Slide show

An updatable holographic three-dimensional display

Nature 451, 694-698 (7 February 2008)

Holographic three-dimensional (3D) displays1, 2 provide realistic images without the need for special eyewear, making them valuable tools for applications that require situational awareness, such as medical, industrial and military imaging. Currently commercially available holographic 3D displays3 use photopolymers that lack image-updating capability, resulting in restricted use and high cost. 

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Thermal imaging

Thermo Tracer

cameraThe infrared camera NEC Thermo tracer TH7102WL  (IR camera) represents a quality instrument for the contactless measurement of temperature. Its main deficiency is that temperatures can only be read off in a single central point of the obtained thermal picture of the object measured  Using the additional programming support it is possible to choose any point inside the obtained thermographic picture of the object and get a quantitative and time-dependent value of temperature distribution.

 

The temperature value of any surface inside the thermographic picture can be represented in a numerical or graphical display. Besides the thermovision pictures recorded in the wave-length area of 8–14 μm from the IR camera, the system has been extended with an additional color camera that operates in the visible part of the spectrum. The simultaneous display of pictures from both cameras provides additional possibilities of analysis of the observed object in the process of thermal inspection. Measured data can immediately be processed in real-time and displayed on a laptop screen or can be transferred to a remote location using the web connection, where processing and graphical visualization on the basis of an existing measuring database is performed.

thermal

A further limitation of the standard IR camera consists in the exclusive manual operation of the functions and controls of the IR camera (off-line mode). The obtained thermo picture of the object measured can be stored on a compact flash memory card for later processing on a computer.Use of the existing IR camera’s interface allows connection with a computer and, with suitable programming support, the management, control and transmission of data to the computer.

Software support for controlling and measuring

The software support for the measuring system comprises of:

  • main menu of the ThermoWEB system,
  • ThermoCAM control, software support for control of the IR camera (TH7102WL),
  • ThermoWORK, software support for measuring of temperature and
  • Software support for remote control and data viewing over the WEB.
 

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