CN103912832A - Automobile lamp - Google Patents

Abstract

The invention relates to an automobile lamp, which is an automobile lamp in which dark spots do not occur in the light projected from a lens. The automobile lamp of the embodiment of the present invention comprises: an aspheric lens; a light source arranged at a farther distance than the focal length of the aspheric lens from the aspheric lens; arranged between the aspheric lens and the light source, The light generated from the light source is reflected to the reflector at the focal length of the aspheric lens. According to the automobile lamp of the present invention, all the light emitted from multiple light sources can be reflected to the focal length of the lens, and dark spots can be prevented from being generated by the light projected from the lens.

Description

car lights

technical field

The invention relates to an automobile lamp, in particular to an automobile lamp in which dark spots are not generated by light projected from a lens.

Background technique

A car is a means of transportation for transporting passengers or goods on the road after the power produced by its own engine is transmitted to the wheels. A car is roughly divided into a body (body) that forms the exterior and a chassis (chassis) where various devices are organically connected. The chassis includes the main devices such as the automobile engine that becomes the driving force, the transmission device, the steering device, the suspension device, and the brake device.

Generally, the front of the car is equipped with lamps that can illuminate the front when driving at night and help the driver identify the road surface and the position of obstacles to ensure the driver's visibility.

Nowadays, a plurality of light emitting diodes (Light Emitting Diodes) are widely used as light sources of automobile lamps, but the light projected from the plurality of light emitting diodes tends to produce dark spots.

Contents of the invention

technical problem

The technical problem to be solved by the present invention is to provide an automobile lamp in which the light projected from the lens does not produce dark spots.

The technical problems of the present invention are not limited to the above. Those skilled in the art can clearly understand other technical problems from the following contents.

Technical solutions

In order to solve the above problems, the technical solution adopted by the present invention is to provide an automotive lamp, comprising: an aspheric lens; a light source arranged at a farther distance from the aspheric lens than the focal length of the aspheric lens; Between the aspheric lens and the light source, there is a reflector for emitting light generated from the light source to the focal length of the aspheric lens.

Beneficial effect

According to the automobile lamp of the present invention, all the light emitted from multiple light sources can be reflected to the focal length of the lens, so as to prevent dark spots from being generated by the light projected from the lens.

The beneficial effects of the present invention are not limited to the above content. Other advantageous effects will be apparent to those skilled in the art from the claims of the present invention.

Description of drawings

Fig. 1 is a structural diagram of an automobile lamp according to an embodiment of the present invention;

Fig. 2 is a partially enlarged structure diagram of the automobile lamp shown in Fig. 1;

Fig. 3 is a partial operation diagram of the automotive lamp shown in Fig. 1;

FIG. 4 is an operation diagram of the automotive lamp illustrated in FIG. 1 .

In the picture:

110: aspheric lens; 120: light source;

130: substrate; 140: reflector;

140a: first opening; 140b: second opening;

150: light guide plate.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention. The same reference symbol in the specification refers to the same member.

The present invention will be described in detail below in conjunction with the accompanying drawings illustrating the automotive lamps of the embodiments of the present invention.

FIG. 1 is a structure diagram of an automobile lamp according to an embodiment of the present invention, and FIG. 2 is a partially enlarged structure diagram of the automobile lamp illustrated in FIG. 1 .

The automobile lamp of one embodiment of the present invention comprises aspheric lens 110, is arranged in from aspheric lens 110 than the light source 120 of the focal length of aspheric lens 110 farther distances, is arranged between aspheric lens 110 and light source 120 and will be from The light generated by the light source 120 is reflected to the reflector 140 at the focal length of the aspheric lens.

The aspheric lens 110 is made of light-transmitting material. The shape of the aspheric lens 110 is not limited, and may have various shapes according to light distribution such as concentration or dispersion of light. The aspheric mirror 110 generates from the light source 120 and distributes the light emitted from the reflector 140 to the exterior of the vehicle. In this embodiment, the aspheric lens 110 can make the light emitted from the reflector 140 go straight.

Light source 120 is a machine that generates light. The light source 120 in this embodiment is formed by a plurality of light emitting diodes (Light Emitting Diode). The plurality of light sources 120 receive power from the substrate 130 . A plurality of light sources 120 are arranged at intervals on the substrate 130 . It is preferable that a plurality of light sources 120 are arranged at intervals on a plane perpendicular to the light distribution direction of the lens. All the light generated from the light source 120 is accommodated by the reflector 140 .

The plurality of light sources 120 are arranged at a distance greater than the focal length (L_f) of the aspheric lens 110 . The distance (L_r) from the aspheric lens 110 to the plurality of light sources 120 is longer than the focal length (L_f).

The reflector 140 reflects light generated from the light source 120 to the focal length (L_f) of the aspheric lens. A plurality of reflectors 140 are provided corresponding to the plurality of light sources 120 . That is, one light source 120 is configured with one reflector 140 .

According to FIG. 2 , the reflector 140 is in the shape of a cylinder with variable openings on both sides. One side of the reflector 140 forms a first opening 140a, and the other side forms a second opening 140b. The light source 120 is disposed on the first opening 140 a of the reflector 140 , and the second opening 140 b of the reflector 140 is provided corresponding to the focal length (L_f) of the aspheric lens 110 .

The reflector 140 receives all the light generated from the light source 120 and emits it to the second opening 140b. The light source 120 is preferably inserted into the first opening 140 a of the reflector 140 so that all the generated light is received by the reflector 140 .

The reflector 140 totally reflects the light generated from the light source 120 . The inner surface of the reflector 140 is curved so that the light generated from the light source 120 is reflected toward the second opening 140b. The reflector 140 has a curved inner surface and is formed in a cylindrical shape with a variable inner diameter.

Since the second opening 140 b of the reflector 140 is arranged corresponding to the focal length (L_f) of the aspheric lens 110 , all light reflected from or passing through the reflector 140 goes toward the aspheric lens 110 .

According to an embodiment, the light guide plate 150 is disposed on the focal length (L_f) of the aspherical lens. The light guide plate 150 is arranged corresponding to the plurality of second openings 140 b of the plurality of reflectors 140 . One light guide plate 150 is formed and arranged to cover the plurality of second openings 140b.

The light guide plate 150 guides all the light emitted from the second openings 140 b of the plurality of reflectors 140 to the aspheric lens 110 . The light guide plate 150 may collect all the light emitted from the second openings 140 b of the plurality of reflectors 140 to the focal point of the aspheric lens 110 .

According to an embodiment, the light guide plate 150 guides light emitted from the second opening portions 140b of the plurality of reflectors 140 to the lower portion of the aspheric lens 110 where the light is distributed.

The function of the automobile lamp according to an embodiment of the present invention will be described below with reference to FIG. 3 and FIG. 4 .

FIG. 3 is a partial operational diagram of the automotive lamp shown in FIG. 1 , and FIG. 3 is an operational diagram of the automotive lamp illustrated in FIG. 1 .

According to FIG. 3 , all the light generated from the light source 120 is received by the reflector 140 and directed toward the inner surface of the reflector 140 or toward the second opening 140 b. The light going toward the inner surface of the reflector 140 is reflected on the inner surface and goes toward the second opening 140b.

All the light reflected from or passed through the plurality of reflectors 140 is received by the light guide plate 150 . That is, all the light emitted from the second openings 140 b of the plurality of reflectors 140 is received by the light guide plate 150 .

According to FIG. 4 , all the light received by the light guide plate 150 is guided to the aspheric lens 110 . The light introduced to the aspheric lens 110 is distributed rectilinearly. According to an embodiment, the light received by the light guide plate 150 is guided to the lower portion of the aspheric lens 110 , and is distributed straightly on the lower portion of the aspheric lens 110 .

The above preferred embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be applied to the foregoing embodiments Modifications are made to the technical solutions, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions described in the various embodiments of the present invention.

Claims (5)

1. A car lamp, characterized in that, comprising: aspheric lens; a light source configured from the aspheric lens at a distance farther than the focal length of the aspheric lens; The reflector is disposed between the aspheric lens and the light source, and emits the light generated from the light source to the focal length of the aspheric lens. 2. The automotive lamp according to claim 1, characterized in that, The light source is equipped with multiple; A plurality of reflectors are provided corresponding to the plurality of light sources. 3. The automotive lamp according to claim 1, characterized in that, The light source is a light emitting diode. 4. The automotive lamp according to claim 1, characterized in that, The reflector has openings on both sides to form a first opening and a second opening, and is in the shape of a cylinder whose inner surface reflects light and whose inner diameter is variable; The light source is arranged at the first opening of the reflector; The focal length of the aspheric lens corresponds to the second opening of the reflector. 5. The automobile lamp according to claim 1, characterized in that, It also includes a focal length configured on the aspheric lens, and guides the light reflected from the reflector to the light guide plate of the aspheric lens.