View source for Olympus BH2-UMA

[[Category:Olympus]]

This has many parts. See the BH-2 page for a list of accessories.  Comes with slider blanks so that dust doesn't get in.

[[File:mcmaster_microscope_olympus_bh2_uma_0.jpg|300 px]]
[[File:mcmaster_microscope_olympus_bh2_uma_1.jpg|300 px]]
[[File:mcmaster_microscope_olympus_bh2_uma_2.jpg|300 px]]
[[File:mcmaster_microscope_olympus_bh2_uma_4.jpg|300 px]]
[[File:mcmaster_microscope_olympus_bh2_uma_5.jpg|300 px]]
[[File:mcmaster_microscope_olympus_bh2_uma_6.jpg|300 px]]
[[File:mcmaster_microscope_olympus_bh2_uma_7.jpg|300 px]]


= Removing cubes =

[[File:microscope_olympus_bh2-udf_removing.jpg|300 px]]

The cubes have a (6-32?) threaded part.  The illuminator should have a black screw/knob on the side for this but commodity screws can be used if its missing.  Thread the screw in and gently pull the cube out.


= Calibration procedure =

Notes for calibrating CNC microscope to get optimal images and maximum light output

First read "BH2-UMA Universal Veritcal Illuminator Instruction Manual".  It details the following alignments:
* Centering light source (pg 21)
** With and without centering screen
** Centering screen enlarges image to make it a little easier
* Centering field iris diaphragm (pg 22)
* Adjusting field iris diaphragm (pg 23)
* Adjusting aperature iris diaphragm (pg 23)

Setup:
* BH2-TR30 observation tube
* LH50A lamphouse
* Mitutoyo M Plan Apo objectives
* Special issue microscope body
* Custom built stage

Adjustments / degredation sources:
* Lamphouse can be rolled by loosening screw on side and turning it
* Lamp can be moved a in/out by turning screw on side
* Lamp can be moved a little more in/out by loosening screw on side
* Lamp can be tilted up/down by loosening screw on side
* Objective can be misaligned if rail is not in entirely
* DIC prisms can cause misalignment based on collet position
* Stage can be uneven for variety of machined surfaces not being tight
* BH2-UMA may not be aligned to observation tube...issue?
* BH2-UMA may not be centered from the two setscrews on the sides
* BH2-UMA has pinhole centering screws
* BH2-UMA has iris centering screws
* Cube misalignment/issues?
* Prism misalignment in observation tube?
* Camera not stable in observation tube
* BH2-UMA to observation tube misalignment
* Wrong lamphouse bulb
* Dirty objective
* Broken objective
* Ensure cube fully engaged
* Dirty cube
* Broken lamphouse IR filter
* Polarizers installed when not needed
* Observation tube camera/eyepiece slider not on position
* Sample is uneven

= UCLW =

[[File:mcmaster_microscope_olympus_bh2_uma_3.jpg|300 px]]