Look up an image:
Explore by theme parure et objets personnels

cross section of a reflecting telescope click to hear : cross section of a reflecting telescope

Magnification depends on the length of the main tube and the power of the eyepiece.
cross section of a reflecting telescope image
achat d'image achat d'image

See cross section of a reflecting telescope in : french | spanish
eyepiece light concave primary mirror secondary mirror main tube

eyepiece click to hear : eyepiece

Lens or system of lenses meant to magnify the image when placed before the eye.

light click to hear : light

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 click to hear : concave primary mirror

Mirror that collects light and whose shape makes it possible to direct it toward the secondary mirror.

secondary mirror click to hear : secondary mirror

Mirror that collects light and directs it toward the eyepiece.

main tube click to hear : main tube

The barrel of the telescope through which light rays travel; houses the optical system.