The Camera and Display Labs

Our camera labs are equipped with different light sources to create distinct illumination conditions. These conditions differ in terms of illuminance level and illumination area size, spatial illumination uniformity and spectral content.

The labs include reflective and transmissive test targets, these targets are used to characterize camera component and system performance using standard or customer-specific evaluation software.

Our typical measuring parameters: 

  • Aberrations

  • OECF

  • Sharpness

  • SNR

  • DR

  • FoV

  • Distortion

  • Flicker

  • Color reproduction/WB

  • Ghost/flare 

  • Blemish

  • Veiling glare and others.

We have a number of dedicated test stations and equipment available for further camera and light source characterization.

Light Source Measurement Systems:

We have the ability to measure a large number of photometric and radiometric characteristics, form different light sources, like LEDs, in a wide spectral range. 

  • Electrical characterization of light sources like LEDs 

  • Flash distribution meter for measurement of illumination uniformity

  • Intensity measurements can be performed to verify LED and other light source components with our spectrometer and accessories

  • Spectral characteristics and total flux are measured with our large integrating sphere that is suitable for very small sources up to larger light panels

Our Software tools:

  • MATLAB

  • Imatest Master

  • Iset – Image System Engineering Tool

  • Image sensor simulation tool (internal)

  • Camera performance evaluation tool (internal)

  • Additional Hardware tools

  • A large number of other test-related tools are available for camera and flash measurements like filter, lenses and handheld measurement equipment.

  • A Large scale calibrated printer for accurate test chart printing.

  • Calibrated Spectroradiometers (PR705/ PR670) for the measurement of photometric and radiometric parameters.

Display characterization:

Sigma Connectivity has extensive experience in product development, system integration and testing of most types of display technologies.  

Characterization examples:

  • Luminance

  • Contrast ratio vs viewing angle

  • Color gamut size

  • Transmission

  • Reflectivity

  • Crosstalk

  • Flicker

  • Gamma curve

  • Color coordinates Macbeth

  • Grayscale color coordinates, plot in MacAdam ellipse

  • Uniformity

  • Color coordinates vs temp

  • Contrast ratio vs temp.

  • Response time

  • Polarization orientation

  • Image retention

  • Readability in strong sunlight

  • Off segment visibility pooling

  • DBC (dynamic backlight control) or similar

  • Split image

  • Frame rate

  • Grayscale and color inversion at large angles

  • Touch panel characterization

We also have extensive experience in product development, system integration and testing of capacitive and optical touch panel modules.

Testing Examples:

  • Robot-assisted testing

  • Accuracy

  • Linearity

  • Precision

  • Jitter

  • Noise

  • Response time

  • Latency

  • Charger noise

  • Temperature impact

  • Gestures

We have developed everything from the mobile cameras implemented in the world's most advanced phones to medical applications and sensors.

We have extensive experience in optimizing and integrating cameras, displays and sensors from technology leading suppliers such as Sony and Samsung, as well as executing tuning of platforms, camera functions such as auto exposure, white balance, color optimization.

We can work in any part of the process from simulations with tools like Zemax and LightTools through design, integration and verification of components or products.

If you are looking for a design house to help you connect your product, improve the performance of your product or simply do a quick update then click the learn more button at the end of the page.

Elin Jönsson