I know there are 14X bluray drives out now, are they higher power laser diodes than the 12X?
Earlier I chatted with Edmund Optics online tech support for about 30 minutes...
they said if the laser is elliptical (think 445nm bar lasers), these "anamorphic prism pairs" may help to correct it to a more spherical shape (they don't sell a mounting package for the 2 prisms though)
Anamorphic Prism Pairs | Edmund Optics
they said to put it through a collimating lens
Blue Laser Collimating Aspheric Lenses | Edmund Optics
then put the collimated beam into a focusing lens
Precision Molded Aspheric Lenses | Edmund Optics
What do y'all think? I only need to etch silicone that's about 100 microns thick, so a close focal length (shallower depth of field) is not a problem. I am thinking 10-25mm focal length would work.
Do you agree with the Edmunds guy that the laser would need to be collimated? If so I need to measure the NA of the laser diode, anyone here done that before and have a HOWTO?
Earlier I chatted with Edmund Optics online tech support for about 30 minutes...
they said if the laser is elliptical (think 445nm bar lasers), these "anamorphic prism pairs" may help to correct it to a more spherical shape (they don't sell a mounting package for the 2 prisms though)
Anamorphic Prism Pairs | Edmund Optics
they said to put it through a collimating lens
Blue Laser Collimating Aspheric Lenses | Edmund Optics
then put the collimated beam into a focusing lens
Precision Molded Aspheric Lenses | Edmund Optics
What do y'all think? I only need to etch silicone that's about 100 microns thick, so a close focal length (shallower depth of field) is not a problem. I am thinking 10-25mm focal length would work.
Do you agree with the Edmunds guy that the laser would need to be collimated? If so I need to measure the NA of the laser diode, anyone here done that before and have a HOWTO?