KR20160133109A

KR20160133109A - Head lamp having at the same time the side and front projection lens

Info

Publication number: KR20160133109A
Application number: KR1020150065734A
Authority: KR
Inventors: 고광민
Original assignee: 현대자동차주식회사
Priority date: 2015-05-12
Filing date: 2015-05-12
Publication date: 2016-11-22

Abstract

The present invention relates to a headlamp comprising a reflector having a lamp, a projection lens for irradiating the light of the lamp forward, and a projection holder for fixing the projection lens to the reflector, And a reflector for reflecting the light emitted from the reflector toward the reflector. The reflector includes a side lens portion for extending the reflector toward the reflector, And an inner side surface of the lateral lens portion is formed as a concave surface so that the light collected by the focus portion passes through the lateral lens portion and secures straightness, By providing a headlamp having a used projection lens, It is possible to realize a unique (unique) design according to lateral extension as well as to increase the optical performance by securing the lateral visibility of the driver, reducing the weight and cost compared with the conventional one, .

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a head lamp having a front /

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a headlamp, and more particularly, to a headlamp having a headlamp having a front / side simultaneous projection lens for lateral use, Lamp.

Generally, a headlamp (100) for a vehicle is installed in a lamp housing and is configured to irradiate light in a direction coinciding with a center line of the vehicle. It is necessary to secure visibility for forward sighting of a driver, It is a safety item.

1 and 2, a general headlamp 100 includes a reflector 110 having a lamp 111, a projection lens 110 for irradiating the light of the lamp 111 forward, And a projection holder 130 for fixing the projection lens 120 to the reflector 110.

In this way, since the conventional head lamp 100 is viewed only in the front direction, a safety accident such as a collision occurs because the object located in the lateral direction of the vehicle can not be recognized during the curved traveling.

Therefore, in order to prevent the above-mentioned stabilization accident, conventionally, a side-by-side lamp and a front-side lamp are separately provided and proposed in KR 2011-036269 A (drawings and reference numerals according to the conventional structure are omitted) A front lamp for illuminating a front side of the vehicle, a side lamp for illuminating a side of the vehicle, and a lamp housing to which the front lamp and the side lamp are fixed to each other, The lamp is provided with a convex surface on which the light is emitted and an arc-shaped refracting surface that is inclined toward one side of the convex surface and curved concavely toward the convex surface, And a projection lens for projecting the light from the side surface of the projection lens, There is provided a head lamp equipped with a side-by-side projection lens having a structure including a light source.

However, conventionally, the structure for installing each lamp is very complicated, the compatibility is poor, and the thickness of the lens is so thick that the weight and cost of the lamp are increased.

Further, there is a problem that optical efficiency such as a part of the light emitted from the lamp 111 is discarded without passing through the projection lens 110 in the head lamp 100.

KR 1998-038924 A KR 2011-036269 A KR 1998-017359 U

In order to solve the above-mentioned problems, the present invention employs a projection lens having a lateral lens portion, so that light discarded in a head lamp is utilized as a lateral projection to increase the optical performance, securing lateral visibility of the driver, And a headlamp having a front / side simultaneous projection projection lens capable of realizing a unique (unique) design according to side extension while reducing weight and cost.

According to an aspect of the present invention, there is provided a head lamp comprising a reflector having a lamp, a projection lens for forwarding light of the lamp, and a projection holder for fixing the projection lens to the reflector, Side projection lens having a side lens portion for one side portion extending downward to the reflector side to utilize light discarded in the head lamp as a side projection.

Here, a focus portion is further provided on the inner side surface of the reflector located on the extended line for forgetting the side lens portion and the lamp, so as to secure lateral light from the lamp, and the inner side surface of the side lens portion is gathered by the focus portion And is formed as a concave surface so that light can pass through the side lens portion and ensure straightness.

The projection lens is further provided with a convex surface on the inner surface of the front lens unit so that the light of the lamp passes through the projection lens to secure frontal linearity.

By providing the present invention configured as described above, it is possible to utilize light discarded in a headlamp as a side view to increase optical performance, ensure side visibility of a driver, reduce weight and cost compared to conventional ones, It is possible to implement a unique (unique) design according to the extension.

1 is a block diagram of a headlamp to which a conventional projection lens is applied.
2 is a cross-sectional view of a conventional projection lens.
3 is a configuration diagram of a headlamp to which a projection lens according to the present invention is applied.
4 is a sectional structural view of a projection lens according to the present invention.
5 is a diagram illustrating an example of disassembly state of a projection lens according to the present invention.
6 is a performance comparison chart of the conventional and the projection lens of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can readily implement the present invention.

The head lamp 100 having the front / side simultaneous projection projection lens of the present invention has a reflector 110 having a lamp 111 as shown in FIG. 3, A headlamp 100 composed of a projection lens 120 for irradiating the light of the lamp 111 forward and a projection holder 130 for fixing the projection lens 120 to the reflector 110, It accomplishes.

The side lens unit 125 further includes a side lens part 125 extending downward toward the reflector 110 to utilize light discarded in the head lamp 100 by using the side lens.

That is, the projection lens 120 has a form of a composite lens in which the side lens part 125 is integrally extended from the front lens part 121. [

As described above, most of the light emitted from one lamp 111 is utilized in the front lens section 121 of the projection lens 120, and the remaining light is irradiated laterally through the lateral lens section 125, It is possible to irradiate both the front and the side with only one projection lens 120.

5, an inner surface of the reflector 110 positioned on an extension line for forgetting the side lens unit 125 and the lamp 111 is provided with a lamp 111 A focus portion 113 may be further formed to secure lateral light.

In other words, the focus unit 113 reflects the light of the lamp 111 and focuses the light on the side lens unit 125, Minimize losses.

The inner side surface of the lateral lens portion 125 is formed as a concave surface 127 so that the light collected by the focus portion 113 passes through the lateral lens portion 125 and secures straightness.

This allows the light passing through the side lens portion 125 to which the concave surface 127 is applied to spread evenly from the front to the side, thereby further securing the visibility.

The inner surface of the front lens 121 of the projection lens 120 is formed as a convex surface 123 so that the light of the lamp 111 passes through the projection lens 120 to secure frontal linearity .

Accordingly, when the light emitted from the lamp 111 passes through the convex surface 123, the light has a straight structure and maintains the straightness so that the light passes through the outer surface of the front lens part 121 and is focused on the front side .

The projection lens 120 is coupled to the projection lens 120 and is coupled to the projection lens 120. The projection lens 120 is coupled to the projection lens 120, The engagement flange 129 is formed to protrude and engage with each other.

6 is a graph comparing the performance of the projection lens according to the conventional art and the projection lens according to the present invention. In the conventional headlamp, the illuminated light is uniformly displayed on both sides with respect to the center, 120 can be irradiated to both the front and the side of the head lamp 100 and it can be confirmed that the irradiated light is widely distributed sideways with respect to the center.

Further, the connectivity between the light radiated laterally through the one projection lens 120 and the light radiated forward is natural, thereby further ensuring the visibility of the operator and securing optical efficiency of about 20% or more.

By providing the present invention configured as described above, it is possible to utilize light discarded in a headlamp as a side view to increase optical performance, ensure side visibility of a driver, reduce weight and cost compared to conventional ones, It is possible to realize a unique (unique) design according to the extension.

The terms and words used in the present specification and claims should not be construed to be limited to ordinary or dictionary terms. It should be interpreted as meaning and concept consistent with the technical idea of the present invention.

Therefore, the configurations shown in the drawings and the embodiments described herein are merely the most preferred embodiments of the present invention, and are not intended to represent all of the technical ideas of the present invention. Therefore, It should be understood that various equivalents and modifications are possible.

100: head lamp 110: reflector
111: lamp 113: focus portion
120: projection lens 121: front lens unit
123: convex surface 125: side lens portion
127: concave surface 130: projection holder
131:

Claims

A projection lens 120 for irradiating the light of the lamp 111 forward and a projection holder 130 for fixing the projection lens 120 to the reflector 110. [ In the head lamp 100,
One side of the projection lens 120 extends downward toward the reflector 110 and a side lens part 125 which serves to sideways the light discarded in the head lamp 100 Wherein the headlamp has a front / side simultaneous projection lens.

The method according to claim 1,
A focus portion 113 is further formed on the inner surface of the reflector 110 located on the extension line for forgetting the side lens portion 125 and the lamp 111 so as to secure lateral light from the lamp 111 A headlamp having a front / side simultaneous projection lens.

The method according to claim 1,
Wherein the inner side surface of the lateral lens portion 125 is formed as a concave surface 127 so that the light collected by the focus portion 113 passes through the lateral lens portion 125 to secure straightness. Headlamp with lateral projection lens.

The method according to claim 1,
Wherein an inner side surface of the center portion of the projection lens 120 is formed as a convex surface 123 so as to ensure forward linearity while light of the lamp 111 passes through the projection lens 120. [ Headlamps with simultaneous projection lenses.

The method according to claim 1,
Wherein an upper end coupling portion 131 of the projection holder 130 coupled to the periphery of the projection lens 120 is formed obliquely to correspond to the lateral lens portion 125 of the projection lens 120. [ Headlamps with simultaneous projection lenses.