CN111964006A - A hemispherical angle widening lens - Google Patents

Abstract

The invention provides a hemispherical angle-expanding lens, which relates to the field of beacon lights, comprising a hemispherical lens body and a plurality of groups of convex lens units. After the unit is refracted, it can greatly expand the boundary of the illumination angle of the lens, increase the illumination angle range to about 340°, improve the indication area of the beacon light, and further reduce the navigation risk of the channel.

Description

A hemispherical angle widening lens

technical field

The invention relates to the field of beacon lights, in particular to a hemispherical angle-expanding lens.

Background technique

The beacon light is a type of aviation obstruction light series products. It is a type of traffic light installed on some navigation marks to ensure the safe navigation of ships at night. There are four types of beacon light series products: fixed beacon, light buoy, light boat and lighthouse, and it is required to emit the specified light color and flash frequency at night to achieve the specified illumination angle and visibility distance.

Because LED lights have many advantages of low energy consumption, the existing beacon lights generally use LED lights as the light source for indicating beacon lights, but LED lights also have their own defects, that is, the illumination angle of LED lights is generally about 120°. In order to solve the problem of the illumination angle, various lenses are currently used to increase the illumination angle of the LED lamp.

At present, the lens mainly adopts the following forms: one is a plane Fresnel lens, which is mainly used in navigation lights, bridge and culvert lights, etc.; the other is a flat lattice convex mirror, which is also widely used. The third is the drum-shaped prism lens, which splits light with a prism, and the drum-shaped structure turns the point light source into parallel light to increase the range, so the drum-shaped prism lens is used in the navigation beacon lights in the sea area. The fourth is the Fresnel lens, which is widely used in inland navigation lights. The Fresnel lens has the function of extending the light in the vertical direction and turning the point light source into a parallel light source in the horizontal direction. Therefore, in the beacon light using the drum-shaped prism lens, the light source is usually made into a multi-layer light source structure, and the drum-shaped prism lens is also correspondingly made into a plurality of drum-shaped series used in series.

However, the illumination angle of the existing lens still has a large blind area, so how to increase the illumination angle of the lens has become an urgent problem to be solved by those skilled in the art.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art and provide a hemispherical angle-expanding lens.

The invention is realized through the following technical scheme: a hemispherical angle-expanding lens, comprising a hemispherical lens body and a plurality of groups of convex lens units, the convex lens units are arranged on the outer wall of the lens body in a curved circular array.

According to the above technical solution, preferably, the convex lens unit is a cone structure.

According to the above technical solution, preferably, the convex lens unit and the lens body are integrally formed.

According to the above technical solution, preferably, the middle part of the opening side of the lens body is a lamp mounting seat, and the central axis of the convex lens unit passes through the lamp mounting seat.

According to the above technical solution, preferably, the lens body and the convex lens unit are made of transparent silicone resin.

According to the above technical solution, preferably, the opening side of the lens main body is provided with a ring-shaped clamping table adapted to the lamp mounting seat.

According to the above technical solution, preferably, the upper part of the annular clamping table is provided with an annular clamping groove which is adapted to the sealing ring.

The beneficial effects of the present invention are: the plurality of groups of convex lens units of the present invention are arranged on the outer wall of the lens body in a curved circular array, and after the light beam is refracted by the convex lens units, the boundary of the irradiation angle of the lens can be greatly expanded, and the irradiation of about 340° can be realized. The angle range is increased, the indication area of the beacon light is increased, and the navigation risk of the channel is further reduced.

Description of drawings

FIG. 1 shows a schematic perspective view of an embodiment of the present invention.

FIG. 2 shows a schematic structural diagram of a front view according to an embodiment of the present invention.

FIG. 3 shows a schematic top view of the structure according to an embodiment of the present invention.

In the figure: 1. Lens body; 2. Convex lens unit; 3. Ring card stage; 4. Ring card slot.

Detailed ways

In order to make those skilled in the art better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and the best embodiments.

As shown in the figure, the present invention provides a hemispherical angle-expanding lens, comprising a hemispherical lens body 1 and a plurality of groups of convex lens units 2, and the convex lens units 2 and the lens body 1 are integrally cast and formed, and the convex lens units 2 are in a curved circular array It is arranged on the outer wall of the lens main body 1, and the convex lens unit 2 is preferably a cone structure. After the light beam is refracted by the convex lens unit 2, the boundary of the irradiation angle of the lens can be greatly expanded.

According to the above embodiment, preferably, when the lens is mounted on the lamp mount, and the lamp mount is located in the middle of the opening side of the lens body 1, the central axis of the convex lens unit 2 passes through the lamp mount, that is, the The light beam emitted by the LED lamp enters the convex lens unit 2 , and is then refracted on the outer wall of the convex lens unit 2 and injected into the air.

Further, the lens body 1 and the convex lens unit 2 are made of transparent silicone resin material, and the silicone resin material has high light transmittance and high strength.

Further, the opening side of the lens main body 1 is provided with an annular clamping table 3 which is adapted to the lamp mounting seat. The annular clamping table 3 is locked on the lamp installation seat by an adhesive or a locking bolt. There is an annular groove 4 matched with the sealing ring, and the sealing ring can enhance the waterproof performance of the lens, prevent water from entering the lens, and ensure a dry environment inside the lens.

The beneficial effects of the present invention are: the plurality of groups of convex lens units 2 of the present invention are arranged on the outer wall of the lens body 1 in a curvilinear circular array, and after the light beams are refracted by the convex lens units 2, the boundary of the irradiation angle of the lens can be greatly expanded.

The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, several improvements and modifications can be made. It should be regarded as the protection scope of the present invention.

Claims (7)

1. The hemispherical angle-expanding lens is characterized by comprising a hemispherical lens main body and a plurality of groups of convex lens units, wherein the convex lens units are arranged on the outer wall of the lens main body in a curve circumferential array mode.

2. The hemispherical angle-expanding lens of claim 1, wherein the convex lens unit is a cone structure.

3. The hemispherical corner-expanding lens of claim 2, wherein the convex lens unit is integrally formed with the lens body.

4. The hemispherical angle-expanding lens of claim 3, wherein the central portion of the open side of the lens body is a lamp mounting seat, and the central axis of the convex lens unit passes through the lamp mounting seat.

5. The hemispherical angle-expanding lens of claim 4, wherein the lens body and the convex lens unit are made of transparent silicone.

6. The hemispherical angle-expanding lens of claim 5, wherein the open side of the lens body is provided with an annular clamping platform adapted to the lamp mounting seat.

7. The hemispherical angle-expanding lens according to claim 6, wherein the annular clamping groove is formed at the upper part of the annular clamping table and is matched with the sealing ring.

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