Active optics are where you manipulate the mirrors and lenses in your telescope to compensate for the swimming effects in your images caused by the motions of the gases in the atmosphere. These techniques have become possible with the advent of cheap high speed computers.
Active optics involves the use of adjustable mirrors and other components to correct for atmospheric distortions and maintain the shape of a telescope's primary mirror during observations. It focuses on optimizing the telescope's optical system as a whole to achieve the best image quality. In contrast, adaptive optics specifically refers to real-time corrections made to compensate for atmospheric turbulence, using deformable mirrors that adjust rapidly to improve image clarity. While both techniques enhance image quality, active optics is more about structural adjustments, whereas adaptive optics targets dynamic atmospheric changes.
It is meant to still be active but has not erupted for about 160 years
Zeal Optics produced a variety of sunglasses available for those living an active lifestyle. They sell sunglasses for both men and women available in small, medium, and large sizes.
Albert A. Michelson has written: 'Studies in optics' 'Studies in optics' -- subject(s): Optics 'Studies in optics' -- subject(s): Optics
One highly recommended optics textbook for studying the principles and applications of optics is "Optics" by Eugene Hecht.
Associations active in more than one country.
active component
W. A. Douthwaite has written: 'Contact lens optics and lens design' -- subject(s): Contact lenses, Optics, Physiological optics 'Contact lens optics' -- subject(s): Contact lenses, Optics, Physiological optics
Hugh J. Robertson has written: 'Simulation in radiology' -- subject(s): Computer Simulation, Radiology, Education 'Development of an active optics concept using a thin deformable mirror' -- subject(s): Mirrors, Reflecting telescopes, Reflection (Optics)
Associations active in more than one country.
Progress in Optics was created in 1962.
Optics Communications was created in 1969.