Low Distortion Lens – M300611108824F

M300611108824F is Low Distortion Wide-angle CCTV lens with IR capability, M3.5×0.2 mount, 115°(D) field of view, and F2.4 aperture, for compact surveillance applications.

0.65mm M3.5 Low Distortion Wide Angle Miniature Lens

This 0.65mm M3.5 low distortion wide angle lens is designed for compact QVGA imaging modules, delivering an ultra-wide 115° diagonal field of view with TV distortion below 4.2%. Its 2.8mm total track length, F2.4 aperture, and compact M3.5 × 0.2 mount make it suitable for miniature embedded cameras, compact machine vision modules, and space-constrained visual sensing systems.

M3.5 Low Distortion Lens Core Highlights

• <4.2% Low Distortion: Controls image deformation while maintaining an ultra-wide viewing angle.
• 115° Diagonal FOV: Covers a broad scene with a 0.65mm ultra-short focal length.
• 88° Horizontal & Vertical FOV: Provides extensive coverage for compact visual sensing modules.
• 2.8mm T.T.L.: Supports integration into highly space-constrained camera assemblies.
• Compact M3.5 × 0.2 Mount: Designed for miniature embedded imaging equipment.

0.65mm M3.5 Low Distortion Lens Applications

Core Application Scenes

This 0.65mm low distortion wide angle lens is designed for miniature camera systems that need to capture a broad scene while maintaining controlled geometric distortion. Its 115° diagonal FOV and 88° horizontal and vertical FOV allow a compact imaging module to cover a large viewing area without relying on a conventional large optical assembly.

The lens is particularly suitable for applications where the camera must observe a wide surrounding area from a restricted installation position. Its <4.2% TV distortion specification provides a more controlled image geometry than highly distorted ultra-wide or fisheye designs, making it a practical option when wide coverage and image shape both matter.

With a 0.65mm focal length and only 2.8mm total track length, the lens is optimized for highly compact camera architectures. It can be integrated into embedded visual sensing modules, miniature inspection cameras, compact robotic sensors, and other devices where the optical assembly must occupy minimal mechanical space.

For compact machine vision systems, the lens can provide a broad visual field for scene monitoring, object presence detection, and short-range visual sensing. Its wide viewing geometry can also be useful in robotic systems where the camera needs to observe a larger area without increasing the physical size of the imaging module.

Designed for low-distortion ultra-wide-angle embedded vision and compact visual sensing applications.

Compatible Device List

• QVGA Camera Modules: Designed for compact QVGA imaging systems using a maximum image circle of approximately Φ1.8mm.
• Embedded Vision Devices: The 2.8mm T.T.L. makes the lens suitable for thin and space-constrained camera modules.
• Miniature Machine Vision Cameras: Suitable for compact vision modules requiring broad scene coverage and controlled image distortion.
• Robotic Vision Sensors: The ultra-wide field of view can help small robotic cameras monitor a large surrounding area.
• Compact Monitoring Modules: Suitable for embedded monitoring equipment where a small camera must achieve extensive visual coverage.
• OEM Imaging Systems: The M3.5 × 0.2 mounting interface can be incorporated into customized miniature camera assemblies.

Wide-Angle Low-Distortion Performance

The key characteristic of this lens is the combination of 115° diagonal FOV and less than 4.2% TV distortion. This combination allows the camera to capture a very broad scene while keeping geometric deformation relatively controlled.

The lens therefore occupies a different position from a conventional fisheye lens. Rather than maximizing field of view through strong intentional image deformation, this design focuses on achieving broad coverage while maintaining a lower-distortion image.

Engineers evaluating the relationship between sensor dimensions, focal length, and field coverage can use the FOV Calculator to estimate the required viewing area for a specific camera installation.

For additional information about distortion characteristics and their influence on imaging performance, see the Distortion Guide.

Compact Mechanical Integration

The lens has a 2.8mm total track length and an M3.5 × 0.2 mount, making it suitable for miniature camera architectures where conventional M12 or larger optical interfaces are impractical.

Its 3P + IR optical structure provides a compact multi-element optical configuration. The specified C.R.A. below 30° is another parameter that should be considered when matching the lens with the selected image sensor and camera module.

For engineers developing a custom miniature camera, the optical and mechanical requirements can be reviewed together with the Lens Selection Guide before finalizing the camera architecture.

Frequently Asked Questions

Q: What is the field of view of this 0.65mm lens?
A: When tested with the specified HM01B configuration, the lens provides a 115° diagonal FOV, 88° horizontal FOV, and 88° vertical FOV.

Q: Is this a low distortion lens?
A: Yes. The lens is designed as a low distortion wide-angle lens, with TV distortion specified at less than 4.2%.

Q: Is this lens a fisheye lens?
A: It is not recommended to classify this lens as a fisheye lens based only on its 115° diagonal FOV. Its relatively controlled <4.2% TV distortion is more consistent with a low distortion wide-angle design.

Q: What is the focal length of the lens?
A: The focal length is 0.65mm, providing a very wide field of view for the specified compact image sensor configuration.

Q: What mount does this lens use?
A: The lens uses an M3.5 × 0.2 mount, designed for miniature camera modules and compact embedded imaging systems.

Q: How compact is the optical assembly?
A: The total track length is 2.8mm, making the lens suitable for camera designs where the available optical installation depth is severely restricted.

Q: What resolution is this lens designed for?
A: The specified resolution is QVGA, making it suitable for compact imaging applications where QVGA image output meets the system requirements.

Q: What applications are suitable for this wide-angle lens?
A: It is suitable for miniature embedded cameras, compact machine vision modules, robotic visual sensors, short-range monitoring systems, and OEM imaging devices requiring a broad field of view with controlled distortion. For customized optical integration, engineers can contact Towin Optical.

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