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.
CAL3 - Basic
As a Basic setup, you can also choose to have the CAL3 delivered without a spectrometer* and instead have a device with preconfigured illuminants. These illuminants must be individually requested (up to 40) and programmed into your device before delivery.
This possibility significantly reduces the total cost of the product and is an excellent option for new or smaller test labs looking to upgrade their image quality testing.
Please contact our sales department to get started with a basic product.
*A spectrometer can be purchased at a later date if desired.
| 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
