KR20210059893A - Optical lens for guiding road gaze and device for guiding road gaze using the same - Google Patents

Abstract

Disclosed are an optical system for inducing a road gaze and a road gaze guidance device using the same. The present invention can meet the light intensity standard of road signs, and provide a driver with a linear guidance function of a road. The present invention includes a body portion (110); an incident unit (120); and an emission unit (130).

Description

Road gaze guidance optical system and road gaze guidance device using the same {OPTICAL LENS FOR GUIDING ROAD GAZE AND DEVICE FOR GUIDING ROAD GAZE USING THE SAME}

The present invention relates to a road gaze guidance optical system and a road gaze guidance device using the same, and more particularly, a road gaze guidance optical system that satisfies the luminous intensity standard of a road marker that provides a linear guidance function of the road to the driver, and using the same. It relates to a road gaze guidance device.

In general, road markers are installed on the center line of the road or on the lanes of divided roads, and the reflector reflects light during the day as well as at night so that the driver can clearly identify the division lines of the road, thereby inducing the role and function of safe driving. do.

These road markers are inserted and fixed at regular intervals along the divided lanes of the paved road.

Here, in the reflective road marker, the driver recognizes the road marker by reflecting the light as it is to the driver using a reflector only when the light from the vehicle headlight is incident.

However, in the case of such a reflective road marker, since the brightness of the reflected light is determined according to the brightness of the incident light, there is a problem that the function as a road marker is lost when the headlamp of the vehicle is broken or the headlamp is low in brightness.

In order to solve the problem of such a reflective road sign, recently, a light-emitting road sign has been used that allows the driver to recognize the road sign by emitting light using a light source such as an LED.

Since the luminescent road marker always outputs light of a constant brightness, there is an advantage that the driver can easily check the road marker through the light of the road marker when there is no light around it or when viewing from a distance.

However, the current lighting used as a road sign is used to indicate the alignment of the road with white and yellow lights, but the luminous intensity standards for each angle specified as shown in Table 1 in the "Road Safety Facility Installation and Management Guidelines" and Table 2 There is a problem in that it does not satisfy the light distribution distribution specified as described above.

Measuring angle Reference value (cd) Vertical angle Horizontal angle White yellow
0.2° 0° 60 36 ±20° 12 8 0.3° ±5° 54 33 1° ±10° 21 13 2° ±15° 18 11

Horizontal angle
Upward vertical angle
-20°
-10°
0°
10°
20° 0.2° 0.1 0.5 One 0.5 0.1 10° 0.08 0.3 0.5 0.3 0.08 20° 0.05 0.08 0.1 0.08 0.05

In addition, since the light-emitting road sign using an LED or the like has strong straightness of the light, when the driver directly sees the output light, there is a problem that the driver's view is obstructed.

Therefore, the road sign is installed in a place where there is a lot of risk of an accident or the road alignment is a curved road or a slope, and it is difficult to recognize the situation in front, but only information about the alignment can be recognized, and driving direction There is a problem that it is difficult to cope with the road environment generated from the front side.

Korean Registered Patent Publication No. 10-1415006 (Name of invention: road marker for improving visibility)

In order to solve this problem, an object of the present invention is to provide an optical system for guiding a road gaze that satisfies the luminous intensity standard of a road marker that provides a function of guiding a linear road to a driver, and a road gaze guiding device using the same.

In order to achieve the above object, an optical system for guiding a road line of sight according to an embodiment of the present invention includes: a body portion through which light is transmitted; An incidence part installed on one side of the body part and formed such that a part of an incidence surface on which light is incident has a certain angle inclination in the direction of light output; And an emission part installed on the other side of the body part and configured to form a random light distribution pattern and output the light transmitted through the incidence part.

In addition, the lenses according to the embodiment are characterized in that the array lenses are arranged at regular intervals.

In addition, the lens according to the embodiment may further include a fixing part formed in the direction of the incident part so that the light source part is fixed.

In addition, the fixing unit according to the embodiment is characterized in that it further includes a reflecting unit that reflects or refracts the light path to the incident unit on the inside of the bottom surface.

In addition, the incident unit according to the embodiment has a first incident unit and a second incident unit formed so that light is incident in a vertical direction, the first incident unit and the second incident unit, and have a certain angle inclination in the output direction of the light. And a third incident portion formed.

In addition, the first incident unit and the second incident unit according to the above embodiment are formed of a flat surface and a curved surface.

In addition, the second incident unit according to the embodiment is characterized in that a curved surface protruding in the direction of light output in a predetermined region of the first incident unit is formed.

In addition, the third incident unit according to the above embodiment is characterized in that it is made of a spherical or aspherical surface.

In addition, the second incident unit according to the embodiment is characterized in that it forms light distribution patterns that are irradiated to both sides of the lens in the horizontal direction.

In addition, the incident unit according to the embodiment is characterized in forming a light distribution pattern that is irradiated upward in the vertical direction of the lens centering on a boundary between the first incident unit and the second incident unit and the third incident unit.

In addition, a road gaze guidance device using an optical system for road gaze guidance according to an embodiment of the present invention includes a body through which light is transmitted, and is installed on one side of the body, and a part of the incident surface on which light is incident is output of light. An array lens in which a lens including an incidence part formed to have an inclination of a certain angle in a direction, and an emission part installed on the other side of the body part and allowing light transmitted through the incidence part to form and output an arbitrary light distribution pattern is arranged, A light source module unit having a light source unit for outputting light to the array lens; And a label for accommodating the light source module unit.

In addition, the light source unit according to the embodiment is characterized in that it outputs any one of white light, yellow light, and green light.

The present invention has the advantage of providing a driver with a linear guide function of a road, an optical system for guiding a road gaze that meets the luminous intensity standard of a road sign, and a road gaze guiding device using the same.

1 is a perspective view showing an optical system for guiding a road line of sight according to an embodiment of the present invention.
2 is a side cross-sectional view showing the structure of an optical system for guiding a road line of sight according to the embodiment of FIG. 1.
3 is a perspective view showing a shape of an incident part of an optical system for guiding a road line of sight according to the embodiment of FIG. 1.
4 is a side cross-sectional view showing a shape of an incident part of an optical system for guiding a road line of sight according to the embodiment of FIG. 1.
5 is a perspective view showing an array of an optical system for guiding a road line of sight according to the embodiment of FIG. 1.
6 is a perspective view showing a road gaze guidance device using an optical system for road gaze guidance according to an embodiment of the present invention.
7 is a side cross-sectional view showing the structure of a road gaze guidance device using an optical system for road gaze guidance according to the embodiment of FIG. 6.
FIG. 8 is an exploded perspective view showing the configuration of a road gaze guidance device using an optical system for road gaze guidance according to the embodiment of FIG. 6.
9 is a side cross-sectional view showing the structure of an optical module part of a road gaze guidance device using an optical system for road gaze guidance according to the embodiment of FIG. 6.
FIG. 10 is a perspective view showing the configuration of an optical module part of a road gaze guidance device using an optical system for road gaze guidance according to the embodiment of FIG. 6.
11 is an exemplary view showing a light distribution baton of a road gaze guidance device using an optical system for road gaze guidance according to the embodiment of FIG. 6.
12 is an exemplary view showing a light distribution of a road gaze guidance device using an optical system for road gaze guidance according to the embodiment of FIG. 6.

Hereinafter, a preferred embodiment of an optical system for guiding a road gaze and a device for guiding a road gaze using the same according to an exemplary embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Prior to describing specific details for the implementation of the present invention, it should be noted that configurations that are not directly related to the technical gist of the present invention have been omitted within the scope not disturbing the technical gist of the present invention.

In addition, terms or words used in the present specification and claims are meanings and concepts consistent with the technical idea of the invention based on the principle that the inventor can define the concept of an appropriate term to describe his invention in the best way. Should be interpreted as.

In the present specification, the expression that a certain part "includes" a certain component does not exclude other components, but means that other components may be further included.

In addition, terms such as "... unit", "... group", and "... module" mean units that process at least one function or operation, which can be classified into hardware, software, or a combination of the two.

In addition, the term'at least one' is defined as a term including the singular number and the plural number, and even if the term'at least one' does not exist, it is self-evident that each component may exist in the singular or plural, and may mean the singular or plural. Will do.

In addition, it will be said that each component is provided in a singular or plural number and may be changed according to embodiments.

1 is a perspective view showing a road gaze guidance optical system according to an embodiment of the present invention, FIG. 2 is a side cross-sectional view showing the structure of the road gaze guidance optical system according to the embodiment of FIG. 1, and FIG. A perspective view showing the shape of the incident part of the optical system for guiding the road gaze according to the embodiment, FIG. 4 is a side cross-sectional view showing the shape of the incident part of the optical system for guiding the road gaze according to the embodiment of FIG. 1, and FIG. It is a perspective view showing an array of optical systems for guiding a road line of sight according to an example.

As shown in FIGS. 1 to 5, the optical system for guiding the road gaze according to an embodiment of the present invention includes a body portion 110, an incidence portion 120, an emission portion 130, and a fixing portion 140. ) And a total reflection unit 150.

The body portion 110 is made of a transparent material to allow light to pass through, and polyimide (PI) resin, polyester (PET) resin, acrylic resin, polycarbonate (PC) resin, polymethyl methacrylate It may be composed of any one of (PMMA) resin.

In addition, the body portion 110 has an incidence portion 120 through which light is incident on one side, and an emission portion 130 in the other side so that light incident through the incidence portion 120 is output.

In addition, the body portion 110 may protrude from the incident portion 120 for a predetermined length to form a fixing portion 140.

The incidence part 120 is installed on one side of the body part 110 so that the incident light forms a preset optical path and moves to the emission part 130.

In addition, the incidence part 120 is formed to have a slope of a certain angle θ1 in the direction of light output, and the first incidence part 121 and the second incidence part 122 ) And the third incident unit 123 may be included.

The first incident unit 121 and the second incident unit 122 may be installed in a vertical direction so as to be orthogonal to a central optical axis of incident light.

In addition, the first incident unit 121 and the second incident unit 122 may be formed of a flat surface and a curved surface.

At this time, the first incidence part 121 is formed in a plane, and the second incidence part 122 protrudes in a direction in which light is output between a certain area (R1 to R1') of the first incidence part 121 It can be composed of a curved surface.

In addition, the second incidence portion 122 may be formed of a convex lens having a cylindrical shape, such as a groove portion 111 formed along a vertical direction of the body portion 110.

The second incident part 122 having a cylindrical shape allows the incident light to form a light distribution pattern in which incident light is irradiated to both sides of the lens 100 in the horizontal direction.

In the present embodiment, the first incident unit 121 is configured as a plane, and the second incident unit 122 is configured as a convex lens-shaped curved surface, but is not limited thereto, and the first incident unit 121 ) And the second incident part 122 may be formed as a curved surface having a curvature of a predetermined size.

The third incidence part 123 is installed at the lower side of the first incidence part 121 and the second incidence part 122, and the first incidence part 121 and the second incidence part 122 are installed vertically. It may be configured in a shape inclined in the output direction of light so as to have a predetermined angle θ1 with the direction reference line R2.

That is, the third incident part 123 forms an optical path so that the incident light is refracted upward through, for example, an inclined inclined surface.

In addition, the third incident unit 123 may be configured as a spherical or aspherical surface having an arbitrary curvature so that the incident light is refracted at a predetermined angle and output to the emission unit 130.

In addition, the boundary portion 124 formed between the first incident portion 121 and the second incident portion 122 and the third incident portion 123 induces total reflection so that the incident light is transmitted in the vertical direction of the lens 100. It is possible to form a light distribution pattern that is irradiated upward.

The emission part 130 is installed on the other side of the body part 110, and the light transmitted through the incidence part 120 forms an arbitrary light distribution pattern and is output.

In addition, the emission part 130 may have a planar shape or a spherical or aspherical surface having a curvature of a predetermined size.

In addition, the lens 100 may configure the fixing part 140 in the direction of the incidence part 120 so that the light source parts 210 and 210a, which will be described later, are fixed to one side of the body part 110.

In addition, in the present embodiment, the fixing portion 140 is formed by protruding, but the present invention is not limited thereto, and a groove portion may be formed on one side of the body portion 110.

In addition, the lens 100 includes a reflecting unit 150 that reflects or refracts a path of light moving downward from the light incident on the bottom of the fixing unit 140 toward the incident unit 120. It can also be configured.

The reflective part 150 may be formed of an aspherical surface or the like so as to coat a reflective material or induce total reflection.

In addition, the lens 100 may be configured as an array lens 100a arranged by arranging a plurality of lenses 100 ′ and 100 ″ at regular intervals.

Next, a road gaze guidance device using an optical system for road gaze guidance according to an embodiment of the present invention will be described.

First, repetitive descriptions of the same components are omitted, and the same reference numerals are used for the same components.

6 is a perspective view showing a road gaze guiding device using an optical system for guiding road gaze according to an embodiment of the present invention, and FIG. 7 is a structure of a road gaze guiding device using the optical system for guiding road gaze according to the embodiment of FIG. 6 Is an exploded perspective view showing the configuration of a road gaze guidance device using an optical system for road gaze guidance according to the embodiment of FIG. 6, and FIG. 9 is an optical system for road gaze guidance according to the embodiment of FIG. 6 It is a side cross-sectional view showing the structure of the optical module part of the road gaze guidance device using, and FIG. 10 is a perspective view showing the configuration of the optical module part of the road gaze guidance device using the optical system for road gaze guidance according to the embodiment of FIG. 6.

6 to 10, the road gaze guidance device using the optical system for road gaze guidance according to an embodiment of the present invention includes an array lens in which lenses 100, 100', 100" are arranged at regular intervals ( It may be composed of a light source module unit 200 and 200a having 100a) and a labeling bottle 300 having a housing 310.

The light source module parts 200 and 200a are installed on one side of the body part 110 through which light passes, and the body part 110, and a part of the incident surface on which the light is incident is at a certain angle ( An incidence part 120 formed to have an inclination of θ1) and an emission part installed on the other side of the body part 110 and configured to form an arbitrary light distribution pattern and output the light transmitted through the incidence part 120 ( Lenses 100, 100', 100" including 130) are configured to include array lenses 100a arranged at regular intervals.

In addition, the light source module units 200 and 200a may include a plurality of light source units 210 and 210a that output light to the array lens 100a.

The light source units 210 and 210a are configured to output light in a predetermined wavelength range, and may include an LED chip 211 that outputs any one of white light, yellow light, and green light.

In the present embodiment, the external shape of the light source units 210 and 210a is described as a shell shape, but the present embodiment is not limited thereto, and may be configured as a package in which LED chips are arranged.

The label bottle 300 is a member having a storage space therein, and a through hole 320 may be formed at one side of the housing 310 in the longitudinal direction of the housing 310.

In addition, through holes 320 may be formed on both sides of the housing 310 in the longitudinal direction.

In addition, light source module units 200 and 200a may be installed in the through hole 320 formed in the housing 310.

The following describes an operation process of a road gaze guidance device using an optical system for road gaze guidance according to an embodiment of the present invention.

The light emitted from the LED chip 211 of the light source unit 210 inserted into the fixing unit 140 is incident on the lens 100 installed in the housing 310 of the label bottle 300.

The light from the light source unit 210 is incident through the incident unit 120 installed on the body unit 110, and the light incident on the first incident unit 121 and the second incident unit 122 is the first and second The light distribution pattern C1 that is output in both the vertical and horizontal directions of the body portion 110 is formed by the shape of the incident surfaces of the incidence portions 121 and 122 and is output through the emission portion 130.

In addition, the light incident on the boundary 124 between the first incident unit 121 and the second incident unit 122 and the third incident unit 123 is vertically upper and horizontally of the body unit 110 through total reflection. The light distribution pattern C2 that is outputted is formed and is output through the emission unit 130.

In addition, some of the light incident on the third incident unit 123 is reflected or refracted through the reflecting unit 150 to form an optical path parallel to the optical axis or in a horizontal direction, and is output through the emission unit 130, Light distribution as shown in FIG.

magnitude
standard 20 15 10 5 0 5 10 15 20 2 18 18 One 21 21 0 12 54 60 54 12
design
result 20 15 10 5 0 5 10 15 20 2 41.85 42.5 One 48.2 47.7 0 21.4 65.2 69.6 63.2 20.9
Light distribution
standard -20° -10° 0° 10° 20° 20° 0.05 0.08 0.1 0.08 0.05 10° 0.08 0.3 0.5 0.3 0.08 0.2° 0.1 0.5 One 0.5 0.1
design
ratio -20° -10° 0° 10° 20° 20° 0.33 0.18 0.16 0.17 0.34 10° 0.52 0.43 0.60 0.43 0.53 0.2° 0.31 0.73 1.00 0.73 0.30

magnitude
standard 20 15 10 5 0 5 10 15 20 2 18 18 One 21 21 0 12 54 60 54 12
design
result 20 15 10 5 0 5 10 15 20 2 39 46 One 51.4 57 0 22.1 57.4 61.1 59.7 27.4
Light distribution
standard -20° -10° 0° 10° 20° 20° 0.05 0.08 0.1 0.08 0.05 10° 0.08 0.3 0.5 0.3 0.08 0.2° 0.1 0.5 One 0.5 0.1
design
ratio -20° -10° 0° 10° 20° 20° 0.15 0.33 0.43 0.36 0.21 10° 0.44 0.89 1.08 1.00 0.54 0.2° 0.37 0.81 1.00 0.88 0.45

As shown in Tables 3 and 4 above, it can be seen that the lens design results of yellow light and white light meet the luminous intensity standard and light distribution standard of the "Road Safety Facility Installation and Management Guideline".

On the other hand, a part of the light that has passed through the reflection unit 150 is refracted by the body unit 110 to be output through the emission unit 130 in a light distribution pattern C3 that forms an optical path parallel to the optical axis or in a horizontal direction. do.

Therefore, it is possible to reduce the light output directly to the driver to reduce obstruction of the field of view, and to improve the luminous intensity, thereby satisfying the luminous intensity standard stipulated in the "Road Safety Facility Installation and Management Guidelines".

As described above, although it has been described with reference to a preferred embodiment of the present invention, those skilled in the art will variously modify and change the present invention within the scope not departing from the spirit and scope of the present invention described in the following claims. You will understand that you can do it.

In addition, the reference numbers in the claims of the present invention are provided for clarity and convenience of description, and are not limited thereto. In the process of describing the embodiments, the thickness of the lines shown in the drawings, the size of components, etc. May be exaggerated for clarity and convenience of description, and the above-described terms are terms defined in consideration of functions in the present invention and may vary according to the intentions or customs of users and operators. Should be made based on the contents throughout this specification.

100, 100', 100": lens 100a: array lens
110: body 111: groove
120: incident unit 121: first incident unit
122: second entrance portion 123: third entrance portion
124: boundary part 130: output part
140: fixed part 150: reflective part
200, 200a: light source module unit 210, 210a: light source unit
211: LED chip 300: marker
310: housing 320: through hole

Claims (11)

A body portion 110 through which light passes;
An incidence part 120 installed on one side of the body part 110 and formed so that a part of the incidence surface on which light is incident has a slope of a certain angle θ1 in the light output direction; And
At least one lens (100, 100) that is installed on the other side of the body part (110) and includes an output part (130) configured to form an arbitrary light distribution pattern and output the light transmitted through the incidence part (120). ', 100"), characterized in that the optical system for guiding the road gaze. The method of claim 1,
The lens (100, 100', 100") is an optical system for guiding a road gaze, characterized in that the array lens (100a) arranged at regular intervals. The method of claim 2,
The lens (100, 100', 100") further comprises a fixing portion (140) formed in the direction of the incident portion (120) so that the light source portions (210, 210a) are fixed. The method of claim 3,
The fixing part 140 further comprises a reflecting part 150 for reflecting or refracting the light path to the incident part 120 on the inside of the bottom surface. The method of claim 4,
The incident unit 120 includes a first incident unit 121 and a second incident unit 122 formed so that light is incident in a vertical direction,
Including the first incident portion 121 and the second incident portion 122 and a third incident portion 123 formed to have an inclination of a predetermined angle (θ1) in the output direction of light,
The first incident portion 121 and the second incident portion 122 is a road gaze guidance optical system, characterized in that consisting of a flat surface and a curved surface. The method of claim 5,
The second incidence part 122 is an optical system for inducing gaze on a road, characterized in that a curved surface protruding in a direction of light output in a predetermined area (R1 to R1') of the first incidence part 121 is formed. The method of claim 5,
The third incident part 123 is an optical system for guiding a road line of sight, characterized in that it has a spherical surface or an aspherical surface. The method of claim 5,
The second incident part 122 forms a light distribution pattern that is irradiated to both sides of the lens 100 in the horizontal direction. The method of claim 5,
The incident part 120 is irradiated upward in the vertical direction of the lens 100 with the center of the boundary 124 between the first incident part 121 and the second incidence part 122 and the third incidence part 123. Optical system for guiding a road line of sight, characterized in that to form a light distribution pattern. A body portion 110 through which light passes, and an incident portion installed on one side of the body portion 110 and formed so that a part of the incident surface on which light is incident has a slope of a certain angle (θ1) in the output direction of the light ( 120), and a lens (100, 100) that is installed on the other side of the body part (110) and includes an output part (130) configured to form an arbitrary light distribution pattern and output the light transmitted through the incidence part (120). Light source module units 200 and 200a including an array lens 100a in which', 100″) are arranged, and light source units 210 and 210a for outputting light to the array lens 100a; And
A road gaze guidance device using an optical system for road gaze guidance consisting of a marker bottle 300 for accommodating the light source module unit 200 and 200a. The method of claim 10,
The light source unit 210, 210a outputs any one of white light, yellow light, and green light.

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