CN201526904U - Improved lighting device - Google Patents

Abstract

The utility model discloses an improvement of lighting device, include a snoot, this snoot is a spherical body, it has one and goes into unthreaded hole and a unthreaded hole, should go into the unthreaded hole and be used for settling a luminescence unit, this luminescence unit is used for producing a light that jets out, the interior sphere of this snoot is a light source plane of reflection, this light that jets out is via a reflection or multiple reflection at this light source plane of reflection for output beam can be controlled in certain light angle of emitting, use and reach effectively to reduce light loss, so make whole luminous efficiency effectively promote.

Description

Improved lighting

technical field

The utility model relates to an improvement of an illuminating device, in particular to an illuminating device which is provided with a light exit hole in a spherical reflector so that the light can be guided to a proper direction so as to effectively improve the overall light exit efficiency.

Background technique

The design direction of general lighting devices is how to efficiently guide the irradiation direction of the light source and provide people with visual comfort. In order to achieve the purpose of high-efficiency irradiation (reducing light blocking), most lighting devices have a reflector In order to direct the light projected on the reflector to the irradiated place to reduce the light loss caused by the light irradiated on the non-predetermined lighting place, the lighting device has a light shield to reduce the glare of direct glare.

Please refer to FIG. 1 , which is a schematic diagram of a light concentrating structure in the prior art. The light guide structure includes a lampshade 80 in a trapezoidal shape, which is arranged above a luminous body 81 , wherein the lampshade 80 is close to the side of the luminous body 81 A light incident portion 811 is provided, and its opposite side is a light exit portion 813. When the illuminant 81 generates projected light, the projected light passes through the light incident portion 811 to be projected into the environment space, wherein the light incident portion 811 is a concave The mouth shape is used to refract and reflect the incident light to increase the intensity of the outgoing light.

Please refer to FIG. 2, which is a white LED lighting system disclosed in U.S. Patent No. 6,234,645. The lighting system has a lampshade 90 and at least three light-emitting diodes 91. Each light-emitting diode 91 emits visible light with a predetermined wavelength. A layer of fluorescent powder is coated on the inner wall of the lampshade 90 to diffuse the light of the LED 91 to achieve the purpose of uniform light.

However, the disadvantage of the prior art is that the lampshade only passively diffuses the light projected on it, and does not actively guide the light to an appropriate direction, so the utilization rate of the light is still low, so the lighting system is adjusting the brightness. There is no significant effect on some aspects and improving the utilization rate of light sources.

Utility model content

The purpose of this utility model is to provide an improved lighting device, which uses the principle of diffusion and reflection of light in the spherical body, so that the output beam can be controlled within a certain light angle and the light loss can be effectively reduced, so that the overall light output efficiency is effective. promote.

The lighting device improvement described in the utility model includes a condensing cover, which is a spherical body. The condensing cover has a light entrance hole and a light exit hole. The light entrance hole is used to place a light-emitting unit, and the light-emitting unit For generating an outgoing light, the inner spherical surface of the condenser cover is a light source reflection surface, the outgoing light is reflected once or multiple times on the light source reflection surface, and finally projected to the environment space through the light exit hole.

The improvement of the illuminating device described in the utility model can direct the light to an appropriate direction, thus effectively improving the brightness and the utilization rate of the light source.

Description of drawings

FIG. 1 is a schematic diagram of a light concentrating structure in the prior art.

Fig. 2 is a white LED lighting system in the prior art.

Fig. 3 is a three-dimensional schematic diagram of an improvement of the lighting device described in the present invention.

Fig. 4 is a schematic diagram of an improved light-emitting path of the lighting device of the present invention.

Fig. 5 is a schematic diagram of an embodiment of an improved light-emitting unit of the lighting device of the present invention.

Fig. 6 is an embodiment of an improved condensing cover of the illuminating device described in the present invention.

Detailed ways

The implementation of the present utility model will be described in more detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it after studying this specification.

Fig. 3 is a three-dimensional schematic diagram of an improvement of the lighting device described in the present invention. The utility model is an improvement of the relevant lighting device. The lighting device includes a condenser cover 1 and a light-emitting unit 3. The condenser cover 1 is a spherical body with a light source reflection surface 11 inside it. It also has a light entrance hole 13 and a light exit hole 15. The light entrance hole 13 is used to arrange the light emitting unit 3. The light emitting unit 3 is used to provide an incident light. The light emitting unit 3 includes at least one LED light emitting component. The size of the opening area of the hole 15 is determined according to the required light output angle and range, wherein the opening area of the light output hole 15 is at least less than one-tenth of the overall spherical area of the condenser cover 1 .

It should be noted that the condensing cover 1 in this embodiment can also be an ellipsoid or other spherical body with a curved surface, and the reflective surface of the light source of the condensing cover 1 can also be formed by a plurality of unit planes 111. into a spherical body, as shown in Figure 6.

Referring to FIG. 4 , it is a schematic diagram of an improved light-emitting path of the lighting device described in the present invention. When the light emitting unit 3 emits an incident light, the first part of the light D1 is directly projected into the environment space through the light exit hole 15, and the second part of the light D2 will be directly reflected by the light source reflecting surface 11 or after multiple reflections, and finally The ambient space is projected through the light exit hole 15, and the output beam can be controlled within a certain light exit angle and Effectively reduce light loss, so that the overall light extraction efficiency can be effectively improved.

Referring to FIG. 5 , it is a schematic diagram of an embodiment of an improved light-emitting unit of the lighting device of the present invention. The light-emitting unit 3 of the present invention can also use a plurality of LED light-emitting components that can produce different light colors, so as to achieve an output beam with a mixed light effect. As shown in Figure 5, the light-emitting unit 3 uses three LEDs The light-emitting components 31, 33 and 35 make the central LED light-emitting component 33 produce a white light and face the light outlet 15, and the LED light-emitting components 31 and 35 on both sides then produce a yellow light source. When the above-mentioned three light-emitting components emit light at the same time, the middle one The white light part L1 generated by the light emitting component 33 directly passes through the light exit hole 15, and then projected into the ambient space, and the yellow light part L2 generated by the light emitting components 31 and 35 on both sides is reflected once or multiple times by the reflective surface 11 of the light source. Finally, it will be mixed with the white light part L1 through the light exit hole 15 to generate a warm white output light beam part, which can reduce glare and make the color soft.

The above descriptions are only preferred embodiments for explaining the utility model, and are not intended to limit the utility model in any form. Changes should still be included in the scope of protection intended by the utility model.

Claims (6)

1. An improved lighting device for producing a concentrated light beam, characterized in that it comprises: A condensing cover, the condensing cover is a spherical body, which has a light entrance hole and a light exit hole, the light entrance hole is used to arrange a light-emitting unit, the light-emitting unit is used to provide an incident light, and the light-condensing The inner spherical surface of the cover is a light source reflection surface, and the incident light is reflected once or multiple times on the light source reflection surface, and finally projected to the environment space through the light exit hole. 2 . The improved lighting device according to claim 1 , wherein the light emitting unit comprises at least one LED light emitting component. 3 . 3. The improvement of the lighting device according to claim 1 or 2, wherein when the lighting unit includes a plurality of LED lighting components, and the LED lighting components include at least one LED lighting component capable of generating different light colors. 4. The improved lighting device according to claim 1, wherein the light source reflection surface is formed by a plurality of unit planes. 5. The improved lighting device according to claim 1, wherein an optical film is formed on the reflective surface of the light source. 6 . The improved lighting device according to claim 1 , wherein the opening area of the light exit hole is at least less than one-tenth of the overall spherical area of the condensing cover. 7 .

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