Olympus Microscope Instructions
Terminology: 1. Brightfield. It is to observe the light reflected directly from the sample. The light from the
lamp is vertically guided through objectives and incident on the sample. It is the most common way of observing specimens.
2. Darkfield. It is to observe the scattered or diffracted light from the sample. The light from the lamp travels under an angle thus enhancing the scratches or flaws on the surface of the sample. It is suitable for examining flaws on mirror surfaces.
3. DIC (Differential Interference Contrast), also called Nomarski. It is a microscopic observation technique where a very small height difference on the surface of the sample (not visible with brightfield) becomes a three-dimensional image with improved contrast. This is achieved by using a combination of an analyzer, polarizer, and DIC prism.
4. Working Distance. It is the distance between the bottom edge of the objective and the surface of the sample when the sample is in focus. An objective with long working distance is much farther away from the sample than the objective with a regular working distance, thus minimizing the possibility of a collision between the objective lens and the sample. The working distance of the 100X objective is the smallest and it is ~ 1 mm. Do not ever bring your sample closer than 1 mm.
Nose piece with six objectives
Adjustment of the microscope light intensity
On-off switch for the microscope light
LBD (Light Blue Daylight) filter modifies the lamp spectrum to resemble that of the sun light.
Yellow filter cuts the UV light.
Knob to switch between brightfield (BF) and darkfield (DF).
Variable magnifier (1X, 1.25X, 1.6X, and 2X)
How to use the DIC prism?
This knob determines whether the light goes to the camera or the observers eye. Push in for the microscope observation, pull out for the camera.
Field stop by pulling the upper knob out you can adjust the field of view. Do not touch the bottom knob.
Aperture stop Do not touch these two knobs.
How to use DIC?
Inserted DIC prism
Loosen (counterclockwise) and tighten (clockwise) this knob every time you move the DIC prism. Whether being used or not, the DIC prism must be always tightened. That prevents it from accidental falling out (it costs ~ $3,000).
Pull this knob out if you are using 50X or 100X objectives. Push in for all other objectives.
Rotate this knob gently in any direction to achieve the best contrast.
DIC prism not inserted
If the DIC prism is used, both the analyzer and the polarizer must be inserted. If you would like to view your sample in the polarized light, pull out the DIC prism and leave the analyzer and polarizer inserted. To view it with white light, pull out the analyzer, polarizer, and the DIC prism. Since they cut most of the light, the light intensity will increase substantially. Reduce it. Remember, the analyzer, polarizer, and DIC prism can be used in brightfield only.
1. Always leave the microscope in brightfield (BF) with the yellow filer, LBD filter, analyzer, polarizer, and DIC prism inserted. Make sure that the prism is tightened. Check that the upper knob of the Field Stop (FS) and the Aperture Stop (AS) is pushed in and so is the knob that controls the light going to the camera. Turn the light switch on.
2. To view the sample with white light, pull out the analyzer, polarizer, and the DIC prism. Tighten the DIC prism after you pull it out.
3. To view the sample with darkfield, pull out the analyzer, polarizer, and the DIC prism, and move the knob from BF to DF position. You need to increase the light intensity.
4. After you are done, return everything back as described in step1 and turn off the microscope light.
Instructions for the digital camera (DP Manager) 1. Logon using your username and password. 2. Double-click the DPManager icon on the desktop. From the top menu select Capture
and Start DPController.
3. Set up the microscope and focus on the sample. When you are ready to take picture, pull out the knob on the upper right-hand side of the microscope. The camera can see your sample now.
Click Live Image under Capture menu found at the bottom of the screen. Your sample will appear on the screen.
Select the resolution. The true resolution of the camera chip is 1360 x 1024 pixels.
This allows you to integrate or average images.
Choose Auto for brightfield and SFL Auto for darkfield.
Choose the spot size. You may move the spot. The software uses the area of the spot to determine the brightness, etc., in the auto mode.
4. To adjust the color balance, select Color balance menu. Then select Manual and One Touch. When using brightfield, use buttons on the left side (White Balance). (When using darkfield, use buttons on the right side (Black Balance)). Point the mouse to the area in the image that should be white (black) and click.
5. Adding scale to the picture. Select Scale menu. Then select Show Scale and deselect Free size. A yellow scale will appear. Click and drag the scale to resize it. If you would like to include the scale in the image, select Include in Image. Otherwise, the scale will be on the screen but not saved in the image. Select the type of the scale bar and the number style. Next, choose the objective by clicking one of the six possible options. Finally, select the proper Adaptor Lens. The choice of the Adaptor Lens depends on the value of the variable magnifier. Use the following table to find the proper value:
Variable magnifier Adaptor lens
1 0.5 1.25 0.625 1.6 0.8 2 1
When selecting an objective, click here.
Do not click on the window next to it. That will start the recalibration of the scale.
6. Other functions.
Different ways to view the image on the screen. The fourth icon from the left gives 1360 x 1024 full screen image. Hit Esc to exit.
Color / gray scale
Add scale to the still image Help
Add text to the image
7. Image capture.
Click this icon to capture image.
8. Saving images. Up to 10 images can be saved in the buffer. To save images permanently, create your own folder under C:\Documents and Settings\Your-user-name\My Documents. Use jpg format for saving images. Pictures may be transferred via CD or USB memory stick.
9. Printing images. High-quality pictures can be printed using a dye-sublimation printer attached to the computer. The printer requires a special paper and the cost of each print is ~ $5.00. To prevent frivolous printing, you need to see us to get the paper. Do not feed regular paper into the printer. Always use Print preview to verify that the image fits on one page. If needed, reduce it. Most images do not fit on a single page.
10. Log off and turn off the microscope after you are done.
Alternate software for the digital camera (MicroSuite) The main difference between MicroSuite and the DPManager is that the MicroSuite allows to print multiple images, to add objects / text to the image, to perform and save measurements, and log and save text files associated with the images in a searchable database. 1. Logon using your username and password. 2. Double-click on the OLYMPUS MicroSuite icon on the desktop. The main screen consists
of several sections:
Image Buffer (can be shown as gallery or as a list)
3. Set up the microscope and focus on the samp n you are rea pull out
le. Whe dy to take picture,
the knob on the upper right-hand side of the microscope. The camera controls are found on the upper right-hand side of the computer screen:
t I Set Magnif cation ve 680x512 era
First, click on Set Input and select the proper value for the variable magnifier. Next, click on the Set Magnification and select the objective. Click on Live 1360x1024 to display
Se nput i Li Cam Snapshot (with different resolution) (select the (select the magn. or Control SQ = 680 x 512 pixels variable of the objective) Live 1360x1024 HQ = 1360 x 1024 pixemagnifier) (activates the SHQ = 2040 x 1536 pixels live image) UHQ = 4080 x 3072 pixels
the live image on the screen. Click on Camera Control to open the camera control panel. Inside the panel you will find controls that are similar to the DPManager software. However, the controls are arranged differently. Adjust the image.
Mode selection Spot Size controls White Balance (select Auto for (the software uses Sharpness
brightfield and the area of the spot SFL-Auto for to determine the darkfield.) brightness, etc., in Monochrome
the Auto mode.)
Full Screen View it Esc to cancel)
Wh you re ready to take the picture, click o e will appear in the Image Buffer.
4. e scale on the screen. To add the scale to the picture
5. en right-click the mouse
ks the image