Optris: Bottom up glass inspection system for glass tempering lines

Low emissivity glass poses a major challenge for infra-red devices which are traditionally measuring the glass temperature from above

With the new glass inspection system from Optris, there is a new approach to temperature measurement in the production of low-e glass. Low emissivity glass poses a major challenge for infra-red devices which are traditionally measuring the glass temperature from above when the panes move out of the furnace during production.

The new bottom up glass inspection system solves this problem by having two infra-red imagers installed underneath the tempering line, which measure the temperature on the non-coated high emissivity side of the glass.

The combination of two VGA imagers with a maximum field of view of 111 degrees results in an excellent 1600 pixel scan line resolution on a maximum 4,3 metre scan width.

An ultra-fast CTlaser 4M pyrometer with 90 µs exposure time combined with the digitally controlled lens protection system (DCLP) is a reliable safeguard for both infrared cameras in case of glass breakage.

Important specifications

  • Compact bottom up system for coating independent underneath measurement
  • Integrated ultra-fast glass breakage detection combined with Digitally controlled lens protection system (DCLP)
  • Pre-assembled system for easy installation on glass tempering furnaces
  • Glass area calculation