Riflescope with Optical Aiming Corrector
US Patent Application No. 16/699,673 (pending)
Inventor: Dr. Omid Jahromi
Filing date: December 01, 2019
Abstract:
This invention discloses a riflescope wherein the point of aim is adjusted by a pair of partially-rotating wedge prisms. The prisms are positioned in front of the objective lens of the riflescope. The deviation axes of the prisms are oriented perpendicular to each other such that one deviates the light beam in the horizontal direction and the other in the vertical direction. It is shown, using the geometric properties of a tangent to a circle, that rotating each prism by a small amount can produce an approximately linear shift in the point of aim of the riflescope. The riflescope introduced in this invention has no laterally-moving parts, no turrets and no off-axis optical components. Therefore, it provides a very robust and reliable point of aim. Additionally, the riflescope has a streamlined body which is aesthetically pleasing and easier to mount on the long receiver of magnum hunting rifles.Attachable Aiming Corrector for Gun Sights
US Patent No. 10,697,734
Inventor: Dr. Omid Jahromi
Grant date: June 30, 2020
Abstract:
This invention discloses a method for correcting the point of aim in riflescopes or other optical weapon sights. The point of aim is corrected by attaching one or more corrector wedge prisms in front of the riflescope. Each wedge prism shifts the point of aim by a predetermined amount such as 5 cm at 100 m or 10 cm at 100 m, etc. A shooter can zero-in his rifle by first firing a set of test shots to determine how far off the bullets hit from the desired point of impact. He then selects one or more wedge prisms supplied with the riflescope and attaches them to the front (objective side) of the riflescope. The wedge prisms shift the riflescope's point of aim and bring it in alignment with the rifle's point of impact.Riflescope with Attachable Aiming Corrector and Method for Using Same
US Patent No. 10,502,530
Inventor: Dr. Omid Jahromi
Grant date: December 10, 2019
Abstract:
This invention discloses a riflescope wherein the point of aim is adjusted by attaching one or more corrector wedge prisms in front of the objective. Each wedge prism shifts the point of aim by a predetermined amount such as 5 cm at 100 m or 10 cm at 100 m, etc. A shooter can zero-in his rifle by first firing a set of test shots to determine how far off the bullets hit from the desired point of impact. He then selects one or more wedge prisms supplied with the riflescope and attaches them to its front side. The wedge prisms correct the riflescope's point of aim and bring it in alignment with the the rifle's point of impact. The riflescope introduced in this invention has no moving parts, no turrets and no off-axis optical components. There is no possibility of it's point of aim shifting due to rifle's recoil force or other vibrations. Additionally, the riflescope has a streamlined body which is aesthetically pleasing and also suitable for adding auxiliary sights such as a reflector sight.Telescopic Gun Sight with Tilted Viewing Axis
US Patent No. 10,254,083
Inventor: Dr. Omid Jahromi
Grant date: April 09, 2019
Abstract:
A telescopic gun sight whose viewing axis is tilted with respect to the sight's main optical axis is disclosed. A refracting wedge prism is added to the optical layout of a telescopic sight after the eyepiece to tilt the viewing axis and provide an offset eyepoint. The tilted viewing axis provides better ergonomics when the telescopic sight is used in combination with other type of sights such as a reflex sight.Binocular Telescope with Controlled Parallax
US Patent No. 9,746,660
Inventor: Dr. Omid Jahromi
Grant date: August 29, 2017
Abstract:
This invention teaches a binocular telescope wherein wedge prisms are positioned in the optical path of each telescope to control the amount of perceived parallax between the left and the right images. In one embodiment, a pair of thin wedge prisms are positioned in front of the objective lenses to optically manipulate the real convergence angle of an object viewed through the binocular telescope. In a second embodiment, wedge prisms are positioned after the eyepiece lenses to manipulate the apparent convergence angle of an object viewed through the binocular telescope. Depending on the position and the orientation of the wedge prisms, the invention produces benefits such as better depth perception, increased field of view, and the possibility to view close objects.Telescopic Gun Sight with Tilting Optical Adjustment Mechanism
US Patent No. 9,644,920
Inventor: Dr. Omid Jahromi
Grant date: May 09, 2017
Abstract:
A precision optical mechanism for adjusting the point of aim in telescopic gun sights is provided. A pair of thin wedge prisms are placed in the optical path of a telescopic gun sight such that they can tilt around an axis perpendicular to the optical axis of the sight. The sight's point of aim is adjusted by tilting the prisms.Combination Gun Sight with Single Eyepoint
US Patent No. 9,435,611
Inventor: Dr. Omid Jahromi
Grant date: September 06, 2016
Abstract:
This invention describes an ergonomic combination sight for small arms. According to one embodiment, the combination sight comprises a reflector sight mounted on top of a telescopic sight. A refracting wedge prism is included in the optical layout of the telescopic sight to tilt the viewing axis of the telescopic sight towards the viewing axis of the reflector sight. This feature provides better ergonomics since a shooter can aim through the reflector sight or the telescopic sight using the same head position.Telescopic Gun Sight with Offset Eyepoint
US Patent No. 9,417,037
Inventor: Dr. Omid Jahromi
Grant date: August 16, 2016
Abstract:
This invention teaches a weapon sight whose eyepoint is offset with respect to the sight's main optical axis. A refracting wedge prism is added to the optical layout of a telescopic sight to tilt the viewing axis and provide an offset eyepoint. The invention has several advantages including better ergonomics when used in combination with other type of sights such as open sights or reflex sights.Telescopic Gun Sight with Ballistic Zoom
US Patent No. 9,383,166
Inventor: Dr. Omid Jahromi
Grant date: July 05, 2016
Abstract:
This invention teaches a telescopic gun sight wherein the sight's magnification and point of aim can be adjusted simultaneously using the zoom knob. Once the sight is zeroed-in at a set distance, say 100 yards, it will automatically compensate for bullet drop at longer distances as magnification is increased.Telescopic Gun Sight with Rotating Optical Adjustment Mechanism
US Patent No. 9,164,269
Inventor: Dr. Omid Jahromi
Grant date: October 20, 2015
Abstract:
This invention teaches an optical method for adjusting the point of aim in telescopic gun sights. In one embodiment, a pair of prisms are placed behind the objective lens of a telescopic gun sight such that they can be rotated in a plane perpendicular to the optical axis. The sight's point of aim is adjusted by rotating the two prisms in opposite direction.Telescopic Gun Sight with Linear Optical Adjustment Mechanism
US Patent No. 8,749,887
Inventor: Dr. Omid Jahromi
Grant date: June 10, 2014
Abstract:
Telescopic sights commonly include a reticle which is laterally moved to adjust for the point of aim. In this invention, a prismatic device is used to move the image of the target on the reticle. In one embodiment, a pair of prisms are placed in the optical path of a telescopic sight such that at least one prism is movable along the optical axis. The point of aim is adjusted by adjusting the distance between the two prisms. By replacing the lateral movement of the reticle with the longitudinal movement of a prism, this invention eliminates several drawbacks associated with the prior art including limitations in the adjustment range.Telescopic Gun Sight Free of Parallax Error
US Patent No. 8,749,884
Inventor: Dr. Omid Jahromi
Grant date: June 10, 2014
Abstract:
A telescopic gun sight free of parallax error is introduced which can accurately display a weapon's point of aim independent of the position of the shooter's eye. Additionally, the telescopic gun sight provides a wide viewing angle and a long, comfortable eye-relief.Last update: November 15, 2020