| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| Ag8n | "I think your best bet is to call ocean optics. They used to be open to experimentation with their equipment. Unfortunately, the last time I dealt..." | Read more » | about 3 years ago | |||
| jd2602b | "Excellent work, the DVD grating offers mentioned advantages. " | Read more » | over 5 years ago | |||
| Vman | "Thank you so much for the idea on using heatshrink material as a material for making the slit. This is better than paper or cardboard because it di..." | Read more » | over 7 years ago | |||
| lionheadrex | "THANK YOU!!! I'm terribly impressed that you could tell the circular grooves were horizontal. I'm going to have to tinker a little bit to make th..." | Read more » | over 10 years ago | |||
| cfastie | "That looks like a good arrangement. The DVD grating might have to be rotated. The circular grooves in the DVD (concentric to the outer edge) should..." | Read more » | over 10 years ago | |||
| lionheadrex | "Here you go. I've tried a variety of angles, and I can see some emmission spectra, but once I close the box it goes away and all I can see is dark..." | Read more » | over 10 years ago | |||
| warren | "Hmm, can you upload a photo of the box with the new angled layout? " | Read more » | over 10 years ago | |||
| amysoyka | "This is your box: |o> |=| |__|| Your pointing your camera directly at the double slit - you instead need to point it at the black of the wal..." | Read more » | over 10 years ago | |||
| lionheadrex | "Hmmm... when I do this, I can get green and blue lines running the right way - until I close my box. Then they're gone completely and still all I ..." | Read more » | over 10 years ago | |||
| cfastie | "The grating (DVD) bends the light as it separates it into colors. So the grating has to be at an angle to the light coming from the entrance slit. ..." | Read more » | over 10 years ago | |||
| warren | "Sunwukong - I would love to see a pic of your setup; is it connected to a telescope? " | Read more » | almost 11 years ago | |||
| cfastie | "Sunwukong, You can download the data from any spectrum at SpectralWorkbench.org. So at this page for one of the nicer CFL spectra from Ebert, you c..." | Read more » | almost 11 years ago | |||
| sunwukong | "Do you have a data source for the intensity, pixl, wave length for the CFL in this image. Pictures are beautiful. I have a similar setup using so..." | Read more » | almost 11 years ago | |||
| cfastie | "Hi Spectralod, Your long tube CFL spectrum is calibrated correctly. I am not sure why you are not getting more distinct peaks with regions between ..." | Read more » | almost 12 years ago | |||
| spectralod | "I should have also said that I don't understand this website. It's all over the place. Is there one of those standardized forums you could use inst..." | Read more » | almost 12 years ago | |||
| spectralod | "How do you calibrate anything? I haven't figured this out yet. I don't have 3 blue wavelengths to choose from...I don't know which other green wave..." | Read more » | almost 12 years ago | |||
| Tom_H | "Chris, I also noticed the 405nm line was all but absent in your spectrum, and that is one reason I brought up my previous experience. I came acros..." | Read more » | almost 12 years ago | |||
| cfastie | "Tom, How did the CFL lines drop off in your earlier spectra? I have noticed that my spectral images taken with P&S and DSLR cameras do not reco..." | Read more » | almost 12 years ago | |||
| Tom_H | "Chris, How did you overlay the spectral image on the Excel graph? There is another way to extract data from the camera image: Use a software that..." | Read more » | almost 12 years ago | |||
| Tom_H | "Good job. I am inspired to work on a similar project. I love the way you recycle what most see as junk! A man after my own heart. I made a spect..." | Read more » | almost 12 years ago | |||
| warren | "Wow, i did not regret that. " | Read more » | almost 12 years ago | |||
| cfastie | "You tell me. " | Read more » | almost 12 years ago | |||
| warren | "If i watch the video, will I know why the post is named "Ebert"? " | Read more » | almost 12 years ago | |||
| straylight | "rather nice. I need to lift my game ! :) " | Read more » | almost 12 years ago |