CN2777363Y

CN2777363Y - Multi-paraboloid parallel light ray type LED lamp

Info

Publication number: CN2777363Y
Application number: CNU2005200816321U
Authority: CN
Inventors: 苏润泽
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-03-22
Filing date: 2005-03-22
Publication date: 2006-05-03
Anticipated expiration: 2015-03-22

Abstract

The utility model relates to an LED multi-paraboloid parallel light lamp fitting, which belongs to the field of a lighting device and comprises a light emitting unit which is composed of a light emitting diode and a reflecting mirror. The utility model is characterized in that at least two groups of light emitting units are arranged in the parallel light lamp fitting, and the reflecting mirror of each of groups of light emitting units is a part of a parabola curved surface which is formed in the mode that a parabola of y< 2 > equal to kx rotates along an X axis. At least two groups of reflecting mirrors are combined to form an approximately bowl-shaped reflecting mirror group, and a light emitting surface of a light emitting core of every light emitting diode faces to the corresponding reflecting mirror and is arranged. Because a plurality of parabolic reflecting surfaces are combined, the structural characteristic of the approximately bowl-shaped reflecting mirror group is formed to make parallel light ray which is emitted by every light emitting unit form a light beam. So, the utility model reaches the purposes that an invention which has the advantages of better lighting effect, higher illuminance and more long-distance lighting is provided, and can be widely used for the fields of various long-distance lighting lamp fittings or signal lamp devices, etc.

Description

LED (light-emitting diode) multi-paraboloid parallel light lamp

Technical Field

The utility model belongs to the lighting device field especially relates to an adopt semiconductor device as lighting device of light source.

Background

The LED is an english Light Emitting Diode (LED) abbreviation, and is a novel high-efficiency solid Light source capable of Emitting Light with weak electric energy.

The first commercial LED in the middle of the 20 th century is on the market, and over the course of more than 50 years, the performance is continuously improved, the manufacturing cost is continuously reduced, and remarkable and long-term progress is made. LEDs are widely used because of their inherent advantages of high efficiency, long lifetime, low loss, vibration resistance, fast response speed, small size, etc. With the progress of manufacturing technology, the luminous efficiency and luminous intensity of a single LED are continuously improved, and with the improvement of LED performance and the enhancement of power, a high-brightness lighting fixture made of a single LED is possible, and the application of LED products in the lighting field becomes a new product with great influence.

Because of the structural characteristics of the product, the light emitting surface of the LED is a hemispherical surface, and the emitted light is a hemispherical scattered light, so that the scattered light can be irradiated forward as much as possible to achieve a stronger illumination intensity (for the same irradiation distance) or a longer irradiation distance (for the same light emission intensity), and a great deal of research and trial is made by technicians.

In the Chinese patent application with publication number CN 2274280Y, 2.11.1998, a Hongkong aviation energy-saving brightening marker light is disclosed, which is characterized in that a convex lens is arranged in front of an ultra-high brightness light-emitting diode, the distance between the convex lens and the ultra-high brightness light-emitting diode is adjusted to enable the ultra-high brightness light-emitting diode to be arranged at the focus of the convex lens, and the ultra-high brightness light-emitting diode emits scattered light which is emitted as parallel light through the convex lens from the focus, so that the brightness is enhanced. Because the technical scheme can only convert one part of hemispherical scattered light (namely, forward light) emitted by the light emitting surface of the LED into parallel light, the conversion rate of the parallel light is low, and the arrangement of the convex lens can cause the structure of the lamp to be complicated.

The Chinese patent with publication number CN 2570601Y, 9/3/2003, discloses a high-brightness parallel light diode lighting device, which comprises a packaging body, an LED light-emitting core and a reflector, wherein the LED light-emitting core is positioned at the focus of a ball head at the front end, and the reflector is in a bowl shape and at least comprises a parabola. Because the special high-brightness LED luminous core is selected and packaged by adopting the shallow insertion mode, the luminous point position of the luminous core is positioned on the focus of the front end ball head, so that the light emitted by the LED head is parallel light or is approximate to the parallel light, and the light source with the LED capable of emitting the parallel light is matched with a scientific parabolic bowl-shaped reflector, so that the device can obtain the high-brightness parallel light or is approximate to the parallel light. However, because it uses a single led as the light source, the illumination provided by the lamp is still difficult to meet the actual requirement.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a LED multi-paraboloid parallel light lamp which can form stronger parallel light beams, can provide better lighting effect and can achieve the purpose of remote lighting is provided.

The technical scheme of the utility model is that: the LED multi-paraboloid parallel light lamp comprises a light emitting unit consisting of an LED and a reflector, wherein the reflector is a parabola y²Kx rotates along the x-axis to form a parabolic curved reflector, and the LED is positioned on the focal point of the reflector, and is characterized in that: at least two groups of the light-emitting units are arranged in the parallel light lamp; wherein the reflector of each group of light-emitting units is formed by a parabola y²Kx is a portion of a parabolic curve formed by rotation along the x-axis; the at least two groups of reflectors are combined to form an approximate bowl-shaped reflector group; the luminous surface of each LED luminous core is arranged towards the corresponding reflector.

In particular, the above-mentioned reflector is composed of a parabola y²A partial parabolic curve formed by rotating kx by less than or equal to 180 degrees along the x-axis.

The symmetry axis of the luminous hemispherical contour line of the LED luminous core is arranged towards the parabolic curved surface of the corresponding reflector.

Compared with the prior art, the utility model has the advantages that:

1. because the light-emitting surface of the LED light-emitting core is arranged towards the parabolic curved surface of the reflector, most or all of the light emitted by the LED light-emitting core can be refracted by the reflector and projected to the front, and the parallelism of the emitted light is high;

2. combining a plurality of parabolic reflecting surfaces to form a reflector group similar to a bowl; the parallel light rays emitted by each light-emitting unit can form a light beam, and the purposes of providing better illumination effect, higher illumination and achieving illumination at longer distance are achieved.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic structural diagram of an embodiment of the present invention;

fig. 3 is a schematic structural diagram of another embodiment of the present invention.

In the figure, 1-1 to 1-4 are reflectors, 2-1 to 2-4 are LED light-emitting diodes, 3-1 and 3-2 are symmetry axes of the outline of the light-emitting hemisphere of the LED light-emitting diodes, and 5 is light 5 emitted by the LED light-emitting diodes.

Detailed Description

In fig. 1, in the parallel light fixture of the present invention, at least two sets of light emitting units are provided, each of which is composed of an LED 2-1, 2-2 and a reflector 1-1, 1-2. The reflector of each group of light-emitting units is formed by a parabola y²A portion of a parabolic curve formed by rotation of kx along the x-axis (shown as a parabola y in the figure)²Formed by rotation of kx by 180 ° along the x-axisA semiparabolic curved surface) that are combined to form a reflector group that approximates a bowl; the luminous surface of each LED luminous core is arranged towards the corresponding reflector.

Meanwhile, each LED is positioned on the focus of the corresponding reflector.

Because the light-emitting surface of the LED light-emitting core faces the parabolic curved surface of the reflector, most or all of the light rays 5 emitted by the LED light-emitting core can be refracted by the reflector and projected to the front.

In fig. 2, the axis of symmetry 3-1 or 3-1 of the semi-spherical contour line of the LED core in the light-emitting unit is set toward the parabolic curved surface of the reflector 1-1 or 1-2, and the rest is the same as fig. 1.

By properly adjusting the position of the LED and the direction of the symmetry axis 3 of the luminous hemispherical contour line of the LED, the size of a light spot projected to a certain distance can be changed.

In fig. 3, in order to provide higher illumination intensity, the present invention can be composed of 2, 4, 6 or more groups of light emitting units, and the reflector of each group of light emitting units is composed of a parabola y²The multiple groups of reflectors are combined to form a reflector group which is approximately bowl-shaped.

The rest is the same as fig. 1 or fig. 2.

Because of the parabolic curved surface setting of the light emitting face orientation speculum of LED luminous core, the light that it sent can most or all be thrown to the place ahead by the speculum refraction, and the depth of parallelism of sending light is higher for this illumination lamps and lanterns product compares with other products, and its luminous efficacy is higher, and the luminous intensity decay on the same distance reduces, the required power of luminous source is littleer under the same illumination intensity.

Because the utility model discloses a with the combination of a plurality of parabolic reflecting surfaces, form the structural feature of the speculum group of an approximate bowl form for the parallel light that each luminescence unit sent can form a light beam, has reached the invention purpose that provides better illuminating effect, higher illuminance and reach the illumination of farther distance.

The utility model discloses can extensively be used for fields such as various remote illumination lamps and lanterns or signal lamp device.

Claims

1. A LED multi-paraboloid parallel light lamp comprises a light emitting unit consisting of an LED and a reflector, wherein the reflector is a parabola y²Kx rotates along the x-axis to form a parabolic curved reflector, and the LED is positioned on the focal point of the reflector, and is characterized in that:

at least two groups of the light-emitting units are arranged in the parallel light lamp; wherein,

the reflector of each group of light-emitting units is formed by a parabola y²Kx is a portion of a parabolic curve formed by rotation along the x-axis;

the at least two groups of reflectors are combined to form an approximate bowl-shaped reflector group;

the luminous surface of each LED luminous core is arranged towards the corresponding reflector.

2. The LED multi-paraboloid parallel light fixture of claim 1 wherein said reflector is parabolic y²A semiparabolic surface formed by rotation of kx along the x-axis and taking positive or negative portions of y.

3. The LED multi-paraboloid parallel light fixture of claim 1 wherein said reflector is parabolic y²A partial parabolic curve formed by rotating kx by less than or equal to 180 degrees along the x-axis.

4. The LED multi-paraboloid parallel-light fixture of claim 1 wherein said axis of symmetry of said light emitting hemispherical contour of said LED light emitting core is oriented toward said parabolic curved surface of said reflector.