KR20110043348A - Head lamp device - Google Patents

Head lamp device Download PDF

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Publication number
KR20110043348A
KR20110043348A KR1020090100424A KR20090100424A KR20110043348A KR 20110043348 A KR20110043348 A KR 20110043348A KR 1020090100424 A KR1020090100424 A KR 1020090100424A KR 20090100424 A KR20090100424 A KR 20090100424A KR 20110043348 A KR20110043348 A KR 20110043348A
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KR
South Korea
Prior art keywords
unit
light
display unit
light source
display
Prior art date
Application number
KR1020090100424A
Other languages
Korean (ko)
Inventor
조상희
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 KR1020090100424A priority Critical patent/KR20110043348A/en
Publication of KR20110043348A publication Critical patent/KR20110043348A/en

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    • 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
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/63—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates
    • F21S41/64—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates by changing their light transmissivity, e.g. by liquid crystal or electrochromic devices
    • F21S41/645—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates by changing their light transmissivity, e.g. by liquid crystal or electrochromic devices by electro-optic means, e.g. liquid crystal or electrochromic devices

Abstract

Disclosed is a headlamp device. The disclosed headlamp apparatus includes: a display unit which is spaced apart from the light source unit and connected to a display unit and a display unit in which a display area of the light transmitting unit and the light blocking unit is varied according to a pattern of the beam, and which controls the display area of the light transmitting unit and the light blocking unit. Characterized in that. According to the present invention, since the beam pattern is formed in accordance with various driving environments, the driver can securely operate the vehicle even in rainy weather.

Description

Head Lamp Unit {HEAD LAMP DEVICE}

The present invention relates to a headlamp device, and more particularly, to a headlamp device in which a display unit having a variable display area of a light transmitting unit and a light blocking unit is varied in front of a light source unit.

In general, a head lamp, also known as a headlamp, is a lamp that functions to shine a path forward in a vehicle, and requires a brightness to identify an obstacle on a road at a distance of 100 m at night.

A light source unit emitting light is provided inside the head lamp, and the light generated from the light source unit is reflected by the reflecting unit and then irradiated outward through the lens unit.

A shield unit is installed between the reflecting unit and the lens unit to change the beam pattern of the headlamp according to the change of the driving environment including city driving or highway driving.

The shield part is connected to the step motor and rotates to shield a part of the light irradiated toward the lens part to form a beam pattern.

Since the head lamp requires a separate shield member for the beam pattern shape of the rainy mode, the structure is complicated.

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 conventional shield part has only a limited number of beam patterns and cannot form a beam pattern for various driving environments, thus causing difficulty in securing a driver's field of vision, thus preventing the safe driving. In addition, maintenance work is required due to the continuous use of the shield and operation noise is also increased. Therefore, there is a need for improvement.

The present invention has been made by the necessity as described above, and an object thereof is to provide a head lamp device capable of providing various beam patterns suitable for various driving environments.

It is also an object of the present invention to provide a head lamp device that can reduce operating noise while reducing maintenance costs.

The headlamp device according to the present invention includes: a pattern spaced apart from a light source unit and connected to a display unit and a display unit in which a display area of the light transmitting unit and the light blocking unit is varied according to a beam pattern, and controlling a display area of the light transmitting unit and the light blocking unit. It includes a control unit.

In addition, the display unit, the liquid crystal member is arranged in contact with both sides of the liquid crystal member and the arrangement of the molecules in accordance with the change of the voltage, it is preferable to include a light transmitting material electrode member connected to the pattern control unit and supplied with power.

In addition, the electrode member preferably comprises carbon nanotubes.

In addition, the display unit preferably includes a transparent support member installed in contact with the outside of the electrode member.

In addition, the display unit is preferably provided between the light source unit and the lens unit for refracting the light emitted from the light source unit.

In addition, the display unit is preferably provided on one side of the lens unit facing the light source unit.

Since the headlamp device according to the present invention forms a beam pattern for various driving environments, the driver can securely operate the vehicle even when it is rainy and drive safely.

In the head lamp device according to the present invention, the beam pattern is displayed on the display unit, thereby reducing the cost of reducing parts, and improving the operation durability, thereby reducing the maintenance cost.

The headlamp device according to the present invention displays the light transmitting part and the light blocking part on the display unit without the operation of the mechanical device for forming the beam pattern, thereby reducing operating noise.

Hereinafter, an embodiment of a headlamp device according to the present invention will be described with reference to the accompanying drawings. For convenience of explanation, the headlamp device provided in the vehicle will be described as an example. 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, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout the specification.

1 is a side cross-sectional view schematically showing a headlamp device according to an embodiment of the present invention, Figure 2 is a side cross-sectional view showing the main configuration of the display unit according to an embodiment of the present invention, Figure 3 is a present invention 4 is a side cross-sectional view illustrating a state in which light passes through a light transmitting unit according to an embodiment of the present invention, and FIG. 4 is a front view illustrating a light transmitting unit and a light blocking unit displayed on the display unit according to an embodiment of the present invention. 5 is a side cross-sectional view schematically showing a head lamp device according to another embodiment of the present invention.

As shown in FIG. 1, the headlamp device 1 according to the exemplary embodiment of the present invention is provided to be spaced apart from the light source unit 12, and according to the pattern of the beam, the light transmitting unit 22 and the light blocking unit 24 may be formed. And a pattern controller 40 connected to the display unit 20 and the display unit 20 having a variable display area, and controlling the display area of the light transmitting unit 22 and the light blocking unit 24.

The housing part 10 may be formed in various shapes within the technical idea of forming the body of the headlamp device 1, and the lens part 14 is provided at one side of the housing part 10 according to an embodiment. The reflection part 16 is provided in the side.

The lens unit 14 has one side surface facing the light source unit 12 in a planar shape, and the other side toward the outside is formed in a convex shape.

The reflective part 16 facing the lens part 14 may be used in various shapes and materials within a technical concept of reflecting light generated from the light source part 12 in the direction of the lens part 14.

The reflector 16 according to the exemplary embodiment is formed in a concave shape toward the lens unit 14, and aluminum is vacuum deposited in a thin film shape inside the reflector 16.

As the light source unit 12 installed inside the reflector 16, various kinds of light source devices may be used within the technical concept of supplying light necessary for light distribution of the headlamp device 1.

The display unit 20 may use a transparent image device having various shapes in a technical concept in which light generated from the light source unit 12 passes through the display unit 20, which is a transparent image device, to form a pattern of a beam.

As shown in FIG. 1 and FIG. 2, the display unit 20 according to an exemplary embodiment is provided in contact with both side surfaces of the liquid crystal member 26 and the liquid crystal member 26 in which the arrangement of molecules changes according to a change in voltage. And an electrode member 28 of a light transmissive material connected to the pattern control unit 40 to receive power.

The liquid crystal member 26 is a material in an intermediate state between a liquid and a crystal and exhibits optical properties according to a change in voltage.

Both sides of the liquid crystal member 26 are provided in contact with the electrode member 28, the outer side of the electrode member 28 is provided in contact with the transparent support member 30 for supporting the structure.

The electrode member 28 includes carbon nanotubes in which hexagons made of six carbons are connected to each other to form a tubular shape.

Carbon nanotubes have a diameter of about one hundred thousandth the diameter of the hair, and their electrical conductivity is similar to that of copper.

The electrode member 28 includes a transparent plate-like member provided with carbon nanotubes, and since the carbon nanotubes are thin, the loss of light passing through the electrode member 28 can be minimized.

The electrode member 28 is connected to the pattern control unit 40 and is supplied with power through the pattern control unit 40.

As shown in FIGS. 1 to 4, the liquid crystal member 26 reacts with the power supplied to the electrode member 28 through the pattern control unit 40 to prevent light from passing through the light transmitting unit 22 through which the light passes. The light blocking portion 24 is not formed.

The display area of the light transmitting part 22 and the light blocking part 24 formed in the liquid crystal member 26 is variable according to a driving environment. The display areas of the light transmitting unit 22 and the light blocking unit 24 are controlled by the pattern control unit 40 connected to various sensors.

In the technical concept of maintaining the bonding state between the liquid crystal member 26 and the electrode member 28, the transparent support member 30 installed on the outside of the electrode member 28 has a light transmissive property including thermally strengthened glass that does not expand even when the temperature rises. It is made of material.

The display unit 20 is provided between the light source unit 12 and the lens unit 14 that refracts the light emitted from the light source unit 12 to form a beam pattern.

The display unit 20 according to an embodiment is installed near the optical focus located at the center of the light source unit 12 and the lens unit 14.

The optical focus is a point where light emitted from the light source unit 12 is reflected by the reflector 16 and then converges in front of the light source unit 12 (the left side of FIG. 1).

Since the display unit 20 is installed near the optical focus located between the lens unit 14 and the light source unit 12, the size of the display unit 20 can be reduced in size, thereby reducing the production cost.

As shown in FIG. 1 and FIG. 4, a light blocking unit 24 through which light is not transmitted is provided below the display unit 20, and the light transmitting unit 22 is disposed in the middle of the light blocking unit 24. The portion that is not changed may be installed without the display unit 20 and the partition member 35 may reduce the size of the display unit 20.

The partition member 35 is installed below the display unit 20 and has various shapes and operating states, such as being installed in a fixed state or installed in a rotatable state.

As shown in FIG. 2 and FIG. 3, the pattern control unit 40 connected to the display unit 20 to control the electrode member 28 is connected to various sensor units to input information according to an operating environment.

The pattern control unit 40 receives information such as weather information such as rainy weather or clear weather, and various types of sensors and navigation such as GPS, an optical sensor, and a raindrop sensor on a curved road or downtown, and displays the display unit 20. The display areas of the light transmitting portion 22 and the light blocking portion 24 are varied.

Hereinafter, with reference to the accompanying drawings will be described in detail the operating state of the headlamp device 1 according to an embodiment of the present invention.

1 to 4, light generated by the light source unit 12 is irradiated toward the display unit 20 after being reflected by the reflector 16.

The light irradiated toward the display unit 20 is divided into a portion through which the light is blocked by the light blocking unit 24 and the light transmitting unit 22 displayed on the display unit 20.

The light passing through the display unit 20 passes through the lens unit 14 and irradiates to the outside of the vehicle to form a beam pattern suitable for a driving environment.

As shown in FIG. 5, the display unit 21 according to another exemplary embodiment of the present invention is installed on one side of the lens unit 14 facing the light source unit 12.

One side of the lens unit 14 may be formed in a flat shape, and the display unit 21 may be installed to be in contact with one side of the lens unit 14, and may be installed to be spaced apart from the lens unit 14. Various modifications are possible.

When the display unit 21 is installed in contact with the lens unit 14, the configuration of the transparent support member 30 installed in the direction in contact with the lens unit 14 may be omitted, thereby reducing the production cost.

According to the configuration as described above, the head lamp device 1 according to an embodiment forms a beam pattern to suit a variety of driving environment, the driver can secure the field of view even in rainy weather and can drive safely.

In addition, since the beam pattern is displayed on the display unit 20, the cost of reducing parts can be reduced, and operation durability is also improved, thereby reducing maintenance costs.

In addition, since the light transmitting unit 22 and the light blocking unit 24 are displayed on the display unit 20 without the operation of the mechanical device for forming the beam pattern, the operation noise may be reduced.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and those skilled in the art to which the art belongs can make various modifications and other equivalent embodiments therefrom. I will understand.

In addition, the headlamp device provided in the vehicle has been described as an example, but this is merely exemplary, and the headlamp device of the present invention may be used in construction equipment or other driving equipment or mobile equipment in addition to the automobile.

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

1 is a side cross-sectional view schematically showing a head lamp device according to an embodiment of the present invention.

2 is a side cross-sectional view illustrating a main part of a display unit according to an exemplary embodiment of the present invention.

3 is a side cross-sectional view illustrating a state in which light passes through a light transmitting unit of a display unit according to an exemplary embodiment of the present invention.

4 is a front view illustrating a light transmitting unit and a light blocking unit displayed on a display unit according to an exemplary embodiment of the present invention.

Figure 5 is a side cross-sectional view schematically showing a head lamp device according to another embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

1: headlamp device 10: housing part

12: light source unit 14: lens unit

20, 21: display unit 22: light transmitting unit

24: light shield 26: liquid crystal member

28: electrode member 30: transparent support member

35: partition member 40: pattern control unit

Claims (6)

A display unit spaced apart from the light source unit and configured to vary a display area of the light transmitting unit and the light blocking unit according to a beam pattern; And And a pattern control unit connected to the display unit and controlling a display area of the light transmitting unit and the light blocking unit. The method of claim 1, wherein the display unit, A liquid crystal member in which an arrangement of molecules changes according to a change in voltage; And The headlamp device is installed in contact with both sides of the liquid crystal member, and connected to the pattern control unit comprising a light transmitting material electrode member for receiving power. The method of claim 2, The electrode member is a head lamp device comprising a carbon nanotube. The method of claim 2, The display unit headlamp device, characterized in that it comprises a transparent support member which is installed in contact with the outside of the electrode member. The method according to any one of claims 1 to 4, And the display unit is disposed between the light source unit and a lens unit that refracts light emitted from the light source unit. The method according to any one of claims 1 to 4, The display unit headlamp apparatus, characterized in that provided on one side of the lens unit facing the light source.
KR1020090100424A 2009-10-21 2009-10-21 Head lamp device KR20110043348A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020090100424A KR20110043348A (en) 2009-10-21 2009-10-21 Head lamp device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020090100424A KR20110043348A (en) 2009-10-21 2009-10-21 Head lamp device

Publications (1)

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KR20110043348A true KR20110043348A (en) 2011-04-27

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KR1020090100424A KR20110043348A (en) 2009-10-21 2009-10-21 Head lamp device

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160026423A (en) * 2014-09-01 2016-03-09 현대모비스 주식회사 Head lamp of vehicle
AT519123A4 (en) * 2016-12-12 2018-04-15 Zkw Group Gmbh Motor vehicle headlight with at least one light source
US10047925B2 (en) 2015-06-24 2018-08-14 Lg Electronics Inc. Headlamp for vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160026423A (en) * 2014-09-01 2016-03-09 현대모비스 주식회사 Head lamp of vehicle
US10047925B2 (en) 2015-06-24 2018-08-14 Lg Electronics Inc. Headlamp for vehicle
AT519123A4 (en) * 2016-12-12 2018-04-15 Zkw Group Gmbh Motor vehicle headlight with at least one light source
AT519123B1 (en) * 2016-12-12 2018-04-15 Zkw Group Gmbh Motor vehicle headlight with at least one light source

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