2D Video Luminance Meter

The LS-ELF 2D Video Luminance Meter performs high-speed photometric measurements compliant with CIE 1931 standards. This system records 15 frames of 2D luminance data per second and maintains measurement accuracy while operating at vehicle speeds of 60-80 km/h. Applications include display testing, light pollution analysis, lighting system evaluation, and laboratory photometric verification.

Specifications:

Camera: USB CCD Camera, 1/4″ format, VGA resolution (640×480 pixels), optional 1200×1800 resolution available upon request

Spectral Response: Luminosity correction filter (monochrome configuration) / V(λ) filter for photopic vision compliance

Lens Options:

• 6mm fixed focus lens: Horizontal 35°, Vertical 26° (standard configuration)
• 4mm fixed focus lens: Horizontal 50°, Vertical 37°
• 2.2mm fixed focus lens: Horizontal 90°, Vertical 67°
• 12.5-50mm zoom lens: Horizontal 21°, Vertical 16°

Measurement Range: 0.5-30,000 cd/m² (requires ND filter for measurements exceeding 30,000 cd/m²)

Measurement Accuracy: ±3% relative to CIE Standard A light source

Measurement Reproducibility: ±1% relative to CIE Standard A light source

Data Resolution: Two decimal digits

Operating System Compatibility: Windows 7 through Windows 10 (32-bit and 64-bit architectures)

Lens: Multiple fixed-focus and zoom configurations available

Application: Display luminance testing, light pollution measurement, lighting system evaluation, laboratory photometric analysis

Tags: 2D Video Luminance Meter, LS-ELF, CIE 1931 compliant, photometric testing equipment