Mitutoyo LCD Plan Apo NIR 50x Objective t0.7 (NA 0.42, WD 17mm, 480–1800nm, M26)
Regular price
$5,800.00
The Mitutoyo LCD Plan Apo NIR 50× Objective (t0.7) 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 0.7mm thick cover glass or flat panel substrate. The t0.7 designation indicates this objective is corrected for the standard 0.7mm glass thickness used in LCD and flat panel display substrates, making it the definitive choice for high-magnification NIR/SWIR inspection of LCD panels, OLED displays, and other flat panel devices through their standard glass substrates.
KEY FEATURES
- Corrected for 0.7mm cover glass (t0.7) — specifically optimized for the standard 0.7mm glass substrate thickness used in LCD panels, OLED displays, and flat panel devices; eliminates the spherical aberration introduced by the glass layer that would degrade image quality with standard (non-cover-glass-corrected) objectives
- NIR/SWIR spectral range: 480–1800nm — transmission extending to 1800nm enables high-magnification LCD panel inspection at NIR wavelengths, InGaAs camera imaging through panel glass, 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
- 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 0.7mm 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 378-829-16
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Technical Specifications
| Catalog Number | 378-829-16 |
| 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 | t0.7 — corrected for 0.7mm cover glass (LCD/flat panel standard) |
| Optical Design | LCD Plan Apo NIR (Plan Apochromat, 0.7mm 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 | 378-829-16 |
Microscope Compatibility
Typical Applications
High-magnification LCD and flat panel display inspection at NIR/SWIR wavelengths through 0.7mm glass substrates
OLED display defect inspection and pixel-level analysis through standard panel glass
InGaAs camera imaging through 0.7mm panel glass requiring SWIR transmission to 1800nm
Raman spectroscopy mapping through panel glass with NIR/SWIR excitation lasers at 50×
Backplane and electrode structure inspection at NIR wavelengths through flat panel substrates
Any high-magnification NIR/SWIR application requiring correction for 0.7mm cover glass thickness
