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OPE-1-BA-e-1610 

 

10 

4.4  Colour filter 

 
Standardly the microscopes of the OPE-1 series are equipped with a blue colour 
filter. This filter is firmly connected to a holding ring an you can simply put it onto the 
housing of the field lens in case of usage. 
 
 
 

4.5  Con Polariser 

 
The condenser is firmly fixed onto a holding ring (condenser holder) underneath the 
microscope stage. The lever for the aperture diaphragm is directed towards the front. 
There is the ability to adjust the height of the condenser, but not to centre it.  
Right  beneath  the  condenser  the  polariser  is  attached.  According  to  the  application 
requirements it can be swung in or out of the beam path. 
We  recommend  that  you  use  the  course  adjustment  knob  to  bring  the  specimen 
stage to its uppermost position when you need to remove the condenser. Then use 
the  focus  dial  of  the  condenser  to  move  the  condenser  holder  to  a  low  position.  In 
this  way  the  condenser  can  be  taken  off  after  loosening  the  three  screws  on  the 
holding ring. You should avoid touching the optical lenses with bare fingers. 
 
 
 
 
 
 

Operation 

 

5.1  Getting started 

 
The  very  first  step  is  to  establish  a  power  connection  using  the  mains  plug.  You 
should  first  adjust  the 

dimmer

  to  a 

low  level

,  so  that  when  you  look  through  the 

eyepiece  for  the  first  time,  your  eyes  are  not  immediately  subject  to  a  high  level  of 
light. You can now switch on the 

lighting

 using the 

main switch

 

The next step is to 

place a slide

 with the sample on the round table. The object must 

be  prepared  accordingly  in  order  to  be  suitable  for  applications  with  polarised 
transmitting or reflected light. With help of the object holder you can fix the specimen 
slide to the table. 
The object can be only observed if it is located inside of the beam path.  
 
 
 

 

Summary of Contents for OPE 118

Page 1: ...RN Sohn GmbH Ziegelei 1 D 72336 Balingen E Mail info kern sohn com Tel 49 0 7433 9933 0 Fax 49 0 7433 9933 149 Internet www kern sohn com User instructions Polarisation microscope KERN OPE 1 OPE 118 V...

Page 2: ......

Page 3: ...Features 7 4 Assembly 9 4 1 Polarisation unit Microscope head 9 4 2 Objectives 9 4 3 Eyepieces 9 4 4 Colour filter 10 4 5 Condenser Polariser 10 5 Operation 10 5 1 Getting started 10 5 2 Pre focussing...

Page 4: ...n additional risk of triggering an electric shock 1 2 Notes on the electrical system Before connecting to a mains power supply you must make sure that you are using the correct input voltage The infor...

Page 5: ...microscope is not being used you should cover it with the enclosed dust protective cover When doing this the power supply is stopped by switching off at the main switch and unplugging the mains cable...

Page 6: ...these are highly flammable substances You must therefore keep it away from naked flames and electrical devices which can be switched on and off and only use it in well ventilated rooms However organi...

Page 7: ...OPE 1 BA e 1610 6 2 Nomenclature...

Page 8: ...e pieces Objectives Illumination OPE 118 Finite Monocular WF 10x 18 mm Achromatic 4x 10x 40x 6V 20W Halogen Transmitted Product dimensions 360x200x400 mm Packaging dimensions 440x340x240 mm Net weight...

Page 9: ...OPE 1 BA e 1610 8...

Page 10: ...should always make sure that you do not touch the lenses with your bare fingers and that no dust enters the apertures The Bertrand lens and the analyser are inherent parts of the polarization unit The...

Page 11: ...en you need to remove the condenser Then use the focus dial of the condenser to move the condenser holder to a low position In this way the condenser can be taken off after loosening the three screws...

Page 12: ...soon as an image is recognisable no matter how sharp then you should only adjust the focus using the fine adjustment knob Adjusting the torque of the coarse and fine adjustment knob Next to the left a...

Page 13: ...g on its angle position between polariser and analyser For getting ideal results the centre of the rotation axis of the table must be aligned to the centre of the optical beam path The microscopes of...

Page 14: ...If the table is not or heavy to revolve even though the fixing screw is loosened this serves as an evidence for a significant decentration of the table 6 If the table is perfectly centre adjusted you...

Page 15: ...objectives you should use the silver ring above the objectives see illustration When rotating the nosepiece you must always make sure that the objective which is about to be positioned in the beam pat...

Page 16: ...ure diaphragm of the condenser to find the very best compromise between contrast and resolution for the microscopic image For the objective with the lowest magnification the lever of the aperture diap...

Page 17: ...in the field of view The slide of the Bertrand lens needs to be in the pulled out position for standard polarisation processes It can be moved into the beam path in order to observe the interference...

Page 18: ...connection point of its cable Now the new module has to be mounted in the same why as the original one After the bulb holder has been replaced in the underside of the device and the screws replaced t...

Page 19: ...y centred The condenser is too low The field of view is dark or is not correctly illuminated The objective is not positioned correctly on the beam path The selector switch for the beam path is between...

Page 20: ...Dirt dust on the front lens of the condenser Dirt dust on the object One side of the image is blurred The stage was not correctly fitted The objective is not positioned correctly on the beam path The...

Page 21: ...materials which you can dispose of at your local recycling centre Disposal of the storage box and device must be carried out by the operator in accordance with all national or regional laws in force...

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