Exploring Microscope Objectives
Optics play a crucial role in both cameras and microscopes, serving as the primary components that focus and magnify light to create clear and detailed images. Despite their shared fundamental principles, the objectives and lenses in these devices are tailored to meet distinct requirements based on their specific applications. This article delves into the objectives and lenses used in cameras and microscopes, highlighting their objectives, design, and functionalities.
Microscope objectives aim to magnify tiny specimens while maintaining high resolution and clarity. These lenses are crucial in scientific research and medical diagnostics, where observing fine details is essential.
Types of
Microscope Objectives
- M Plan Apo
- M Plan Apo HR
- PE IR
- PE IR 2000 HR
- NUV Plan APO
- DUV Plan APO
- Infinity M Plan
M Plan APO SEIWA Optical Objectivesz
SEIWA’s M Plan Apo lenses are high-resolution, long working distance objectives designed primarily for visible light applications. These lenses are compatible with PS-888 series microscopes and offer brightfield imaging with excellent optical correction.
- Long working distance
- Applications: Semiconductor inspection, Precision measurement, Brightfield microscopy for industrial and research use
M Plan APO HR SEIWA Optical Objectives
An enhanced version of the M Plan Apo series offering a larger image circle (up to 33mm) and a wider field of view, ideal for video microscopy and larger sensor formats. These lenses maintain superb correction and resolution for demanding inspection tasks.
- Enlarged image circle: 33 mm (7x larger than standard M Plan Apo)
- Long working distance
- Magnifications typically from 1.5X to 10X+
- Applications: Video microscopy, Large field-of-view imaging, Metrology and inspection with high resolution requirements
PE IR SEIWA Optical Objectives
PE IR lenses are designed for near-infrared (NIR) wavelengths (800-1600 nm), suitable for backside wafer inspection and photo emission detection. They offer good working distance and high numerical aperture optimized for NIR light.
Olympus Plan Fluorite Objectives are versatile lenses designed for a wide range of microscopy techniques including brightfield, darkfield, DIC, fluorescence, and polarization.
- Magnifications from 1X up to 100X
- Working distances from ~9.5 mm to 30 mm
- High N.A. up to 0.71
- Transmission in NIR spectrum (800-1600 nm)
- Applications: Backside inspection of wafers, Photo emission detection, Laser marking and cutting, Semiconductor and material analysis
PE IR 2000 HR SEIWA Optical Objectives
These are specialized short-wave infrared (SWIR) lenses with extended transmission in the 1000-2000 nm range, offering very high resolution and color correction over this broad wavelength. Designed for failure analysis and detection of extremely weak emission signals.
- Magnifications: 10X, 20X, 50X
- Working distance ~10-20 mm
- High N.A. up to 0.7
- Transmission range: 1000-2000 nm
- Color corrected for wide SWIR range
- Applications: Failure analysis of semiconductor devices, Detection of leakage currents and weak photo emissions, Advanced industrial inspection using SWIR imaging
NUV Plan APO SEIWA Optical Objectives
NUV Plan APO lenses are high-resolution objectives optimized for near-ultraviolet wavelengths down to 355 nm. They provide super long working distances and are corrected for bright field and near UV imaging.
- Magnifications such as 20X and 50X
- Long working distance (e.g., 10-12 mm)
- High N.A. ~0.5
- Applications: Semiconductor and LCD circuit repair, Thin film processing, UV laser applications and imaging
DUV Plan APO SEIWA Optical Objectives
DUV Plan APO objectives extend transmission further into deep ultraviolet (DUV) wavelengths (~266 nm), while maintaining high performance in visible light. These lenses support extremely precise laser cutting and repair tasks.
- High transmission down to 266 nm (DUV)
- Also transmits visible light up to 532 nm
- Suitable for Nd:YAG laser wavelengths
- High resolution and long working distance
- Applications: Semiconductor and LCD laser cutting and repair, Advanced photolithography, UV laser machining and processing
Infinity M Plan SEIWA Optical Objectives
Infinity-corrected M Plan series lenses offer flexible integration into modern optical systems with infinity optics. They maintain high resolution and long working distance, suitable for industrial and research microscopes.
- Infinity-corrected optical design
- Magnifications commonly from 10X to 40X
- Working distances ~10 mm
- High N.A. for sharp imaging
- Applications: Systems requiring infinity-corrected optics, Industrial inspection, Measurement and metrology systems
SEARCH:
- Choose a specific value to narrow down the table.
- The match must be exact
- For example: “UV”, “HR”, “100X”, “APO”
| Model | Magnification | Working Distance (mm) | N.A. | Resolving Power RP (μm) | Focal Depth DOF (μm) | Focal Length (mm): | Wavelength (nm): |
|---|---|---|---|---|---|---|---|
| NIR Plan PEIR-Plan-1x  | 1x | 12 | 0.03 | 22.4 | 611 | 200 | 800 – 1600 |
| NIR Plan PEIR-Plan-10X  | 10x | 30.7 9czy 30.4) | 0.27 | 2.5 | 7.5 | 20 | 550 – 1600 |
| NIR Plan PEIR-Plan-2.5x  | 2.5x | 28 | 0.1 | 6.7 | 55 | 80 | 450 – 1600 |
| NIR Plan PEIR-Plan-20x  | 20x | 12 | 0.5 | 1.3 | 2.2 | 10 | 800 – 1600 |
| NIR Plan PEIR-Plan-50x  | 50x | 10.0 | 0.6 | 1.1 | 1.5 | 4 | 900 – 1600 |
| NIR Plan PEIR-Plan-100x  | 100x | 9.5 | 0.71 | 0.9 | 0.9 | 2 | 900 – 1400 |
| SWIR High Resolution PE IR 50X 2000 HR | 50x | 10.0 | 0.7 | 1.4 | 1.2 | 4 | 1000 – 2000 |
| SWIR High Resolution PE IR 20X 2000 HR | 20x | 10.0 | 0.6 | 1.6 | 2.1 | 10 | 1000 – 2000 |
| SWIR High Resolution Silicon Correction PE IR 50X 2000 HRS NEW | 50x | 10 | 0.7 | 1.5 | 4 | 1000 – 2000 | |
| SWIR High Resolution Silicon Correction PE IR 20X 2000 HRS NEW | 20x | 10 | 0.6 | 2.1 | 10 | 1000 – 2000 | |
| SWIR High Resolution Silicon Correction PE IR 10X 2000 HRS NEW | 10X | 20 | 0.33 | 7.1 | 20 | 1000 – 2000 | |
| VIS M Plan Apochromat M.PlanAPO100XSBS  | 100x | 14.1 | 0.52 | 0.6 | 1 | 2 | VIS |
| VIS M Plan Apochromat M.PlanAPO50XSBS  | 50x | 18.3 | 0.40 | 0.8 | 1.7 | 4 | VIS |
| VIS M Plan Apochromat M.PlanAPO20XS  | 20x | 20.0 | 0.42 | 0.8 | 1.7 (czy 1.5) | 10 | VIS |
| VIS M Plan Apochromat M.PlanAPO10XS  | 10x | 38.9 | 0.23 | 1.5 | 5.2 | 20 | VIS |
| VIS M Plan Apochromat M.PlanAPO5XSBS  | 5x | 36.1 | 0.16 | 2.1 | 10.7 | 40 | VIS |
| VIS M Plan Apochromat High Resolution M.PlanAPO1.5HR | 1.5x | 25 | 0.048 | 7.4 | 119.3 | 133,38 | 450-679 |
| VIS M Plan Apochromat / M Plan Apochromat High Resolution M.PlanAPO2.5XHR  | 2.5x | 33 | 0.08 | 4.2 | 42.9 | 80 | 450-680 |
| VIS M Plan Apochromat High Resolution M.PlanAPO5XHR  | 5x | 34 | 0.16 | 2.1 | 10.7 | 40 | 450-680 |
| Infinity M Plan M-Plan-40x-LCD11  | 40x | 10.3 | 0.52 | 0.3 | 1 | 4,49 | |
| Infinity M Plan M-Plan-20x-LCD11  | 20x | 10.5 | 0.42 | 0.4 | 1.6 | 8,99 | |
| Infinity M Plan M-Plan-10x-LCD11  | 10x | 10.8 | 0.25 | 0.7 | 1 | 18 | |
| NUV Plan Apochromat NUV PlanAPO 50X  | 50x | 10.0 | 0.5 | 0.6 | 1.1 | 4 | 355-1064 |
| NUV Plan Apochromat NUV Plan APO 20X  | 20x | 12 | 0.5 | 0.6 | 1.1 | 10 | 355-1064 |
| DUV Plan Apochromat DUV-PlanAPO-50x  | 50x | 12.2 | 0.40 | 0.84 | 1.7 | 4 | 266-532 |
| DUV Plan Apochromat DUV-PlanAPO-20x  | 20x | 15.5 | 0.36 | 0.93 | 2.1 | 10 | 266-532 |
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