The Problem With Fever Detecting Thermal Sunglasses

By Charles Rollet, Published Apr 15, 2020, 08:13am EDT (Info+)

While the media has promoted using thermal sunglasses to detect fevers, this approach has fundamental problems and, at best, is health theater.

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Inside this note, we examine the claims and reported issues, including:

  • Who is offering these sunglasses, most notably Rokid
  • What it claims to deliver
  • What reported issues have been found
  • What fundamental problems this approach suffers from
  • Why it has been positive press for Rokid
  • Rokid's response to our questions
  • How this hurts public understanding further

Rokid ********

*****, ***** ** ********, ** * PRC **** ******* ******* ** **** which ********* $***+ *******. *** ******* *********** ** *** types ** ********:********* ******* (**) *******, ******* ** ****** *****, ******** ********(******* ** ******'* *****).

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***** ** *** ********, ***** *** not ***** *** ******* ****** ********* for ***** ** *********, *** ******* confirmed ** ****.

Claimed ********

** ***** **,***** ********* * ****** *********** **** *** "**" ******* ****** sunglasses ******** *** ***** **** ** security ****** ** ******* ******** ** the **** ******** ******* **** ** Hangzhou, ********:

********** ****** *********** ** **** **** 0.2 *******. *** ****** **** *** hundred ****** ****** * ******* *** security ****** *** ****** ********' *********** at * ******** ** *** ***** [about * ****].

********* ** *****, *** ********** *** in *** ** ****** ******* ****** the **** *** ******** ********, ************* alerting ***** **** **** **** *****.

*** ********** *** **** **** ** guards ********* ** *** ****'* ********, where ******** **** ** **** ** and **** *** **** ********** ***** ****** ******,*****'* ********* ******.

Rokid ********* ******

***** **** **** * **** ***** on *** ** ******* (***** ** were *** ********* ** ******** ** full). *** ***** **** * ****** of ******, *********:

  • ** * * ***** (*.* ****) distance, ******** ** ****** ± *.*°* for ******** *** ****** ± *.*°* for *******. *** ***** **** **** IPVM: "*** *** ********* *** ***** greater ********. ** * * **** distance, *** ********* ** ****** ± 0.4°C *** ******* ******* *** ****** ± *.*°* *** ****** *******; ** 6.6 **** ********, *** ********* ** with ±*.*°* *** ******* ******* *** ± *.*°* *** ****** *******. *** furthest ********* *** ******* ** ** 9.8 ****. "
  • ******* **** ******** **********, *****'* **** sheet ******: "* ******* *** ** sent **** ** *** ** * meters [** ****] **** **** ******** body *********** ** ********."
  • ***** **** ***** ******* "********* **** of ***** ** ***% **** * reading ******** ** **.*%." *** ***** later **** ** ** *** "*************", and **** ***** ** *** **** "thermal ******* *** ** ***% ****-**** generated *** ********* ** *** ***** without ******* *** ********* ******".

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Reported ****** *****

******* **** ************ *********** ****** *** "****** ******" about *** ******** ** *****'* ******, but *** *** *********. *** ***** (non-Rokid) ***** ********* ******** ********* **** raised ******** ** *****:

  • * ***** **** ***** ***** ******** guards ***** * *******-********* ****** ** downtown ******* *********** *** ********* **** **°* (***°*), ********** * very **** *****, *** ***** *** temperature *** ****** ** **.*°* (**.*°*) when ******** **** * ******** ***********. The ****** ** **** ** *** security ********* ***.
  • ************ ****** ***** **** ******** ******* **°* and **°* ******** **** * *******-******* access ******* **** ******** ******* ****** no *****, **** *** ******** ***** explaining **** *** ******** *** ** her ******** ** *** ***.

Fundamental ******** **** ********

***** *** ***** *********** ******** **** the ******** ********:

  • **** **** *** ***** *** *** subjects ******, ** ** **** ** get * ****** **** / ******* of *** *******'* ****. ***** ******* of * **** *** ****** ** result ** ***** ******** **** ***** effectively **** ** *********** ****** ** Rokid's *** **** ***** ***** *****:

  • ** ** ****-*** *********** **** * park, ************* ********** **** **** ** sunshine **** **** *********** ********** ******* on ********. ***** **** ** ***** solution "** *** *****-***** *** ****** be **** ** ******* ***" *** does ******** ********** ** ***** *********, night ** ***. ******** ****** ***************, fluctuations ** ******* *********** *** **** levels ******** **** ***** ******.

Rokid ******** ** ****

***** ****** "** **** **** **** testings ***** *** ********" *** "** general ******* *********, *** *********** *********** performance ** **** ******."

***** ******** **** ******* ***** ** its *******, ***** ** *** *** permitted ** **** ********. *** ***** were *** ***** ******* ********* ** sunny/good ********** (***** **** ***-****** ********, sun ** *** *****, *** *** in *** ****) *** *** ****** scenario, ** ********* *********. ********** ** the ******** **** **********, ** ** possible ** *** **** ******** **** high ********, *** ***** ** ******* across ********* *******, ***********, **********, *** positioning ** ****** ** *** ****.

Outdoors **** **** ** ** *******

********* **** ** *** ***** ********* of ******* ***** ******* *** ************ such *******, ** *** ****, ************. This ** * ********** ** *** engineering ********* **** **** ** ******** is *** ********, ******* **** ***** would ** *********** ****** *** **** an ********.

Positive ***** *** *****

******* *** *********** ********, ** ***** has ****** *** *****'* *********. **** if *** ******** ** ********* ** the ****** ** **** *** ** accuracy ****** *** ********* ********* *********** conditions, ***** *** ********* **** * slew ** **********, ******** ***** ***** it *************** ** *******:

********** ***** ******* *** ****** *** coronavirus-related **** ****, ********* ** ******/************* coverage ** ************ *********' ******. **** observed **** *** ****** ********, ***** enjoyed ******** ******** ******** ***** ** found ** ******** *** *************** ***** *** ***** **** ** thermal ***.

Hurts ****** ************* ** *******

***** **** *** ** **** *** companies ********* **** **** *****, **** increases ****** ********* ** ******** *** unrealistic ******** ** ********* ****** **** more ****** ***** **** **** ********** is **** ******** **** ** ******** is.

Comments (2)

Seems to me this sort of thing is meant to give the impression things are being monitored, rather than actually doing the job they're intended to do. I'm more of a facts guy, but I can see how businesses and governments would be anxious to convince people that everything will be fine, thanks to this new tech.

Agree: 1
Disagree
Informative
Unhelpful
Funny

0.3 C accuracy with no blackbody?

what about heat conduction thru the head mount?

so if the operator has a fever, everyone else will appear cool? :)

Agree
Disagree
Informative
Unhelpful
Funny: 2
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