Low Distortion Lens – M501011305028F

M501011305028F is Low distortion pinhole lens with Built-In IR Filter, 1/13″ Φ2.0mm M5x0.35 mount 60°(D) 1.0mm F2.8 for general imaging applications.

1.0mm M5 Miniature Low Distortion Lens for 1/13″ Sensors

This 1.0mm M5 miniature low distortion lens is designed for ultra-compact 1/13″ image sensors, delivering a 60° diagonal field of view with less than 2% distortion. Its 3.2mm total track length, M5 × 0.35 mount, and high relative illumination of over 60% make it suitable for compact embedded imaging and miniature industrial vision modules.

M5 Miniature Low Distortion Lens Core Highlights

• <2% Low Distortion: Maintains controlled image geometry for compact imaging applications.
• 1/13″ Sensor Compatibility: Designed for extremely small image sensors with a maximum Φ2.0mm image circle.
• Ultra-Compact 3.2mm T.T.L.: Supports camera designs with very limited optical installation space.
• >60% Relative Illumination: Helps maintain useful image brightness across the sensor area.
• M5 × 0.35 Mount: Provides a compact mechanical interface for miniature OEM camera modules.

1.0mm M5 Miniature Low Distortion Lens Applications

Core Application Scenes

This 1.0mm miniature low distortion lens is designed for camera modules where extremely small optical dimensions and controlled image geometry are both important. Its compatibility with 1/13″ sensors and maximum Φ2.0mm image circle makes it particularly suitable for miniature imaging systems where conventional M12 or larger optics would be mechanically oversized.

The lens provides a 60° diagonal field of view while maintaining distortion below 2%. This combination makes it useful when the camera needs to cover a defined scene without introducing the pronounced geometric deformation associated with highly wide-angle or fisheye optics.

With a 3.2mm total track length, the lens is especially suitable for embedded camera modules installed inside compact equipment, electronic assemblies, miniature inspection devices, and space-constrained sensing systems. Its M5 × 0.35 mount further supports integration into small custom camera housings.

The C.R.A. below 4° and relative illumination above 60% are also useful characteristics for compact sensor integration. A low chief ray angle can simplify optical matching with small image sensors, while the high relative illumination helps preserve usable brightness toward the edge of the image.

Designed for ultra-compact, low-distortion embedded imaging and miniature vision applications.

Compatible Device List

• 1/13″ CMOS Camera Modules: Specifically designed for very small image sensors with a maximum Φ2.0mm image circle.
• Miniature Embedded Cameras: The 3.2mm T.T.L. enables integration into camera modules with extremely limited optical depth.
• Compact Industrial Vision Modules: Low distortion performance supports applications where image geometry needs to remain controlled.
• Miniature Inspection Devices: Suitable for compact equipment inspection and visual sensing modules requiring a small optical footprint.
• OEM Imaging Systems: The M5 × 0.35 interface can be integrated into customized camera housings and embedded vision assemblies.

For engineers evaluating sensor size, focal length, and required viewing coverage, the FOV Calculator can be used during the initial optical selection process.

For additional guidance on matching a lens with a small image sensor, the Sensor Guide provides useful information about sensor formats and optical compatibility.

Low Distortion Optical Performance

The main optical characteristic of this lens is its less-than-2% distortion. This controlled distortion makes it suitable for applications where straight edges, object positions, and image geometry need to remain relatively consistent across the captured scene.

Compared with highly distorted miniature wide-angle optics, this low distortion lens can reduce geometric deformation and may decrease the amount of correction required by downstream image-processing algorithms.

For engineers evaluating distortion in optical system design, the Distortion Guide provides additional information about how lens distortion affects image geometry and application performance.

Compact Optical Integration

The 1P + IRCF construction provides a highly compact optical configuration for miniature camera modules. Here, IRCF refers to an IR cut filter configuration and should not be interpreted as an IR-corrected optical design.

The combination of a 3.2mm T.T.L., M5 × 0.35 mount, and <4° C.R.A. makes this lens particularly suitable for optical assemblies where both mechanical dimensions and sensor matching need to be carefully controlled.

For OEM projects requiring customized mechanical dimensions, sensor matching, or application-specific optical integration, engineers can contact the Towin Lens team.

Frequently Asked Questions

Q: What sensor size is this 1.0mm lens designed for?
A: This lens is designed for 1/13″ image sensors with a maximum image circle of Φ2.0mm.

Q: Is this a low distortion lens?
A: Yes. The specified distortion is below 2%, making it suitable for compact imaging applications where controlled image geometry is important.

Q: Is this lens a fisheye lens?
A: No. Although the focal length is only 1.0mm, the specified 60° diagonal FOV and less-than-2% distortion indicate a controlled low-distortion optical design rather than a fisheye lens.

Q: What is the field of view of this lens?
A: When paired with the specified GC6153 sensor, the lens provides a 60° diagonal FOV, 50° horizontal FOV, and 38° vertical FOV.

Q: What mount does this miniature lens use?
A: The lens uses an M5 × 0.35 mount, which is designed for compact and miniature camera assemblies.

Q: How compact is the lens?
A: The total track length is only 3.2mm, making the lens suitable for camera modules with very limited optical installation space.

Q: Does the IRCF specification mean that the lens is IR corrected?
A: No. The 1P + IRCF construction indicates an IR cut filter configuration. It should not be interpreted as an IR-corrected optical design.

Q: What does the >60% relative illumination specification mean?
A: Relative illumination above 60% indicates that the lens maintains a relatively high level of image brightness toward the sensor edges, which can be beneficial for compact imaging systems.

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