Low Distortion Lens – M201319007020F

M201319007020F is Low distortion wide angle CCTV lens with Built-In IR Filter, 77° 1/9″ M2.6X0.1 mount, F2.0 aperture, for compact surveillance applications.

1.3mm M2.6 Low Distortion Miniature Wide Angle Lens

This 1.3mm M2.6 low distortion miniature lens is designed for 1/9″ sensors, combining a 70° horizontal field of view with less than 1% TV distortion in an extremely compact 1.8mm total track length. Its F2.0 aperture, 3P + IRCF optical structure, and 4.6 × 2.9mm holder make it well suited to compact embedded cameras, miniature machine vision modules, and space-constrained imaging systems.

M2.6 Low Distortion Miniature Lens Core Highlights

• <1% Low Distortion: Maintains highly accurate image geometry for compact vision systems.
• Ultra-Short 1.8mm T.T.L.: Enables integration into extremely thin camera modules.
• 1.3mm Wide-Angle Optics: Delivers 70° horizontal FOV from a miniature optical package.
• F2.0 Aperture: Provides a relatively bright optical configuration for compact imaging devices.
• 4.6 × 2.9mm Holder: Supports highly space-constrained embedded camera designs.

1.3mm M2.6 Low Distortion Miniature Lens Applications

Core Application Scenes

This 1.3mm low distortion miniature lens is designed for compact imaging systems where both optical accuracy and mechanical size are critical. Its combination of less than 1% TV distortion, a 70° horizontal FOV, and only 1.8mm total track length makes it particularly suitable for camera modules that require broad scene coverage without introducing significant geometric deformation.

Unlike conventional wide-angle miniature lenses that may introduce substantial barrel distortion, this lens is optimized for applications where straight-line preservation and image geometry are important. It suits compact inspection cameras, embedded visual sensing modules, miniature robotic cameras, and other space‑constrained imaging equipment.

The lens is especially suitable for 1/9″ 1280 × 720 camera modules using 1.4μm × 1.4μm pixels. Its compact M2.6 × 0.1 mounting interface and 4.6 × 2.9mm holder allow optical engineers to integrate it into camera assemblies where conventional M12 or larger lens systems would occupy too much space.

For compact automation equipment, the lens can support close-range visual sensing and inspection where maintaining image geometry is more important than achieving an extremely wide panoramic field. It can also be integrated into miniature robotic vision modules where the camera must fit within a restricted mechanical envelope.

For engineers developing embedded vision products, the lens can complement machine vision systems that require compact optical assemblies and controlled distortion. Its low-distortion characteristics can also be useful when image coordinates need to remain relatively consistent for subsequent vision processing.

Designed for low-distortion miniature machine vision and embedded imaging applications.

Compatible Device List

• 1/9″ Camera Modules: Optimized for 1/9″ sensors with a maximum image circle of Φ2.37mm and 1280 × 720 resolution.
• Compact Embedded Cameras: The 1.8mm T.T.L. and 4.6 × 2.9mm holder are suitable for thin camera assemblies with severe space restrictions.
• Miniature Machine Vision Modules: The <1% TV distortion specification supports vision systems where image geometry needs to remain controlled.
• Robotic Vision Modules: The compact optical structure can be integrated into small robotic sensors and embedded visual perception units.
• OEM Camera Assemblies: The M2.6 × 0.1 mount provides a compact mechanical interface for customized imaging equipment.

Low-Distortion Imaging Advantage

The most distinctive optical characteristic of this lens is its TV distortion below 1%. For a wide-angle miniature lens, this level of distortion control can help reduce geometric deformation across the image and provide more consistent visual information for downstream image processing.

This characteristic is useful when a compact camera needs to observe a relatively broad scene while maintaining a more natural representation of straight edges. Engineers evaluating field coverage can use the FOV Calculator to estimate how sensor dimensions and focal length affect the final viewing area.

For projects where lens selection involves sensor format, field of view, resolution, distortion, and mechanical dimensions, the Lens Selection Guide provides additional optical selection considerations.

Compact Optical Integration

With a 1.8mm T.T.L. and 4.6 × 2.9mm holder, this lens is designed around extremely compact camera architecture. Such dimensions are useful when the available space behind the camera window is limited and the optical assembly must be kept as thin as possible.

The 3P + IRCF structure provides a compact multi-element optical configuration with an IR-cut filter arrangement. The IRCF designation indicates IR-cut filtering and should not be interpreted as an IR-corrected optical design.

The C.R.A. below 34.1° and relative illumination above 36% are additional optical parameters that should be considered when integrating the lens with the selected image sensor and camera module.

Frequently Asked Questions

Q: What sensor is this 1.3mm lens designed for?
A: The lens is designed for a 1/9″ sensor with a maximum image circle of Φ2.37mm. The specified sensor configuration is 1280 × 720 with 1.4μm × 1.4μm pixels.

Q: What is the field of view of this miniature lens?
A: The lens provides a 77° diagonal FOV, 70° horizontal FOV, and 43° vertical FOV based on the specified sensor configuration.

Q: Is this a low distortion lens?
A: Yes. Its TV distortion is specified at less than 1%, making low geometric distortion one of its primary optical characteristics.

Q: Is this lens a fisheye lens?
A: No. The 77° diagonal FOV combined with less than 1% TV distortion does not represent a typical fisheye optical design. The lens is better classified as a low distortion wide-angle miniature lens.

Q: What mount does this lens use?
A: The lens uses an M2.6 × 0.1 mount, designed for miniature camera modules and compact embedded imaging assemblies.

Q: How compact is this lens?
A: The total track length is only 1.8mm, while the holder measures 4.6 × 2.9mm. This makes the lens suitable for camera designs with very limited optical installation space.

Q: Does the IRCF specification mean that the lens is IR corrected?
A: No. The 3P + IRCF structure indicates an IR-cut filter configuration. It does not by itself indicate that the lens is optically corrected for infrared wavelengths.

Q: What applications are suitable for this low distortion miniature lens?
A: It is suitable for compact embedded cameras, miniature machine vision modules, robotic vision systems, and OEM imaging devices where low distortion, wide viewing coverage, and very small optical dimensions are required. For customized integration requirements, engineers can contact Towin Optical.

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