Face Shields Impact On Temperature Measurement And Mask Detection

By Ethan Ace and Derek Ward, Published Jul 27, 2020, 08:33am EDT (Research)

*****, *** *** ** **** *****, and ***, ******* **** ******* *** rising ******* *** ******. ***** **** shields *** ** ******* ****** **** coronavirus, **** **** ** ****** **** they **** ** *** ****** ************ technologies, *********** ***********, *** **** *********?

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**** ********* * ***** ** **** shields **** ******, ********* ****** ****** ******,**** ****** ******, *** ******* ********* ** ******* *******.

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******, ** ***** *** ******* ******* including:

  • **** *** ******* ******* ******* **** subjects **** **** *******?
  • **** ****** *** **** ******* ** temperature ***********?
  • *** ** **** ********* *** *********** impacted?
  • *** ** ****** **** ********* ********?

Executive *******

**** ******* **** *** ******** ** masks *** ************* ******* *** ******** of *** ******* *********** ******* ******, including ********* *******, *********** *********** *********, and ** ************, ** *** ******* effectively ****** ******* ************.

*******, **** ******* **** ********, **** devices ********* ************ ***** ** "******" body ***********, ******* ** **** ***** exposed. ****** ****** ** ******* ** simply ******** ***. ****** ***** ** "normal" ******** ** * ****** **** because ** *** ***** * ***** sense ** ******.

*******, **** ********* *** *********** *********** suffered **** **** ******* **** **** as ***** *** *********** ******* ********' faces, ********* ** ****** ********** ** recognition.

All ******* **** ******* ******* ******* ******

** *** *******, ******* ******* **** unable ** "***" ******* *** ******* face ******* ** ****. ****** ****** appeared *********** ******* ***, **** ******* details ****** ** ** **** ** thermal ******.

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************Taken **** *******

** *** *******, *****, *********, *** Sunell ******* ******* *** ******** *********** measurements ** ******** **** **** *******. In **** *****, *** ****** ******* measurement ** *** ********, ****, ****, or ***** *** ***** ****** *** face ********* ******, **** ************ ******** ~0.5-2°F ******** ** *** ******* *** shield.

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Close ** "******" ***** ************ ******** **** ** ******* ****

******* ******** *** **** (***** ********* to ******* ***** ***** *** ***** the ******),*** ********* ****** ******** ******* *********** ********** *** ******** **** *** measurement, ********* **.*°*, ******* *** **** being ******* ** *********.

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**** *** *** ***** ** *** Dahua ** ****** *******, ***** ******* shifted *********** ** *** ***** ** the *******'* ****, *********** *** *** instead (***** ** ***** *****).

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** ********, **** ** *** *********** terminals/kiosks ****** ******** ********' ***** ** provided ************ **** ***** ***** *** below *** ****** **** *******.

Face ********* / *********** ********* ******* ******

**** ********* *** *********** ********** ******** through ******* ** **** *****, ** it ** ********* *** ******* ******. However, ** ******** ******, ***** ********* prevented **** ********* **** *******:

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No **** **** *********

** ***** *****, **** **** ********* did *** **** ** ********* *** typically ******* *** **** ** ******** obscure *****, ****, ***** ****, ***. By ********, *** *********** ****** ** face ******* **** *** ******** ******* those ********, ******* ********* * ** mask *****.

*** *** ***** **** ***** *** not ***** *** **** ***** *** same ****, ** ****** ************* **** to ***** ******* **** ***** **** with * **** ******, ***** ******* will ***** ***** ******.

Hot/Cold **** ******* **** *********** ************

** ****** ** ***** **** ** the **** ******/****** *** ** ****** a *** *********** (******** ** *** sun) ** **** *********** (****-** ******/*******), the *********** ** *** ******* ***** reflect **** ********* ********. **** ***** lead ** ****** *****-****** **** * hot **** ******, ** *** ** no *********** *********** **** * ****** shield.

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*******, **** ******* ********* *******, *** both ****** *** ****** ******* **** around ******* *********** ****** * ******.

No ****-** ************ **** ** ************

******** ** **** ******* ** ************ would *** ******* * *******'* *********** through *** **** ******. *********** ************ were ***** *** ******* *********** *********, and ***** ******* * "**" (***) error *******.

*******, ***** **** *** ** **** easily **********, ** ************ ***** ****** measure ********' ********* ***** *** **** shield. **** ** *** ******** **** using ******* ** *********** *********, ** subjects ******* **** (** ****** *** forehead ***** *** ******) *** ****** not ** ********, * ****** ***** in *** *******.

**** *** ** ****** **** *********** measurement ** ******** ** ************ **** face ******* ****** ** *******.

Comments (6)

Ethan, Derek, good test!

Note: We plan a public post later this week to call out the problems here to a broader audience.

Agree: 1
Disagree
Informative
Unhelpful
Funny

Has there been a change to the IEC guidelines about wearing a full face shield that I missed?

Agree
Disagree
Informative
Unhelpful
Funny: 3

Is your company following IEC guidelines these days? ;)

To be clear, we are not claiming the IEC supports wearing these face shields, our point is that people are wearing them and many systems encourage everyone to just passively walk by.

Agree: 5
Disagree
Informative: 1
Unhelpful
Funny

Isn't it difficult to get a heat reading off something behind glass anyway? Just curious about the thermal cameras out there that get blocked when glass, or similar, is introduced.

Agree
Disagree
Informative
Unhelpful
Funny

This is great testing and reporting but, to even think (I repeat, "THINK") of using thermal imaging for accurate elevated skin temperature detection behind a shield is nothing less than absurd!!!

Agree
Disagree
Informative
Unhelpful
Funny: 1

Salesperson counter: “99.9% of people don’t have a fever anyway so just say everyone’s temp is fine, even if they have a shield and a bag over their head.”

Agree
Disagree
Informative
Unhelpful
Funny: 1
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