KR102316356B1 - 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 the driver with a linear guidance function of the road.

Description

Optical system for road gaze guidance and road gaze guidance device using the same

The present invention relates to an optical system for inducing a road gaze and an apparatus for inducing a road gaze using the same, and more particularly, an optical system for inducing a road gaze meeting the luminosity standard of a road sign providing a linear guidance function of a road to a driver and an optical system for inducing a road gaze using the same It relates to a road gaze guide device.

In general, road signs are installed on the center line of the road or on the lanes of the divided road, and the reflector reflects the light during the day as well as at night so that the driver clearly identifies the dividing line of the road, thereby inducing safe driving. do.

These road signs are fixed by inserting them at regular intervals along the dividing lanes of the paved road.

Here, the reflective road sign allows the driver to recognize the road sign by reflecting the light as it is by using the reflector only when the light from the vehicle headlamp is incident.

However, in the case of such a reflective road sign, 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 sign is lost when the headlight of the vehicle is broken or the headlight has low luminance.

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

Since the light emitting road sign always outputs light of a constant brightness, there is an advantage in that the driver can easily check the road sign through the light of the road sign when there is no light around or when looking from a distance.

However, the lighting currently used as a road sign performs a function to inform the alignment of the road with white and yellow lighting, but the luminous intensity standards for each angle stipulated in Table 1 in the "Road Safety Facility Installation and Management Guidelines" and Table 2 There is a problem that does not satisfy the light distribution prescribed as such.

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
upright 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 the LED has a strong directivity of light, there is a problem in that the driver's view is obstructed when the driver directly sees the output light.

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

Korea Patent Publication No. 10-1415006 (Title of the invention: road sign for improved visibility)

In order to solve this problem, an object of the present invention is to provide an optical system for guiding a road gaze and a device for guiding a road gaze using the optical system that meets the luminosity standard of a road sign that provides a linear guidance function of a road to a driver.

In order to achieve the above object, an optical system for guiding a road gaze according to an embodiment of the present invention includes: a body through which light is transmitted; an incident part installed on one side of the body part and formed so that a portion of an incident surface on which light is incident has a slope of a certain angle in the light output direction; and an emitting part installed on the other side of the body part and outputting the light passing through the incident part to form an arbitrary light distribution pattern.

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

In addition, the lens according to the embodiment is characterized in that it further includes a fixing portion formed in the direction of the incident portion so that the light source portion is fixed.

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

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

In addition, the first incident portion and the second incident portion according to the embodiment are characterized in that made of a flat surface and a curved surface.

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

In addition, the third incident portion according to the embodiment is characterized in that it is formed of a spherical surface or an aspherical surface.

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

In addition, the incident portion according to the embodiment is characterized in that it forms a light distribution pattern irradiated vertically upward of the lens around the boundary between the first incident portion and the second incident portion and the third incident portion.

In addition, the road gaze guidance device using an optical system for road gaze guidance according to an embodiment of the present invention includes a body part through which light is transmitted, and is installed on one side of the body part, and a portion of an incident surface on which light is incident is output of light. An array lens in which a lens is arranged including an incident part formed to have a slope of a certain angle in the direction, and an output part installed on the other side of the body part and outputting the light passing through the incident part to form an arbitrary light distribution pattern; a light source module unit having a light source unit outputting light to the array lens; and a cover bottle 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 linear guidance function of the road to the driver, and providing an optical system for guiding the road gaze that meets the luminous intensity standard of a road sign, and an apparatus for guiding the road gaze using the same.

1 is a perspective view showing an optical system for guiding a road gaze according to an embodiment of the present invention;
Figure 2 is a side cross-sectional view showing the structure of the optical system for guiding the road gaze according to the embodiment of Figure 1;
FIG. 3 is a perspective view illustrating an incident part shape of an optical system for guiding a road gaze according to the embodiment of FIG. 1 ;
4 is a side cross-sectional view showing the shape of an incident part of the optical system for guiding a road gaze according to the embodiment of FIG. 1 ;
5 is a perspective view showing an array of an optical system for guiding a road gaze according to the embodiment of FIG. 1;
6 is a perspective view illustrating 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 a structure of a road gaze guidance device using an optical system for road gaze guidance according to the embodiment of FIG. 6 .
8 is an exploded perspective view illustrating 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 unit of the road gaze guidance device using the optical system for road gaze guidance according to the embodiment of FIG. 6 .
10 is a perspective view showing the configuration of an optical module unit of the road gaze guidance device using the optical system for road gaze guidance according to the embodiment of FIG. 6 .
11 is an exemplary view showing a light distribution baton of the road gaze guidance device using the optical system for road gaze guidance according to the embodiment of FIG. 6 .
FIG. 12 is an exemplary view illustrating 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 inducing a road gaze and an apparatus for inducing a road gaze using the optical system according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Prior to describing the specific contents for carrying out the present invention, it should be noted that components not directly related to the technical gist of the present invention are omitted within the scope of not disturbing the technical gist of the present invention.

In addition, the terms or words used in the present specification and claims have 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 best describe his invention. should be interpreted as

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

Also, terms such as “… unit”, “… group”, and “… module” mean a unit that processes at least one function or operation, which may be divided into hardware, software, or a combination of the two.

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

In addition, that each component is provided in singular or plural may be changed according to an embodiment.

1 is a perspective view showing an optical system for inducing a road gaze according to an embodiment of the present invention, FIG. 2 is a side cross-sectional view showing the structure of an optical system for inducing a road gaze according to the embodiment of FIG. 1, and FIG. A perspective view showing the shape of the incident part of the optical system for inducing 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 inducing the road gaze according to the embodiment of FIG. 1 , and FIG. 5 is the embodiment of FIG. It is a perspective view showing an array of an optical system for guiding a road gaze according to an example.

1 to 5 , the optical system for inducing a road gaze according to an embodiment of the present invention includes a body part 110 , an incident part 120 , an emitting part 130 , and a fixing part 140 . ) and a total reflection unit 150 .

The body part 110 is made of a transparent material so that light can pass through, polyimide (PI) resin, polyester (PET) resin, acrylic resin, polycarbonate (PC) resin, polymethyl methacrylate It may be composed of any one of (PMMA) resins.

In addition, the body part 110 has an incident part 120 to which light is incident is formed on one side, and an exit part 130 is formed on the other side so that the light incident through the incident part 120 is output.

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

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

In addition, the incident part 120 is formed so that a portion of the incident surface on which light is incident has a slope of a predetermined angle θ1 in the light output direction, and the first incident part 121 and the second incident part 122 are formed. ) and the third incident part 123 may be included.

The first incident part 121 and the second incident part 122 may be installed in a vertical direction to be perpendicular to a central optical axis of the incident light.

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

In this case, the first incident part 121 is configured as a plane, and the second incident part 122 protrudes in a direction in which light is output between the predetermined areas R1 to R1' of the first incident part 121 . It may be composed of a curved surface.

In addition, the second incident part 122 may be configured as a convex lens having a cylindrical shape, like the groove part 111 formed along the vertical direction of the body part 110 .

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

In the present embodiment, the first incident part 121 is configured as a flat surface and the second incident part 122 is configured as a curved surface of a convex lens shape as an embodiment, but the present invention is not limited thereto. ) and the entire surface of the second incident unit 122 may be configured as a curved surface having a predetermined size of curvature.

The third incident part 123 is installed on the lower side of the first incident part 121 and the second incident part 122 , and the first incident part 121 and the second incident part 122 are installed vertically. It may be configured in a shape inclined in the light output direction 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 an inclined surface, for example.

In addition, the third incident unit 123 may be configured as a spherical or aspherical surface having an arbitrary curvature so that 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 . A light distribution pattern irradiated upward can be formed.

The emitting part 130 is installed on the other side of the body part 110, so that the light passing through the incident part 120 forms an arbitrary light distribution pattern and is output.

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

In addition, the lens 100 may configure the fixing part 140 in the direction of the incident 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 part 140 is configured to protrude, but the present invention is not limited thereto, and may be configured by forming a groove part on one side of the body part 110 .

In addition, the lens 100 includes a reflection unit 150 that reflects or refracts a path of light moving downward among the light incident on the inner side of the bottom surface of the fixing unit 140 in the direction of the incident unit 120 . It can also be configured.

The reflective part 150 may be coated with a reflective material or configured as an aspherical surface to induce total reflection.

Also, the lens 100 may be configured as an array lens 100a in which a plurality of lenses 100' and 100" are arranged 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 induction device using an optical system for inducing a road gaze according to an embodiment of the present invention, and FIG. 7 is a structure of a road gaze guidance device using an optical system for inducing a road gaze according to the embodiment of FIG. 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. It is a side cross-sectional view showing the structure of the optical module part of the road gaze induction device using a, 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.

As shown in FIGS. 6 to 10 , the device for inducing a road gaze using an optical system for inducing a road gaze according to an embodiment of the present invention includes an array lens ( 100a) and the light source module units 200 and 200a, and the cover bottle 300 including the housing 310.

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

Also, the light source module units 200 and 200a may include a plurality of light source units 210 and 210a for outputting 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 for outputting any one of white light, yellow light, and green light.

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

The cover bottle 300 is a member having a receiving space therein, and a housing 310 and a through hole 320 may be formed on one side 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, the light source module units 200 and 200a may be installed in the through hole 320 formed in the housing 310 .

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

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 300 .

The light from the light source unit 210 is incident through the incident unit 120 installed in the body unit 110 , and the light incident to the first incident unit 121 and the second incident unit 122 is first and second The light distribution pattern C1 output to both the vertical and horizontal directions of the body part 110 is formed by the shape of the incident surface of the incident parts 121 and 122 , and is output through the output part 130 .

In addition, the light incident on the boundary portion 124 between the first incident portion 121 and the second incident portion 122 and the third incident portion 123 is vertically upward and horizontally of the body portion 110 through total reflection. Forms a light distribution pattern C2 that is output as , and is output through the emission unit 130 .

In addition, a part of the light incident to the third incident unit 123 is reflected or refracted through the reflection unit 150 to form an optical path parallel to or horizontal to the optical axis and output through the emission unit 130, A light distribution as shown in FIG. 12 can be formed.

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 yellow light and white light lens design results meet the luminous intensity standards and light distribution standards of "Road Safety Facility Installation and Management Guidelines".

On the other hand, a portion of the light passing through the reflection unit 150 is refracted in the body unit 110 so that it is output through the emission unit 130 as a light distribution pattern C3 that forms a light path parallel to the optical axis or in the horizontal direction. do.

Therefore, by reducing the light output directly to the driver, the visibility is reduced, and the brightness is improved, so that it is possible to meet the brightness standard prescribed in the "Road Safety Facility Installation and Management Guidelines".

As described above, although described with reference to the preferred embodiment of the present invention, those skilled in the art can variously modify and change the present invention within the scope without departing from the spirit and scope of the present invention described in the claims below. You will understand that it can be done.

In addition, the reference numbers described in the claims of the present invention are only described for clarity and convenience of description, and are not limited thereto, and in the process of describing the embodiment, the thickness of the lines shown in the drawings or the size of components, etc. may be exaggerated for clarity and convenience of explanation, and the above-mentioned terms are terms defined in consideration of functions in the present invention, which may vary depending on the intention or custom of the user or operator, so the interpretation of these terms should be made based on the content throughout this specification.

100, 100', 100" : Lens 100a : Array Lens
110: body 111: groove
120: incident part 121: first incident part
122: second incident part 123: third incident part
124: boundary part 130: exit part
140: fixed part 150: reflector
200, 200a: light source module unit 210, 210a: light source unit
211: LED chip 300: beacon
310: housing 320: through hole

Claims (11)

Body portion 110 through which light is transmitted;
an incident part 120 installed on one side of the body part 110 and formed so that a portion of an incident surface on which light is incident has a slope of a predetermined angle θ1 in the light output direction; and
Installed on the other side of the body portion 110, the light passing through the incident portion 120 to form an arbitrary light distribution pattern and output portion 130; at least one lens 100 including a done,
The incident unit 120 has a flat surface and a curved surface, and includes a first incident unit 121 and a second incident unit 122 installed in a vertical direction to be perpendicular to the central optical axis of the incident light, and the first incident unit ( 121) and the second incident unit 122 and a third incident unit 123 formed to have a slope of a predetermined angle θ1 in the light output direction,
The first incident part 121 is composed of a plane,
The second incident part 122 has a curved surface that protrudes in the light output direction between the predetermined regions R1 to R1' of the first incident part 121 so that the incident light is transmitted to both sides of the lens 100 in the horizontal direction. It has a cylindrical shape to form a light distribution pattern irradiated with
The third incident part 123 is the first incident part 121 and the second incident part 122 installed through the vertical reference line R2 and the inclined surface inclined in the light output direction to have a predetermined angle θ1. An optical system for guiding a road gaze, characterized in that it is composed of a spherical surface or an aspherical surface having an arbitrary curvature to form an upwardly refracted light path. The method of claim 1,
The lens 100 is an optical system for inducing a road gaze, characterized in that the array lenses 100a are arranged at regular intervals. 3. The method of claim 2,
The lens 100 is an optical system for inducing a road gaze, characterized in that it further includes a fixing part 140 formed in the direction of the incident part 120 so that the light source parts 210 and 210a are fixed. 4. The method of claim 3,
The fixing unit 140 further includes a reflection unit 150 for reflecting or refracting the path of light to the incident unit 120 on the inner side of the bottom surface. delete delete delete delete The method of claim 1,
The incident portion 120 is irradiated vertically upward of the lens 100 with the first incident portion 121 and the boundary portion 124 between the second incident portion 122 and the third incident portion 123 as the center. An optical system for guiding a road gaze, characterized in that it forms a light distribution pattern. The body part 110 through which light passes, and the incident part installed on one side of the body part 110, and formed so that a part of the incident surface on which the light is incident has a slope of a certain angle θ1 in the light output direction ( 120) and a lens 100 including an emitting part 130 installed on the other side of the body part 110 and outputting the light passing through the incident part 120 to form an arbitrary light distribution pattern. a light source module unit (200, 200a) having an array lens (100a) and a light source unit (210, 210a) for outputting light to the array lens (100a); and
A cover bottle 300 for accommodating the light source module unit 200, 200a;
The incident unit 120 has a flat surface and a curved surface, and includes a first incident unit 121 and a second incident unit 122 installed in a vertical direction to be perpendicular to the central optical axis of the incident light, and the first incident unit ( 121) and the second incident unit 122 and a third incident unit 123 formed to have a slope of a predetermined angle θ1 in the light output direction,
The first incident part 121 is composed of a plane,
The second incident part 122 has a curved surface that protrudes in the light output direction between the predetermined regions R1 to R1' of the first incident part 121 so that the incident light is transmitted to both sides of the lens 100 in the horizontal direction. It is made in a cylindrical shape to form a light distribution pattern irradiated with
The third incident part 123 is the first incident part 121 and the second incident part 122 installed through the vertical reference line R2 and the inclined surface inclined in the light output direction to have a predetermined angle θ1. A road gaze guidance device using an optical system for road gaze guidance, characterized in that it is composed of a spherical surface or an aspherical surface having an arbitrary curvature to form an upwardly refracted light path. 11. The method of claim 10,
The light source unit (210, 210a) is a road gaze guidance device using an optical system for inducing a road gaze, characterized in that outputting any one of white light, yellow light and green light.

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