I'm working the kinks out of a Lockyer style spectrometer, and I am having a few issues. Where should the second telescope focus, the slit?
To better explain, as y'all know it goes objective, slit, lens, prism chain, then the second telescope. I'm getting lovely projection of the lines on a bit of card, but I'd really like to finish it up.
I'll be adding another slit for a prominence spectroscope, then eventually a spectrograph, but one thing at a time.
little help, please
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Re: little help, please
<name?>,
An interesting project....a four prism train is a challenge to align!!
The imaging telescope behind the prisms should be focused to infinity if the set-up is correctly collimated.
An interesting project....a four prism train is a challenge to align!!
The imaging telescope behind the prisms should be focused to infinity if the set-up is correctly collimated.
"Astronomical Spectroscopy - The Final Frontier" - to boldly go where few amateurs have gone before
https://groups.io/g/astronomicalspectroscopy
http://astronomicalspectroscopy.com
"Astronomical Spectroscopy for Amateurs" and
"Imaging Sunlight - using a digital spectroheliograph" - Springer
https://groups.io/g/astronomicalspectroscopy
http://astronomicalspectroscopy.com
"Astronomical Spectroscopy for Amateurs" and
"Imaging Sunlight - using a digital spectroheliograph" - Springer
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work continues
Have the final form just about there. Need to work on focus and putting a brass box around it to shade the light. That is a Mercury lamp at the end there. I can see the lines, but they are not sharp because it is so lose, I think.
I am also putting together a wire diffraction grating to make a little Fraunhofer spectroscope. Also in the works is a ruling engine to make some gratings.
Cheers,
Chriso
I am also putting together a wire diffraction grating to make a little Fraunhofer spectroscope. Also in the works is a ruling engine to make some gratings.
Cheers,
Chriso
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Re: little help, please
Chriso,
Very nice.
You should consider the Browning mechanism to keep all the prisms working at maximum efficiency at their minimum deviation angles....
Very nice.
You should consider the Browning mechanism to keep all the prisms working at maximum efficiency at their minimum deviation angles....
"Astronomical Spectroscopy - The Final Frontier" - to boldly go where few amateurs have gone before
https://groups.io/g/astronomicalspectroscopy
http://astronomicalspectroscopy.com
"Astronomical Spectroscopy for Amateurs" and
"Imaging Sunlight - using a digital spectroheliograph" - Springer
https://groups.io/g/astronomicalspectroscopy
http://astronomicalspectroscopy.com
"Astronomical Spectroscopy for Amateurs" and
"Imaging Sunlight - using a digital spectroheliograph" - Springer