A light source and navigation light based on the principle of light concentration.

Abstract

This invention discloses a light source and navigation light based on the principle of light focusing, relating to the field of navigation signal technology. It includes a light-emitting circular plate, a lower condenser, a light chip, a Fresnel lens, a focusing element, and a light-blocking element. The light chip is installed at the small-diameter end of the lower condenser, the light-emitting circular plate is fixed at the large-diameter end of the lower condenser, the Fresnel lens is installed inside the lower condenser, and the reflector is disposed on the inner wall between the Fresnel lens and the light chip. The light chip utilizes the Fresnel lens to uniformly emit light into the light-emitting circular plate, ensuring the uniformity of the light entering the plate. This results in more uniform light emission. The focusing element reflects and refracts the emitted light from the light chip, uniformly concentrating the light onto the Fresnel lens, maximizing the focusing effect, increasing light intensity, improving the light intensity of the light source, and increasing the light utilization rate.

Description

Technical Field

[0001] This invention relates to the field of navigation signal technology, specifically to a light source based on the principle of focusing light and a navigation light. Background Technology

[0002] Navigation lights are nighttime luminous devices installed on shore or water to ensure the safe navigation of ships at night. They emit a specified light color and flashing frequency at night, and the uniformity of their light emission is an important standard. Existing navigation lights all use light sources such as… Figure 1 As shown, multiple LED beads 11 are uniformly and circularly installed around the circuit board 10. The light emitted by the multiple LED beads 11 is diffused outward. In order to increase the light emission uniformity of this type of light source, the number of LED beads 11 needs to be increased. However, the light emission uniformity can only reach about 90% at most. Multiple LED beads 11 increase the manufacturing cost and power consumption, and the demand for electrical energy is also large.

[0003] In view of the above-mentioned defects, the inventors of this invention have finally obtained this invention after a long period of research and practice. Summary of the Invention

[0004] The purpose of this invention is to provide a light source and a navigation light based on the principle of focusing light, which solves the technical problems of traditional navigation lights that require adding more LEDs to improve their light uniformity, have high manufacturing costs, and high power consumption.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution: The present invention includes a light-emitting circular plate, a lower condenser, a lamp chip, a Fresnel lens, a light-concentrating element, and a light-blocking element; the lamp chip is installed at the small-diameter end of the lower condenser, the light-emitting circular plate is fixed at the large-diameter end of the lower condenser, the Fresnel lens is installed inside the lower condenser, the reflector is disposed on the inner wall between the Fresnel lens and the lamp chip, the light-concentrating element is used to focus the light emitted by the lamp chip onto the Fresnel lens, the light entering the Fresnel lens will be uniformly transmitted and illuminate the light-emitting circular plate, and the light-blocking element is disposed on the upper side of the light-emitting circular plate to prevent light from escaping from the upper side of the light-emitting circular plate.

[0006] Preferably, the light-blocking component includes a plurality of annular light-focusing protrusions uniformly etched on the inner wall of the lower light-focusing cover, and the plurality of annular light-focusing protrusions are distributed along the axial direction of the lower light-focusing cover; the annular light-focusing protrusions have a reflective surface and a refracting surface, and the horizontal angle between the reflective surfaces of the plurality of annular light-focusing protrusions is positively correlated with their position relative to the lamp chip; when the emitted light emitted by the lamp chip illuminates the reflective surface, the emitted light reflected by the emitting surface is the reflected light, and the emitted light entering the annular light-focusing protrusions and exiting from the refracting surface is the refracted light; both the reflected light and the refracted light are incident on the Fresnel lens, and the vertical angle between the refracted light and the horizontal plane of the Fresnel lens forms a 90° angle.

[0007] Preferably, the outer circumferential surface of the light-emitting circular plate has an arc-shaped structure with an angle of 20°-35°, specifically matching the Fresnel lens of the lampshade.

[0008] Preferably, the light-blocking component is a light-blocking cover, which is bonded or screwed to the upper surface of the light-emitting circular plate.

[0009] Preferably, the light-blocking component is an upper light-concentrating cover, which is fixed to the upper surface of the light-emitting circular plate. The upper light-concentrating cover is hemispherical, and the lower light-concentrating cover is a trumpet-shaped structure.

[0010] Preferably, the light-emitting circular plate is provided with circular positioning parts on both the upper and lower surfaces, and the two positioning parts cooperate with the light-blocking component and the lower light-concentrating cover, respectively.

[0011] Preferably, the light-blocking component and the lower light-concentrating cover are fixed to the corresponding positioning parts by screwing or bonding.

[0012] The present invention also proposes a navigation light, comprising the above-described light source, Fresnel lens cover, and base; the Fresnel lens cover is mounted on the upper side of the base, and the light source is mounted on the inner side of the Fresnel lens cover.

[0013] Preferably, it also includes an optical sensor and a solar panel; the optical sensor and the solar panel are both mounted on a base, the base is provided with a storage battery and a control circuit board, the solar panel charges the storage battery, and the storage battery, control circuit board, optical sensor and light source are electrically connected.

[0014] Preferably, the solar panel is arranged around the base at a 360° angle, and the solar panel is tilted. There are two types of tilt angles: one is that the solar panel and the base are separate, and the tilt angle of the solar panel is 30°-45°; the other is that the solar panel and the base are integrated, and the tilt angle of the solar panel is 60°-65°.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. The lamp chip utilizes a Fresnel lens to uniformly emit light into the light-emitting disc, ensuring the uniformity of light entering the disc and thus making the light output more uniform. A focusing element reflects and refracts the emitted light from the lamp chip, uniformly focusing it onto the Fresnel lens to maximize the focusing effect, increase light intensity, and improve the effective light intensity of the light source. This improves light utilization while achieving the goal of using fewer lamp chips, lower power consumption, and stronger light output. Compared with traditional methods, it saves energy consumption and improves the light uniformity at 50% light intensity. Light fixtures using the light source described in this invention have consistent luminous intensity at any angle, improving the visibility and perceptibility of the light fixture.

[0017] 2. The light emitted by the lamp chip enters the light-emitting disc and is then evenly dispersed through the side of the light-emitting disc at an angle of 360°, achieving 100% light emission uniformity.

[0018] 3. The navigation light adopts a light source that can effectively increase brightness, reducing the number of LED beads while still achieving standard light intensity, thereby reducing production costs and the lamp's battery life. Attached Figure Description

[0019] Figure 1 This is a top-view diagram of a traditional light source structure.

[0020] Figure 2 This is a schematic diagram of the structure of the first embodiment of the light-blocking component in the light source;

[0021] Figure 3 This is a schematic diagram of the structure of a second embodiment of the light-blocking component in a light source;

[0022] Figure 4 This is a schematic diagram of the structure of the ring-shaped focusing protrusion.

[0023] Figure 5 This is a schematic diagram of the structure of a navigation light;

[0024] The numbers in the image represent:

[0025] 1-Light-emitting circular plate; 2-Lower condenser cover; 31-Light-blocking cover; 32-Upper condenser cover; 4-Lamp chip; 5-Mounting vertical rod; 6-Fresnel lens cover; 7-Base; 8-Optical sensor; 9-Solar panel; 10-Circuit board; 11-Lamp bead; 101-Positioning part; 12-Fresnel lens; 13-Annular condenser protrusion; 13a-Reflective surface; 13b-Refracting surface; a-Emitted ray; b-Refracted ray; c-Reflected ray. Detailed Implementation

[0026] The above-mentioned and other technical features and advantages of the present invention will be described in more detail below with reference to the accompanying drawings.

[0027] Example 1

[0028] This embodiment provides a technical solution: (Refer to...) Figure 2 A light source based on the principle of light concentration includes a light-emitting circular plate 1, a lower condenser 2, a lamp chip 4, a Fresnel lens, a light-concentrating element, and a light-blocking element. The light-emitting circular plate 1 is made of a high-transmittance material, such as PC, and its diameter is 30mm-73mm, with the specific size set according to actual needs. The lower condenser 2 has a flared structure, with its large-diameter end fixed to the light-emitting circular plate 1. The lower side of the light-emitting circular plate 1 has a circular positioning part 101, which is adapted to the inner diameter of the large-diameter end of the lower condenser 2. The positioning part 101 and the lower condenser 2 are connected by adhesive or threads.

[0029] The lamp chip 4 is installed at the inner bottom of the lower condenser 2, that is, at the small diameter end of the lower condenser 2. Its working voltage can be DC6V, DC7.4V, DC9V or DC12V. A mounting through hole is opened at the center of the lower condenser 2. The lamp chip 4 is fixed to the lower side of the lower condenser 2 by a threaded part, and the mounting through hole corresponds to the position of the lamp chip 4. A Fresnel lens 12 is fixed inside the lower condenser 2 by adhesive bonding. The lamp chip 4 is installed at the focal point of the Fresnel lens 12. The emitted light a of the lamp chip 4 passes through the Fresnel lens 12, and then the light will be evenly emitted from the Fresnel lens 12 and enter the light-emitting circular plate 1, ensuring the uniformity of the light entering the light-emitting circular plate 1, thereby making the light emitted from the light-emitting circular plate 1 more uniform, improving the light and the usability of the effective light intensity.

[0030] The light-concentrating element includes a plurality of annular light-concentrating protrusions 13 uniformly etched on the inner wall of the lower light-concentrating cover 2. The annular light-concentrating protrusions 13 are made of light-transmitting and reflective materials, and the plurality of annular light-concentrating protrusions 13 are distributed along the axial direction of the lower light-concentrating cover 2. The diameter of the plurality of annular light-concentrating protrusions 13 is positively correlated with the diameter of the lower light-concentrating cover 2.

[0031] The annular focusing protrusion 13 has a reflective surface 13a and a refractive surface 13b. The reflective surface 13a is close to the lamp chip 4. The emitted light a emitted towards the inner wall of the downward focusing cover 2 will directly illuminate the reflective surface 13a. The emitted light a will be divided into two parts. One part is reflected light c, which is reflected through the emitting surface 13a. The other part enters the interior of the annular focusing protrusion 13 and is refracted light b, which is emitted through the refractive surface 13b. Both the reflected light c and the refracted light b are emitted to the Fresnel lens 12. Thus, the emitted light a emitted by the lamp chip 4 can be utilized as much as possible through the reflection and refraction of the focusing element, maximizing the focusing effect and increasing the intensity of usable light.

[0032] To ensure that the light reflected and refracted by the multiple annular focusing protrusions 13 can uniformly illuminate the Fresnel lens 12, based on the point light source approximation theory, the horizontal angle of the reflecting surfaces 13a of the multiple annular focusing protrusions 13 is calculated using the commercial software TracePro. The horizontal angle of the reflecting surfaces 13a of the multiple annular focusing protrusions 13 is positively correlated with their distance from the lamp chip 4; that is, the farther the annular focusing protrusion 13 is from the lamp chip 4, the larger the horizontal angle of its reflecting surface 13a. When light is refracted, the vertical angle of the refracted ray b refracted by the refractive surface 13b of the multiple annular focusing protrusions 13 forms an angle with the horizontal plane of the Fresnel lens 12. A 90° angle allows the refracted light rays b refracted by multiple annular focusing protrusions 13 and the reflected light rays c reflected by the reflecting surface 13a to be uniformly directed onto the Fresnel lens 12. The light rays are uniformly focused onto the Fresnel lens 12, maximizing the focusing effect, increasing the light intensity, and improving the effective light intensity of the light source. This improves the light utilization rate while achieving the goal of using fewer LEDs, lower power consumption, and stronger light output. Compared with traditional methods, it saves energy consumption, improves the light output uniformity at 50% light intensity, and ensures that the light intensity of the lamps is consistent at any angle, improving the lamps' recognizability and enhancing their visibility.

[0033] The specific angle and shape of the annular focusing protrusion 13 were determined using the numerical solution and trial-and-error method most commonly used in freeform surface design. The initial discrete data of the light source, the focusing mask and the Fresnel lens 12 were obtained using the numerical solution method. Based on the secondary development platform of TracePro software, the reflector entity was directly generated in TracePro using the Scheme language.

[0034] A light-blocking component is disposed on the upper side of the light-emitting circular plate 1. The light-blocking component is a light-blocking cover 31, which is glued or threaded to the upper surface of the light-emitting circular plate 1. The light-blocking component prevents the light from escaping from the upper side of the light-emitting circular plate 1. Therefore, the light can only escaping from the side of the light-emitting circular plate 1 at an angle of 360°, and the light is emitted very evenly, thus achieving a 100% light emission uniformity. The outer circumference of the light-emitting circular plate 1 is an arc-shaped structure, which can improve the light intensity. The angle of the arc-shaped structure is 20°-35°, specifically matching the Fresnel lens 12.

[0035] Example 2

[0036] This embodiment provides a technical solution: a light source, which is an improvement on Embodiment 1, as described below. Figure 3The light-blocking component is an upper light-concentrating cover 32, which is fixed to the upper surface of the light-emitting circular plate 1. The upper light-concentrating cover 32 has a hemispherical structure and its structure is similar to that of the lower light-concentrating cover 2. The two are symmetrically arranged. The upper surface of the light-emitting circular plate 1 is also provided with a positioning part 101, which is adapted to the lower inner diameter of the upper light-concentrating cover 32 and is fixed by adhesive or threaded connection.

[0037] When the lamp chip 4 emits light, the emitted light will be reflected and refracted by the lower light-concentrating cover 2, so that the light can be reflected and refracted to the light-emitting disc 1 to the maximum extent. The light passing through the light-emitting disc 1 will enter the upper light-concentrating cover 32 and be reflected by the upper light-concentrating cover 32 to the light-emitting disc 1. The light can only be emitted and scattered through the side of the light-emitting disc 1, increasing the intensity of the light that can be scattered.

[0038] Example 3

[0039] This embodiment provides a technical solution: a navigation light, as shown in the following example. Figure 2 and Figure 4 The system includes a light source according to Embodiment 1 or Embodiment 2, a Fresnel lens cover 6, and a base 7. The Fresnel lens cover 6 is detachably mounted on the upper side of the base 7, and the light source is mounted on the inner side of the Fresnel lens cover 6. The Fresnel lens cover 6 can effectively disperse the light emitted by the light source over a long distance. A mounting rod 5 is fixed on the base 7, and the light source is mounted on the upper end of the mounting rod 5. The mounting rod 5 determines the mounting height of the light source. The mounting rod 5 and the light source are mounted with screws, and the wires of the light source are located inside the mounting rod 5.

[0040] An optical sensor 8 and a solar panel 9 are installed on the outer side of the base 7. A battery and a control circuit board are installed inside the base 7. The solar panel 9 charges the battery. The battery, control circuit board, optical sensor 8 and light source are electrically connected. The optical sensor 8 is triggered to turn on at night, so the light source will only operate at night. The solar panel 9 is arranged 360° around the outer side of the base 7. The solar panel 9 is tilted. There are two tilt angles for the solar panel 9: one is that the solar panel 9 and the base 7 are separate, and the tilt angle of the solar panel 9 is 30°-45°; the other is that the solar panel 9 and the base 7 are integrated, and the tilt angle of the solar panel 9 is 60°-65°. Since the power generation efficiency of the solar panel 9 is related to the angle at which the light enters the solar panel 9, that is, the larger the angle of entry, the higher the power generation efficiency. Therefore, in order to increase the power generation efficiency of the solar panel 9, its tilt angle needs to be adjusted according to the latitude and longitude of the region where it is used.

[0041] Alternatively, this navigation light can be connected to an external 220V AC power supply, but the optical sensor 8 and solar panel 9 need to be removed, and a transformer should be used to adjust the voltage to a suitable voltage for the light source. At the same time, a control switch should be added to control the light source to achieve the effect of starting and stopping the navigation light.

[0042] The above description is merely a preferred embodiment of the present invention and is illustrative rather than restrictive. Those skilled in the art will understand that many changes, modifications, and even equivalents can be made within the spirit and scope defined by the claims of the present invention, all of which will fall within the protection scope of the present invention.

Claims

1. A light source based on the principle of light concentration, characterized in that: The light source comprises a light-emitting round plate, a lower light collector, a lamp chip, a Fresnel lens, a light collector and a light blocker; the lamp chip is installed at the small-diameter end of the lower light collector, the light-emitting round plate is fixed at the large-diameter end of the lower light collector, the Fresnel lens is installed inside the lower light collector, the light collector is arranged on the inner wall between the Fresnel lens and the lamp chip, the light collector is used for collecting the light emitted by the lamp chip on the Fresnel lens, the light entering the Fresnel lens is uniformly transmitted and irradiated to the light-emitting round plate, the light blocker is arranged on the upper side of the light-emitting round plate, the light blocker avoids the light from being scattered from the upper side of the light-emitting round plate, and the light can only be scattered from the side of the light-emitting round plate.

2. A light source based on the principle of concentration as claimed in claim 1, characterized in that, The light blocker comprises a plurality of annular light collecting protrusions uniformly engraved on the inner wall of the lower light collector, and the annular light collecting protrusions are distributed along the axial direction of the lower light collector; the annular light collecting protrusion has a reflecting surface and a refracting surface, the horizontal included angle of the reflecting surface of the annular light collecting protrusion is positively correlated with the position of the lamp chip, when the emitted light irradiated to the reflecting surface, the reflected light is reflected by the reflecting surface, the refracted light is emitted from the refracting surface, the reflected light and the refracted light are irradiated to the Fresnel lens, and the vertical included angle of the refracted light is 90° with the horizontal plane of the Fresnel lens.

3. A light source based on the principle of concentration as claimed in claim 1, characterized in that, The outer circumferential surface of the light-emitting round plate is in an arc structure, and the angle of the arc structure is 20°-35°.

4. A light source based on the principle of concentration as claimed in claim 1, characterized in that, The light blocker is a light-blocking cover, and the light-blocking cover is fixed on the upper surface of the light-emitting round plate.

5. A light source based on the principle of concentration as claimed in claim 1, characterized in that, The light blocker is an upper light collector, the upper light collector is fixed on the upper surface of the light-emitting round plate, the upper light collector is in a semispherical shape, and the lower light collector is in a horn mouth structure.

6. A light source based on the principle of concentration as claimed in claim 4 or 5, characterized in that, The upper and lower surfaces of the light-emitting round plate are provided with circular positioning portions, and the two positioning portions are respectively matched with the light blocker and the lower light collector.

7. A light source based on the principle of concentration as claimed in claim 6, characterized in that, The light blocker and the lower light collector are respectively fixed with the corresponding positioning portions by screwing or bonding.

8. A beacon light, characterized by: The light source, the Fresnel lens cover and the base are provided, the Fresnel lens cover is installed on the upper side of the base, and the light source is installed on the inner side of the Fresnel lens cover.

9. A beacon light as claimed in claim 8, wherein the light source is a light emitting diode. The optical sensor and the solar panel are further provided, the optical sensor and the solar panel are installed on the base, the base is provided with a storage battery and a control circuit board, the solar panel charges the storage battery, and the storage battery, the control circuit board, the optical sensor and the light source are electrically connected.

10. A beacon light as claimed in claim 9, wherein the light source is a light emitting diode. The solar panel is arranged around the base at 360°, and the solar panel is arranged in an inclined manner, and the inclination angle of the solar panel is two kinds: one kind of solar panel is in a split type with the base, and the inclination angle of the solar panel is 30°-45°; the other kind of solar panel is in an integrated type with the base, and the inclination angle of the solar panel is 60°-65°.

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