WO2009056000A1

WO2009056000A1 - Combined lens and light fixture using the same

Info

Publication number: WO2009056000A1
Application number: PCT/CN2008/000907
Authority: WO
Inventors: Dantian Tang
Original assignee: Beijing Ssherr Professional Lighting Co. Ltd
Priority date: 2007-11-02
Filing date: 2008-05-07
Publication date: 2009-05-07
Also published as: CN101424780A

Abstract

A combined lens comprises a plurality of convex lenses (41, 42, 43, 44, 45) located at the same plane, each of the convex lenses (41, 42, 43, 44, 45) has a respective focal point, the focal points distribute in at least one plane parallel to the combined lens. A light fixture using the combined lens, comprises the combined lens, a plurality of point illuminators, a power input device, and a housing.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the field of lighting fixtures, and in particular to a combined lens and a lamp using the same. BACKGROUND OF THE INVENTION In modern lighting, particularly in stage lighting, a variety of well-defined spots are often required to illuminate specific locations in the stage. However, for example, the use of a high-power incandescent light source (or fluorescent lamp) is not only environmentally friendly, but also because most of the electrical energy is consumed in heat and does not meet the energy saving requirements.

With the gradual maturity of light-emitting diode (LED) technology, its high energy-saving, long-life, multi-color, small size, and environmentally friendly features are increasingly respected. It is therefore widely used in various fields such as indication, display, decoration, backlight, general lighting and urban night scenes. As far as energy saving is concerned, studies have shown that the power conversion efficiency of LEDs is much higher than that of incandescent and fluorescent lamps currently used, and the power of 3 watts is equivalent to 60 watts of incandescent lamps. However, the current mature single LED chip has a power of a few watts to a few watts and cannot be used alone for stage lighting. If only a few light-emitting diodes are simply used in combination, the intensity of the light formed is not high and a good superimposed spot cannot be formed. SUMMARY OF THE INVENTION In view of the above problems in the prior art, an object of the present invention is to provide a light intensity of a single point type illuminator, and to superimpose light of a plurality of point illuminants, thereby projecting A combined lens of a predetermined shape of a spot and a luminaire using the same.

Another object of the present invention is to provide a luminaire using a combined lens that can adjust the area of the spot projected by the luminaire. The invention combines the use of a single point illuminant with a corresponding lenticular lens to increase the intensity of the light by 3-5 times after passing the illuminant through the point illuminator.

The invention combines a plurality of point illuminators with corresponding plurality of lenticular lens lenses to superimpose the lenticular lens-enhanced light emitted by the plurality of point illuminants into a stronger spot.

The technical solution of the present invention includes:

A combined lens comprising:

a plurality of convex lens lenses, wherein the plurality of convex lens lenses are located on the same plane, each having independent focal points, and the focus is distributed on at least one plane parallel to the combined lens.

The centers of the plurality of convex lens lenses described above may be substantially evenly distributed over one circumference. The center of one of the plurality of convex lens lenses may be located substantially at the center of a circle, and the centers of the remaining convex lens lenses may be substantially uniformly distributed on the circumference of the circle.

The plurality of lenticular lens lenses may be formed by tiling a plurality of lenses after splicing, or by casting once using a mold.

The plurality of convex lens lenses may be a Fresnel lens.

A luminaire using a combined lens, including:

a combined lens comprising a plurality of convex lens lenses, wherein the plurality of convex lens lenses are located on the same plane, each having independent focal points, wherein the focus is distributed on at least one plane parallel to the combined lens;

a plurality of dot illuminators having the same number as the lenticular lens of the combined lens; each of the dot illuminators is substantially located in a line connecting the focus and the center point of the corresponding lens of the plurality of lenticular lenses And the plurality of dot illuminators are located on one side of the plurality of lenticular lenses of the combined lens;

Power input device;

The housing is formed by coating the combined lens and the plurality of dot illuminators.

The luminaire using the combined lens of the present invention may further include position adjusting means for allowing the distance between the plurality of point illuminators and the combined lens to be relatively adjusted. The above power input device includes a power transformer and a rectifying device.

The plurality of dot type illuminators are an incandescent light source, a gas discharge type light source, or a light emitting diode type light source.

Compared with the existing lamps, the lamp of the invention has the following advantages: the light intensity of the single point source can be increased by 3-5 times, and the spots of the light emitted by the plurality of point sources are superimposed, further Increase the brightness of the spot. Under the premise of not increasing the power of the light source, the intensity of the light line is increased, and energy conservation can be achieved. The invention combines a plurality of low-power point light sources to create a new idea, and can use a novel light-emitting diode light source to exert energy saving, environmental protection, long life, multiple light colors, small volume, etc. Many advantages. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing the principle of a combined lens of the present invention and a lamp using the same;

2A and 2B are perspective and plan views of a plurality of convex lens lenses of a combined lens according to a preferred embodiment of the present invention;

3A and 3B are schematic views showing the arrangement of a plurality of dot illuminators using a combined lens according to a preferred embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be further described in detail with reference to the accompanying drawings. The above and other objects, features and advantages of the present invention will become apparent to those skilled in

Referring to Figure 1, Figure 1 is a schematic view of the combined lens of the present invention and a lamp using the same. The luminaire using the combined lens of the present invention mainly comprises: a combined lens 1 comprising a plurality of convex lens lenses 11, 12, 13 in the same plane; a multi-point illumination assembly 2 comprising a plurality of point illuminants 21, 22 And a fixing device 24 for fixing the plurality of dot illuminants 21, 22, and 23. The plurality of dot type illuminators 21, 22, and 23 are respectively located on straight lines connecting the respective focal points and center points of the plurality of lenticular lenses 11, 12, and 13.

Light emitted from a plurality of dot illuminants 21, 22, 23 passes through a plurality of convex lens lenses, respectively After 11, 12, and 13, the intensity of the light is enhanced by the convergence of the convex lens. When the reinforced light is projected on the plane, a large amount of overlapping spots are formed, and 3 in Fig. 1 indicates the overlapping area of the spot.

The plurality of dot type illuminators 21, 22, and 23 may be light sources that are directed to emit light, or may be light sources that are non-directionally projected (spherical divergent light). If a non-directional light source is used, it is preferred to use a concentrating reflector to collect the light from the source and focus it on the corresponding lens lens. The use of a concentrating reflector can increase the intensity of light in a desired direction for a single non-directionally projected source.

2A and 2B are perspective and plan views of a plurality of convex lens lenses of a combined lens according to a preferred embodiment of the present invention. As shown, a plurality of lenticular lenses 41, 42, 43, 44, 45 are combined into a single circle, i.e., the combined lens of the present invention. One of the plurality of lenticular lenses 41, 42, 43, 44, 45 is located substantially at the center of the circle 80, and the remaining few are substantially equally spaced on the circumference of the circle 80. Similar to circle 80, the circle indicated by the dashed line in the drawing is an indication made by the applicant to illustrate the features of the present invention, and the presence of this circumference is not required in the product. The number of the plurality of convex lens lenses is not limited to five, and the number of convex lens lenses on the circumference 80 may be three or five or the other. In the present embodiment, the number of the plurality of convex lens lenses is preferably 4 to 6, and the 4 to 6 are preferable in terms of structure and cost, and the present invention is not limited thereto. Of course, the arrangement of the plurality of convex lens lenses is not limited to that shown in the drawings, and for example, the lenses of the plurality of convex lenses may be substantially uniformly distributed on the circumference of one circle.

3A and 3B are schematic views showing the arrangement of a plurality of dot illuminators using a combined lens according to a preferred embodiment of the present invention. The arrangement of the plurality of dot type illuminators shown in Figs. 3A and 3B corresponds to the combined lens shown in Figs. 2A and 2B.

As shown in Fig. 3A, a plurality of dot illuminators 51, 52, 53, 54, 55 and a fixing device 241 for fixing the plurality of dot illuminators 51, 52, 53, 54, 55 constitute a multi-point illuminating assembly. The arrangement of the plurality of dot illuminators 51, 52, 53, 54, 55 is the same as that of the plurality of lenticular lenses 41, 42, 43, 44, 45 shown in FIGS. 2A and 2B. That is, one of them is substantially at the center of the circle 90, and the remaining four are substantially evenly distributed over the circumference of the circle 90. After the two are assembled into a luminaire, a plurality of point illuminators 51, 52, 53, 54, 55 The center light rays are in the same line as the focus and center points of the plurality of convex lens lenses 41, 42, 43, 44, 45, respectively.

Fig. 3B is similar to Fig. 3A except that the shape of the fixture 242 is square. It should be understood that the shape of the fixture in the luminaire of the present invention is not limited to a circular or square shape, and may be various shapes that can be considered by those skilled in the art as long as it can fix the plurality of point illuminators of the present invention. However, the present invention is not limited to this.

The illuminating device of the present invention can be realized by assembling the combined lens and the multi-point illuminating assembly disclosed by the present invention through a casing, adding a power input device or a power connection port connected to a plurality of point illuminators, and the illuminating device of the present invention can be Various shapes and structures that can be considered by those skilled in the art will not be described herein.

The present invention has been clearly described by the above embodiments and the accompanying drawings, and those skilled in the art can make various corresponding changes and modifications in accordance with the present invention without departing from the spirit and scope of the invention. However, such corresponding changes and modifications are intended to fall within the scope of the appended claims.

Claims

Claim

A combined lens comprising: a plurality of convex lens lenses, wherein the plurality of convex lens lenses are located in the same plane, each having independent focal points, wherein the focus is distributed on at least one plane parallel to the combined lens .

The combination lens according to claim 1, wherein a center of said plurality of convex lens lenses is substantially uniformly distributed on one circumference.

3. The combination lens according to claim 1, wherein a center of one of the plurality of convex lens lenses is substantially located on a center of a circle, and centers of the remaining convex lens lenses are substantially uniformly distributed on a circumference of the circle on.

The combination lens according to claim 1, 2 or 3, wherein the plurality of convex lens lenses are formed by tiling and bonding a plurality of lenses, or one-time casting using a mold.

The combination lens according to claim 1, 2 or 3, wherein the plurality of convex lens lenses are Fresnel lenses.

6. A luminaire using a combined lens, comprising:

Power input device;

7. The luminaire of claim 6, further comprising position adjustment means for allowing the distance between the plurality of point illuminators and the combined lens to be relatively adjusted.

8. A luminaire as claimed in claim 6 or claim 7 wherein said power input means comprises a power transformer and a rectifying means.

9. A luminaire as claimed in claim 6 or claim 7 wherein the plurality of spot illuminators are incandescent light sources, gas discharge light sources, or light emitting diode based light sources.