CN100559061C - An asymmetric wide-angle lighting device - Google Patents

Abstract

The present invention is an asymmetric wide-angle lighting device for being arranged in a lamp so that the light from the light source can be projected through the asymmetric wide-angle lighting device; the improvement lies in that the asymmetric wide-angle lighting device comprises an optical lens, the optical lens has a body, the body has a light-collecting surface and a cylindrical lens array, wherein the cylindrical lens array is configured in a wave shape so that the light from the light source can be sequentially projected through the light-collecting surface and a cylindrical lens array to form a collimated and flat illumination.

Description

An asymmetric wide-angle lighting device

technical field

The invention relates to an asymmetric wide-angle lighting device, especially an optical lens with a light-collecting surface and a cylindrical lens array, so that the light from the light source can be formed sequentially through the light-collecting surface and a cylindrical lens array. The collimated and flat illuminance is projected to avoid glare of the irradiated person and improve the lighting range, and its composition structure is simple and low in cost. It is suitable for lighting equipment such as car lights, fog lights, and flashlights.

Background technique

When driving or walking with passers-by, it is a common lighting method to provide appropriate light through lighting devices such as car lights and flashlights. With the advancement of technology, various lamps have different lighting brightness and lighting range. There are constant improvements and designs.

As shown in Figure 1 and Figure 2, in the lighting structure of the existing lamps, in order to allow the light to be projected out in a concentrated manner, a light-collecting lens B is provided at the front end of the light-emitting source A, and the front end of the light-collecting lens B is set to A convex curved mirror surface B1 allows light to pass through the surface of the curved mirror B1 to achieve the purpose and effect of concentrated illumination distribution.

Although the above-mentioned structure can improve the illumination brightness, after the refraction by the curved mirror surface B1, the illumination range is not enough, and the light angle is too large, if the illuminated party is someone else, it is easy to cause the illuminated person to be dazzled. The uncomfortable feeling of light, if the person being illuminated is an oncoming vehicle driving on the road, there will be more unexpected problems.

In view of this, the inventors of the present invention continue to improve research and development, and finally develop an asymmetric wide-angle lighting device to solve the problems of the prior art.

Contents of the invention

The main purpose of the present invention is to provide an asymmetrical wide-angle lighting device capable of forming collimated and flat illumination projection.

In order to achieve the above-mentioned purpose, the present invention provides an asymmetric wide-angle lighting device for setting in a lamp, so that the light from the light source can be projected through the asymmetric wide-angle lighting device; the improvement lies in the above-mentioned asymmetric The symmetrical wide-angle lighting device includes an optical lens, and the optical lens has a body, and the body has a light-collecting surface and a cylindrical lens array, wherein the cylindrical lens array is set in a wave shape.

In this way, the light from the light source can be projected out in a collimated and flat illuminance through the light collecting surface and a lenticular lens array in sequence.

For the convenience of having a deeper understanding of the present invention, it is hereby described in detail by an embodiment:

Description of drawings

Fig. 1 is the structural representation of existing lamps and lanterns;

Fig. 2 is the illuminance diagram when the lamp in Fig. 1 is illuminated;

Fig. 3 is the perspective view of the present invention;

Fig. 4 is the sectional schematic diagram of Y-Z plane of the present invention;

FIG. 5 is a schematic diagram of ray tracing in FIG. 4;

Fig. 6 is the sectional schematic view of X-Z plane of the present invention;

FIG. 7 is a schematic diagram of ray tracing in FIG. 5;

Fig. 8 is an illuminance diagram of the present invention when light passes through an optical lens.

Explanation of reference signs: 1-optical lens; 11-body; 111-light-collecting surface; 112-cylindrical lens array; 2-light-emitting source; A-light-emitting source; B-light-collecting lens; B1-curved lens.

Detailed ways

Please refer to FIG. 3 , which shows an embodiment of the asymmetric wide-angle lighting device of the present invention, which includes an optical lens 1 for setting in a lamp, so that light from a light source 2 can be projected through the optical lens 1 go out.

The optical lens 1 is produced by injection molding or molding, and the optical lens 1 has a body 11, and the body 11 has a light collecting surface 111 and a cylindrical lens array 112, wherein the optical lens The rear end of the body 11 of the optical lens 1 is set as an outwardly convex arc-shaped surface to form the aforementioned light-collecting surface 111, and the front end of the body 11 of the optical lens 1 is set in a wave shape to form the aforementioned cylindrical lens array 112.

Therefore, when the present invention is implemented, after the optical lens 1 is arranged at the front end of the light emitting source 2 (such as an LED module), when the light emitting source 2 is started, it can be seen in the Y-Z plane sectional view as shown in FIG. 4 . The light can form a collimated illuminance through the collecting surface 111 (as shown in FIG. 5 ), and it can be seen in the cross-sectional view of the X-Z plane in FIG. 6 that the light can form a flat illuminance through the cylindrical lens array 112 (as shown in FIG. 7 shown).

Thus, as shown in FIG. 8 , through the design of the optical lens 1 of the present invention, the light from the light source 2 can be projected out in a collimated and flat illuminance through the light-collecting surface 111 and a lenticular lens array 112 in sequence.

Therefore, the present invention has following advantage:

The optical lens provided by the present invention can effectively avoid glare of the subject and increase the illumination range. It has a simple structure and is easy to manufacture, and only one optical lens can achieve the aforementioned effect, so the production cost can be effectively reduced.

The present invention uses an asymmetrical lighting method, so that the light from the light source can present a flat illuminance distribution after passing through the optical lens of the present invention, so as to avoid glare of the illuminated person and improve the lighting range.

The above descriptions are only preferred embodiments of the present invention, and are only illustrative rather than restrictive to the present invention. Those skilled in the art understand that many changes, modifications, and even equivalents can be made within the spirit and scope defined by the claims of the present invention, but all will fall within the protection scope of the present invention.

Claims (5)

1, a kind of asymmetric wide-angle illuminating apparatus for being arranged in the light fixture, can throw away the light of light emitting source by described asymmetric wide-angle illuminating apparatus; It is characterized in that:

Described asymmetric wide-angle illuminating apparatus comprises: an optical mirror slip, described optical mirror slip has a body, described body has a light harvesting face and a lens pillar array, wherein said lens pillar array be made as wavy.

2, asymmetric wide-angle illuminating apparatus according to claim 1 is characterized in that: described light emitting source is a led module.

3, asymmetric wide-angle illuminating apparatus according to claim 1 is characterized in that: the body rear end of described optical mirror slip is to be made as an evagination arcwall face, to form aforesaid light harvesting face.

4, asymmetric wide-angle illuminating apparatus according to claim 1 is characterized in that: the light of described light emitting source is the illumination that forms collimation via the light harvesting face, and forms the illumination of flat via the lens pillar array.

5, asymmetric wide-angle illuminating apparatus according to claim 1 is characterized in that: described optical mirror slip is that ejection formation or mould model make.

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