High Precision Optical Achromatic Doublet Lens with AR Coating for Microscopes

High Precision Optical Achromatic Doublet Lens with AR Coating for Microscopes

1. Material Composition:

• Achromatic Doublet Design: Precisely bonded elements using crown glass (e.g., N-BK7) and flint glass (e.g., F2) to eliminate chromatic aberration.

• Multi-Layer AR Coating: Ion-beam sputtered anti-reflective coatings optimized for visible spectrum (400-700nm) with >99.5% peak transmission.

2. Key Properties:

• Chromatic Aberration Correction: Reduces axial and lateral color fringing to ensure true-color imaging.

• High Wavefront Accuracy: λ/4 surface precision and <30 nm RMS wavefront error for diffraction-limited performance.

• Thermal Stability: Near-zero thermal shift (-30°C to 80°C operational range) due to matched CTE glass pairing.

• Scratch/Dig Standard: 10-5 surface quality with laser-grade polishing for minimal light scatter.

3. Core Functions:

• Color Fidelity Enhancement: Corrects multi-wavelength focus shifts for accurate sample reproduction.

• Contrast Optimization: AR coatings minimize reflections to boost image contrast in high-magnification systems.

• Long Working Distance: Enables focus stability in complex optical paths (e.g., objective lenses, tube lenses).

4. Applications:

• Research Microscopy: Fluorescence, confocal, and phase-contrast microscopy requiring color accuracy.

• Medical Diagnostics: Pathology lab microscopes and digital slide scanning systems.

• Industrial Inspection: Semiconductor metrology, PCB analysis, and material science imaging.

• Life Sciences: Cell culture monitoring and histology sample examination.