Hi!
For a biomedical application, I need to create a relatively uniform illumination of 15x15 cm at about 30 cm distance (15 degr angle). Laser should be red or near infrared.
I basically have two questions:
1. Is it possible with affordable components to create a "divergent flat-top" profile? The flat-top beam shapers I have seen cost several 1000s of dollars, which is far beyond my application.
2. If I am willing to accept a inhomogeneous beam profile, should I just take a raw laser diode or would it be better to use a cheap focusable dot laser and adjust its focus. Is it possible to make these as divergent as I need, i.e. 15 degrees?
Thanks in advance and by the way, great forum!
For a biomedical application, I need to create a relatively uniform illumination of 15x15 cm at about 30 cm distance (15 degr angle). Laser should be red or near infrared.
I basically have two questions:
1. Is it possible with affordable components to create a "divergent flat-top" profile? The flat-top beam shapers I have seen cost several 1000s of dollars, which is far beyond my application.
2. If I am willing to accept a inhomogeneous beam profile, should I just take a raw laser diode or would it be better to use a cheap focusable dot laser and adjust its focus. Is it possible to make these as divergent as I need, i.e. 15 degrees?
Thanks in advance and by the way, great forum!