50mW laserpointer safety questions

[krispet]

Hey, some days ago I've bought a 50mW green laser..
Can it cause eye injurie after ~5 seconds reflected from a glass/mirror/something like that?
If it can: Is it a lasting injurie, or not?

Please tell me as many details as it possible! thx.

 

[kevinmassey]

It can damage your eyes FOREVER faster than you can even blink... Do not ever shine it at anybody ever.

 

[davidgdg]

Hey, some days ago I've bought a 50mW green laser..
Can it cause eye injurie after ~5 seconds reflected from a glass/mirror/something like that?
If it can: Is it a lasting injurie, or not?

Please tell me as many details as it possible! thx.

Are you referring to an actual exposure you or a friend has recently experienced? If yes then please provide full details. Without a complete description of what happened it is not possible to answer your question.

If you are just asking hypothetically, then the answer is that a close range 5 second exposure to a direct mirror reflection of a 50 mw beam would undoubtedly pose a risk of permanent damage to the retina.

 

[Justin4758]

If you use lasers of Class 3B or higher appropriate goggles should be worn.


I recommend multiple wavelength goggles, especially for green lasers, since they protect against invisible IR emissions as well as the green laser light

 

[LA5ER]

Yes, of course! My goodness why even ask!