Kowa EC-IR Machine Vision Lenses designed for 1.2-Inch Sensors deliver outstanding performance

Compact C-Mount Machine Vision Lenses Provide 24 MP Performance with Low Distortion

The Kowa EC-IR Machine Vision lenses are developed for 1.2-inch sensors but are also compatible with all smaller sensor formats. With a resolution of 24 MP and IR correction for both day and night use, the lenses provide consistent optical performance in varying environments. The series is intended for applications in traffic monitoring, license plate recognition, machine vision, and geo-mapping and any other applications where there is a need for sharp focus regardless of the wavelength of light used between 400nm to 1000nm.

The Kowa EC-IR series are designed with a combination of low dispersion and high dispersion glass to combat chromatic aberration and can be described as apo-achromat lenses. The combination of glass types allows the lens to focus all wavelengths of light at the same back-focus distance, providing sharp focus across the full visible and NIR spectra. 

The Kowa EC-IR Series is a family that consists of four machine vision lenses:

• LM16EC-IR | 1.2" 16mm F2.4 C-mount
• LM25EC-IR | 1.2" 25mm F2.4 C-mount
• LM35EC-IR | 1.2" 35mm F2.4 C-mount
• LM50EC-IR | 1.2" 50mm F2.4 C-mount

Each of the above Kowa EC-IR machine vision lenses deliver 200 lp/mm resolution in the image centre and 125 lp/mm in the corners of a 1.2” sensor. When used with smaller sensors the resolution is higher in the corners of the sensor. The series is built with a C-mount for easy integration. They support clear focus at long working distances, come with a fixed aperture but include interchangeable aperture plates for aperture adjustments.

Key specifications include:

• Sensor compatibility: 1.2-inch
• Focal lengths: 16mm, 25mm, 35mm, 50mm
• F-numbers: F2.4
• Distortion 1% or lower
• Filter Thread available
• Two way reversible nut to tightly lock the focus adjustment ring
• Temperature range: -10 °C to +50 °C
• Wavelength range: IR-corrected (day and night)

These machine vision lenses are compact and lightweight, with weights between 70g and 95g depending on focal length, and provide low distortion levels suitable for the intended application fields.

LM16EC-IR | 1.2" 16mm F2.4 C-mount drawing

LM35EC-IR | 1.2" 35mm F2.4 C-mount drawing

LM50EC-IR | 1.2" 50mm F2.4 C-mount drawing