How the laser work

[Raymond]

I have disassembly a laser of 405nm which I find there are 4 pcs of different lens in between. One of those was like a mirror in golden colourwhich reduce cercent amount of laser intensity. Normal daylight or torch light cannot pass through it. only the blue laser can pass through.
Can anyone tell me what is the purpose of this len.
Thanks a lot.

 

[lasersbee]

Post pictures of the parts... It will be easier to answer
your questions...


Jerry

 

[Raymond]

Post pictures of the parts... It will be easier to answer
your questions...


Jerry

It was very thin just like a pc of metal sheet. I guess thickness was similar to 2~3 layer of aluminium fold.
I have took the photo but I don't konw how to post it.

 

[lasersbee]

Go to [Edit]... then [Go Advanced]..
at the bottom you will see [Manage Attachment]

You can upload 800 X 600 Max pictures from your
computer...


Jerry

 

[Raymond]

Attached.
The metal sheet was mounted in a black hosting.

 

[Tech_Junkie]

spam reported

 

[Xtrm2Rick]

do you perhaps have a link to where you bought it from?

It look like some kind of a digro / filter, but i dont see the use of this for 405nm laser.....:thinking:.... i might be wrong like 90% of the time though

Very interesting non the less

 

[Tech_Junkie]

It looks like typical AR coating.

 

[BShanahan14rulz]

This must have been a fancy laser. What kind of laser is it?