Flicker & Glare Test
LLD-2120 Luminance Measurement System
Wide dynamic range , high repeatability
LLD is specifically designed for on-site measurement of tunnel lighting and road lighting; it enables easy installation. With exceptional imaging quality, high accuracy, high repeatability, and intuitive operation, it is widely used in road lighting, tunnel lighting, architectural lighting, and related fields.
Features
- One single sampling delivers full information on light and color uniformity
Equipped with scientific-grade thermoelectric cooled area array detector, it performs the work equivalent to thousands of spot luminance meters simultaneously in one measurement. It rapidly and accurately captures luminance and chromaticity data (subject to order specifications) across the entire field of view and completes uniformity analysis automatically. - Low-luminance Measurement with High Repeatability
Noise is a key factor affecting measurement sensitivity, stability and repeatability. Fitted with professional image sensor and high-performance cooling structure, the device delivers highly stable measurement with outstanding repeatability even under low-luminance conditions to ensure accurate low-brightness testing. - Wide Linear Dynamic Range & Superior Measurement Accuracy
Adopting high dynamic range (HDR) technology, it achieves excellent measurement linearity across seven orders of magnitude. - Software Compliant with Chinese Standards & International CIE88 Standard
Feature-rich, user-friendly software with intuitive interface is developed in accordance with domestic Chinese standards and international norms including CIE88 to satisfy all on-site measurement requirements. - Achieve luminance distribution measurement for various spatial resolutions and lighting scenarios
For road lighting applications, the LLD system conducts measurement and analysis of average road surface luminance, overall luminance uniformity and longitudinal uniformity complying with Chinese and European standards.
Besides calculating the threshold increment (TI) of road lighting, the system also measures and analyzes tunnel lighting per Chinese specifications and CIE documents. It covers luminance evaluation across tunnel access, transition zone, inner tunnel and exit sections, alongside key tunnel lighting parameters such as Lseq and L20. - Stable and reliable data communication
Gigabit Ethernet connectivity ensures dependable long-distance data transmission even in complicated production environments.
Technical Specifications
| Model | LLD-2120 |
| Pixel Count | Not less than 12 million pixels |
| Exposure Time | 100μs - 30s |
| Luminance Measurement Range | 0.001 cd/m²–500,000 cd/m² (range configured to order) |
| Typical Luminance Measurement Time | ≤1 s @ 100cd/m² |
| Measurement Distance | Wide-angle lens: 0.3 m–∞ |