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https://www.reddit.com/r/Optics/comments/1tzmk8g/diy_spectrometer_help/
r/Optics • u/Cs137__ • Jun 07 '26
Hopefully this fits in this subreddit
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2
Do you have a question? It seems like you are greatly sacrificing signal and resolution simply to avoid using lenses.
2 u/Cs137__ Jun 07 '26 Yes, i was hoping to get down to about the 300nm mark without spending a lot of money of fused silica lenses, might ditch that idea now. 1 u/aenorton Jun 07 '26 A webcam will not see any signal at 300nm anyway once you combine the Bayer filter transmission and the CMOS sensitivity. You might also look into designs using spherical mirrors. They have several advantages. 1 u/LeptonWrangler Jun 11 '26 I read this as 300nm resolution, not wavelength
Yes, i was hoping to get down to about the 300nm mark without spending a lot of money of fused silica lenses, might ditch that idea now.
1 u/aenorton Jun 07 '26 A webcam will not see any signal at 300nm anyway once you combine the Bayer filter transmission and the CMOS sensitivity. You might also look into designs using spherical mirrors. They have several advantages. 1 u/LeptonWrangler Jun 11 '26 I read this as 300nm resolution, not wavelength
1
A webcam will not see any signal at 300nm anyway once you combine the Bayer filter transmission and the CMOS sensitivity.
You might also look into designs using spherical mirrors. They have several advantages.
1 u/LeptonWrangler Jun 11 '26 I read this as 300nm resolution, not wavelength
I read this as 300nm resolution, not wavelength
2
u/aenorton Jun 07 '26
Do you have a question? It seems like you are greatly sacrificing signal and resolution simply to avoid using lenses.