Protective covers for optical devices

Abstract

The present disclosure relates to a viewing optic, and more particularly to a protective cover for a viewing optic. In one embodiment, the disclosure relates to a cover comprising a frame having one or more holes configured to slide over one or more mounting studs, and a connector coupling the frame to a protective material, the protective material configured to cover a viewing window.

Description

[Technical Field]

[0001] (CROSS-REFERENCE TO RELATED APPLICATIONS) This application is a subsidiary of and claims priority to U.S. Provisional Patent Application Serial No. 63 / 391,029, filed July 21, 2022, which is incorporated herein by reference in its entirety.

[0002] (Technical field) FIELD OF THE DISCLOSURE The present disclosure relates to viewing optics, and more particularly to protective covers for viewing optics. In one embodiment, the present disclosure relates to a cover for a non-circular window of a viewing optic. [Background technology]

[0003] Riflescope lenses are often exposed to environmental elements, which can cause dust and dirt to coat the lens or, worse, cause damage to the lens. Protective caps exist to protect against these issues. Furthermore, these protective caps are often stored on the optic, so they can easily be left on the riflescope. Additionally, riflescope users often use alignment apertures (also known as parallax-reducing aperture stops, aperture caps, or aperture limiters) in conjunction with their riflescopes. Aperture caps can be used to align the riflescope and prevent parallax (target misalignment due to lens error). However, these aperture caps have primarily been used for indoor dry-fight training.

[0004] While protective caps and aperture caps exist, no cap fulfills both functions and purposes. These caps have been developed as separate components, requiring the user to keep track of both caps. When these caps are separate components, the problem arises in that the user is prone to losing one or both of the caps. Even if the caps are not lost, the user still has the added stress of having to manage one or more items when using the riflescope.

[0005] Ultimately, if a user is unable to track both caps, or if tracking both caps is deemed difficult by the user, the individual may decide to use the riflescope without the aperture cap. Without the aperture cap, the user is unable to perform alignment. Without the alignment aperture, the user may experience further parallax issues, leading to reduced accuracy in aiming and impact while using the riflescope.

[0006] Additionally, enablers such as laser range finders often have windows and surfaces that need to be protected. However, enablers often have non-circular windows and surfaces.

[0007] Therefore, a need exists for a protective cap for non-circular optics that can be installed and removed without the use of tools. Summary of the Invention

[0008] In one embodiment, the present disclosure relates to a cover for a non-circular optical instrument. In one embodiment, the present disclosure relates to a cover or protective cap for a non-circular viewing window. In one embodiment, the cover or protective cap can be installed and removed without the use of tools.

[0009] In one embodiment, the cover comprises a frame configured to fit around a window frame of the viewing optics. In another embodiment, the cover comprises a protective material configured to fit over the window of the viewing optics. In another embodiment, the cover further comprises a connector coupling the frame to the protective material.

[0010] In one embodiment, the present disclosure relates to a protection device for a non-circular optical instrument. In one embodiment, the present disclosure relates to a protection device for a non-circular viewing window. In one embodiment, the protection device can be attached and removed without the use of a device.

[0011] In one embodiment, the protective device comprises a frame configured to fit around a window frame of the viewing optics. In another embodiment, the protective device comprises a protector configured to fit over a window of the viewing optics. In another embodiment, the protective device further comprises a connector coupling the frame to the protector.

[0012] In one embodiment, the present disclosure relates to a system comprising: an enabler for a viewing optic having a window and a window frame surrounding at least a portion of the window, the window frame having one or more mounting studs; a cover having a frame having one or more holes configured to slide over the one or more mounting studs of the window frame; and a protective material that can cover the window of the enabler. In one embodiment, a connector couples the frame to the protective material.

[0013] In one embodiment, the present disclosure relates to a system including an enabler for a viewing optic having a window and a window frame surrounding at least a portion of the window, the window frame having one or more mounting studs, a frame having one or more holes configured to slide over the one or more mounting studs of the window frame, and a protection device having a protective material or component that can cover the window of the enabler. In one embodiment, the protection device further includes a connector that couples the frame to the protective material.

[0014] In one embodiment, the present disclosure relates to a system including a device having an observation window and a window frame surrounding at least a portion of the observation window, the window frame having one or more mounting studs, the frame having one or more holes configured to slide over the one or more mounting studs of the window frame, and a cover having a protective material that can cover the observation window of the device. In one embodiment, a connector couples the frame to the protective material.

[0015] In one embodiment, the present disclosure relates to a system including an optical instrument having an observation window and a window frame surrounding at least a portion of the observation window, the window frame having one or more mounting studs, the frame having one or more holes configured to slide over the one or more mounting studs of the window frame, and a cover having a protective material that can cover the observation window of the optical instrument. In one embodiment, a connector couples the frame to the protective material.

[0016] In one embodiment, the window frame has 4, 6, or 8 mounting studs. In another embodiment, the window frame has an even number of mounting studs. In one embodiment, the window frame has 6 mounting studs.

[0017] In one embodiment, the cover or protective device is made of a malleable material. In another embodiment, the cover is made of a flexible material. In one embodiment, the protective material is configured to fit the window frame of the enabler.

[0018] In one embodiment, the protective material or protective component is made of a malleable material, hi another embodiment, the protective material is made of a flexible material.

[0019] In one embodiment, one or more mounting studs have a 60° tapered head on the front of the stud. In another embodiment, one or more mounting studs have a shelf on the rear of the stud. The shelf is a structure configured to hold a protective cover.

[0020] In one embodiment, the enabler is a laser range finder.

[0021] In another embodiment, the system further comprises a viewing optics having a main body and having an objective lens system at one end of the main body and an eyepiece lens system located at the other end of the main body, an enabler coupled to an end of the main body and having a viewing window, and a cover or protective device for the viewing window of the enabler.

[0022] In one embodiment, the observation optics includes an active display configured to generate an image, hi another embodiment, the generated image is projected onto a first focal plane of the observation optics, the first focal plane being located between the objective lens system and the erecting lens system.

[0023] In one embodiment, the present disclosure relates to a cover comprising a frame having one or more holes configured to slide over one or more mounting studs of an enabler, and a connector that couples the frame or structure to a protective material that can cover an observation window of the enabler.

[0024] In one embodiment, the frame is made of a flexible material. In another embodiment, the frame has six holes.

[0025] In one embodiment, the present disclosure relates to an enabler comprising an observation window and a window frame surrounding at least a portion of the observation window, the window frame having one or more mounting studs. In one embodiment, the one or more mounting studs have a 60° tapered head on the front of the stud. In another embodiment, the one or more mounting studs have a shelf on the rear of the stud.

[0026] In one embodiment, the present disclosure relates to a system that includes a cover or protective device for a non-circular optic and a "zero cap" for the viewing optic.

[0027] In one embodiment, the present disclosure relates to a system that includes a cover or protective device for the viewing window of the enabler and a "zero cap" for the viewing optics.

[0028] In one embodiment, the present disclosure relates to a "zero cap" that alleviates the problems associated with keeping track of two separate caps. As disclosed herein, the zero cap serves as both a protective cap and an aperture cap. In one embodiment, the zero cap can be attached to a viewing optic. As a single component with multiple functions, the zero cap prevents a user from having to manage multiple components and potentially losing them.

[0029] The zero cap disclosed herein not only improves ease of use, but also improves accuracy for the user. The user can easily connect the alignment aperture to the viewing optics and easily calibrate the viewing optics. This leads to increased accuracy and reduced frustration when using the viewing optics.

[0030] Additionally, the zero cap keeps the lenses of the observation optics clean. Typically, debris and dirt get into the observation optics. Users can have a protective cap, but they cannot have a protective cap and an alignment aperture cap in one cap. Having both functions in one cap increases accuracy, reduces frustration, prevents misplacement and loss, and reduces lens contamination.

[0031] In one embodiment, the present disclosure relates to a zero cap comprising a base, an aperture cap configured to be hingedly connected to the base, and a cap plug configured to rotate on the aperture cap. In one embodiment, the base comprises a first opening and a first coupling mechanism. In one embodiment, the first opening is configured to be attached to a viewing optic, and the first coupling mechanism is configured to receive a pin for connecting the first coupling mechanism to another coupling mechanism.

[0032] In one embodiment, the aperture cap includes a plurality of holes and a second connection mechanism. The aperture cap can have two or more holes. In one embodiment, each of the plurality of holes is configured to receive one of the plurality of plugs. In another embodiment, the second connection mechanism is configured to receive a pin for connecting to another connection mechanism.

[0033] In one embodiment, the cap plug comprises a first plug and a second plug.

[0034] In one embodiment, the present disclosure relates to a zero cap comprising: a base configured to connect to an observation optical instrument; an aperture cap configured to be hingedly connected to the base and having a first hole and a second hole, the second hole being located below the first hole; and a cap plug having a first plug and a second plug, the first plug configured to interact with the first hole and the second plug configured to interact with the second hole.

[0035] In one embodiment, the base has an opening configured to mount the outer connection strip of the viewing optics.

[0036] In one embodiment, the first hole in the aperture cap is in the center of the aperture cap.

[0037] In one embodiment, the present disclosure relates to a viewing optic comprising the zero cap disclosed herein. In yet another embodiment, the present disclosure relates to a riflescope comprising the zero cap disclosed herein.

[0038] In one embodiment, the present disclosure relates to an observation optical instrument comprising a zero cap having a base, an aperture cap configured to be hingedly connected to the base, a cap plug configured to rotate on the aperture cap, and a connection strip configured to interact with the base.

[0039] Embodiments of the present disclosure are disclosed with reference to the accompanying drawings, which are for purposes of example only. The disclosure is not limited in its application to the details of construction or the arrangement of components illustrated in the drawings. The disclosure is capable of other embodiments or of being practiced or carried out in various other ways. Like reference numerals are used to indicate like components. [Brief explanation of the drawings]

[0040] [Figure 1] FIG. 1 is an exploded view of the zero cap removed in a riflescope environment. [Figure 2] FIG. 1 is a side view of a fully connected zero cap as disclosed herein. [Figure 3] FIG. 1 is a representative view of a cap plug disclosed herein. [Figure 4] FIG. 1 is a representative view of an aperture cap as disclosed herein. [Figure 5] FIG. 10 is a representation of the zero cap in a protective position. [Figure 6] FIG. 10 is a representative view of the zero cap in the zero position. [Figure 7] FIG. 10 is a representation of the zero cap in an open position. [Figure 8] 1 is a representative diagram of a cover or protective device for an optical instrument having a non-circular viewing window, where the optical instrument is shown as a laser rangefinder with a square-shaped viewing window. [Figure 9] A representative diagram showing a non-circular optical instrument frame surrounding an observation window with multiple retaining studs, and a cover or protective device having a frame with corresponding corresponding holes that slide over the retaining studs and a protective material covering the observation window. [Figure 10] A representation of a retaining stud with a 60° tapered head. [Figure 11] FIG. 10 is a representation of the interaction between the frame of a protection device or cover and the retaining or mounting studs on a window frame surrounding the window of an enabler. [Figure 12A] 1 is a representative diagram of one exemplary type of viewing optic that can be used with the enablers and protective caps disclosed herein: a viewing optic with an active display. [Figure 12B] 1 is a representative diagram of one exemplary type of viewing optic that can be used with the enablers and protective caps disclosed herein: a viewing optic with an active display. [Figure 12C] 1 is a representative diagram of one exemplary type of viewing optic that can be used with the enablers and protective caps disclosed herein: a viewing optic with an active display. DETAILED DESCRIPTION OF THE INVENTION

[0041] Before describing embodiments of the present disclosure in detail, it is to be understood that the disclosure is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the drawings. The techniques of the present disclosure are capable of other embodiments or of being practiced or carried out in various ways. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting.

[0042] FIELD OF THE DISCLOSURE The present disclosure relates to covers for viewing optics and related devices. Certain preferred exemplary embodiments of the invention are described below, but the invention is not limited to these embodiments.

[0043] The apparatus and methods disclosed herein will now be described more fully with reference to the accompanying drawings, in which embodiments of the disclosure are shown. However, the apparatus and methods disclosed herein may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0044] Those skilled in the art will understand that the set of features and / or functions can be readily adapted within the context of stand-alone weapon sights, front-mounted or rear-mounted clip-on weapon sights, and other variations of the claimed optical weapon sight. Furthermore, those skilled in the art will understand that various combinations of features and capabilities can be incorporated into add-on modules for retrofitting any type of existing fixed or adjustable weapon sight.

[0045] When an element or layer is referred to as being "on," "connected to," or "coupled to" another element or layer, it will be understood that the element or layer is directly on, or can be directly connected or coupled to, the other element or layer. Alternatively, intervening elements or layers may be present. In contrast, when an element is referred to as being "directly on," "directly connected to," or "directly coupled to" another element or layer, there are no intervening elements or layers present.

[0046] Like numbers refer to like elements throughout. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0047] Although terms such as first, second, etc. may be used herein to describe various elements, components, regions, and / or sections, it will be understood that these elements, components, regions, and / or sections are not limited by these terms. These terms are used only to distinguish one element, component, region, or section from another element, component, region, or section. Thus, a first element, component, region, or section discussed below could be referred to as a second element, component, region, or section without departing from this disclosure.

[0048] Spatially relative terms such as "below," "below," "lower," "above," and "upper" may be used herein for ease of description to describe the relationship of one element or feature to another element or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass various orientations of the device during use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures were inverted, elements described as being "below" or "below" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein can be interpreted accordingly.

[0049] definition

[0050] Numerical ranges in this disclosure are approximate and thus may include values outside the range unless otherwise indicated. Numerical ranges include all values from the lower limit to the upper limit, inclusive, in increments of one unit, provided that there is a separation of at least two units between any lower limit and any upper limit. As an example, if a compositional, physical, or other property, such as molecular weight, viscosity, etc., ranges from 100 to 1000, all individual values such as 100, 101, 102, etc., as well as subranges such as 100 to 144, 155 to 170, 197 to 200, etc., are expressly recited. For ranges containing values less than 1 or containing decimals greater than 1 (e.g., 1.1, 1.5, etc.), one unit is considered to be 0.0001, 0.001, 0.01, or 0.1, as appropriate. In ranges containing single digits less than 10 (e.g., 1 to 5), 1 unit is typically considered to be 0.1. These are merely examples of what is specifically intended, and all possible combinations of numerical values between the lowest and highest values listed shall be considered to be expressly set forth in this disclosure. Numerical ranges for distance from the user of the device to the target are provided, among other things, within this disclosure.

[0051] The term "and / or" as used herein in phrases such as "A and / or B" is intended to include both A and B; A or B; A alone; and B alone. Similarly, the term "and / or" as used in phrases such as "A, B, and / or C" is intended to include each of the following embodiments: A, B, and C; A, B, or C; A or C; A or B; B or C; A and C; A and B; B and C; A alone; B alone; and C alone.

[0052] As used herein, "ballistics" is a method of accurately calculating the trajectory of a bullet based on a number of factors.

[0053] As used herein, an enabler is a system or device that can be used with one or more viewing optics. In one embodiment, an enabler is a system or device that can provide information to assist a user of the viewing optics. In one embodiment, an enabler is a system or device that can be coupled to a portion of the viewing optics. In one embodiment, an enabler includes, but is not limited to, a laser rangefinder, a camera, a compass module, a communication module, a laser targeting unit, an illuminator, a backup sight (iron sights, red dot, or another sight), a pivoting sight module, or other device useful to a user. In this specification, the terms "enabler" and "enabler device" are used interchangeably.

[0054] As used herein, an "erection sleeve" is a protrusion from an erection lens mount that engages with a slot in the erection tube and / or cam tube or serves a similar purpose. It may be integral with the mount or detachable.

[0055] As used herein, an "erection tube" is any structure or device having an opening for receiving an erection lens mount.

[0056] As used herein, the term "frame" refers to a structure that surrounds or encloses another component or structure. In one embodiment, the frame may surround or enclose an observation window.

[0057] As used herein, the term "firearm" refers to any device that propels an object or projectile, for example, in a controllable crossfire, line of sight, or line of fire, including, for example, handguns, pistols, rifles, shotguns, muzzle-loading rifles, single-shot rifles, semi-automatic rifles, and fully automatic rifles of any caliber through any medium. The term "firearm" as used herein also refers to remotely operated, servo-controlled firearms in which the firearm automatically senses both the position and direction of the barrel. A shooter can position the firearm in a first position and move it to a second position for target image acquisition and aiming. The term "firearm" as used herein also refers to chain guns, belt-fed guns, machine guns, and Gatling guns. The term "firearm" as used herein also refers to high-altitude and over-the-horizon projectile-propelling devices, such as artillery of any caliber, mortars, cannons, tank guns, or railguns.

[0058] As used herein, the term "malleable" means having the ability to be formed into various shapes and flexible properties.

[0059] As used herein, the term "flexible" refers to the ability to bend or shape, or be flexible.

[0060] As used herein, the term "reticle" refers, in one embodiment, to an aiming pattern for a viewing optic, such as, but not limited to, a crosshair aiming point or other aiming pattern.

[0061] As used herein, the term "sight optics" refers to devices used by a shooter or observer to select, identify, or monitor a target. "Sight optics" may rely on observation of the target or radiation, including, for example, infrared (IR), ultraviolet (UV), radar, thermal, microwave, or magnetic imaging; x-rays, gamma rays, isotopic radiation, and particle radiation; night vision; ultrasound; pulsed sound; sonar; seismic vibrations; vibration receptors, including magnetic resonance; gravity receptors; broadcast frequencies, including radio waves; television and cellular receptors; or other images of the target. The image of the target presented to the shooter by the "sight optics" device may be unaltered or may be enhanced, for example, by magnification, amplification, subtraction, superposition, filtering, stabilization, template matching, or other means. A target selected, identified, or monitored by the "sighting optics" can be within the shooter's line of sight, out of the shooter's line of sight, or the shooter's line of sight can be obstructed while the target acquisition device presents a focused image of the target to the shooter. The target image acquired by the "sighting optics" can be, for example, analog or digital, and can be shared, saved, stored, or transmitted within a network of one or more shooters or observers, for example, by video, physical cable or wire, IR, radio waves, cellular connection, laser pulse, optical, 802.11b, or other wireless transmission using protocols such as html, SML, SOAP, X.25, SNA, Bluetooth™, serial, USB, or other suitable image distribution method. The term "sighting optics" is used synonymously with "optical sight."

[0062] As used herein, the term "external scene" refers to a real-world scene that includes, but is not limited to, a target.

[0063] As used herein, the term "shooter" refers to either the operator firing the shot or an individual observing the shot in conjunction with the operator firing the shot.

[0064] To further appreciate this disclosure, it is crucial to understand the purpose and function of the alignment aperture. Reticles are used to assist the shooter in hitting the target. Reticles can be made from a variety of materials, including optical materials such as optical glass or plastic. Reticles can be made from any transparent or translucent material. In one embodiment, the reticle is constructed from wires, spider webs, nanowires, etchings, or prints. Reticles can also be constructed using mirrors, video, holographic projection, or projections onto the material from other means. The etchings can be filled with a reflective material that illuminates when light is rheostatically switched to increase or decrease the light intensity. Reticles can be implemented anywhere between the eyepiece and objective lens of a scope lens. There are two important calibration functions that are implemented into riflescopes:

[0065] In one embodiment, the reticle can be an electronic reticle from an active display projected onto a first focal plane of the viewing optics, the first focal plane being located between the objective lens system and the erector lens system, and the second focal plane being located between the eyepiece lens system and the erector lens system.

[0066] Two important calibration functions include weapon zeroing and laser rangefinder alignment. First, weapon zeroing generally refers to the process of aligning the etched (passive) reticle of a weapon with the point of impact when firing at a target. Second, alignment of the integrated laser rangefinder (LRF) is achieved using an alignment chart. The alignment chart details the position of the LRF's co-aligned visible laser relative to the passive reticle. For illustrative purposes, assume a user is about to use a riflescope and needs to align the LRF. The user places the alignment chart a predetermined distance from the observation point. The user then aims the weapon, optics, and passive reticle at the designated point. The user then adjusts the LRF's visible laser to align it with the associated point on the alignment chart.

[0067] While the steps involved in the calibration function may seem simple, even those with advanced training and experience can encounter problems resulting from parallax. As mentioned above, parallax is the displacement of an object due to lens error. However, this problem can be addressed by using an aperture cap attached to the front of the riflescope. The aperture cap limits the aperture diameter, ultimately reducing error. Zeroing the weapon can be achieved at 25 meters. Aligning the LRF with the passive and active reticles can be achieved at 10 meters.

[0068] As described above, the zero cap disclosed herein is a combination protective cap and aperture cap, which eliminates the difficulty and stress of managing multiple caps and keeping track of various elements during riflescope use. Protective caps are typically attached to riflescopes, and zero caps can be attached in the same manner.

[0069] In one embodiment, the zero cap can be used as an aperture cap when the protective cap is closed and removed at one end so that the cap plug is rotated out of the optical path. The user can then see through the central hole (where the cap plug was rotated out), and in this example, the user is looking through a limited objective aperture.

[0070] The cap plug features two plugs, each designed to fit into a hole in the aperture cap. When the top plug is in the top hole of the aperture cap, both holes are blocked, preventing debris from entering, so the zero cap can be used for protection. When the top plug rotates around and is not in the top hole of the aperture cap, the zero cap can be used for zeroing and laser rangefinder alignment. To prevent the cap plug from falling off the aperture cap, the bottom plug remains in the bottom hole of the aperture cap when the zero cap is being used for protection or calibration. This prevents the cap plug from being misplaced or lost.

[0071] Zero caps can be used for a variety of different applications, but some representative examples include: Zero caps can be used with LRFs mounted on passive reticles on scopes, as long as the LRF has a co-aligned visible laser and the user has the correct alignment card for the riflescope / LRF combination. Zero caps can be used for indoor dry-fire training. Zero caps can also be used to zero conventional riflescopes or weapons with magnified optics between 10 and 100 meters.

[0072] 1 shows an exploded view of the components of a zero cap in an environment 1. The zero cap comprises several components: a base 20, an aperture cap 35, and a cap plug 55. In one embodiment, the zero cap is attached to a riflescope 5. The riflescope 5 comprises an aperture 10 and an outer connecting strip 15.

[0073] In one embodiment, the outer connecting strip 15 is a protruding rim on the riflescope 5. The outer connecting strip 15 is designed to mechanically interconnect with a cap, which in one embodiment is a zero cap. The outer connecting strip 15 is preferably attachable to a base 20 of the zero cap. The base 20 has an opening 25 configured for attachment to the outer connecting strip 15 in a manner known in the art. The base 20 has a connecting mechanism 30 with a hole designed to receive a hinge pin (not shown) for connecting to another connecting mechanism.

[0074] In one embodiment, connection mechanism 30 is connected to aperture cap 35. Aperture cap 35 has connection mechanism 40 with a hole designed to receive a hinge pin (not shown) for connection. In one embodiment, the hinge pin can first pass through connection mechanism 30 on base 20, then through connection mechanism 40 on aperture cap 35, and exit through the other side of the connection mechanism. This hinge pin maintains the connection between the two elements (base 20 and aperture cap 35) while simultaneously allowing aperture cap 35 to hinge around base 20.

[0075] In one embodiment, aperture cap 35 has two holes in its face. In one embodiment, top hole 45 is located in the center of the face of aperture cap 35. Bottom hole 50 is preferably located off-center in the face of aperture cap 35 below top hole 45.

[0076] The top hole 45 and the bottom hole 50 are each designed to receive a plug. In one embodiment, the top hole 45 and the bottom hole 50 receive a plug from a cap plug 55. The cap plug 55 has two plugs: a top plug 60 and a bottom plug 65. The top plug 60 is designed to be placed in the top hole 45, and the bottom plug 65 is designed to be placed in the bottom hole 50. The bottom plug 65 is designed to remain in the bottom hole 50.

[0077] In one embodiment, the bottom plug 65 is rotatable within the bottom hole 50. This rotation allows the top plug 60 to be removed from the top hole 45 and remain out of the aperture cap opening for alignment. The top plug 60 can be removed from the top hole 45 in order to move around the aperture cap 35. This movement creates a full line of sight for the user through the top hole 45. The top plug 60 is designed to be removed from the top hole 45 while the bottom plug 65 remains in the bottom hole 50.

[0078] In one embodiment, the aperture cap has at least two holes in its surface.

[0079] 2 shows a side view of a fully connected zero cap 2. The zero cap 2 comprises a base 20, an aperture cap 35, and a cap plug 55. The base 20 and the aperture cap 35 are connected via a hinge pin 70. As shown, the top plug 60 and the bottom plug 65 of the cap plug 55 are fully integrated with the top hole 45 and the bottom hole 50 of the aperture cap 35, respectively. The cap plug is connected to prevent the intrusion of debris inside the zero cap 2.

[0080] 3 is a side perspective view of the cap plug 55. As shown, the top plug 60 is configured to be removed from the top hole 45 (as described above) while the cap plug 55 remains connected to the aperture cap 35. The bottom plug 65 is designed to remain in the bottom hole 50 (as described above) while the top plug 60 is disconnected. This is preferable because it eliminates the need to remove the cap plug 55 from the aperture cap 35. The cap plug 55 can remain connected to the zero cap 2 as a whole, preventing misplacement or loss of the cap plug 55.

[0081] 4 is a front view of aperture cap 35. Aperture cap 35 preferably has a top hole 45 and a bottom hole 50. In one embodiment, top hole 45 is located at the optical center of the riflescope, concentric with the objective lens. Bottom hole 50 is preferably located below top hole 45. In one embodiment, bottom hole 50 serves as an interconnect with cap plug 55 (as described above) and remains connected to bottom plug 65 even when top hole 45 remains open.

[0082] Figure 5 shows the zero cap 2 (from Figure 2) in use in the protective position 3a. The zero cap 2 is fully connected as shown in Figure 2. The base 20 is connected to the riflescope 5. The aperture cap 35 is hingedly connected to the base 20. In one embodiment, the cap plug 55 is connected to the aperture cap 35 in such a way as to not leave any holes on the aperture cap 35 exposed and open. In this position, the zero cap 2 performs its protective function.

[0083] Figure 6 shows the zero cap 2 (from Figure 2) in use in the zero position 3b. The zero cap 2 is fully connected as shown in Figure 2. The base 20 is connected to the riflescope 5. The aperture cap 35 is hingedly connected to the base 20. In one embodiment, a cap plug 55 is connected to the aperture cap 35 in such a way as to leave the top hole 45 of the aperture cap 35 open. In this position, the zero cap 2 performs its alignment function.

[0084] FIG. 7 shows the zero cap 2 (from FIG. 2) in use in the open position 3c. The zero cap 2 is fully connected, but not fully closed, as shown in FIG. 2. The base 20 is connected to the riflescope 5. The aperture cap 35 is hingedly connected to the base 20. In one embodiment, and as shown here, the aperture cap 35 rotates about a hinge pin 70 to leave the opening 25 in the base 20 and the opening 10 in the riflescope 5 fully open and accessible. Although not fully shown here, a cap plug 55 is connected to the aperture cap 25. In one embodiment, the top plug 60 is fully integrated with the top hole 45 of the aperture cap 25, and the bottom plug 65 is fully integrated with the bottom hole 50 of the aperture cap 25. In this position, the zero cap 2 performs its opening function, and the firearm can be fired.

[0085] Cover for optical instrument having non-circular observation window

[0086] In one embodiment, the present disclosure relates to a cover or protective device for a non-circular optic. In one embodiment, the cover for the non-circular optic can be installed and removed without the use of tools.

[0087] In one embodiment, the present disclosure relates to a cover or protective device for a device having a viewing window. In one embodiment, the cover for the device can be attached and removed without the use of tools.

[0088] In one embodiment, the present disclosure relates to a cover or protection device for an enabler, comprising: a frame or structure having one or more holes that slide over one or more mounting studs of the enabler having an observation window; and a protective material configured to cover the observation window of the enabler. In one embodiment, the cover or protection device further comprises a connector that couples the frame or structure to the protective material.

[0089] In one embodiment, the present disclosure relates to a system comprising: an enabler for a viewing optic having a window and a window frame surrounding at least a portion of the window, the window frame having one or more mounting studs; a frame or structure having one or more holes that slide over the one or more mounting studs of the window frame; a protective material configured to cover the window of the enabler when desired by a user; and a connector coupling the frame or structure to the protective material. In one embodiment, the protective material can be flipped onto the window frame of the enabler when desired by a user.

[0090] In one embodiment, the present disclosure relates to a cover having a semi-malleable frame that slides over tapered retaining studs on the frame surrounding the viewing window of an optical instrument or device or enabler. The cover can be easily removed because the malleability of the cover allows it to slide back over the head of the stud.

[0091] In one embodiment, the cover is made of a flexible material.

[0092] In one embodiment, the window frame has 4, 6, 8, or 10 mounting studs. In one embodiment, the window frame has an even number of mounting studs. In another embodiment, the window frame has an odd number of mounting studs.

[0093] In one embodiment, the viewing optics covers disclosed herein can be used with viewing optics including, but not limited to, viewing optics with integrated display systems, smart scopes, traditional riflescopes, red dots, holographic sights, aiming laser devices, thermal imaging imagers, or other non-circular shaped lens housings. The covers disclosed herein can be incorporated into cameras, phone cases, or other devices that would benefit from a protective cover that can be easily replaced by the end user.

[0094] 8 and 9 provide representative, non-limiting illustrations of covers for non-circular optical instrument windows. In this representative example, a laser ranging enabler with a square viewing window is shown. The cover (810) has a protective material that protects the viewing window (820) of the ranging enabler (830).

[0095] In one embodiment, the ranging enabler 830 has a frame 840 on its front that holds the window 820 in place. The frame 840 has six mounting studs 850 with 60° tapered heads on the front of the studs and a shelf behind the studs that prevents the cover 810 from moving unintentionally by the user.

[0096] In one embodiment, the cover or protection device (810) has a frame (905) with six corresponding holes (910) that slide over mounting studs (850) on the window frame of the enabler. The cover (810) has connectors (920) that connect the frame (905) to the protection material (890).

[0097] The cover or protection device 810 has a flap or protection 890 that flips up within the window frame 840 to protect the observation window 820 during use, and the flap or protection 890 can be retracted over the range finder enabler 830 when the user wishes to use the range finder.

[0098] Figure 10 is a representative diagram of a mounting stud with a 60° tapered head 1010. The semi-malleable nature of the cover 810 allows it to easily slide over the head of the stud 1010 and, when deliberate force is applied, pop out onto the shelf of the stud 1020. This allows the user to press down on the cover 810 and then peel it off as needed.

[0099] FIG. 11 is a representative, non-limiting illustration of a cover 1110, a laser range finder window frame 1130, and a retaining or mounting stud 1120 located on the window frame.

[0100] In one embodiment, the frame of the viewing optic can have any number of retention or mounting studs, including but not limited to 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, and more than 20 retention studs. In one embodiment, the frame of the optic has at least 6 retention or mounting studs. In another embodiment, the frame of the optic has no more than 12 retention or mounting studs.

[0101] In one embodiment, the cover has a number of holes that matches the number of retaining studs on the window frame surrounding the observation window of the enabler. In one embodiment, the cover has 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, and more than 20 holes. In one embodiment, the cover has at least 6 holes. In another embodiment, the cover has no more than 12 holes.

[0102] In another embodiment, the retention or mounting studs can be positioned in a different position or orientation. In another embodiment, the retention or mounting studs and attached cover can wrap around a corner.

[0103] In one embodiment, the retention or mounting studs are integrated directly into the frame. The retention studs are machined directly into the frame to simplify assembly. In another embodiment, the retention or mounting studs are manufactured separately and then coupled to the enabler window frame.

[0104] In another embodiment, the retaining studs can be incorporated into the cover and the holes into the frame.

[0105] In one embodiment, the cover is a non-flip protector over the enabler. In this embodiment, the cover is completely removed whenever the user wants to open the window. In another embodiment, the flip cover is rotated in a different direction than the top of the enabler.

[0106] In one embodiment, the same mounting or retention stud and hole method can be used to hold the flip cap or protector in the open and / or closed position. In this embodiment, the top of the enabler can have mounting or retention studs and the protector can have holes configured to slide over the mounting or retention studs.

[0107] In another embodiment, the cover can have finger tabs to allow for easy removal of the cover from the viewing optics.

[0108] In other embodiments, the taper on the front and rear surfaces of the retention studs can vary in angle and shape and can be steeper or shallower than that shown. In one embodiment, the retention stud has a tapered head of 40°, 45°, 50°, 55°, 60°, 65°, 70°, 75°, 80°, 85°, 90°, 95°, 100°, 110°, 120°, or greater than 120°. In one embodiment, the retention stud has a tapered head of 30° to 150°. In one embodiment, the retention stud has a tapered head of 50° to 75°. In yet another embodiment, the retention stud has a tapered head of 60° to 110°.

[0109] 12A-12C are representative diagrams of a viewing optic that can use the covers disclosed herein. The viewing optic has a main body with an ocular lens system 1204 at one end of the main body and an objective lens system 1202 at the other end of the main body.

[0110] In one embodiment, the observation optical instrument has an optical system consisting of an objective lens system that focuses an image from the target onto a first focal plane (hereinafter referred to as the "FFP target image"), an erecting lens system that then inverts the FFP target image and focuses it onto a second focal plane (hereinafter referred to as the "SFP target image"), and an eyepiece lens system that collimates the SFP target image so that it can be observed by the human eye.

[0111] In one embodiment, a laser rangefinder is coupled to the body of the viewing optics.

[0112] In one embodiment, the observation optics includes an active display 1210 for generating an image. In another embodiment, the observation optics includes a condenser lens system 1220 for collecting light from the active display. In yet another embodiment, the observation optics includes a beam combiner 1230 for combining the image from the active display with an image of an external scene. In another embodiment, the beam combiner 1230 is located between the objective lens system 1202 and a first focal plane 1240. The first focal plane 1240 is located between the erect lens system 1250 and the objective lens system 1202.

[0113] In another embodiment, the viewing optics includes a reflective material 1222 to direct the generated image from the active display to the beam combiner.

[0114] Active Display

[0115] In one embodiment, the observation optics includes an active display 1210. In one embodiment, the active display is controlled by a microcontroller or computer. In one embodiment, the active display is controlled by a microcontroller with an integrated graphics controller to output a video signal to the display. In one embodiment, information can be sent wirelessly or physically connected to the observation optics via a cable port. In yet another embodiment, multiple input sources can be input to the microcontroller and displayed on the active display.

[0116] In one embodiment, the active display can be a reflective, transmissive, or emissive microdisplay, including but not limited to a microdisplay, a transmissive active matrix LCD display (AMLCD), an organic light emitting diode (OLED) display, a light emitting diode (LED) display, an e-ink display, a plasma display, a segmented display, an electroluminescent display, a surface conduction electron emitter display, a quantum dot display, and the like.

[0117] In one embodiment, the LED array is a micropixel LED array, and the LED elements are micropixel LEDs (also referred to in embodiments as microLEDs or μLEDs) having a small pixel size, typically less than 75 μm. In some embodiments, the LED elements can each have a pixel size ranging from about 8 μm to about 25 μm, and a pixel pitch (both vertically and horizontally across the microLED array) ranging from about 10 μm to about 30 μm. In one embodiment, the microLED elements have a uniform pixel size of about 14 μm (e.g., all microLED elements are the same size within a small tolerance) and are arranged in the microLED array at a uniform pixel pitch of about 25 μm. In some embodiments, the LED elements can each have a pixel size of 25 μm or less and a pixel pitch of about 30 μm or less.

[0118] In some embodiments, microLEDs may be inorganic and based on gallium nitride light emitting diodes (GaN LEDs). MicroLED arrays (comprising many μLEDs arranged in a grid or other array) can provide high-density light-emitting microdisplays that are not based on external switching or filtering systems. In some embodiments, GaN-based microLED arrays can be grown, bonded, or otherwise formed on a transparent sapphire substrate.

[0119] In one embodiment, the sapphire substrate is textured, etched, or otherwise patterned to increase the internal quantum efficiency and light extraction efficiency (i.e., extracting one or more light beams from the surface of the micro-LED) of the micro-LED. In another embodiment, silver nanoparticles can be deposited / dispersed onto the patterned sapphire substrate to coat the substrate before bonding the micro-LEDs to further improve the light efficiency and output power of GaN-based micro-LEDs and micro-LED arrays.

[0120] In one embodiment, the active display may be monochrome or may provide full color, and in some embodiments, may provide multiple colors. In other embodiments, other suitable display designs or types may be employed. The active display may be driven by electronic devices. In one embodiment, the electronic device may provide display functionality or may receive such functionality from another device in communication with it.

[0121] In one embodiment, the active display can be part of a backlight / display assembly, module, or arrangement having a backlight assembly including a backlight illumination or light source, device, apparatus, or component, such as an LED backlight, for illuminating the active display with light. In some embodiments, the backlight source can be a large-area LED and can include a first lens or integrating lens for collecting and directing the generated light to a second, illuminating or concentrating lens for collecting, focusing, and directing the light onto the active display with good spatial and angular uniformity along the display optical axis B. The backlight assembly and active display can be low power yet provide an image with sufficient brightness to simultaneously view a very bright real world through optical equipment.

[0122] The backlight color can be any monochrome color choice, or can be white to support a full-color microdisplay. To optimize the backlight performance, other backlight design elements such as other light sources, waveguides, diffusers, micro-optical elements, polarizers, birefringent components, optical coatings, and reflectors can be included to meet the overall size requirements and brightness, power, and contrast needs of the active display.

[0123] Representative examples of usable microdisplays include, but are not limited to, Microoled, including MDP01 (series) DPYM, MDP02, and MDP05; Emagin, such as SVGA, microdisplays with pixel pitches of 9.9x9.9 microns and 7.8x7.8 microns; and Lightning Oled Microdisplays, such as those manufactured by Kopin Corporation. MicroLED displays manufactured by VueReal and Lumiode may also be used, but are not limited to these.

[0124] In one embodiment, the electronics associated with the active display may include the ability to generate display symbols, format output for the display, and include battery information, power conditioning circuitry, a video interface, a serial interface, and control features. Other features may be included for additional or different functionality of the display overlay unit. An electronic device may be provided with display functionality or may receive such functionality via communication from another device.

[0125] In one embodiment, the active display can generate images including an active target reticle for viewing through the eyepiece along with an image of the scene seen through the optics, range finding and wind information, GPS and compass information, firearms tilt information, target detection, recognition and identification (ID) information, and / or external sensor information (sensor video and / or graphics), or images including, but not limited to, text, alpha-numeric characters, graphics, symbols, and / or video imagery, icons, etc., including imagery for situational awareness. Direct viewing optics can include or maintain an etched reticle and boresight and retain high resolution.

[0126] In one embodiment, the active display can be activated to display a programmable electronic aim point anywhere within the field of view. This location can be determined by the user (as in the case of a rifle that fires both supersonic and subsonic ammunition and therefore has two different ballistics and "zeroing"), or it can be calculated based on information received from a ballistic calculator. This provides a "drop-compensated" aim point for long-range shots, which can be updated with each shot.

[0127] In one embodiment, the active display can be oriented to achieve maximum vertical compensation, hi one embodiment, the active display is positioned so that it is taller than it is wide.

[0128] In one embodiment, the observation optics further comprises a processor in electronic communication with the active display. In another embodiment, the observation optics can include a memory, at least one sensor, and / or an electronic communication device in electronic communication with the processor.

[0129] Beam Combiner

[0130] In one embodiment, the viewing optics includes a beam combiner 1230. In one embodiment, the beam combiner is one or more prism lenses (the prism lenses make up the beam combiner). In another embodiment, the main body of the riflescope includes a beam combiner that combines images operating from the active display and the viewing optics along the viewing optical axis of the riflescope.

[0131] In one embodiment, a beam combiner is used to combine a generated image from the integrated viewing system with an image from an optical system for viewing an outward image, the optical system being located within the main body of the riflescope in front of a first focal plane within the main body, and the combined image is then focused onto the first focal plane such that the generated image and the observed image have not moved relative to one another. With the combined image focused on the first focal plane, the aiming reference generated by the integrated viewing system is accurate regardless of adjustments to the movable imaging device.

[0132] In one embodiment, the beam combiner can be aligned with the integrated display system along the display optical axis and positioned along the field of view optical axis of the observation optics of the riflescope body, thereby directing an image from the integrated display onto the observation optical axis for superimposition and combination with the field of view of the observation optics.

[0133] In another embodiment, the beam combiner and the integrated display system are in the same housing. In one embodiment, the beam combiner is approximately 25 mm from the objective lens assembly.

[0134] In one embodiment, the beam combiner is about 5 mm from the objective lens assembly, hi one embodiment, the beam combiner is positioned at a distance from the objective lens assembly including, but not limited to, 1 mm to 5 mm, or 5 mm to 10 mm, or 5 mm to 15 mm, or 5 mm to 20 mm, or 5 mm to 30 mm, or 5 mm to 40 mm, or 5 mm to 50 mm.

[0135] In yet other embodiments, the beam combiner is positioned at a distance from the objective lens assembly including, but not limited to, 1 mm to 4 mm, or 1 mm to 3 mm, or 1 mm to 2 mm.

[0136] In one embodiment, the beam combiner is positioned at a distance from the objective lens assembly, including but not limited to, at least 3 mm, at least 5 mm, at least 10 mm, and at least 20 mm, hi yet another embodiment, the beam combiner is positioned at a distance between 3 mm and 10 mm from the objective lens assembly.

[0137] In another embodiment, the beam combiner is about 150 mm from the objective lens assembly, hi one embodiment, the beam combiner is positioned at a distance from the assembly including, but not limited to, 100 mm to 200 mm, or 125 mm to 200 mm, or 150 mm to 200 mm, or 175 mm to 200 mm.

[0138] In one embodiment, the beam combiner is positioned at a distance from the assembly including, but not limited to, 100 mm to 175 mm, or 100 mm to 150 mm, or 100 mm to 125 mm.

[0139] In one embodiment, the beam combiner is positioned at a distance from the assembly including, but not limited to, 135 mm to 165 mm, or 135 mm to 160 mm, or 135 mm to 155 mm, or 135 mm to 150 mm, or 135 mm to 145 mm, or 135 mm to 140 mm.

[0140] In one embodiment, the beam combiner is positioned at a distance from the eyepiece assembly that includes, but is not limited to, 140 mm to 165 mm, or 145 mm to 165 mm, or 150 mm to 165 mm, or 155 mm to 165 mm, or 160 mm to 165 mm.

[0141] In one embodiment, the beam combiner is positioned at a distance from the eyepiece assembly, including but not limited to at least 140 mm, or at least 145 mm, or at least 150 mm, or at least 155 mm.

[0142] In yet another embodiment, the viewing optics include a beam combiner that is located below the elevation turret on the outer central portion of the scope body.

[0143] In one embodiment, the beam combiner can have a partially reflective coating or surface that reflects the active display output from the integrated display system, or at least a portion thereof, toward the observer's eye on the viewing axis at the eyepiece, while having good transmission see-through in the direct viewing optics path.

[0144] In one embodiment, the beam combiner can be a cube of optical material, such as optical glass or plastic material, coated with a partially reflective coating. The coating can be a uniform, neutrally colored reflective coating, or it can be tailored with polarization, spectrally selective, or patterned coatings to optimize both the transmission and reflection characteristics at the eyepiece. The polarization and / or color of the coating can be matched to the active display, optimizing the reflectivity and efficiency of the display light path while minimizing the impact on the transmission path of the viewing optics.

[0145] Although the beam combiner is shown as a cube, in some embodiments the beam combiner can have different optical path lengths for the integrated display system and the direct viewing optics along the viewing optical axis A. In some embodiments, the beam combiner can be in the form of a plate in which a thin reflective / transmissive plate can be inserted into the direct viewing optics path transverse to the optical axis A.

[0146] In one embodiment, the position of the beam combiner can be adjusted relative to the reflective material to eliminate errors, including but not limited to parallax errors. The position of the beam combiner can be adjusted using a screw system, a wedge system, or other suitable mechanism.

[0147] In one embodiment, the position of the beam combiner can be adjusted relative to the erection tube to eliminate errors, including but not limited to parallax errors.

[0148] Corrector Lens System

[0149] In one embodiment, the observation optics can include a collector lens system 1220 for collecting light from the active display. In one embodiment, the observation optics include an optical system based on the use of optical lenses as part of one or more lens cells, including the lens itself and the lens cell body in which the lens is mounted. In one embodiment, the lens cell includes a precisely formed body, generally cylindrical or disc-shaped, that has a central opening for mounting the lens in alignment with the optical axis of a larger optical system. The cell body can also be said to have its own alignment axis, which will ultimately be aligned with the optical axis of the larger optical system when the lens cell is mounted therein. Furthermore, the lens cell functions as a "holder" for the lens, a mechanism by which the lens can be mounted to the larger optical system, and (ultimately) a means for manipulating the lens within that optical system.

[0150] In one embodiment, the integrated display system comprises a collector lens system, also referred to as a lens system, hi one embodiment, the collector lens system comprises an inner lens cell and an outer lens cell.

[0151] reflective material

[0152] In one embodiment, the viewing optics comprises reflective material 1222. In one embodiment, the reflective material 1222 is a mirror. In one embodiment, the viewing optics comprises one or more mirrors. In one embodiment, the integrated display system comprises two, three, four or more mirrors.

[0153] In one embodiment, the mirror is positioned at an angle of 30° to 60°, or 30° to 55°, or 30° to 50°, or 30° to 45°, or 30° to 40°, or 30° to 35° relative to the display's emitted light.

[0154] In one embodiment, the mirror is positioned at an angle of 30° to 60°, or 35° to 60°, or 40° to 60°, or 45° to 60°, or 50° to 60°, or 55° to 60° relative to the display's emitted light.

[0155] In one embodiment, the mirror is positioned at an angle of at least 40°. In one embodiment, the mirror is positioned at an angle of 45° relative to the display emission.

[0156] In one embodiment, the position of the mirror can be adjusted relative to the beam combiner to eliminate errors, including but not limited to parallax errors.

[0157] In one embodiment, the position of the mirror can be adjusted relative to the active display to eliminate errors, including but not limited to parallax errors.

[0158] In one embodiment, the display for generating the digital image is injected into a first focal plane of the main body, such that the digital image in the first focal plane is not bound by the movement of the erecting tube.

[0159] In one embodiment, the active display is configured to emit light in a direction substantially parallel to the optical axis of the viewing scope.

[0160] In one embodiment, the active display is configured to emit light in a direction substantially perpendicular to the optical axis of the viewing scope.

[0161] In one embodiment, the mirror is angled at approximately 45 degrees to the display's emitted light.

[0162] In one embodiment, the display and mirror are located on a common side of the main body of the viewing optics.

[0163] In one embodiment, the display and mirror are located on opposite sides of the viewing optics body.

[0164] All publications and patents mentioned in the above specification are incorporated herein by reference. Various modifications and variations of the described compositions and methods will become apparent to those skilled in the art without departing from the scope and spirit of the invention. Those skilled in the art will readily appreciate that the present invention can be constructed from a variety of materials and in a variety of different ways. Although the present invention has been described in connection with specific preferred embodiments, it should be understood that the invention should not be unduly limited to such specific embodiments. While preferred embodiments have been described in detail and illustrated in the accompanying drawings, it will be apparent that various further modifications are possible without departing from the scope of the invention as set forth in the appended claims. Indeed, various modifications of the described modes for carrying out the invention that are obvious to those skilled in the art of shooting, computers, or related fields are intended to be within the scope of the appended claims. [Explanation of symbols]

[0165] 810 Cover 820 Observation Window 830 Enabler 840 frames 850 Mounting Stud

Claims

1. an enabler for a viewing optic having a viewing window and a window frame surrounding at least a portion of the viewing window, the window frame having one or more mounting studs; a cover having a frame with one or more holes configured to slide over the one or more mounting studs of the window frame, a protective material configured to slide over the one or more mounting studs of the enabler, and a connector coupling the frame to the protective material; A system comprising:

2. 10. The system of claim 1, wherein the window frame has four, six, or eight mounting studs.

3. The system of claim 1 , wherein the window frame has an even number of mounting studs.

4. The system of claim 1 , wherein the window frame has six mounting studs.

5. The system of claim 1 , wherein the cover is made of a malleable material.

6. The system of claim 1 , wherein the protective material is configured to fit a window frame of the enabler.

7. The system of claim 1 , wherein the enabler is a laser range finder.

8. The system of claim 1 , wherein the one or more mounting studs have a 60° tapered head on a front surface of the stud.

9. The system of claim 1 , wherein the one or more mounting studs have a shelf at the rear of the stud.

10. 10. The system of claim 1, further comprising observation optics having a main body and an objective lens system at one end of the main body and an ocular lens system located at the other end of the main body, the enabler being coupled to a distal end of the main body.

11. The system of claim 10 , wherein the viewing optics comprises an active display configured to generate an image.

12. 12. The system of claim 11, wherein the generated image is projected onto a first focal plane of the observation optics, the first focal plane being located between the objective lens system and an erecting lens system.

13. A cover comprising a frame having one or more holes configured to slide over one or more mounting studs of a device, a protective material, and a connector coupling the frame to the protective material.

14. The cover of claim 13 , wherein the frame is made of a flexible material.

15. The cover of claim 13 , wherein the frame has six holes.

16. An enabler comprising: an observation window; and a window frame surrounding at least a portion of the observation window, the window frame having one or more mounting studs.

17. The enabler of claim 16 , wherein the one or more mounting studs have a 60° tapered head on a front surface of the stud.

18. The enabler of claim 17 , wherein the one or more mounting studs have a shelf at the rear of the stud.

19. The enabler of claim 16 , wherein the enabler is a laser range finder.

Images