Spectrophotometer alignment

[darwinbandoy]

I am working on a raman microscope, one of the components is a spectrophotometer.

I decided to follow the current working guide but doing so will not generate any spectra.

The camera or imaging module must be perpendicular to the diffraction grating.

In my case I placed a perpendicular 45 degree mirror so spectral image is reflected on top where a phone or webcam imager can be conveniently placed.

[beniroquai]

Hey @darwinbandoy, thanks for filing this issue. Do you want to directly use the UC2 Spectrometer for Raman imaging? This sounds tough, but I'm sure you have adapted your design already or?
@edabngl has made some experiments with the spectrometer, perhaps she can help you?

[darwinbandoy]

I made multiple modifications:

1. I created covers but PLA is too shiny so I added black paper to reduce reflection
2. I controlled light entry by coupling fiber optic as entry point
3. I designed a diffraction grating mount
4. I modified the alignment of the diffraction grating with mirror and imaging system

I am still doing some modifications but I can share my modified version if this valuable to the community.

Would love to reach out to other makers out there.

[beniroquai]

It would be brilliant to see that! I'm very curious. Would you mind sharing it here?
Also if you want you can contribute with a pull request.
We will ship the version "v3" in the next days. Everything will be compatible though, don't wonder ;-)

[darwinbandoy]

So far the fiber optic spectrophotometer prototype is working (generates spectra).

I will do some refinements and would share the results here.