Olympus LCPlan N 50X IR Objective | 0.65 NA Near-Infrared, Infinity Corrected

The Olympus LCPLN50XIR 50× NIR Objective is a specialized microscope objective designed for advanced imaging that spans both the visible and near-infrared (NIR) spectral range (700–1600 nm). This makes it an excellent choice for applications that require high transmission and detailed contrast beyond the visible spectrum, such as near-IR microscopy and industrial inspection workflows where subsurface features must be observed.

With 50× magnification and a numerical aperture (NA) of 0.65, this objective strikes an effective balance between resolution and light gathering capability. The Plan Achromat optical design minimizes chromatic and spherical aberrations, delivering consistently clear images with high contrast from center to edge — whether imaging brightfield, IR, or multi-modal techniques.

A key feature of this objective is its long working distance (approximately 4.5 mm), which reduces the risk of specimen or substrate damage and provides extra space for thicker samples, sample holders, or inspection tools. This is particularly important in industrial microscopy, materials science, and semiconductor inspection applications.

The standard RMS threaded mount ensures compatibility with a wide range of upright research microscope systems used in laboratories and inspection suites around the world.

Why Use IR Objectives Instead of Standard Objectives?

Standard microscope objectives are optimized for visible light and perform poorly in near-infrared applications.

Olympus IR objectives:

Deliver higher transmission in NIR wavelengths
Improve contrast in silicon and semiconductor materials
Enable imaging beneath surfaces not visible with standard optics
This makes them essential for inspection, electronics, and advanced materials analysis