The diagram above shows the system has been fully pressurized. This pressure is equivalent to about a 10,000 ft altitude change. The air inside the sealed chamber has been compressed due to the reduced volume. As a result the refractive index of the air has increased and caused the CWL of the etalon to move…
The diagram shown above indicates that the air pressure inside the sealed chamber has been increased. At this point the CWL of the bandpass is at 656.28nm. At this position we are looking at the Hydrogen-alpha line and the energy associated with that wavelength. The sealing of the cavity is done via the collimating and…
Lunt Solar Systems recently introduced the new Pressure Tune system, or Doppler True Tuning system. The image above shows the basic outline of this system. The internal etalon is at ambient pressure. The tuning of the etalon is slightly low, putting the Center Wavelength (CWL) at the red wing of the Hydrogen line. This provides…
On November 12th Lunt Solar Systems will be taking its new website live. I know that most of you are thinking that it is about time. I couldn’t agree with you more. The new launch will coincide with another very exciting announcement. As a result, Lunt Solar and it’s products will be recieving some significant…
It’s probably doesn’t come as any surprise that Lunt Solar Systems LLC is involved in R&D projects outside the field of Solar Filters and Telescopes. But it is because of our highly technical and specialized skills that we are often asked to develop unique optical elements that fall within our capabilities and my interests. Some…
Given today’s audio visual technologies, special effects, and image enhancement software, it’s not surprising that people expect to see everything there is to see the moment they put their eye to the eyepiece for the first time. Some walk away having seen nothing. Not taking the time to see a Star in action.Most others are…
The Sun is our Star, and as you would expect, our Star is hot, bright, dynamic, and sometimes quite violent. At 93 million miles away, we are ideally placed at a point where the Sun provides just enough warmth and energy essential to our living planet, Earth. At only 93 million miles, the Sun is…