How to define the ray tracing coordinate (Hx,Hy,Px,Py)?

Question

Hi Zemax Community,Can you help me with this?  I have read the passagehttps://support.zemax.com/hc/ja/articles/1500005580162-%E5%85%A5%E9%96%80%E3%82%AC%E3%82%A4%E3%83%89-1-4-%E6%AD%A3%E8%A6%8F%E5%8C%96%E5%BA%A7%E6%A8%99%E7%B3%BB and want to confirm that my understanding is right. Things want to doTo trace the specified field & wavelength light ray location on the image surface.    here are wave1 and wave2 at field1 (my model is a spectrometer) I use REAY in merit function and set the wave1 and wave2 coordinate as below but I am not sure whether it is right , could you please help me see it ? Thanks  Yang

Sandrine Auriol · Accepted Answer

Hi @Yang.YongtaoOpen the field data editor and define your fields there:Hx, Hy are normalized definitions.So when x=0.5 in the object plane →Hx=1When y=0.5 in the object plane →Hy=1You can then check this with the Single Ray Trace:

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