US3711204A - Optical sight aligner - Google Patents

Optical sight aligner Download PDF

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Publication number
US3711204A
US3711204A US00187023A US3711204DA US3711204A US 3711204 A US3711204 A US 3711204A US 00187023 A US00187023 A US 00187023A US 3711204D A US3711204D A US 3711204DA US 3711204 A US3711204 A US 3711204A
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US
United States
Prior art keywords
axis
aiming
gun
optical
aiming point
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Expired - Lifetime
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US00187023A
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English (en)
Inventor
W Steck
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WEAVER CO W
WEAVER W CO US
Oregon Tool Inc
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WEAVER CO W
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Assigned to OMARK INDUSTRIES, INC., 5550 S.W. MACADAM AVENUE, PORTLAND, 97201 reassignment OMARK INDUSTRIES, INC., 5550 S.W. MACADAM AVENUE, PORTLAND, 97201 ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: W.R. WEAVER COMPANY
Assigned to BLOUNT, INC. reassignment BLOUNT, INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: OMARK INDUSTRIES, INC., A CORP. OF OR
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/14—Viewfinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41G—WEAPON SIGHTS; AIMING
    • F41G1/00—Sighting devices
    • F41G1/54—Devices for testing or checking ; Tools for adjustment of sights
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41G—WEAPON SIGHTS; AIMING
    • F41G3/00—Aiming or laying means
    • F41G3/32—Devices for testing or checking
    • F41G3/323—Devices for testing or checking for checking the angle between the muzzle axis of the gun and a reference axis, e.g. the axis of the associated sighting device

Definitions

  • a device for aligning the aiming point of a sight with the axis of a gun barrel includes a housing containing two aiming points which are capable of being made coincidental. Collimating means is focussed on one of the aiming points of the device, and image inverting and reverting optical means is focussed on the other of the aiming points. Means is provided for mounting the device on the muzzle of a gun so as to permit universal pivotal movement of the device with respect to the gun and so that the bore of the gun barrel can be viewed through the inverting reverting optical means through the gun muzzle.
  • the device is made immobile with respect to the gun, and the collimated aiming point of the device is viewed through the sight.
  • the aiming point of the sight is then made coincidental with the collimated aiming point of the device so as to become aligned with the gun barrel axis.
  • This invention relates to a device for optically bore sighting a telescopic sighting device mounted on a firearm.
  • Such conventional scope bore sighting devices generally include a plug or arbor which is inserted into the firearm muzzle for snug engagement with the barrel bore.
  • a bracket is mounted on the arbor and a collimator having an aiming point is secured to the bracket.
  • the optical axis of the collimator and the arbor axis are constructed so that when assembled, the axis will converge at infinity, which for sighting purposes is considered to be about one hundred yards from the device. Since the arbor axis when inserted into the barrel bore is coincidental with the barrel bore axis, the collimator optical axis is similarly convergent with the barrel bore axis.
  • This conventional type of scope bore sighter has several disadvantages in its usage. It requires a variety of arbor sizes, all of which must be made interchangeable to compensate for caliber variations of firearm bores, or an arbor the size of which can be varied. It must be carefully handled so as to ensure that the preset axis relationship is not disturbed. Furthermore, it is not generally adaptable for use with full bore or choked shotguns.
  • the device of this invention is designed for universal usage with all caliber firearms, and full bore or any size choked shotguns. Any change in factory alignment or calibration of its principal axes can be easily corrected in the field and the device can be recalibrated.
  • the preferred embodiment of the device includes a first tubular housing in which spaced apart lenses are mounted, each lens being focussed on a reticle forming a first aiming point between the lenses. The lenses are such that an image viewed through the device is inverted and reverted.
  • a cone-shaped positioning member is positioned at one end of the first tubular housing for insertion into the muzzle of the firearm so that the barrel bore of the firearm can be viewed through the inverting and reverting lenses.
  • the conical shape of the positioning member permits the viewer to move the housing universally with respect to the muzzle. It has been found that misalignment of the barrel bore axis and the optical axis of the inverting reverting lenses will appear to the viewer to be on the order of twice what it actually is or what it appears to be when viewed through an optical system which produces an erect image. The apparent magnification of axial misalignment is caused by the inversion and reversion of the viewed image. Thus the viewer can readily align the axis of the lenses with the axis of the barrel bore visually by pivoting the device until the alignment is apparent. Once such alignment is accomplished the device is immobilized with respect to the firearm.
  • the device also includes a second tubular housing which is secured to the first housing and which contains a collimating lens and a reticle forming a second aiming point.
  • the reticle is mounted in a pivoting tube within the second tubular housing and is laterally movable by means of adjustment screws similar to windage and elevational adjustments on conventional scopes.
  • the second aiming point is illuminated by ambient light passing through a translucent end cap on the second housing.
  • the collimating lens and second aiming point form an axis which can be made to converge with the optical axis of the inverting reverting lenses by aligning the two aiming points of the device with the same target, at one hundred yards, for example.
  • This alignment or calibration of the aiming points can be initially accomplished at the factory, and can be checked and corrected, if necessary, in the field. Once the prealignment is accomplished, and the device is made coaxial with the barrel bore, in the manner described above, one merely sights in on the collimated aiming point of the device through the scope and aligns the scope reticle with the collimated aiming point image. The scope is then bore sighted and the device is removed from the firearm.
  • FIG. I is a vertical sectional view of a preferred embodiment of a device formed in accordance with this invention.
  • FIG. 2 is a side view of the device of FIG. 1 shown mounted on the muzzle ofa rifle for use in bore sighting a scope mounted on the rifle;
  • FIG. 3 is a schematic view of the device of FIG. 1 showing the manner in which the device is calibrated.
  • FIG. 4 is a schematic view of the device of FIG. 1 showing the manner in which the device is axially aligned with the gun barrel bore and the scope is sighted in on the barrel axis.
  • the device includes a first tubular housing member 2 and a second tubular housing member 4.
  • the housings 2 and 4 are secured together by a bracket 6, a plurality of set screws 8 being used to secure the bracket 6 to the housing 2, and a plurality of set screws 10 being used to secure the bracket 6 to the housing 4.
  • a reticle member formed from a pair of intersecting cross hairs 12 is mounted in a ring 14 within the first housing member 2 and secured thereto by means of screws 16.
  • the point of intersection of the cross hairs 12 forms a first aiming point 12' within the first housing member 2.
  • a first compound lens 18 which is held in place by a retainer ring 20 threaded into the end of the housing member 2.
  • the lens 18 is focussed on the aiming point 12.
  • a second compound lens 22 held into position by a retainer ring 24 threaded into the left hand end portion of the tubular housing member 2, the lens 22 being also focussed on the aiming point 12'.
  • a positioning member 26 is also threaded into the left hand portion of the housing member 2, the positioning member 26 including an external conical surface 28, the purpose of which will be explained in greater detail hereinafter.
  • the positioning member 26 includes a through bore 30 so that one may look through either end of the first tubular housing 2 and see the aiming point 12 and also see a field of view through the other end of the housing member 2.
  • the lenses 18 and 22 are of a type which will produce an inverted-reverted image of a field of view to the eye of the viewer. It will be readily apparent to those skilled in the art that such an inverted-reverted image could also be produced by prismatic means as well as lenses without departing from the spirit of this invention.
  • a collimating lens 32 is positioned in the left hand end portion of the second tubular housing member 4 and is held in place by a retainer ring 34 which is threaded into the left hand end portion of the housing member 4, as viewed in FIG. 1.
  • a cap member 36 of a translucent light transmitting material is fitted onto the right hand end portion of the second tubular housing member 4.
  • a reticle tube 38 is positioned inside of the second tubular housing member 4, the reticle tube having a flared end portion 40 forming a universal pivot for the tube 38 within the housing member 4.
  • a spring 42 is sandwiched between the reticle tube 38 and the tube housing member 4 to bias the reticle tube 38 for pivoting movement about its flared end portion 40.
  • a threaded vertical adjusting member 44 contacts the reticle tube 38 at a point spaced apart from the flared pivot 40 and is operative to move the reticle tube 38 laterally and pivotally against the bias of the spring 42, thus the adjustment member 44 can be operated to cause vertical lateral movement of the tube 38.
  • a similar member (not shown) is mounted on the tube 4 to cause horizontal lateral pivotal movement of the reticle tube 38.
  • a reticle comprising a pair of intersecting cross hairs 46 is mounted in the end of the reticle tube 38 opposite from the flared pivot 40, the point of intersection of the cross hairs 46 forming a second aiming point 46' within the second tubular housing member 4.
  • the collimating lens 32 is focussed on the aiming point 46 so as to produce a collimated image of the aiming point 46.
  • the translucent cap 36 provides a bright background for the reticle cross hairs 46 by transmission of ambient light.
  • FIG. 2 the device of FIG. 1 is shown mounted on a rifle identified generally by the numeral 48.
  • the rifle includes a barrel 50 and has mounted thereon a telescopic gun sight 52.
  • a collar 54 is mounted on the rifle barrel 50, the collar 54 being connected to a ball and socket joint 56.
  • a wing nut 58 is mounted on the ball and socket joint 56 to tighten and loosen the latter to permit universal movement of the ball within the socket when desired and further upon being tightened to lock the ball within the socket.
  • a lever arm 60 is secured to the ball portion of the ball and socket joint 56 and is movable therewith.
  • a connector 62 is secured to the lever arm 60 and also to the bracket 6.
  • the conical external surface 28 of the positioning member 26 is inserted into the muzzle end of the rifle barrel 50 and provides a universal connection between the device and the rifle barrel so that the device may be universally pivoted with respect to the rifle barrel muzzle.
  • the ball and socket joint 56 is loosened by loosening the wing nut 58, universal pivoting movement of the device may be imparted thereto and will be permitted by the loose connection of the ball portion of the ball and socket joint 56 and the lever arm 60.
  • the wing nut 58 is tightened to immobilize the ball and socket joint 56 and thus operate through the lever arm 60 and connector 62 to immobilize the device in the properly adjusted position.
  • FIGS. 3 and 4 the manner in which the device is calibrated and used to sight in the telescopic sight is shown.
  • the device In order to calibrate the device, it is first secured to a supporting member S and properly positioned so that the viewers eye, when in the position 64 looking through the first housing member 2, sees the first aiming point 12 centered on a target 68. When this condition is met it is apparent that the optical axis 66 of lenses 18 and 22 will pass through the center of the target 68. The eye of the viewer is then moved to the position 66 to view the target 68 through the second housing member 4.
  • the collimating lens 32 and the second aiming point 46 form a second' axis 70 termed the aiming axis of the device.
  • the reticle tube 38 is pivoted by means of the adjustments so as to place the second aiming point 46, as viewed through the collimating lens 32, into alignment with the target 68.
  • the aiming axis 70 will converge on the optical axis 66 and intersect the latter at the target 68.
  • the device is calibrated and ready to use to boresight a telescopic sight mounted on a firearm. It is preferred when mak ing the calibrating adjustments, which may be made at the factory or in the field, that the target 68 be positioned approximately l00 yards from the device.
  • the second aiming point 46' may remove the transluscent cap 36 so that the target can be viewed directly through the second housing member 4, or one may use a conventional beam spliting device which superimposes the image of the second aiming point 46' over the image of the first aiming point 12. Still further, one could look through both tubes 2 and 4 at the same time with different eyes and use his own inherent binocular visual ability to superimpose the two images of the aiming points 46 and 12'. This latter-most method is not preferred, however, since the phenomenon of exophoria can introduce error.
  • the device is ready for use in sighting-in a scope.
  • the sighting-in is accomplished by inserting the positioning member 26 into the muzzle of the firearm barrel 50 as shown in FIG. 4.
  • the viewer's eye is then moved to position 64" so that the barrel bore is viewed through the lenses 18 and 22.
  • the eye in the position 64" sees an inverted-reverted image of the barrel bore.
  • This invertedreverted image causes any misalignment of the optical axis 66 and the barrel bore axis 72 to appear to be double what the actual misalignment is.
  • magnification of the actual misalignment permits simple visual correction thereof by pivoting the device about the positioning member 26 until the optical axis 66 appears to be coincidental with the barrel bore axis 72. Once this condition is observed the device is locked onto the end of the barrel by tightening the wing nut 58. The eye of the viewer is then moved to the position 64" opposite the ocular end of the telescopic sight 52 so that the collimated image of the second aiming point 46 can be viewed through the scope 52.
  • the scope shown schematically in FIG. 4, uses an internal erector system 74 which is conventional and which is operative to shift the image viewed through the scope laterally to align the image with the reticle of the scope.
  • the image of the second aiming point 46' is shifted by movement of the scope erectors 74 until the second aiming point 46 is coincidental with the aiming point of the scope reticle, collimation of the second aiming point 46 enabling one to view the latter in sharp focus through the scope 52 during the alignment process.
  • the device of this invention has been successfully tested and has produced 4 inch shot groups at 100 yards.
  • the scope has been bore sighted with the device, further windage and elevation adjustments of a minor character can be easily made with conventional windage and elevation adjustment means provided on the scope.
  • the device of this invention has universal utility with guns of different caliber and full bore or choked shotguns.
  • the device is simple to calibrate, and can be re-calibrated in the field should the original calibration become disturbed for any reason.
  • the use of image inverting and reverting lenses to magnify axial misalignment makes the step of aligning the optical axis of the device and the barrel bore axis a simple visual operation which can be quickly accomplished.
  • the device can be easily and inexpensively manufactured since the lenses can be made of inexpensive optical plastic, and yet the device can be of rugged construction able to withstand shocks incident to normal handling.
  • image-inverting and reverting optical means providing an optical axis
  • c. means combining with said aiming point to provide an aiming axis for said device, said aiming point being disposed on said aiming axis, and said aiming 6 axis converging with said optical axis at a predetermined distance from said device;
  • positioning means for engaging the muzzle of a gun to position said optical means opposite the gun muzzle to provide for viewing an inverted reverted image of the gun barrel bore through said optical means, said positioning means providing for pivotal movement of said optical means with respect to the axis of the gun barrel bore to permit visual coaxial positioning of said optical axis and the gun barrel bore axis, whereby said aiming axis will converge with the gun barrel bore axis at said predetermined distance from said device.
  • a device attachable to a gun for producing an aiming point aligned with the axis of a gun barrel bore comprising:
  • image-inverting and reverting optical means providing a first optical axis
  • collimating means focussed on said aiming point to produce a collimated image thereof, said collimating means and said aiming point providing an aiming axis, and said aiming axis being disposed to converge with said first optical axis at a predetermined distance from said device;
  • positioning means for engaging the muzzle of a gun to position said optical means opposite the gun muzzle to provide for viewing of an inverted reverted image of the gun barrel bore through said optical means, said positioning means providing for substantially universal pivotal movement of said optical means with respect to the axis of the gun barrel bore to permit visual coaxial positioning of said first optical axis and. the gun barrel bore axis, whereby said aiming axis will converge with the gun barrel bore axis at said predetermined distance from said device.
  • a device attachable to a gun for producing an aiming point aligned with the axis of a gun barrel bore comprising:
  • image-inverting and reverting optical means focussed on said first aiming point, said optical means providing an optical axis intersecting said first aiming point;
  • e. means providing a second aiming point
  • collimating means focussed on said second aiming point to produce a collimated image thereof, said collimating means and said second aiming point providing an aiming axis;
  • positioning means for engaging the muzzle of a gun to position said optical means opposite the gun muzzle to permit viewing of an inverted reverted image of the gun barrel bore through said optical means, said positioning means permitting pivotal movement of said optical means with respect to the axis of the gun barrel bore to permit visual coaxial positioning of said optical axis and the gun barrel bore axis, whereby said aiming axis will converge with the gun barrel bore axis at said predetermined distance from said device.
  • a device attachable to a gun for producing an aiming point aligned with the axis ofa gun barrel bore comprising:
  • second tubular housing means secured to said first housing means
  • positioning means carried by said first housing means for engaging the muzzle of a gun to position said optical means opposite the gun muzzle to provide for viewing an inverted reverted image of the gun barrel bore through said optical means, said positioning means providing for pivotal movement of said optical means with respect to the axis of the gun barrel bore to permit visual coaxial positioning of said optical axis and the gun barrel bore axis, whereby said aiming axis will converge with the gun barrel bore axis at said predetermined distance from said device.
  • optical means comprises first and second lenses positioned at opposite ends of said first housing means.
  • the device of claim 5 further comprising vreticle means in said first housing means, said first and second lenses both being focused upon said reticle means.
  • aiming axis is formed by collimating means combining with said aiming point, said collimating means being carried by said second housing means and focussed upon said aiming point to produce a collimated image thereof.
  • the device of claim 4 further comprising joint means connected to said device and adapted for connection to the gun, said joint means having a loose condition wherein said pivotal movement of said optical axis of said device is permitted, and a tightened condition wherein said device is immobilized with respect to the gun; and means associated with said joint means for imparting said' loose and tightened conditions to said joint means.
  • said aiming point is formed by a reticle, and further comprising means mounted in said second housing and connected to said reticle to shift said reticle and said aiming point laterally within said second housing to vary the point of convergence of said aiming axis with said optical axis.

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Telescopes (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
US00187023A 1971-10-06 1971-10-06 Optical sight aligner Expired - Lifetime US3711204A (en)

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US18702371A 1971-10-06 1971-10-06

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US (1) US3711204A (it)
JP (1) JPS5222246B2 (it)
AU (1) AU4419972A (it)
CA (1) CA953491A (it)
DE (1) DE2239661A1 (it)
GB (1) GB1333699A (it)
IT (1) IT962317B (it)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3782832A (en) * 1973-04-12 1974-01-01 Us Army Method of boresight alignment of a weapon
US3787693A (en) * 1972-12-14 1974-01-22 Us Army Boresight alignment device
JPS49122198A (it) * 1973-03-29 1974-11-21
US3915552A (en) * 1972-02-08 1975-10-28 Glenn E Rickert Compact reflex sight
US3991500A (en) * 1975-08-22 1976-11-16 The United States Of America As Represented By The Secretary Of The Army Firearm sight with dialable range control
US4381150A (en) * 1981-03-27 1983-04-26 The United States Of America As Represented By The Scretary Of The Army Laser beam pointing aid
US4530162A (en) * 1983-08-08 1985-07-23 Robert S. Forrest Apparatus and method for boresighting a firearm
US4825258A (en) * 1988-01-04 1989-04-25 Whitson John M Device for bore alignment of gun sights
US4879814A (en) * 1987-08-28 1989-11-14 Texas Instruments Incorporated Method and apparatus for boresight alignment of armored battlefield weapons
US5222302A (en) * 1991-05-10 1993-06-29 Debatty W Marion Firearm sights aligner
FR2737001A1 (fr) * 1995-07-20 1997-01-24 Giat Ind Sa Dispositif de stabilisation pour arme a feu individuelle
US6176019B1 (en) * 1998-07-24 2001-01-23 Walter F. Frear, Jr. Collimator mounting apparatus for bore sighting a firearm
WO2001016548A1 (en) * 1999-08-31 2001-03-08 Fire Point (Uk) Limited Magnetic lightweight collimator
US6499247B1 (en) * 2001-07-27 2002-12-31 Stoney Point Products, Inc. Laser bore-sight scope and mount for riffles
US20040108476A1 (en) * 2002-12-06 2004-06-10 Ultra-Scan Corporation Method for optimizing performance of optical encoders operating in a fluid
US20120117849A1 (en) * 2010-11-17 2012-05-17 Thomas Mark A Magnetic boresighter
US8739677B1 (en) * 2011-12-05 2014-06-03 The United States Of America As Represented By The Secretary Of The Navy Boresight verification device
US20160313090A1 (en) * 2013-03-22 2016-10-27 Orchard Arms Llc Integral telescopic sight for firearms
CN113686549A (zh) * 2021-08-04 2021-11-23 孝感华中精密仪器有限公司 一种双目显微镜检测装置及方法
CN116086240A (zh) * 2023-02-15 2023-05-09 北京机械设备研究所 一种火炮光电瞄射轴线及倾角标校装置

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0722293U (ja) * 1993-06-25 1995-04-21 ライオン光機有限会社 照準器の規正装置取付方法
RU2124174C1 (ru) * 1997-11-10 1998-12-27 Передков Сергей Васильевич Способ контроля положения и выверки спаренного пулемета в танке и устройство для его реализации
RU2262650C1 (ru) * 2004-02-18 2005-10-20 Федеральное Государственное Унитарное предприятие "Конструкторское бюро "Аметист" Трубка холодной пристрелки
RU2379612C1 (ru) * 2008-05-12 2010-01-20 Государственное унитарное предприятие "Конструкторское бюро приборостроения" Способ совмещения оптических осей перекрестий сетки диоптрийной трубки и прицельной марки прицела

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190817371A (en) * 1908-08-18 1909-08-12 William Albert Burns An Improved Method of and Means for Testing the Accuracy of the Sighting Apparatus of Ordnance.
US962175A (en) * 1910-02-03 1910-06-21 Zeiss Carl Fa Testing appliance.
US2696052A (en) * 1953-07-06 1954-12-07 Wollensak Optical Co Radar boresight
US2819527A (en) * 1955-03-07 1958-01-14 Nelson E Spurling Gun boresight

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190817371A (en) * 1908-08-18 1909-08-12 William Albert Burns An Improved Method of and Means for Testing the Accuracy of the Sighting Apparatus of Ordnance.
US962175A (en) * 1910-02-03 1910-06-21 Zeiss Carl Fa Testing appliance.
US2696052A (en) * 1953-07-06 1954-12-07 Wollensak Optical Co Radar boresight
US2819527A (en) * 1955-03-07 1958-01-14 Nelson E Spurling Gun boresight

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3915552A (en) * 1972-02-08 1975-10-28 Glenn E Rickert Compact reflex sight
US3787693A (en) * 1972-12-14 1974-01-22 Us Army Boresight alignment device
JPS49122198A (it) * 1973-03-29 1974-11-21
US3782832A (en) * 1973-04-12 1974-01-01 Us Army Method of boresight alignment of a weapon
US3991500A (en) * 1975-08-22 1976-11-16 The United States Of America As Represented By The Secretary Of The Army Firearm sight with dialable range control
US4381150A (en) * 1981-03-27 1983-04-26 The United States Of America As Represented By The Scretary Of The Army Laser beam pointing aid
US4530162A (en) * 1983-08-08 1985-07-23 Robert S. Forrest Apparatus and method for boresighting a firearm
US4879814A (en) * 1987-08-28 1989-11-14 Texas Instruments Incorporated Method and apparatus for boresight alignment of armored battlefield weapons
US4825258A (en) * 1988-01-04 1989-04-25 Whitson John M Device for bore alignment of gun sights
US5222302A (en) * 1991-05-10 1993-06-29 Debatty W Marion Firearm sights aligner
US5834677A (en) * 1995-07-20 1998-11-10 Giat Industries Stabilizing device for a small fire arm
WO1997004282A1 (fr) * 1995-07-20 1997-02-06 Giat Industries Dispositif de stabilisation pour arme a feu individuelle
FR2737001A1 (fr) * 1995-07-20 1997-01-24 Giat Ind Sa Dispositif de stabilisation pour arme a feu individuelle
US6176019B1 (en) * 1998-07-24 2001-01-23 Walter F. Frear, Jr. Collimator mounting apparatus for bore sighting a firearm
WO2001016548A1 (en) * 1999-08-31 2001-03-08 Fire Point (Uk) Limited Magnetic lightweight collimator
US6499247B1 (en) * 2001-07-27 2002-12-31 Stoney Point Products, Inc. Laser bore-sight scope and mount for riffles
US6900428B2 (en) * 2002-12-06 2005-05-31 Ultra-Scan Corporation Method for optimizing performance of optical encoders operating in a fluid
US20040108476A1 (en) * 2002-12-06 2004-06-10 Ultra-Scan Corporation Method for optimizing performance of optical encoders operating in a fluid
US20120117849A1 (en) * 2010-11-17 2012-05-17 Thomas Mark A Magnetic boresighter
US8739677B1 (en) * 2011-12-05 2014-06-03 The United States Of America As Represented By The Secretary Of The Navy Boresight verification device
US20160313090A1 (en) * 2013-03-22 2016-10-27 Orchard Arms Llc Integral telescopic sight for firearms
CN113686549A (zh) * 2021-08-04 2021-11-23 孝感华中精密仪器有限公司 一种双目显微镜检测装置及方法
CN113686549B (zh) * 2021-08-04 2023-11-17 孝感华中精密仪器有限公司 一种双目显微镜检测装置及方法
CN116086240A (zh) * 2023-02-15 2023-05-09 北京机械设备研究所 一种火炮光电瞄射轴线及倾角标校装置

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Publication number Publication date
GB1333699A (en) 1973-10-10
JPS4845099A (it) 1973-06-28
CA953491A (en) 1974-08-27
AU4419972A (en) 1974-01-10
DE2239661A1 (de) 1973-04-19
JPS5222246B2 (it) 1977-06-16
IT962317B (it) 1973-12-20

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