Long-range optical device with a graticule

Patent metadata

Field	Value
Publication number	US-10698229-B2
Application number	US-201715655559-A
Country	US
Kind code	B2
Filing date	Jul 20, 2017
Priority date	Jul 22, 2016
Publication date	Jun 30, 2020
Grant date	Jun 30, 2020

Abstract

The invention relates to a long-range optical device ( 1 ) with an observation beam path ( 8 ) and a graticule for aiming at a target, and with a laser rangefinder ( 15 ), wherein a transmitting beam path of a laser transmitter ( 16 ) runs at least partly in the observation beam path ( 8 ), and wherein in an objective housing ( 63 ) a joint is arranged and at least one lens of the objective ( 31 ) is mounted to be movable by means of the joint in the objective housing ( 63 ), and wherein the joint comprises a bearing housing ( 66 ) fixed in the objective housing ( 63 ) and a lens tube ( 64 ), and at an object-side end of the lens tube ( 64 ) a front objective lens system ( 61 ) of the objective ( 31 ) is arranged and an eyepiece side end of the lens tube ( 64 ) is mounted pivotably in the bearing housing ( 66 ).

First claim

The invention claimed is:

1. A long-range optical device comprising:
an objective, a lens reversing system and an eyepiece, through which an observation beam path is formed and a graticule for aiming at a target; and a laser rangefinder having a laser transmitter, wherein a transmitting beam path of the laser transmitter runs at least partly in the observation beam path,
the objective includes an objective housing having a joint,
wherein the joint comprises a bearing housing fixed in the objective housing and a lens tube pivotably mounted in the bearing housing,
wherein an articular cavity is formed in an object-side end of the bearing housing
wherein a front objective lens system of the objective is arranged at an object-side end of the lens tube and an eyepiece side end of the lens tube is mounted pivotably in the articular cavity of the bearing housing
wherein in an eyepiece side end of the bearing housing a linear guide is formed and in the linear guide a rear objective lens system of the objective is mounted,
wherein the rear objective lens system 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.

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

3. 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.

4. 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 r 1 relative to the optical axis of the observation beam path and a first ball radius R 1 and bearing surfaces in an object-side area relative to the pivot point of the bearing housing have a second middle radius r 2 relative to the optical axis of the observation beam path and a second ball radius R 2 and a ratio between the second middle radius r 2 and the second ball radius R 2 is smaller than a ratio between the first middle radius r 1 and the first ball radius R 1 .

5. The device as claimed in claim 1 , wherein a focal length of the front objective lens system is greater than a distance D of the pivot point of the bearing housing from the front objective lens system.

6. 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 LCoS display.

7. 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.

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

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

10. The device as claimed in claim 6 , 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.

11. 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.

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

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

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

15. 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).

16. The device as claimed in claim 1 , wherein the laser rangefinder comprises a laser receiver.

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

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

19. 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 the LCoS display.

Assignees

• Swarovski Optik Kg

Inventors

• Dohr Mario
• Hermann Herbert
• Salzburger Thomas
• Thaler Wilfried
• Zangerl Rene

Classifications

• G02B27/36 Primary

  adjustable · CPC title

• G02B23/16

  Housings; Caps; Mountings; Supports, e.g. with counterweight · CPC title

• G02B23/14

  Viewfinders (for photographic apparatus G03B13/02) · CPC title

• G02B7/023

  permitting adjustment · CPC title

• F41G1/345

  for illuminating the sights · CPC title