Low Distortion Lens – D301317307520F

D301317307520F is Low-distortion 2-Megapixel wide-angle CCTV lens with Built-In IR Filter, 1/7.3″ Φ3.0mm mount 82.5°(D) F2.0 lens for surveillance applications.

1.3mm 2MP Low Distortion Miniature Industrial Machine Vision Lens

This 1.3mm low distortion miniature industrial lens is designed for compact 1920 × 1080 imaging systems with a 1/7.3″ sensor and 1.116μm pixel size. It provides an 82.5° diagonal field of view with less than 1% TV distortion, F2.0 aperture, a Φ3.0mm mount, and an ultra-compact 1.95mm TTL, making it suitable for embedded machine vision and space-constrained imaging applications.

Low Distortion Miniature Lens Core Highlights

• 1.3mm ultra-compact focal length provides broad scene coverage for miniature imaging modules.
• 2MP resolution is optimized for 1920 × 1080 compact camera applications.
• Less than 1% TV distortion provides controlled image geometry despite the short focal length.
• F2.0 aperture supports efficient light transmission in compact embedded camera systems.
• 1.95mm TTL and 6.22 × 2.95mm holder enable integration where optical and mechanical space is extremely limited.

1.3mm Low Distortion Miniature Lens Applications

Core Application Scenes

This lens is designed for imaging systems where both optical performance and physical dimensions are tightly constrained. Its 1.3mm focal length provides broad coverage while the <1% distortion specification helps maintain controlled image geometry.

Designed for miniature embedded vision application.

Typical applications include:

• Compact Machine Vision: Suitable for miniature inspection devices where conventional industrial lenses cannot fit.
• Embedded Vision Modules: The 1.95mm TTL and compact holder support integration into extremely small camera assemblies.
• Miniature Inspection Cameras: Suitable for applications requiring 1920 × 1080 imaging from a restricted installation space.
• Robotics Vision: The 82.5° diagonal FOV can provide useful scene coverage for compact robotic camera modules.
• AI Embedded Cameras: Suitable for small AI camera modules requiring 2MP image capture and controlled distortion.
• Industrial Monitoring: Can be integrated into compact monitoring equipment where lens dimensions are a major design constraint.
• OEM Camera Development: The Φ3.0mm mount allows the lens to be incorporated into customized miniature imaging products.

For applications where sensor size and lens coverage need to be evaluated, the Sensor Guide can help with optical compatibility.

Compatible Device List

This miniature lens can be integrated into:

• Miniature industrial cameras
• Embedded vision modules
• Compact machine vision cameras
• 1920 × 1080 camera modules
• Miniature inspection equipment
• Robotic camera modules
• Embedded AI vision systems
• Customized OEM camera assemblies
• Space-constrained monitoring devices

For broader industrial imaging requirements, explore TOWIN’s Machine Vision Solution.

Ultra-Compact Optical Design

One of the key advantages of this lens is its extremely compact optical package. The 1.95mm total track length makes it suitable for camera designs where conventional M12, M9, or larger optical assemblies cannot be accommodated.

The holder measures only 6.22 × 2.95mm, further supporting integration into miniature camera modules.

The short 1.3mm focal length provides an 82.5° diagonal, 75° horizontal, and 46° vertical FOV on the specified 1/7.3″ sensor.

Despite the short focal length, the lens maintains less than 1% TV distortion, making it different from a conventional fisheye optical design.

For applications where field of view must be calculated based on sensor dimensions and installation distance, the FOV Calculator can be used during lens selection.

Low Distortion Performance in a Miniature Lens

Short focal length lenses commonly require aggressive optical projection to achieve broad coverage. This can result in significant barrel distortion.

This lens instead specifies <1% TV distortion, providing a controlled optical image suitable for applications where geometric consistency is important.

Potential uses include:

• Compact inspection
• Object recognition
• Embedded measurement
• Machine vision positioning
• AI image processing
• Robotic perception
• Industrial monitoring

For more information about the role of distortion in machine vision, see the Distortion Guide.

CRA and Sensor Compatibility

The specified C.R.A. of <36.2° and R.I. >29% are important optical characteristics when integrating the lens with miniature image sensors.

For very small pixels and compact sensors, optical matching between the lens and sensor can influence illumination uniformity and image quality. Therefore, the specified sensor format and pixel dimensions should be considered when designing a complete camera module.

For additional guidance on optical parameters and sensor matching, refer to TOWIN’s Optical Design resources.

Frequently Asked Questions

Q: What sensor is this 1.3mm lens designed for?
A: The lens is specified for a 1/7.3″ sensor with 1920 × 1080 resolution and 1.116μm × 1.116μm pixel size.

Q: What is the field of view of this lens?
A: The specified FOV is 82.5° diagonal, 75° horizontal, and 46° vertical on the stated 1/7.3″ sensor configuration.

Q: Is this a fisheye lens?
A: No. Although the 1.3mm focal length provides a relatively broad 82.5° diagonal FOV, the TV distortion is specified at less than 1%, so it is better classified as a low-distortion fixed focal lens.

Q: What is the resolution of this miniature lens?
A: The lens is specified at 2MP resolution and is designed for 1920 × 1080 imaging systems.

Q: What is the advantage of the 1.95mm TTL?
A: The 1.95mm total track length allows the lens to be integrated into extremely compact camera modules where optical installation depth is severely limited.

Q: What does the Φ3.0mm mount mean?
A: The lens uses a Φ3.0mm mechanical mount rather than an M12, M9, or M8 interface. This compact mount is suitable for customized miniature camera assemblies.

Q: What is the purpose of the IRCF?
A: IRCF refers to an infrared cut filter configuration designed to control infrared wavelengths in visible-light imaging systems. It helps support appropriate spectral response for the intended camera module.

Q: Why are CRA and pixel size important for this lens?
A: The C.R.A. and pixel size are relevant to optical matching between the lens and a miniature image sensor. Proper matching can help maintain illumination and image quality across the sensor.

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