A weapon sight with a tapered housing

Abstract

A method and system for a weapon sight having a tapered housing is disclosed. The housing may be configured to enclose a portion of an optical bench and / or an adjuster assembly within the weapon sight. The housing may include an outer shell, a first window, and a second window. The first window may define a first region. The second window may define a second region. The second region may be larger than the first region, for example, such that the outer shell tapers outward from the first opening to the second opening. The outer shell may define first and second walls extending between the first and second openings on opposite sides of an optical path of the weapon sight. The first and second walls may slope outward from the first window to the second window.

Description

Background Art

[0001] Identifying and focusing on a distant object can be facilitated by the use of a sight. Sights can be employed, for example, in small arms such as bows, rifles, shotguns, and pistols, among others, as well as in large weapons such as mounted machine guns, grenade launchers, and the like, and can assist an operator in finding and maintaining focus on a target.

[0002] Sights have been developed in many different forms and utilize various features. For example, sights have been developed that present a hologram to an operator that can assist the operator in identifying the position of an object and focusing on it.

Summary of the Invention

Means for Solving the Problems

[0003] A method and system for a weapon sight having a tapered housing are disclosed. The weapon sight may include a base, an optical bench, an adjuster assembly, and / or a housing. The base may be configured to be removably fixed to a weapon. The optical bench may be configured to be attached to the base. The optical bench may include a plurality of optical elements attached to an integrated chassis. The weapon sight may be a holographic weapon sight. The plurality of optical elements may include a laser diode, a mirror, a collimating optic, and / or a diffraction grating. The laser diode may be configured to reconstruct a holographic reticle. The adjuster assembly may be configured to be attached to the base. The adjuster assembly may include a first adjuster configured to adjust the position of the holographic reticle horizontally. The adjuster assembly may include a second adjuster configured to adjust the position of the holographic reticle vertically.

[0004] The housing may be configured to enclose a part of the optical bench and / or the adjuster assembly within the weapon sight. The housing may include an outer shell, a first window, and a second window. The first window may be a rear window facing the user of the weapon sight. The second window may be a front window facing the target. The outer shell may define a first opening and a second opening. The first window may be disposed in the first opening, and the second window may be disposed in the second opening. The first window may define a first region. The second window may define a second region. The second region may be larger than the first region, for example, such that the outer shell tapers outwardly from the first opening toward the second opening. The outer shell may be tapered at an angle determined based on the distance from the user's eye to the first window and the horizontal field of view of the weapon sight. The outer shell may be tapered such that a shielded portion of the horizontal field of view (e.g., a portion shielded by the housing) is less than a predetermined threshold of the horizontal field of view.

[0005] The outer shell may define a first wall and a second wall extending between the first opening and the second opening on opposite sides of the optical path of the weapon sight. The first wall and the second wall may slope outwardly from the first window toward the second window. The first wall may be at a first distance D1 from the second wall at the first opening. The first wall may be at a second distance D2 from the second wall at the second opening. D2 may be larger than D1. The first region may be configured based on D1. The second region may be configured based on D2.

[0006] The outer shell may include a first adjuster hole for receiving a portion of the adjuster assembly. The outer shell may define a recess for receiving the outer surface of the optical bench. The outer shell may include a lower portion and an upper portion. The lower portion may be configured to enclose a power source, the adjuster assembly, and / or a portion of the optical bench. The upper portion may include the first adjuster hole. The upper portion may be configured to enclose a portion of the optical bench.

Brief Description of the Drawings

[0007]

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DETAILED DESCRIPTION OF THE INVENTION

[0008] A method and system for a weapon sight with a tapered housing are disclosed. The holographic sight may employ a series of optical components to create a hologram for presentation to an operator. For example, the holographic sight may employ a laser diode that generates a light beam, a mirror that deflects the light beam, a collimating optical component that receives the deflected light beam and reflects collimated light, and a grating that receives the collimated light and diffracts the light toward an image hologram recorded by an image, whereby the image is displayed to the operator of the sight.

[0009] A holographic sight can position optical components relative to each other by fixing the optical components to structures within the holographic sight. For example, optical components such as a collimating optical component and a hologram image may be fixed inside the housing of the holographic sight. The mirror may be disposed on a pedestal extending from a mount to which the sight housing is attached. The grating may be fixed to a movable plate configured to rotate relative to the sight housing.

[0010] The sight housing can determine the field of view. The field of view can be defined as the width and / or height of the view at a predetermined distance from the weapon sight. The walls of the sight housing may be inclined from the operator side to the target side. The size of the window of the sight housing can be configured to achieve a specific field of view (e.g., horizontal and / or vertical directions). For example, the size of the window of the sight housing can be adjusted to achieve the desired field of view (e.g., horizontal and / or vertical directions) of the weapon sight.

[0011] The applicant of the present application discloses a weapon sight that employs a tapered housing herein. The housing may be tapered such that the display area closest to the operator is smaller than the display area closest to the target. In other words, the contour of the housing (e.g., the outer wall) may be tapered outward from the rear window (e.g., the operator-side window) toward the front window (e.g., the target-side window) so that the field of view is larger than when the contour of the housing is a straight line (e.g., when it is not tapered). For example, the walls of the housing may be angled along the field of view. In other words, the walls of the housing may be farther apart at the front window than at the rear window. The front window of the housing may be larger than the rear window of the housing. For example, when the front window of the housing is larger than the rear window of the housing, the field of view may be larger than when the rear window and the front window are the same size. The tapered housing can minimize the obstruction of the scene observed by the operator of the weapon. The tapered housing can expand the view of the front battle area and result in faster target acquisition by the operator of the weapon. The tapered housing can provide a view with a better awareness of the surrounding environment.

[0012] Figures 1 - 11B illustrate an exemplary weapon sight 100. The weapon sight 100 can be a modular weapon sight. The weapon sight 100 can include a base 110, an optical bench 120, an adjuster assembly 130, a housing 140, and / or a hood 150. The base 110, the optical bench 120, the adjuster assembly 130, the housing 140, and the hood 150 may be configured as separate modules. For example, the base 110 may be referred to as the base module, the optical bench 120 may be referred to as the optical bench module, the adjuster assembly 130 may be referred to as the adjuster assembly module, the housing 140 may be referred to as the housing module, and the hood 150 may be referred to as the hood module.

[0013] The base 110 may be configured to be attached to a weapon (e.g., a handgun, a rifle, a shotgun, a bow, etc.). For example, the base 110 may be configured to be attached (e.g., removably attached) to the upper surface (e.g., a rail) of the weapon. The base 110 may include a lever arm 112 that is attached (e.g., pivotally attached) to the base 110. The lever arm 112 may be configured to be operated between an open position and a closed position such that the base 110 is configured to be removably attached to the weapon. For example, the lever arm 112 may be configured to engage complementary features on the upper surface of the weapon. The base 110 may define an upper surface 114. The optical bench 120 and the adjuster assembly 130 may be fixed to the upper surface 114 of the base 110.

[0014] The base 110 may define a first extension 116 and a second extension 118. The first extension 116 and the second extension 118 may be present on both sides of the base 110. The first extension 116 may include a first aperture 111. The first aperture 111 may be configured to receive a part of the adjuster assembly 130. For example, a part of the adjuster assembly 130 may be accessible through the first aperture 111. The second extension 118 may include a plurality of second apertures 113. The plurality of second apertures 113 may be configured to receive respective buttons 172 of the electronics module 170. For example, the buttons 172 may be accessible through the plurality of second apertures 113.

[0015] The weapon sight 100 may include a battery module 160. The battery module 160 may be configured to store a battery (not shown) configured to supply power to a laser (e.g., the laser diode 534 shown in FIGS. 10 - 11).

[0016] The weapon sight 100 can be a holographic weapon sight. The optical bench 120 can include a plurality of optical elements. The optical bench 120 (e.g., the plurality of optical elements) may be configured to reconstruct a holographic reticle. For example, the plurality of optical elements can include a laser diode, a mirror, a collimator, a grating, and / or a hologram plate. The optical bench 120 (e.g., the plurality of optical elements) can define an optical path. For example, the relative positions of the plurality of optical elements can define the optical path.

[0017] The optical bench 120 can include an optical bench base 125, a support member 121, and a unitary optical component carrier 127. The support member 121 may be integrally formed with the optical bench base 125 and may extend upward from the optical bench base 125. The unitary optical component carrier 127 may be integrally formed with the support member 121. The optical bench base 125 may be fixed to the base 110. For example, the optical bench base 125 may be fixed to the base 110 using screws that extend through an opening in the optical bench base 125 into a corresponding receiving portion of the base 110. The support member 121 and / or the unitary optical component carrier 127 may be suspended from the base 110 by the optical bench base 125.

[0018] The optical bench 120 can include one or more flexible (e.g., compliant) portions such that the unitary optical component carrier 127 can be moved horizontally and / or vertically relative to the optical bench base 125 and / or the base 110. One or more flexible portions of the optical bench 120 can include a flexible member 123, a first horizontal member 126, a second horizontal member 128, and / or a joint member 129. One or more flexible portions of the optical bench 120 can be adapted to allow adjustment of the position of the unitary optical component carrier 127 relative to the optical bench base 125 and / or the base 110, thereby enabling adjustment of the position of the hologram in the field of view of the weapon sight 100. For example, the flexible member 123 can be configured to flex (e.g., twist and / or rotate) to allow horizontal movement (e.g., adjustment) of the unitary optical component carrier 127. The joint member 129 can flex to allow vertical movement (e.g., adjustment) of the unitary optical component carrier 127. The optical bench 120 can include one or more non-compliant (e.g., non-flexible) portions. One or more non-compliant portions of the optical bench 120 can include a support member 121, a first wall 122, and a second wall 124.

[0019] The adjuster assembly 130 may be configured to adjust the positioning of the optical bench 120. For example, the adjuster assembly 130 may include a first adjuster 132 and a second adjuster 134. The first adjuster 132 may be configured to adjust the position of the holographic reticle in the horizontal direction. For example, the rotation of the first adjuster 132 may result in the horizontal adjustment of the holographic reticle. The second adjuster 134 may be configured to adjust the position of the holographic reticle in the vertical direction. For example, the rotation of the second adjuster 134 may result in the vertical adjustment of the holographic reticle. The first adjuster 132 may be accessible (e.g., rotatable) via the base 110. The second adjuster 134 may be accessible (e.g., rotatable) via the housing 140.

[0020] The distal portion 131 of the first adjuster 132 may abut against the optical bench 120. The distal portion 133 of the second adjuster 134 may abut against the optical bench 120. The distal portion 131 of the first adjuster 132 may be configured to move a part of the optical bench 120, for example, without changing the relative positions of a plurality of optical elements with respect to each other. In other words, the operation of the first adjuster 132 may adjust the position of the holographic reticle without affecting the optical path of the optical bench 120.

[0021] The housing 140 may be configured to enclose the optical bench 120, the adjuster assembly 130, the battery module 160, and / or the electronics module 170. The housing 140 may define an upper portion 141 and a lower portion 143. The lower portion 143 may be configured to enclose the adjuster assembly 130, the battery module 160, the electronics module 170, and the lower portion of the optical bench 120. The upper portion 141 may be configured to enclose the upper portion of the optical bench 120. The housing 140 (e.g., the lower portion 143) may define a first aperture (e.g., the first aperture 330 shown in FIGS. 12 and 13, etc.) and a second aperture 144. The first aperture may be configured to receive a part of the battery module 160. The second aperture 144 may be configured to receive a part of the second adjuster 134. The housing 140 may define an upper portion 141 and a lower portion 143.

[0022] The housing 140 (e.g., the upper portion 141) may define a front window 146 and a rear window 148. The front window 146 may represent the target-side window of the weapon sight 100. The rear window 148 may represent the operator-side window of the weapon sight 100. For example, a user of the weapon sight 100 may look through the rear window 148 and then the front window 146 when using the weapon sight 100. The hologram of the weapon sight 100 may appear to be projected through the front window 146 of the weapon sight 100. The housing 140 may define the field of view of the weapon sight 100. For example, the front window 146 and the rear window 148 may define the field of view of the weapon sight. In other words, the respective sizes of the front window 146 and the rear window 148 may define the field of view of the weapon sight.

[0023] The hood 150 may be configured to protect the housing 140 (e.g., the upper portion 141 of the housing 140). For example, the hood 150 may be fixed to the base 110. When the hood 150 is fixed to the base 110, the hood 150 may surround the upper portion 141 of the housing 140.

[0024] Figures 12 - 17 depict an exemplary housing 300 for a weapon sight (e.g., the weapon sight 100 shown in Figures 1 - 11B). The housing 300 (e.g., the housing 140 shown in Figures 1 - 9) may be configured to enclose the optical elements of the weapon sight. For example, the housing 300 may define a cavity 370. The cavity 370 may be configured to receive an optical bench and / or an adjuster assembly. The housing 300 may define an outer shell 305. The outer shell 305 may define the outer surface of the housing 300. The outer shell 305 may define a first window opening 365 and a second window opening 355.

[0025] The outer shell 305 may include an upper portion 310 (e.g., the upper portion 141 shown in FIGS. 1-11B, etc.) and a lower portion 320 (e.g., the lower portion 143 shown in FIGS. 1-11B, etc.). The lower portion 320 may be configured to enclose the lower parts of an adjuster assembly (e.g., the adjuster assembly 130 shown in FIGS. 1-11B, etc.), a battery module (e.g., the battery module 160 shown in FIGS. 1-11B, etc.), an electronics module (e.g., the electronics module 170 shown in FIGS. 1-11B), and an optical bench (e.g., the optical bench 120 shown in FIGS. 1-11B). The upper portion 310 may be configured to enclose the upper part of the optical bench. The housing 300 (e.g., the lower portion 320) may define a first aperture 330 and a second aperture 340 (e.g., the second aperture 144 shown in FIG. 3, etc.). The first aperture 330 may be configured to receive a part of the battery module. The second aperture 340 may be configured to receive a part of the adjuster assembly (e.g., the second adjuster 134 as shown in FIG. 1, etc.). For example, the housing 300 may define a cavity 370. The cavity 370 may be configured to receive the optical bench and / or the adjuster assembly. The cavity 370 may be defined within the upper portion 310 and the lower portion 320.

[0026] The housing 300 (e.g., the upper portion 310) may include a front window 350 (e.g., the front window 146 shown in FIG. 1, etc.) and a rear window 360 (e.g., the rear window 148 shown in FIG. 2, etc.). The front window 350 may be the window on the target side. For example, the front window 350 may face the target when the weapon sight is attached to the weapon. The rear window 360 may be the operator-side window. For example, the rear window 360 may face the operator of the weapon (e.g., the user) when the weapon sight is attached to the weapon. The rear window 360 may be located in the first window opening 365. The first window opening 365 may be configured to receive the rear window 360. For example, the rear window 360 may be fixed within the first window opening 365. The front window 350 may be located in the second window opening 355. The second window opening 355 may be configured to receive the front window 350. For example, the front window 350 may be fixed within the second window opening 355.

[0027] The housing 300 may be tapered. The housing 300 (e.g., the upper portion 310) may include a first wall 312 and a second wall 314. The first wall 312 and the second wall 314 may extend between the front window 350 and the rear window 360, for example, on opposite sides of the optical path. The first wall 312 and the second wall 314 may be inclined outward from the rear window 360 toward the front window 350 (e.g., may be angled). At the rear window 360, the first wall 312 may be at a distance D1 from the second wall 314. At the front window 350, the first wall 312 may be at a distance D2 from the second wall 314. D2 may be greater than D1. In other words, the first wall 312 and the second wall 314 may be farther apart at the front window 350 than at the rear window 360.

[0028] The housing 300 may be tapered at an angle A1. For example, the first wall 312 and the second wall 314 may be tapered at an angle A1. The angle A1 may be determined based on the distance between the user's eye (e.g., the user's eye 500 shown in FIG. 19) and the rear window 360. The angle A1 may be determined based on a predetermined horizontal field of view for a weapon sight. The predetermined horizontal field of view may be associated with a specific use case. For example, the weapon sight may be configured for a specific weapon and / or a specific use case. The specific weapon and / or the specific use case may require a specific horizontal field of view. The angle A1 may be determined based on the specific weapon and / or the specific use case. A user of a specific weapon may position their eye at a predetermined distance from the rear window 360. The angle A1 may be determined using the predetermined distance and the specific horizontal field of view such that the occlusion of the field of view (e.g., horizontal occlusion) is minimized. When the horizontal occlusion of the field of view is minimized, the situation awareness can be maximized for the user. For example, the angle A1 may be determined such that the horizontal area occluded by the housing 300 is less than a predetermined threshold for the specific horizontal field of view. The predetermined threshold may be defined by one or more requirements of the specific weapon.

[0029] The front window 350 may determine the field of view for the weapon sight. For example, the size of the front window 350 may correlate with the field of view of the weapon sight. The front window 350 may be larger than the rear window 360. For example, the front window 350 may be wider than the rear window 360. The length of the rear window 360 may be configured based on D1. The length of the front window 350 may be configured based on D2. The length of the front window 350 may be larger than the length of the rear window 360. The front window 350 and the rear window 360 may have the same height. When the front window 350 is larger than the rear window 360, the occlusion by the walls 312, 314 can be reduced compared to when the front window 350 is the same size as the rear window 360.

[0030] The housing 300 may be configured to protect the weapon sight. The housing 300 may be configured to be installed, adjusted, and / or replaced without affecting the optical path of the weapon sight. For example, the housing 300 may be a replacement housing for the weapon sight.

[0031] FIG. 18 is a diagram showing an exemplary horizontal field of view and an exemplary horizontal occlusion of an exemplary weapon sight 400 (such as the weapon sight 100 shown in FIGS. 1-10). The weapon sight 400 may define a front window 402 and a rear window 404. A user of the weapon sight 400 may position the eye 450 at a particular distance from the rear window 404. When the user's eye 450 is at a distance D3 from the rear window 404, the horizontal field of view may be defined by an angle A2. The distance D3 may be about 15 cm. The angle A2 may be, for example, about 9.1 degrees when the user's eye 450 is aligned with the center of the weapon sight 400. The angle A2 may correspond to a 15.9 m field of view (e.g., horizontal) at a distance of 100 m from the weapon sight 400. A user of the weapon sight 400 may position the eye 450 off-center (e.g., horizontally). The user may be able to see through the weapon sight 400 up to an angle A3 (e.g., measured horizontally) from the center of the weapon sight 400. In other words, at an angle A3 from the center of the weapon sight 400, the user's view through the weapon sight may be occluded. The angle A3 may be about 40.9 degrees.

[0032] Figure 19 depicts an exemplary horizontal field of view and exemplary horizontal occlusion of the weapon sight 100. The housing 140 may be tapered at an angle. A user of the weapon sight 100 may position the eye 500 at a particular distance from the rear window 148. When the user's eye 500 is at a distance D3 from the rear window 148, the horizontal field of view may be defined by an angle A4. The angle A4 may be determined based on the type of weapon and the usage scenario of the weapon. The angle A4 may be determined based on the angle A4 and the distance D3. The distance D3 may be about 15 cm. The angle A4 may be, for example, about 9.1 degrees when the user's eye 500 is aligned (e.g., horizontally) with the center of the weapon sight 100. The angle A4 may correspond to a horizontal field of view (e.g., horizontally) of 15.9 m at a distance of 100 m from the weapon sight 100. The user's forward horizontal view may be occluded by the housing 140 and the hood 150 of the weapon sight 100. For example, the angle A5 may represent the horizontal area that is occluded by the housing 140 and the hood 150 of the weapon sight 100 when the user's eye 500 is positioned (e.g., horizontally) at the center of the weapon sight 100. The angle A5 may be about 2.3 degrees.

[0033] FIG. 20 depicts an exemplary vertical field of view and exemplary vertical occlusion of the weapon sight 100. A user of the weapon sight 100 may position the eye 500 at a particular distance from the rear window 148. When the user's eye 500 is at a distance D3 from the rear window 148, the vertical field of view may be defined by an angle A6. The distance D3 can be, for example, about 15 cm. The angle A6 can be, for example, about 4.3 degrees when the user's eye 500 is aligned (e.g., vertically) with the center of the weapon sight 100. The angle A6 can correspond to a 7.5 m vertical field of view (e.g., vertically) at a distance of 100 m from the weapon sight 100. The user's forward vertical view may be occluded by the housing 140 and the hood 150 of the weapon sight 100. For example, the angle A7 may represent the vertical region occluded by the housing 140 and the hood 150 of the weapon sight 100 when the user's eye 500 is positioned (e.g., vertically) at the center of the weapon sight 100. The angle A7 can be, for example, about 3.14 degrees.

[0034] FIG. 21 is a functional block diagram of an exemplary modular weapon sight 600 (e.g., the weapon sight 100 shown in FIGS. 1 - 11B) showing the physical and optical connections between the components of the weapon sight 600. The weapon sight 600 may be configured to minimize the physical connections between the components of the weapon sight 600. The hologram plate 602 may be physically connected (e.g., only thereto) to the optical bench 612. The diffraction grating 604 may be physically connected (e.g., only thereto) to the optical bench 612. The hologram plate 602 may be optically connected (e.g., only thereto) to the diffraction grating 604. The diffraction grating 604 may be optically connected to the hologram plate 602 and the collimator 606. The collimator 606 may be physically connected (e.g., only thereto) to the optical bench 612. The collimator 606 may be optically connected to the diffraction grating 604 and the transfer mirror 608. The transfer mirror 608 may be physically connected (e.g., only thereto) to the optical bench 612. The transfer mirror 608 may be optically connected to the collimator 606 and the laser diode 610. The laser diode 610 may be physically connected to the laser diode shoe 614 and the electronics module. The laser diode 610 may be optically connected to the transfer mirror 608. The laser diode shoe 614 may be physically connected (e.g., only thereto) to the optical bench 612.

[0035] The horizontal adjuster 616 may be physically connected to the optical bench 612 and the housing 622. The vertical adjuster 618 may be physically connected to the optical bench 612 and the housing 622. One or more windows 620 may be physically connected (e.g., only thereto) to the optical bench 612. The spring plunger 624 may be physically connected to the optical bench 612 and / or the base 626. The housing 622 may be physically connected to the base 626.

[0036] The electronics module 630 may be physically connected to the base 626, the user interface 628, and the battery insert 636. The user interface 628 may be physically connected to the housing 622. FIG. 21 shows the user interface 628 connected to the housing 622, but it should be understood that the user interface 628 may be physically connected to the base 626 (e.g., instead of the housing 622). The battery insert 636 may be physically connected to the battery 634 and the electronics module 630. The battery 634 may be physically connected to the battery insert 636 and the battery cap 632. The battery cap 632 may be physically connected to the battery 634 and the battery insert 636.

[0037] The terms used herein should be considered as terms of explanation rather than limitation. It is understood that those skilled in the art of the present disclosure may devise alternatives, modifications, or variations of the principles of the present invention. It is intended that all such alternatives, modifications, or variations be considered to be within the spirit and scope of the present invention as defined by the following claims.

Claims

1. A housing for a weapon sight, comprising: an outer shell defining a first opening and a second opening; a first window disposed in the first opening and defining a first region; a second window disposed in the second opening and defining a second region; wherein the second region is larger than the first region such that the outer shell is tapered outwardly from the first opening to the second opening; the outer shell defining a first wall and a second wall extending between the first opening and the second opening on an opposite side of an optical path passing through the housing, the first window, and the second window; the first wall and the second wall being inclined outwardly from the first window to the second window and following the horizontal field of view of the user based on a predetermined distance between the user's eye and the first window; the first wall and the second wall each including only one flat segment intersecting a horizontal plane extending through the optical path between the first window and the second window; A housing for a weapon sight.

2. The housing according to claim 1, wherein the first wall is at a first distance D1 from the second wall at the first opening. The housing according to claim 1, wherein the first wall is at a second distance D2 from the second wall at the second opening.

3. The housing according to claim 2, wherein D2 is greater than D1.

4. The housing according to claim 2, wherein the first region is configured based on D1 and the second region is configured based on D2.

5. The housing according to claim 1, wherein the outer shell is tapered at an angle determined based on the distance from the user's eye to the first window and the horizontal field of view of the weapon sight.

6. The housing according to claim 1, wherein the outer shell is tapered such that a shielded portion of the horizontal field of view is less than a predetermined threshold of the horizontal field of view.

7. The housing according to claim 1, wherein the first window is a rear window facing the user of the weapon sight.

8. The housing according to claim 1, wherein the second window is a front window facing the target.

9. A weapon sight having a tapered housing, comprising: a base configured to be removably fixed to a weapon; an optical bench attached to the base, a housing configured to enclose a part of the optical bench and an adjuster assembly within the firearm sight, an outer shell defining a first opening and a second opening, a first window disposed in the first opening and defining a first region, and a second window disposed in the second opening and defining a second region, the housing comprising, wherein the second region is larger than the first region such that the outer shell is tapered outwardly from the first opening to the second opening, the outer shell defining a first wall and a second wall extending between the first opening and the second opening on an opposite side of the optical path passing through the housing, the first window, and the second window, wherein the first wall and the second wall are inclined outwardly from the first window to the second window and follow the horizontal field of view of the user based on a predetermined distance between the user's eye and the first window, wherein the first wall and the second wall each include only one flat segment intersecting a horizontal plane extending through the optical path between the first window and the second window, a firearm sight.

10. The firearm sight is a holographic firearm sight comprising a laser diode for reconstructing a holographic reticle, The optical bench comprises a plurality of optical elements defining the optical path of the firearm sight, the firearm sight according to claim 9.

11. The housing is configured such that the firearm sight has a field of view of at least 15 yards wide at a distance of 100 yards, the firearm sight according to claim 9.

12. The first window is a rear window facing the user of the firearm sight, the firearm sight according to claim 9.

13. The second window is a front window facing the target, the firearm sight according to claim 9.

14. further comprising an adjuster assembly attached to the base, the outer shell comprising a first adjuster hole for receiving a part of the adjuster assembly, the firearm sight according to claim 9.

15. The adjuster assembly is, A first adjuster received by the first adjuster hole, the first adjuster being configured to adjust the position of the holographic reticle in the horizontal direction, A second adjuster received by a second adjuster hole defined by the base, the second adjuster being configured to adjust the position of the holographic reticle in the vertical direction The firearm sight according to claim 14, comprising:

16. The firearm sight according to claim 9, wherein the outer shell defines a recess for receiving an outer surface of the optical bench.

17. The firearm sight according to claim 9, wherein the outer shell includes a lower portion configured to enclose a power source, an adjuster assembly, and a part of the optical bench.

18. The outer shell includes an upper portion having the first adjuster hole, The firearm sight according to claim 14, wherein the upper portion is configured to enclose a part of the optical bench.

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