My system comprises of: a light source, a set of lenses, a projected image of the light source. I want the projected image to be both further away from the lenses and smaller than the source. Which is in contradiction with the optic law that : source size / source to lens distance= image size/ image to lens distance.

Do you know optical tools that could help me ?

  • $\begingroup$ Holographic projection... $\endgroup$ – Solar Mike Jan 18 '18 at 9:38
  • $\begingroup$ thanks but overkill in my case, I just need to project a narrow cone of light for microscope epi- illumination $\endgroup$ – Manu de Hanoi Jan 18 '18 at 11:49
  • $\begingroup$ You asked for optical tools - no budget limit, lacked the detail of working with microscope ... $\endgroup$ – Solar Mike Jan 18 '18 at 11:51
  • $\begingroup$ Probably www.optenso.com or www.zemax.com can help you. I don't know those programs, though, this is just a guess. $\endgroup$ – Robin Jan 18 '18 at 13:17
  • $\begingroup$ Not a problem: just generate an intermediate image plane and relay that to your final location. $\endgroup$ – Carl Witthoft Jan 18 '18 at 15:13

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