Plz help!!! IR Filter install for 301 laser (200mw)

Hello, I'm new here . I want to install Infrared filter to this laser. --> http://laserpointerforums.com/f44/laser-301-host-breakdown-83002.htm
On which part it need to be? Are on Nr. 4 with some hot glue would be ok?
Sorry for bad english.

The link seems to be dead for me.

I choose this link just for a photo of host, to know where to place filter

I wouldn't be to worried most of the 301 laser series the greens are around 50 mW .I have quite a few and the IR measured using a LPM and pointing the laser through a pair of red safety goggles onto the thermopile measures around 10 mW on that power ,you can get lucky and get higher powered ones of course( I have been very lucky but most around 50mW ) but 200mW for a 301 series very very unlikely .The percentage of IR would be most likely quite small as I said above ,But as ARG said can't answer to much as the link doesn't work.Still be very careful with your eyes and have safety goggles anyway.

Thank you very much
Are cheap ebay glasses work good for that little power of 50mw?

A eBay cheap pair of red goggles for THAT power will be fine.But for the power when you jump up to a very high powered blue they can burn a hole through those goggles in a couple of seconds if the focus is right .Get a set of eagle safety glasses if you start to get serious with lasers .One set of eyes only ,the good safety goggles aren't cheap but there's no price on your eye sight .

http://laserpointerforums.com/f44/laser-301-host-breakdown-83002.html

Marco Polo said:

Click to expand...