12MP 1.1 Inch C-Mount Fixed Lens, 20mm F1.4 Day Night IR Corrected Lens for Traffic Violation Detection page banner

12MP 1.1 Inch C-Mount Fixed Lens, 20mm F1.4 Day Night IR Corrected Lens for Traffic Violation Detection

Short Description:

2MP 1.1" C-Mount 20mm F1.4 IR Lens for Intelligent Transportation System

This is a 12MP C-mount fixed focal intelligent traffic lens with 1.1” image format, 20mm focal length and F1.4 aperture. It adopts an 11-element optical assembly and precision metal housing. The lens delivers consistent focal plane across visible and infrared wavelengths. No refocus is required while switching between daytime color imaging and night IR illumination, fully satisfying the imaging requirements for traffic violation detection.

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Key Specifications

· Resolution: 12MP

· Image Format: 1.1"

· Focal Length: 20mm

· Aperture: F1.4

· Mount: C-Mount

· Relative Illumination: 49%

· CRA: 10.5°

· TV Distortion: -1.52%

· M.O.D.: 0.5m

· Filter Thread: M40.5×0.5mm

· Lens Structure: 11G

· IR Correction: Yes

· Spectral Transmission: 440-650nm & 850nm

Advantages

1. F1.4 large aperture design, high luminous flux to capture sharp details for reliable traffic violation detection.

2. IR corrected optical design, unified focal position for day and night scenes, a core guarantee for stable traffic violation detection.

3. Controlled TV distortion at -1.52%, minimizing image deformation to accurately restore vehicle shapes and road features.

4. Optimized CRA at 10.5°, balances edge illumination and color consistency across the full sensor area.

5. Short minimum object distance of 0.5m, supports close-range road image capture for near-site detection.

6. Compact metal body with M40.5 filter thread, convenient for mounting IR-cut or polarizing filters.

7. Manual iris & manual focus structure, flexible fine-tuning to adapt to variable ambient lighting conditions.

Applications

1. Urban road intersections: Captures vehicle movements and red-light running behaviours for traffic violation detection.

2. Community access roads and city branch roads: Supports continuous 24-hour image collection under strong sunlight or infrared night lighting for traffic violation detection.

3. Tunnel entrance & exit sections: Adapts drastic light variation between inside and outside tunnels, delivering clear footage for traffic violation detection.

4. Urban viaduct ramps and roundabouts: Detects illegal lane changes and vehicle cut-ins, well-suited for complex traffic scenarios for traffic violation detection.

5. Urban traffic law enforcement points: Compensates for blind areas of long-focus cameras, providing authentic image evidence under mist and drizzle for traffic violation detection.

Parameters

Parameter of Lens
Model YLHD2014IR-12MP

YLHD2014IR-12MP

MTF(Pixel) 12MP
Image format 1.1”
Focal length 20mm
Aperture F1.4
Mount C

Field Angle

Dx H×V(°) ±5%

1.1  SC910
D 50.69 °
H 43.60 °
V 27.00 °
Relative Ill 49%
CRA 10.5 °
TV Distortion -1.52%
M.O.D 0.5m
Optical Length 85.436mm(含 1.5 窗片)
Dimension Φ45.7x67.91mm
BFL-0 14.4mm(含 1.5 窗片)
BFL-M 10.54mm
Filter size M40.5x0.5
Lesn Structure 11G
IR Correction Yes
Spectral Transmission 440-650mm&850mm
Operation

Focus 手动

Iris  手动

Operating temperature -20℃~+70℃
Size

YLHD2014IR-12MP-size



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