Ulis achieves four-fold speed increase for bolometer

Share this on social media:

Ulis, a manufacturer of thermal image sensors, has announced a response time for its latest bolometer that is four times faster than standard bolometers. The company says it has achieved the increase in speed without compromising sensitivity.

The bolometer opens up the possibility to image fast moving objects without motion blur. According to Ulis, its new pixel technology, in conjunction with the bolometer’s comparably lower price, make it ideal for inclusion in machine vision cameras, where high frame rates for in-line quality inspection are required but the cost of adopting thermal imaging had previously been prohibitive. One example is monitoring glass manufacturing lines.

The sensor will also have applications in defence, such as in missile warning systems. Ulis, which is part of Sofradir and located in Veurey-Voroize, near Grenoble, France, will present the sensor at the SPIE Defence and Commercial Sensing show in Orlando, USA from 15 to 19 April.

Ulis says the new technology will significantly raise the overall factor of merit (FoM) of bolometers – the new pixel technology achieves an FoM of 125 to 150mK.ms, a four-fold improvement compared to standard bolometers.

FoM is a relative measure of thermal sensor sensitivity against response rate, and is a key parameter camera makers use to compare the performance of thermal sensors.

‘Ulis is thrilled with the outstanding results we have achieved in improving both the response time and sensitivity of the bolometer,’ said Sébastien Tinnes, marketing team leader at Ulis. ‘We feel camera makers will benefit tremendously from thermal image sensors, which, when used in conjunction with visible or SWIR cameras, can provide valuable additional information on product quality.’

The company presented its results in a technical paper entitled: ‘Ulis bolometer for fast imaging applications sets new response time record’ at Opto2018 in Paris.

Company: 

Related news

Recent News

14 August 2019

Speakers from the National Institute of Applied Sciences in Lyon, CEA-Leti, and Hamamatsu Photonics will give keynote presentations at the European Machine Vision Forum, to be held in Lyon, France from 5 to 6 September

13 August 2019

Cognex expects its revenue to continue to decline in the third quarter 2019, because of lower revenue predicted from consumer electronics and weakness in Europe and Asia

18 July 2019

Joining the Macnica group will enable ATD to enhance its system-level design support for imaging applications

21 June 2019

The organiser of Photonex, Xmark Media, has been bought by SPIE, the international society for optics and photonics