CN201487807U - Shade structure - Google Patents

Abstract

The utility model discloses a lampshade structure, the lampshade is a shell-like structure which is generally semi-elliptical, and in addition to having an opening for engaging with a light source group, is provided with a first refractive portion with a plurality of edges and corners in an inner section near the light source group, is provided with a first curved surface which is concave inwardly in an outer section near the light source group, and is provided with a second curved surface which is relatively convex outwardly and is connected to the first curved surface and extends to the top of the lampshade, and the thickness of the second curved surface decreases and decreases toward the top of the lampshade, and the first reflecting portion and the first curved surface improve the irradiation angle of the light source and increase the light projection range, and under the action of the second curved surface, it is avoided to directly look at the bright spot generated by the light source group.

Description

Shade structure

technical field

The utility model relates to a lampshade, and aims to provide a lampshade structure which is especially suitable for light-emitting diode bulbs to increase the irradiation range of the light-emitting diode bulbs.

Background technique

With the global energy-saving issues 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 (LEDs) as light sources. The advantage of tunable optical rotation has gradually become a trend in the lighting market, and its applications in street lights, car lights, outdoor lighting, and situational lighting have become the focus of global attention.

At present, there are light-emitting diode bulbs that use light-emitting diodes (LEDs) as light sources. They adopt the power supply type of ordinary incandescent bulbs and can be directly installed in traditional bulb sockets. The LED light source of the light source belongs to direct light, and the light source generated by the entire LED bulb can only be irradiated towards the area directly facing the LED, and cannot produce lighting effect on the peripheral area beside the LED.

Moreover, the lampshades used by conventional light emitting diode bulbs are mostly arc-shaped as shown in FIG. The power of the LEDs 10 or increasing the number of LEDs still cannot solve the problem of insufficient illumination angle of the LED light source device; especially, it is easy to look directly at the bright spots produced by the LEDs 20 from outside the lampshade 10, which makes people feel uncomfortable.

Utility model content

The technical problem to be solved by the utility model is to provide a lampshade structure especially suitable for LED light bulbs, so as to increase the light projection range of the LED light bulbs.

The technical solution of the present invention is: a lampshade structure, which is provided with an opening for joining with the light source group, and includes: a first refraction part, which is arranged on the inner section of the lampshade relatively close to the surrounding of the light source group, and consists of several protruding Constructed by corners; a first curved surface is provided on the outer section of the lampshade relatively close to the periphery of the light source group, and is a curved surface facing inwardly concave.

Wherein, the lampshade is a semi-elliptical shell-like structure. There is another second curved surface connected between the first curved surface and the top of the lampshade. The second curved surface is a curved surface protruding outward, and its thickness gradually decreases toward the top of the lampshade. A second refraction part is arranged on the inner side of the top of the lampshade, and the second refraction part is composed of several protruding bumps. The shade is a polycarbonate shade. The shade is an acrylic resin shade. The lampshade is a polyvinyl chloride lampshade.

The beneficial effects of the utility model are:

1. The lampshade of the present utility model is a semi-elliptical shell-like structure. In addition to having an opening for connecting with the light source group, it is also provided with a number of angular first refraction in the inner section near the light source group. The outer section near the light source group is provided with a first curved surface facing inwardly concave, and a second curved surface relatively protruding outward is connected between the first curved surface and the top of the lampshade, and the second curved surface The thickness decreases and decreases towards the top of the shade. When in use, the light around the light source group can be refracted towards the first curved surface by the first reflector, and under the action of the first curved surface, the light can intersect at one point after exiting the lampshade, so that part of the light can be irradiated directly to the outside of the lampshade. And part of the light is scattered towards the outside of the lampshade through the reflection of the first curved surface, so as to improve the irradiation angle of the light source and increase the light projection range.

2. Under the action of the second curved surface, the bright spots produced by looking directly at the light source group from the outside of the lampshade can be avoided.

3. There are several convex second refraction parts on the inner section of the top of the lampshade. The diffusion effect generated by the second refraction parts will cause an atomized surface, so that the overall light source group can produce a uniform brightness performance effect, and can prevent glare.

Description of drawings

Fig. 1 is a structural sectional view of a conventional lampshade;

Fig. 2 is a sectional view of the lampshade structure of the present utility model;

Fig. 3 is a schematic diagram of the irradiation direction of light sources around the lampshade of the present invention;

Fig. 4 is the light projection angle distribution diagram of the light source group in the utility model;

Fig. 5 is a schematic diagram of the irradiation direction of the light source at the top of the lampshade of the present invention.

【Description of figure number】

10 lampshade 20 light-emitting diodes

30 lampshades 31 openings

32 First reflection part 321 Angle

33 The first curved surface 34 The second curved surface

35 second reflection part 351 bump

40 light source groups 41 light emitting diodes

Detailed ways

The lampshade of the present utility model is mainly used as the optical mechanism of the light-emitting diode bulb, so as to increase the light irradiation range of the light-emitting diode bulb; as shown in Figure 2, the lampshade 30 can be made of polycarbonate (PC), acrylic resin or polychlorinated It is made of materials such as vinyl (PVC), except that it is provided with an opening 31 for joining with the light source group 40 of the light-emitting diode bulb; it also includes the following structure: a first refraction portion 32, which is located on the lampshade 30 relatively close to the light source group The inner section around 40 is formed by several protruding corners 311 .

A first curved surface 33 is disposed on the outer section of the lampshade 30 relatively close to the surrounding of the light source group 40 , and is a curved surface facing inwardly concave.

A second curved surface 34 , connected between the first curved surface 33 and the top of the lampshade 30 , is a curved surface protruding outward, and its thickness gradually decreases toward the top of the lampshade 30 . In practice, the lampshade 30 of the present utility model is preferably a semi-elliptical shell structure, and a second refraction part 35 is arranged on the inner side of its top, and the second refraction part 35 consists of several protruding convex Consists of 351 grains.

As shown in FIGS. 2 and 3 , under the action of the lampshade 30 of the present invention, the light from the side of the light source group 40 can be refracted toward the first curved surface 33 through the first reflector 32 , and be refracted on the first curved surface 33 . Under the action of the light rays exiting the lampshade 30, they intersect at one point, so that part of the light is directly irradiated toward the outside of the lampshade 30, and part of the light is scattered toward the outside of the lampshade through the reflection of the first curved surface 33, so that the light source group 40 The generated light source can cover an irradiation range of 300° (as shown in FIG. 4 ), thereby achieving the purpose of improving the irradiation angle of the light source and increasing the light projection range.

And under the effect of the second curved surface 34, the bright spots produced by the light-emitting diodes 41 of the light source group 40 outside the lampshade 30 can be avoided, so as to avoid discomfort in use; especially, as shown in FIG. 5 , in the second refraction portion Under the action of 35° refraction, the passing light can be diffused and fogged, so that the overall light source group can produce a uniform brightness performance effect and prevent glare.

Claims (7)

1. A lampshade structure, characterized in that it is provided with an opening for engaging with the light source group, and includes: a first refraction part, located on the inner section of the lampshade relatively close to the periphery of the light source group, and composed of several protruding corners; A first curved surface is provided on the outer section of the lampshade relatively close to the periphery of the light source group, and is a curved surface facing inwardly concave. 2. The lampshade structure according to claim 1, wherein the lampshade is a semi-elliptical shell-shaped structure. 3. The lampshade structure according to claim 1 or 2, characterized in that there is another second curved surface connected between the first curved surface and the top of the lampshade, the second curved surface is a curved surface protruding outward, its thickness and decreases towards the top of the shade. 4. The lampshade structure according to claim 1 or 2, wherein a second refraction portion is provided on the inner side of the top of the lampshade, and the second refraction portion is composed of a plurality of protruding bumps. 5. The lampshade structure according to claim 1 or 2, characterized in that the lampshade is a polycarbonate lampshade. 6. The lampshade structure according to claim 1 or 2, wherein the lampshade is an acrylic resin lampshade. 7. The lampshade structure according to claim 1 or 2, characterized in that the lampshade is a polyvinyl chloride lampshade.

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