VL53L4CD due diligence

[TedSmith1]

Hi Community,

I’m just finishing off development of a product containing VL53L4CD and need to start to think about approvals etc. ready for product launch. The product as a whole relies on human interaction, so users will be physically close to the product and therefore the beam.

Judging by the datasheet for the part, there is no need to perform any testing for eye safety, relying instead on ST’s own certified testing, provided that we use the device in accordance with the datasheet (which of course we do) and there’s no attempt to focus the beam (which there isn’t). This will all be wrapped up in a detailed technical file, along with ST's certs.

The artwork on the product carries the Class 1 laser radiation logo and in the instructions the customer is warned never to attempt to focus the beam, nor to stare into it.

Is this sufficient due diligence, or have other developers done more and if so, what?

TIA.

[John_Kvam]

With a class 1 laser all you need to do is tell the customer that there is a class 1 laser inside. Generally that would go on the label, but billions of cell phones have with that information in the literature. The FDA allows this if the devices is small. 

There is not even a mandatory logo or wording. That is your choice. 

If you have the ST paperwork and there is no lens to focus the beam, you are all set. 

- john

(It used to be my job to assure customers that this was the way to go - but I retired earlier this year.)

- john