Beacon for aid to navigation

Abstract

The present invention relates to a beacon for an aid to navigation, the beacon being capable of providing beacon light having a vertically extended light distribution by enabling light dispersed upwardly or downwardly among light irradiated in the lateral direction from light sources to be refracted in the lateral direction with a low slope by means of an upper reflective member and a lower reflective member, thereby being easily identified from a long distance, considering the number or size of the light sources.

Description

Lighthouse for navigational aids

[0001] The present invention relates to a beacon for navigational marking, and more particularly, to a beacon capable of providing light radiated laterally from a light source with a light distribution expanded in the vertical direction.

[0002] Generally, navigational aids are installed and used at sea to provide navigational information about the route to navigators operating ships at night.

[0003] The above navigational aids are artificial landmarks used as navigational aids to provide accurate location information to ships for safe navigation. Devices such as beacons installed on lighthouses or light buoys are used, and they emit light that can guide the navigational route, allowing navigators to recognize them and obtain information about the navigational route.

[0004] The lighthouse installed on the light buoy is a facility that provides location information by emitting light using an LED lamp and identifies the location of the signal station (lighthouse, light buoy, etc.) by flashing (light), flashing period (light quality), and measuring the position of the vessel, maintaining the route, and safely navigating to the destination.

[0005] Lights for navigational markings are manufactured according to their light range, for example, 3 nautical miles (NM), 5 nautical miles (NM), 7 nautical miles (NM), 9 nautical miles (NM), 11 nautical miles (NM), and 15 nautical miles (NM). The number of LED modules is adjusted to produce the appropriate optical performance.

[0006] Accordingly, the number of LED modules varies depending on the brightness, and the LED driver is also different for each, so the main board on which the LED driver is installed is also manufactured differently for each.

[0007] Therefore, in general, the longer the light range, the more LED modules are required for navigational beacons, which increases the volume and makes the structure more complex.

[0008] The present invention is intended to solve the above-mentioned problems, and to provide a light beacon for navigational markings that can form a light that is easy to see from a distance by providing a light distribution that is expanded in the vertical direction compared to the number or size of light sources.

[0009] In order to achieve the above object, the lighthouse for navigational marking of the present invention is characterized by comprising: a light irradiation unit that irradiates light laterally; an upper support body and a lower support body that are connected to the upper and lower portions of the light irradiation unit and are arranged vertically with the light irradiation unit in between, and each having a heat dissipation unit; a first inclined reflection unit formed in a ring shape on the upper circumference of the light irradiation unit, the first inclined reflection unit being formed so that the outer diameter becomes narrower as it goes downward from the lower portion of the upper support body, and reflecting light irradiated upward from the light irradiation unit laterally; and a second inclined reflection unit formed in a ring shape on the lower circumference of the light irradiation unit, the second inclined reflection unit being formed so that the outer diameter becomes narrower as it goes upward from the upper portion of the lower support body, and reflecting light irradiated downward from the light irradiation unit laterally.

[0010] It is preferable that the upper reflective member further includes a first horizontal reflective member that protrudes horizontally by a certain length along the upper circumference of the first inclined reflective member to reflect light irradiated upward from the light irradiation member laterally downward, and that the lower reflective member further includes a second horizontal reflective member that protrudes horizontally by a certain length along the lower circumference of the second inclined reflective member to reflect light irradiated downward from the light irradiation member laterally upward.

[0011] The upper support body has a plurality of ring-shaped upper heat dissipation ribs that have different diameters and are continuously spaced apart from each other radially from the center and are arranged in a continuous manner, an upper support plate that connects the lower ends of the plurality of upper heat dissipation ribs, but has a centrally penetrating portion and a lower surface that contacts the first horizontal reflector, and an upper support plate that protrudes downward in a ring shape at a position spaced apart from the edge of the upper support plate toward the center by a predetermined distance and forms an upper receiving groove that is opened downwardly and is formed so that the outer diameter decreases as it goes downward and is arranged in contact with the first inclined reflector, and the lower support body has a plurality of ring-shaped lower heat dissipation ribs that have different diameters and are continuously spaced apart from each other radially from the center by a predetermined distance, and a lower support plate that connects the upper ends of the plurality of lower heat dissipation ribs, but has a centrally penetrating portion and a upper surface that contacts the second horizontal reflector, and a lower support plate that protrudes upward in a ring shape at a position spaced apart from the edge of the lower support plate toward the center by a predetermined distance and is opened upwardly and is arranged in a ring shape and is opened upwardly and is arranged inward. It is preferable to form a lower receiving groove, with the outer diameter decreasing as it goes upward, and to have a lower support portion that comes into contact with the second inclined reflector.

[0012] The upper support plate has an upper through hole formed at the center with an inner diameter smaller than the upper receiving groove, and the plurality of upper heat dissipation ribs include a first group including the innermost upper heat dissipation rib having an inner diameter corresponding to or larger than the upper through hole, a plurality of other upper heat dissipation ribs arranged continuously from the innermost upper heat dissipation rib in a circumferential direction, and a second group including another upper heat dissipation rib arranged continuously from the first group in a circumferential direction.

[0013] It is preferable that the upper heat dissipation ribs of the first group protrude from the upper support plate with a length shorter than the other side in the circumferential direction by a first length, thereby forming a single cable passage groove, and that the upper heat dissipation ribs of the second group protrude from the upper support plate with a length shorter than the other side by a second length longer than the first length in the circumferential direction, with the cable passage groove at the center, thereby forming a single GPS mounting groove.

[0014] The upper receiving groove has an inner diameter smaller than the inner surface of the lower end of the first inclined reflector, and the upper support portion is formed so that the lower edge of the side protruding inwardly from the first inclined reflector is recessed inwardly by a predetermined length in the circumferential direction so that the upper restraint groove into which the lens or the upper end of the cover of the light irradiation portion is inserted together with the lower inner surface of the first inclined reflector can be formed, and the lower receiving groove has an inner diameter smaller than the inner surface of the upper end of the second inclined reflector, and the lower support portion is formed so that the upper edge of the side protruding inwardly from the second inclined reflector is recessed inwardly by a predetermined length in the circumferential direction so that the lower restraint groove into which the lens or the lower end of the cover of the light irradiation portion is inserted together with the upper inner surface of the upper end of the second inclined reflector can be formed.

[0015] The lighthouse for navigational marking of the present invention can provide a lighthouse with a light distribution expanded in the vertical direction by refracting light scattered upward or downward from the light radiated laterally from a light source laterally at a low incline through an upper reflector and a lower reflector, thereby having the advantage of being easy to identify from a distance compared to the number or size of light sources.

[0016] Figure 1 is a perspective view of a light for navigational marking according to the first embodiment of the present invention.

[0017] Figure 2 is an exploded perspective view of the navigational beacon of Figure 1.

[0018] Figure 3 is a cross-sectional view of the lighthouse for navigational marking of Figure 1.

[0019] Figure 4 is a cross-sectional view of a light for navigational marking according to the second embodiment of the present invention.

[0020] Figure 5 is a cross-sectional view of a light for navigational marking according to a third embodiment of the present invention.

[0021] Figure 6 is a cross-sectional view of a light for navigational marking according to the fourth embodiment of the present invention.

[0022] Hereinafter, a beacon for navigational marking according to a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

[0023] Figures 1 and 3 illustrate a lighthouse (10) for navigational marking according to a first embodiment of the present invention.

[0024] A navigational beacon (10) according to a first embodiment of the present invention comprises: a light irradiation unit (11) that irradiates light laterally; an upper support body (32) and a lower support body (52) that are connected to the upper and lower portions of the light irradiation unit (11) and arranged vertically with the light irradiation unit (11) interposed therebetween; a ring-shaped upper reflector (71) formed on the upper circumference of the light irradiation unit (11) such that the outer diameter becomes narrower as it goes downward from the lower portion of the upper support body (32) and a first inclined reflector (72) that reflects light irradiated upward from the light irradiation unit (11) laterally; The lower support body (52) is formed with an outer diameter that becomes narrower as it goes upward, and a second inclined reflection member (92) that reflects light irradiated downward from the light irradiation member (11) laterally is formed on the lower circumference of the light irradiation member (11).

[0025] The light irradiation unit (11) has a light module (12) that irradiates light laterally at regular intervals in the circumferential direction, and a cylindrical lens (21) positioned around the periphery of the light module (12).

[0026] The light module (12) comprises a hollow, polygonal column-shaped bobbin (13) that extends vertically, a light emitting unit (15) including a plurality of light sources (16) mounted on each side of the bobbin (12), an upper flange (19) that is connected to the bobbin (12) so that its center is supported on the top of the bobbin (12) and its center is formed through the hollow portion so as to be in communication with the hollow portion, and a lower flange (20) that is connected to the bobbin (12) so that the lower end of the bobbin (12) is positioned at the center and its center is formed through the hollow portion so as to be in communication with the hollow portion.

[0027] The light emitting unit (15) is divided into a first light emitting unit (17) including a plurality of light sources (16) mounted at the same height on the upper side of each side of the bobbin (12), and a second light emitting unit (18) including a plurality of light sources (16) mounted at the same height on the lower side of each side of the bobbin (12).

[0028] The light source (16) is an LED lamp (light emitting diode lamp) and may include R, G, and B LED elements for emitting single-color or multi-color light.

[0029] The lens (21) includes a lens body (22) including a first ring-shaped lens part (23) arranged around the first light-emitting part (17) to laterally focus light irradiated from the first light-emitting part (17), and a second ring-shaped lens part (26) arranged around the second light-emitting part (18) to laterally focus light irradiated from the second light-emitting part (18) and disposed below the first lens part (23); an upper coupling ring part (30) that protrudes upward along the upper end of the first lens part (23) with a constant thickness and is inserted into a ring-shaped upper restraining groove (46) formed between the lower end of the upper support body (32) and the lower end of the upper reflector (71), which will be described later; It has a lower coupling ring portion (31) that protrudes downward with a constant thickness along the lower end of the second lens portion (26) and is inserted into a ring-shaped lower restraint groove (66) formed between the upper end of the lower support body (52) described later and the lower end of the lower reflector (91).

[0030] One side (24) of the first lens unit (23) facing the light source (16) of the first light-emitting unit (17) and one side (27) of the second lens unit (26) facing the light source (16) of the second light-emitting unit (18) are formed to have a curvature extending in a ring shape in the horizontal direction, but are formed in a smooth surface shape in the vertical direction.

[0031] In addition, the outer surface (25) of the first lens unit (23) and the outer surface (28) of the second lens unit (26) are each formed as an aspherical surface that is convex toward the outside as it goes from the top and bottom toward the center.

[0032] The other surface (25) of the first lens unit (23) and the other surface (28) of the second lens unit (26) are formed so that the curvature becomes smaller from the center in the vertical direction toward the upper or lower edge, and are provided with a plurality of unit diffusion parts (29) that have a constant width in the vertical direction, extend in the circumferential direction, and are continuously arranged in the vertical direction.

[0033] Each unit diffusion section (29) is formed by a number of unit diffusion surfaces (29a) continuously arranged in an arc-shaped curvature in the circumferential direction.

[0034] The unit diffusion surfaces (29a) of different unit diffusion sections (29) have different slopes so that the curvature of the other surface (25) of the first lens section (23) and the other surface (28) of the second lens section (26) becomes smaller as they are positioned closer to the edge from the vertical center of the first lens section (23) or the second lens section (26).

[0035] The upper support body (32) includes a plurality of ring-shaped upper heat dissipation ribs (34) having different diameters and spaced apart from each other radially from the center at regular intervals, and an upper support plate (35) connecting the lower ends of the plurality of upper heat dissipation ribs (33) but having a centrally penetrating portion, and the upper heat dissipation portion (33) having a diameter larger than the light irradiation portion (11); an upper support portion (40) that protrudes downward in a ring shape at a position spaced apart from the edge of the upper support plate (35) toward the center by a predetermined distance and forms an upper receiving groove (41) that is opened downwardly and inwardly, and whose outer diameter decreases as it goes downward; and a first mounting guide portion (39) including an upper restraining protrusion (42) that protrudes downward along the lower edge of the upper support plate (35).

[0036] The upper support plate (35) has an upper through hole (35a) formed at the center with an inner diameter smaller than that of the upper receiving groove (41).

[0037] A plurality of upper heat dissipation ribs (34) are divided into a first group (A) including an innermost upper heat dissipation rib (34a) having an inner diameter corresponding to or larger than an upper through hole (35a) formed through the center of the upper support plate (35), and a plurality of other upper heat dissipation ribs (34b, 34c) arranged continuously around the innermost upper heat dissipation rib (34a); a second group (B) including other upper heat dissipation ribs (34d, 34e, 34f, 34g, 34h, 34i, 34j) arranged continuously around the first group (A); and a third group (C) including other upper heat dissipation ribs (34k, 34l) arranged continuously around the second group (B).

[0038] Referring to FIG. 2, the upper heat dissipation ribs of the first group (A) are formed so that one side of the corresponding position is formed so that the first length (L1) is shorter than the other side in the circumferential direction, and protrudes from the upper support plate (35) to form one first cable passage groove (37), and the upper heat dissipation ribs of the second group (B) are formed so that one side of the corresponding position is formed so that the second length (L2), which is longer than the first length (L1) in the circumferential direction, protrudes from the upper support plate (35) to form one GPS mounting groove (38).

[0039] The lower support body (52) includes a plurality of ring-shaped lower heat dissipation ribs (54) having different diameters and spaced apart from each other radially from the center at regular intervals, and a lower support plate (55) connecting the upper ends of the plurality of lower heat dissipation ribs (54) but having a centrally penetrating portion, and includes a lower heat dissipation portion (53) having the same diameter as the upper heat dissipation portion (33); a lower support portion (60) protruding upward in a ring shape at a position spaced apart from the edge of the lower support plate (55) toward the center by a predetermined distance and forming a lower receiving groove (61) that is opened downwardly and inwardly, and whose outer diameter decreases as it goes downward; and a second mounting guide portion (59) including a lower restraining protrusion (62) protruding upward along the lower edge of the lower surface of the lower support plate (54).

[0040] A plurality of lower heat dissipation ribs (54) include a fourth group (D) including a lower heat dissipation rib (54a) located at the innermost side corresponding to or having a large inner diameter in a lower through hole (55a) formed through the center of a lower support plate (55), and a plurality of other lower heat dissipation ribs (54b, 54c) arranged continuously around the circumference from the innermost lower heat dissipation rib; a fifth group (E) including other lower heat dissipation ribs (54d, 54e, 54f, 54g, 54h, 54i, 54j) arranged continuously around the circumference from the fourth group (D); and a sixth group (F) including other lower heat dissipation ribs (54k, 54l) arranged continuously around the circumference from the fifth group (E).

[0041] Although not specifically shown, the lower heat dissipation ribs of the fourth group (D) may be formed so that one side of the corresponding position protrudes downward from the lower support plate (55) with a length lower than the other side by a first length (L1) in the circumferential direction, thereby forming a second cable passage groove (not shown), and the lower heat dissipation ribs of the fifth group (E) may be formed so that one side of the corresponding position protrudes downward from the lower support plate (55) with a length lower than the other side by a length corresponding to or greater than the second length (L2) in the circumferential direction, with the second cable passage groove at the center, thereby forming a single battery mounting groove (not shown).

[0042] Meanwhile, the upper flange (19) of the optical module (12) is received in the upper receiving groove (41) and bolted to the upper support body (32).

[0043] Specifically, the upper support plate (35) has first connecting holes (35b) formed at regular intervals along the circumference around the upper through hole (35a) through which bolts (b) pass, and the upper heat dissipation rib portion (34c) formed at a position corresponding to the upper side on the circumference formed by the plurality of first connecting holes (35b) has a structure divided into a plurality of pieces spaced apart from each other at the position where the first connecting holes (35b) are formed. The bolts (b) passing through the upper support plate (35) are screw-connected to the upper flange (19).

[0044] The lower flange (20) of the optical module (12) is received in the lower receiving groove (61) and bolted to the lower support body (52).

[0045] Specifically, the lower support plate (55) has second connecting holes (55b) formed at regular intervals along the circumference, through which bolts (b') pass, around the lower through hole (55a), and the lower heat dissipation rib portion (54c) formed at a position corresponding to the lower side on the circumference formed by the plurality of second connecting holes (55b) has a structure divided into a plurality of pieces spaced apart from each other at the position where the second connecting holes (55b) are formed. The bolts (b') passing through the lower support plate (55) are screw-connected to the lower flange (20).

[0046] That is, a bolt (b) penetrates the upper support body (32) and is coupled to the upper flange (19), and another bolt (b') penetrates the lower support body (52) and is coupled to the lower flange (20), so that the gap between the upper support body (32) and the lower support body (52) is fixed, and the upper coupling ring (30) and the lower coupling ring (31) of the lens (21) are maintained in a state of being inserted and fixed in the upper restraint groove (46) and the lower restraint groove (66), respectively.

[0047] The upper reflective member (71) has a first inclined reflective member (72) and a first horizontal reflective member (74).

[0048] The first slope reflector (72) is formed in a ring shape to be arranged around the upper support (39), and is formed so that the inner and outer diameters become narrower as it goes downwards, so that the inner surface is in contact with the upper support (39).

[0049] The first horizontal reflector (74) is formed to protrude horizontally along the upper circumference of the first inclined reflector (72) by a certain length, and its outer surface is in contact with the inner surface of the upper restraining jaw (41).

[0050] A first reflective layer (73) is formed on the outer surface of the first inclined reflector (72) and the lower surface of the first horizontal reflector (74) to reflect the light irradiated from the light irradiator (11) downwardly.

[0051] One side of the first reflective layer (73) covering the outer surface of the first inclined reflector (72) reflects light irradiated upward from the light irradiator (11) laterally or downwardly. In addition, the other side of the first reflective layer (73) covering the lower surface of the first horizontal reflector (74) reflects light irradiated upward from the light irradiator (11) laterally or downwardly.

[0052] In addition, the outer surface of the first inclined reflector (72) may be formed to have a curvature that increases from the bottom to the top, and may be provided with a plurality of first unit lateral refracting parts (not shown) that are formed in an annular shape with a constant width in the vertical direction and are continuously arranged in the vertical direction. The plurality of first unit lateral refracting parts have different inclinations so that the outer surface of the first inclined reflector (72) has a curvature that increases from the bottom to the top.

[0053] The lower reflective member (91) has a second inclined reflective member (92) and a second horizontal reflective member (94).

[0054] The second slope reflection member (92) is formed in a ring shape to be arranged around the lower support member (59), and is formed so that the inner and outer diameters become narrower as it goes upwards, so that the inner circumference is in contact with the lower support member (59).

[0055] The second horizontal reflector (94) is formed to protrude horizontally along the lower circumference of the second inclined reflector (92) by a certain length, and its outer surface is in contact with the inner surface of the lower restraining jaw (62).

[0056] A second reflective layer (93) is formed on the outer surface of the second inclined reflector (92) and the upper surface of the second horizontal reflector (94) to reflect the light irradiated from the light irradiator (11) laterally or upwardly.

[0057] One side of the second reflective layer (93) covering the outer surface of the second inclined reflector (92) reflects the light irradiated downward from the light irradiator (11) laterally. And, the other side of the second reflective layer (93) covering the lower surface of the second horizontal reflector (94) reflects the light irradiated downward from the light irradiator (11) laterally upward.

[0058] In addition, the outer surface of the second inclined reflector (92) may be formed to have a curvature that increases as it goes downward, and may be provided with a plurality of second unit lateral refracting parts (not shown) that are formed in a ring shape with a constant width in the vertical direction and are continuously arranged in the vertical direction. The plurality of second unit lateral refracting parts have different inclinations so that the curvature of the outer surface of the second inclined reflector (92) increases as it goes downward from the top.

[0059] Meanwhile, the upper receiving groove (41) has an inner diameter smaller than the inner surface of the lower end of the first inclined reflector (72). In addition, the upper support portion (40) is formed so that the lower edge of the side protruding inward from the first inclined reflector (72) is stepped upward by a certain length in the circumferential direction so as to form an upper restraining groove (46) into which the upper end of the lens (21) of the light irradiation portion (11) is inserted together with the lower inner surface of the first inclined reflector (72).

[0060] And, the lower receiving groove (61) has an inner diameter smaller than the inner surface of the upper end of the second inclined reflector (92), and the lower support portion (60) is formed so that the upper edge of the side protruding inward from the second inclined reflector (92) is stepped downward by a certain length in the circumferential direction so as to form a lower restraining groove (56) into which the lower end of the lens (21) of the light irradiation portion (11) is inserted together with the upper inner surface of the second inclined reflector (92).

[0061] The navigational beacon (10) according to the first embodiment of the present invention is equipped with a power supply unit that supplies power necessary for driving a GPS receiver accommodated in a GPS mounting home and for driving the light source (16) to emit light, although not shown.

[0062] The above power supply unit may be equipped with a rechargeable battery that is charged with electric energy generated by solar power generation modules installed in the vicinity.

[0063] The light beacon (10) for navigational marking according to the first embodiment of the present invention can provide a light having a light distribution expanded in the vertical direction by refracting light that is radiated laterally from a light source (16) and is dispersed upward or downward laterally at a low incline through an upper reflector (71) and a lower reflector (91), thereby having the advantage of being easy to identify from a distance compared to the number or size of light sources.

[0064] Meanwhile, FIG. 4 illustrates a navigational beacon (110) according to a second embodiment of the present invention. Components having the same function as those in the previously illustrated drawing are indicated with the same reference numerals.

[0065] The lighthouse (110) for navigational marking according to the second embodiment of the present invention has the same structure as the first embodiment of the present invention, except for the connecting rod (180) and the light irradiation unit (111).

[0066] And, although the lower support body (52) is shown as having the same structure on the central side as the upper support body (32), the central side of the upper support body (32) may have the same structure as the lower support body (52) of the first embodiment of the present invention.

[0067] The light irradiation unit (111) comprises an upper light emitting unit (117) accommodated in an upper receiving groove (41) so that the light source (16) irradiates light downward; a lower light emitting unit (118) accommodated in a lower receiving groove (61) so that the light source (16) irradiates light upward; an upper light path conversion unit (122) arranged below the upper light emitting unit (117) to convert the light path of light irradiated from the upper light emitting unit (117) laterally; and a lower light path conversion unit (127) arranged above the lower light emitting unit (118) and vertically symmetrical with the upper light path conversion unit (122) to convert the light path of light irradiated from the lower light emitting unit (118) laterally.

[0068] The upper light-emitting portion (117) and the lower light-emitting portion (118) can be applied with various known light sources such as light-emitting diodes.

[0069] The upper light path conversion unit (122) is connected to the upper support body (32) surrounding the upper light emitting unit (117) so as to convert the light path of the light emitted downward from the upper light emitting unit (117) in a direction intersecting the extension direction of the coupling rod (180) described later.

[0070] The upper optical path conversion part (122) is formed with an upper coupling ring part (123) formed in a ring shape, an upper dome part (124) formed in a hemispherical shape with an outer diameter that gradually decreases as it extends downward from the upper coupling ring part (123), and an upper cylindrical part (125) that extends in a cylindrical shape from the lower portion of the upper dome part (124) and has an upper concave groove (125a) that is drawn downward from the lower portion toward the center.

[0071] The inner circumferential surface (126) forming the upper concave groove (125a) of the upper cylindrical portion (125) is formed as an aspherical surface.

[0072] Referring to FIGS. 4 and 6, the inner surface (126) forming the concave groove (125a) of the upper cylindrical portion (125) is preferably formed as an aspherical surface having multiple layers along the extension direction, taking into consideration the optical axis and light diffusion angle of the upper light emitting portion (117), so that the light emitted downward from the upper light emitting portion (117) and traveling through the upper dome portion (124) can be totally reflected internally and the light path can be converted to traveling parallel to the horizontal direction.

[0073] The lower optical path conversion unit (127) is formed with the same structure as the upper optical path conversion unit (122) and is arranged vertically symmetrically.

[0074] The lower optical path conversion part (127) is formed with a lower coupling ring part (128) formed in a ring shape, a lower dome part (129) formed in a hemispherical shape with an outer diameter that gradually decreases as it extends upward from the lower coupling ring part (128), and a lower cylindrical part (130) that extends in a cylindrical shape from the upper portion of the lower dome part (129) and has a lower concave groove (130a) that is drawn downward from the lower portion toward the center.

[0075] The inner circumferential surface (131) forming the lower concave groove (130a) of the lower cylindrical portion (130) is also formed in a non-spherical shape with multiple layers along the extension direction in consideration of the optical axis and light diffusion angle of the lower light-emitting portion (118), so that the light emitted upward from the lower light-emitting portion (118) and traveling through the lower dome portion (129) can be totally reflected internally and the optical path can be changed to travel parallel to the horizontal direction.

[0076] The connecting rod (180) is extended vertically with the upper part connected to the upper heat dissipation part (33) and the lower part connected to the lower support body (52).

[0077] Four connecting rods (180) are applied, and the upper part penetrates the first horizontal reflector (74) of the upper reflector (71) and the first connecting hole (not shown) formed through the upper support plate (35) between the upper restraint jaw (42) and the upper support member (40) and can be fixedly connected through a nut (not shown).

[0078] The upper heat dissipation rib (34) formed above corresponding to the first joint hole has a divided structure spaced apart in the circumferential direction.

[0079] In addition, the connecting rod (180) can be fixedly connected by penetrating the second horizontal reflector (94) of the lower reflector (91) and penetrating the second connecting hole formed in the lower support plate (55) between the lower restraint jaw (62) and the lower support member (60) through a nut (not shown).

[0080] The lower heat dissipation rib (54) formed at the bottom corresponding to the second connecting hole has a divided structure spaced apart in the circumferential direction.

[0081] The bonding rod (180) may be formed of a transparent material with high light transmittance in part or all of the area where light is irradiated.

[0082] The upper reflective member (71) reflects light irradiated upward from the lower light-emitting member (118) to the side or downward, and the lower reflective member (91) reflects light irradiated downward from the upper light-emitting member (117) to the side or upward.

[0083] Meanwhile, FIG. 5 illustrates a navigational beacon (210) according to a third embodiment of the present invention. Components having the same function as those in the previously illustrated drawing are indicated with the same reference numerals.

[0084] The lighthouse (210) for navigational marking according to the third embodiment of the present invention has the same structure as the second embodiment of the present invention, except for the light irradiation unit (211).

[0085] The light irradiation unit (211) comprises an upper light emitting unit (117); a lower light emitting unit (118); an upper light path conversion unit (222) positioned below the upper light emitting unit (117) to convert the light path irradiated from the upper light emitting unit (117) laterally, and a lower light path conversion unit (227) positioned above the lower light emitting unit (118) and symmetrically vertically with the upper light path conversion unit (222) to convert the light path irradiated from the lower light emitting unit (118) laterally.

[0086] The optical path conversion unit (221) is formed in a transparent cylindrical shape with an internal space, and further comprises a cover part (231) in which the upper part is inserted into the upper restraint groove (46) and the lower part is inserted into the lower restraint groove (66), and a partition plate (233) that divides the internal space of the cover part (231) in the vertical center and on which the upper optical path conversion part (222) is mounted on the upper side and the lower optical path conversion part (227) is mounted on the lower side.

[0087] The upper optical path conversion part (222) is formed so that the outer diameter decreases upward from the upper surface of the partition plate (233), and an upper reflection layer (222a) is formed on the outer surface.

[0088] It is preferable that the outer surface of the upper optical path conversion unit (222) be formed as an aspherical surface having multiple layers along the extension direction, taking into consideration the optical axis and light diffusion angle of the upper light emitting unit (117), so that the light emitted downward from the upper light emitting unit (117) can be totally reflected and the optical path can be converted to proceed in parallel in the horizontal direction.

[0089] The lower optical path conversion part (227) is formed so that the outer diameter decreases downward from the lower surface of the partition plate (233), and a lower reflection layer (227a) is formed on the outer surface.

[0090] It is preferable that the outer surface of the lower optical path conversion unit (227) be formed as an aspherical surface having multiple layers along the extension direction, taking into consideration the optical axis and light diffusion angle of the upper light emitting unit (118), so that the light emitted downward from the lower light emitting unit (118) can be totally reflected and the optical path can be converted to proceed in parallel in the horizontal direction.

[0091] Meanwhile, Fig. 6 illustrates a navigational beacon according to a fourth embodiment of the present invention. Components having the same function as those in the previously illustrated drawings are indicated with the same reference numerals.

[0092] A navigational beacon (310) according to a fourth embodiment of the present invention further comprises, in the structure of a navigational beacon (110) according to a second embodiment of the present invention, a first collimating lens (365) mounted between a light source (16) of an upper light emitting unit (117) and an upper optical path conversion unit (122) to focus light emitted from an upper light emitting unit (117) and radiate it downward, and a second collimating lens (367) mounted between a light source (16) of a lower light emitting unit (118) and a lower optical path conversion unit (127) to focus light emitted from a lower light emitting unit (118) and radiate it upward.

[0093] The upper support body (32) is provided with a first protrusion (44) that protrudes downward from the lower surface of the upper support plate (35) around the upper through hole (36) and on which the upper light-emitting part (117) is installed.

[0094] The first protrusion (44) protrudes downward from the upper light-emitting portion (117) around the upper light-emitting portion (117) and forms a first chin (45) that supports the first transparent plate (366) equipped with the first collimating lens.

[0095] The lower support body (52) is provided with a second protrusion (64) that protrudes upward from the upper surface of the lower support plate (55) around the lower through hole (56) and on which the lower light-emitting part (118) is mounted.

[0096] The second protrusion (64) protrudes upwardly from the lower light-emitting portion (118) around the lower light-emitting portion (118) and forms a second chin (65) that supports the second transparent plate (368) equipped with the second collimating lens.

[0097] The first transparent plate (366) and the second transparent plate (368) are not limited to the structure shown as long as they can support the first collimating lens (365) or the second collimating lens (367).

[0098] The above-described navigational beacon according to the present invention has been described with reference to the attached drawings, but these are merely exemplary. Those skilled in the art will understand that various modifications and equivalent embodiments are possible. Therefore, the true scope of technical protection of the present invention should be determined solely by the technical spirit of the appended claims.

Claims

1. A light irradiation unit that irradiates light laterally, An upper support body and a lower support body, which are connected to the upper and lower parts of the light irradiation part and arranged vertically with the light irradiation part in between, and each having a heat dissipation part, A first inclined reflector formed on the upper circumference of the light irradiation section, which reflects upward light from the light irradiation section laterally, has an outer diameter that becomes narrower as it goes downward from the lower portion of the upper support body, and a ring-shaped upper reflector formed on the upper circumference of the light irradiation section, A light for navigational marking, characterized in that the outer diameter is formed to become narrower from the upper portion of the lower support body upward, and the second inclined reflector that reflects light irradiated downward from the light irradiation portion laterally is provided with a ring-shaped lower reflector formed on the lower circumference of the light irradiation portion.

2. In the first paragraph, the upper reflective member A first horizontal reflector is further provided that protrudes horizontally along the upper circumference of the first inclined reflector to a certain length and reflects light irradiated upward from the light irradiation unit downward. The above lower reflective member A light for navigational marking, characterized in that it further comprises a second horizontal reflector that protrudes horizontally by a certain length along the lower circumference of the second inclined reflector and reflects light irradiated downward from the light irradiator upward.

3. In the second paragraph, the upper support body A plurality of ring-shaped upper heat dissipation ribs having different diameters and continuously arranged radially from the center at regular intervals, an upper support plate connecting the lower ends of the plurality of upper heat dissipation ribs, the center being penetrated and the lower surface being in contact with the first horizontal reflector, and an upper support plate protruding downward in a ring shape at a position spaced apart from the edge of the upper support plate toward the center by a regular distance to form an upper receiving groove that is open downwardly and is formed so that the outer diameter decreases as it goes downward and is in contact with the first inclined reflector. The above lower support body A light for navigational markings, characterized by comprising: a plurality of ring-shaped lower heat-radiating ribs having different diameters and continuously arranged radially from the center at regular intervals; a lower support plate connecting the upper ends of the plurality of lower heat-radiating ribs, the center of which is penetrated and the upper surface of which is in contact with the second horizontal reflector; and a lower support plate protruding upward in a ring shape at a position spaced apart from the edge of the lower support plate toward the center by a prescribed distance to form a lower receiving groove that is open upwardly and inwardly, and whose outer diameter decreases as it goes upward, and which is in contact with the second inclined reflector.

4. In the third paragraph, the upper support plate An upper through hole with an inner diameter smaller than the upper receiving groove is formed at the center. A number of the above upper heat dissipation ribs A first group including the upper heat dissipation rib portion located at the innermost side corresponding to or having a larger inner diameter than the upper through hole, and a plurality of other upper heat dissipation rib portions continuously arranged around the innermost upper heat dissipation rib portion, A second group including another upper heat dissipation rib portion continuously arranged around the first group, The upper heat dissipation ribs of the first group above Each side is formed to protrude from the upper support plate with a length that is lower than the other side by a first length in the circumferential direction, thereby forming a cable passage groove. The upper heat dissipation ribs of the second group above A navigational beacon characterized in that each side is formed by protruding from the upper support plate with a second length that is longer in the circumferential direction than the first length and lower than the other side, with the cable passage groove at the center, thereby forming one GPS mounting groove.

5. In the third paragraph, the upper receiving groove It has an inner diameter smaller than the inner surface of the lower part of the first slope reflector. The upper support part above In order to form an upper restraining groove into which the upper end of the lens or cover of the light irradiation part is inserted together with the lower inner surface of the first inclined reflector, the lower edge of the side protruding inward from the first inclined reflector is formed to be stepped upward by a certain length along the circumferential direction. The above lower receiving groove It has an inner diameter smaller than the inner surface of the upper part of the second slope reflector. The above lower support part A light for navigational marking, characterized in that the upper edge of the side protruding inward from the second inclined reflector is formed to be stepped downward by a certain length in the circumferential direction so as to form a lower restraining groove into which the lower end of the lens or cover of the light irradiation unit is inserted together with the upper inner surface of the second inclined reflector.

6. In paragraph 1, the light irradiation unit An optical module including a plurality of light sources that radiate light laterally at regular intervals in the circumferential direction, It has a ring-shaped lens portion positioned around the periphery of the above optical module, The above lens part One side facing the light source is formed in the form of a smooth surface in the vertical direction, A light for navigational markings, characterized in that it has a plurality of unit diffusion sections having a constant width in the vertical direction, extending in the circumferential direction, and continuously arranged in the vertical direction so that the outer surface is formed as an aspherical surface that is convex outwardly as it goes from the upper and lower sides toward the center, and the curvature becomes smaller as it goes from the vertical center to the upper or lower edge.

7. In paragraph 5, the light irradiation unit An upper light-emitting unit that is accommodated in the upper receiving groove and irradiates light downward; A lower light-emitting unit that is accommodated in the lower receiving groove and irradiates light upward; A navigational beacon, characterized by comprising: an optical path conversion unit including an upper optical path conversion unit positioned below the upper light emitting unit to convert the optical path of light irradiated from the upper light emitting unit laterally; and a lower optical path conversion unit positioned above the lower light emitting unit and being symmetrical vertically with the upper optical path conversion unit to convert the optical path of light irradiated from the lower light emitting unit laterally.

8. In paragraph 7, the light irradiation unit A first collimating lens provided between the upper light emitting unit and the upper light path conversion unit to focus the light emitted from the upper light emitting unit downward, A navigational light, characterized in that it further comprises a second collimating lens provided between the lower light-emitting unit and the lower light path conversion unit to focus light emitted from the lower light-emitting unit upward.

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