20mm long-distance adaptation for near-infrared transillumination of thick samples (such as silicon wafers, plant stems) with sufficient operating space; apochromatic correction for chromatic aberration in the 800-1200nm range, ensuring no color shift in near-infrared fluorescent labeling (such as Cy5.5) imaging, clearly presenting the contours of deep cells.

Applications:

Near-infrared deep imaging of living cells, internal defect inspection of silicon wafers, transillumination analysis of plant vascular bundles.