Provided is a dot sighting device with large caliber for binocular vision in which sighting can be performed rapidly and accurately by minimizing parallax. The dot sighting device is attached to and detached from a mount for a heavy machine gun. In addition, by using the dot sighting device with large caliber, a user can rapidly and accurately sight and fire a target by taking into consideration types and characteristics of the target and a distance to the target.
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0. 8. A dot sighting device, comprising:
an illumination element that irradiates light to form an image;
a reflection element that reflects at least a portion of the light irradiated by the illumination element;
a connecting element formed on a portion of the dot sighting device;
a housing having a first side portion that surrounds the reflection element and a second side portion, the illumination element being disposed at the second side portion;
wherein the dot sighting device is attachable to and detachable from a mount by the connecting element;
wherein the reflection element comprises a doublet, with a first surface, an interior second surface and a third surface;
wherein a radius curvature of the second surface is greater than a radius curvature of the third surface;
wherein the radius curvature of the second surface is greater than a radius curvature of the first surface; and
wherein the interior second surface comprises an aspheric surface having a conic coefficient.
0. 1. A dot sighting device comprising:
a reflection mirror;
an illumination having a LED irradiating light to the reflection mirror and a transparent reticle that is positioned in front of the LED and forms a dot image by transmitting the light irradiated from the LED;
a fixed grille formed on a lower portion of the dot sighting device;
wherein the dot sighting device is attached to and detached from a mount for a heavy machine gun by the fixed grille;
wherein the reflection mirror comprises a doublet, with a first surface, an interior second surface and a third surface, with the first surface and third surface being spherical, wherein the interior second surface of the reflection mirror comprises a LED reflection surface;
wherein a radius curvature of the first and third surfaces satisfies the following equation:
wherein D1 denotes a refractive power of the first surface D2 denotes a refractive power of the third surface, d denotes a distance between the centers of the first and third surfaces, R1 denotes a radius curvature of the first surface, R3 denotes a radius curvature of the third surface, and n denotes a refractive index of the material.
0. 2. The dot sighting device of
0. 3. The dot sighting device of
0. 4. A dot sighting device comprising:
a reflection mirror;
an illumination having a LED irradiating light to the reflection mirror and a transparent reticle that is positioned in front of the LED and forms a dot image by transmitting the light irradiated from the LED;
a fixed grille formed on a lower portion of the dot sighting device;
wherein the dot sighting device is attached to and detached from a mount for a heavy machine gun by the fixed grille;
the dot sighting device further comprising a reticle selection unit connected to the illumination unit, wherein the transparent reticle is formed on a plane perpendicular to a reticle rotation axis that extends from the reticle selection unit and penetrates the illumination unit, thus being able to rotate based on the reticle rotation axis by rotation of the reticle selection unit, and a plurality of reticles according to a target are formed on the transparent reticle on the same radial axis around the reticle rotation axis, and one of the reticles corresponding to the target is selected by rotating the reticle selection unit according to the target;
wherein the reticle rotation axis comprises, around a reticle rotation connection axis, a rotation axis on an illumination unit side having a convex-concave portion with a plurality of convexes-concaves corresponding to a distance to a point of impact; and a rotation axis on a reticle selection unit side that has protrusions coupled to desired convexes-concaves of the convex-concave portion on an end thereof and the other end of which is connected to the transparent reticle,
wherein the rotation axis on the illumination unit side and the rotation axis on the reticle selection unit side are separated from each other by pulling the reticle selection unit, and then the reticle selection unit is rotated so as to couple a desired convex-concave corresponding to the distance to the point of impact of the convex-concave portion of the rotation axis on the illumination unit side with the protrusion of the rotation axis on the reticle selection unit side.
0. 5. A dot sighting device comprising:
a reflection mirror;
an illumination having a LED irradiating light to the reflection mirror and a transparent reticle that is positioned in front of the LED and forms a dot image by transmitting the light irradiated from the LED;
a fixed grille formed on a lower portion of the dot sighting device, wherein the dot sighting device is attached to and detached from a mount for a heavy machine gun by the fixed grille;
wherein the upper plate comprises a protective window; a reflection mirror; and an illumination unit, and
wherein the lower plate comprises: a fixed grille formed on a lower portion of the dot sighting device;
a bullet path adjustment handle installed at a side surface of the dot sighting device;
a click control bolt that connects the upper and lower plates and sets an origin point;
a bullet path adjustment body that is accommodated in a bullet path adjustment body accommodation unit formed in the lower plate and is connected to the upper plate by fixing an end on the lower plate side of the click control bolt to an upper portion of a plate connection rotation axis penetrating a side surface of the lower plate;
a bullet path adjustment axis that comprises a bullet path adjustment portion positioned on a bullet path adjustment axis contact portion at an end of the bullet path adjustment body, and penetrates the lower plate, thereby being connected to the bullet path adjustment handle;
a connection pin of the bullet path adjustment body and the lower plate, penetrating the other end of the bullet path adjustment body and the lower plate from a side surface of the lower plate; thereby connecting the bullet path adjustment body and the lower plate; and
a spring accommodation portion formed in a top surface of the lower plate on the bullet path adjustment axis contact portion side based on the connection pin,
wherein the spring accommodation portion accommodates a spring, thereby pushing the upper plate and the lower plate apart from each other,
wherein the bullet path adjustment body is rotatable around the upper/lower plate connection rotation axis, wherein the bullet path adjustment axis contacts a top surface of the bullet path adjustment axis contact portion of the bullet path adjustment body, and comprises a bullet path adjustment portion having a plurality of contact surfaces each having a different normal distance from the center of the bullet path adjustment axis, corresponding to a distance to a target,
wherein, in the bullet path adjustment portion, by rotating the bullet path adjustment handle, a contact surface corresponding to a distance to a desired target contacts the bullet path adjustment axis contact portion.
0. 6. A dot sighting device comprising:
a reflection mirror;
an illumination having a LED irradiating light to the reflection mirror and a transparent reticle that is positioned in front of the LED and forms a dot image by transmitting the light irradiated from the LED;
a fixed grille formed on a lower portion of the dot sighting device,
wherein the dot sighting device is attached to and detached from a mount for a heavy machine gun by the fixed grille;
the dot sighting device further comprising a reticle selection unit connected to the illumination unit, wherein the transparent reticle is formed on a plane perpendicular to a reticle rotation axis that extends from the reticle selection unit and penetrates the illumination unit, thus being able to rotate based on the reticle rotation axis by rotation of the reticle selection unit, and a plurality of reticles are formed on the transparent reticle on the same radius axis around the reticle rotation axis, wherein the reticles are formed closer to the reticle rotation axis as a distance to the corresponding point of impact is farther, and one of the reticles is selected by rotating the reticle rotation unit according to a distance to the target
wherein the reticle rotation axis comprises, around a reticle rotation connection axis, a rotation axis on an illumination unit side having a convex-concave portion with a plurality of convexes-concaves corresponding to a distance to a point of impact; and a rotation axis on a reticle selection unit side that has protrusions coupled to desired convexes-concaves of the convex-concave portion on an end thereof and the other end of which is connected to the transparent reticle,
wherein the rotation axis on the illumination unit side and the rotation axis on the reticle selection unit side are separated from each other by pulling the reticle selection runt, and then the reticle selection unit is rotated so as to couple a desired convex-concave corresponding to the distance to the point of impact of the convex-concave portion of the rotation axis on the illumination unit side with the protrusion of the rotation axis on the reticle selection unit side.
0. 7. The dot sighting device of
0. 9. The dot sighting device of claim 8, wherein the width of the reflection element increases from a point proximal the illumination element to a point proximal the reflection element.
0. 10. The dot sighting device of claim 8 wherein the housing includes sidewalls.
0. 11. The dot sighting device of claim 10, wherein a height of the sidewalls at the first side portion is higher than a height of the sidewalls at the second side portion.
0. 12. The dot sighting device of claim 11, wherein the height of the sidewalls reduces from the first side portion to the second side portion.
0. 13. The dot sighting device of claim 10, wherein the housing includes a top portion connecting the sidewalls.
0. 14. The dot sighting device of claim 13, wherein the top portion is disposed at the first side portion.
0. 15. The dot sighting device of claim 14, where the top portion is not disposed at the second side portion.
0. 16. The dot sighting device of claim 10, wherein a light ray path extending from the illumination element to the reflection element has a height greater than a height of the sidewalls in at least one location.
0. 17. The dot sighting device of claim 8, wherein
the doublet includes a first lens having the first surface and a second lens having the third surface, and
the interior second surface is disposed between the first lens and the second lens.
0. 18. The dot sighting device of claim 8, wherein the radius curvature of the third surface is greater than the radius curvature of the first surface.
0. 19. The dot sighting device of claim 8, wherein the first and third surfaces are spherical.
0. 20. The dot sighting device of claim 8, wherein the interior second surface reflects the light irradiated by the illumination element.
0. 21. The dot sighting device of claim 8, wherein the light irradiated by the illumination element passes through a reticle before being reflected by the reflection element.
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Referring to
The reticle rotation axis 37 penetrates the center axis 37′ of the revolving transparent reticle 35, and the revolving transparent reticle 35 is fixed to the reticle rotation axis 37 and rotates according to the rotation of the reticle rotation axis 37. Thus, users can rapidly select a reticle for forming a dot image appropriate for a target by rotating the reticle selection unit 21. As a result, sighting and firing can be rapidly and accurately performed.
When gravity is taken into consideration, the farther the distance to the target, the greater an angle formed between a gun barrel and a horizontal plane should be. Thus, in the revolving transparent reticle 35 of
For example, if the sighting baseline 41 is a baseline with respect to a target 100 m away, the reticle 39′A with respect to the target 100 m away from a shooter is formed on the sighting baseline 41. In addition, the reticle 39′B with respect to a target 200 m away from the shooter is formed towards the center axis 37′ as much as pre-set distance from the sighting baseline 41. In addition, the reticle 39′C with respect to a target 400 m away, the reticle 39′D with respect to a target 800 m away, the reticle 39E with respect to a target 1200 m away, and the reticle 39′F with respect to a target 1600 m away are formed towards the center axis 37′ as much as pre-set distances.
The reticle rotation axis 37 penetrates the center axis 37′ of the revolving transparent reticle 35, and the revolving transparent reticle 35 is fixed to the reticle rotation axis 37 and rotates according to the rotation of the reticle rotation axis 37. Thus, users can rapidly select a reticle for forming a dot image appropriate for a target by rotating the reticle selection unit 21, taking into consideration a distance to the target. As a result, sighting and firing call be rapidly and accurately performed.
In Examples 1 and 2, the center axis 37′ of the revolving transparent reticle 35 is formed at the center of the revolving transparent reticle 35. However, the center axis 37′ can be formed at a position deviated from the center of the revolving transparent reticle 35 in the two examples described above. That is, taking into account the distance to the target, the center axis 37′ can be formed at a position that is close to a reticle to be used for a long distance target in advance.
To maintain stereoscopic vision, i.e., a sense of distance by making the width of a reflection mirror greater than a distance between both eyes of a user, a virtual image of a dot should be formed within binocular fixation distance. As a result, a target and a dot sighted at the target can be accurately viewed without eye strain.
To form a dot at a binocular fixation point during binocular fixation, i.e., to position an image of a reticle by the reflection mirror at the binocular fixation point, a change of position should be performed by moving an illumination unit, particularly, a reticle acting as a point light source, forward or backward.
For example, in three cases of a 100 m reticle, a 200 m reticle, and a 400 m reticle, an operation in which a position of the point light source of the illumination unit is finely moved to a direction of a focal point of the reflection mirror is needed.
A distance of stereoscopic vision in which human eyes can have a three-dimensional effect is about 240 m according to Hermann von Helmholtz. Thus, 800 m, 1200 m and 1600 m reticles may be positioned at the focal point of the reflection mirror in order to position a dot image after reflection from the reflection mirror at infinity in front of the eves, as in the case of the 400 m reticle.
When the focal point of the reflection mirror is f mm, a shift s of a z m reticle from the focal point of the reflection mirror to the reflection mirror can be calculated using Equation 2 below, and examples of the calculation are shown in the following table.
TABLE 1
50 m
100 m
200 m
400 m
Reticle type
reticle
reticle
reticle
reticle
Calculation example of a
1.05 mm
0.53 mm
0.26 mm
0.13 mm
shift of a reticle in a re-
flection mirror having an
actual focal distance of
229 mm
* The above table shows calculation of shifts of 4 types of reticles from the focal point of the reflection mirror to the reflection mirror in the reflection mirror having an actual focal distance of 229 mm
To move the reticle taking into account the shift, a reticle rotation axis 37 as illustrated in
Referring to
When a user pulls the reticle selection unit 21, the rotation axis 65 on the illumination unit side and the rotation axis 67 on the reticle selection unit side are separated from each other, and the protrusions 63 rotate as the rotation axis 67 on the reticle selection unit side rotates by rotating the reticle selection unit 21. When the protrusions 63 are positioned to correspond to the convexes-concaves 61, which corresponds to a desired shift distance of the reticle, the protrusions 63 and the convexes-concaves 61 are coupled if the reticle selection unit 21 is released.
Thus, a user can rapidly amend a dot image corresponding to a distance during stereoscopic vision. As a result, sighting and firing can be rapidly and accurately performed.
In the present embodiments, the path of the bullet is adjusted by rotating a bullet path adjustment handle 43 instead of using the reticle selection unit. The dot sighting devices according to the current embodiments of the present invention in which the path of the bullet can be adjusted will now be described with reference to the following drawings.
A lower plate 6 illustrated in
Referring to
Thus, the upper/lower click control bolt 17 can rotate around on (or screw on) the upper/lower plate connection rotation axis 49, and the bullet path adjustment body 47 can rotate around on the connection pin 59.
In addition, the bullet path adjustment body 47 is connected to the upper plate 4 through the upper/lower click control bolt 17 fixed to the upper plate 4, and is connected to the lower plate 6 by the connection pin 59.
A bullet path adjustment axis 51 passes through the lower plate 6, passes by and contacts a bullet path adjustment axis contact portion 48 of the bullet path adjustment body 47, and is connected to the bullet path adjustment handle 43. A bullet path adjustment portion 53 of the bullet path adjustment axis 51 contacts the bullet path adjustment axis contact portion 48 of the bullet path adjustment body 47, facing each other.
Spring accommodation portions 57 are formed in a top surface of the lower plate 6, at a position adjacent to the bullet path adjustment body accommodation unit 55 and parallel to the connection pin 59, as illustrated in
A configuration for adjusting the bullet path of the dot sighting device according to the present embodiment will now be described with reference to
Referring to
The springs of the spring accommodation portions 57 push the upper and lower plates 4 and 6 away from each other, and thus a force, directed towards the upper plate 4 from the lower plate 6 acts on the bullet path adjustment body 47 connected to the upper plate 4 by the upper/lower click control bolt 17. That is, a force that rotates towards causes the upper plate 4 based to rotate upward centering on the connection pin 59 continuously acts on the bullet path adjustment body 47 connected to the upper plate 4. Thus, when the contact surface contacting the bullet path adjustment axis contact portion 48 in the bullet path adjustment portion 53 is changed, a distance between the upper plate 4 and the lower plate 6 is changed.
For example, when the bullet path adjustment axis contact portion 48 of the bullet path adjustment body 47 contacts the contact surface 53d having a relatively long normal distance from the center of rotation 60, and then contacts the contact surface 53a having a relatively short normal distance from the center of rotation 60, the distance between the upper plate 4 and the lower plate 6 becomes closer. In the opposite case, the distance between the upper plate 4 and the lower plate 6 becomes farther.
Since the lower plate 6 is fixed to the mount for a heavy machine gun, the distance between the upper plate 4 and the lower plate 6 is changed by a fine change in a slope of the upper plate 4 with respect to the fixed lower plate 6. By calculating an amendment a corrective angle according to a distance in advance, each of the contact surfaces 53a through 53e of the bullet path adjustment portion 53 is formed at a normal distance corresponding to the amendment corrective angle. Thus, when a corresponding contact surface is selected by rotating the bullet path adjustment handle 43, the slope of the upper plate 4 is changed according to the distance to the target. Then, when the target is sighted through the reflection mirror of the upper plate 4 having the changed slope and the protective window, the same amendment corrective effect according to a distance as in Example 2 of Embodiment 1 can be obtained.
As described above, in the dot sighting device having large caliber and using the reflection mirror, according to the present invention, there is a need to address the problem of parallax according to aberration.
A LED dot is reflected from a R2 surface and emitted to the outside. In this regard, when incident on the reflection mirror, the LED dot is transmitted through a R1 surface, is reflected from the R2 surface, and then is transmitted through the R1 surface again, and consequently, the LED dot is incident on the eyes of an observer. That is, since the LED dot is transmitted through the R1 surface twice and is transmitted through the R2 surface once, a further degree of freedom in design is provided. Due to this, parallax can be minimized. To decrease magnification occurrence when an external target point is focused on the eyes of the observer, the reflection mirror can be configured to become an afocal system. The configuration applies to radius curvature of first and third surfaces by using Equation 1 below.
When d denotes a distance between centers (center thickness) of first and third surfaces of a doublet, R1 denotes radius curvature of the first surface, R3 denotes radius curvature of the third surface, and n denotes a refractive index of the material, the following equation is obtained.
wherein D1 denotes a refractive power of the first surface and D2 denotes a refractive power of the third surface. By using the reflection mirror according the present embodiment, it was confirmed that parallax was reduced by 80% or greater.
The following three graphs
According to the present invention, a dot sighting device with large caliber for a heavy machine gun in which binocular vision is possible can be obtained.
In addition, according to the present invention, a target can be rapidly sighted taking into consideration distance amendment, and thus firing can be performed taking into consideration differences according to a distance of the target.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims.
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