Hi, everyone,

I’m a student want to produce a line shape illumination and a newbie in Zemax.

I use a Xenon lamp with narrow rectangular light source which has NA 0.57, hoping that by two orthogonal cylindrical lenses to concentrate the light to improve the light efficiency first, and then pass through a slit. Later pass through another two orthogonal cylindrical lenses and make the light collimated. However, this is not collimated enough for my f-theta lens. The dimensions are in attached files in detail, hoping who can give me suggestions of my illumination design, thank you very much!

my goals:

wavelength range: 450-650 um

output line length: 8.8 mm in diffraction limit

variables: distance between the cylindrical lens or other suggestions for lens substitution is welcome.