CCTV Lens – C381811816A3

C381811816A3 is a 3.8-18mm varifocal C-mount CCTV  lens.  It is designed for 1/1.8″ sensor such as imx185, imx385, imx178 for Traffic monitoring, security applications.  And it is a 3 megapixel HD lens with Auto Iris F1.6 for low light IP camera.  It is an Infrared lens for Day Night video surveillance.

Product Description

The 3.8-18mm C-Mount CCTV lens is designed for industrial cameras and imaging systems requiring flexible focal length adjustment, wide field-of-view coverage and reliable optical performance. Supporting 1/1.8″ image formats and 3MP resolution, this varifocal lens provides a horizontal field of view from 114° to 26°, allowing users to adjust scene coverage according to different application requirements.

With an F1.6-C aperture range and automatic iris, the lens provides flexible light control for changing illumination conditions. Manual focus and zoom adjustment allow users to precisely configure the imaging system for different working distances and scene requirements.

The lens also features IR correction, making it suitable for imaging systems that operate across visible and infrared wavelengths. With a 0.1m minimum object distance and standard C-Mount interface, this lens provides a versatile optical solution for security, machine vision, industrial monitoring and intelligent imaging applications.

Key Features

3.8-18mm Flexible Focal Length

The 3.8-18mm focal length range allows users to adjust the field of view according to different imaging distances and scene coverage requirements.

114°-26° Wide FOV Range

The lens provides a horizontal field of view ranging from 114° to 26°, offering flexibility from wide-area monitoring to narrower target imaging.

1/1.8″ Sensor Compatibility

Designed for 1/1.8″ image formats, the lens provides suitable sensor coverage for compatible industrial and security camera systems.

3MP Resolution

Supporting 3MP resolution, the lens provides reliable image detail for industrial monitoring, security and general machine vision applications.

F1.6-C Adjustable Aperture

The F1.6-C aperture range provides flexible light control and helps maintain stable image performance under different lighting conditions.

IR Corrected Optical Design

The IR-corrected design supports imaging applications requiring consistent optical performance across visible and infrared wavelengths.

Auto Iris

The automatic iris helps regulate incoming light according to changing illumination conditions, making the lens suitable for environments with variable lighting.

Manual Focus and Zoom

Manual focus and zoom adjustments provide flexible optical configuration for different working distances and application requirements.

CCTV Lens Applications

Industrial Monitoring

This 3.8-18mm C-Mount CCTV lens is suitable for industrial monitoring systems requiring flexible field-of-view adjustment and reliable image performance.

Security and Surveillance

The wide 114°-26° horizontal FOV range allows the lens to cover both broad scenes and more focused surveillance areas.

Machine Vision Systems

The lens can be integrated into machine vision systems requiring adjustable focal length and flexible scene coverage for inspection and monitoring tasks.

Intelligent Imaging

The IR-corrected optical design makes the lens suitable for intelligent cameras operating across visible and infrared imaging environments.

Factory and Equipment Monitoring

The flexible focal length and 0.1m minimum object distance support equipment observation, production-line monitoring and close-range industrial imaging.

Why Choose TOWIN as Your CCTV Lens Manufacturer?

TOWIN provides professional optical solutions for C-Mount CCTV lens, varifocal lenses, IR-corrected lenses and customized industrial imaging systems. With optical design expertise, precision manufacturing capability and experience in application-specific lens development, TOWIN supports customers from optical development through mass production.

Frequently Asked Questions

Q: What applications is the 3.8-18mm C-Mount lens suitable for?

A: The 3.8-18mm C-Mount lens is suitable for industrial monitoring, security surveillance, machine vision, factory automation and intelligent imaging systems requiring flexible focal length adjustment.

Q: What is the field of view of this varifocal lens?

A: The lens provides a horizontal field of view from 114° to 26%, allowing users to switch between wide-area scene coverage and narrower target imaging.

Q: What sensor size is compatible with this C-Mount lens?

A: This lens supports 1/1.8″ image formats and uses a standard C-Mount interface for compatible industrial and security cameras.

Q: What is the advantage of an IR-corrected lens?

A: An IR-corrected lens is designed to maintain more consistent optical performance across visible and infrared wavelengths, making it suitable for cameras that use both visible and IR imaging.

Q: What is the advantage of the 3.8-18mm focal length range?

A: The wide focal length range allows users to adjust the field of view for different scenes, working distances and monitoring requirements without replacing the lens.

Q: Does this lens support automatic iris control?

A: Yes. The lens features an automatic iris, which helps regulate light entering the camera when illumination conditions change.

Q: What is the minimum object distance of this lens?

A: The minimum object distance is 0.1m, allowing the lens to support relatively close-range imaging and monitoring applications.

Q: Can TOWIN customize C-Mount varifocal lenses for specific projects?

A: Yes. TOWIN provides OEM and ODM customization services, including optical optimization, mechanical adjustments and customized varifocal lens solutions for different imaging systems.

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