility for changing measurement situations. The high-
quality mirrors use dielectric coatings specially designed for helium-
neon laser (633nm).

All kits come with magnetic mirror holders. For mounting on non-
magnetic surfaces, mirror kits also include solid ferromagnetic base
plates.

 Alternative Products:
OFV-036-M 2-Axis Mirror Mount with He-Ne Mirror.

Features

 
A-MIR-2030 200x300mm
Mirror Kit
PSV-A-MIR Intermediate
Mirror Kit
PSV-A-MIR+ Premium
Mirror Kit
Included mirror sizes300 mm x 400 mm
 200 mm x 300 mm200 mm x 300 mm200 mm x 300 mm
 150 mm x 200 mm150 mm x 200 mm
 100 mm x 150 mm100 mm x 150 mm
 50 mm x 75 mm50 mm x 75 mm
Quantity of
mirror holders / base plates
(1)(2)(2)
Heavy-duty protection
case for storage
yesyesyes


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