HARDWARE

Luminance Analyser

What does LDA mean? The Luminance Distribution Analyser is more than just a piece of equipment. It’s a complete ecosystem combining premium hardware, advanced software, dedicated technical support, and our team’s deep industry expertise. Explore the options below to see what is included in our kits.

Full set of LDA contains three interchangeable lenses, digital camera body, filters for V(λ) correction, battery charger, spare battery, memory card reader, software on USB stick, printed guide, calibration certificate and necessary connection cables. 

Basic set includes all the core components of the Full Set, but comes equipped with one interchangeable lens tailored specifically to your project requirements.

Note: A sturdy tripod, ND filter, and an active USB 3.0 extension cable might be required for operation (depending on your user case) but are sold separately. 

CURRENTLY WE OFFER THESE LENSES

135 mm lens

A high-end lens with very low distortion and a large aperture, particularly suitable for analysing roadways, pedestrian crossings, displays, and, with the addition of an ND filter, for analysing the luminance of light sources and luminaires. It is suitable for scientific purposes where great attention is paid to detail.

50 mm lens

This lens is suitable for contrast analysis (visibility of pedestrians or obstacles on the road), TI, or luminance analysis in tunnels. When used with a neutral filter, it is also suitable for analysing display areas, illuminated advertisements, and billboards.

35 mm lens

The lens with the widest field of view in our range, particularly suitable for analysing luminance distribution in interiors, measuring building facades, nearby objects, urban night scenes, or parking lots.

Fish-eye and other focal lengths available on request.

TYPICAL SPECTRAL RESPONSE

Technical Specification

Hardware:
Sensor: BSI CMOS 24,5 Mpx
A/D: 14 bit / 16 383 levels
Measurement Range: 0.001 – 10 000 000 cd·m-2
Software: 2x licence of LumiDISP ver. 3.1
Optional Accessories: Tripod, ND filter, Active USB cable

OUR LumiDISP SOFTWARE

Luminance Distribution Processing

Customizable Interface and Compatibility

On wider screens, you can freely arrange the workspace windows and toolbars to match the layout shown in this screenshot. The name LumiDISP stands for Luminance Distribution Processing—an abbreviation specifically chosen for clear and easy pronunciation. The software is fully compatible with the Windows operating system, running seamlessly on Windows 7 through Windows 11.
 
EXAMPLE OF UGR MEASUREMENT
WE PROVIDE FULL SERVICE AND CALIBRATION

Analyser calibration

Like any precision instrument, the analyser experiences normal wear and tear over time, which can naturally affect its delicate components. To ensure absolute accuracy, every new instrument is equipped with a custom calibration database and undergoes rigorous testing prior to delivery. We also provide regular recalibration services to maintain the peak performance of instruments already in the field.

ARE YOU INTERESTED

Don’t hesitate to ask us!

We are here to help, advise and possibly arrange cooperation!

© 2026 With ❤️️ to light. All rights reserved.