Multi-color dot sight device

The multi-color dot sight device addresses alignment issues in conventional optical sights by using multiple light sources and a refractive section with a support member, ensuring accurate aiming and visibility across varying light conditions.

WO2026147054A1PCT designated stage Publication Date: 2026-07-09OPTOWELL

Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
OPTOWELL
Filing Date
2025-12-23
Publication Date
2026-07-09

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Abstract

The present disclosure comprises: a base plate installed on an extension line in an aiming direction; a first light source which is installed on the base plate to emit a beam in the aiming direction and emits a beam of a first color; a second light source which is installed on the base plate to be spaced apart from the aiming direction and emits a beam of a second color; and a refraction part which allows the beam emitted from the first light source to pass therethrough and refracts the beam emitted from the second light source so that the beam is emitted in the aiming direction.
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Description

Multicolor dot sight device

[0001] The present disclosure relates to a multi-color dot sight device capable of selecting and inspecting a target point of an appropriate color between a red target point or a green target point depending on the application environment, and capable of preventing malfunctions caused by movement of the refraction part.

[0002] Generally, rifles are equipped with a front sight and a rear sight for accurate aiming during firing; the front sight is typically located at the top of the muzzle at the end of the barrel, while the rear sight is located on the upper surface of the main body of the firearm.

[0003] Therefore, during daytime shooting, aiming is performed by the concentric principle of aligning the holes of the front and rear sights, which requires complex processes and time such as target acquisition and verification, alignment of the sight line, and aiming, and has the problem of extremely limited field of view.

[0004] Therefore, recently, optical dot sights are being adopted rather than aiming methods using rear sights and front sights, as they simplify target acquisition, sight alignment, and aiming.

[0005] The optical dot sight has a housing with a cylindrical shape, and on the upper and front surfaces, adjustment terminals for aligning the internal barrel are located respectively. On the lower side, a fixed grille that can be attached and detached via a rail is located on the top of the rifle sight assembly, and on both ends of the housing, protective windows and an LED and a reflector are located respectively inside.

[0006] The mirror projects the observer's line of sight toward the front end of the dot sight device, and the light spot of the LED, which has a light beam of 650 nm or less, is reflected toward the rear end, allowing the observer's line of sight to be confirmed, thus enabling accurate aiming at the target.

[0007] Therefore, in conventional optical dot sight devices, when a point light source from an internal LED is reflected by a mirror and incident parallel to the observer's eye, this parallelism is aligned with the bullet firing axis of the gun barrel.

[0008] However, since a hit will not occur even if the observer aligns the LED beam dot with the target point if the parallelism of the dot sight device does not align with the bullet firing axis of the barrel, internal barrel alignment terminals with vertical and horizontal functions are provided respectively to align the optical axis of the internal barrel with the bullet firing axis of the barrel in order to align the parallelism of the dot sight device with the bullet firing axis of the barrel.

[0009] Therefore, optical dot sights require almost no time for aiming line alignment, and aiming itself only requires rapidly moving the light spot to the target. Since visibility is also secured very effectively, they have the advantage of minimizing not only the time required for aiming but also the obstruction of peripheral vision and situational awareness caused by aiming.

[0010] In addition, during night combat, an infrared indicator or infrared illumination device is attached to the upper part of the muzzle at the end of the rifle barrel to use infrared target marking or infrared illumination to increase the hit rate against targets.

[0011] Infrared illumination devices generally use LDs, LEDs, etc., that emit IR rays with a central wavelength of 850 nm, so that when aiming at a target through a dot sight, the light passes through a mirror and can be seen by an observer.

[0012] Since IR rays cannot be seen with the naked eye, infrared glasses or similar devices must be worn to confirm them.

[0013] The background technology of the present invention is disclosed in Korean Published Patent Application No. 10-0669859 (published Jan. 16, 2007, Title of Invention: Dot sight device for mounting and detaching on a rifle).

[0014] The purpose of the present disclosure is to provide a multi-color dot sight device that is equipped with a plurality of light sources emitting beams of different colors and includes a refractive section having an inclined surface between the plurality of light sources, so that beams emitted from the plurality of light sources can be emitted in the same aiming direction even when passing through or refracting the refractive section, thereby enabling the emission of a beam of color determined by the user's selection in the aiming direction.

[0015] In addition, the present disclosure aims to provide a multi-color dot sight device that prevents the aiming point from being misaligned and thus prevents malfunctions in which the aiming point is inaccurately illuminated due to the refractive part becoming misaligned. This is achieved by further including a support member that ensures the refractive part is seated in an accurate position and prevents the seated refractive part from moving, thereby preventing the refractive part from moving and becoming displaced from an accurate position due to vibrations generated during movement, even when a user carries the dot sight device and moves for a long period of time.

[0016] To solve the problem described above, a multi-color dot sight device according to one embodiment of the present disclosure comprises: a base plate installed on an extension line of the aiming direction; a first light source installed on the base plate to irradiate a beam of a first color in the aiming direction; a second light source installed on the base plate spaced apart from the aiming direction to irradiate a beam of a second color; and a refractive part that passes the beam irradiated from the first light source and refracts the beam irradiated from the second light source to discharge it in the aiming direction.

[0017] A multi-color dot sight device according to another embodiment of the present disclosure may further include a support member that supports a refraction part.

[0018] A first light source according to another embodiment of the present disclosure can irradiate a green-colored beam used in an environment where sunlight is irradiated.

[0019] A second light source according to another embodiment of the present disclosure can irradiate a red-colored beam in an environment where sunlight is not irradiated.

[0020] A refractive member according to another embodiment of the present disclosure may include a filter member that reflects only wavelengths within a set range.

[0021] A multi-color dot sight device according to another embodiment of the present disclosure may further include a first fixing part provided on a base plate to support a filter member.

[0022] A first fixing member according to another embodiment of the present disclosure includes a plurality of fixing protrusions provided on a base plate to support the end of a filter member, and the fixing protrusions may be provided with a stepped surface on which the filter member is seated.

[0023] According to another embodiment of the present disclosure, an adhesive member may be provided on the stepped surface to be fitted and coupled to the filter member and adhere to the stepped surface.

[0024] A multi-color dot sight device according to another embodiment of the present disclosure may further include a gap-filling portion interposed in the gap between a first light source and a fixed projection, and interposed in the gap between a second light source and a fixed projection.

[0025] A gap-filling member according to another embodiment of the present disclosure may include a plurality of filling members interposed between one of a plurality of fixed protrusions and a first light source, and between another of a plurality of fixed protrusions and a second light source.

[0026] A refractive member according to another embodiment of the present disclosure may include a first prism member having an inclined surface that reflects only wavelengths within a set range.

[0027] A support member according to another embodiment of the present disclosure may include a second prism member that is in close contact with an inclined surface to form a cuboid by being combined with a first prism member.

[0028] A multi-color dot sight device according to another embodiment of the present disclosure may have an anti-reflection coating (AR coating) applied to the outer wall of a first prism member on which a first light source is installed, an anti-reflection coating (AR coating) applied to one surface of a second prism member on which a second light source is installed, and a beam splitter coating applied to an inclined surface.

[0029] A multi-color dot sight device according to another embodiment of the present disclosure may further include a second fixing part provided on a base plate to support a prism member.

[0030] A second fixing member according to another embodiment of the present disclosure may include a first fixing member installed on a base plate by supporting one end of a first light source, a second fixing member installed on a base plate by supporting the other end of a first light source, a third fixing member installed on a base plate by supporting one end of a second light source, and a fourth fixing member installed on a base plate by supporting the other end of a second light source.

[0031] A multi-color dot sight device according to another embodiment of the present disclosure may further include a mounting portion that provides a gap for mounting a first light source on one side of a refractive portion and a gap for mounting a second light source on one side of a second prism member.

[0032] A mounting portion according to another embodiment of the present disclosure may include a first mounting projection installed on one side of a refractive portion, a second mounting projection provided on one side of a refractive portion to provide a gap for mounting a first light source while maintaining a gap with the first mounting projection, a third mounting projection installed on one side of a second prism member, and a fourth mounting projection provided on one side of a second prism member to provide a gap for mounting a second light source while maintaining a gap with the third mounting projection.

[0033] According to another embodiment of the present disclosure, a first light source and a second light source are provided with a pattern portion for controlling the shape of the beam being irradiated, and the pattern portion may include a first pattern for indicating a targeting point located at the center of the targeting direction, a second pattern in which a plurality of curves are arranged in a circular shape with a spacing between them to indicate the border of the targeting point, and a third pattern formed in a plurality of straight lines extending in the direction of the targeting point, arranged opposite to the spacing between the second patterns.

[0034] According to another embodiment of the present disclosure, the pattern portion is formed by printing on a first light source and a second light source, and the first light source and the second light source are formed by applying a thermosetting epoxy after performing a wire bonding operation on a semiconductor chip installed on a printed circuit board to connect the polarity to the semiconductor chip, and the cathodes of the first to third patterns are connected to each other to form a common structure, and the anodes of the first to third patterns are separated differently from each other, so the first to third patterns can be selectively illuminated depending on whether power is supplied to each anode.

[0035] According to any one of the means for solving the problem of the present disclosure, the multi-color dot sight device is equipped with a plurality of light sources that provide aiming points of different colors, so that an aiming point of a suitable color can be selected and provided according to the environment in which the aiming point is illuminated, thereby having the advantage of providing an aiming point of a color suitable for the usage environment of the sight.

[0036] In addition, according to any one of the means for solving the problem of the present disclosure, the refractive part of a multi-color dot sight device includes a filter member that passes only a beam of a specific wavelength, and a filter member having an inclined surface is installed between a first light source arranged in a straight line with the aiming direction and a second light source arranged in a direction orthogonal to the aiming direction, so that a beam irradiated from the first light source passes through the filter member and is irradiated in the aiming direction, and a beam irradiated from the second light source is reflected by the filter member and is irradiated in the aiming direction, thereby having the advantage that beams irradiated from a plurality of light sources are all irradiated equally in the aiming direction.

[0037] In addition, according to any one of the means for solving the problem of the present disclosure, a multi-color dot sight device has the advantage of being able to emit both beams irradiated from the first light source and the second light source in the same aiming direction, by forming an inclined surface in which a filter member formed in a panel shape is arranged in a direction that divides the angle formed between the first light source and the second light source so as to allow the beam irradiated from the first light source to pass through and refract the beam irradiated from the second light source, and can simplify the technical configuration constituting the refracting part and reduce the weight of the refracting part, thereby making the dot sight device lighter.

[0038] In addition, according to any one of the means for solving the problem of the present disclosure, the refractive part of the multi-color dot sight device has a prism member having an inclined surface installed between a first light source arranged in a straight line with the aiming direction and a second light source arranged in a direction orthogonal to the aiming direction, so that a beam irradiated from the first light source passes through the prism member and is irradiated in the aiming direction, and a beam irradiated from the second light source is reflected by the prism member and is irradiated in the aiming direction, thereby having the advantage that beams irradiated from a plurality of light sources are all irradiated equally in the aiming direction.

[0039] In addition, according to any one of the means for solving the problem of the present disclosure, the multi-color dot sight device has the advantage that the inclined surface of a prism member formed in the shape of a block of transparent material is arranged in a direction that bisects the angle formed between a first light source and a second light source, thereby allowing the beam irradiated from the first light source to pass through and refracting the beam irradiated from the second light source, so that both beams irradiated from the first light source and the second light source can be emitted in the same aiming direction, and since a support member supporting the prism member is provided, the prism member can be prevented from becoming separated from or detached from the base plate due to vibrations generated during movement.

[0040] FIG. 1 is a perspective view showing a multi-color dot sight device according to one embodiment of the present disclosure.

[0041] FIG. 2 is a plan view showing a multi-color dot sight device according to one embodiment of the present disclosure.

[0042] FIG. 3 is an exploded perspective view showing a multi-color dot sight device according to one embodiment of the present disclosure.

[0043] FIG. 4 is a photograph illustrating the manufacturing process of a light source for a multi-color dot sight device according to one embodiment of the present disclosure.

[0044] FIG. 5 is a photograph showing the pattern portion of a multi-color dot sight device according to one embodiment of the present disclosure.

[0045] FIG. 6 is a perspective view showing a light source of a multi-color dot sight device according to one embodiment of the present disclosure.

[0046] FIG. 7 is a perspective view showing a multi-color dot sight device according to another embodiment of the present disclosure.

[0047] FIG. 8 is an exploded perspective view showing a multi-color dot sight device according to another embodiment of the present disclosure.

[0048] FIG. 9 is an operating state diagram showing the first light source and the second light source of a multi-color dot sight device according to another embodiment of the present disclosure.

[0049] FIG. 10 is a drawing showing the coating layer application position of a multi-color dot sight device according to another embodiment of the present disclosure.

[0050] FIG. 11 is a graph showing the reflectance of an inclined surface according to the wavelength of a beam irradiated from a light source of a multi-color dot sight device according to another embodiment of the present disclosure.

[0051] FIG. 12 is a graph showing the reflectance of a prism member according to the wavelength of a beam irradiated from a light source of a multi-color dot sight device according to another embodiment of the present disclosure.

[0052] Hereinafter, an embodiment of a multi-color dot sight device according to the present invention will be described with reference to the attached drawings.

[0053] In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for the sake of clarity and convenience of explanation.

[0054] In addition, the terms described below are defined considering their functions in the present invention, and these may vary depending on the intention or practice of the user or operator.

[0055] Therefore, the definitions of these terms should be based on the content throughout this specification.

[0056] FIG. 1 is a perspective view showing a multi-color dot sight device according to one embodiment of the present disclosure, FIG. 2 is a plan view showing a multi-color dot sight device according to one embodiment of the present disclosure, and FIG. 3 is an exploded perspective view showing a multi-color dot sight device according to one embodiment of the present disclosure.

[0057] Referring to FIGS. 1 to 3, a multi-color dot sight device according to one embodiment of the present disclosure comprises a base plate (110) installed on an extension line of the aiming direction, a first light source (112) installed on the base plate (110) to irradiate a beam of a first color in the aiming direction, a second light source (114) installed on the base plate (110) spaced apart from the aiming direction to irradiate a beam of a second color, and a refractive part (130) that passes the beam irradiated from the first light source (112) and refracts the beam irradiated from the second light source (114) to discharge it in the aiming direction.

[0058] Accordingly, the dot sight device of the present embodiment can selectively turn on or off the first light source (112) or the second light source (114) according to the operation of the user, and when power is applied to the first light source (112), a first color beam irradiated from the first light source (112) passes through the refractive part (130) and is discharged in the aiming direction, and when power is applied to the second light source (114), a second color beam irradiated from the second light source (114) is reflected by the refractive part (130) and is discharged in the aiming direction.

[0059] As described above, depending on the user's selection, a targeting point of the first color or the second color is projected onto the target object, thereby enabling the user to accurately provide the desired action to the target object.

[0060] The dot sight device of the present embodiment can be applied to a photographing device that photographs an object located at a distance, and can be installed in a firearm that fires a bullet at an object located at a distance.

[0061] Accordingly, the user can identify the target through a sight installed on a shooting device or a firearm, and perform accurate work by irradiating the target with the aiming point provided by the dot sight device of the present embodiment, which is equipped in the sight and irradiates the aiming point.

[0062] The first light source (112) of the present embodiment emits a green-colored beam used in an environment where sunlight is irradiated, so that a green-colored aiming point is provided to the target during the day when sunlight is irradiated, and the user can easily check the green aiming point and proceed with shooting or firing operations on the target.

[0063] Because the green aiming point has better visibility compared to beams of other colors during the day when sunlight is shining, the user can perform accurate work on the target while confirming the green aiming point.

[0064] In addition, the second light source (114) of the present embodiment emits a red beam in an environment where sunlight is not irradiated, thereby providing a red aiming point to the target at night when sunlight is not irradiated, allowing the user to easily check the red aiming point and proceed with shooting or firing operations on the target.

[0065] Because the red aiming point has better visibility compared to beams of other colors at night when sunlight is not present, users can perform accurate work on the target while confirming the red aiming point.

[0066] As mentioned above, the green color offers good visibility during the day and the red color offers good visibility at night, but this can be changed according to the user's preference.

[0067] The refractive part (130) of the present embodiment includes a filter member (132) that reflects only wavelengths within a set range, so a green LED beam with a wavelength of 515nm to 535nm passes through the filter member (132) and is discharged in the aiming direction, and a red LED beam with a wavelength of 635nm to 665nm is reflected by the filter member (132) and is discharged in the aiming direction in the same way as the green color.

[0068] Accordingly, when power is applied to the first light source (112) of the present embodiment, the green LED beam irradiated from the first light source (112) passes through the filter member (132) and is discharged in the aiming direction, and when power is applied to the second light source (114), the red LED beam irradiated from the second light source (114) is reflected from the inclined surface of the filter member (132) and is discharged in the aiming direction.

[0069] As described above, in this embodiment, a green-colored beam passes through the filter member (132) and a red-colored beam is reflected, allowing the green or red-colored beam to be ejected in the aiming direction. In this embodiment, a first fixing part (150) provided on the base plate (110) to support the filter member (132) is further included, so that the filter member (132) can be seated at an accurate position on the base plate (110).

[0070] The first fixing part (150) of the present embodiment includes a plurality of fixing protrusions provided on the base plate (110) to support the end of the filter member (132), and the fixing protrusions are provided with a stepped surface (158) on which the filter member (132) is seated.

[0071] Additionally, the fixing projection of the present embodiment includes a first fixing projection (152) installed at one of the corners of the base plate (110) to support one end of the filter member (132), a second fixing projection (154) installed at another corner of the base plate (110) to be positioned adjacent to the first fixing projection (152), a third fixing projection (156) installed at another corner of the base plate (110) to be positioned diagonally opposite to the first fixing projection (152) and to support the other end of the filter member (132), and a fourth fixing projection (157) installed at another corner of the base plate (110) to be positioned between the first fixing projection (152) and the third fixing projection (156).

[0072] Accordingly, the filter member (132) can be installed on the first fixed projection (152) and the third fixed projection (156) depending on the position of the second light source (114), and can be installed on the second fixed projection (154) and the fourth fixed projection (157).

[0073] In addition, the stepped surface (158) formed on the fixed projection of the present embodiment is provided with an adhesive member (180) that is fitted and coupled to the filter member (132) and adheres to the stepped surface (158). Therefore, when the adhesive member (180), which is formed in a 'U' shape, is fitted and coupled to both ends of the filter member (132), and then the two ends of the filter member (132) are placed on the stepped surface (158) of the first fixed projection (152) and the second fixed projection (154), the adhesive member (180) adheres to the stepped surface (158) and the two ends of the filter member (132) are fixed to the first fixed projection (152) and the third fixed projection (156).

[0074] This embodiment further includes a gap-filling portion (170) interposed in the gap between the first light source (112) and the fixed projection, and interposed in the gap between the second light source (114) and the fixed projection, so that both ends of the filter member (132) attached to the stepped surface (158) are pressed inward toward the stepped surface (158) by the gap-filling portion (170), thereby preventing the filter member (132) from being separated outward toward the stepped surface (158).

[0075] The gap filling portion (170) includes a plurality of filling members interposed between one of the plurality of fixed protrusions and the first light source (112), and between another of the plurality of fixed protrusions and the second light source (114).

[0076] A first filling member (172) is interposed in the gap between the first fixed projection (152) and the first light source (112), a second filling member (174) is interposed between the first light source (112) and the second fixed projection (154), a third filling member (176) is interposed between the first fixed projection (152) and the second light source (114), and a fourth filling member (178) is interposed between the second light source (114) and the fourth fixed projection (157).

[0077] The filling member of the present embodiment is made of an elastic material and has a planar shape formed as an elongated ellipse in the left-right direction, and is interposed in the gap between the light source and the fixing projection, thereby providing a fixing force that presses the light source from both sides toward the center, so that the first light source (112) and the second light source (114) can be prevented from moving to one side or the other after being seated in an accurate position, and the beam irradiated from the first light source (112) and the second light source (114) can be discharged in an accurate aiming direction.

[0078] Additionally, the first light source (112) and the second light source (114) of the present embodiment are provided with a pattern portion (118) for controlling the shape of the beam being irradiated, and the pattern portion (118) includes a first pattern (118a) for indicating a targeting point located at the center of the targeting direction, a second pattern (118b) in which a plurality of curves are arranged in a circular shape with a space between them to indicate the border of the targeting point, and a third pattern (118c) formed in a shape of a plurality of straight lines extending in the direction of the targeting point, arranged opposite to the space between the second pattern (118b).

[0079] Accordingly, depending on the user's operation, one or more of the first pattern (118a) to the third pattern (118c) can be selected to irradiate a beam, and when the beam is irradiated with all of the first pattern (118a) to the third pattern (118c), a pattern of the shape shown in FIG. 1 can be provided.

[0080] The selection of the pattern can be determined according to the user's preference, and this can be input by an operating part provided in the dot sight device.

[0081] FIG. 4 is a photograph showing the manufacturing process of a light source for a multi-color dot sight device according to one embodiment of the present disclosure, FIG. 5 is a photograph showing a pattern portion of a multi-color dot sight device according to one embodiment of the present disclosure, and FIG. 6 is a perspective view showing a light source for a multi-color dot sight device according to one embodiment of the present disclosure.

[0082] Referring to FIGS. 4 to 6, the pattern portion (118) of the present embodiment is formed by printing on the first light source (112) and the second light source (114). The first light source (112) and the second light source (114) are formed by applying a thermosetting epoxy after performing a wire bonding operation on a semiconductor chip installed on a printed circuit board (116) to connect the polarity to the semiconductor chip. The negative electrodes of the first pattern (118a) to the third pattern (118c) are connected to each other and formed jointly, and the positive electrodes of the first pattern (118a) to the third pattern (118c) are separated from each other and individually connected to a power source. Therefore, the first pattern (118a) to the third pattern (118c) can be selectively illuminated depending on whether power is supplied to each positive electrode.

[0083] Additionally, the first light source (112) and the second light source (114) of the present embodiment are provided with a pattern portion (118) for controlling the shape of the beam being irradiated, and the pattern portion (118) includes a first pattern (118a) for indicating a targeting point located at the center of the targeting direction, a second pattern (118b) in which a plurality of curves are arranged in a circular shape with a space between them to indicate the border of the targeting point, and a third pattern (118c) formed in a shape of a plurality of straight lines extending in the direction of the targeting point, arranged opposite to the space between the second pattern (118b).

[0084] Accordingly, depending on the user's operation, one or more of the first pattern (118a) to the third pattern (118c) can be selected to irradiate a beam, and when the beam is irradiated with all of the first pattern (118a) to the third pattern (118c), a pattern of the shape shown in FIG. 1 can be provided.

[0085] The selection of the pattern can be determined according to the user's preference, and this can be input by an operating part provided in the dot sight device.

[0086] As shown in FIG. 5, the positive electrode of the first pattern (118a), the positive electrode of the second pattern (118b), the positive electrode of the third panel, and the negative electrode connected in common to the first pattern (118a) to the third pattern (118c) are each connected to four corners provided on the printed circuit board (116), and the front part of the printed circuit board (116) and the light source are installed to be covered by a protective member (182).

[0087] The protective member (182) of the present embodiment is made of a transparent glass panel or a synthetic resin panel, so that foreign substances may not settle on the light source and the printed circuit board (116), or the light source or the printed circuit board (116) may be damaged by external force.

[0088] Thus, a multi-color dot sight device is provided that can emit a beam of a color determined by the user's selection in the aiming direction, by including a refractive section having an inclined surface between the multiple light sources and a plurality of light sources that emit beams of different colors, so that even if the beams emitted from the multiple light sources pass through or are refracted by the refractive section, they can be emitted in the same aiming direction.

[0089] FIG. 7 is a perspective view showing a multi-color dot sight device according to another embodiment of the present disclosure, FIG. 8 is an exploded perspective view showing a multi-color dot sight device according to another embodiment of the present disclosure, and FIG. 9 is an operating state diagram showing a first light source and a second light source of a multi-color dot sight device according to another embodiment of the present disclosure.

[0090] FIG. 10 is a drawing showing the coating layer application position of a multi-color dot sight device according to another embodiment of the present disclosure, FIG. 11 is a graph showing the reflectance of an inclined surface according to the wavelength of a beam irradiated from a light source of a multi-color dot sight device according to another embodiment of the present disclosure, and FIG. 12 is a graph showing the reflectance of a prism member according to the wavelength of a beam irradiated from a light source of a multi-color dot sight device according to another embodiment of the present disclosure.

[0091] Referring to FIGS. 7 to 12, a multi-color dot sight device according to another embodiment of the present disclosure further comprises a base plate (710) installed on an extension line of the aiming direction, a first light source (712) installed on the base plate (710) to irradiate a beam of a first color in the aiming direction, a second light source (714) installed on the base plate (710) spaced apart from the aiming direction to irradiate a beam of a second color, a refractive part (730) that passes the beam irradiated from the first light source (712) and refracts the beam irradiated from the second light source (714) to discharge it in the aiming direction, and a support part (not shown) that supports the refractive part (730).

[0092] Accordingly, the dot sight device of the present embodiment can selectively turn on or off the first light source (712) or the second light source (714) according to the operation of the user, and when power is applied to the first light source (712), a first color beam irradiated from the first light source (712) passes through the refractive part (730) and is discharged in the aiming direction, and when power is applied to the second light source (714), a second color beam irradiated from the second light source (714) is reflected by the refractive part (730) and is discharged in the aiming direction.

[0093] As described above, depending on the user's selection, a targeting point of the first color or the second color is projected onto the target object, thereby enabling the user to accurately provide the desired action to the target object.

[0094] The dot sight device of the present embodiment can be applied to a photographing device that photographs an object located at a distance, and can be installed in a firearm that fires a bullet at an object located at a distance.

[0095] Accordingly, the user can identify the target through a sight installed on a shooting device or a firearm, and perform accurate work by irradiating the target with the aiming point provided by the dot sight device of the present embodiment, which is equipped in the sight and irradiates the aiming point.

[0096] The first light source (712) of this embodiment emits a green-colored beam used in an environment where sunlight is irradiated, so that a green-colored aiming point is provided to the target during the day when sunlight is irradiated, allowing the user to easily check the green aiming point and proceed with shooting or firing operations on the target.

[0097] Because the green aiming point has better visibility compared to beams of other colors during the day when sunlight is shining, the user can perform accurate work on the target while confirming the green aiming point.

[0098] In addition, the second light source (714) of the present embodiment emits a red beam in an environment where sunlight is not irradiated, thereby providing a red aiming point to the target at night when sunlight is not irradiated, allowing the user to easily check the red aiming point and proceed with shooting or firing operations on the target.

[0099] Because the red aiming point has better visibility compared to beams of other colors at night when sunlight is not present, users can perform accurate work on the target while confirming the red aiming point.

[0100] As mentioned above, the green color offers good visibility during the day and the red color offers good visibility at night, but this can be changed according to the user's preference.

[0101] The refractive part (730) of the present embodiment includes a first prism member (734) having an inclined surface (738) that reflects only wavelengths within a set range, so a green LED beam with a wavelength of 515nm to 535nm passes through the first prism member (734) and is discharged in the aiming direction, and a red LED beam with a wavelength of 635nm to 665nm is reflected by the inclined surface (738) of the prism member (734) and is discharged in the aiming direction in the same way as the green color.

[0102] Accordingly, when power is applied to the first light source (712) of the present embodiment, the green LED beam irradiated from the first light source (712) passes through the first prism member (734) and is discharged in the aiming direction, and when power is applied to the second light source (714), the red LED beam irradiated from the second light source (714) is reflected from the inclined surface (738) of the first prism member (734) and is discharged in the aiming direction.

[0103] As described above, in this embodiment, a green-colored beam passes through the first prism member (734), and as the red-colored beam is reflected, a green-colored or red-colored beam can be ejected in the aiming direction.

[0104] Additionally, the support member (not shown) of the present embodiment includes a second prism member (736) that is in close contact with an inclined surface (738) to form a cuboid by being combined with a first prism member (734). Therefore, when the first prism member (734) and the second prism member (736) are in close contact symmetrically with the inclined surface (738) as a boundary, a cuboid is formed with an inclined surface in a diagonal direction in the central part.

[0105] Anti-reflection coating (AR coating) is applied to two surfaces of the outer wall of the first prism member (734) where the first light source (712) is installed, anti-reflection coating (AR coating) is applied to one surface of the second prism member (736) where the second light source (714) is installed, and beam splitter coating is applied to the inclined surface (738).

[0106] In addition, one side of the second prism member (736) forming the aiming direction is ground to prevent interference that occurs when the beam passes through.

[0107] With the coating as described above, a green color beam with a wavelength of 515 nm to 535 nm passes through the inclined surface as shown in FIG. 11, and a red color beam with a wavelength of 635 nm to 665 nm is reflected and can be ejected in the aiming direction.

[0108] In addition, as shown in FIG. 12, the beam can pass through the outer walls of the first prism member (734) and the second prism member (736) that are coated with an anti-reflective treatment without being reflected.

[0109] In addition, the present embodiment further includes a second fixing part (750) provided on the base plate (710) to support the first prism member (734) and the second prism member (736), so that the first prism member (734) and the second prism member (736) can be seated at an accurate position on the base plate (710).

[0110] The second fixing member (750) includes a first fixing member (752) installed on the base plate (710) by supporting one end of the first light source (712), a second fixing member (754) installed on the base plate (710) by supporting the other end of the first light source (712), a third fixing member (756) installed on the base plate (710) by supporting one end of the second light source (714), and a fourth fixing member (757) installed on the base plate (710) by supporting the other end of the second light source (714).

[0111] Accordingly, the first light source (712) and the second light source (714) are installed at the correct position on the base plate (710) by means of the first fixing member (752), the second fixing member (754), the third fixing member (756), and the fourth fixing member (757), thereby preventing the first light source (712) and the second light source (714) from being separated or detached from the base plate (710) due to vibrations occurring during movement.

[0112] Additionally, the present embodiment further includes a mounting portion (770) that provides a spacing for mounting a first light source (712) on one side of a refractive portion (730) and a spacing for mounting a second light source (714) on one side of a second prism member (736). The mounting portion (770) comprises a first mounting projection (772) installed on one side of a refractive portion (730), a second mounting projection (774) provided on one side of a refractive portion (730) to provide a spacing for mounting the first light source (712) while maintaining a spacing with the first mounting projection (772), a third mounting projection (776) installed on one side of a second prism member (736), and a second mounting projection provided on one side of a second prism member (736) to provide a spacing for mounting the second light source (714) while maintaining a spacing with the third mounting projection (776). It includes a fourth set-up projection (778).

[0113] Accordingly, when installing the first prism member (734) and the second prism member (736) on the base plate (710), the first prism member (734) is installed in an accurate position by being seated on the base plate (710) so that the first light source (712) is positioned in the gap between the first mounting projection (772) and the second mounting projection (774), and the second prism member (736) is installed in an accurate position by being seated on the base plate (710) so that the second light source (714) is positioned in the gap between the third mounting projection (776) and the fourth mounting projection (778).

[0114] Thus, a multi-color dot sight device is provided that includes a plurality of light sources emitting beams of different colors and a refractive section having an inclined surface between the plurality of light sources, so that beams emitted from the plurality of light sources can be emitted in the same aiming direction even when passing through or refracting the refractive section, thereby allowing a beam of color determined by the user's selection to be emitted in the aiming direction. Furthermore, since the refractive section is seated in an accurate position and a support member is further included to prevent the seated refractive section from moving, it is possible to prevent the refractive section from moving and becoming separated from the accurate position due to vibrations generated during movement, even when the user carries the dot sight device and moves for a long period of time, thereby preventing malfunctions in which the aiming point is emitted inaccurately due to the refractive section becoming separated.

[0115] Although the present invention has been described with reference to an embodiment illustrated in the drawings, this is merely illustrative, and those skilled in the art will understand that various modifications and equivalent alternative embodiments are possible therefrom.

[0116] In addition, although a multi-color dot sight device has been described as an example, this is merely illustrative, and the dot sight device of the present invention may be used in products other than multi-color dot sight devices.

[0117] Therefore, the true technical scope of protection of the present invention should be determined by the following patent claims.

[0118] Although embodiments of the present disclosure have been described in more detail with reference to the attached drawings, the present disclosure is not necessarily limited to these embodiments and may be modified in various ways within the scope of the technical spirit of the present disclosure. Accordingly, the embodiments of the present disclosure are intended to explain, not limit, the technical spirit of the present disclosure, and the scope of the technical spirit of the present disclosure is not limited by these embodiments. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive. The scope of protection of the present disclosure shall be interpreted by the claims below, and all technical spirits within an equivalent scope shall be interpreted as being included within the scope of rights of the present disclosure.

Claims

1. A base plate installed on the extension line of the aiming direction; A first light source installed on the base plate to irradiate a beam of a first color in the above aiming direction; A second light source installed on the base plate spaced apart from the above aiming direction and irradiating a second color beam; and A multi-color dot sight device comprising a refractive section that allows a beam irradiated from the first light source to pass through and refracts a beam irradiated from the second light source to be emitted in the aiming direction.

2. In Paragraph 1, A multi-color dot sight device further comprising a support member that supports the above-mentioned refraction part.

3. In Paragraph 1 or 2, The above-mentioned first light source is a multi-color dot sight device that emits a green color beam used in an environment where sunlight is irradiated.

4. In Paragraph 1 or 2, The above-mentioned second light source is a multi-color dot sight device that emits a red color beam in an environment where sunlight is not irradiated.

5. In Paragraph 1, A multi-color dot sight device comprising a filter member that reflects only wavelengths within a set range, wherein the above-mentioned refractive part.

6. In Paragraph 5, A multi-color dot sight device further comprising a first fixing part provided on the base plate to support the filter member.

7. In Paragraph 6, A multi-color dot sight device, wherein the first fixing part comprises a plurality of fixing protrusions provided on the base plate to support the end of the filter member, and the fixing protrusions are provided with a stepped surface on which the filter member is seated.

8. In Paragraph 7, A multi-color dot sight device having an adhesive member fitted and coupled to the filter member and adhering to the stepped surface on the stepped surface.

9. In Paragraph 7, A multi-color dot sight device further comprising a gap-filling portion interposed in the gap between the first light source and the fixed projection, and interposed in the gap between the second light source and the fixed projection.

10. In Paragraph 8, The above gap-filling part is, Interposed between one of the plurality of fixed protrusions and the first light source, A multi-color dot sight device comprising a plurality of filling members interposed between another fixed projection among a plurality of fixed projections and a second light source.

11. In Paragraph 2, A multi-color dot sight device comprising a first prism member having an inclined surface that reflects only wavelengths within a set range, wherein the above-mentioned refractive part is a refractive part.

12. In Paragraph 11, A multi-color dot sight device comprising a second prism member that is in close contact with the inclined surface to form a cuboid by being combined with the first prism member.

13. In Paragraph 12, A multi-color dot sight device in which an anti-reflection coating (AR coating) is applied to the outer wall of the first prism member on which the first light source is installed, an anti-reflection coating (AR coating) is applied to one surface of the second prism member on which the second light source is installed, and a beam splitter coating is applied to the inclined surface.

14. In Paragraph 11, A multi-color dot sight device further comprising a second fixing part provided on the base plate to support the prism member.

15. In Paragraph 14, The above-mentioned second fixing part is, A first fixing member installed on the base plate by supporting one end of the first light source; A second fixing member installed on the base plate to support the other end of the first light source; A third fixing member installed on the base plate by supporting one end of the second light source; and A multi-color dot sight device comprising a fourth fixing member installed on the base plate to support the other end of the second light source.

16. In Paragraph 2, A multi-color dot sight device further comprising a mounting portion that provides a gap for mounting the first light source on one side of the refractive portion and a gap for mounting the second light source on one side of the second prism member.

17. In Paragraph 16, The above-mentioned seating portion is, A first mounting projection installed on one side of the above-mentioned bending part; A second mounting projection provided on one side of the refractive part to maintain a gap with the first mounting projection and provide a gap for mounting the first light source; A third mounting projection installed on one side of the second prism member; and A multi-color dot sight device comprising a fourth mounting projection provided on one side of the second prism member to maintain a gap with the third mounting projection and provide a gap for mounting the second light source.

18. In Paragraph 1 or 2, The first light source and the second light source are provided with a pattern portion for controlling the shape of the beam being irradiated, and The above pattern part is, A first pattern indicating a aiming point located at the center of the above aiming direction; A second pattern in which a plurality of curves are arranged in a circular shape with spaced intervals, maintaining a distance from the aiming point to indicate the border of the aiming point; and A multi-color dot sight device comprising a third pattern formed in a plurality of straight lines extending in the direction of the aiming point, positioned opposite to the gap between the second patterns.

19. In Paragraph 18, The above pattern portion is formed by printing on the first light source and the second light source, and The first light source and the second light source are formed by performing a wire bonding operation on a semiconductor chip installed on a printed circuit board to connect the polarity to the semiconductor chip, and then applying a thermosetting epoxy. A multi-color dot sight device in which the cathodes of the first to third patterns are connected to each other and formed jointly, and the anodes of the first to third patterns are separated differently from each other, so that the first to third patterns can be selectively illuminated depending on whether power is supplied to each anode.