Camera Uniformity test - KT Mini Sphere

The KT Mini Sphere is a uniform light source and integral intensity detector  based on the integrated sphere concept. Combined with precise current amps and photodiodes for internal adjustment it is  capable of accurate intensity and color correlated temperature (CCT) control. The KT-Mini-Sphere can also reperesent light with different intensities. With our calibration and adjustment procedure we are able to allow nearly step less dimming (16bit resolution of current amps)  as well as calibrations for different CCTs.

Benefits

  • Customized design matches optical and geometrical target specifications
  • Ports equipped with LED light sources and photodiode detectors
  • Small form factor
  • Accurate and uniform intensity
  • Precise intensity control
  • Precise predefined color temperature presets
  • Automatic internal stability control
  • Same time connection of multiple spheres
  • RS422 interface and control software

Features

  • Wide range power input (12V – 24V)
  • RS422 Communication Interface (Up to 15 devices on one bus)
  • Easy bus addressing with dip switches
  • Precise 16bit internal linear regulated current sources for LED regulation
  • Build in feedback loop with photodiode for temperature drift and aging compensation
  • Photodiode for external measurement of intensity (e.g. Flash Detection)
  • Adjustable intensity 500lx to 3000lx (5mm distance)
  • Calibrated for 5200K color temperature. Other CCTs between 3500K to 5500K are available on request.
  • homogeneous area: Ø 20mm

Dimensions

All dimensions measured without bottom mounting frame:

  • B:90 mm
  • T:120 mm
  • H:80 mm
  • weight: 700 gram

Capabilities

Uniformity

The KT-Mini-Sphere offers a very uniform intensity and color correlated temperature over the lens. This makes the device the perfect solution for image sensors tests like shading, blemish and blur detection

Adjustable Intensity and multiple CCTs

The KT-Mini-Sphere is capable of representing light with different intensities. With our calibration and adjustment procedure we are able to allow nearly step less dimming (16bit resolution of current amps) and also it’s possible to request the KT-Mini-Sphere calibrated for different CCTs.

Connectors

The device is equipped with two Phoenix connectors. One for Bus communication and power supply, the other one for measurement of the photodiode analog value.

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