Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers

LPF Donation via Stripe | LPF Donation - Other Methods

Links below open in new window

ArcticMyst Security by Avery

Big problem

cbrian4

cbrian4

0
Joined
Dec 24, 2007
Messages
309
Points
0
Umm well i finished my blu ray and it works, burns stuff and quite bright. But i can't get it to focus into a beam. I have the lens in as far as it can go and it still diverges a lot. Help please :-/
 





pseudolobster

pseudolobster

0
Joined
Jan 20, 2008
Messages
1,724
Points
0
maybe you're screwing the lens in backwards?

the side with the notches in it (for a flathead screwdriver) is the side that faces the opening.. the flat side of the lens faces the laser itself.

also, if you tighten it all the way in it will be divergent... infinite culmination for most lenses is when it's screwed in about half way.
 
cbrian4

cbrian4

0
Joined
Dec 24, 2007
Messages
309
Points
0
pseudolobster said:
maybe you're screwing the lens in backwards?

the side with the notches in it (for a flathead screwdriver) is the side that faces the opening.. the flat side of the lens faces the laser itself.

also, if you tighten it all the way in it will be divergent... infinite culmination for most lenses is when it's screwed in about half way.
Click to expand...

I fixed it, lol it was because when i tried to cut the plastic away from the back of the lens i put it in a vice and smashed the threads, preventing me from screwing it in further. Blu ray is awesome!! ;D
 
You must log in or register to reply here.




Top