The CAL3 is a 0.29 m integrating sphere that uses iQ-LED V2 technology to illuminate a 38 mm concave curved opening. This type of opening as opposed to the flat opening found in CAL1 is ideal for cameras with a wide-angle lens as it supports a 180-degree field of view for the camera under test. A bowl shaped non-reflective diffusor filter on the sphere opening ensures uniformity of > 95%.
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 CAL3 has one iQ-LED V2 element built into the back of the sphere, and it 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 CAL3 include:
- Camera calibration of wide-angle lenses
- Detection of defect pixels
- Determining luminance and color shading measurements
- Exposure adjustment
- Measuring the spectral sensitivity of multiple devices
The CAL3 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 CAL3. An iQ-LED API is also available as an option for integration into your custom design.