The STM7 series uses the same UIS2 infi nity-corrected optical system used in state-of-the-art optical microscopes. As a result, observed images have high resolution and high contrast, with aberration thoroughly eliminated to help ensure highly accurate measurement in minute detail.
The accuracy of Olympus’ measuring microscopes is controlled by a strict traceability system and Olympus even offers traceable calibration at the time of installation.
Measuring Microscopes Traceability System
Four types of stages are available, each with a unique square measurement stroke (choose from 50 mm x 50 mm, 100 mm x 100 mm, 200 mm x 200 mm, and 300 mm x 300 mm). From small to large size samples, there is a stage that fi ts the sample being measured.
A clutch system enables rapid switching between coarse and fine movements. Thanks to this switching function, the stage can also be moved rapidly along the X- and Y-axes, and freely across the XY plane.
The 300 mm square length stage enables the same measurement stroke to apply to both the X and Y-axes, which means it can be used to measure large samples, such as 300 mm wafers and printed circuit boards without changing their orientation.
The STM7 accepts both a metallurgical objective and a measuring objective by exchanging a revolving nosepiece with a measuring objective adapter. This means that the STM7 combines both metallurgical optics and measuring optics in one microscope. In this way, the STM7 series satisfi es a range of needs, no matter whether measuring a wide area or tiny region, measuring the size of differences betwe en levels, or assisting the user in deciding on the best observation method to choose.
Measuring Objectives
Because the measuring objectives have an extremely long working distance, they provide confi dence when focusing on samples with large peaks and troughs while reducing worries of the objective coming into contact with the sample.
Furthermore, their low-magnifi cation capability enables wide areas to be observed in a single view.
Metallurgical Objectives
Metallurgical objectives enable high-magnifi cation, highresolution observation capability comparable to that of optical microscopes. What’s more, these objectives can be used not only for brightfi eld, but also for darkfi eld and DIC observation.
> Click here for details about UIS2 objective lenses
Focus control is available with either manual or motorized operation. Choose the model that addresses your needs in terms of samples and measurement content, regardless of stage size—with all frames incorporating a linear scale for the Z-axis that enables 3-axis measurement.
Manual Z-axis Focus Models
Motorized Z-axis Focus Models
Controllers
With the STM7 series, a single controller makes it possible to perform virtually all measuring microscope operations, including use of readout reset, illumination control, focusing, and autofocus. For effi ciency and convenience, the unit can be placed wherever you wish and operated easily with one hand.
Control Box
The power supply and transmission for each unit are combined in a single control box. This preserves maximal workspace even when a range of optional functions, such as the focus navigator, are added.
Close Control through a Quantitative Digital Display of Light Intensity Values
The STM7 series provides a quantitative digital display of light intensity—enabling observations to always be made under consistent illumination conditions.
Light Intensity Manager Eliminates the Need for Manual Adjustment
Light intensity manager can be used with the coded revolving nosepiece confi guration. The coded revolving nosepiece automatically detects the switching of objectives. This allows the illumination method and light intensity to be registered for each objective, and adjusted automatically during measurements when the objective is switched. Now there is no need to manually adjust light intensity, which used to be required with every switch between magnifi cations.
Digital Indicator Enables the Current Operation Status to be Verified Visually
The indicator displays the device status and settings. The minimum X, Y, and Z-axis values can be switched between 0.1 μm and 1 μm, and the display units can be switched between mm, μm, inches and mil.
Detachable Digital Readout Allows for Individual Preference and Placement
Whether attached to the frame or a desk, the placement of the detachable digital readout is up to the individual user. While standing to take measurements, it can be placed on the side of the frame at almost the same height as the site of observation for an exceptional and easy view. When operating from a sitting position, such as observation or measurements on a monitor via a digital camera or when using the motorized Z-axis focusing model, simply place the digital readout and hand controller on the desk.
Simple and Highly-Precise Focusing System with Superior Repeatability
The Olympus’ focus navigator delivers highly reproducible height measurement by projecting a pattern within the fi eld of view and identifying vertical deviations. Slight errors can occur in height measurements taken with normal visual observation, even when focus appears to be sharp. The focus navigator, however, enables measurements to be made simply by matching up the marks—thereby reducing operator subjectivity in measurement results.
Dedicated Autofocus Unit: Outstanding Reproducibility and Focusing Speed
The STM7 dedicated autofocus unit allows highly accurate height measurements to be made with minimal time, regardless of the level of operator experience. Use of the refl ective active, confocal method provides a stable focal point independent of surface roughness or a slanting sample surface, while the small laser diameter enables the use of autofocus, even on minute objects, such as bonding wires.
One-shot Mode
Instantaneously takes autofocus from a roughly focused state to sharp focus located at the center of the fi eld of view.
TRACK Mode
The featured TRACK Mode provides autofocus that tracks the peaks and troughs of the sample, even if the stage is moved, keeping the image continually in focus. This advancement greatly improves the effi ciency of Z-axis measurements by enabling observations to be made without taking your hands off the X and Y handles.
Enables easy parallel alignment of sample.
The ability to clearly and easily see the output display component of measuring microscopes is essential. That is why the new Olympus measuring software has been created, helping to deliver complex measurements with greater accuracy. The software also enables the use of digital cameras.
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