UN0551 Wide-Angle Lens | Ultra-Wide Security Camera Lens

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Security Camera Lens

UN0551 Wide-Angle Lens, 1/2.8' Sensor, 2.41mm, F2.0 Aperture

5MP Resolution for precise detail reproduction
160.1° Ultra-Wide Angle for a very wide area

UN0551 wide-angle lens features an F2.0 large aperture and a 1/2.8″ sensor, supporting 5 MP high resolution for bright, detailed, and accurate image reproduction. Its 160.1° diagonal ultra-wide field of view greatly expands monitoring coverage and minimizes blind spots. With 70% relative illumination (RI), it maintains excellent brightness uniformity from center to edge, while the –16.8% low-distortion design ensures realistic scene reproduction. Day-night co-focus technology keeps the image sharp and stable 24/7 without manual adjustment. Engineered for high-end security systems, the wide-angle lens meets the stringent requirements of surveillance equipment manufacturers for wide-angle coverage, high resolution, and superior low-light performance.

Specification

Part Number: UN0551
Sensor Type: 1/2.8'
Focal Length: 2.41mm±5%
FNo.: 2.0±5%
Total Length: 24.98±0.3mm
Mechanical BFL: 5.0±0.2mm
Max Image Circle: ∅6.8mm
Optical FOV (D): 160.1°±6°(∅6.48mm)
Optical FOV (H): 126.2°±5°(∅5.18mm)
Optical FOV (V): 93.9°±3°(∅3.888mm)
Relative Illumination: ≥70%
TV Distortion: ≥-16.8%
Chief Ray Angle: 10.54°±3°

Why Us

Design and R&D Union Optech has established sales and technical centers in Japan, South Korea, and Canada, with a dedicated production base in Thailand. These global sites allow us to work closely with customers and provide localized technical support for optical design and development.

Manufacturing Capabilities With 61 production lines, we achieve a monthly capacity of 10 million fixed-focus lenses and 2 million zoom lenses. We also maintain in-house manufacturing capability to process 60 sets of optical lens molds and 100 sets of precision component molds each month, ensuring efficiency from design to mass production.

Quality Control Our facilities support both contact measurement (with accuracy up to 0.08 μm) and non-contact precision inspection. The company is certified to ISO 9001:2015, ISO 14001:2015, and ISO 45001:2018 standards, and its laboratory is accredited by the China National Accreditation Service (CNAS) for national-level testing and calibration.

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