Swarovski-optik Kg

Swarovski-optik Ag & Co Kg.

Albert Fiedler

Martin Kuhn

The invention relates to a telescope optics for a telescopic observational instrument having an objective lens, having a prism erecting system and having an eyepiece lens, wherein an image of an object generated by the objective lens is located between the prism erecting system and the eyepiece lens, and wherein the objective lens, in an order starting from the object side, comprises a first lens group Gwith a positive refractive power, a second lens group Gwith a negative refractive power and a third lens group G, and wherein the second lens group Gis adjustable in parallel to an optical axis for focusing, and wherein at least one lens with a negative refractive power of the third lens group Gis adjustable perpendicularly to the optical axis for changing the position of the image, and wherein the third lens group Ghas a negative refractive power.

Observation telescope

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&#xb0; at least for light of a wavelength of about 550 nm.

Far-optical device

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&#xb0; at least for light of a wavelength of about 550 nm.

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Absam, Austria

Albert Fiedler