I'm not sure how it happened, but when I was using my laser today I noticed something strange with the beam. Upon inspection, I noticed that it appears the lens is cracked. I went to Sanwu's website, and I could not find any replacement parts. It wasn't clear to me whether or not the warranty would cover this as I am not sure how the damage happened. I really just want my laser to be back to operational. Thanks for all the help. I will post pictures of it if it would be helpful.