Mitutoyo 378-892-8 LCD Plan UV 20X(t0.7) Objective for bright-field observation in ultraviolet range with cover glass compensation

The LCD Plan UV 20X (t0.7) is a precision objective lens developed for bright field inspection and laser applications through 0.7 mm LCD (SiO₂) cover glass. Designed with a high-quality plan optical system, this objective is specifically corrected for both ultraviolet (266 nm) and visible (550 nm) wavelengths, ensuring accurate and reliable imaging in UV-sensitive applications.

With a long working distance of 15.2 mm through 0.7 mm glass, the lens provides excellent clearance while maintaining sharp, stable imaging performance. Its infinity-corrected design and dedicated glass thickness compensation optimise image quality when observing through LCD substrates or similar materials.

The LCD Plan UV 20X is well suited for precision inspection, UV laser processing observation, and advanced analytical applications requiring dual-wavelength optimisation.

Key Features

Suitable for bright field inspection and laser applications

Optimised for imaging through 0.7 mm LCD (SiO₂) cover glass

Long working distance design

High-quality plan optical design

Corrected for 266 nm (UV) and 550 nm (visible) wavelengths

Glass thickness compensated

Specifications

Model: LCD Plan UV 20X (t0.7)

Magnification: 20x

Glass thickness correction: t0.7 mm SiO₂

Working distance (through glass): 15.2 mm

Working distance (in air): 14.98 mm

Numerical Aperture (N.A.): 0.37

Infinity corrected: Yes

Resolving power: 0.8 µm

Depth of focus: 2.1 µm

Field of view (ø24 mm eyepiece): ø1.2 mm

Field of view (1/2” camera chip): 0.24 × 0.32 mm

Parfocal distance (P.D.): 95 mm

Spectral range: UV

Observation mode: Brightfield

Glass compensation: Yes

Laser applications: Yes

Mass: 370 g