KR20240168695A - Structure of miniaturized optical device with high beam and low beam fuctions - Google Patents

Abstract

According to one embodiment of the present invention, a lighting device having an up-down light function comprises: an LED module in which a plurality of LEDs having preset shapes are combined in a square shape; a reflector module in which the LED module is combined at an upper portion and a reflector is provided to reflect light emitted from the LED module downward from the upper portion forward, wherein some of the plurality of LEDs constituting the LED module are turned on, and as the positions of the LEDs being turned on change, the reflector module is configured to reflect light upwardly forward or downwardly forward.

Description

{STRUCTURE OF MINIATURIZED OPTICAL DEVICE WITH HIGH BEAM AND LOW BEAM FUCTIONS}

The present invention relates to the structure of an optical device having the functions of high beam and low beam. Specifically, it is intended to enable the optical device to have the function of displaying high beam, low beam, or a specific signal with light even if the optical device has a simple structure.

As unmanned robots and mobility technologies advance, the spread of many related robots and devices is expected. However, the above technologies have common and fundamental problems.

A typical problem is safety. This is a problem that occurs because unmanned robots or technologies related to mobility involve moving objects and collisions between other objects, and this risk increases more at night when visibility is narrower than during the day.

Accordingly, existing robots or mobility vehicles are equipped with headlights (lighting devices) that can illuminate the front during nighttime hours. However, existing headlights only have the function of irradiating a light source, so in order to have various functions such as high beams or low beams, multiple headlights must be equipped accordingly.

On the other hand, in order to generate various light sources from a single headlight, a complex structure had to be used in the past, and headlights with complex structures have the disadvantages of low energy efficiency and being difficult or expensive to produce.

Accordingly, there is a need for a lighting device having a simple structure while being able to investigate the various types of light sources mentioned above.

In order to solve the above-mentioned problem, the present invention requires a structure of a lighting device that has a simple structure but can irradiate various types of light sources such as upward or downward lights.

In addition, conventional means of transportation with simple structures such as bicycles or personal mobility devices are not equipped with high or low beam functions. As the number of bicycle and motorcycle users increases, there may be a need for installation of high or low beams to meet the diverse needs of users and to prevent bicycle accidents.

In the case of automobiles, the lighting device may have a function to rotate in accordance with the direction of travel, or a function to control the LED by turning it on/off, and in most cases, it is implemented in a way that the LED control or up/down light module is equipped in advance through a specific structure. However, applying this structure to the lighting of bicycles or motorcycles in the same way increases the cost and reduces the competitiveness of the product.

Therefore, the present invention aims to simply implement the high beam and low beam of a bicycle lighting device without a motor at a minimum cost. In addition, since hearing-impaired people may not hear the bicycle alarm sound in an emergency and the alarm sound may startle other people around, a cyclist can send a warning signal to people in front to be careful of bicycles by repeatedly turning on the high beam and low beam.

According to one embodiment of the present invention for achieving the technical task described above, a lighting device having an up/down light function comprises: an LED module in which a plurality of LEDs having a preset shape are combined in a preset shape; a reflector module to which the LED modules are combined and which is provided with a reflector to reflect light of the LED module forward, wherein some of the plurality of LEDs constituting the LED module are turned on, and as the positions of the LEDs being turned on change, the reflector module can reflect light upwardly or downwardly.

In addition, the LED module is arranged in a grid shape with multiple rows of LEDs, and light corresponding to high beam can be emitted forward as one area of the entire area of the LEDs emits light, or light corresponding to low beam can be emitted forward as another area of the entire area of the LEDs emits light.

Additionally, the LEDs are arranged in a grid shape so as to have an odd number of rows, and the center row is always lit, and can emit light in the form of high beams or low beams depending on which of the LEDs in the rows on either side of the center row is lit together.

Additionally, the LED modules are arranged in a grid shape with multiple rows of LEDs, and the LEDs at specific locations can be illuminated to create a preset light pattern.

In addition, the LED module is placed on top of the reflector module, and the reflector is formed at an acute angle with the upper surface, but can be placed to have a surface curved at a predetermined curvature.

In addition, the reflector module may be configured with an LED coupling portion configured in a predetermined plate shape and provided with a slide hole corresponding to the shape of the LED module so that the LED module can be slidably fitted in one area; a sensor coupling portion configured in a predetermined plate shape provided parallel to the LED coupling portion and coupled with an illuminance sensor module in one area; and a reflection portion configured such that one side is coupled to the LED coupling portion and the other side is coupled to the sensor coupling portion to form the reflector module in a Z-structure, and a reflector plate is formed on a surface facing the LED coupling portion.

In addition, a pinhole tube having a cylindrical hole shape that guides a sensing area of the light sensor module is further provided, each of which is coupled to the sensor coupling unit and the light sensor module, and the pinhole tube can be provided such that the hole faces the front of the lighting device.

Additionally, the pinhole tube can be coupled to the sensor coupling portion so that the height of the hole located at the front is lower than the height of the hole located at the rear.

Additionally, a housing coupled to the front of the reflector module may be further included, and the housing may include an opening so that light reflected from the reflector module may be emitted forward.

In addition, an operation module for turning on/off each LED constituting the LED module by being connected to the LED module is further included, and the LED at a preset position constituting each LED module can be turned on by the operation module.

In addition, by manipulating the manipulation module, at least one of the plurality of LEDs can perform at least one of the processes of lighting, turning off, and changing brightness according to a preset pattern.

In addition, an obstacle recognition sensor module for recognizing an obstacle located in front of the lighting device; and a control module connected to the obstacle recognition sensor module and the LED module for controlling the lighting of the LED when the obstacle is recognized may be further included. Obstacle recognition can be performed through various sensors such as an infrared sensor and an ultrasonic sensor.

In addition, the control module can determine the direction in which an obstacle is recognized based on the front of the lighting device, and automatically turn the high and low beams on and off alternately in the direction corresponding to the direction in which the obstacle is recognized.

According to one embodiment of the present invention, a lighting device such as an up light or a down light can be implemented while having a simple structure.

In addition, through the lighting device implemented through the present invention, it is possible to generate various receiving signals consisting of combinations of LED light sources, not just simple high beams or low beams. For example, the function of a blinker can be performed by turning on or blinking only the left LED or the right LED of an LED module consisting of multiple LEDs, and as the number of arranged LEDs increases, a combination of light sources moving left and right or only a specific location can be strongly irradiated.

In addition, the lighting device has high energy efficiency, so it can be used in mobility devices such as bicycles and kickboards, and its simple structure allows for mass production at low cost.

In addition, conventional means of transportation with simple structures such as bicycles do not have high or low beam functions. In a situation where the number of bicycle and motorcycle users is increasing, the need for installation of high or low beams can be met to meet the diverse needs of users and to prevent bicycle accidents.

In the case of automobiles, high beams and low beams are installed, and the lighting devices are implemented so that they can look ahead even when the direction of travel of the vehicle changes due to the operation of the motor connected to all lighting devices. However, applying this structure to the lighting of bicycles or motorcycles can solve the problem of increased costs and decreased product competitiveness.

Therefore, the present invention can simply implement the high beam and low beam of a bicycle lighting device without a motor at a minimum cost. In addition, since hearing-impaired people may not hear the bicycle alarm sound in an emergency and the alarm sound may startle other people around, a cyclist can send a warning signal to people in front to be careful of bicycles by repeatedly turning on the high beam and low beam.

FIG. 1a is a drawing showing the external appearance of a headlight according to one embodiment of the present invention.
FIG. 1b is a cross-sectional view of a headlight according to one embodiment of the present invention.
FIG. 2 is an exploded view of a lighting device according to one embodiment of the present invention.
FIG. 3 is a drawing illustrating a reflector module according to one embodiment of the present invention.
FIG. 4 is a drawing illustrating a combined appearance of an LED module and a reflector module according to one embodiment of the present invention.
FIG. 5 is a drawing illustrating an LED module according to one embodiment of the present invention.
FIGS. 6 and 7 are drawings showing examples of actually implemented lighting devices according to one embodiment of the present invention.

Hereinafter, with reference to the attached drawings, embodiments of the present invention will be described in detail so that those skilled in the art can easily practice the present invention. However, the present invention may be implemented in various different forms and is not limited to the embodiments described herein. In addition, in order to clearly describe the present invention in the drawings, parts that are not related to the description are omitted, and similar parts are assigned similar drawing reference numerals throughout the specification.

Throughout the specification, when a part is said to be "connected" to another part, this includes not only the case where it is "directly connected" but also the case where it is "electrically connected" with another element in between. Also, when a part is said to "include" a component, this should be understood to mean that it may further include other components, unless specifically stated to the contrary, and does not preclude the presence or possibility of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

The following examples are detailed descriptions to help understand the present invention and do not limit the scope of the present invention. Therefore, inventions of the same scope that perform the same function as the present invention will also fall within the scope of the present invention.

FIG. 1a is a drawing showing the external appearance of a headlight (10) according to one embodiment of the present invention.

FIG. 1b is a cross-sectional view of a headlight (10) according to one embodiment of the present invention.

At this time, in Fig. 1a, the headlight (10) is depicted as having a cylindrical shape (which is depicted as having a shape similar to a conventional CCTV). However, since the appearance of the headlight (10) to be implemented through the present invention can be freely manufactured, it does not limit the scope of the present invention. At this time, a lighting device (100) for irradiating light may be provided inside the headlight (10).

FIG. 2 is an exploded view of a lighting device according to one embodiment of the present invention.

Referring to FIG. 2, the lighting device (100) may be composed of an LED module (110), a reflector module (120), and a light sensor module (130), and may further include a heat sink (140), a housing (150), and a pinhole barrel (160) to assemble the above modules.

According to one embodiment of the present invention, the LED module (110) may be a module in which a plurality of LEDs (111) having a preset shape are combined in a square shape.

At this time, the LED (111) is a light emitting diode, which is a device that converts current into light, and the LED (111) in the present invention can be implemented in a square plate shape. For example, the LED that can be used in the present invention can be a type of CSP LED without a lens. However, since the LED used in implementing the invention can be replaced with another material that emits light, the type of LED does not limit the scope of the invention. Accordingly, since the LED module (110) must be formed by combining a plurality of LEDs (110) to have a square shape, at least four LEDs (110) may be required. In addition, since the color of the LED (111) can be applied in various colors depending on the situation in which the lighting device (100) can be used, the color or shape of the LED module (110) does not limit the scope of the present invention.

According to one embodiment of the present invention, the illuminance sensor module (130) may be a module for measuring the illuminance of light irradiated from the LED module (110). However, as an optional embodiment, the illuminance sensor module (130) may be excluded from the configuration.

According to one embodiment of the present invention, an LED module (110) and a light sensor module (130) may be respectively coupled to a reflector module (120). At this time, the reflector module (120) may be configured such that the LED module (110) is coupled to the upper portion and a reflector is provided so that light emitted from the LED module (110) downward from the upper portion is reflected forward.

For example, the LED module (110) may be placed flat on the upper part of the reflector module (120), and the reflector may be formed at an acute angle with the upper surface, but may be placed to have a surface curved at a predetermined curvature.

Additionally, a light sensor module (130) coupled to the reflector module (120) may be configured to measure the light intensity of the light distribution area (210).

Accordingly, some of the plurality of LEDs (111) constituting the LED module (110) are turned on, and as the positions of the turned-on LEDs (111) change, the reflector module (120) can reflect light in an upward direction forward or in a downward direction forward. In an optional embodiment, the reflector module (120) may be provided with an additional reflector to reflect light to a specific position, such as the left or right side of the front.

According to one embodiment of the present invention, the heat sink (140) may be a module that is combined with an LED module (110) and discharges heat generated according to the operation of the LED module (110).

At this time, the heat sink (140) can be implemented as an air-cooled type for the implementation of a simple structure, and can be formed of an aluminum alloy to allow smooth heat dissipation, and a plurality of heat sink fins can be formed on the outer surface.

In the drawing, the heat sink (140) is depicted as having a structure that surrounds the LED module (110) and the reflector module (120), but in the actual manufacturing process, it may be formed as a structure that is attached only to the back of the LED module (110) where heat is generated.

According to one embodiment of the present invention, the housing (150) may correspond to a cover for protecting the exterior of the lighting device (100). In the drawing, it is formed as a structure attached to the front and rear of the LED module (110) and the reflector module (120), respectively, but as an optional embodiment, it may be implemented as a protective structure that surrounds the entire lighting device (100).

Additionally, the housing (150) coupled to the front may include an opening so that light reflected from the reflector module (120) can be emitted forward.

According to one embodiment of the present invention, the pinhole lens (160) may be a module that is coupled to the reflector module (120) and the light sensor module (130), respectively, and guides the sensing area of the light sensor.

At this time, as an optional embodiment, the pinhole tube (160) may be excluded, and a portion of the reflector module (120) to which the light sensor module (130) is coupled may be configured in a cylindrical shape to guide the sensing area of the light sensor.

FIG. 3 is a drawing illustrating a reflector module (120) according to one embodiment of the present invention.

FIG. 4 is a drawing illustrating a combined appearance of an LED module (110) and a reflector module (120) according to one embodiment of the present invention.

Referring to FIG. 3, the reflector module (120) may be composed of an LED coupling part (121), a reflective part (122), and a sensor coupling part (123).

First, the LED coupling part (121) may be configured in a predetermined plate shape, and a slide hole corresponding to the shape of the LED module (110) may be provided in one area so that the LED module (110) can be slidably inserted.

For example, as shown in FIG. 4, the LED module (110) may be coupled with the LED coupling part (121) of the reflector module (120), and the area where the light of the LED module (110) is emitted may be mounted so that it faces the inside (bottom) of the reflector module (120).

Next, the sensor coupling part (123) is configured in a predetermined plate shape that is provided parallel to the LED coupling part (121), and can be formed in a structure that is coupled with a light sensor module (130) in one area. At this time, the light sensor module (130) can be attached to the sensor coupling part (123) so that the sensor faces forward.

In addition, the pinhole tube (160) described above may be combined with the sensor coupling unit (123). Specifically, the pinhole tube (160) has a cylindrical hole shape and may be combined with the sensor coupling unit (123) and the light sensor module (130), respectively, to guide the sensing area of the light sensor module (130). At this time, the pinhole tube (160) may be provided so that the hole faces the front of the lighting device (100).

At this time, the pinhole tube (160) is coupled with the sensor coupling part (123) so that the height of the hole located in the front is lower than the height of the hole located in the rear, thereby guiding the sensing area of the light sensor module (130) to face the ground.

Next, the reflector (122) can be formed into a Z-shaped structure by having one side coupled with the LED coupling part (121) and the other side coupled with the sensor coupling part (123).

In addition, the reflector (122) has a reflector formed on the surface facing the LED coupling unit (110), so that light emitted from the LED coupling unit (110) can be reflected toward the front of the lighting device (100).

At this time, as described above, the reflector (122) is formed by being concavely bent so that the reflector has a predetermined curvature, thereby effectively irradiating light forward.

FIG. 5 is a drawing illustrating an LED module (110) according to one embodiment of the present invention.

Referring to Fig. 5, the LED module (110) may be provided in a square shape in order to be slidably coupled to the reflector module (120). Accordingly, the LED (111) may also be formed in a square shape in order to form the LED module (110) in a square shape.

Specifically, the LED module (110) may be arranged in a grid shape with the LEDs (111) having multiple rows. Based on this structure, the LED module (110) may emit light corresponding to high beams forward when one region of the entire area of the LEDs (111) emits light, or may emit light corresponding to low beams forward when another region of the entire area of the LEDs (111) emits light. Here, the LEDs (111) are arranged in a grid shape so as to have an odd number of rows, and the middle row may always be lit, and may emit light in the form of high beams or low beams depending on which of the LEDs in the rows on either side of the middle row is lit together. For example, when four LEDs (111) located in the middle row and the lower row among six LEDs (111) as in drawing (a) of FIG. 6 are lit, light may be formed in the form of high beams as in drawing (b). Conversely, when four LEDs (111) located in the middle row and the upper row among six LEDs (111) as in Figure 7 (a) are turned on, light can be formed in the form of downward light as in Figure (b). As an optional embodiment, the LED module (110) may be arranged in a grid shape with multiple rows of LEDs (111), and a preset light shape may be generated by emitting light from an LED (111) at a specific position.

Meanwhile, the lighting device (100) may further include an operation module for turning on/off each LED (111) that is connected to the LED module (110) and constitutes the LED module (110). Accordingly, the lighting device (100) can light the LED (111) at a preset position that constitutes the LED module (110) by operating the operation module. Based on this function, at least one of the plurality of LEDs (111) can perform at least one process of turning on, turning off, and changing brightness according to a preset pattern by operating the operation module. In an optional embodiment, if the LEDs (111) are turned on and off or change brightness according to a preset pattern, a receiving signal according to the pattern can be formed and used. Accordingly, the LED (111) can form various signals not only by simply blinking, but also by changing the blinking time, pattern, color, etc. For example, if an LED module (110) is configured with nine LEDs (111) in a square shape, if the LEDs (111) in the center and the columns to the left of the center blink, it can perform the role of a left blinker, and if the LEDs (111) blink quickly in sequence from the left to the right, it can also provide a warning to the opponent in front.

Meanwhile, the lighting device (100) may further be equipped with an obstacle recognition sensor module for recognizing an obstacle located in front of the lighting device (100). At the same time, the lighting device (100) may also be equipped with a control module connected to the obstacle recognition sensor module and the LED module (110) to control the lighting of the LED (111) when recognizing an obstacle.

Through this, the control module of the lighting device (100) can determine the direction in which the obstacle is recognized based on the front of the lighting device (100), and automatically turn the high beam and low beam on and off alternately in the direction corresponding to the direction in which the obstacle is recognized. Through this, the headlight (10) can recognize an obstacle that the user of the headlight (10) does not recognize, and then irradiate strong light on the obstacle, thereby warning the target or helping to recognize the obstacle.

The above description of the present invention is for illustrative purposes, and those skilled in the art will understand that the present invention can be easily modified into other specific forms without changing the technical idea or essential features of the present invention. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive. For example, each component described as a single component may be implemented in a distributed manner, and likewise, components described as distributed may be implemented in a combined manner.

The scope of the present invention is indicated by the claims described below rather than the detailed description above, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present invention.

10: Headlights
100: Lighting Device
110: LED module 111: LED
120: Reflector module 121: LED coupling part
122: Reflector 123: Sensor coupling
130: Light sensor module 140: Heat sink
150: Housing 160: Pinhole barrel
210: Light distribution area 220: Sensing area

Claims (10)

In a lighting device having an up/down light function,
An LED module in which a plurality of LEDs having a preset shape are combined in a preset shape;
The above LED module is combined and includes a reflector module equipped with a reflector to reflect light from the LED module forward.
A lighting device having an up/down light function, wherein some of the plurality of LEDs constituting the LED module are turned on, and as the positions of the LEDs being turned on change, the reflector module reflects light upwardly or downwardly. In paragraph 1,
The above LED module is a lighting device having an up/down light function, wherein the LEDs are arranged in a grid shape having multiple rows, and light corresponding to high beams is emitted forward when one area of the entire area of the LEDs emits light, or light corresponding to low beams is emitted forward when another area of the entire area of the LEDs emits light. In the second paragraph,
A lighting device having an up/down light function, wherein the LEDs are arranged in a grid shape so as to have an odd number of rows, and the center row is always lit, and emits light in the form of an up light or down light depending on which of the LEDs in the rows on either side of the center row is lit together. In the second paragraph,
The above LED module is a lighting device having an up/down function, in which the LEDs are arranged in a grid shape with multiple rows and the LEDs at specific locations emit light to generate a preset light pattern. In paragraph 1,
A lighting device having an upper and lower light function, wherein the LED module is arranged on the upper surface of the reflector module, and the reflector is formed to form an acute angle with the upper surface, but is arranged to have a surface curved at a predetermined curvature. In paragraph 1,
A lighting device having an up/down light function, further comprising a housing coupled to the front of the reflector module, the housing including an opening so that light reflected from the reflector module can be emitted forward. In paragraph 1,
An operation module for turning on/off each LED that is connected to the LED module and constitutes the LED module is further included.
A lighting device having an up/down function, wherein the LEDs at preset positions constituting each of the LED modules are lit by the above operation module. In paragraph 7,
A lighting device having an up/down function, wherein at least one of the plurality of LEDs performs at least one of lighting, turning off, and changing brightness according to a preset pattern through operation of the above operation module. In paragraph 1,
An obstacle recognition sensor module for recognizing an obstacle located in front of the lighting device; and
A lighting device having an up/down light function, further comprising a control module connected to the obstacle recognition sensor module and the LED module to control the lighting of the LED when the obstacle is recognized. In Article 9,
A lighting device having an up/down beam function, wherein the control module determines the direction in which the obstacle is recognized based on the front of the lighting device, and automatically turns the high beam and low beam alternately on and off in the direction corresponding to the direction in which the obstacle is recognized.

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