CN201954462U - Light source lens structure - Google Patents

Abstract

The utility model discloses light source lens structure, lens body contain at least: a light-gathering concave-transparent part, a light-diffusing convex-transparent part and an oblique wide-angle part; the concave part of the spotlight locates the bottom face of the body for an inner concave curved surface and forms a containing space, and the convex part of the astigmatism locates the outer surface of the body for an outer convex curved surface and corresponds to the concave part of the spotlight, and the other oblique wide angle part locates the periphery of the body for an oblique curved surface.

Description

Light source lens structure

technical field

The utility model relates to a lens, in particular to a lens suitable for light-emitting diodes to achieve light uniformity and increase the light output range of the light source lens structure.

Background technique

With the advancement of science and technology and the improvement of the concept of energy conservation and environmental protection, the global energy conservation issue is becoming more and more fermented and the governments of various countries will gradually ban incandescent bulbs in the future. The most ideal way is to use light-emitting diodes (LED) as light sources. (LED) has gradually become a trend in the lighting market due to its advantages of high efficiency, energy saving, and adjustable optical rotation. Its applications in street lights, car lights, outdoor lighting, and ambient lighting have become the focus of global attention.

However, at present, many light-emitting diodes (LEDs) are used as lighting devices, and the light source of the LED is a direct light. The peripheral area produces a lighting effect, and the generated light causes visual discomfort in the field of vision of the human eye or a glare phenomenon that causes vision loss.

Glare is one of the factors that affect the lighting quality of lamps. The definition of glare is that the peak light intensity of traditional lighting devices is distributed at about 60 degrees from the vertical direction, and it will directly hit the line of sight of the human eye to form direct glare, which makes people feel tired easily. to increase the risk.

Moreover, the distribution of traditional light sources on the ground is mostly symmetrical shapes such as circles or ellipses. If a large area of ground is to be illuminated, a large amount of light will be projected to places other than the ground. The illumination angle or light projection range of the light source is not properly designed and planned, resulting in great limitations in use. Even if the power of the LED is increased or the number of LEDs is increased, the insufficient illumination angle of the LED light source device and the Regarding the problem of glare, how to improve and increase the light-emitting angle and glare of LEDs has become a major issue.

The reason is that, in view of the lack of a narrow light-emitting angle in the use of the existing light-emitting diodes, the inventor of the present invention is based on his many years of manufacturing and design experience and knowledge in related fields, and through many ingenious ideas, aiming at the light-emitting diodes. The lens structure is newly developed and improved in order to exert its higher practical benefits.

Utility model content

The technical problem solved by the utility model is to provide a lens suitable for light-emitting diodes to increase the range of light output; to make the overall light source of the light-emitting unit pass through the lens structure to produce a uniform brightness effect and prevent glare.

The technical solution of the utility model is: a light source lens structure, the lens body at least includes: a light-gathering concave part, which is a concave curved surface arranged on the bottom end surface of the body, and forms an accommodating space; an astigmatism convex part, It is a convex curved surface set on the outer surface of the body, and corresponds to the light-gathering concave portion; the oblique wide-angle portion, which is an oblique section, is set on the peripheral end of the body; the bulb has a base and a lampshade, and the lampshade is set inside An LED module is connected with a control unit provided on the base: the light output of the LED module forms a light-exit critical surface in the lampshade, and the lampshade is a semi-elliptical shell-shaped structure, and the lampshade faces toward the light output The other side of the interface extends and tapers to form an extended curved surface, and the light output range of the bulb is enlarged by refracting the light source and projecting light through the extended curved surface.

Wherein, the lens body is provided with a light emitting unit.

The light emitting unit is a light emitting diode.

The lens body is a rectangular structure.

The lens body is an arc structure.

The lens body is configured as a plurality of lens bodies, and the plurality of lens bodies are connected to form a lens array.

The beneficial effects of the utility model are: the light source lens structure of the utility model, the lens body at least includes a light-gathering concave portion, an astigmatism convex portion and an oblique wide-angle portion.

Wherein, the light concentrating concave portion is an inner concave curved surface provided on the bottom surface of the main body, and forms an accommodating space, and the astigmatic convex portion is an outer convex curved surface, which is arranged on the outer surface of the main body, and corresponds to the light concentrating concave portion, In addition, the oblique wide-angle part is an oblique section set on the periphery of the body. When the utility model is actually applied, a light-emitting unit is arranged in the accommodating space. The curved surface refracts and transmits the light source, and then the astigmatism convex part transmits the collected part of the light source through the refraction and diffusion of the convex curved surface, and the oblique wide-angle part refracts part of the light source through the angle set by its oblique section. Diffusion, so as to make the light source uniform and increase its light range.

With this lighting fixture, the lens structure with multiple projection curvatures is combined with the light-emitting unit, and multiple encapsulation lens structures can be combined for application of light irradiation ranges at different angles.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a schematic diagram of the application of the first implementation of the present invention.

FIG. 3 is a schematic diagram of the light projection direction of the first embodiment of the present invention.

Fig. 4 is a light field distribution diagram of the first embodiment of the present invention.

Fig. 5 is another schematic structural view of the utility model.

Fig. 6 is a schematic diagram of the application structure of the second implementation of the present invention.

Fig. 7 is a perspective view of the application structure of the second embodiment of the present invention.

Explanation of figure numbers: lens body 10; concentrating concave portion 11; astigmatic convex portion 12; oblique wide-angle portion 13; bottom end surface 14; accommodating space 15; outer surface 16; light emitting unit 20; lens array 30.

Detailed ways

The light source lens structure of the present invention is mainly used to provide a lens suitable for light-emitting diodes to achieve light uniformity and increase the light output range. As shown in FIG. Astigmatism convex portion 12 and oblique wide-angle portion 13 .

Wherein, the light concentrating concave portion 11 is a concave curved surface arranged on the bottom end surface 14 of the main body, and forms an accommodating space 15, and the astigmatic convex portion 12 is a convex curved surface arranged on the outer surface 16 of the main body, and corresponds to the focusing The optical concave portion 11 and the oblique wide-angle portion 13 are provided on the peripheral edge of the main body as an oblique cut surface.

Accordingly, the utility model cooperates with the practical application of the light-emitting unit 20, as shown in Fig. 2 and Fig. 3, it is the first implementation and application, wherein it is especially intended to be applied to light-emitting diodes, and the lens body 10 utilizes the accommodating space 15 to set a light-emitting unit 20, The light of the light-emitting unit 20 gathers the light source through the light-gathering concave portion, and refracts and transmits the light through the concave curved surface, and the part of the light source is projected to the astigmatic convex portion 12 at an angle, through the convex curved surface Structural refraction is diffused, and part of the angle of the light source is projected to the oblique wide-angle part 13, and the angle structure of the oblique section is refracted to make the light source uniform and increase its light output range.

Furthermore, as shown in Figure 4, the utility model uses different light-reflecting structures for reflection to achieve a light field distribution; wherein the light-emitting unit 20 collects light through the light-gathering concave portion 11 and transmits multiple light rays, and the light-emitting unit 20 The transmitted light passes through the astigmatism convex portion 12 and the oblique wide-angle portion 13, respectively, and is projected on the convex curved surface and the oblique cut surface, and is refracted and released at different angles. The new type uses different positions and different structures to project the refracted light sources in different directions. The light source will not only project in a single straight line direction, but the refracted light will also interact, thus increasing the output of the lens. The refractive index of the light source is used to expand the light emitting range of the light source of the light-emitting unit, and at the same time, it can also condense the light source and improve the luminance and uniform light effect.

Furthermore, as shown in FIG. 1 , the lens body 10 is generally in the shape of a rectangular structure, and the light can be shifted at different angles to pass through, so that the light source is uniform and the projection angle is increased. Moreover, as shown in FIG. 5 , the lens body 10 is generally in the shape of a circular arc structure, and the light can also be transmitted through different angles, which can also achieve uniform light and increase the light projection angle of the light source.

Of course, as shown in Figure 6 and Figure 7, the utility model is the second implementation and application, the lens body 10 can be provided with a plurality of lens bodies 10, and the plurality of lens bodies 10 can be connected to form a lens array 30, which is applied to lighting fixtures, The lens structure with various projection curvatures is combined with the light-emitting unit, and multiple encapsulation lens structures can be combined, so as to provide greater illumination brightness for different angles of light irradiation range.

Claims (6)

1. light lens structure, its lens body comprises at least:

The recessed portion of optically focused, it is that an inner sunken face is located at the body bottom face, and is formed with an accommodation space;

The astigmatism convex part, it is that an outer convex surface is located at this external surface, and to should the recessed portion of optically focused;

Oblique wide-angle portion, it is that a scarf is located at body week acies;

Bulb has a pedestal and a lampshade, and a led module is set in this lampshade and links with the set control module of this pedestal, it is characterized in that:

Its bright dipping of this led module is formed with a bright dipping critical surface in this lampshade, and this lampshade is one to be half elliptic shell-like structure body, and other face of the past bright dipping critical surface of lampshade extends and convergent constitutes an extension curved surface, reflects through this extension curved surface light projector to enlarge the optical range that of this bulb by light source.

2. light lens structure as claimed in claim 1 is characterized in that this lens body is established a luminescence unit.

3. light lens structure as claimed in claim 2 is characterized in that, this luminescence unit is a light emitting diode.

4. light lens structure as claimed in claim 1 or 2 is characterized in that this lens body is a rectangular structure.

5. light lens structure as claimed in claim 1 or 2 is characterized in that, this lens body is an arc structure body.

6. light lens structure as claimed in claim 1 or 2 is characterized in that lens body is made as plural lens body, and should the plural number lens body link to constitute a lens array.

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