WO2017041624A1

WO2017041624A1 - Lens and led lamp using application thereof

Info

Publication number: WO2017041624A1
Application number: PCT/CN2016/096521
Authority: WO
Inventors: 陈必寿; 姜玉稀; 杜金; 郭惠民
Original assignee: 上海三思电子工程有限公司; 三思光电科技（上海）有限公司; 上海三思科技发展有限公司; 嘉善三思光电技术有限公司
Priority date: 2015-09-11
Filing date: 2016-08-24
Publication date: 2017-03-16
Also published as: CN106524079A

Abstract

A lens (1) and LED lamp (3) using an application thereof. The lens (1) comprises: a lens main body is a structure formed by a convex curved light exit surface (11), an installation surface (10) opposite to the light exit surface (11), and two opposing end faces (12) adjoining the light exit surface (11) and the installation surface (10); the installation surface (10) of the lens main body is concave inwardly to form a light entrance surface; the light entrance surface comprises a pair of side surfaces (151) disposed towards the two opposing end faces (12) of the lens main body and a connecting surface (152) connecting the pair of side surfaces (151); the two end faces (12) of the lens main body are concave inwardly to form light reflecting surfaces (1211) towards an LED light source (2). The LED lamp (3) provided with the lens (1) is advantageous in that a light distribution effect of one of a lateral angle and a longitudinal angle can be almost seven times different from that of the other and in a high optical efficiency. Further, the optical components in the LED lamp (3) can have various combinations to meet various types of requirements for marine signal lamps.

Description

Lens and its application LED lights

Technical field

This patent application relates to the field of LED lighting technology, and more particularly to LED lamps and their applications.

Background technique

Existing signal lights, such as ship signal lights, generally use an optical structure consisting of a halogen light source, a ring-shaped threaded glass (Fresnel lens), a light barrier, and the like. Such navigation signals have the following problems: 1. Halogen light source----low luminous efficiency (the whole lamp can meet the national standard above 60W), poor seismic capacity and large volume; 2. Ring-shaped threaded glass----easy accumulation Water and ash, the light effect is rapidly reduced, there are serious safety hazards; 3, the light barrier -----, different navigation lights need different light barriers, increasing the cost of the whole lamp; b, due to the light barrier The light blocking effect, the light effect of the whole lamp is low; c, the excess energy is radiated in the form of heat, which brings great difficulty to heat dissipation. Therefore, it is necessary to provide a new type of ship navigation signal light and its optical components, which have the advantages of high luminous efficiency, small volume, strong seismic resistance, good heat dissipation and low cost.

LED (Light Emitting Diode) has become a new and competitive light source in the 21st century due to its all-solid state, high luminous efficiency, pure color, low energy consumption, long life and no pollution. With the continuous improvement of LED luminous flux and light efficiency, the application of LED in the field of illumination is more and more extensive. However, since the LED chip itself belongs to the half-space Lambertian illumination, its luminous intensity is low on both sides (large angle), and the center is small. The angle is high and cannot be directly applied to the field of illumination; therefore, the secondary optical light distribution design of the LED light source is particularly important. At present, in view of the above problem 1, there is a scheme for directly replacing the LED bulb with a halogen lamp, but the advantage of the LED is not well utilized, resulting in a large waste of light efficiency. The common secondary light distribution for LED light source is mainly lens and reflector. The lens or reflector shape is designed by non-imaging optics. The optical characteristics of the LED light source are changed by optical characteristics such as refraction and reflection, and the light emitted by the LED light source is re-applied. Assigned to get the expected illuminance distribution.

The commonly used LED secondary light distribution design can be divided into narrow light distribution, medium light distribution, wide light distribution and extra wide light distribution according to its angle; according to its shape, it can be divided into circular, oval, square and rectangular. , polygons, and more. However, all of the above LED light distribution designs are only for ordinary indoor or outdoor applications, and can not meet the light distribution requirements of the special field of ship navigation signals; for example, in a standard, as listed in Table 1, below The signal lights for ships include different standards such as the illumination angles of various types (xenon lamps, xenon lamps, ring lights, left/right side lights, etc.):

Table 1

The shapes of the lamps corresponding to different types are also different, and the existing methods are one-to-one corresponding to mold opening, and the cost is high.

Summary of the invention

In view of the above-mentioned shortcomings of the prior art, the purpose of the patent application is to provide a lens and a LED lamp for the same, which solves the problem that the LED light distribution design cannot meet the requirements of the LED signal light in the prior art, and cannot be between different types of signal lamps. The problem of interchangeability.

In order to achieve the above object and other related objects, the present patent application provides a lens comprising: a lens body, which is a solid structure, comprising: a convex arc-shaped light-emitting surface, a mounting surface opposite to the light-emitting surface, and the At least two opposite end faces that are in contact with the mounting surface; the first recessed portion that is disposed on the LED light source is recessed from the mounting surface of the lens body, and the inner surface thereof is configured to correspond to the light emitting surface a light incident surface; the light incident surface includes a pair of side faces disposed opposite the opposite end faces of the lens body and a connecting face connecting the pair of side faces; a pair of second recesses from the two of the lens bodies The end faces are recessed, and each of the second recesses forms a reflective surface toward the surface of the LED light source.

Optionally, the connecting surface protrudes toward the LED light source.

Optionally, the pair of second recesses are symmetrically disposed on the two end faces.

Optionally, the light exiting surface is provided with a light intercepting portion, and the light intercepting portion is located on at least one side of the LED light source for future Light from the LED source is refracted laterally.

Optionally, the light intercepting portion is formed by arranging a plurality of prisms having a triangular cross section.

Optionally, at least one pair of the light intercepting portions are respectively located on opposite sides of the LED light source on the light emitting surface.

Optionally, the lens body extends outward to form a convex portion, and the convex portion is provided with a perforation for fixing purposes.

Optionally, the mounting surface of the lens body is provided with a positioning portion for combining with a position to be mounted to obtain positioning.

To achieve the above objectives and other related objectives, the present patent application provides an LED lamp comprising the lens.

Optionally, the LED lamp comprises: a top cover, a base and a lamp body disposed therebetween; the lamp body comprises: a light transmissive cover;

The light source mounting member has a cylindrical shape and is disposed in the transparent cover, and at least one bearing position is formed on an outer surface of the side surface thereof, wherein each of the carrying positions is provided with an LED lighting unit, and at least each of the carrying positions An LED light-emitting unit is provided. The LED light-emitting unit includes: an LED substrate, and an LED light source is disposed on the carrying position; the lens is fixedly disposed on the LED substrate and is disposed on the LED light source. outer.

Optionally, the LED lamp further includes: a lens cover covering the lens and fixedly coupled with the light source mounting member, the lens cover having a hole portion exposing the lens.

Optionally, at least two opposite sides of the carrying position are respectively provided with a first engaging portion, and the lens cover is provided with a second engaging portion that is engaged with the first engaging portion to realize Fixed.

Optionally, the lens cover has an arch shape in cross section.

Optionally, the light source mounting member has a polygonal cross section, and each side corresponds to one carrying position.

Optionally, the light source mounting member has a regular polygonal cross section.

Optionally, the lens body extends outwardly to form a convex portion, and the convex portion is provided with a fixing-purpose perforation for engaging a fixing member to fix the lens main body to the LED substrate.

Optionally, the mounting surface of the lens body is provided with a positioning portion, and the positioning portion is combined with a position to be mounted on the LED substrate.

Optionally, the transparent cover is a transparent cover with a smooth surface.

As described above, the present patent application provides a lens and an LED lamp for use thereof, the lens comprising: a lens body having a convex curved surface, a mounting surface opposite to the light emitting surface, and the light emitting surface a structure surrounded by two opposite end faces that are in contact with the mounting surface, the mounting surface of the lens body is concavely formed into a light incident surface, and the light incident surface includes a pair of opposite end faces facing the lens body a side surface and a connecting surface connecting the pair of side surfaces, wherein the concave surfaces of the two end faces of the lens body form a reflecting surface facing the LED light source, and the LED lamp achieves a difference of lateral and longitudinal angles by installing the lens. The advantages of multiple light distribution effects and high optical efficiency, in addition, the optical components in the LED lamp can be combined in various combinations, thereby achieving various types of requirements for marine signal lamps.

DRAWINGS

FIG. 1 is a schematic view showing the outer shape of a lens in an embodiment of the present patent application.

2 is a schematic view showing the internal perspective of a lens in an embodiment of the present patent application.

Fig. 3 is a schematic cross-sectional view taken along the line A-A of Fig. 1.

Fig. 4 is a schematic cross-sectional view taken along line B-B of Fig. 1.

Figure 5 shows a schematic view of the optical path shown at the angle of Figure 3.

Figure 6 shows a schematic view of the optical path shown at the angle of Figure 4.

7 is a schematic view showing an optical path of a light intercepting portion applied to a lens in an embodiment of the present patent application.

Figure 8 is a graph showing the light distribution of a lens in an embodiment of the present patent application.

FIG. 9 is a schematic view showing the structure of an LED lamp in an embodiment of the present patent application.

Fig. 10 is a longitudinal sectional view showing Fig. 9.

Figure 11 is an exploded perspective view showing a portion of an assembly of an LED lamp in an embodiment of the present patent application.

FIG. 12a is a simplified schematic diagram showing an LED lighting unit combination for implementing an LED lamp design in an embodiment of the present patent application.

Figure 12b is a schematic view showing the structure of Figure 12a in an embodiment.

Figure 12c is a light distribution graph of the embodiment of Figure 12a.

FIG. 13a shows a simplified schematic diagram of still another LED lighting unit combination for implementing LED lamp design in an embodiment of the present patent application.

Figure 13b is a schematic view showing the specific structure of Figure 13a in an embodiment.

Figure 13c is a light distribution graph of the embodiment of Figure 13a.

Figure 14a shows a simplified schematic diagram of yet another LED lighting unit combination for implementing LED lamp design in an embodiment of the present patent application.

Figure 14b is a detailed structural view of Figure 14a in an embodiment.

Figure 14c is a light distribution graph of the embodiment of Figure 14a.

Component label description

1 lens

10 mounting surface

11 illuminating surface

12 end faces

121 second recess

1211 reflective surface

13 convex

131 perforation

14 cut light section

15 first recess

151 side

152 connection surface

2 LED light source

3 LED lights

31 top cover

32 body

321 translucent cover

322 mountings

3221 bearing position

3222 First engagement department

323 LED lighting unit

3231 LED substrate

3232 LED light source

3233 lens

324 lens cover

3241 Second engagement department

33 base

34 LED driver power supply

detailed description

The embodiments of the present patent application are described below by specific specific examples, and those skilled in the art can easily understand other advantages and effects of the present patent application by the contents disclosed in the present specification. The patent application can also be implemented or applied by different specific embodiments, and the details in the specification can also be based on different viewpoints and applications, without Various modifications or changes are possible in the spirit of this patent application. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

As shown in FIGS. 1 to 4, the present patent application provides a lens 1 including a lens body and a first recess 15 and a second recess 121 provided in the lens body.

The lens body is surrounded by a convex arc-shaped light-emitting surface 11 , a mounting surface 10 opposite to the light-emitting surface 11 , and two opposite end faces 12 that are in contact with the light-emitting surface 11 and the mounting surface 10 . The physical structure. In an embodiment, as shown in FIG. 2, the lens body may be, for example, a longitudinally-cut partial cylinder or an elliptical cylinder (for example, a semi-cylindrical or semi-elliptical cylinder), and the light-emitting surface 11 may be an arch. The arc-shaped surface is formed by a convex arc-shaped light-emitting surface 11 for the diffusion of LED light. Referring to FIG. 4 and FIG. 6, FIG. 4 is a cross-sectional view of FIG. 1 in the BB direction, and FIG. 6 is exemplarily shown. a light-emitting path under the light-emitting surface 11; the mounting surface 10 is an opposite surface of the light-emitting surface 11, and is a bottom surface, which is, for example, a flat surface, and the lens body is oriented toward the mounting surface 10 LED light source 2 is installed.

As shown in FIG. 2, the first recess 15 is recessed from the mounting surface 10 of the lens body, and is disposed outside the LED light source 2. The inner surface of the first recess 15 is configured to be The light-incident surface corresponding to the light-emitting surface 11 includes a pair of side surfaces 151 disposed toward the opposite end faces 12 of the lens body and a connection surface 152 connecting the pair of side surfaces 151. In an embodiment, the first recess 15 may be similar in shape to the lens body, and is a longitudinally sectioned partial cylinder or an elliptical body. The pair of side surfaces 151 are opposite to the pair of end faces 12, respectively. The connecting surface 152 may be a curved surface, and preferably, as shown in FIG. 2 and FIG. 3, the connecting surface 152 is convex toward the LED light source 2, so that the connecting surface 152 will be transparent. The passing light becomes parallel light. The light emitted by the light source, after passing through the lens, obtains a larger illumination angle on the radial direction of the lens and a narrower illumination angle in the axial direction of the lens, similar to the outgoing light of the fan column.

The second recessed portion 121 is formed by being recessed from the two end faces 12 of the lens body. The entire end surface 12 may be concave or partially concave, and each of the second recesses 121 faces the LED light source 2 . The surface constitutes a reflective surface (preferably a total reflection surface 1211) such that the LED light source 2 is transmitted from the pair of side surfaces 151 to the light-emitting surface 11 by reflection of the light-reflecting surface. Preferably, the one is The second concave portion 121 is symmetrically disposed on the two end faces 12 to equalize the light emitted by the two reflecting surfaces 1211; preferably, as shown in FIG. 2, the concave portions of the pair of second concave portions 121 are concave. The apex is placed on the mounting surface 10 so that each of the formed reflecting surfaces 1211 is directed toward the light exiting surface 11 without facing the mounting surface 10.

Specifically, referring to FIG. 5 , a part of the light emitted from the LED light source 2 is refracted from the light incident surface through the material medium of the lens 1 (for example, the light emitted from the connection surface 152 of the light incident surface) directly reaches the light exit surface 11 , and A portion (for example, light emitted from the side surface 151 of the light incident surface) is reflected by the reflecting surface 1211 and reaches the light emitting surface 11 , and if the second concave portion 121 The concave apex does not fall on the mounting surface 10, and a part of the reflecting surface 1211 faces the mounting surface 10, which affects the light-emitting efficiency. Of course, although it is not the most preferred embodiment, it is also covered. Within the scope of protection of this patent application.

For the working principle of the lens, referring to FIG. 5 and FIG. 6, for the convenience of description, the direction of the vertical paper surface in FIG. 5 is defined as the longitudinal direction, the left and right direction of FIG. 5 is the horizontal direction, and FIG. 6 is the cross-sectional view perpendicular to FIG. 5, then In Fig. 6, the left-right direction is the longitudinal direction, and the direction perpendicular to the paper surface is the lateral direction. As can be seen from the optical path diagram shown in FIG. 5, a part of the light emitted by the LED light source 2 passes through the connecting surface 152 to form parallel light to reach the light emitting surface 11, and the other part is formed by the reflection of the side surface 151 of the light incident surface and the reflection surface 1211. The parallel light reaches the light exit surface 11 (ideally, the parallel light is absolutely parallel, but the actual production or design is not necessarily absolutely parallel), because the reflective surface 1211 restricts the lateral light output of the LED light source 2, the light is transmitted in the lateral direction. The angle becomes smaller. On the other hand, as shown in the optical path diagram shown in Fig. 6, in the longitudinal section, after the refraction of the light incident surface and the light exit surface 11, the longitudinal propagation angle becomes large (i.e., outwardly diffused). Thereby, the half-space Lambertian illumination of the original LED light source 2 achieves the purpose of light distribution in the lateral direction and the longitudinal direction by the light distribution of the lens, and the light intensity becomes more uniform.

In summary, the lens 1 controls the light in the lateral direction and the longitudinal direction of the light source separately, and finally forms a light distribution effect that is nearly 7 times different in lateral and longitudinal angles, and meets the requirements of the ship navigation signal, and its optical efficiency is as high as 88% or more. Referring to FIG. 8, a graph of light distribution through the lens 1 is shown.

Further preferably, but not necessarily, as shown in FIG. 1 , the light-emitting surface 11 is provided with a light intercepting portion 14 , and the light intercepting portion 14 is located on at least one side of the LED light source 2 (preferably as shown in the figure) Preferably, the light intercepting portion 14 has at least one pair on the light emitting surface 11 on opposite sides of the LED light source 2; specifically, the light intercepting portion 14 may be multiple The triangular prisms are arranged in a convex arrangement, and referring to FIG. 7, it can be seen that each prism of the light intercepting portion 14 refracts the light from the LED light source 2 laterally, thereby avoiding The main light-emitting area in the middle realizes the light-cutting requirements of traffic lights, especially ship navigation signals.

Referring to FIG. 1 and FIG. 4 again, in an embodiment, the lens body is integrally formed with a convex portion 13 extending from the outer surface of the light-emitting surface 11 and the mounting surface 10, and the convex portion 13 is formed. A fixing hole 131 is provided for fixing to a position to be mounted in combination with a fixing member such as a rivet or a screw; of course, not limited thereto, for example, the mounting surface 10 of the lens body may be provided with a positioning portion for installation and installation. The position is combined to obtain a positioning, the combination includes: a concave-convex fit, a snap fit, etc., for example, the positioning portion is one or more protrusions, and the positions to be mounted are provided with a number one-to-one correspondence and shape matching A recess, which combines to position the lens body.

As shown in FIG. 9, the present patent application provides an LED lamp 3, which can be used for light distribution by applying the lens in the foregoing embodiment. According to the description of the foregoing embodiment, the LED lamp 3 using the lens can well satisfy, for example, a navigation mark. Light, ship navigation signal The lamp is required and has high optical efficiency; specifically, the LED lamp 3 includes a top cover 1, a base 33, and a lamp body 32 disposed therebetween.

Referring to FIG. 10 and FIG. 11 , in an embodiment, the lamp body 32 includes a translucent cover 321 , a mounting member 322 , and an LED lighting unit 323 .

The translucent cover 321 can be, for example, a penetrating cylindrical body, preferably of the same shape as the lamp body 32, that is, for example, a cylindrical shape to make the lateral light output uniform. In an embodiment, the transparent cover 321 is preferably a transparent cover of a smooth surface, and may be a transparent material such as glass or PC, which enables the light emitted by the lens 3233 to be transmitted with an efficiency of 94% or more, and due to its The surface is smooth without the problem of light decay caused by stagnant water and ash.

The light source mounting member 322 has a cylindrical shape and is disposed in the transparent cover 321 . At least one carrying position 3221 is formed on an outer surface of the side surface thereof. Each of the carrying positions 3221 is provided with an LED light emitting unit 323. At least one of the carrying positions 3221 is provided with an LED lighting unit 323. In an embodiment, the LED lighting unit 323 includes: an LED substrate 3231 (which may be an aluminum substrate) provided with an LED light source 3232 (such as a light source chip), which is fixedly disposed on the carrying position 3221; The lens 3233 described above is fixed to the LED substrate 3231 and is disposed outside the LED light source 3232.

Preferably, the central portion of the light source mounting member 322 penetrates to form a penetrating portion for driving the LED driving power source 34. Preferably, the penetrating portion and the LED driving power source 34 are shaped to match or the inner wall of the penetrating portion is positioned. The LED drives a component of the power source 34 or the like (not shown) to thereby position the LED driving power source 34 penetrating the penetrating portion in the radial direction; and as shown in FIG. 11 or FIG. 12b, the penetrating portion has a polygonal cross section. The polygon has a shape of three or more sides, and each side corresponds to one carrying position 3221, and the number of sides of the polygon is set according to a light distribution requirement such as a specific illumination angle of the lamp. In this embodiment, the cross section is a triangle. That is, there are three carrying positions 3221, of course, in other embodiments, not limited thereto. Preferably, the polygon may be a regular polygon, which is preferably an equilateral triangle in this embodiment, since the LED lighting unit 323 is provided The light source mounting member 322 has a bearing position 3221 on the side of the light source mounting member 322, so that the light distribution in each direction can be made uniform by the regular polygonal shape; and, as shown in FIG. 10, the top cover 131 and the base 33 can be provided with a shape corresponding to the LED driving. Electricity The source 34 and the light source mounting member 322 have matching cross-sectional shapes, so that the light source mounting member 322 can be positioned between the top cover 131 and the base 33 in combination with the recess. Similarly, the top cover 131 and the base 33 are preferably A concave portion having a shape matching the cross section of the transparent cover 321 may also be provided, and the light transmissive cover 321 may also be positioned.

As shown in FIG. 11 , the LED lamp 3 further includes a lens cover 324 that is fixedly coupled to the lens 3233 and fixedly coupled to the light source mounting member 322. The lens cover 324 has the exposed cover. The hole portion of the lens 3233 (for example, the square hole shown in the figure); specifically, referring to FIG. 12b, at least opposite sides of the carrying position 3221 are respectively provided with a first engaging portion 3222, and the lens cover 324 is provided a second engaging portion 3241 that is engaged with the first engaging portion 3222 one by one to achieve the fixing, The first engaging portion 3222 and the second engaging portion 3241 may be oppositely bent in opposite bending directions. As shown, the first engaging portion 3222 is a pair of upwardly loaded positions 3221. a structure formed by bending and bending in an opposite direction (outward in the drawing), and the second engaging portion 3241 is bent in the same direction on both sides of the lens cover 324 but with the first card The folded portion of the hinge portion 3222 is bent in the opposite direction so that the lens cover plate 324 can be fixed to the carrying position 3221 by being engaged.

In an embodiment, it can be seen from the figure that, preferably, the lens cover 324 has an arch shape in cross section so as to neither obstruct the main light-emitting area of the lens 3233 nor limit the stray light of the edge of the lens 3233 to the main light-emitting area. Impact.

In an embodiment, as described above, the lens body extends outwardly from the junction of the light-emitting surface 11 and the mounting surface 10 to form a convex portion 13 , and the convex portion 13 is provided with a perforation 131 for fixing purposes. The through hole 131 is provided with a fixing member such as a rivet or a screw to fix the lens main body to the LED substrate 3231, or in another embodiment, the mounting surface 10 of the lens main body is provided with a positioning portion, and the positioning is performed. The portion is coupled to the position to be mounted on the LED substrate 3231, and the engaging portion is, for example, a concave-convex fit or a snap-fit combination.

Referring to Figures 12a - 14c, the different combinations of LED lighting units 323 (i.e., LED light source 3232 plus lens 3233) are shown to achieve different types of signal lights:

For example, FIG. 12a shows a simplified schematic structural diagram, in which only one side of the carrying position 3221 is provided with the LED lighting unit 323 or only the LED lighting unit 323 of the one side carrying position 3221 is illuminated, thereby realizing, for example, one-sided comparison of the navigation signal light. The design of the signal light (such as left/right sidelights, etc.) for light-emitting requirements at a small angle (60° to 120°); the structural diagram of the specific implementation is shown in Figure 12b, and the corresponding light distribution curve is shown in Figure 12c.

For another example, as shown in FIG. 13a, the LED light-emitting unit 323 is disposed on both side carrying positions 3221 or only the LED light-emitting units 323 of the two-side carrying position 3221 are illuminated, thereby achieving, for example, a single-angle small angle (120°-240°) illumination in a ship signal light. The design of the required signal light (such as xenon lamp, xenon lamp, tow lamp, etc.); Figure 13b shows the structural diagram of the specific implementation, and Figure 13c is the corresponding light distribution curve.

For example, in FIG. 14a, the LED light emitting unit 323 is disposed on the three side carrying positions 3221 or the light sources of the three side carrying positions 3221 are all illuminated, thereby realizing a design of a large angle (240° to 360°), for example, a ring light in a ship signal light; 14b shows a structural diagram of a specific implementation, and FIG. 14c is a corresponding light distribution graph.

It can be seen that, by using the LED lamp provided by the patent application, the following functions can also be realized: different types of signal lamps can be realized by adjusting the number and position of LED lighting installations without any other changes to the main structure of the lamp. It can increase the applicability of the product and greatly reduce the cost of mold opening.

It should be noted that, although the signal light for ship navigation is shown in the above embodiment, in other embodiments, the LED lamp provided by the present invention can also be used as, for example, an navigation signal light or an aeronautical signal light.

In summary, the present patent application provides a lens and an LED lamp for use thereof, the lens comprising: a lens body, a light-emitting surface formed by a convex arc surface, a mounting surface opposite to the light-emitting surface, and the light-emitting surface a structure surrounded by two opposite end faces that are in contact with the mounting surface, wherein a mounting surface of the lens body is concavely formed into a light incident surface, and the light incident surface includes a pair disposed toward opposite end faces of the lens body a side surface and a connecting surface connecting the pair of side surfaces, wherein the concave surfaces of the two end faces of the lens body form a reflective surface facing the LED light source, and the LED lamp achieves a lateral and longitudinal angle difference by mounting the lens With 7 times of light distribution effect and high optical efficiency, in addition, the optical components in the LED lamp can be combined in various combinations, thereby realizing various types of requirements for marine signal lamps.

The above embodiments are merely illustrative of the principles and effects of the present patent application, and are not intended to limit the present patent application. Modifications or variations of the above-described embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and scope of the invention will be covered by the appended claims.

Claims

A lens comprising:

The lens body is a solid structure, and includes: a convex arc-shaped light-emitting surface, a mounting surface opposite to the light-emitting surface, and at least two opposite end surfaces that are in contact with the light-emitting surface and the mounting surface;

The first recessed portion of the LED light source is recessed from the mounting surface of the lens body, and an inner surface thereof defines a light incident surface corresponding to the light exiting surface; the light incident surface includes a lens facing the lens a pair of side faces disposed on opposite end faces of the main body and a connecting face connecting the pair of side faces;

A pair of second recesses are formed concavely from both end faces of the lens body, and each of the second recesses forms a light reflecting surface toward a surface of the LED light source.
The lens according to claim 1, wherein said connecting surface is convex toward said LED light source.
The lens according to claim 1, wherein said pair of second recesses are symmetrically disposed on said two end faces.
The lens according to claim 1, wherein the light exiting surface is provided with a light intercepting portion, and the light intercepting portion is located on at least one side of the LED light source for illuminating light from the LED light source to the side. Refraction.
The lens according to claim 4, wherein the light intercepting portion is formed by arranging a plurality of prisms having a triangular cross section.
The lens according to claim 4, wherein at least one pair of the light intercepting portions are respectively located on opposite sides of the LED light source on the light emitting surface.
The lens according to claim 1, wherein said lens body extends outwardly to form a convex portion, and said convex portion is provided with a perforation for a fixed use.
The lens according to claim 1, wherein the mounting surface of the lens body is provided with a positioning portion for being combined with a position to be mounted to obtain positioning.
An LED lamp characterized by comprising the lens according to any one of claims 1 to 8.
The LED lamp according to claim 9, wherein the LED lamp comprises: a top cover, a base and a lamp body disposed therebetween; the lamp body comprises:

Translucent cover

The light source mounting member has a cylindrical shape and is disposed in the transparent cover, and at least one bearing position is formed on an outer surface of the side surface thereof, wherein each of the carrying positions is provided with an LED lighting unit, and at least each of the carrying positions One is provided with an LED lighting unit;

The LED lighting unit includes:

The LED substrate is provided with an LED light source and is fixedly disposed on the carrying position;

The lens is fixedly disposed on the LED substrate and is disposed outside the LED light source.
The LED lamp of claim 10, further comprising: a lens cover that covers the lens and is fixedly coupled to the light source mounting member, the lens cover having a hole exposing the lens unit.
The LED lamp of claim 11, wherein at least two opposite sides of the carrying position are respectively provided with a first engaging portion, and the lens cover is provided with a card one by one with the first engaging portion The second engaging portion is engaged to achieve the fixing.
The LED lamp of claim 11 wherein said lens cover is arched in cross section.
The LED lamp of claim 10 wherein said light source mounting member has a polygonal cross section, each edge corresponding to a load bearing position.
The LED lamp according to claim 10, wherein the lens body extends outwardly to form a convex portion, and the convex portion is provided with a perforation for fixing purposes, and the through hole is provided for wearing the fixing member to fix the lens main body. The LED substrate.
The lens according to claim 10, wherein the mounting surface of the lens body is provided with a positioning portion that is coupled to a position to be mounted on the LED substrate.
The LED lamp of claim 10 wherein said light transmissive cover is a transparent cover having a smooth surface.