Mitutoyo LCD Plan Apo NIR 50x Objective t1.1 (NA 0.42, WD 17mm, 480–1800nm, M26)
Regular price
$4,500.00
The Mitutoyo LCD Plan Apo NIR 50× Objective (t1.1) is a specialized near-infrared and SWIR optimized plan apochromat objective from Mitutoyo’s LCD Plan Apo NIR series — delivering 50× magnification with a 17mm working distance, 480–1800nm spectral range, and optical correction specifically designed for imaging through a 1.1mm thick cover glass or flat panel substrate. The t1.1 designation indicates this objective is corrected for the 1.1mm glass thickness used in older LCD panel substrates, certain semiconductor packaging, and other applications where a thicker glass layer is present between the objective and the specimen.
KEY FEATURES
- Corrected for 1.1mm cover glass (t1.1) — specifically optimized for 1.1mm glass substrate thickness, used in older LCD panel glass, certain semiconductor packaging substrates, and other flat panel applications; eliminates the spherical aberration introduced by the thicker glass layer that would degrade image quality with standard or t0.7-corrected objectives
- NIR/SWIR spectral range: 480–1800nm — transmission extending to 1800nm enables high-magnification inspection at NIR wavelengths through the 1.1mm glass layer, InGaAs camera imaging, SWIR fluorescence, and Raman spectroscopy with long-wavelength excitation lasers
- Long working distance: 17mm — exceptional clearance for a 50× objective, providing ample room for large panel specimens, inspection fixtures, and environmental control hardware
- NA 0.42 at 50× — practical numerical aperture for a long working distance NIR/SWIR objective, delivering good resolution for high-magnification panel defect inspection, pixel-level analysis, and Raman mapping through the 1.1mm glass layer
- Plan apochromat correction — Mitutoyo’s highest level of chromatic and spherical aberration correction for accurate, flat-field imaging across the full 480–1800nm spectral range through the 1.1mm glass layer
- Infinity-corrected, M26 thread — compatible with Mitutoyo FS series microscopes and other infinity-corrected systems with M26 nosepieces
- 🇯🇵 Mitutoyo quality, made in Japan — precision optical construction for consistent, high-efficiency NIR/SWIR transmission and long service life
- Catalog number 378-828-16
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Technical Specifications
| Catalog Number | 378-828-16 |
| Magnification | 50× |
| Numerical Aperture (NA) | 0.42 |
| Immersion Medium | Dry (air) |
| Working Distance | 17mm (Long Working Distance) |
| Spectral Range | 480–1800nm (NIR + SWIR) |
| Cover Glass Correction | t1.1 — corrected for 1.1mm cover glass |
| Optical Design | LCD Plan Apo NIR (Plan Apochromat, 1.1mm cover glass corrected, NIR/SWIR) |
| Correction | Infinity-corrected (brightfield) |
| Thread / Mount | M26 |
| Compatible Systems | Mitutoyo FS series; other infinity-corrected M26 systems |
| Country of Origin | Japan |
| SKU | 378-828-16 |
Microscope Compatibility
Typical Applications
High-magnification LCD panel inspection through 1.1mm glass substrates at NIR/SWIR wavelengths
Older-generation flat panel display defect inspection and pixel-level analysis
Semiconductor packaging inspection through 1.1mm encapsulant or glass layers
InGaAs camera imaging through 1.1mm glass requiring SWIR transmission to 1800nm
Raman spectroscopy mapping through 1.1mm glass with NIR/SWIR excitation lasers at 50×
Any NIR/SWIR application at 50× requiring correction specifically for 1.1mm cover glass thickness
