Pointing Devices, Apparatus, Systems and Methods for High Shock Environments
20210320472 · 2021-10-14
Inventors
Cpc classification
F41G1/35
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F41G1/387
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F41G1/00
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F41G1/34
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F41G11/005
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
International classification
F41G1/00
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F41G1/34
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F41G1/35
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F41G1/387
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F41G11/00
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Abstract
Devices, apparatus, systems and methods for providing accurate linear and angular positioning with a payload mounted to a beam having freely moveable ends. The payload can be a laser pointer mounted on a firearm, which maintains the initial precise pointing during and after exposure in high G shock and vibration environments. Vertical and lateral adjustment controls can adjust minute changes in beam orientation. Precision adjustments can be performed in a zero G, one G, or high G environment and maintains the adjustment during and after being exposed to a high G shock or vibration environment.
Claims
1. A pointing support device for high shock environments, comprising: a housing having a base, a front stationary wall and a rear stationary wall, the front stationary wall with an opening; a one piece shaped beam comprising a cylindrical shaped first end rigidly mounted and fixed directly to the rear stationary wall, and a cylindrical shaped second end aligned with and adjacent to the opening in the front stationary wall, and a section intermediate the first end and the second end that has a parabolic shaped profile; a pointing payload rigidly and fixed attached to the second end of the one piece shaped beam, wherein the one piece shaped beam provides accurate linear and angular positioning of the payload and maintains initial precise pointing of the payload relative to the surface the pointing device is attached to during and after exposure of the housing to shock and vibration; and an externally accessible vertical and lateral adjustment mechanism comprising a vertical adjustment component and a lateral adjustment component, the adjustment mechanism directly coupled to the pointing payload for adjusting vertical and lateral position of the payload be deflecting the one piece shaped beam along vertical and lateral orientations.
2. The pointing support device of claim 1, wherein the one piece shaped beam is a hollow shaped beam.
3. The pointing support device of claim 1, wherein the one piece shaped beam is a solid non-cylindrical shaped beam.
4. The pointing support device of claim 1, wherein the pointing payload includes: a laser module mounted on a firearm.
5. The pointing device of claim 1, wherein the vertical adjustment component and the lateral adjustment component comprises: only one single rotatable vertical control and only one single rotatable lateral control rotatable from an exterior of the pointing support device for adjusting said vertical and lateral position of the payload without disassembly.
6. The pointing device of claim 5, wherein the only one single vertical adjustment component and the only one single lateral adjustment component comprises: a vertical cam control and a lateral cam control for adjusting said vertical and lateral position of the payload.
7. The pointing support device of claim 1, wherein the pointing payload is selected from one of a dual laser payload or a laser and detector payload.
8. The pointing support device of claim 1, wherein the pointing payload includes an optical mirror payload.
9. The pointing support device of claim of claim 5, wherein the only one single vertical adjustment component and the only one single lateral adjustment component comprises: only one single rotatable vertical control and only one single rotatable lateral control.
10. The pointing support device of claim 1, wherein the one piece shaped beam is fabricated of a material selected from a group consisting of metal, plastic, and composite.
11. A pointing support device for high shock environments, comprising: a housing having a base, a front stationary wall and a rear stationary wall, the front stationary wall with an opening; a one piece shaped beam comprising a cylindrical shaped first end rigidly mounted and fixed directly to the rear stationary wall, and a cylindrical shaped second end aligned with and adjacent to the opening in the front stationary wall, and a section intermediate the first end and the second end that has a parabolic shaped profile; a pointing payload rigidly attached to the second end of the one piece shaped beam, wherein the one piece shaped beam provides accurate linear and angular positioning of the payload and maintains initial precise pointing of the payload relative to a surface the pointing device is attached to during and after exposure of the housing to shock and vibration; and an externally accessible vertical and lateral adjustment mechanism comprising a vertical adjustment component and a lateral adjustment component, the adjustment mechanism directly coupled to the pointing payload for adjusting vertical and lateral position of the payload.
12. The pointing device of claim 11, wherein the pointing payload includes: a passive receiving elements selected from a group comprising either a television or electromagnetic spectrum detectors.
13. The pointing device of claim 11, wherein the pointing payload includes: a reflective element selected from a group comprising either optical or electromagnetic spectrum reflectors.
14. The pointing device of claim 11, wherein the vertical adjustment component and the lateral adjustment component comprises: only one single rotatable vertical control and only one single rotatable lateral control rotatable on an exterior of the pointing support device for adjusting vertical and later position of the payload without disassembly.
15. The pointing support device of claim 11, wherein the pointing payload includes: a laser module mounted on a firearm.
16. The pointing device of claim 11, wherein the vertical adjustment component and the lateral adjustment component comprises: only one vertical cam control and only one lateral cam control for adjusting vertical and lateral position of the payload.
17. The pointing support device of claim 11, wherein the pointing payload is selected from one of a dual laser payload or a laser and detector payload.
18. The pointing support device of claim 11, wherein the pointing payload includes an optical mirror payload.
19. The pointing support device of claim 11, wherein the non-cylindrical shaped beam is fabricated of a material selected from a group consisting of metal, plastic, and composite.
20. A pointing support device for high shock environments, comprising: a housing having a base, a front stationary wall and a rear stationary wall, the front stationary wall with an opening; a one piece shaped beam comprising a cylindrical shaped first end rigidly mounted and fixed directly to the rear stationary wall, and a cylindrical shaped second end aligned with and adjacent to the opening in the front stationary wall, and a section intermediate the first end and the second end that has a parabolic shaped profile; a pointing payload rigidly attached to the second end of the one piece shaped beam, wherein the one piece shaped beam provides accurate linear and angular positioning of the payload and maintains initial precise pointing of the payload relative to a surface the pointing device is attached to during and after exposure of the housing to shock and vibration; and an externally accessible vertical and lateral adjustment mechanism comprising a vertical adjustment component and a lateral adjustment component, the adjustment mechanism directly coupled to the pointing payload for adjusting vertical and lateral position of the payload.
Description
BRIEF DESCRIPTION OF THE FIGURES
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DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0088] Before explaining the disclosed embodiments of the present invention in detail it is to be understood that the invention is not limited in its applications to the details of the particular arrangements shown since the invention is capable of other embodiments. Also, the terminology used herein is for the purpose of description and not of limitation.
[0089] A listing of components will now be described.
TABLE-US-00001 1. laser system with conical cantilevered beam 10. base of housing 20. rear wall of housing 25. threaded opening for battery 30. support housing portions for adjustment controls 32. front top of housing 33. cover of housing 34. front side of housing 38. front wall of housing 39. cover mounting screws/washer 40. cantilevered conical beam 42. base wide end 43. fastener (nut) 48. narrow tip end 50. payload 52. laser housing 53. laser diode 56. lens 60. lateral adjustment control 61. o-ring for lateral adjustment 70. vertical adjustment control 71 o-ring for vertical adjustment 80. battery 85. battery cover 87. connector 90. Circuit Card Assembly 92. event sensor #1 94. event sensor #2 96. antenna cover 98. on/off switch 100. Firearm mounted application 110. upper clamp 120. pivotal clamp 123. hinge pin 125. screw/washer 190 weapon 200. dual laser or laser and detector system 220. dual laser or laser and detector payload 250. single mirror system 270. single mirror payload 300. laser system with S shaped cantilevered beam 340. S shaped cantilevered beam 342. tip end of cantilevered beam 348. rear mounted end of S shaped cantilevered beam 400. laser system with center deflecting beam 420. rear wall of housing 425. opening in rear wall with opening having curved interior surface portion(s) 430. front wall of housing 435. opening in front wall with opening curved interior surface 440. center deflecting beam 442. rear conical portion of center deflecting beam 445. middle portion of center deflecting beam 448. front conical portion of center deflecting beam 450 payload(laser) support housing on front end of center deflecting beam 460. rear mount support on rear end of center deflecting beam 470. C shaped housing support for vertical and lateral controls 500. Cam embodiment 510. Cam wheel 520. Cam wheel
[0090] Conical Shaped Cantilevered Beam
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[0092] Referring to
[0093] The profile of the conical element's effective length can be a straight cylinder as shown in
[0094] Eccentricity is a parameter associated with conic sections like circle, ellipse, hyperbola etc. It is a measure of how much a conic section varies from being a circle. Below is the table for the eccentricity of the different conic sections:
TABLE-US-00002 Conic section eccentricity (e) Ellipse 0 < e < 1 Circle e = 0 Parabola e = 1 Hyperbola e > 1 Line e = ∞
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[0096] Equation Driven Beam Profile:
[0097] Alternative non-straight beams are shown in
[0098] Ellipsed profile beams shown in
[0099] The beam with a parabolic profile shown in 43a and 43b is another example of an equation driven profile. In mathematics, parabolic cylindrical coordinates are a three-dimensional orthogonal coordinate system that results from projecting the two-dimensional parabolic coordinate system in the perpendicular z-direction. Hence, the coordinate surfaces are confocal parabolic cylinders.
[0100] The hyperbolic profile beam shown in
[0101] Non-Equation Driven Beam Profile
[0102] The beam profile an also be non-equation-driven. For example, a non-equation driven, non-straight beam profile is shown in
[0103] Another example of a non-equation driven, non-straight beam is shown in
[0104] As described above, the profile of the conical beam can be equation drive, or non-equation driven, or any combination thereof. Likewise, each of the different conical configurations can be solid or hollow.
[0105] The conical element's spring constant and deflection shape (slope) vs. displacement distance by the adjustment elements in each axis can be tailored by the type of material (metal, plastic, composite), effective conical element length, cross section shape and conical element profile. The effective spring constant of the system can also be adjusted by the stiffness of the conical element's mounting surface geometry on the base and the mounting interface geometry on the payload housing.
[0106] The conical element's coefficient of thermal expansion (CTE) can be adjusted to match the effective CTE of the base and the structure the base is mounted to. Damping material can also be incorporated in the conical element design to dampen the movement and associated pointing error over time.
[0107] The position of the outer end 48 of the cantilevered beam 40 can be adjustably positioned by both a lateral adjustment control 60 and vertical adjustment control 70. The adjustment controls can be rotatable knobs, screws, and the like.
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[0109] Referring to
[0110] CCA is a Circuit Card Assembly, it contains the electronic components that runs the SAT, handles power management, has a processor that runs the software, signal conditions the output of the sensors, tells the laser diode to fire, contains an antenna for wireless communication.
[0111] Components 92 and 94 are two of the three different sensors, (the shock signature, flash signature or acoustic signature) that are decoded to determine a valid event
[0112] Diode 53 is a laser diode which is a semiconductor device that produces coherent radiation (in which the waves are all at the same frequency and phase) in the visible or infrared spectrum when current passes through it. The most common type of laser diode is formed from a p-n junction and powered by injected electric current. Due to diffraction, the beam diverges (expands) rapidly after leaving the chip, typically at 30 degrees vertically by 10 degrees laterally. A lens must be used in order to form a collimated beam like that produced by a laser pointer. If a circular beam is required, cylindrical lenses and other optics are used. For single spatial mode lasers, using symmetrical lenses, the collimated beam ends up being elliptical in shape, due to the difference in the vertical and lateral divergences Connector 87 provides for hooking up a cable to charge the battery and manually operate the SAT. The Switch 98 turns the SAT off and on and is used to set the different modes of operation.
[0113] Screws that thread into the housing hold the cover 33 in place. Battery power supply 80 can pass through a threaded opening 25 in the rear wall 20 of the housing and be held in place by a screwable battery cap 85. The housing can be mounted to the rifle barrel 190 by an upper clamp 110 under the housing base 10, and a pivotable clamp 120 having a hinge attached end 123, and a free-moving end that is held in place by a screw and washer 125 that fastens to the housing base 10.
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[0116] S Shaped Cantilevered Beam
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[0118] Referring to
[0119] Center Deflecting Cantilevered Beam
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[0121] Referring to
[0122] A rear mount support 460 attached to the narrow rear end of the conical portion 442 is freely supported within an opening 425 opening in rear wall 420 with the opening 425 having curved interior surface portion(s). The geometry of 460 prevents 440 from rotating about its axis. The front payload support 450 can be attached to the narrow end of the front conical portion 448 can be freely supported within and opening 435 in the front wall 430 of the housing, wherein the opening 435 can also have curved interior surface portion(s). The focus point of the payload can be located at the center of the spherical 450 geometry and there is not linear translation during alignment, only angular movement. A C shaped portion 470 of the housing can be located adjacent to the middle portion 445 of the beam 440, wherein the lateral adjustment control 460 and vertical adjustment control 470 can each cause the beam 440 to deflect laterally and vertically when needed. The laser support module housing 450 can have at least a lower spherical surface that can slide within the curved interior surface of the opening 435 of the front wall.
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[0124] Housing Bias Angle and Preload
[0125] The bias angle can be driven by two design requirements. The first is the vertical and lateral adjustment range from the mechanical boresight when the payload's centerline(s) are parallel to the base centerline. The second is the lateral and vertical preload forces produced by the conical element acting on the housing over the full adjustment range are greater than the lateral and vertical forces produced by the acceleration level in each axis multiplied times the mass of the housing and the effective mass of the conical element.
[0126] The plus and minus adjustment range in each axis from mechanical boresight needs to take into accord any manufacturing tolerances in the SAT assembly, the angular mechanical offsets in the weapon and the angular error associated with the shooter's sight picture.
[0127] The maximum bias angle in each axis is greater than the deflection angle required by the conical element at minimum deflection of the housing from the free state that produces a force greater than the unloading force plus two times the plus/minus adjustment range from the mechanical boresight.
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[0131] The angular pointing error vs. time shown in
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[0133] While the payload 50 has been described as a laser module, other types of payloads can be used, such as but not limited to a passive receiving elements such as television or electromagnetic spectrum detectors, reflective elements such as optical or electromagnetic spectrum reflectors, active elements such as electromagnetic spectrum transmitters, optical elements that can include refractive or diffractive or reflective optical elements, and. indicator or probe components for measuring.
[0134] Although rotating knobs and screws can be used other types of vertical and lateral adjustment controls, can be used such other types of threaded elements, cams or levers, or wedges The adjustments could be manual or servo or remotely controlled. The activation could be by electrical, magnetic, thermal, hydraulic or pneumatic actuators. The linear adjustment for each axis(s) can increase or decrease the angular displace relative to the linear adjustment elements. The linear adjustment elements could be actuators, such as solenoids. The threaded elements can employ different thread pitches or differential threaded components to increase or decrease the angular displacement relative to the linear displacement. Bimetallic materials can be used in the adjustment mechanisms. The contact surface between the adjustment element and the housing is curved to minimize the friction and to minimize the pointing errors as the housing moves and rotates relative to the adjustment element.
[0135] Different kinematic interfaces can be used at the mating points to reduce errors as required by the system requirements. Typical types of kinematic interfaces include but not limited to; Kelvin clamp, trihedral cup, gothic arch, v-blocks, conical cup, split kinematics to minimize Abbe offset issues, canoe sphere and v-block, flat prismatic components, rose bud couplings and knife edge.
[0136] While the invention has been described, disclosed, illustrated and shown in various terms of certain embodiments or modifications which it has presumed in practice, the scope of the invention is not intended to be, nor should it be deemed to be, limited thereby and such other modifications or embodiments as may be suggested by the teachings herein are particularly reserved especially as they fall within the breadth and scope of the claims here appended.