Olympus Measuring Microscope STM7

The Olympus STM7 measuring microscope offers excellent versatility and high-performance measurement of parts and electronic components with three-axis submicron accuracy.

Measurement through integrated optical microscopy and measurement capabilities. Years of microscope development deliver excellent observation: Olympus STM7 uses UIS2 infinity-corrected optics from current optical microscopes, providing high resolution/contrast and eliminating aberrations for precision detail measurement. Brightfield, darkfield, differential-interference and polarized images. A finely crafted granite stage base improves reliability. STM7-LFFEM analysis: the STM7 series uses a durable, vibration-resistant frame with granite base, whose stability enables submicrometer measurements with minimized error. Continuing as a height-measurement pioneer, it provides simple, precise 3-axis measurement. Confocal autofocus optical path: increasingly miniature, precise manufacturing requires accurate XY and Z measurements. Olympus developed active-reflection confocal autofocus for measuring microscopes to meet this demand. Strict traceability ensures quality: microscope accuracy is controlled through a rigorous traceability system, with traceable installation calibration. Measuring-microscope tracking system. STM7 emphasizes ease of use and stages suited to sample size. Common problems: short travel cannot measure large samples; traditional large stages have sufficient X but limited Y travel, requiring time-consuming sample rotation; narrow ranges prevent simultaneous arrangement of many samples. STM7 solution: four square-travel stages—50 mm×50 mm, 100 mm×100 mm, 200 mm×200 mm and 300 mm×300 mm—accommodate large or small samples. A clutch rapidly switches coarse/fine movement, allowing free, fast X/Y positioning. The 300 mm square stage offers equal X/Y travel, measuring entire 300 mm wafers or PCBs without rotation. STM7-CS50: 50mm x 50mm. STM7-CS100: 100mm x 100mm. STM7-CS200: 200 mm x 200 mm. STM7-CS300: 300 mm x 300 mm. Low/high magnification on one microscope. Common problem: conventional instruments accept dedicated measuring or metallurgical objectives, limiting observation options. STM7 solution: STM7 accepts measuring objectives with an adapter or metallurgical objectives after fitting a turret. STM7 thus combines metallurgical and measuring optics in one instrument. For large, fine or high-relief samples, STM7 supports suitable observation selection. Measuring objectives: very long working distance avoids contact when focusing high-relief samples; low magnification gives a wide field. Metallurgical objectives provide optical-microscope-level high magnification/resolution, plus brightfield, darkfield, polarization and differential interference. Brightfield and darkfield images. Manual/motorized focus choices: STM7 offers manual and motorized Z focusing independently of stage size. All frames have built-in Z linear scales, and all STM7 models support 3-axis measurement. Manual Z: familiar knobs provide economical, rapid vertical motion for samples of different heights. Motorized Z: improves handling and reduces focusing/height-measurement fatigue; coaxial coarse/fine knobs preserve familiar manual-style operation, with optional autofocus. Breakthrough control improves operation. Common problem: added functions require extra controllers; simultaneous operation is inefficient and units are often difficult to locate. Common problem: added functions require extra controllers; simultaneous operation is inefficient and units are often difficult to locate. STM7 solution: one STM7 control unit performs almost all operations, including counter reset, illumination, focus and autofocus. Position it anywhere for efficient, convenient one-handed use. Manual-Z controller: STM7-HS. Motorized-Z controller: STM7-MCZ. Control box: integrated power/communication for all units; additions such as focus navigation require no extra supply, saving space. Light manager improves observation/measurement efficiency. Common problems: analog knobs cannot quantify intensity, causing inconsistent illumination and measurements; intensity must be readjusted after each objective change. STM7 solution: STM7 digitally displays quantitative brightness for consistent observation conditions. An encoded turret identifies objectives, and the light manager stores illumination mode/intensity for each, automatically changing both when magnification switches. Examples: 5-times, intensity 50; 20X, intensity 70; 100X, intensity 120. Detachable counter can be placed conveniently for rapid result/status checking. Common problem: equipment status such as illumination and measurement results appear on separate units, complicating operation. STM7 solution: status/settings indicator lights show current conditions at a glance. X/Y/Z minimum increments switch between 0.1 μm and 1 μm, with millimeter, micrometer, inch or mil display. Detachable placement suits user habits: mount beside the frame near viewing height for standing operation, or put counter/controller on the bench for seated monitor-based or motorized-Z work. Counter mounted on frame; counter on bench. Height measurement: focus navigation for faster, simpler measurement. Common problem: visual height readings vary by operator and are slow. STM7 solution: repeatable, simple focus navigation projects patterns for the operator to align. Even apparently sharp visual focus has small errors; STM7 navigation reduces subjective influence by matching marks. Visual height measurement; focus navigation; below focus; focus; above focus. Autofocus enables fast, precise heights. Common problems: visual results differ between operators; repeated stage movement/knob focusing is slow; tiny objects such as wires are difficult to focus. STM7 solution: Olympus STM7 autofocus provides fast focusing and excellent repeatability for rapid height measurement regardless of experience. The dedicated STM7 unit likewise provides rapid heights regardless of experience. Active-reflection confocal operation focuses reliably on rough/sloping surfaces, while a small laser diameter focuses tiny objects such as wires. Single-focus mode instantly changes rough focus to sharp center-field focus. Tracking mode follows surface relief and maintains focus while the stage moves; hands stay on X/Y handles, improving Z measurement efficiency. Accessories expand observation/measurement. Encoded objective turret: with a digital camera, shows magnification onscreen and links switches to software calibration/intensity; brightfield and bright/darkfield versions. MM6-EMO upright monocular tube works with MM6-OCC10× crosshair eyepiece. STM7-FS foot switch transfers data hands-free while operators keep hands on X/Y handles. SZ-LW61 white-LED illumination is compact, lightweight, long-lasting, low power and cost effective, without flicker/brightness fluctuation. SZX2-ILR66+ SZX-RHS LED ring illumination and manual controller: SZX-RHS independently controls four segments of SZX2-ILR66 reflected illumination, providing clear high-color-temperature images and 13 patterns. Rotating stage: fine knobs align samples parallel. STM7-RS100 with STM7-CS100, 100mm×100mm stage; STM7-RS200 with STM7-CS200, 200mm×200mm stage; STM7-RS300 with STM7-CS300, 300mm×300mm stage. Measurement support: clearer display of microscope data/images makes even complex-shape measurement faster and easier. Olympus measuring software combines with digital cameras for precise, complex measurements.