Far-Optical Device

Abstract

A far-optical device comprising a reversal system and an adjustable optical magnification means with more than fourfold magnification, wherein the far-optical device has an optical beam deflection means which at all magnifications ensures a subjective field of view of the far-optical device of at least 22° at least for light of a wavelength of about 550 nm.

1 . (canceled) 
     
     
         2 . A far-optical device comprising a reversal system with an adjustable optical magnification means and having a zoom greater than four times. 
     
     
         3 . The far-optical device according to  claim 2 , further comprising an optical beam deflection means disposed on an eyepiece facing side of the reversal system, such that at all magnifications of the reversal system a subjective field of view of the far-optical device is at least 22°. 
     
     
         4 . The far-optical device according to  claim 2 , further comprising an optical beam deflection means disposed on an eyepiece facing side of the reversal system, and wherein the adjustable optical magnification means or the optical beam deflection means is integrated into the reversal system, or the adjustable optical magnification means and the optical beam deflection means are integrated into the reversal system. 
     
     
         5 . The far-optical device according to  claim 2 , wherein the zoom is at least five times. 
     
     
         6 . The far-optical device according to  claim 2 , wherein the adjustable optical magnification means of the reversal system has a zoom of at least five times. 
     
     
         7 . The far-optical device according to  claim 2 , wherein the reversal system has at least two optical elements movable relative to each other. 
     
     
         8 . The far-optical device according to  claim 7 , wherein the optical elements which are movable relative to each other have lens arrangements. 
     
     
         9 . The far-optical device according to  claim 2 , further comprising:
 an optical beam deflection means disposed on an eyepiece facing side of the reversal system;   at least one objective; and   at least one eyepiece,   wherein the optical beam deflection means is arranged between the eyepiece facing side of the reversal system and the eyepiece.   
     
     
         10 . The far-optical device according to  claim 9 , wherein the optical beam deflection means is fixedly arranged on the eyepiece facing side of the reversal system. 
     
     
         11 . The far-optical device according to  claim 9 , wherein the optical beam deflection means is arranged on a side, which faces away from the eyepiece, of an eyepiece-side image plane of the far-optical device. 
     
     
         12 . The far-optical device according to  claim 2 , further comprising an optical beam deflection means disposed on an eyepiece facing side of the reversal system, and wherein the optical beam deflection means has lenses which are glued together. 
     
     
         13 . The far-optical device according to  claim 2 , further comprising an optical beam deflection means disposed on an eyepiece facing side of the reversal system, and wherein the optical beam deflection means has two lenses which are glued together. 
     
     
         14 . The far-optical device according to  claim 2 , further comprising an optical beam deflection means disposed on an eyepiece facing side of the reversal system, and wherein the optical beam deflection means has a refractive power of between −20 dpt and −40 dpt. 
     
     
         15 . The far-optical device according to  claim 2 , further comprising:
 at least one objective;   at least one eyepiece; and   at least one central tube arranged between the at least one objective and the at least one eyepiece,   wherein the at least one central tube includes the reversal system and has a maximum outside diameter of 35 mm.   
     
     
         16 . The far-optical device according to  claim 2 , further comprising:
 at least one objective;   at least one eyepiece; and   at least one central tube arranged between the at least one objective and the at least one eyepiece,   wherein the at least one central tube includes the reversal system and has a maximum outside diameter of 35 mm over its entire extent.   
     
     
         17 . The far-optical device according to  claim 2 , further comprising an optical beam deflection means disposed on an eyepiece facing side of the reversal system, and wherein the optical beam deflection means is configured such that at a maximum magnification of the reversal system a total focal length for the reversal system is at most 11 mm at least for light of a wavelength of about 550 nm. 
     
     
         18 . The far-optical device according to  claim 17 , wherein the optical beam deflection means is configured such that at the maximum magnification of the reversal system a total focal length for the reversal system is between 11 mm and 7 mm. 
     
     
         19 . The far-optical device according to  claim 2 , wherein the far-optical device is a telescope or an aiming telescope. 
     
     
         20 . The far-optical device according to  claim 2 , wherein at all magnifications of the reversal system a subjective field of view of the far-optical device is between 22° and 24° at least for light of a wavelength of about 550 nm. 
     
     
         21 . The far-optical device according to  claim 2 , wherein the reversal system includes first and second lenses movable along control grooves. 
     
     
         22 . The far-optical device according to  claim 2 , further comprising an optical beam deflection means disposed on an eyepiece facing side of the reversal system such that at a maximum magnification of the reversal system a total focal length for the reversal system is at most 11 mm. 
     
     
         23 . The far-optical device according to  claim 22 , wherein at the maximum magnification the total focal length for the reversal system is between 11 mm and 7 mm. 
     
     
         24 . The far-optical device according to  claim 22 , wherein the zoom is at least five times. 
     
     
         25 . The far-optical device according to  claim 22 , wherein the adjustable optical magnification means of the reversal system has a zoom of at least five times. 
     
     
         26 . The far-optical device according to  claim 22 , wherein the far-optical device is a telescope or an aiming telescope.