KR20110084783A - Head lamp for vehicles - Google Patents

Head lamp for vehicles Download PDF

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Publication number
KR20110084783A
KR20110084783A KR1020100004517A KR20100004517A KR20110084783A KR 20110084783 A KR20110084783 A KR 20110084783A KR 1020100004517 A KR1020100004517 A KR 1020100004517A KR 20100004517 A KR20100004517 A KR 20100004517A KR 20110084783 A KR20110084783 A KR 20110084783A
Authority
KR
South Korea
Prior art keywords
light source
axis
vehicle
light
reflector
Prior art date
Application number
KR1020100004517A
Other languages
Korean (ko)
Inventor
안유근
Original Assignee
현대모비스 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 현대모비스 주식회사 filed Critical 현대모비스 주식회사
Priority to KR1020100004517A priority Critical patent/KR20110084783A/en
Publication of KR20110084783A publication Critical patent/KR20110084783A/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/321—Optical layout thereof the reflector being a surface of revolution or a planar surface, e.g. truncated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/0008—Reflectors for light sources providing for indirect lighting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes

Abstract

PURPOSE: A head lamp for vehicle is provided to widely diffuse the light irradiated to the front of vehicle to the lateral direction by slantly arranging the light source to rearward and one side of the reflector. CONSTITUTION: A light source(10) irradiates the light. A reflector(30) reflects the light irradiated from the light source to the front. Z optical axis of the light source is arranged to be separated with the Z-axis. Y optical axis of the light source is arranged to be clockwise separated around the X-axis from the Y-axis.

Description

Automotive Headlamps {HEAD LAMP FOR VEHICLES}

The present invention relates to a vehicle headlamp, and more particularly, to a vehicle headlamp that can improve the light efficiency of light irradiated from a light source.

In general, a vehicle lamp includes a head lamp installed at the front of the vehicle and a rear lamp installed at the rear of the vehicle.

The headlamp is a lamp that illuminates the front to illuminate the vehicle during night driving, and includes a fog light that makes it easy for other vehicles and pedestrians to recognize the vehicle in the event of snow, rain, and fog, and a direction indicator indicating the direction of the vehicle. .

The rear lamp includes a brake light that is turned on when the driver operates the brake, a rear light that is turned on when the vehicle reverses, and a direction indicator that informs the direction of travel of the vehicle.

Recently, various light sources such as LEDs have been applied to vehicle lamps, and include a light source for irradiating light and a reflector installed at the rear of the light source to reflect light emitted from the light source to the front.

The technical structure described above is a background technique for assisting the understanding of the present invention, and does not mean the prior art widely known in the technical field to which the present invention belongs.

The headlamp for a vehicle according to the prior art has a problem that the light efficiency of the light source is not good and the light distribution pattern is not good because the amount of light that is not irradiated to the front of the vehicle is lost when the light emitted from the light source is reflected forward by the reflector. There is this.

Therefore, there is a need for improvement.

SUMMARY OF THE INVENTION An object of the present invention is to provide a headlamp for a vehicle capable of securing a driver's field of view by allowing light emitted from a light source to be irradiated farther and diffused laterally.

The present invention to achieve the above object, the light source for irradiating light; And a reflector for reflecting forward the light emitted from the light source; The Z optical axis of the light source provides a headlamp for a vehicle, which is disposed to be spaced apart from the Z axis.

In addition, the Y optical axis of the light source of the present invention is characterized in that it is arranged to be spaced apart clockwise from the Y axis around the X axis.

In addition, the Y optical axis of the light source of the present invention is characterized in that disposed 1 to 5 degrees spaced apart in the clockwise direction from the Y axis around the X axis.

In addition, the Z optical axis of the light source of the present invention is characterized in that it is disposed clockwise spaced from the Z axis around the Y axis.

In addition, the Z optical axis of the light source of the present invention is characterized by being disposed 1 to 5 degrees in the clockwise direction from the Z axis around the Y axis.

In addition, the X optical axis of the light source of the present invention is characterized in that it is disposed clockwise from the X axis along a horizontal plane around the second focus of the reflector.

In addition, the X optical axis of the light source of the present invention is characterized in that disposed 1 to 5 degrees clockwise from the X axis along the horizontal plane around the second focus of the reflector.

Since the light source according to the present invention is disposed to be inclined to the rear and one side of the reflector, the light irradiated to the front of the vehicle through the lens is irradiated farther and wider in the lateral direction, thereby effectively securing the driver's field of view. .

1 is a block diagram illustrating a vehicle headlamp according to an embodiment of the present invention.
2 is a front view illustrating a vehicle headlamp according to an embodiment of the present invention.
3 is a side view showing a headlamp for a vehicle according to an embodiment of the present invention.
4 is a plan view showing a headlamp for a vehicle according to an embodiment of the present invention.

Hereinafter, an embodiment of a headlamp for a vehicle according to the present invention will be described with reference to the accompanying drawings.

In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description.

In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to a user's or operator's intention or custom.

Therefore, definitions of these terms should be made based on the contents throughout this specification.

1 is a block diagram showing a vehicle headlamp according to an embodiment of the present invention, Figure 2 is a front view showing a vehicle headlamp according to an embodiment of the present invention, Figure 3 is an embodiment of the present invention Figure 4 is a side view showing a vehicle headlamp according to Figure 4 is a plan view showing a vehicle headlamp according to an embodiment of the present invention.

1 and 2, a headlamp for a vehicle according to an exemplary embodiment of the present invention includes a light source 10 for irradiating light and a reflector 30 for reflecting light irradiated from the light source 10 forward. The Z optical axis of the light source 10 is disposed to be spaced apart from the Z axis.

Since the Z optical axis of the light source 10 is disposed to be spaced apart from the Z axis, the light source 10 is disposed to be spaced apart from the horizontal plane to intensively irradiate light to a portion of the reflector 30.

The light irradiated to the reflector 30 is reflected to pass through the lens 50 after passing through the second oval-shaped focus made by the reflector 30 to go straight ahead of the vehicle.

In particular, the light irradiated to the rear lower side of the reflector 30 is reflected in a direction far from the vehicle, and the light irradiated to the lower side of the side of the reflector 30 is reflected in the direction diffused from the vehicle in the lateral direction.

Therefore, when the light source 10 is inclined so as to face the rear and side surfaces of the reflector 30, the light reflected by the reflector 30 passes through the lens 50 and is irradiated forward to extend the light away from the vehicle. Irradiated, the effect is spread widely in the lateral direction of the vehicle.

When the X-axis, Y-axis, and Z-axis of the light source 10 are defined, the X-axis of the light source 10 is an axis connecting the center of the light source 10 and the second focus 32 of the reflector 30, The Y optical axis of 10) is an axis orthogonal to the X optical axis in the plane including the light source 10, and the Z optical axis of the light source 10 is an axis orthogonal to the X optical axis and the Y optical axis in a plane orthogonal to the light source 10.

When defining the X, Y, and Z axes, the X axis is an axis connecting the second focal point 32 of the reflector 30 to the center of the lens 50, and the Y axis is an axis perpendicular to the X axis in a horizontal plane including the X axis. The Z axis is an axis orthogonal to the X axis and the Y axis in a plane perpendicular to the horizontal plane.

In addition, the reflector 30 is formed such that the sum of the distances from the first focus point and the second focus point 32 is the same as the shape of a part of the ellipse whose length is the same as that of the long axis.

Therefore, when the light source 10 is disposed at the position of the first focus of the ellipse and the focus of the lens 50 is positioned at the same position as the second focus 32 of the ellipse, the light emitted from the light source 10 is reflected by the reflector 30. Reflected by the second focal point 32, and both pass through the lens 50 is refracted and go straight, this embodiment arranges the light source 10 spaced apart from the first focus.

Therefore, compared to when the light source 10 is positioned at the first focus of the reflector 30, the light irradiated to the front of the vehicle is irradiated farther and spreads laterally wider.

Since the Y optical axis of the light source 10 according to the present exemplary embodiment is disposed to be spaced apart in the clockwise direction about the X axis, the light source 10 is disposed to be inclined toward one end portion of the reflector 30.

The light irradiated to one side end of the reflector 30 is reflected by the reflector 30, passes through the second focus 32, is refracted while passing through the lens 50, and diffuses in the other direction of the vehicle.

Therefore, when the light source 10 is inclined toward one end of the reflector 30, more light is irradiated toward one end of the reflector 30, so that light that is diffused toward the other side of the vehicle increases and is irradiated toward the front of the vehicle. The effect is that light is diffused widely in the lateral direction.

The Y optical axis of the light source 10 is preferably arranged to be spaced apart from 1 degree to 5 degrees clockwise about the X axis, and when the light source 10 is spaced more than 5 degrees, the light irradiated to the front of the vehicle is diffused more than necessary laterally It may interfere with the driver's view of driving in the opposite lane and may interfere with light emitted from adjacent headlamps.

Referring to FIG. 3, since the Z optical axis of the light source 10 according to the present exemplary embodiment is disposed to be spaced apart in a clockwise direction about the Y axis, the light source 10 is disposed to be inclined toward the rear end side of the reflector 30.

The light irradiated toward the rear end side of the reflector 30 is reflected by the reflector 30 and refracted while passing through the lens 50, and irradiated toward the front end side of the vehicle, and the light irradiated toward the rear end side of the reflector 30, It is irradiated in a direction farther from the vehicle as compared with light reflected from the upper side of the reflector 30 and irradiated to the front of the vehicle.

Therefore, when the light source 10 is inclined toward the rear end side of the reflector 30, more light is irradiated toward the rear end side of the reflector 30, so that the light irradiated further away from the vehicle increases.

In addition, the Z optical axis of the light source 10 is preferably disposed 1 to 5 degrees spaced apart in the clockwise direction around the Y axis, and when spaced more than 5 degrees, the light irradiated to the front of the vehicle to a farther direction than necessary It may be difficult to obtain a near field vehicle for the survey.

Referring to FIG. 4, since the X-axis of the light source 10 is disposed to be spaced apart in the clockwise direction along a horizontal plane with respect to the second focal point 32 of the reflector 30, the light source 10 is in one direction of the reflector 30. Is placed in a biased position.

In addition, the X optical axis of the light source 10 is preferably disposed 1 to 5 degrees apart clockwise along the horizontal plane around the second focus 32 of the reflector 30.

When the light source 10 is disposed to be biased in one direction from the center of the reflector 30, the light passing through the shield 70 passes through the lower part of the shape of the shield 70, so that the light irradiated toward the front of the vehicle is The effect of irradiating in a direction farther from the vehicle is shown.

Here, the shield 70 is a member that blocks a portion of the light reflected by the reflector 30 and is irradiated toward the lens 50 to form a light distribution pattern desired by the designer. One side and the other side of the shield 70 Since the height is formed different from each other to adjust the direction and the distance to the light passing through the shield (70).

In the present embodiment, the shield 70 having the right portion formed lower than the left portion has been described as an example, and when describing the embodiment in which the right portion of the shield 70 is formed higher than the left portion, the separation direction described in the clockwise direction is It is preferable that it is described counterclockwise. This can be easily changed and implemented by those skilled in the art having recognized the technical configuration of the present invention will not be described in detail drawings or description of other embodiments.

Looking at the operation of the headlamp of the vehicle according to an embodiment of the present invention configured as described above are as follows.

Referring to FIG. 1, when a headlamp is turned on while driving a vehicle, light emitted from the light source 10 is reflected by the reflector 30 and is refracted while passing through the lens 50 to go straight ahead of the vehicle.

At this time, since the light reflected by the reflector 30 toward the lens 50 is partially blocked by the shield 70, the designer irradiates the front of the vehicle while forming a desired light distribution pattern.

Here, since the light source 10 is disposed to be inclined toward the rear end side and one side end side of the reflector 30, the amount of light irradiated toward the rear end side of the reflector 30 and the light irradiated toward one side end side of the reflector 30 is reduced. As a result, the light irradiated to the front of the vehicle is irradiated farther and wider in the lateral direction.

In addition, since the light source 10 is biased toward the right side where the shield 70 is formed to be low, the light source 10 passes through the lower part of the shield 70 so that the light irradiated to the front of the vehicle is irradiated to a farther distance.

As a result, the light emitted from the light source 10 can be irradiated farther and diffused laterally, thereby providing a vehicle headlamp capable of securing a driver's field of view.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and various modifications and equivalent other embodiments are possible to those skilled in the art. Will understand.

In addition, although the vehicle headlamp has been described as an example, this is merely exemplary, and the lamp of the present invention may be used in a product other than the vehicle headlamp.

Therefore, the true technical protection scope of the present invention will be defined by the claims below.

10: light source 30: reflector
32: second focus 50: lens
70: shield

Claims (7)

A light source for irradiating light; And
A reflector for reflecting forward light from the light source;
The Z optical axis of the light source is a vehicle headlamp, characterized in that spaced apart from the Z axis.
The method of claim 1,
The Y optical axis of the light source is a vehicle headlamp, characterized in that spaced apart from the Y axis in the clockwise direction.
The method of claim 2,
The Y optical axis of the light source is a headlamp for a vehicle, characterized in that spaced from 1 to 5 degrees clockwise from the Y axis around the X axis.
4. The method according to any one of claims 1 to 3,
The Z optical axis of the light source is a vehicle headlamp, characterized in that spaced apart from the Z axis in the clockwise direction.
The method of claim 4, wherein
The Z optical axis of the light source is a headlamp for a vehicle, characterized in that spaced from 1 degree to 5 degrees clockwise from the Z axis around the Y axis.
The method of claim 4, wherein
The X-light axis of the light source is a vehicle headlamp, characterized in that spaced apart from the X-axis along the horizontal plane around the second focus of the reflector clockwise.
The method of claim 6,
The X-ray axis of the light source is a headlamp for a vehicle, characterized in that disposed 1 to 5 degrees clockwise from the X axis along the horizontal plane around the second focus of the reflector.
KR1020100004517A 2010-01-18 2010-01-18 Head lamp for vehicles KR20110084783A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020100004517A KR20110084783A (en) 2010-01-18 2010-01-18 Head lamp for vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020100004517A KR20110084783A (en) 2010-01-18 2010-01-18 Head lamp for vehicles

Publications (1)

Publication Number Publication Date
KR20110084783A true KR20110084783A (en) 2011-07-26

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Application Number Title Priority Date Filing Date
KR1020100004517A KR20110084783A (en) 2010-01-18 2010-01-18 Head lamp for vehicles

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101344428B1 (en) * 2012-09-11 2014-01-16 주식회사 에스엘 서봉 Automotive lamp
KR20200034476A (en) * 2018-09-21 2020-03-31 에스엘 주식회사 lamp for vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101344428B1 (en) * 2012-09-11 2014-01-16 주식회사 에스엘 서봉 Automotive lamp
KR20200034476A (en) * 2018-09-21 2020-03-31 에스엘 주식회사 lamp for vehicle

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