The CAL1 is a 0.3 m integrating sphere that uses iQ-LED V2 technology to illuminate a 70 mm opening for camera testing and calibration. A non-reflective diffusor filter on the sphere opening ensures uniformity of > 98%. This diffusor filter has better Lambertian characteristics as opposed to the first-generation device.

iQ-LED V2 technology is a light source that is capable of generating custom spectra to replicate various light sources in a test lab environment. The CAL1 has one iQ-LED V2 element built into the sphere and uses 20 LED-channels to recreate almost any light spectrum for your camera testing.

As a result of the short response time of iQ-LED V2, a full calibration can be performed in less than a second as long as the image processing and transfer of the camera are quick enough.

The main benefits of the CAL1 (and that of our other CAL products) include:

  • Camera calibration
  • Detection of defect pixels
  • Determining luminance and color shading measurements
  • Exposure adjustment
  • Measuring the spectral sensitivity

The CAL1 uses a mini-spectrometer with a spectral range of 350 – 860 nm to ensure better spectral resolution and higher sensitivity.

iQ-LED control software is provided with the CAL1. An iQ-LED API is also available as an option (sold separately) for integration into your custom design.

Light source 1 x iQ-LED V2: 41 SMD high power LEDs / 20 color channels / 4000 step control per channel and 32 kHz PWM (switchable to 1000 steps with 128 kHz) / Spectral range:
380 – 820 nm /
approx. lifetime of 10000 hours
Uniformity > 98% (70 mm diameter circle)
Predefined standard illuminants D50, D55, D65, D75, A, B, C, E
Planckian spectral curve by selected temperature (1900 - 18000 K)
Illumination stability +/- 1% when stabilized
(2% after switching D illuminants in the first 5 seconds)
Maximum / Minimum illumination values max. up to 8000 lx for standard D illuminants
min. down to 25 lx, depending on illuminant and required curve fit /CRI
Power supply 110 V / 230 V, 200 W
Dimension (W x H x D) 300 x 400 x 300 mm
Weight 2.7 kg
Delivery includes CAL1 V2, spectrometer, power cord, USB cables, control software, calibration protocol