Automotive
 

Photometry

Our precise luminance meters are used for distance or attachment measurement for light sources of all kinds. This allows compliance with regulations to be checked for minimum or maximum brightness, to ensure the quality requirements for products with displays or luminaires, to determine the need for maintenance due to aging or to optimize the uniformity of illumination.

Our core competence lies in the testing of automotive light sources, e.g. headlight systems.

Color measuring camera

Our color measurement camera enables the complex evaluation of luminous and illuminated scenes using the image of a spatially resolved luminance distribution with simultaneous recording of a large number of interconnected measured quantities.

Result data:

  • Luminance distribution in a measurement image L (x, y)
  • Derived photometric parameters such as illuminance distribution E (x, y) and luminous intensity distribution function I (x, y)
  • Statistical data for direct further processing in calculation programs (for example EXCEL®, MatLAB®, LabVIEW®)

Our services

  • Implementation of vibration measurements, e.g. with test objects or with circumferentially rotating machines.
  • Analysis and evaluation of vibration loads

Technical data

Color measuring camera Techno Team LMK 5-1 Color

Standard resolution

1380 x 1030 Pixel

High resolution2448 x 2050 Pixel
Measuring times1 Sek. – 15 sec.
Dynamic rangeColor high dynamic measurement
[ 1:10000000 (~140 dB) ]
Data interfaceGigabit Ethernet Interface (GigE®)
Spectral adaptation•With full glass filters adapted to the V(λ) function for the luminance function
•Adapted with full glass filters to the X(λ), V(λ) and Z(λ) functions to measure color values
•Further full glass filters for the functions C(λ),V'(λ) and BLH (blue light hazard) as well as IR filters are available
Meteorological data
Color measuring camera Techno Team LMK 5-1 Color
Metrological specificationsV(λ) [ f´1 < 3,5%1]; X(λ) [ f*1 < 4% ]
Z(λ) [ f*1 < 6% ]; V´(λ) [ f*1 < 6% ]
LuminanceL (cd/m²)
Color coordinatesx,y
Supported color spacesRGB, XYZ, sRGB, EBU-RGB, User, Lxy, Luv, Lu’v’, L*u*v*, C*h*s*uv, L*a*b*, C*h*ab, HIS, HSV, HSL,WST
Measuring ranges (exposure times or integration times)100 µs...15 s
Accuracy class depending on the lens (aperture number = F):1ms ... approx. 7500 cd/m² & 3 s ... approx. 2,5 cd/m² (F = min.)
1ms ... approx. 60000 cd/m² & 3 s ... approx. 20 cd/m² (F = max.)
Calibration uncertaintyFix focused lenses ∆L [ < 2% ]
Focusable lenses ∆L [ < 2,5% ]
Repeatability∆L [ < 0,1% ]?∆x,y [ < 0,0001 ]
Measurement accuracy∆L [ < 3% (for standard illuminant A) ]
∆x,y [ < 0,0020 (for standard illuminant A) ]
∆x,y [ < 0,0100 (Test color set)]
Uniformity∆L [ < 2% ]

Goniometer

The goniometer allows precise angular alignment of objects to a fixed point above the center of the build-up area.

The photometer head is holding static and faces the test sample while the test sample rotates about the horizontal axis and the vertical axis to obtain light intensity and illuminance of the tested lamp or luminaires with up to 0.01 ° angular accuracy.

Our services:

  • Light distribution
  • Illuminance
  • T-test
  • Scanning test
  • Automatic targeting

Technical data

Goniometer Everfine GO-HD5

Rotation range of the luminaires

± 180° (left-right), ± 90° (up-down)

Accuracy of the angleUp to ± 0,01°
Maximum load of the goniometer35 kg
Photometer headCLASS L (f1 '<1,5%) or CLASS A (f1' <3,0%) V (λ) correction
Measuring range of illuminance0,0001lx-200klx (automatic range)
Photometric linearity0,2 %
SoftwareSoftware according to common standards like GB, ECE, FMVSS108, JIS etc.
Measurement speedsFast / medium / slow measuring speeds are selectable

Integrating sphere

The Ulbricht sphere is used as a light source to reach diffuse radiation from directed radiation or to collect the radiation of strongly divergent sources. This measures the luminous flux emitted by a light source.

Measure what is measurable, and make measurable what is not so – GALILEO GALILEI

Technical data

Integrating sphere Everfine

Size

Ø 0,3 m & Ø 1,0 m

Thermostatic methodsEnvironmental conditions, automatic temperature constant
Coating propertySpektronTM coating, diffuse reflection, long-lasting and optically stable over time
Coating reflectivity R97, R80, UV
Geometry4π (lamp mounted in the middle)
2π (lamp mounted on the side, top or bottom)

Terms and conditions for the Environment Simulation Laboratory Herbrechtingen

Contact

Environment Simulation Laboratory
Sammr Nasrallah-Goldberg
An der Bahnbrücke, 89542 Herbrechtingen