Visual Dictionary Online
About the visual
Merriam-Webster Online >
Plants & gardening
Food & kitchen
Clothing & articles
Arts & architecture
Transport & machinery
Sports & games
CROSS SECTION OF A REFLECTING TELESCOPE
cross section of a reflecting telescope
Magnification depends on the length of the main tube and the power of the eyepiece.
Lens or system of lenses meant to magnify the image when placed before the eye.
Emitted by a celestial body, it crosses the main tube and is sent back by the concave primary mirror; the secondary mirror intercepts it and directs it toward the eyepiece.
concave primary mirror
Mirror that collects light and whose shape makes it possible to direct it toward the secondary mirror.
Mirror that collects light and directs it toward the eyepiece.
The barrel of the telescope through which light rays travel; houses the optical system.
English French Visual Dictionary
Free Online Dictionary
Powered by ikonet.com
© QA INTERNATIONAL 2017