Low Distortion Lens – M502315006522

M502315006522 is Low distortion wide angle CCTV lens with 1/5″ format, 2.3mm focal length, 76° diagonal FOV, F2.2 aperture, for high-quality security imaging.

2.3mm M5 Miniature Low Distortion Wide Angle Lens

This 2.3mm M5 miniature low distortion lens is designed for 1/5″ image sensors, delivering a 76° diagonal field of view with less than 1.5% TV distortion. With a compact 3.92mm total track length, 0.65mm back focal length, and fixed F2.2 aperture, it provides a practical optical solution for compact machine vision and embedded imaging systems.

M5 Low Distortion Lens Core Highlights

• 76° diagonal wide-angle FOV provides broad scene coverage from a compact 2.3mm focal length.
• <1.5% TV distortion helps maintain controlled image geometry for inspection and vision applications.
• 2MP resolution is suitable for compact 1/5″ sensor-based imaging systems.
• 3.92mm T.T.L. and 0.65mm M.B.F.L. support compact camera and embedded optical designs.
• ≥40% relative illumination helps maintain useful brightness across the image field.

2.3mm M5 Low Distortion Lens Applications

Compact Machine Vision

The 2.3mm focal length provides a wide viewing angle while the <1.5% TV distortion keeps geometric deformation controlled. This makes the lens suitable for compact machine vision systems where the camera needs to cover a relatively broad area without the stronger distortion associated with fisheye optics.

Typical applications include:

• Compact inspection cameras
• Embedded machine vision modules
• Small-part inspection systems
• Automated equipment monitoring
• Compact robotic vision systems
• Edge AI camera modules
• Industrial sensing devices

Designed for compact machine vision applications requiring a wide field of view with controlled geometric distortion.

For application-specific industrial imaging, explore TOWIN’s Machine Vision solutions.

Low Distortion Wide-Angle Imaging

The combination of 76° diagonal FOV and less than 1.5% TV distortion gives this lens a useful balance between scene coverage and image geometry.

It can be considered for applications involving:

• Object positioning
• Visual inspection
• Edge detection
• Pattern recognition
• Component alignment
• Compact measurement systems

When selecting a lens for geometry-sensitive applications, TOWIN’s Distortion Guide provides additional information about how lens distortion affects captured images.

This model can also be evaluated alongside other products in the Low Distortion Lens collection.

Miniature Embedded Camera Modules

The M5.0×0.2 mount, 3.92mm T.T.L., and 0.65mm M.B.F.L. allow the lens to be integrated into small camera assemblies where both mounting dimensions and optical length are limited.

Potential compatible devices include:

• Miniature industrial cameras
• Embedded inspection cameras
• Compact AI vision modules
• Small robotic cameras
• OEM camera modules
• Electronic equipment monitoring cameras
• Compact imaging sensors

The lens is designed around a 1/5″ image format. When developing a complete camera assembly, engineers should verify the active sensor area and optical compatibility using TOWIN’s Sensor Guide.

Wide-Area Industrial Imaging

The 65° horizontal and 50° vertical FOV provides useful coverage for compact industrial equipment and close-to-medium-range imaging. Compared with extremely wide fisheye optics, its controlled distortion makes it better suited to applications where recognizable image geometry is important.

The fixed F2.2 aperture also provides a straightforward optical configuration without requiring an adjustable iris mechanism.

Frequently Asked Questions

Q: What sensor size is this 2.3mm M5 lens designed for?
A: The lens is designed for 1/5″ image sensors, with a 76° diagonal, 65° horizontal, and 50° vertical field of view.

Q: Is this 2.3mm lens a fisheye lens?
A: No. Although the lens provides a relatively wide field of view, its TV distortion is less than 1.5%, making it more appropriate for the low distortion wide-angle category.

Q: What is the main advantage of the <1.5% distortion specification?
A: It helps keep image geometry more controlled, which is beneficial for machine vision tasks such as inspection, positioning, alignment, and pattern recognition.

Q: What does the 76° diagonal FOV mean in practical use?
A: The 76° diagonal field of view allows the camera to capture a relatively broad scene while retaining a more controlled optical geometry than an extreme fisheye design.

Q: What is the total track length of the lens?
A: The T.T.L. is 3.92mm, making the lens suitable for compact camera modules and space-constrained imaging equipment.

Q: What is the back focal length of this lens?
A: The specified M.B.F.L. is 0.65mm, indicating a very short optical back focal distance suitable for miniature camera architectures.

Q: Is the aperture adjustable?
A: No. The lens uses a fixed F2.2 aperture, providing a consistent optical configuration for compact embedded imaging systems.

Q: What is the relative illumination of this lens?
A: The specified relative illumination is ≥40%, helping maintain useful image brightness toward the outer portion of the image field.

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