OEM: Which Lens Is Used In CCTV Camera – Concave or Convex?

In the precision engineering of CCTV surveillance systems, the choice of optical components determines the clarity, field of view, and overall reliability of the imaging solution. A common inquiry among procurement managers and technical integrators is: "Which lens is used in CCTV cameras, concave or convex?"

From an optical physics perspective, modern CCTV camera lenses are rarely composed of a single element. Instead, they utilize a compound lens system consisting of multiple convex (converging) and concave (diverging) elements. Convex lenses are essential for focusing incoming light onto the CMOS sensor, while concave lenses are strategically integrated to correct aberrations, minimize distortion, and maintain a compact form factor.

The Chinese Manufacturing Advantage

Vertical Integration

China's optics hubs, particularly around Shenzhen, have mastered the entire supply chain from raw optical glass grinding to multi-layer anti-reflective (AR) coating, ensuring high precision at scale.

Cost-Efficiency

Leveraging massive manufacturing throughput, YXD and similar manufacturers offer competitive pricing for complex, high-precision lens assemblies without compromising on image quality.

Rapid Prototyping

The ability to iterate on lens design and sensor alignment in-house allows global clients to shorten their R&D cycles significantly.

Industry Trends & Localized Applications

As AI-driven edge computing becomes standard, CCTV cameras are evolving from simple recording devices into "smart eyes." Our lens modules are increasingly tuned for:

  • Intelligent Recognition: Lenses designed for ultra-low distortion to support facial recognition and license plate reading accuracy.
  • Extreme Environments: Advanced infrared-corrected lens coatings for 24/7 security in industrial settings.
  • Miniaturization: Ultra-compact 9mm modules for medical endoscopes and discrete IoT security cameras.

Global Procurement Needs

Fortune 500 companies prioritize three pillars: Traceability, Consistent Aging Validation, and Technical Support. At YXD, we provide complete lifecycle management, ensuring that every batch of camera modules meets strict ISO standards.

Frequently Asked Questions (FAQ)

Q: Can I request custom focal lengths?

Yes, we offer full OEM/ODM services to customize the field of view (FOV) and focal length to your specific application.

Q: Are your lenses distortion-free?

We specialize in low-distortion wide-angle lenses, ideal for applications requiring high geometric accuracy like robotics and medical imaging.

Q: Do you offer IR-cut functionality?

Yes, our standard modules include motorized or fixed IR-cut filters to switch between color (day) and infrared (night) modes.

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