The BV room is based on our core product, the LMK, our ILMD system. It is integrated into a custom-designed laboratory and returns luminous intensities, illuminances, or even color coordinates as measurement results.
This system can be adapted to a wide range of applications, as it is almost freely scalable in terms of resolution and measuring distance. Thus, setups with a very short measuring distance of less than 1 m are possible for small measurement objects. However, large laboratories with a measuring distance of 10 - 25 m can also be realized for high-precision measurements in the automotive headlamp sector. 
Due to its size, the BV room is mainly used in the research and development area but also partly for production support. We also offer the KMP for EOL measurements. 

Components

To make sure that your BV room is perfectly adapted to your needs and specifications, we offer extensive services:

  • Photometrical calibration (luminous intensity in cd, illuminance in lx, luminous flux in lm, luminance in cd/m²)
  • Geometrical calibration (spherical coordinate system in °, metric coordinate system in mm)
  • Laboratory layout
  • Maintenance and support
Basic technical data automotive1 general lighting
Size of the device under test
 < 2 m < 2 m
Typical measuring distance 3.16 m to 25 m 1 m to 3 m
Object field hor. ±90° by vert. ±22° (3.16 m)
hor. ±90° by vert. ±8.5° (10 m)		 Hor. ±180°; vert. ±90° depending on size of laboratory and positioning system
Resolution 0.005° to 0.05° 0.1°
Measuring range 0.01 cd - 10 Mcd 0.01 cd - 10 Mcd
Measurable contrast2 1:10 000 1:1 000
Measuring time seconds to minutes3 seconds
Basic technical data
Size of the device under test automotive1: < 2 m
general lighting: < 2 m
Typical measuring distance automotive1: 3.16 m to 25 m
general lighting: 1 m to 3 m
Object field automotive1: hor. ±90° by vert. ±22° (3.16 m)
hor. ±90° by vert. ±8.5° (10 m)
general lighting: Hor. ±180°; vert. ±90° depending on size of laboratory and positioning system
Resolution automotive1: 0.005° to 0.05°
general lighting: 0.1°
Measuring range automotive1: 0.01 cd - 10 Mcd
general lighting: 0.01 cd - 10 Mcd
Measurable contrast2 automotive1: 1:10 000
general lighting: 1:1 000
Measuring time automotive1: seconds to minutes3
general lighting: seconds
1We offer a jointly patented solution with LMT for automotive headlight measurements
2CIE244:2021 f25
3With image stitching

Downloads

BV room
LID Table data sheet

Publications

TechnoTeam Bildverarbeitung GmbH, August 2010

The thesis shall give an overview of the currently existing measurement techniques for the determination of luminous intensity distributions. The main focus is to show for which measurement object which measurement technique is applicable. Where overlaps can be found, i.e. several measurement techniques can be used for the same object and vice versa, and where separation is necessary. Similarities and differences between the measurement techniques and the resulting advantages and disadvantages for the measurement of concrete objects will be discussed.
Authors: C. Schwanengel
Comparison of techniques for measuring luminous intensity distribution overall and across segments