Rangefinder For A Telescope
AssigneeSwarovski-Optik KG.
InventorsRene Zangerl, Lukas Klingenschmid
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Abstract
The invention relates to a rangefinder for a telescope having a transmitter and a transmission beam path and having a first receiver and a first receiver beam path, wherein the first receiver beam path extends at least partially in a first observation beam path of the telescope. The rangefinder additionally comprises a second receiver with a second receiver beam path which is aligned in parallel to the first transmission beam path, and which is arranged at a distance from the first observation beam path of the telescope.
Claims19
An electro-optical rangefinder for a telescope having a transmitter and a transmission beam path and having a first receiver and a first receiver beam path, wherein the first receiver beam path extends at least partially in a first observation beam path of the telescope, characterized in that a second receiver with a second receiver beam path, which is aligned at least approximately in parallel to the transmission beam path, is formed, wherein the second receiver beam path is arranged at a distance from the first observation beam path of the telescope.
A method for measuring the distance of an object using an electro-optical rangefinder, wherein radiation is emitted by a transmitter and the radiation is directed onto the object by a transmission beam path, and wherein radiation reflected by the object is detected by a first receiver, and wherein a temporally changeable intensity course of the reflected radiation IR1(t) detected by the first receiver is recorded, and wherein the distance of the object is calculated from a run time of the radiation from the transmitter to the first receiver, wherein radiation reflected by the object is detected by a second receiver and a temporally changeable intensity course of the reflected radiation IR2(t) detected by the second receiver is recorded, wherein digital values of the first intensity course IR1(t1n) are generated from the first intensity course IR1(t) by a first ADC at points in time t1n determined by a clock signal, and wherein digital values of the second intensity course IR2(t2n) are generated from the second intensity course IR2(t) by the second ADC at points in time t2n determined by the clock signal, wherein the points in time t2n are phase-shifted by a time difference Δt as compared to the points in time t1n, wherein the time difference Δt is composed of a system-caused part Δts and a variable part Δtv.
The method for measuring the distance of an object using an electro-optical rangefinder, wherein radiation is emitted by a transmitter and the radiation is directed onto the object by a transmission beam path, and wherein radiation reflected by the object is detected by a first receiver, and wherein a temporally changeable intensity course of the reflected radiation IR1(t) detected by the first receiver is recorded, and wherein the distance of the object is calculated from a run time of the radiation from the transmitter to the first receiver, wherein radiation reflected by the object is detected by a second receiver and a temporally changeable intensity course of the reflected radiation IR2(t) detected by the second receiver is recorded, wherein measurement signals from the first receiver are phase-shifted by a variable time difference Δtv relative to measurement signals from the second receiver by a phase shifter.
Dependencies are inferred from the claim text.