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 diffuser 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.
CAL3-XL
We also offer a larger version of the CAL3 for larger camera and lens systems. Check out the CAL3-XL product page for more details.
| 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 | > 95%* for FOV < 160° at min. 10 mm depth inside diffuser for 160°-180° FOV at min. 20 mm depth inside diffuser |
| 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. 7000 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) | 290 x 300 x 400 mm |
| Weight | 2.7 kg |
| Delivery includes | CAL3 V2, spectrometer (built-in), power cord, USB cables, control software, calibration protocol |
* measurement performed in the center of diffuser with standard illuminant D65
