# US 11,906,755 B2 · Long-range optical device with an opto-electronic display

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- Number: US 11,906,755 B2
- Document ID: US11906755B2
- Status: Granted
- Kind: B2
- Application number: 17/961,327
- Filed: 2022-10-06
- Published: 2023-02-09
- Granted: 2024-02-20
- Earliest claimed: 2016-07-22
- Assignees: Swarovski-Optik KG.
- Applicants: Swarovski-Optik AG & Co KG.
- Inventors: Mario Dohr; Herbert Hermann; Thomas Salzburger; Wilfried Thaler; Rene Zangerl
- Web page: https://patentgrep.com/patent/US11906755B2

## CPC

- G02B 27/36: adjustable
- F41G 1/345: {for illuminating the sights}
- F41G 1/38: Telescopic sights specially adapted for smallarms or ordnance (telescopic sights in general G02B); Supports or mountings therefor {(Means for mounting sighting or aiming devices on firearms F41G11/001)}
- F41G 3/06: with rangefinder (rangefinders per se G01C)
- G01C 3/04: Adaptation of rangefinders for combination with telescopes or binoculars
- G02B 7/023: {permitting adjustment}
- G02B 23/105: {Sighting devices with light source and collimating reflector (reflecting sights for small arms having light source F41G1/34)}
- G02B 23/14: Viewfinders (for photographic apparatus G03B13/02)
- G02B 23/145: {Zoom viewfinders}
- G02B 23/16: Housings; Caps; Mountings; Supports, e.g. with counterweight
- G02B 27/34: illuminated
- G09G 3/36: using liquid crystals
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- F41G: WEAPON SIGHTS; AIMING (optical aspects thereof G02B)
- G01C: MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY (measuring liquid level G01F; radio navigation, determining distance or velocity by use of propagation effects, e.g. Doppler effects, propagation time, of radio waves, analogous arrangements using other waves G01S)
- G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00)

## Abstract

The technology relates to a long-range optical device for a firearm with an objective and an eyepiece, through which an observation beam path is formed for aiming at a target, the long-range optical device further comprising an opto-electronic display device, wherein the display device comprises an LCoS display for displaying variable data or a target mark, wherein a display beam path of the display device runs at least partly in the observation beam path for displaying the remote object.

## Claims

### Claim 1

A long-range optical device comprising:
an objective with a front objective lens system and a rear objective lens system, a lens reversing system and an eyepiece, through which an observation beam path is formed and a graticule for aiming at a target;
the objective includes an objective housing having a joint,
wherein the joint comprises an articular cavity and a lens tube pivotably mounted in the articular cavity,
wherein the front objective lens system is arranged at an object-side end of the lens tube and is pivotable with the lens tube,
wherein at an eyepiece-side end of the objective housing a linear guide is formed,
wherein the rear objective lens system is mounted in the linear guide and can be displaced parallel to a longitudinal extension of the device by a mechanically connected adjusting ring or a parallax button for focusing the observation beam path.

### Claim 2 (depends on 1)

The device as claimed in claim 1, wherein between an eyepiece-side end of the lens tube and a bearing housing a ball joint is formed.

### Claim 3 (depends on 2)

The device as claimed in claim 2, wherein the ball joint comprises bearing surfaces on the eyepiece-side end of the lens tube and bearing surfaces in the bearing housing, wherein the bearing surfaces are formed by ball areas and wherein the ball areas are aligned to be at least approximately perpendicular to an optical axis of the observation beam path.

### Claim 4 (depends on 3)

The device as claimed in claim 3, wherein bearing surfaces in an eyepiece-side area relative to a pivot point of the bearing housing have a first middle radius r1 relative to the optical axis of the observation beam path and a first ball radius R1 and bearing surfaces in an object-side area relative to the pivot point of the bearing housing have a second middle radius r2 relative to the optical axis of the observation beam path and a second ball radius R2 and a ratio between the second middle radius r2 and the second ball radius R2 is smaller than a ratio between the first middle radius r1 and the first ball radius R1.

### Claim 5 (depends on 2)

The device as claimed in claim 2, wherein a focal length of the front objective lens system is greater than a distance D of a pivot point of the bearing housing from the front objective lens system.

### Claim 6 (depends on 1)

The device as claimed in claim 1, comprising an opto-electronic display device for displaying variable data or a target mark, wherein a display beam path of the display device runs at least partly in the observation beam path for displaying a remote object, wherein the display device comprises an Liquid Crystal on Silicon (LCoS) display.

### Claim 7 (depends on 6)

The device as claimed in claim 6, wherein the display device comprises an illuminating prism and a display prism, wherein a section of a transition of the display beam path is localized into the observation beam path in the display prism.

### Claim 8 (depends on 7)

The device as claimed in claim 7, wherein the display prism is arranged between the lens reversing system and the eyepiece.

### Claim 9 (depends on 7)

The device as claimed in claim 7, wherein the display device comprises an illuminating prism and a display prism, and the device comprises a prism reversing system arranged between the objective and the eyepiece, wherein a section of a transition of the display beam path is localized into the observation beam path on a prism of the prism reversing system.

### Claim 10 (depends on 7)

The device as claimed in claim 7, wherein the illuminating prism and the display prism are joined together by adhesion.

### Claim 11 (depends on 7)

The device as claimed in claim 7, wherein between the illuminating prism and the LCoS display a wave plate is arranged, wherein the wave plate is formed by a λ/4 plate.

### Claim 12 (depends on 11)

The device as claimed in claim 11, wherein the LCoS display, and the wave plate and the wave plate and the illuminating prism are joined together respectively by adhesion.

### Claim 13 (depends on 6)

The device as claimed in claim 6, wherein it comprises a zoom sensor for detecting a value of a set enlargement.

### Claim 14 (depends on 13)

The device as claimed in claim 13, wherein the zoom sensor comprises a foil potentiometer and a trigger connected to a zoom adjusting ring.

### Claim 15 (depends on 6)

The device as claimed in claim 6, wherein the LCoS display is connected to a display control, wherein the display control comprises a Field Programmable Gate Array (FPGA).

### Claim 16 (depends on 1)

The device as claimed in claim 1, further comprising a rangefinder with a laser transmitter and a laser receiver.

### Claim 17 (depends on 1)

The device as claimed in claim 1, further comprising an inclination sensor.

### Claim 18 (depends on 1)

The device as claimed in claim 1, further comprising a main control unit with a ballistics computer.

### Claim 19 (depends on 18)

The device as claimed in claim 18, wherein the main control unit is designed for generating image information data for representing a variable graticule on a Liquid Crystal on Silicon (LCoS) display.
