Kowa LM1.7QS56 | 1/2.5" 1.7mm S-Mount Fixed Lens, 160 lp/mm, f/5.6, -0.32% Distortion, Machine Vision, 100 lp/mm Edge

The Kowa LM1.7QS56 is a high-resolution S-Mount fixed focal lens engineered for precision imaging in machine vision and embedded vision applications. With a 1.7mm focal length and support for 1/2.5" sensors, this compact lens delivers exceptional clarity at up to 160 line pairs per millimeter (lp/mm) in the center and 100 lp/mm at the edge. It maintains a low TV distortion rate of just -0.32%, making it well-suited for dimensional measurement, barcode scanning, and alignment tasks where accuracy is critical.

Optimized for use in industrial vision systems, the LM1.7QS56 has a working focus range from 0.1 meters to infinity, a back focus of 4.0mm in air, and a standard aperture of f/5.6. Its robust operating temperature range of -10°C to +50°C enables reliable performance in a variety of production environments. Custom options are available including F-stop adjustments, IR-cut filters, and internal lens element gluing for enhanced shock resistance. The LM1.7QS56 is part of Kowa’s LM-Q series and is ideal for lightweight camera systems where compact size and high optical performance are both required.

Features:

• 1.7mm fixed focal length
• S-Mount (M12) compact design
• Supports 1/2.5" image sensors
• f/5.6 aperture
• 160 lp/mm center resolution
• 100 lp/mm edge resolution
• Low TV distortion: -0.32%
• 0.1m to ∞ focus range
• Back focus: 4.0mm in air
• Operating temperature: -10°C to +50°C
• Customizable F-stop and IR cut filter options
• Optional internal lens gluing for anti-vibration

Applications:

• Compact and embedded machine vision systems
• Industrial imaging in constrained spaces
• Robotic vision and automation
• Optical inspection and quality control
• Barcode and pattern recognition
• Lightweight camera modules
• Environmental sensors and mobile devices