KR101684003B1

KR101684003B1 - Rear lamp for vehicle

Info

Publication number: KR101684003B1
Application number: KR1020140165152A
Authority: KR
Inventors: 양정규; 안병석
Original assignee: 현대자동차주식회사
Priority date: 2014-11-25
Filing date: 2014-11-25
Publication date: 2016-12-08
Also published as: KR20160062780A

Abstract

A hologram image recorded on a hologram film (10) is reproduced by disposing a light source (30) between the hologram film (10) and an outer lens (20).

Description

REAR LAMP FOR VEHICLE

BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a rear lamp for a vehicle, and more particularly, to a rear lamp for a vehicle that implements a hologram image.

The rear lamp of the vehicle includes a taillight that lights up to prevent a rearward vehicle collision and a braking lamp that is turned on during braking. A typical rear lamp has been developed focusing on securing the visibility of a rearward vehicle. However, recently, As the needs of customers increase, various types of rear lamps are being developed.

For example, Korean Patent Laid-Open Publication No. 10-2008-0112523 discloses a technique in which a plurality of LED electrodes are provided and a plurality of LED electrodes are sequentially turned on during a brake operation.

However, as described above, when a plurality of light sources are used to implement a luminescent image, an excessive number of light sources are required, which is disadvantageous in terms of cost and has a disadvantage in that the structure is complicated and productivity is lowered. Particularly, It is disadvantageous in that it can not satisfy the desire of customers who require various designs by implementing only light emission image.

It should be understood that the foregoing description of the background art is merely for the purpose of promoting an understanding of the background of the present invention and is not to be construed as an admission that the prior art is known to those skilled in the art.

Korean Patent Publication No. 10-2008-0112523

Accordingly, it is an object of the present invention to provide a rear lamp capable of realizing hologram images of various shapes and shapes, which can solve the above-mentioned disadvantages, Further, the object of the present invention is to make it possible to reduce the cost, reduce the weight, and reduce the size of the lamp by simplifying the structure.

According to an aspect of the present invention, there is provided a rear lamp for a vehicle, comprising: a hologram film on which a hologram image is recorded, in which a recorded hologram image is reproduced when light is input; A light source fixedly installed between the hologram film and the outer lens; And a reflector reflecting the light output from the light source toward the hologram film.

Wherein the hologram image has a pattern shape in which reference light recorded on the holographic film when the holographic film is irradiated toward the subject from the opposite side of the subject, and object light recorded on the holographic film after the reference light fits the subject and is refracted, Is an image recorded on a holographic film; The reflection angle of the reflector reflecting the light of the light source toward the hologram film is reflected at an angle equal to the incident angle of the reference light irradiated toward the hologram film for reproduction of the recorded hologram image.

The light source is installed to be fixed to the lamp housing at a position lower than the hologram film so that the light of the light source is not directly irradiated toward the hologram film.

The light of the light source is irradiated only to the reflector through a light transmission hole formed in the lamp housing; And a shield capable of guiding the light of the light source toward the reflector is integrally provided in the light transmission hole.

Further comprising a film fixing plate formed of a light transmitting material to which the hologram film is fixed; And the film fixing plate is connected to the reflector and the lamp housing.

Wherein the film fixing plate comprises a fixed plate fixed to the reflector and the lamp housing to which light reflected by the reflector is incident, and an assembled plate detachably attached to the fixed plate; And the hologram film is fixedly mounted on the fixing plate and the assembling plate.

A light-impermeable coating surface is provided on one side of the holographic film to improve the sharpness of the hologram image by increasing light reflection efficiency; The hologram film is characterized in that the coating surface faces the assembling plate.

An upper reflector assembled detachably to the lamp housing at an upper side opposite to the light source and directly reflecting light of the light source toward the hologram film; And a backside reflector formed to be connected to the upper side reflector and supporting the backside of the assembly plate to prevent the separation of the assembly plate and to reflect light scattered by the backside of the assembly plate toward the fixing plate .

And the upper side reflector is disposed above the hologram film so as not to cover the hologram film and horizontally in a direction perpendicular to the hologram film.

The upper side reflector is disposed at an upper side of the hologram film so as not to block the hologram film and is inclined so that the other end of the hologram film facing the outer lens is positioned lower than one end connected to the rear side reflector.

The rear lamp according to the present invention has a configuration in which a light source is disposed between a hologram film and an outer lens to reproduce a hologram image recorded on the hologram film, and the lamp can be designed in various ways, Thus, there is an effect that cost reduction, weight reduction, and compactness of the lamp can be achieved through simplification of the structure.

1 is a cross-sectional view of a rear lamp embodying a hologram image according to the present invention,
FIG. 2 is an enlarged view of a mounting portion of the holographic film in FIG. 1,
FIGS. 3 and 4 are views for explaining the principle of recording and the principle of reproduction of a hologram image,
5 is a view for explaining an installation structure of a reflector according to the present invention.

Hereinafter, a vehicle rear lamp according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

The present invention relates to a rear lamp for a vehicle for realizing a hologram image in a reflective manner, and as shown in Figs. 1 and 2, a hologram film 10 in which a recorded hologram image is reproduced when light is input is recorded. A light source 30 fixedly installed between the hologram film 10 and an outer lens 20 constituting a rear lamp; And a reflector 40 for reflecting the light output from the light source 30 toward the holographic film 10.

The light source 20 is fixed to a PCB (Printed Circuit Board) for supplying power and the PCB including the light source 20 is fixed to the lamp housing 50.

The holographic film 10 may be a photographic plate on which a hologram image can be recorded, and may also be a flat panel on which a holographic photosensitive material is applied to record an image of irradiated light.

3, the principle of recording a hologram image on the hologram film 10 in a reflective manner according to the present invention is shown.

That is, when the reference light (laser) is irradiated toward the subject 100 at a predetermined angle? Set at the opposite side of the subject 100 with the hologram film 10 interposed therebetween, And the reference light is incident on the hologram film 10 and the irregularly reflected object light is simultaneously recorded. At this time, the reference light and the object light interfere with each other in the hologram film 10, A very fine and complex interference fringe of about 1,500 is formed. This interference fringe becomes a hologram image recorded with one light in the hologram film 10.

4 shows the principle of reproducing the hologram image recorded on the hologram film 10. In order to reproduce the hologram image, the incident angle (?) Of the reference light incident on the hologram film (10) 10 is reflected by the reflector 40 and then the incident angle of the reflector 40 incident on the hologram film 10 is equal to each other to ensure the visibility of the subject 100.

The light source 30 may be fixed to the lamp housing 50 at a lower position than the hologram film 10 so that the light of the light source 30 is not directly irradiated toward the hologram film 10 desirable.

That is, in order to record a hologram image on the holographic film 10, the angle of incidence? Of the reference light must be incident in a state inclined at a predetermined angle of the object light. In order to reproduce the recorded hologram image, The light of the light source 30 provided between the hologram film 10 and the outer lens 20 is incident on the hologram film 10 at the same angle with the incidence angle? In order to directly enter the holographic film 10 at the same angle, the distance between the holographic film 10 and the light source 30 must be long. In this case, as the size of the lamp becomes excessively large, There arises a problem that the hologram film 10 and the light source 30 to be implemented can not be constructed.

Therefore, in the present invention, the light from the light source 30 is incident through the reflector 40 without being directly irradiated toward the holographic film 10, so that the hologram image can be realized more efficiently through the rear lamp, It is possible to construct a more compact image, and furthermore, a clearer hologram image can be realized.

The light emitted from the light source 30 is irradiated only toward the reflector 40 through the light transmission hole 51 formed in the lamp housing 50. For this purpose, It is preferable that a shield 60 capable of guiding the light of the light source 30 toward the reflector 40 is integrally provided.

Further, the present invention may further comprise a film fixing plate 70 formed of a light-transmitting material to which the holographic film 10 is fixed; The film fixing plate 70 is connected to the reflector 40 and the lamp housing 50.

The lamp housing 50 surrounding the reflector 40 when the lamp 30 is installed and the inside of the lamp is viewed through the lamp housing 50 connected to the reflector 40, is a bezel.

The bezel can realize a bezel image and a hidden effect when the light source 30 is not illuminated, thereby further improving the quality of the lamp.

The film fixing plate 70 includes a fixing plate 71 fixed to the reflector 40 and the lamp housing 50 to receive light reflected by the reflector 40 and to be detachably attached to the fixing plate 71 An assembled assembly plate 72; The hologram film 10 is fixedly installed between the fixing plate 71 and the assembly plate 72.

The assembly plate 72 is detachably assembled to the fixing plate 71 so that the hologram film 10 of another kind can be replaced as needed.

The hologram film 10 is provided on one side thereof with a black coating surface 80 of a light-impermeable material for enhancing the sharpness of the hologram image by increasing the light reflection efficiency. So that the coating surface 80 faces the assembly plate 72.

Since the holographic film 10 is a transparent material capable of transmitting light, in order to improve the sharpness of the hologram image and prevent the degradation of the lit image due to irregular reflection of light passing through the film, the hologram film 10 is made light- And the black coating surface 80 of the material is integrally bonded.

The reflector 40 is detachably assembled to the lamp housing 50 at an upper side opposite to the light source 30 and reflects light of the light source 30 directly toward the hologram film 10. [ (41); And the upper side reflector 41 and supports the back surface of the assembly plate 72 to prevent the separation of the assembly plate 72. The light scattered on the back surface of the assembly plate 72 And a backside reflector (42) for reflecting the light toward the fixing plate (71).

The backside reflector 42 functions to reflect the light of the light source 30 scattered by the back surface of the assembly plate 72 back toward the outer lens 20, It is possible to greatly reduce the loss and further secure the light quantity, the light efficiency of the rear lamp can be greatly improved, and further, the sharpness of the hologram image can be greatly improved.

5, the upper side reflector 41 is located above the hologram film 10 so as not to block the hologram film 10 and is located at a position perpendicular to the hologram film 10 Or a structure in which the other end of the outer lens 20 facing the outer lens 20 is positioned lower than the one end connected to the backside reflector 42 as shown by a dotted line in FIG.

When the upper side reflector 41 is inclined as described above, the spacing L1 and L2 between the hologram film 10 and the light source 30 can be significantly reduced compared to the structure in which the hologram film 10 is horizontally disposed at right angles to the hologram film 10 As a result, it is possible to reduce the size of the rear lamp, thereby making it possible to manufacture a rear lamp compact, further reducing the weight and reducing the cost.

As described above, according to the embodiment of the present invention, a hologram image, which is a three-dimensional image, can be realized by a relatively small light source as compared with a conventional structure lamp that implements an emission image using a plurality of light sources, The weight reduction and the work flow can be reduced.

In addition, since the image recorded on the holographic film 10 is reproduced in realizing the luminescent image, it is possible to realize images of various shapes and shapes, and 3D stereoscopic images can be realized.

In addition, since the light irradiated to the holographic film 10 is recognized by the human eye after passing through the holographic film 10, more light can be exposed than when the light is reflected by the image and reproduced, There is also an advantage in that improved visibility can be secured.

In addition, the present invention has a structure in which the light source 30 is disposed between the hologram film 10 and the outer lens 20, thereby greatly reducing the size of the rear lamp, thereby making it possible to reduce the size of the lamp There are also advantages.

While the present invention has been particularly shown and described with reference to specific embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the following claims It will be apparent to those of ordinary skill in the art.

10 - Hologram film 20 - Outer lens
30 - Light source 40 - Reflector
50 - Lamp housing 60 - Shield
70 - Film fixing plate 80 - Coating surface

Claims

A hologram film in which a holographic image is recorded, and a recorded hologram image is reproduced when light is input;
A light source fixedly installed between the hologram film and the outer lens; And
And a reflector for reflecting light output from the light source toward the hologram film;
Wherein the light source is installed to be fixed to the lamp housing at a position lower than the hologram film so that light of the light source is not directly irradiated to the hologram film.

The method according to claim 1,
Wherein the hologram image has a pattern shape in which reference light recorded on the holographic film when the holographic film is irradiated toward the subject from the opposite side of the subject, and object light recorded on the holographic film after the reference light fits the subject and is refracted, Is an image recorded on a holographic film;
Wherein a reflection angle of the reflector reflecting the light of the light source toward the hologram film is reflected at an angle equal to an incident angle of the reference light irradiated toward the hologram film for reproduction of the recorded hologram image.

delete

The method according to claim 1,
The light of the light source is irradiated only to the reflector through a light transmission hole formed in the lamp housing;
And a shield capable of guiding light of the light source toward the reflector is integrally provided in the light transmission hole.

The method according to claim 1,
Further comprising a film fixing plate formed of a light transmitting material to which the hologram film is fixed;
And the film fixing plate is connected to the reflector and the lamp housing.

The method of claim 5,
Wherein the film fixing plate comprises a fixed plate fixed to the reflector and the lamp housing to which light reflected by the reflector is incident, and an assembled plate detachably attached to the fixed plate;
And the hologram film is fixedly mounted on the fixing plate and the assembling plate.

The method of claim 6,
A light-impermeable coating surface is provided on one side of the holographic film to improve the sharpness of the hologram image by increasing light reflection efficiency;
Wherein the hologram film is provided so that the coated surface faces the assembling plate.

The method of claim 6,
An upper reflector assembled detachably to the lamp housing at an upper side opposite to the light source and directly reflecting light of the light source toward the hologram film; And
And a backside reflector that is formed to be connected to the upper side reflector and supports the backside of the assembly plate to prevent the separation of the assembly plate and reflects light scattered by the backside of the assembly plate toward the fixing plate, And the rear lamp is a rear lamp.

The method of claim 8,
Wherein the upper side reflector is disposed above the hologram film so as not to cover the hologram film and horizontally in a direction perpendicular to the hologram film.

The method of claim 8,
Wherein the upper side reflector is disposed at an upper side of the hologram film so as not to cover the hologram film and is inclined so that the other end of the hologram film facing the outer lens is located lower than one end connected to the rear side reflector.