Short-focus lenses, renowned for their compact design and wide field of view, have become indispensable across industries like machine vision, surveillance, and automotive imaging. These lenses excel in scenarios requiring close-range focus without compromising image clarity, making them ideal for applications where space is limited or wide-angle capture is critical.

In this article, we’ll delve into the 5 most common applications of short-focus lenses, highlighting product parameters and TOWIN’s innovative solutions tailored to each use case.

1. Machine Vision: Precision in Industrial Automation

Short-focus lenses are the backbone of industrial automation, enabling high-speed, accurate inspection in manufacturing. Their ability to focus on objects at minimal distances while maintaining sharpness makes them perfect for tasks like quality control, barcode scanning, and robotic guidance.

TOWIN’s C-Mount Lenses for Machine Vision:

Flange Focal Distance: 17.526 mm (standard for MV/FA lenses).

• Compatibility: USB, GigE, and 3D cameras.
• Key Features: Low distortion, high resolution, and compatibility with IR-corrected coatings for day/night operations.
• Applications: Automated assembly lines, PCB inspection, and packaging verification.

TOWIN’s C-Mount lenses, such as the MV-Series, offer fixed focal lengths (e.g., 8mm, 12mm) and vari-focal options with manual/DC auto-iris control. These lenses ensure consistent performance in harsh industrial environments, reducing downtime and enhancing throughput.

C-mount-lens-Short-focus lenses

2. Intelligent Traffic Systems (ITS): Enhancing Road Safety

Short-focus lenses play a pivotal role in traffic monitoring, where capturing license plates, vehicle movements, and pedestrian activity demands wide-angle clarity. Their compact size allows integration into traffic cameras without obstructing views.

TOWIN’s CS-Mount Lenses for ITS:

• Flange Focal Distance: 12.526 mm (optimized for CS-mount cameras).
• Resolution: Megapixel-grade with IR correction for 24/7 operation.
• Key Features: Vari-focal lenses (e.g., 2.8–12mm) with P-Iris for precise light control.
• Applications: Red-light violation detection, speed enforcement, and congestion analysis.

TOWIN’s ITS-Series lenses minimize distortion and deliver crisp images even in low-light conditions, ensuring accurate data collection for smart city initiatives.

CS-mount-P-Iris-CCTV-lens

3. Surveillance: Round-the-Clock Security

Short-focus lenses are critical in CCTV and IP cameras, where wide-angle coverage and low-light sensitivity are non-negotiable. Their ability to focus on nearby objects while maintaining a broad field of view makes them ideal for indoor and outdoor security.

TOWIN’s CS-Mount Lenses for Surveillance:

Fixed Focal Lengths: 2.8mm, 3.6mm, and 6mm for tailored coverage.

• Vari-Focal Options: 2.8–12mm for flexible framing.
• Iris Types: Manual, DC auto-iris, and P-Iris for dynamic lighting conditions.
• Coating: Multi-layer anti-reflective coating for IR compatibility.

TOWIN’s SV-Series lenses are widely used in retail, banking, and critical infrastructure, offering reliable performance in high-stakes environments.

4. Automotive Imaging: Driving Innovation Forward

Short-focus lenses are revolutionizing automotive safety systems, from rearview cameras to advanced driver-assistance systems (ADAS). Their compact form factor and rugged design withstand vibrations and temperature fluctuations.

TOWIN’s M12/S-Mount Lenses for Automotive:

• Thread Size: M12X0.5 for direct PCB mounting.
• Types: Fisheye (180°+ FOV), wide-angle, and low-light sensitive lenses.
• Key Features: Waterproof, dustproof, and shock-resistant.
• Applications: Backup cameras, blind-spot detection, and parking assistance.

TOWIN’s Auto-Series lenses, such as the 180° Fisheye, provide distortion-free imaging for panoramic views, enhancing driver awareness and reducing accidents.

1.9mm-8MP-fishey-lens

5. Board Cameras: Compact Solutions for Embedded Vision

Short-focus M12/S-Mount lenses, also known as “board lenses,” are integral to embedded vision systems in drones, medical devices, and IoT sensors. Their miniature size and direct PCB compatibility simplify integration.

TOWIN’s M12/S-Mount Lenses for Embedded Vision:

• Low Distortion: <1% for accurate measurements.
• Light Sensitivity: F/1.2–F/2.8 apertures for low-light performance.
• Specialty Options: Pinhole lenses for covert surveillance.
• Applications: Endoscopy, agricultural drones, and retail analytics.

TOWIN’s Board-Series lenses, like the 2.1mm Low Distortion, deliver precision in space-constrained applications, enabling real-time decision-making.

Low Distortion pinhole M12 S-mount CCTV lens

Why Choose TOWIN for Short-Focus Lenses?

TOWIN stands out in the optical lenses market for its commitment to quality, speed, and customization. Whether you need off-the-shelf M12 lenses or bespoke C-Mount solutions, TOWIN offers:

• Professional Design & Manufacturing: In-house R&D ensures cutting-edge performance.
• All-in-One Solutions: From fisheye to telecentric lenses, TOWIN covers every requirement.
• Fast Shipping: Global distribution network for timely delivery.
• Customer Support: Expert guidance from concept to deployment.

Explore TOWIN’s full range of short-focus lenses at TOWIN Optical Lenses and elevate your imaging projects today.