Discussion: model eye as one lens or series of lenses

[mikezucc]

I meant this Issue to be used more for some discussion. I think this project was really well done btw

I am trying to recreate the human eye as a series of lenses so I can do some ray tracing calculations on the transformation of a projection onto the retina. I am also trying to fit the projection through the iris, so I need something sort of like this http://i.imgur.com/eej7PIk.png. The image describes having a biconvex lens in front of the eye such that the focal distance allows the image flip somewhere near the iris in order to "fit" the original larger projection.

Is there a way I could just model the cornea->retina as a single lens? Or would I have to model each intermediate lens. I dont need something extremely precise (i.e. accounting for the spherical shape of the retina, as its really the fovea that's my concern). If this isn't something that can be easily solved, then which parts of the problem can I replace with an assumption?

References: Generalized eye element refractive indices and their thicknesses. http://hyperphysics.phy-astr.gsu.edu/hbase/vision/imgvis/eyesca.gif media reference: http://hyperphysics.phy-astr.gsu.edu/hbase/vision/eyescal.html

[mikezucc]

Also I took a brief look through at that enormous lens catalog, and I'll to write a script to filter lenses most closely matched to a desired config for the purpose of a simple sim.

[Sterncat]

Hi Michael,

For my optics knowledge, it is not easy and accurate to model an eye just by one single lens. There are several kinds of eye model that scientists and optical engineers used to model eye. I attached three kinds of eye model in optics simulation software CodeV. In glass part, you don't need to use real glass, you could just use the number, for 333000.550000 means the refraction index is 1.333000 and dispersion is 55.0000. Hope the information could help you!

I am glad you like opticspy.

Thank you!

Best regards,

Marvin [image: 内嵌图片 1] [image: 内嵌图片 2] [image: 内嵌图片 3]

2017-01-02 14:29 GMT-08:00 Michael Zuccarino notifications@github.com:

Also I took a brief look through at that enormous lens catalog, and I'll to write a script to filter lenses most closely matched to a desired config for the purpose of a simple sim.

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