One of my kids is a cop who wears glasses. In light of some current events I am looking into getting for them a pair of laser safety goggles.

Is this sensible?

If so, what specific specs should I look for?

Thanks,

Silent

There was a recent thread on this very topic.

https://sigforum.com/eve/forums...35/m/4940019274/p/52

page 52

For those that know about lasers and protection from, will these work for the items the agitators are using?

Lightobject LSR-EP1 Multi Wavelength Laser Eyes Protection Glasses/Goggle
https://www.amazon.com/Lightob...lasses/dp/B00VA7JORM

Are there better options that anyone here is, or will be, using?

More importantly, I don't see being able to use these at nighttime, are there any goggles/glasses that can be used in darkness to protect against both red and green lasers?

I would not trust my eyes to those glasses. I work with lasers every day and have been for 13 years.

You want something to protect against blue and green lasers. Green is the most popular at 532nm wavelength. I've never seen a set of laser glasses that protect against green but did not protect against blue. So if it works for green, it will most likely work for blue. At a minimum, I would use these: https://www.survivallaserusa.c...1667092_7862033.aspx

The glasses from survival lasers will protect against UV, blue and green lasers. You'd need a separate set of glasses for a red beam. (650nm)

To understand the protection they provide, you must understand Optical Density (OD). For every OD value, it cuts the laser power allowed through by 90% (lets 10% through) So a set of glasses with an OD of 1 would turn a 10 watt laser beam into a 1 watt laser beam. An OD of 2 would turn the 10 watt laser into a 0.1 watt laser. A 3 would allows 0.01 watts through and so forth. Basically move the decimal point to the left for every OD number they are rated for.

The OD is only good at the wavelengths that is printed on the glasses. So a set of glasses rated for 532nm (green) will not protect against a 650nm (red) beam.

The ones I use at work have an OD of 9 at 532nm. An industrial set of laser glasses will run $150 and up. Mine are about $200.

More discussion here...
https://sigforum.com/eve/forums...0601935/m/1260091374

Many thanks for the info., Benny - and for the link to the previous thread on this topic. I missed that first time around.

Benny, thanks much for the information it was very helpful.

Silent

You're welcome, folks!

Another term to understand when looking at a set of laser glasses is VLT. VLT= Vilsble Light Transmission.

In other words, if you're in a room with 100 light bulbs, and the glasses have a VLT of 50%, it's like turning off 50 of the light bulbs.

Tony.