US-12624812-B2 - Vehicle lamp

US12624812B2US 12624812 B2US12624812 B2US 12624812B2US-12624812-B2

Abstract

A vehicle lamp including a first light source unit including a plurality of first light source parts, a second light source unit including a plurality of second light source parts, a first total reflection lens including a first lens structure that condenses light radiated from the plurality of first light source parts and emits the light to the front, a second total reflection lens formed integrally with a plurality of second lens structures that condenses light radiated from the plurality of second light source parts and emits the light to the front and formed integrally on the other side of the first total reflection lens, and an emission lens including a first emission lens part disposed in front of the first total reflection lens and a second emission lens part disposed in front of the second total reflection lens.

Inventors

Min Ji Jin

Assignees

HYUNDAI MOBIS CO., LTD.

Dates

Publication Date: 20260512
Application Date: 20250725
Priority Date: 20241007

Claims (13)

1 . A vehicle lamp comprising: a first light source unit including a plurality of first light source parts disposed along a first side of the vehicle lamp in a left-right direction; a second light source unit including a plurality of second light source parts disposed along a second side of the vehicle lamp in the left-right direction opposite the first light source unit; a first total reflection lens including a first lens structure configured to condense light radiated from the plurality of first light source parts and to emit the light to a front side of the vehicle lamp; a second total reflection lens formed integrally with a plurality of second lens structures configured to condense light radiated from the plurality of second light source parts and to emit the light to the front side of the vehicle lamp, and formed integrally side-by-side with the first total reflection lens; and an emission lens including a first emission lens part disposed adjacent to the first total reflection lens on front side of the vehicle lamp and a second emission lens part disposed adjacent to the second total reflection lens on front side of the vehicle lamp, wherein a first light distribution pattern is formed by light emitted from the first emission lens part, wherein a second light distribution pattern different from the first light distribution pattern is formed by light emitted from the second emission lens part, and wherein the first light distribution pattern and the second light distribution pattern overlap each other to form a high beam pattern.
2 . The vehicle lamp of claim 1 , wherein the first emission lens part includes a first incident surface on which light output from the first total reflection lens is incident and a first emission surface from which the incident light is output, wherein the second emission lens part includes a second incident surface on which light output from the second total reflection lens is incident and a second emission surface from which the incident light is output, and wherein the first incident surface and the second incident surface have different shapes.
3 . The vehicle lamp of claim 2 , wherein the first lens structure includes: a (1-1) th light incident portion on which light is incident; a (1-2) th light incident portion disposed on both sides of the (1-1) th light incident portion in the left-right direction; and a first body portion integrally formed adjacent to the (1-1) th light incident portion and the (1-2) th light incident portion.
4 . The vehicle lamp of claim 3 , wherein the first body portion includes an integrated light output surface from which the light incident from the (1-1) th light incident portion and the (1-2) th light incident portion is emitted to the front side of the vehicle lamp, and wherein the integrated light output surface is a curved surface, and a cross-sectional shape of the integrated light output surface in the left-right direction is concavely curved in a direction toward the first light source unit.
5 . The vehicle lamp of claim 4 , wherein a central axis of the (1-2) th light incident portion is formed at an angle different from that of a central axis of the (1-1) th light incident portion, and wherein central axes of the (1-2) th light incident portions are formed to be symmetrical to each other with respect to the central axis of the (1-1) th light incident portion.
6 . The vehicle lamp of claim 5 , wherein a path of the light incident from the (1-1) th light incident portion forms a horizontal focal point on the integrated light output surface, and wherein an optical path by a first portion of the light incident from the (1-2) th light incident portion forms a same horizontal focal point as the horizontal focal point by the (1-1) th light incident portion on the integrated light output surface, and an optical path of a second portion thereof is defocused on the integrated light output surface.
7 . The vehicle lamp of claim 4 , wherein the first body portion includes: a first lower surface; and a first upper surface disposed above the first lower surface, wherein the first upper surface is inclined downward toward the integrated light output surface.
8 . The vehicle lamp of claim 2 , wherein each of the plurality of second lens structures includes: a second light incident portion on which light is incident; and a second body portion disposed adjacent to the second light incident portion and having an individual light output surface through which the light is emitted to the front side of the vehicle lamp, wherein the plurality of individual light output surfaces in the plurality of second lens structures are formed on different planes.
9 . The vehicle lamp of claim 8 , wherein light guided by the plurality of second lens structures forms a plurality of vertical focal points based on a vertical direction, and wherein the plurality of vertical focal points are formed on the individual light output surfaces and are bent in bent directions of the individual light output surfaces.
10 . The vehicle lamp of claim 8 , wherein the second body portion includes: a second lower surface; and a second upper surface disposed above the second lower surface, and wherein the second upper surface is inclined downward toward the individual light output surface.
11 . The vehicle lamp of claim 2 , wherein the first incident surface is convex in a direction toward the first total reflection lens based on the left-right direction, and wherein the first emission surface is convex toward the front side of the vehicle lamp based on the left-right direction.
12 . The vehicle lamp of claim 2 , wherein the second incident surface is bent in a direction toward the second total reflection lens from a first end of the vehicle lamp to a second end of the vehicle lamp in the left-right direction, and wherein the second emission surface is bent in a shape corresponding to the second incident surface based on the left-right direction.
13 . The vehicle lamp of claim 2 , wherein the first emission surface and the second emission surface are continuous.

Description

CROSS-REFERENCE TO RELATED APPLICATION This application claims the benefit of priority to Korean Patent Application No. 10-2024-0136061, filed in the Korean Intellectual Property Office on Oct. 7, 2024, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD The present disclosure relates to a vehicle lamp. BACKGROUND In general, vehicles are provided with various types of lamps having a lighting function for easily identifying an object located around a vehicle during night traveling and a signal function for notifying other vehicles or road users of a traveling state of the vehicle. Examples of vehicle lamps include head lamps (headlights) and fog lamps mainly for the purpose of lighting functions and turn signal lamps, tail lamps, brake lamps, side markers and the like for the purpose of signal functions, and installation standards and specifications of these vehicle lamps are regulated by laws so that the respective functions are fully exhibited. Among the vehicle lamps, a head lamp, which forms a low-beam pattern or a high-beam pattern to ensure a front view of a driver during night driving, plays a very important role in safe driving. Meanwhile, in recent years, performance of the head lamp is important, but external designs of the head lamp and a light distribution pattern are also important. However, in the related art, since an aspherical lens having a single focal point should be applied to form a light distribution pattern, it is difficult to implement various designs of the head lamp and the light distribution patten, and thus there is limitation in term of design, and it is difficult to satisfy rapidly changing consumer needs. Further, in the related art, as different optical systems should be used to form a long-range light distribution pattern and a short-range light distribution pattern, a structure and a manufacturing process are complicated and manufacturing costs increase. Accordingly, in recent years, various researches are conducted to simplify the structure and the manufacturing process and improve design characteristics of the lamp and the light distribution pattern, but the researches are still insufficient, and thus development thereof is required. SUMMARY The present disclosure has been made to solve the above-mentioned problems occurring in the prior art while advantages achieved by the prior art are maintained intact. An aspect of the present disclosure provides a vehicle lamp that improves light efficiency by simplifying assembly and minimizing an assembly tolerance, through simplification of components. The technical problems to be solved by the present disclosure are not limited to the aforementioned problems, and any other technical problems not mentioned herein will be clearly understood from the following description by those skilled in the art to which the present disclosure pertains. According to an aspect of the present disclosure, a vehicle lamp includes a first light source unit including a plurality of first light source parts disposed along a first side of the vehicle lamp in a left-right direction; a second light source unit including a plurality of second light source parts disposed along a second side of the vehicle lamp in the left-right direction opposite the first light source unit; a first total reflection lens including a first lens structure configured to condense light radiated from the plurality of first light source parts and to emit the light to a front side of the vehicle lamp; a second total reflection lens formed integrally with a plurality of second lens structures configured to condense light radiated from the plurality of second light source parts and to emit the light to the front side of the vehicle lamp, and formed integrally side-by-side with the first total reflection lens; and an emission lens including a first emission lens part disposed adjacent to the first total reflection lens on front side of the vehicle lamp and a second emission lens part disposed adjacent to the second total reflection lens on front side of the vehicle lamp. A first light distribution pattern is formed by light emitted from the first emission lens part, a second light distribution pattern different from the first light distribution pattern is formed by light emitted from the second emission lens part, and the first light distribution pattern and the second light distribution pattern overlap each other to form a high beam pattern. The first emission lens part may include a first incident surface on which light output from the first total reflection lens is incident and a first emission surface from which the incident light is output, the second emission lens part may include a second incident surface on which light output from the second total reflection lens is incident and a second emission surface from which the incident light is output, and the first incident surface and the second incident surface may have different shapes. The first le