Olympus 20X WLI Objective

Product Details Combines High Numerical Aperture and Broad Field of View Thermal Compensation & Stability Features Suitable for 3D Surface Metrology and Profilometry Olympus WLI Infinity Corrected Interferometry Objectives’ advanced optical design combines a high numerical aperture with a broad field of view, capturing fine surface details across large areas for visual clarity. Each objective features a built-in adjustment ring that compensates for temperature-induced focused shifts, allowing stability and consistent measurement accuracy even under unstable environmental conditions. These objectives are designed to be used with a 180mm focal length tube lens and are available in magnification of 10 – 50X. Olympus WLI Infinity Corrected Interferometry Objectives are ideal for 3D surface metrology and profilometry applications, including semiconductor inspection, precision machining, optical coating evaluation, and microelectronic characterization. Specifications General Model Number: WLI20XMRTC Compatible Tube Lens Focal Length (mm): Focal Length: 180mm Type: Microscope Objective Style: Infinity Corrected Manufacturer: Olympus Note: Designed to be used with a 180mm Tube Lens, Sold Separately Physical & Mechanical Properties Field of View (mm): 1.1 Length excluding Threads (mm): 44.00 Maximum Diameter (mm): 29.8 Optical Properties Focal Length FL (mm): 9.00 Magnification: 20X Numerical Aperture NA: 0.60 Resolving Power (μm): 0.56 Depth of Field (μm): 0.76 Working Distance (mm): 1 Field Number (mm): 22 Parfocal Length (mm): 45 Depth of Focus (μm): 305.6 Entrance Pupil Diameter (mm): 10.80 Threading & Mounting Mounting Threads: RMS / 20.32mm x 36 TPI Regulatory Compliance RoHS 2015: Exempt × Certificate of Conformance: View ×