Xiaojin Zhu (Jerry Zhu)'s old CMU Homepage personal blog
A CD Spectrometer (2006)
A simple spectrometer can be built from a CD and a box. Cut a slit on one side of the box. Place the CD on the other side with about 60 degree angle. Look down into the openning on the box. The slit should not be too wide, otherwise the spectrum lines will be blurred. It should not be too narrow either, otherwise the…
- Points
- 215
- HN comments
- 57
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- 0 commenters
Science & SpaceHardware & Electronics2023
On Hacker News
| Submitted | Title on HN | Points | Comments |
|---|---|---|---|
| Sep 13, 2023 | A CD Spectrometer (2006) by wcrossbow | 215 | 48 |
| Sep 27, 2015 | Constructing a spectrometer using a CD by gwern | 84 | 9 |
