Kowa LM3QS56 | 1/2.5" 3mm Fixed Lens, S-Mount, 160 lp/mm, 3.2µm Pixel, Visible to NIR (400–1000nm)

The Kowa LM3QS56 is a compact high-resolution 3mm fixed focal length S-Mount lens designed for machine vision applications using 1/2.5" sensors. Optimized for board-level systems and embedded cameras, this lens supports pixel sizes down to 3.2µm and delivers crisp detail with 160 lp/mm center resolution and 125 lp/mm at the edges. Its extremely low TV distortion of just 0.02% ensures geometrically accurate imaging critical for inspection, alignment, and automated vision tasks.

Built to perform in industrial environments, the LM3QS56 features a focus range from 0.1m to infinity, compact housing (Ø16 x 22.3mm), and lightweight form factor (6g) for seamless integration into space-constrained systems. A peak wavelength range of 400nm to 1000nm makes it ideal for both visible and near-infrared (NIR) imaging. With a reliable operating range from -10°C to +50°C, this lens supports system stability in varied conditions. Custom options include IR cut filters, aperture adjustments, and shock/vibration-resistant glued optics on request.

Features:

• 3mm fixed focal length for short-range precision
• Supports 1/2.5" sensors and 3.2µm pixels
• 160 lp/mm resolution at center, 125 lp/mm at edges
• Ultra-low 0.02% TV distortion for accurate imaging
• Peak spectral coating from 400nm to 1000nm (VIS to NIR)
• Compact and lightweight (Ø16 x 22.3mm, 6g)
• Focus range from 0.1m to ∞
• Wide operating temperature range: -10°C to +50°C
• Customizable aperture, IR cut filter, and glued optics

Applications:

• Machine vision and industrial inspection
• Board-level and embedded camera systems
• Robotic guidance and alignment
• Near-IR and visible spectrum imaging
• Medical and laboratory imaging
• Compact optical systems and automation