DescriptionTelescope-schematic.svg	Schematic drawing demonstrating how a telescope works (Keplerian or astronomical telescope) Deutsch: Prinzipieller Strahlengang im Astronomischen Fernrohr. Das Objektiv (1) erzeugt vom Objekt (4) ein reelles, umgekehrtes Zwischenbild (5), das man mit einer "Lupe" (Okular 2) betrachtet. Das Auge (3) sieht ein winkelmäßig vergrößertes, virtuelles Bild (6) in scheinbar großer Entfernung (strichlierte Parallelstrahlen). English: Keplerian telescope, schematic
Date	9 July 2005
Source	Drawing created by myself as to test the drawing program of OpenOffice.org
Author	Michael Schmid
Permission (Reusing this file)	Michael Schmid put it under Creative Commons Attribution ShareAlike 2.0 Austria License.
Other versions	Image:Telescope-schematic.sxd, the original OpenOffice.org file.   This file has been superseded by Telescope-schematic-A.svg. It is recommended to use the other file. Please note that deleting superseded images requires consent.

English

(1) Objective lens (focal length ${\displaystyle f_{1}}$)

(2) Eyepiece (aka. ocular; focal length ${\displaystyle f_{2}}$)

(3) Eye

(4) Object (at a large distance)

(5) Real Image of the object at the focal plane of the objective lens (here, a film or CCD detector could be placed for photographing the object)

(6) Virtual Image of the object (as it appears to the eye)

(7) Tube

Deutsch

Strahlengang in einem astronomischen Fernrohr (Kepler'sches Fernrohr):

(1) Objektiv (Brennweite ${\displaystyle f_{1}}$)

(2) Okular (Brennweite ${\displaystyle f_{2}}$)

(3) Auge

(4) Objekt (in großer Entfernung)

(5) Reelles Zwischenbild in der Fokalebene des Objektivs (zum Fotografieren könnte hier der Film oder ein CCD-Chip platziert werden)

(6) Virtuelles Bild (das dem Auge erscheint)

(7) Fernrohrgehäuse

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