What to do if the Olympus BX51WI bulb does not light?
- JJill ReedAug 18, 2025
If the bulb does not light, it is likely that the bulb is burned out. Replace the bulb.

What to do if the Olympus BX51WI bulb does not light?
If the bulb does not light, it is likely that the bulb is burned out. Replace the bulb.
What to do if Olympus BX51WI bulb lights intermittently?
If the bulb intermittently lights and goes out: * The bulb is nearly burnt out. Replace the bulb. * A cord or connector is not properly connected. Connect cords and plugs securely.
How to clean dust from Olympus Microscope field of view?
If dirt or dust is visible in the field of view and the cause is dirt/dust on the eyepiece, clean thoroughly.
How to fix dark field of view on Olympus BX51WI?
If the field of view is dark when the bulb lights, there are several possible causes: * The aperture or field iris diaphragm is opened insufficiently. Open the aperture and field iris diaphragms. * The condenser is in too low a position. Adjust the condenser height. * The light path selector knob is set to the wrong position. Set the light path selector knob to the correct position. * The voltage selector knob is set to a low voltage position. Set it to the high voltage position.
Why is the Olympus Microscope image not sharp?
If the visibility of the observed image is poor, the image is not sharp, the contrast is poor, or details are poorly visible, consider the following: * The objective in use is not designed for UIS2 (UIS) series. Replace it with a specified objective for UIS2 (UIS) series. * The revolving nosepiece is installed incorrectly. Secure it by pushing in the sliding dovetail all the way until the stopper. * The objective is engaged incorrectly in the light path. Make sure that revolving nosepiece clicks into place correctly. * There may be air in the objective front lens. Remove the air.
What causes image glare on Olympus BX51WI?
Image glare can be caused by: * The condenser being set to too low a position. Adjust the condenser height. * The aperture iris diaphragm being closed too much. Open it sufficiently.
Why does the Olympus BX51WI Microscope image appear to waver?
If the image appears to waver, it could be due to: * The revolving nosepiece being installed incorrectly. Secure it by pushing in the sliding dovetail all the way until the stopper. * The objective being engaged incorrectly in the light path. Make sure that revolving nosepiece clicks into place correctly. * The objective being placed incorrectly (may be loose) in the revolving nosepiece position. Insert the objective all the way into the revolving nosepiece position until it is stopped. * The condenser being centered incorrectly. Center it correctly.
What causes one side of the Olympus BX51WI Microscope image to be blurred?
If one side of the image is blurred, check: * The revolving nosepiece is installed incorrectly. Secure it by pushing in the sliding dovetail all the way until the stopper. * The objective is engaged incorrectly in the light path. Make sure that revolving nosepiece clicks into place correctly. * The objective is placed incorrectly (may be loose) in the revolving nosepiece position. Insert the objective all the way into the revolving nosepiece position until it is stopped.
Why is brightness not changing on my Olympus BX51WI?
If the brightness cannot be varied with the light intensity control: * No lamp bulb is installed. Attach a lamp bulb. * The lamp bulb is burnt out. Replace the lamp bulb. * The lamp housing output connector is unplugged. Plug the lamp housing output connector.
Why is my Olympus Microscope field of view only slightly brighter?
If the field of view becomes brighter only slightly although the voltage is increased: * The condenser is centered incorrectly. Center it correctly. * The condenser is in too low a position. Adjust the condenser height.
| Type | Upright Microscope |
|---|---|
| Optical System | UIS2 |
| Condenser | Abbe condenser |
| Illumination | Halogen or LED illumination |
| Camera Compatibility | Compatible with various cameras |
| Stage | Mechanical stage |
| Focus | Coaxial coarse and fine focus knobs |
| Nosepiece | Revolving nosepiece |
| Observation Tubes | Binocular and trinocular observation tubes |
Operation and features of the microscope base and TH4 power supply unit.
Instructions for using the pre-focusing lever, fine adjustment knob, and frost switching lever.
Guide to placing specimens, moving the stage, and adjusting knob tension.
Procedures for switching objectives using different revolving nosepiece models.
How to adjust interpupillary distance, diopter, and use eye shades.
Centering the condenser and using oblique illumination.
Guidelines for using water immersion objectives and related caps.
Detailed steps for setting up and performing DIC observation.
Instructions for reflected light fluorescence observation.
Observing specimens using infrared light and DIC.
Performing macro observation with reflected light fluorescence.
Troubleshooting common problems related to the microscope's optical components.
Resolving issues with bulbs, wiring, and power supply.
Addressing problems with adjustment knobs, observation tube, and stage.
Diagram illustrating the sequence of module assembly for the microscope.
Step-by-step instructions for assembling microscope components and modules.
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