I only posted what I had read on another place, and that's what I learned as far as how it worked. And I didn't know there was a proper definition for 'optic' A crystal to me is an 'optic' given tha it alters light in one way shape or form, and/or presents it. Glasses, alter light hense optic, crystals alters light...optic. Sorry for posting what I learned to be fact, it's what I 'knew' evidently I knew wrong.....I apologize, so please disregard everything I said, except for the fact that you should leave the repairing to the profesionals given that you, just like I evidently, would not know what you're doing...again I apologize.
And I can't comment on whether you have an IR BURNER other than an IR 'light' since I wouldn't know enough to confirm or deny such querries, I do know however that you should still retain such precautions as would 'normally' be take with such, whether its 5mw or 500mw, just be careful since you don't know. 'Never walk in a field which could be home to mines, mines don't talk, move, or eat or drink, you never know what could be lying below'. Just act like it's dangerous if anything, unless you got a LPM to test it. And again I apologize for trying to provide information that I wasn't positive on, that was a big mistake I see