KR101698175B1 - Lens for marine lantern - Google Patents

Abstract

The present invention provides a lens (10) for a marine lantern (1), made to have superior visibility of the light of a light emitting diode (LED) (E) of a marine lantern (1) using the LED (E) as a light source from both long and short distances. According to the present invention, the lens comprises: an LED insertion part (20) fixed and installed to individually correspond to the outside of one LED (E) of an LED module (6), and having an opened rear side to receive the LED (E); a refractive part (30) including a refractive incident surface (31) formed on the front surface of the LED reception part (20) and a refractive surface (32) having a middle part with a larger thickness in comparison with that of the upper and the lower part in the outside of the refractive incident surface (31); a reflective part (40) including a reflective incident surface (41) formed on the upper and the lower surface of the LED reception part (20), a reflective surface (42) installed with a slope in the upper and the lower part of the reflective incident surface (41) to reflect and refract the light, and a reflective and refractive surface (43) in contact with the upper and the lower part of the refractive surface (32) of the refractive part (30) in the outside of the reflective surface (42); a combination flange part (50) projecting out from both sides of the lens (10); and a substrate reception part (60) formed with a step inside both sides of the combination flange parts (50). Thus, since the lens (10) is fixed and installed by individually corresponding to one LED (E), interference of light between the neighboring LEDs (E) while the light of each LED (E) is refracted to minimize diffusion, so visibility is maximized from both long and short distances.

Description

Lens for marine lantern}

The lens of the present invention is a lens for a mirror lamp. More specifically, the lens is provided in front of each LED in a mirror lamp using an LED as a light source, The lens of the present invention can maximize the visibility of the lens.

In the lens of the lightening machine, generally, the lightening device is installed as a sign that recognizes the harbor and the coast, and is installed so as to blink with various colors such as bridges, breakwaters, breakers, unmanned lighthouses or light buoys. In order to prevent the ship from colliding with the port or the coast of the ship or to accurately and safely induce the ship to the docking position by accurately marking the course of the ship. In the case of such a lighthouse, a gas lamp or an incandescent lamp However, due to the increase in maintenance cost and short life span, LEDs (Light Emitting Diodes), which have a long life span and are greatly reduced in maintenance cost, are used in recent years.

In such a luminaires, the light from a light source such as a gas lamp, an incandescent lamp, or an LED is refracted and reflected by using a lens or a reflector to collect light to be emitted to the outside. (Published on September 1, 2006), a fresnel lens having a number of pieces formed in a circumferential direction on the outer surface thereof by injection molding a cylindrical acrylic is used outside the lamp housing, As disclosed in Korean Patent No. 813121 (published on Mar. 17, 2008), the light source of the light bulb uses a high-brightness LED, and as the light source lens of such light source, (Or annular) or ring-shaped or band-like shape, and a convex lens portion formed by a curved surface is formed in the upper and lower flanks and the center outward, The conventional Fresnel lens has difficulty in forming the conventional Fresnel lens and the manufacturing cost is increased. In addition, even if the Fresnel lens is molded, zigzag rugged pieces are formed on the surface, (Such as a wheel, a band, and the like) lens can prevent diffusion of the light of the LED up and down to some extent. However, the light diffusion of the upper and lower sides It is difficult to transmit the light source to a very long distance and thus there is a limit to improve the visibility. Conventional Fresnel lenses and ring type lenses have a problem in that they can not be blocked completely And a number of other problems.

KR 10-0617492 B1 2006. 9. 1. KR 10-0813121 B1 2008. 3. 17.

In the present invention, in order to solve all the problems of the prior art described above, a new technology has been invented. In the case of a conventional lens for a soccer ball, in the case of a Fresnel lens, a very small irregular piece formed on the outer surface of the Fresnel lens is molded accurately In the case of the ring type lens, the diffusion of the upper and lower LED light could be partially refracted and reflected to collect some, but it was not possible to completely block the upward and downward light diffusion. In addition, since the light of the light emitting device can not be diverted to a long distance, the visibility of the light emitting device is lowered. Therefore, the present invention solves the problems of the prior art, Having an extremely conservative advantage, it radiates vertically Minimizes the diffusion and interference of light by refraction and reflection by the light of the light of the light, and the light of the light of the light which is emitted horizontally also minimizes the diffusion and interference of light by refraction and reflection, thereby improving the visibility in both distance and near The present invention has been accomplished on the basis of a problem to be solved by the invention.

According to an aspect of the present invention, there is provided a lens for a soccer player, wherein the lens for a soccer player of the present invention is fixedly provided on an outer side of one LED in the LED module of the light- ; And an LED inlet formed with a groove formed at a predetermined depth from a rear surface of the rear opening to allow the LED to be inserted into the opening; The front surface and the side surface of the LED inlet have a refracting incident surface formed to be arc-shaped as a plane perpendicular to the height of the LED inlet portion and adapted to receive light emitted from the LED, and upper and lower portions located outside the refracted incident surface And a refracting portion that is thin and has a refracting surface formed thicker than the upper and lower portions, the refracting portion being configured to refract and collect outwardly the LED light passing through the refracting incident surface; A reflective incidence surface formed so as to be in contact with the refraction incidence surface so as to receive light emitted from the LED at the upper and lower surfaces of the LED inlet portion and a reflective incidence surface formed on the upper and lower sides of the upper and lower reflective incidence surfaces to be refracted by outwardly reflecting the light received from the reflective incident surface And a reflection refracting surface formed so as to be in contact with an upper portion and a lower portion of the refracting surface of the refracting portion at the outer periphery of each of the reflection surfaces so that the LED light reflected on the reflection surface through the reflection incidence surface is reflected by the reflection refracting surface And a reflecting unit configured to refract and gather outwardly by the reflecting unit; A coupling flange portion protruding from both sides of the lens so that the lens is fixedly coupled to the heat dissipation plate on which the LED substrate is fixed by a fastener; A substrate inserting portion formed inwardly inwardly from the rear surface of the heat dissipating plate to the inside of the both side coupling flange portions; .

According to a specific means for solving the above-mentioned problems, in the lens of the present invention, when a plurality of LEDs are radially installed on a single LED substrate at a predetermined interval in a radial direction, Since each of the LEDs is fixed so as to correspond to each other, the light is refracted to minimize the diffusion of light between neighboring LEDs, thereby maximizing the visibility both at a long distance and at a short distance.

In addition, since the lens is formed of a transparent synthetic resin material, the transmittance is high and molding is easy, so that the manufacturing cost can be remarkably reduced.

In the present invention, the LED substrate is provided with a positive positioning hole formed to be spaced apart from the LED at a predetermined interval, and a positive positioning projection protruding from the rear of the substrate inner side portion of the lens corresponding to the positive positioning hole, The correct position of the lens can be achieved by correctly positioning the LED in the middle of the lens inlet of the lens.

Also, the vertical divergence angle of the refracting portion is limited to 5 to 6 degrees, and the refracting surface of the refracting portion and the reflecting surface of the reflecting portion are made aspheric, and the angle between the upper and lower reflection incidence surface and the reflection refracting surface, It is a very inventive effect that the light is straightened at the refraction refracting surface while increasing the absorption amount of the LED light, so that the LED light emitted to the upper and lower sides of the refracting portion is more efficiently emitted.

Fig. 1 is a perspective view showing an example in which the lens of the present invention is installed in a light-
FIG. 2 is a perspective view showing the inside of FIG. 1,
Fig. 3 is a perspective view of the LED module shown in Fig. 1,
FIGS. 4 and 5 are perspective views showing front and rear outer shapes of the lens holder lens provided by the present invention. FIG.
FIG. 6 is a cross-
7 is a cross-sectional view taken along the line II-
8 is a rear view of the lens provided by the present invention
9 is a partial cross-sectional view showing a state in which a lens provided in the present invention is installed in one LED module

The present invention is provided in front of each LED in a luminaires that use an LED as a light source so that LED light can be seen far away and can be clearly seen even close to each other, This lens is more specifically described as follows.

As shown in FIGS. 1 to 3, the lamp unit 1 in which the lens 10 provided in the present invention is installed is provided with a bridge, a breakwater, a wave agent, an unmanned lighthouse, A light emitting unit 3 configured to emit light when electricity supplied with a plurality of LEDs E is supplied to an upper portion of the lower reflector 2; A controller 4 which is installed on the upper side of the main body 2 so as to supply GPS information while controlling the blinking and the quality of the LED E and a controller 4 which is fixed to the upper edge of the lower housing 2, And an upper illuminator 5 configured to diverge the light emitted from the LED E to the outside.

As shown in FIGS. 2 and 3, the light emitting unit 3 includes a plurality of LED modules 6 installed radially so as to emit light toward the outside, Several lenses 10 corresponding to the respective LEDs E provided on the LED module 6 and configured to individually converge and reflect the light emitted from the respective LEDs E are collectively shown in FIG. As shown in FIG.

The LED module 6 includes a vertical strip 7 having upper and lower ends fixed so as to extend radially between the lower plate 7a and the upper plate 7b and a plurality of LEDs And a heat dissipation plate 8 made of an aluminum material excellent in thermal conductivity so that the heat generated from the LED E can be quickly transferred and dissipated while the installed LED substrate E1 is fixedly installed, (7) is also made of an aluminum material or the like having excellent thermal conductivity so that it can dissipate quickly when heat is transferred through the heat dissipating plate (8).

1 to 3, the lens 10 for a lamp unit 1 of the present invention is disposed outside the one LED E in the LED module 6 of the light emitting unit 3, individually, 4 and 5, the lens 10 has an LED inlet 20 formed with a groove formed at a predetermined depth from the rear with the rear thereof being opened so that the LED E is inserted and positioned therein .

As shown in FIGS. 6 and 7, the front and the side surfaces of the LED inlet 20 are formed arc-shaped in a plane perpendicular to the height of the LED inlet 20 so as to emit light emitted from the LED E And a refracting surface 32 formed on the outer side of the refracting incident surface 31 to have an upper portion and a lower portion which are thinner than the middle portion and a middle portion which is thicker than the upper and lower portions and which are formed so as to pass through the refracting incident surface 31 A refracting portion 30 configured to refract and converge outwardly by the refracting surface 32 is provided.

A reflective incidence surface 41 having one surface in contact with the refraction incidence surface 31 so as to receive light emitted from the LED E on the upper and lower surfaces of the LED inlet 20, A reflection surface 42 formed so as to be inclined upward and downward at an outer side of the upper and lower outer sides of the upper and lower reflection incident surfaces 41 so as to be reflected and reflected outwardly, And a reflection refracting surface 43 formed to be in contact with the upper and lower surfaces of the refracting surface 32 of the reflecting surface 43. The light reflected by the reflecting surface 42 passes through the reflecting incidence surface 41, And a reflecting portion 40 configured to be refracted outwardly and gathered.

And a coupling flange 50 protruding from both sides of the lens 10 so as to be fixedly coupled to the heat dissipating plate 8 to which the LED substrate E1 is fixed by a fastening hole 8a, And a substrate inserting portion 60 formed inside the double-sided engaging flange portion 50 so as to be forwardly and internally inserted into the rear surface of the heat dissipating plate 8 is provided.

The lens substrate E1 is provided with a positive positioning hole 70 which is spaced apart from the LED E by a predetermined distance so as to be coupled with the lens 10 in a correct position relative to the lens 10, Position fixing protrusions 80 protruding rearward from the substrate inserting portion 60 to be engaged with the stationary positioning holes 70 of the stationary fixing holes 70. [

In addition, the upper and lower reflective portions 40 are formed integrally with the lens 10 so as to be flat at a portion not irradiated with the light of the LED E, so that when the lens 10 is cured after molding, It is possible to provide the deformation preventing piece 90 configured to prevent deformation of the portion 20 or the reflecting portion 40. [

The vertical divergence angle of the refracting portion 30 may be 5 to 6 ° and the upper and lower portions of the refracting surface 32 of the refracting portion 30 may be an aspherical surface bent backward. Since the refraction portion 30 refracts and narrows the vertical divergence angle at 5 to 6 degrees, the light of the LED (E) can be surely confirmed at a long distance from the refraction portion 30 And the refracting surface 32 of the refracting portion 30 is formed as an aspherical surface bent upward and downward in order to allow the light of the LED E to be seen clearly even at a short distance, When the slope 42 is formed into an aspheric surface whose inside and outside are curved downwardly, the light of the LED E that has flowed through the reflection incident surface 41 is collected and a larger amount of light of the LED E is reflected by the reflection refraction surface 43 of the outside So that it can be reflected.

At this time, the angle formed by the upper reflection incident surface 41 and the lower reflection incident surface 41 of the LED inlet 20 may be 3.5 °, and the reflection refracting surface of the reflection portion 40 The angle of inclination of the reflection incident surface 41 as described above can absorb the light of the LED E more smoothly and is supplied to the reflection surface 42 And the inclined angle is given to the reflection refracting surface 43 to refract the light of the LED E reflected by the reflecting surface 42 to narrow the angle of divergence so that the light can be seen at a long distance.

In the lens 10 for a luminaires 1 according to the present invention having the above-described configuration, several LEDs E are arranged on the LED substrate E1 at equal intervals in the vertical direction at the light emitting portion 3 of the luminaires 1, The substrate E1 is provided correspondingly to the outside of each LED E of the LED module 6 fixedly installed by the heat dissipating plate 8 and the vertical strip 7, The vertical divergence angle and the horizontal divergence angle can be specified so that the light of the LED E can be condensed so that it can be seen at a long distance and can be clearly confirmed even at a short distance. Thus, the visibility is greatly improved as a whole, (E) light is reduced by minimizing the interference of light to each other, thereby improving the divergence efficiency of the LED (E) light by improving the divergence efficiency due to the interference of the LED will be.

In addition, according to the present invention, it is possible to improve the brightness of the LED (E) by improving the transmittance by using a transparent synthetic resin material, The aspherical surface of the refracting surface 32 or the reflecting surface 42 of the reflecting portion 40 can be formed easily and simply so that the visibility of the projector 1 can be improved by changing the shape of the lens 10, It also has an effect that can be remarkably saved.

The fixed position protrusion 80 is connected to the fixed position engaging hole 70 formed in the LED substrate E1 so as to be spaced apart from the LED E by a predetermined distance from the substrate inserting portion 60 of the lens 10 The lens 10 can be provided in the LED module 6 so as to be accurately aligned with the LED E when the positive positioning hole 70 and the positive positioning projection 80 are coupled with each other, As shown in the figure, when the LED (E) emits light with reference to one LED module (6), the light is always emitted at a constant brightness, constant intensity and constant direction by the correct mounting position of the lens It is possible to remarkably improve the assembling performance and installation accuracy of the machine 1, and the like.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It should be understood that the scope of the claims is not limited to the examples but covers the scope of the claims and the scope of equivalents thereof.

E: LED E1: LED substrate 1: lighting device
2: lower reflector 3: light emitting portion 4: control portion
5: upper reflector 6: LED module 7:
7a: lower plate 7b: upper plate 8: heat radiating plate
8a: fastener 10: lens 20: LED inlet
30: refraction part 31: refraction incidence surface 32: refraction surface
40: reflection part 41: reflection reflection surface 42: reflection surface
43: reflection refracting surface 50: engaging flange portion 60:
70: Fixed position engaging hole 80: Fixed position fixing projection 90:

Claims (5)

Claims [1] A lens for a sunlight, comprising: (1) an LED module (6) of a light emitting unit (3);
An LED inlet 20 having a groove formed at a predetermined depth from a rear surface of the rear opening so that the LED E is inserted and inserted therein;
The refracting incident surface 31 is formed on the front surface and the side surface of the LED inlet 20 so as to be arc-shaped and perpendicular to the height of the LED inlet 20 to receive light emitted from the LED E, A refracting portion 30 composed of a refracting surface 32 formed on the outer side of the refracted incident surface 31 so that the upper and lower portions are thinner than the middle portion and the intermediate portion is bent more thickly than the upper and lower portions;
A reflective incidence surface 41 formed in contact with the refraction incidence surface 31 so as to receive light emitted from the LED E on the upper and lower surfaces of the LED inlet 20, A reflection surface 42 formed so as to be inclined upward and downward at an outer side of the upper and lower outer sides of the upper and lower reflection incident surfaces 41 so as to be reflected and refracted, A reflection part 40 composed of a reflection refracting surface 43 formed to be in contact with an upper part and a lower part of the refracting surface 32;
A coupling flange portion 50 protruding from both sides of the lens 10 so that the lens 10 is fixedly coupled to the heat dissipating plate 8 to which the LED substrate E1 is fixed by a fastening hole 8a;
And a substrate inserting portion (60) which is formed in such a manner that the inserting flange portion (50) is forwardly inwardly inserted into the rear surface of the heat dissipating plate (8)
Wherein the upper and lower portions of the refracting surface (32) of the refracting portion (30) are formed as an aspherical surface bent to bend backward so that the vertical divergence angle of the refracting portion (30) is 5 to 6 degrees.
delete The method of claim 1,
The lens 10 is integrally formed on the inner side of the upper and lower reflective portions 40 of the LED inlet 20 in such a manner that it is flat with the portion where the LED E does not reach, A deformation preventing piece 90 configured to prevent deformation of the LED-receiving portion 20 or the reflecting portion 40 of the LED 10;
And a second lens group having a positive refractive power.
delete The method of claim 1,
The angle formed between the upper and lower reflection incident planes 41 of the reflection unit 40 and the horizontal direction is 3.5 degrees;
The upper and lower reflective surfaces 42 of the reflecting portion 40 are aspherical surfaces;
And an angle formed by the vertical reflection reflections 43 of the reflection part 40 and the horizontal direction is 63.4 degrees.
Wherein the lens is a lens.

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