KR101913717B1 - Rain Sensor with Reflection Part - Google Patents

Abstract

The present invention relates to a raindrop detecting device having a reflection part. A reflection part is provided on a side of a light emitting part, so that light emitted toward a light emitting side wall part by the light emitting part can be easily guided to a windshield direction, thereby increasing light efficiency of the light emitting part. The raindrop detecting device having a reflection part comprises: a light emitting member; and a light receiving member.

Description

[0001] The present invention relates to a Rain Sensor with Reflection Part,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to an image sensing apparatus having a reflection unit, and more particularly, to an image sensing apparatus having a reflection unit for easily detecting a raindrop falling on a windshield.

Typically, the windshield of a car is equipped with a wiper to wipe water droplets on the exterior surface. The driver manually controls the speed of the wiper according to the external situation, and the wiper removes water drops intermittently at the selected time delay interval. This is because the driver must manually operate the wiper operation in accordance with the change of the external situation, distracting the driver's attention, interfering with driving, and possibly causing a traffic accident.

Accordingly, in recent years, there has been provided a rain sensor for detecting the amount of raindrops formed on the outer surface of the windshield, and a wiper driving signal is outputted to the wiper driving unit by using the sensing signal measured by the rain sensor so that the wiper is automatically operated A wiper control system is provided.

A conventional rain sensor for a vehicle is provided with a light emitting portion and a light receiving portion on the inner surface of a windshield, for example, an optical conduction detecting the amount of rainwater by detecting a change in the intensity of light of a light receiving portion, Method. Since the optical conduction system is installed in the vehicle, contamination or breakage due to the external environment can be prevented, and the cost of the sensor component is relatively low.

1 is a view illustrating a rain sensor to which a conventional optical conduction method is applied. Referring to FIG. 1, a conventional rain sensor 1 includes a light emitting unit 10, a first reflector 12, a second reflector 22, a light receiving unit 20, and a controller (not shown). The light emitting portion 10 is provided in the windshield of the vehicle and irradiates light toward the windshield. The first reflecting portion 12 reflects the light emitted from the light emitting portion 10 to the measurement region where the raindrop of the windshield is to be measured. The light reflected by the first reflecting portion 12 is reflected by the second reflecting portion 22 by the raindrop D and the light reflected by the second reflecting portion 22 is reflected by the raindrop D, Reflects the light reflected by the raindrop (D) to the light receiving unit (20). The light receiving portion 20 collects the light reflected by the second reflecting portion 22. [ The control unit receives the amount of light collected by the light receiving unit 20 and senses the amount of the rain drops D formed on the windshield so as to operate the wiper and adjust the speed of the wiper according to the amount of the rain drops D Adjust it.

In this conventional rain sensor 1, when the measurement area is wide, the size of the light emitting part 10 and the light receiving part 20 must be increased and the number thereof also increased in order to accurately detect raindrops falling over a large area, There is a problem in that it is costly. When the light w10 emitted by the light emitting portion 10 is irradiated to a place other than the first reflecting portion 12, it can not be transmitted again in the direction of the first reflecting portion 12, ) Is low. The light w12 emitted by the light emitting portion 10 is directly irradiated to the light receiving portion 20 or the light other than the light emitted by the light emitting portion 10, that is, the disturbance light w14 by the headlight of the other party When the light is irradiated to the light receiving unit 20, the amount of light collected by the light receiving unit 20 can not be relied upon, which causes the control unit to malfunction the wiper.

Korean Patent Registration No. 10-1007455

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems of the prior art, and it is an object of the present invention to provide a rainfall sensing apparatus having a reflector for accurately detecting raindrops falling over a wide area of a windshield.

It is another object of the present invention to provide a proprioception apparatus including a reflector for allowing light emitted from a light emitting unit to be easily guided in a raindrop direction to increase light efficiency of the light emitting unit.

It is still another object of the present invention to provide an apparatus and a method for controlling the amount of light collected by a light receiving unit so that the light emitted by the light emitting unit is not directly irradiated to the light receiving unit and the disturbance light is not irradiated to the light receiving unit, .

According to an aspect of the present invention, there is provided a light emitting device comprising: a light emitting member having a light emitting portion for emitting light in a windshield direction of a vehicle; And a light receiving unit having a light receiving unit having a light receiving unit for receiving the light receiving unit, the light receiving unit being configured to receive light reflected by the raindrop irradiated from the light emitting unit and reflected by the raindrop, And a reflector for reflecting the light radiated to the side of the light emitting body among the light emitted from the light emitting unit in a windshield direction.

The present invention also provides a light emitting device comprising: a light emitting member having a light emitting portion for emitting light in a windshield direction of a vehicle; And a light receiving unit having a light receiving unit that receives the light reflected from the windshield and reflected by the windshield, and a light receiving unit that receives the light receiving unit, wherein the light receiving unit includes a light receiving unit And a reflector is provided on the side of the reflector so that light reflected by the raindrop irradiated from the light emitting unit and formed on the windshield is reflected toward the light receiving unit.

The luminescent body may include a luminescence receiving portion formed to receive the luminescent portion and a luminescent lid covering an open upper portion of the luminescent accommodating portion. The luminescent receiving portion includes a luminescent receiving portion on which the luminescent portion is seated, And a light emitting sidewall part protruding from the rim of the light emitting mount part in the direction of the light emitting lid, wherein the reflection part is provided on the light emitting sidewall part.

The light emitting sidewall portion may include a first light emitting sidewall portion protruding to face the light emitting portion along a rim of the light emitting mount portion, a second light emitting sidewall portion protruding from the end of the first light emitting sidewall portion toward the light emitting lid, Wherein the second light emitting sidewall portion includes an inclined portion that is inclined outwardly toward the windshield direction, and the reflective portion is provided on the inclined portion. do.

The reflective portion may include a plate portion formed in a plate shape, a reflective coating portion coated on one surface of the plate portion to reflect light, and a plurality of dimple portions recessed in the reflective coating portion. And a control unit for controlling the control unit.

The light receiving main body includes a light receiving portion formed to receive the light receiving portion and a light receiving lid covering the opened upper portion of the light receiving portion. The light receiving portion includes a light receiving portion on which the light receiving portion is seated, And a light receiving sidewall portion protruding from the rim of the light receiving portion toward the light receiving lid, wherein the reflecting portion is provided on the light receiving sidewall portion.

The light receiving sidewall may include a first opening portion and a second opening portion formed so as to have a hollow space therein and open at one side and the other side of the space portion, Wherein the light receiving portion is provided in the second opening portion, the space portion is formed so as to have a larger cross-sectional area in the direction of the first opening portion, the first opening portion is formed to have a larger diameter than the second opening portion, Wherein the light receiving side wall portion facing the space portion is formed with an inclined side portion inclined outwardly toward the first opening portion, and the reflective portion is provided on the inclined side portion. Sensing device.

The light-emitting body may include a light-emitting receptacle formed to receive the light-emitting portion, and a light-emitting lid covering the opened upper portion of the light-emitting receptacle, wherein the light-receiving body includes a light- And a light receiving lid covering the open upper portion of the light receiving portion, wherein the light receiving portion and the light receiving portion are made of a material through which light does not pass.

A first light guide portion is provided between the light emitting member and the windshield so as to guide the light irradiated by the light emitting portion to the measurement region, and the first light guide portion is provided between the light emitting member and the light shielding portion of the windshield, And a second light guide portion is provided between the light receiving portion and the windshield so as to guide the light emitted from the light emitting portion and reflected by the raindrop formed in the measurement region to the light receiving portion. do.

The first light guiding portion may include: a first guide body mounted at a position opposite to the light emitting member of the windshield; A first plate disposed in the first guide body and having a light incident from the light emitting unit, and a second plate disposed on one surface of the first plate facing the windshield so that light incident on the first plate is guided obliquely toward the measurement region, And a first guide lens having a plurality of first projections projecting to be inclined toward the measurement area, wherein the second light guide comprises: a second guide body mounted at a position opposite to the light receiving member of the windshield; And a second guide lens having a second plate provided in the second guide body and a plurality of second projections protruding to be inclined toward a measurement area on one surface of the second plate facing the windshield, And the light emitted from the light emitting portion and reflected by the raindrop formed in the measurement region is sequentially reflected toward the second plate and the light receiving portion while being reflected by the second projecting portion. do.

The light emitting body may include a light emitting accommodating portion having a concave shape for accommodating the light emitting portion and having the reflective portion at a side thereof, a light emitting cover covering the open upper portion of the light emitting accommodating portion, And a light emitting angle adjusting unit formed inside the light emitting lid facing the light emitting unit to emit light to the first light guiding unit, wherein the light receiving main body includes a light receiving unit formed concavely to receive the light receiving unit, And a light receiving angle adjusting unit formed inside the light receiving lid to face the light receiving unit so as to condense the light reflected by the second light guiding unit to the light receiving unit. And a control unit for controlling the control unit.

In addition, the light-emitting angle adjusting unit and the light-receiving angle adjusting unit may include a Fresnel lens.

In addition, the inside of the luminescent lid facing the light emitting portion may include a light emitting central portion located at the center thereof and a light emitting frame portion located along the rim of the light emitting central portion, A plurality of protrusions formed concentrically on the light emitting edge portion and protruding from the center of the light emitting center portion at an angle different from that of the first center portion, And a light receiving frame portion located along a rim of the light receiving center portion, wherein the light receiving frame portion includes a first frame portion inclined to face the light receiving portion, A plurality of angular adjustment portions are formed concentrically on the light receiving central portion, And a second frame formed obliquely so as to face the center of the light receiving center part at a different angle from the second center part, The present invention provides an image sensing apparatus including a reflector.

The first central portion may be inclined toward the center of the light emitting center portion than the first edge portion and the second central portion may be formed to be sloped more toward the center of the light receiving center than the second edge portion. And a reflecting section for reflecting the reflected light.

The light emitting diaphragm may further include a light emitting side portion protruding from a rim of the light emitting frame toward the light emitting accommodation portion, the light emitting angle adjusting portion being positioned to be spaced apart from the light emitting accommodation portion by a height of the light emitting side portion, The light receiving lid further includes a light receiving side portion protruding from the rim of the light receiving frame toward the light receiving portion, and the light receiving angle adjusting portion is positioned to be spaced apart from the light receiving portion by the height of the light receiving side portion. The present invention provides an apparatus and method for detecting an object.

In addition, the inside of the luminescent lid facing the light emitting portion may include a light emitting center portion located at the center thereof and a light emitting frame portion located along the rim of the light emitting center portion, And a light receiving frame portion which is formed to be convex in the direction of the light emitting center portion and the inside of the light receiving cover facing the light receiving portion has a light receiving center portion positioned at the center thereof and a light receiving frame portion positioned along the rim of the light receiving center portion, Wherein the light receiving portion is convexly formed in the light receiving frame portion toward the light receiving center portion.

In addition, the inside of the luminescent lid facing the light emitting portion includes a light emitting central portion positioned at the center thereof and a light emitting frame portion located along the rim of the light emitting central portion, and the light emitting angle adjusting portion includes a rim Wherein the light receiving lid has a light receiving center portion located at the center thereof and a light receiving frame portion located along the rim of the light receiving center portion, And the light receiving angle adjusting portion is formed to be convex in the central direction of the light receiving central portion from the rim of the light receiving central portion.

In addition, the light emitting angle adjusting unit or the light receiving angle adjusting unit may include an aspherical lens.

In addition, light-emitting coupling protrusions are formed on both sides of the light-emitting lid to protrude upward from the light-receiving portion, and light-emitting insertion portions are formed on the light-receiving portion to insert and bond the light-emitting coupling protrusions. And a light receiving insertion portion is formed on the upper side of the light receiving portion so that the light receiving insertion protrusion is inserted and coupled.

Since the present invention includes the reflecting portion on the side of the light emitting portion, the light emitted from the light emitting portion toward the light sidewall portion is easily guided in the windshield direction, thereby increasing the light efficiency of the light emitting portion.

Since the dimple portion of the reflective portion is concave in the reflective coating portion, the light-emitting portion is reflected in the windshield direction while varying the angle of the light radiated laterally of the light-emitting main body, so that the light of the light- Shielding direction.

Further, since the light-emitting accommodating portion and the light-receiving portion are made of a material that does not allow passage of light, the light emitted by the light-emitting portion is not directly irradiated to the light-receiving portion and the disturbance light caused by the headlight of the other party is also not irradiated to the light- The reliability of the light-receiving portion is improved.

In addition, since the light-emitting angle adjusting unit includes the first center portion and the first frame portion having different inclined angles, even if the angle of light emitted from the light-emitting portion to the light-emitting angle adjusting portion increases from the center to the rim, light passing through the first center portion The light is refracted at a relatively small angle and transmitted in the center direction of the first light guide portion, and the light passing through the first frame portion is refracted at a relatively large angle and is transmitted in the direction of the first light guide portion.

When the light reflected by the second light guide portion is condensed by the light receiving portion, the light passing through the second central portion positioned close to the light receiving portion is reflected by the second light guide portion, The light is refracted at a relatively small angle and is easily transmitted to the light receiving portion and the light passing through the second frame portion far from the light receiving portion is refracted at a relatively large angle and is easily transmitted to the light receiving portion.

Further, since the light-emitting angle adjusting unit and the light-receiving angle adjusting unit are integrally formed inside the light-emitting body and the light-receiving body, the manufacturing process is simplified, the total volume is reduced, and the light-

Further, the light emitted from the light emitting portion is easily guided to the measurement region through the first light guiding portion, and the light reflected by the raindrop is guided to the light receiving portion easily through the second light guiding portion.

The light reflected by the windshield in the direction of the light receiving portion is reflected by the reflecting portion and is easily guided toward the light receiving portion so that the light receiving portion There is an effect that the light-receiving efficiency of the light-receiving element is increased.

1 is a view illustrating a rain sensor to which a conventional optical conduction method is applied.
FIG. 2 is a schematic view illustrating a state in which a right-side sensing device having a reflector according to a first embodiment of the present invention is mounted on a windshield of a vehicle. FIG.
FIG. 3 is a schematic view illustrating a light emitting member and a light receiving member of a right-side sensing apparatus having a reflector according to a first embodiment of the present invention.
FIG. 4 is a schematic view illustrating a state in which a light emitting member and a light receiving member are disassembled, according to a first embodiment of the present invention.
5 is a view for explaining the detailed structure of the light emitting side wall portion, the light emitting lid, the light emitting angle adjusting portion, the light receiving side wall portion, the light receiving lid and the light receiving angle adjusting portion of the right side sensing device having the reflecting portion according to the first preferred embodiment of the present invention Fig.
FIG. 6 is a view for explaining the light-emitting angle adjusting unit and the light-receiving angle adjusting unit of the right-side sensing apparatus having the reflecting unit according to the first embodiment of the present invention.
FIG. 7 is a view illustrating a reflector of a right-side sensing apparatus having a reflector according to a first embodiment of the present invention.
8 is a view for explaining a path of light reflected by a reflector of a right-side sensing apparatus having a reflector according to a first preferred embodiment of the present invention.
FIG. 9 is a view for explaining first and second light guide units of a right-side sensing apparatus having a reflection unit according to a first embodiment of the present invention.
FIG. 10 and FIG. 11 are views schematically showing a state in which the light emitting member and the light receiving member are disassembled in the right-side sensing apparatus having the reflector according to the second embodiment of the present invention.
FIG. 12 is a view illustrating a detailed structure of a light emitting sidewall, a light receiving sidewall, and a reflector according to a preferred embodiment of the present invention.
FIG. 13 is a view illustrating a structure in which a light emitting lid and a light receiving lid of a right side sensing device having a reflector according to a preferred embodiment of the present invention are coupled to a light receiving portion and a light receiving portion.
FIG. 14 is a view schematically illustrating a process of receiving light emitted from a light emitting unit of a right-side sensing apparatus having a reflector according to a second embodiment of the present invention, to a light receiving unit.
FIG. 15 is a schematic view showing the inside of a light emitting member and a light receiving member of a proprietary sensing apparatus having a reflector according to a third preferred embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a schematic view illustrating a state in which a right-side sensing device having a reflector according to a first embodiment of the present invention is mounted on a windshield of a vehicle. FIG.

Referring to FIG. 2, a rainfall sensing apparatus 1000 having a reflector according to a first preferred embodiment of the present invention includes raindrops D, which are formed on the outside of the windshield W by rain And includes a light emitting member 100 and a light receiving member 200 mounted inside the windshield W of the vehicle and includes a first light guide portion 300 and a second light guide portion 400, . Here, the measurement area may be, for example, a region facing the driver of the windshield W that is required to secure the forward visibility of the driver. The light emitting member 100 and the light receiving member 200 may be positioned on one side and the other side of the measurement region with the measurement region interposed therebetween. The light emitting member 100 and the light receiving member 200 may be housed in a separate housing (not shown) coupled to the windshield W and the light emitting member 100 and the light receiving member 200 may be housed in a windshield W ). ≪ / RTI >

FIG. 3 is a schematic view illustrating a light emitting member and a light receiving member of a right-side sensing device having a reflector according to a first embodiment of the present invention. FIG. 4 is a cross- FIG. 1 is a view schematically showing a state in which a light emitting member and a light receiving member of a right-side sensing device having a reflecting portion are disassembled. FIG.

3 and 4, the light emitting member 100 includes a light emitting unit 110 in which the light emitting unit 110 and the light emitting unit 110 are accommodated. The light receiving unit 200 includes a light receiving unit 210, Receiving body 220 in which the light-receiving element 210 is accommodated. Here, the light emitting body 100 and the light receiving body 200 will be described with reference to FIGS. 3 to 6 since the light emitting body 120 and the light receiving body 220 have the same or similar external shape.

The light emitting member 100 includes a light emitting portion 110 that emits light in the direction of the measurement region of the windshield W, a light emitting main body 120 in which the light emitting portion 110 is accommodated, and a reflector 140 . It should be noted that the reflection part 140 is not provided in the light receiving part 200.

The light emitting unit 110 may include, for example, a light emitting diode (LED), but the present invention is not limited thereto.

The light emitting body 120 includes a light emitting portion 122 formed to receive the light emitting portion 110 and a light emitting cover 125 covering the open upper portion of the light emitting portion 122. The light emitting receptacle 122 includes a light emitting mount part 123 on which the light emitting part 110 is mounted and a light emitting sidewall part 124 protruding in the direction of the light emitting lid 125 from the rim of the light emitting mount part 123 . The light emitting portion 110 is accommodated in a space between the light emitting mount portion 123 and the light emitting sidewall portion 124. Here, the light-emitting mount part 123 may be detachably coupled to the light-emitting sidewall part 124, and may be electrically connected to the light-emitting part 110. The light emitting cover 125 is formed to cover the open top of the light emitting sidewall portion 124. The light emitting angle adjusting unit 130 is formed inside the light emitting lid 125 facing the light emitting unit 110.

The light receiving unit 200 includes a light receiving unit 210 irradiated from the light emitting unit 110 and receiving the light reflected by the raindrop D formed on the measurement area of the windshield W and a light receiving unit 210 receiving the light receiving unit 210. [ (220).

The light receiving unit 210 may include, for example, a light receiving element that senses an optical signal when reflected from the raindrop D and photoelectrically converts the optical signal into an electrical signal.

The light receiving main body 220 includes a light receiving portion 222 formed to receive the light receiving portion 210 and a light receiving lid 225 covering the open upper portion of the light receiving portion 222. The light receiving portion 222 includes a light receiving portion 223 on which the light receiving portion 210 is seated and a light receiving side wall portion 224 protruding in the direction of the light receiving lid 225 from the rim of the light receiving portion 223. Receiving portion 210 is accommodated in a space between the light receiving portion 223 and the light receiving side wall portion 224. [ The light receiving part 223 may be detachably coupled to the light receiving side wall part 224 and may be electrically connected to the light receiving part 210. The light receiving cover 225 is formed so as to cover the open upper portion of the light receiving side wall portion 224. A light receiving angle adjusting unit 230 is formed on the inner side of the light receiving lid 225 facing the light receiving unit 210.

Here, the light emitting and receiving unit 122 and the light receiving unit 222 are formed of a material that does not pass light. The light emitted from the light emitting unit 110 is not directly irradiated to the light receiving unit 210 because the light emitting unit 110 and the light receiving unit 210 are received in the light receiving unit 122 and the light receiving unit 222 The disturbance light by the headlight of the other party is also not irradiated to the light receiving section 210, and the reliability of the light receiving section 210 for collecting light is improved.

5 is a view for explaining the detailed structure of the light emitting side wall portion, the light emitting lid, the light emitting angle adjusting portion, the light receiving side wall portion, the light receiving lid and the light receiving angle adjusting portion of the right side sensing device having the reflecting portion according to the first preferred embodiment of the present invention Fig.

4 and 5, the light-emitting sidewall 124 includes a first light-emitting sidewall 124a protruding to face the light-emitting portion 110 along the rim of the light-emitting mount 123, And a second light emitting sidewall portion 124b protruding from the upper end of the side wall portion 124a toward the light emitting lid 125. [ The inner peripheral edge of the second light emitting sidewall portion 124b is formed with an inclined portion 124c inclined outwardly toward the windshield W and a reflecting portion 140 is mounted on the inclined portion 124c. The inclined portion 124c and the reflecting portion 140 are provided only in the light emitting member 100 and will be described with reference to FIG.

The light emitting lid 125 covers the open top of the second light emitting sidewall 124b and includes a light emitting central portion 125a, a light emitting edge portion 125b and a light emitting side portion 125c. The light emitting center portion 125a and the light emitting edge portion 125b are positioned to face the light emitting portion 110. [ The light emitting center portion 125a is positioned to face the center of the light emitting portion 110 and the light emitting frame portion 125b is positioned along the edge of the light emitting center portion 125a. The light emitting side portion 125c protrudes downward from the rim of the light emitting rim 125b and is coupled to the second light emitting sidewall portion 124b of the light emitting portion 122. [ The light emitting side wall part 125b and the light emitting side wall part 125b are spaced apart from each other so that a light emitting angle adjusting part 130 to be described later is spaced apart from the second light emitting sidewall part 124b It plays a role.

The light emitting angle adjusting unit 130 is provided for emitting the light emitted by the light emitting unit 110 to the first light guiding unit 300 to be described later. That is, inside the light emitting central portion 125a and the light emitting edge portion 125b. The detailed structure of the emission angle adjusting unit 130 will be described with reference to FIG.

The light receiving sidewall 224 includes a first light receiving sidewall 224a protruding from the light receiving portion 223 so as to face the light receiving portion 210 and a second light receiving sidewall 224b projecting from the upper end of the first light receiving sidewall 224a, And a second light receiving sidewall portion 224b protruding in the direction of the light receiving surface 225. The inclined portion 224c may be provided on the inner peripheral edge of the second light receiving side wall portion 224b.

The light receiving lid 225 covers the open upper portion of the second light receiving side wall portion 224b and includes a light receiving center portion 225a, a light receiving frame portion 225b and a light receiving side portion 225c. The light receiving center portion 225a and the light receiving frame portion 225b are positioned to face the light receiving portion 210. [ The light receiving center portion 225a is positioned to face the center of the light receiving portion 210 and the light receiving frame portion 225b is located along the edge of the light receiving center portion 225a. The light receiving side 225c protrudes downward from the rim of the light receiving frame 225b and is engaged with the second light receiving side wall 224b of the light receiving portion 222. [ The light receiving side portion 225c is formed such that the second light receiving side wall portion 224b and the light receiving frame portion 225b are spaced apart from each other so that the light receiving angle adjusting portion 230 described later is spaced apart from the second light receiving side wall portion 224b It plays a role.

The light receiving angle adjusting unit 230 is provided to condense the light reflected by the second light guiding unit 400 to the light receiving unit 210. The light receiving angle adjusting unit 230 is disposed inside the light receiving lid 225 facing the light receiving unit 210, The light receiving frame portion 225a and the light receiving frame portion 225b. The detailed structure of the light receiving angle adjusting unit 230 will be described with reference to FIG.

FIG. 6 is a view for explaining the light-emitting angle adjusting unit and the light-receiving angle adjusting unit of the right-side sensing apparatus having the reflecting unit according to the first embodiment of the present invention.

5 and 6, the light-emitting angle adjusting unit 130 and the light-receiving angle adjusting unit 230 may be a Fresnel lens that condenses light in a specific direction by refraction. Such a Fresnel lens is formed so as to have a smaller size as compared with a curved lens while maintaining the refracting ability as it is in a curved surface lens, thereby reducing the total volume.

The light emitting angle adjusting unit 130 includes a first central part 132 protruding from the light emitting central part 125a in a concentric circular pattern and inclined toward the center of the light emitting central part 125a, A first rim portion 134 protruding from the first central portion 132 in a concentric manner and having a center and being inclined toward the center of the light emitting central portion 125a at an angle different from that of the first central portion 132, . The first central portion 132 is formed to be sloped toward the center of the light emitting central portion 125a than the first rim portion 134.

Since the light emitting angle adjuster 130 includes the first center portion 132 and the first frame portion 134 that are inclined at different angles, the light emitting angle of the light emitted from the light emitting angle adjusting portion 130 The light passing through the first central portion 132 is refracted at a relatively small angle and is transmitted toward the center of the first light guide portion 300, The light is refracted at a relatively large angle and is transmitted in the direction of the edge of the first light guide 300. Since the light emitted by the light emitting unit 110 is transmitted to the first light guide unit 300 in a spread state while passing through the light emission angle adjusting unit 130, the light is guided to the wide measurement area of the windshield W So that it is possible to accurately detect the raindrop D falling over a wide area of the windshield W.

The light receiving angle adjusting unit 230 includes a second central portion 232 formed to be concentrically protruded from the light receiving central portion 225a and inclined toward the center of the light receiving central portion 225a, A second rim portion 234 protruding from the second central portion 232 concentrically with the center of the second central portion 232 and inclined toward the center of the light receiving center portion 225a at an angle different from that of the second central portion 232, . The second center portion 232 is formed to be inclined to the center of the light receiving center portion 225a from the second rim portion 234.

Since the light receiving angle adjuster 230 includes the second center portion 232 and the second frame portion 234 having different inclination angles, the light reflected by the second light guiding portion 400 is transmitted to the light receiving portion 210 The light passing through the second central portion 232 positioned near the light receiving portion 210 is refracted at a relatively small angle and is easily transmitted to the light receiving portion 210. When the second frame 220 is far away from the light receiving portion 210, The light passing through the portion 234 is refracted at a relatively large angle and is easily transmitted to the light receiving portion 210. If the light receiving angle adjusting unit 230 is not provided, the size of the light receiving unit 210 must be increased to easily receive the light reflected by the second light guiding unit 400 in a large area, There is a problem that it becomes large.

Since the light emitting angle adjusting unit 130 and the light receiving angle adjusting unit 230 are integrally formed inside the light emitting body 120 and the light receiving body 220, the manufacturing process is simplified, the total volume is reduced, It has the effect of being safely protected from the material.

FIG. 7 is a view for explaining a reflector of a right-side sensing device having a reflector according to a first embodiment of the present invention. FIG. 8 is a cross- And is a diagram illustrating a path of light reflected by the reflective portion of the apparatus.

7 and 8, the inclined portion 124c is formed on the inner peripheral edge of the second light-emitting sidewall portion 124b, and the reflective portion 140 is mounted on the inclined portion 124c. The reflector 140 reflects the light radiated from the light emitting portion 110 to the side of the light emitting main body 120 in the direction of the light emitting sidewall portion 124 in the direction of the windshield W. The reflector 140 is formed in a plate shape, A reflecting coating unit 144 coated on one side of the plate unit 142 to reflect light and a plurality of dimples 142 formed on the reflecting coating unit 144, (146).

The reflection coating part 144 reflects the light emitted by the light emitting part 110 in the direction of the windshield W. Since the light emitted by the light emitting part 110 in the direction of the light sidewall part 124 is easily guided in the direction of the windshield W, the light efficiency of the light emitting part 110 is increased.

Since the dimple portion 146 is formed concavely in the reflective coating portion 144, the dimple portion 146 is formed in the windshield W direction while varying the angle of the light radiated to the side of the light emitting main body 120 Reflection. As a result, the light radiated from the light emitting portion 110 to the side of the light emitting main body 120 is transmitted in various directions to the windshield W, so that the light from the light emitting portion 110 is uniformly guided to the windshield W (W) direction.

FIG. 9 is a view for explaining first and second light guide units of a right-side sensing apparatus having a reflection unit according to a first embodiment of the present invention.

9, the first light guide 300 includes a light emitting member 100 and a windshield 100 so as to guide the light irradiated by the light emitting unit 110 to a measurement region where the raindrop D of the windshield W falls, (W), and includes a first guide body 310 and a first guide lens 320.

The first guide body 310 is mounted at a position opposite to the light emitting member 100 of the windshield W so that a space is formed therein to receive the first guide lens 320 therein. At this time, the first guide body 310 may be attached to the windshield W by a bonding portion S including an adhesive material.

The first guide lens 320 is disposed inside the first guide body 310 so as to face the light emitting unit 110 and includes a first transparent plate 322 through which light is incident from the light emitting unit 110, A plurality of first protrusions 324 projecting obliquely toward the measurement region on one surface of the first plate 322 facing the windshield W so that light incident on the first plate 322 is guided obliquely toward the measurement region .

The second light guiding part 400 is provided between the light receiving part 200 and the windshield W so as to guide the light reflected by the raindrop D irradiated from the light emitting part 110 to the light receiving part 210 And includes a second guide body 410 and a second guide lens 420.

The second guide body 410 is mounted at a position opposite to the light receiving member 200 of the windshield W, and a space is formed in the second guide body 410 to accommodate the second guide lens 420 therein. At this time, the second guide body 410 may be attached to the windshield W by a bonding portion S including an adhesive material. The first guide body 310 and the second guide body 410 may be integrally connected to each other.

 The second guide lens 420 includes a first plate 322 made of a transparent material and disposed in the second guide body 410 so as to face the light receiving unit 210 and a second plate 422 facing the windshield W And a plurality of second protrusions 424 protruding to be inclined toward the measurement region. The light emitted from the light emitting unit 110 and reflected by the raindrop D formed on the measurement area is sequentially guided toward the second plate 422 and the light receiving unit 210 while being reflected by the second protrusion 424.

The light emitted from the light emitting unit 110 can be easily guided to the measurement region and the light reflected by the raindrop D can be reflected by the light guide unit 300. [ Light can be easily guided to the light receiving portion 210. [0064]

Hereinafter, the operation of the propriety sensing apparatus having the reflective unit according to the first preferred embodiment of the present invention will be described.

9, when light is emitted from the light emitting unit 110, the light is guided to the first light guide unit 300 through the light emission angle adjusting unit 130, and then is guided to the measurement region direction of the windshield W . At this time, if a raindrop D exists in the measurement area of the windshield W, the light is reflected by the raindrop D and guided to the second light guide part 400, do. Then, the light guided in the direction of the light receiving member 200 is condensed in the direction of the light receiving unit 210 while passing through the light receiving angle adjusting unit 230, and the light receiving unit 210 measures the light intensity.

If the intensity of the light measured by the light receiving unit 210 is equal to or greater than the reference value, a control unit (not shown) for controlling the wiper of the vehicle operates the wiper or controls the operating speed of the wiper.

FIG. 10 and FIG. 11 are views schematically showing a state in which the light emitting member and the light receiving member are disassembled in the right-side sensing apparatus having the reflector according to the second embodiment of the present invention.

10 and 11, an image sensing apparatus 1000 including a reflection unit according to a second preferred embodiment of the present invention includes a light emitting member 105, a light receiving member 205, and a reflection unit 270 .

The light emitting member 105 includes a light emitting body 110 in which the light emitting unit 110 and the light emitting unit 110 are received and the light receiving member 205 includes a light receiving unit 210 and a light receiving unit 210 250). Since the light emitting unit 110 and the light receiving unit 210 are the same as those in the first embodiment, a detailed description thereof will be omitted. The light emitting main body 150 and the light receiving main body 250 will be described simultaneously with reference to FIGS. 10 to 12, since the light emitting main body 150 and the light receiving main body 250 have the same or similar outer shapes.

The light emitting body 150 includes a light emitting portion 152 formed to receive the light emitting portion 110 and a light emitting cover 156 covering the opened upper portion of the light emitting portion 152, An emission angle adjusting unit 160 may be provided. The light emitting part 152 includes a light emitting part 153 on which the light emitting part 110 is mounted and a light emitting sidewall part 154 protruding from the edge of the light emitting part 153 in the direction of the light emitting lid 156 . The light-emitting mount 153 may be detachably coupled to the light-emitting sidewall 154, and may be electrically connected to the light-emitting unit 110.

The light emitting cover 156 is formed to cover the first light emitting opening 154b (shown in FIG. 12) of the light emitting sidewall 154. An inner side of the light emitting lid 156 facing the light emitting portion 110 has a light emitting center portion 156a (see FIG. 12) positioned at the center thereof and a light emitting edge portion 156b: Fig. 12).

The light emission angle adjusting unit 160 is for emitting the light emitted by the light emitting unit 110 to the first light guiding unit 300. For example, the light emitting angle adjusting unit 160 may be an aspherical lens whose refracting surface is formed of a curved surface other than a spherical surface. have. The light emitting angle adjusting unit 160 may be formed to be convex on the inner side of the light emitting lid 156 facing the light emitting unit 110. More specifically, And may be formed to be convex in the direction of the light emitting central portion 156a.

The light receiving main body 250 includes a light receiving portion 252 formed to receive the light receiving portion 210 and a light receiving cover 256 covering the opened upper portion of the light receiving portion 252, The angle adjusting unit 260 may further be provided. The light receiving portion 252 includes a light receiving portion 253 on which the light receiving portion 210 is mounted and a light receiving side wall portion 254 protruding in the direction of the light receiving cover 256 from the rim of the light receiving portion 253. The light receiving part 253 may be detachably coupled to the light receiving sidewall part 254 and may be electrically connected to the light receiving part 210.

The light receiving cover 256 is formed so as to cover the first light receiving open portion 254b (shown in Fig. 12) of the light receiving sidewall portion 254. The inner side of the light receiving lid 256 facing the light receiving portion 210 has a light receiving central portion 256a (shown in FIG. 12) located at the center thereof and a light receiving frame portion 256b positioned along the rim of the light receiving central portion 256a : Fig. 12).

The light receiving angle adjusting unit 260 guides the light guided by the second light guiding unit 400 to the light receiving unit 210. For example, the light receiving angle adjusting unit 260 may be an aspherical lens whose refracting surface is formed of a curved surface other than the spherical surface . The light receiving angle adjusting unit 260 may be formed to be convex on the inner side of the light receiving lid 256 facing the light receiving unit 210. More specifically, And may be formed to be convex in the direction of the center portion 256a.

FIG. 12 is a view illustrating a detailed structure of a light emitting sidewall, a light receiving sidewall, and a reflector according to a preferred embodiment of the present invention.

10 to 12, the light emitting sidewall 154 is formed, for example, in a cylindrical shape, and a light emitting space portion 154a, which is an empty space, is formed therein. A first light emitting opening 154b and a second light emitting opening 154c are formed so that one side and the other side of the light emitting space 154a are opened and the light emitting cover 156 is attached to the first light emitting opening 154b, And the light emitting part 153a is seated in the second light emitting opening part 154c so that the sectional area of the light emitting part 154a becomes wider toward the first light emitting opening part 154b The first light emitting opening 154b is formed to have a larger diameter than the second light emitting opening 154c and the light emitting sidewall 154 facing the light emitting space 154a And the inner periphery has a light emission oblique side portion 155 inclined outward toward the first light emitting opening portion 154b.

The light receiving side wall portion 254 is formed by, for example, a cylindrical shape, and a light receiving space portion 254a, which is an empty space, is formed therein. The first light receiving and opening portion 254b and the second light receiving and opening portion 254c are formed such that one side and the other side of the light receiving space portion 254a are opened and the light receiving cover 256 is covered with the first light receiving and opening portion 254b And the light receiving seat 253 is seated in the second light receiving opening 254c. Here, the light receiving space portion 254a may be formed to have a larger cross sectional area toward the first light receiving open portion 254b. As a result, the first light receiving open portion 254b is formed to have a larger diameter than the second light receiving open portion 254c, and the inner peripheral edge of the light receiving side wall portion 254, which faces the light receiving space portion 254a, And a light-receiving sloping side portion 255 inclined outward toward the opening 254b is formed. And the reflection portion 270 is provided on the light-receiving slant side 255.

The reflection unit 270 reflects light reflected by the raindrop formed on the windshield from the light emitting unit 110 in the direction of the light receiving unit 210. The progress of the light by the reflection unit 270 is shown in FIG. I will explain. The reflection portion 270 may be formed to cover a part or the whole of the light-receiving slant side 255 along the inclined angle of the light-receiving slant side 255. Since the reflection portion 270 is inclined to the light receiving inclined side portion 255 formed to be inclined in the light receiving portion 252, light reflected toward the light receiving portion 252 by the raindrop formed on the windshield is reflected And is easily guided toward the light receiving portion 210 after being reflected by the light receiving portion 270, thereby increasing the light receiving efficiency of the light receiving portion 210. On the other hand, in the second embodiment, the reflective portion 270 is configured to be provided on the light receiving side wall portion 254. The present invention is not limited thereto, and in some cases, the reflection portion 270 may be provided in the light-emitting sidewall portion 154. [

FIG. 13 is a view illustrating a structure in which a light emitting lid and a light receiving lid of a right side sensing device having a reflector according to a preferred embodiment of the present invention are coupled to a light receiving portion and a light receiving portion.

10 and 13, light emitting coupling protrusions 157 are protruded from both sides of the light emitting lid 156 on the upper side of the light emitting receiving portion 152, that is, the upper side of the light emitting sidewall 154. A light emitting inserting portion 154d is formed on the light emitting sidewall 154 in a concave manner so that the light emitting engaging protrusion 157 is inserted and coupled. Since the light emitting cover 156 is formed in the light emitting cover 156 and the light emitting insulator 154d is formed in the light emitting sidewall 154, .

Receiving projections 257 are protruded from both sides of the light-receiving lid 256 to the upper side of the light-receiving portion 252, that is, the upper side of the light-receiving sidewall portion 254. A light receiving portion 254d is formed concavely on the light receiving side wall portion 254 so as to receive and receive the light receiving and coupling protrusions 257 therein.

FIG. 14 is a view schematically illustrating a process of receiving light emitted from a light emitting unit of a right-side sensing apparatus having a reflector according to a second embodiment of the present invention, to a light receiving unit.

Referring to FIG. 14, when light is emitted from the light emitting unit 110, the light is guided to the first light guide unit 300 through the light emission angle adjusting unit 160, and then refracted in the direction of the measurement region of the windshield W do. At this time, if a raindrop D exists in the measurement area of the windshield W, the light is reflected by the raindrop D and guided to the second light guide part 400, do. Then, the light guided in the direction of the light receiving member 205 is condensed in the direction of the light receiving unit 210 while passing the light receiving angle adjusting unit 260, and the light receiving unit 210 measures the light intensity. If the intensity of the light measured by the light receiving unit 210 is equal to or greater than the reference value, a control unit (not shown) for controlling the wiper of the vehicle operates the wiper or controls the operating speed of the wiper.

FIG. 15 is a schematic view showing the inside of a light emitting member and a light receiving member of a proprietary sensing apparatus having a reflector according to a third preferred embodiment of the present invention.

Referring to FIG. 15, the apparatus 1000 for detecting a right-handed object according to the third embodiment of the present invention includes a light-emitting angle adjusting unit 162 and a light-receiving angle adjusting unit 262, Is the same as that of the second embodiment except for the difference. That is, the proprioception sensing apparatus 1000 including the reflection unit according to the third embodiment of the present invention includes a light emitting member 105, a light receiving member 205, and a reflection unit 270. The light emitting member 105 includes a light emitting portion 110 and a light emitting body 150 and the light receiving member 205 includes a light receiving portion 210 and a light receiving body 250. A light emitting angle adjusting unit 162 is formed on the light emitting lid 156 of the light emitting body 150 and a light receiving angle adjusting unit 262 is formed on the light receiving lid 256 of the light receiving body 250.

The light emission angle adjusting unit 162 is for emitting the light emitted by the light emitting unit 110 to the first light guide unit 300. For example, the light emission angle adjusting unit 162 may be an aspherical lens whose refracting surface is formed of a curved surface other than the spherical surface have. The light emitting angle adjuster 162 may be convexly formed inside the light emitting lid 156 facing the light emitting unit 110. More specifically, In the direction of the center of the light emitting central portion 156a.

The light receiving angle adjusting unit 262 is for guiding the light guided by the second light guiding unit 400 to the light receiving unit 210. For example, the light receiving angle adjusting unit 262 may be an aspherical lens whose refracting surface is formed of a curved surface other than the spherical surface . The light receiving angle adjusting unit 262 may be formed to be convex on the inner side of the light receiving lid 256 facing the light receiving unit 210. More specifically, And may be formed to be convex toward the center of the light receiving center portion 256a.

Since the light receiving frame portion 256b of the light receiving lid 256 without the light receiving angle adjusting portion 262 is positioned to face the reflecting portion 270, the light receiving lid 256 The light guided in the direction of the light receiving frame portion 256b of the second light guiding portion 256 is guided in the direction of the light receiving portion 210 in a state of being reflected by the reflecting portion 270 through the light receiving frame portion 256b, The light guided in the direction of the light receiving center 256a of the light receiving cover 256 is guided to the light receiving portion 210 through the light receiving angle adjusting portion 262. [

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined in the appended claims. It should be understood that the technical idea belonging to the scope of the claims also belongs to the present invention.

1000: a target sensing device having a reflecting portion
100, 105: light emitting member 110:
120: light emitting body 122: light emitting receptacle
123: light emitting seat part 124: light emitting side wall part
124a: first light emitting sidewall part 124b: second light emitting sidewall part
124c: inclined portion 125: luminescent cover
125a: emission center portion 125b: emission edge portion
125c: light emitting side part 130:
132: first central portion 134: first rim portion
140: reflective part 142:
144: reflection coating part 146: dimple part
150: light emitting body 152:
153: light-emitting seat part 154: light-emitting sidewall part
154a: light emitting space part 154b: first light emitting opening part
154c: second light emitting opening portion 154d: light emitting insertion portion
155: light emitting oblique side portion 156: light emitting cover
156a: emission center portion 156b: emission edge portion
157: luminescence coupling protrusions 160, 162:
200, 205: light receiving member 210:
220: light receiving body 222: light receiving portion
223: light receiving part 224: light receiving side wall part
224a: first light receiving side wall portion 224b: second light receiving side wall portion
224c: an inclined portion 225: a light receiving cover
225a: light receiving central portion 225b: light receiving frame portion
225c: light receiving side portion 230: light receiving angle adjusting portion
232: second central portion 234: second rim portion
250: light receiving body 252: light receiving portion
253: light receiving part 254: light receiving side wall part
254a: light receiving space portion 254b: first light receiving open portion
254c: second light receiving opening 254d:
255: light receiving inclined side 256: light receiving cover
256a: light receiving center part 256b: light receiving frame part
257: light receiving coupling protrusions 260, 262: receiving angle adjusting section
270: reflective part 300: first light guide part
310: first guide body 320: first guide lens
322: first plate 324: first protrusion
400: second light guide part 410: second guide body
420: second guide lens 422: second plate
424: second protrusion

Claims (19)

A light emitting member having a light emitting body for emitting light in a windshield direction of the vehicle, and a light emitting body for receiving the light emitting portion; And
And a light receiving unit having a light receiving unit for receiving the light reflected from the windshield and reflected by the raindrop irradiated from the light emitting unit,
A reflection portion is provided on the inner side of the light emitting body not facing the windshield so as to reflect the light irradiated to the side of the light emitting body among the light irradiated by the light emitting portion in the windshield direction,
Wherein the light emitting body includes a light emitting accommodating portion formed to receive the light emitting portion and a light emitting cover covering an open upper portion of the light emitting accommodating portion,
Wherein the light-emitting accommodating portion includes a light-emitting mount portion on which the light-emitting portion is seated, and a light-emitting sidewall portion protruding from the rim of the light-
Wherein the reflective portion is provided on the light-emitting sidewall portion,
The light emitting sidewall portion includes a first light emitting sidewall portion protruding to face the light emitting portion along a rim of the light emitting mount portion and a second light emitting sidewall portion protruding from the end portion of the first light emitting sidewall portion toward the light emitting lid And an inner peripheral edge of the second light-emitting sidewall portion is provided with an inclined portion that is inclined outwardly toward the windshield direction,
Wherein the reflective portion is provided on the inclined portion.
A light emitting member having a light emitting body for emitting light in a windshield direction of the vehicle, and a light emitting body for receiving the light emitting portion; And
And a light receiving unit having a light receiving unit for receiving the light reflected from the windshield and reflected by the raindrop irradiated from the light emitting unit,
A reflection portion is provided on the inner side of the light receiving body not facing the windshield so that light reflected by the raindrop irradiated from the light emitting portion and reflected by the windshield is reflected toward the light receiving portion,
Wherein the light receiving body includes a light receiving portion formed to receive the light receiving portion and a light receiving cover covering the opened upper portion of the light receiving portion,
Wherein the light receiving portion includes a light receiving portion on which the light receiving portion is seated and a light receiving side wall portion protruding from the rim of the light receiving portion in the direction of the light receiving lid,
Wherein the reflecting portion is provided on the light receiving side wall portion,
Wherein the light receiving side wall portion has a first opening portion and a second opening portion formed so as to have a hollow space therein and open at one side and the other side of the space portion, the light receiving lid is provided at the first opening portion, The light receiving part is provided in the opening part,
Wherein the space portion is formed to have a larger cross sectional area toward the first opening portion, the first opening portion is formed to have a larger diameter than the second opening portion, and the inner peripheral portion of the light receiving side wall portion facing the space portion Is formed with an inclined side portion inclined outward in the direction of the first opening portion,
Wherein the reflective portion is provided on the oblique side portion.
A light emitting member having a light emitting body for emitting light in a windshield direction of the vehicle, and a light emitting body for receiving the light emitting portion; And
And a light receiving unit having a light receiving unit for receiving the light reflected from the windshield and reflected by the raindrop irradiated from the light emitting unit,
A reflection portion is provided on the inner side of the light emitting body not facing the windshield so as to reflect the light irradiated to the side of the light emitting body among the light irradiated by the light emitting portion in the windshield direction,
A measurement area is provided between the light emitting member of the windshield and the light receiving member,
A first light guide portion is provided between the light emitting member and the windshield so as to guide the light irradiated by the light emitting portion to the measurement region,
And a second light guide portion is provided between the light receiving portion and the windshield so as to guide the light emitted from the light emitting portion and reflected by the raindrop formed in the measurement region to the light receiving portion,
Wherein the first light guide comprises:
A first guide body mounted at a position opposite to the light emitting member of the windshield; And
A first plate provided in the first guide body for receiving light from the light emitting portion and a second plate disposed on one surface of the first plate facing the windshield so that light incident on the first plate is guided obliquely toward the measurement region And a first guide lens having a plurality of first projections protruding to be inclined toward the measurement region,
Wherein the second light guide comprises:
A second guide body mounted at a position opposite to the light receiving member of the windshield; And
And a second guide lens having a second plate provided in the second guide body and a plurality of second projections protruding to be inclined toward a measurement area on one surface of the second plate facing the windshield,
Wherein the light emitted from the light emitting unit and reflected by the raindrop formed in the measurement region is reflected by the second protrusion and is guided sequentially toward the second plate and the light receiving unit.
A light emitting member having a light emitting body for emitting light in a windshield direction of the vehicle, and a light emitting body for receiving the light emitting portion; And
And a light receiving unit having a light receiving unit for receiving the light reflected from the windshield and reflected by the raindrop irradiated from the light emitting unit,
A reflection portion is provided on the inner side of the light receiving body not facing the windshield so that light reflected by the raindrop irradiated from the light emitting portion and reflected by the windshield is reflected toward the light receiving portion,
A measurement area is provided between the light emitting member of the windshield and the light receiving member,
A first light guide portion is provided between the light emitting member and the windshield so as to guide the light irradiated by the light emitting portion to the measurement region,
And a second light guide portion is provided between the light receiving portion and the windshield so as to guide the light emitted from the light emitting portion and reflected by the raindrop formed in the measurement region to the light receiving portion,
Wherein the first light guide comprises:
A first guide body mounted at a position opposite to the light emitting member of the windshield; And
A first plate provided in the first guide body for receiving light from the light emitting portion and a second plate disposed on one surface of the first plate facing the windshield so that light incident on the first plate is guided obliquely toward the measurement region And a first guide lens having a plurality of first projections protruding to be inclined toward the measurement region,
Wherein the second light guide comprises:
A second guide body mounted at a position opposite to the light receiving member of the windshield; And
And a second guide lens having a second plate provided in the second guide body and a plurality of second projections protruding to be inclined toward a measurement area on one surface of the second plate facing the windshield,
Wherein the light emitted from the light emitting unit and reflected by the raindrop formed in the measurement region is reflected by the second protrusion and is guided sequentially toward the second plate and the light receiving unit.
A light emitting member having a light emitting body for emitting light in a windshield direction of the vehicle, and a light emitting body for receiving the light emitting portion; And
And a light receiving unit having a light receiving unit for receiving the light reflected from the windshield and reflected by the raindrop irradiated from the light emitting unit,
A reflection portion is provided on the inner side of the light emitting body not facing the windshield so as to reflect the light irradiated to the side of the light emitting body among the light irradiated by the light emitting portion in the windshield direction,
A measurement area is provided between the light emitting member of the windshield and the light receiving member,
A first light guide portion is provided between the light emitting member and the windshield so as to guide the light irradiated by the light emitting portion to the measurement region,
And a second light guide portion is provided between the light receiving portion and the windshield so as to guide the light emitted from the light emitting portion and reflected by the raindrop formed in the measurement region to the light receiving portion,
The light emitting device according to claim 1, wherein the light emitting body includes: a light emitting accommodating portion formed concavely to receive the light emitting portion, the light emitting accommodating portion including the reflective portion on a side thereof; a light emitting cover covering the opened upper portion of the light emitting accommodating portion; And an emission angle adjusting unit formed on the inside of the light emitting lid facing the light emitting unit to emit light to the light guide unit,
The light receiving body includes a light receiving portion formed concavely so as to receive the light receiving portion, a light receiving cover covering the opened upper portion of the light receiving portion, and a light receiving portion that condenses light reflected by the second light guiding portion into the light receiving portion And a light receiving angle adjusting unit formed on the inside of the light receiving lid facing each other,
Wherein the light-emitting angle adjusting unit and the light-receiving angle adjusting unit are constituted by a Fresnel lens,
And an inner side of the light emitting lid facing the light emitting portion includes an emitting center portion located at the center thereof and an emitting edge portion located along the edge of the emitting center portion,
Wherein the light emitting angle adjusting unit includes a first center part protruding from the light emitting center part in a concentric circular shape and inclined toward the center of the light emitting center part, a plurality of concentric circular protrusions formed on the light emitting frame part, And a first edge portion formed to be inclined toward the center of the light emitting center portion at an angle different from the center portion,
The inside of the light receiving lid facing the light receiving portion includes a light receiving central portion located at the center thereof and a light receiving frame portion located along the rim of the light receiving central portion,
Wherein the light receiving angle adjusting unit includes a second central portion protruding from the light receiving central portion in a concentric circular shape and inclined toward the center of the light receiving center portion, a plurality of concentric circular protruding outer peripheral portions formed on the light receiving frame portion, And a second edge portion formed to be inclined toward the center of the light receiving center portion at a different angle from the central portion.
A light emitting member having a light emitting body for emitting light in a windshield direction of the vehicle, and a light emitting body for receiving the light emitting portion; And
And a light receiving unit having a light receiving unit for receiving the light reflected from the windshield and reflected by the raindrop irradiated from the light emitting unit,
A reflection portion is provided on the inner side of the light receiving body not facing the windshield so that light reflected by the raindrop irradiated from the light emitting portion and reflected by the windshield is reflected toward the light receiving portion,
A measurement area is provided between the light emitting member of the windshield and the light receiving member,
A first light guide portion is provided between the light emitting member and the windshield so as to guide the light irradiated by the light emitting portion to the measurement region,
And a second light guide portion is provided between the light receiving portion and the windshield so as to guide the light emitted from the light emitting portion and reflected by the raindrop formed in the measurement region to the light receiving portion,
The light emitting device according to claim 1, wherein the light emitting body includes: a light emitting accommodating portion formed concavely to receive the light emitting portion, the light emitting accommodating portion including the reflective portion on a side thereof; a light emitting cover covering the opened upper portion of the light emitting accommodating portion; And an emission angle adjusting unit formed on the inside of the light emitting lid facing the light emitting unit to emit light to the light guide unit,
The light receiving body includes a light receiving portion formed concavely so as to receive the light receiving portion, a light receiving cover covering the opened upper portion of the light receiving portion, and a light receiving portion that condenses light reflected by the second light guiding portion into the light receiving portion And a light receiving angle adjusting unit formed on the inside of the light receiving lid facing each other,
Wherein the light-emitting angle adjusting unit and the light-receiving angle adjusting unit are constituted by a Fresnel lens,
And an inner side of the light emitting lid facing the light emitting portion includes an emitting center portion located at the center thereof and an emitting edge portion located along the edge of the emitting center portion,
Wherein the light emitting angle adjusting unit includes a first center part protruding from the light emitting center part in a concentric circular shape and inclined toward the center of the light emitting center part, a plurality of concentric circular protrusions formed on the light emitting frame part, And a first edge portion formed to be inclined toward the center of the light emitting center portion at an angle different from the center portion,
The inside of the light receiving lid facing the light receiving portion includes a light receiving central portion located at the center thereof and a light receiving frame portion located along the rim of the light receiving central portion,
Wherein the light receiving angle adjusting unit includes a second central portion protruding from the light receiving central portion in a concentric circular shape and inclined toward the center of the light receiving center portion, a plurality of concentric circular protruding outer peripheral portions formed on the light receiving frame portion, And a second edge portion formed to be inclined toward the center of the light receiving center portion at a different angle from the central portion.
7. The compound according to any one of claims 1 to 6,
The reflector includes:
A reflector coated on one side of the plate to reflect the light, and a plurality of dimples formed on the reflective coating, the dimple being recessed in the reflective coating.
The method according to claim 3 or 4,
Wherein the light emitting body includes a light emitting accommodating portion formed to receive the light emitting portion and a light emitting cover covering an open upper portion of the light emitting accommodating portion,
Wherein the light receiving body includes a light receiving portion formed to receive the light receiving portion and a light receiving cover covering the opened upper portion of the light receiving portion,
Wherein the light emitting portion and the light receiving portion are made of a material that does not allow light to pass therethrough.
3. The method according to claim 1 or 2,
A measurement area is provided between the light emitting member of the windshield and the light receiving member,
A first light guide portion is provided between the light emitting member and the windshield so as to guide the light irradiated by the light emitting portion to the measurement region,
And a second light guide portion is provided between the light receiving portion and the windshield so as to guide the light emitted from the light emitting portion and reflected by the raindrop formed in the measurement region to the light receiving portion.
delete The method according to claim 3 or 4,
The light emitting device according to claim 1, wherein the light emitting body includes: a light emitting accommodating portion formed concavely to receive the light emitting portion, the light emitting accommodating portion including the reflective portion on a side thereof; a light emitting cover covering the opened upper portion of the light emitting accommodating portion; And an emission angle adjusting unit formed on the inside of the light emitting lid facing the light emitting unit to emit light to the light guide unit,
The light receiving body includes a light receiving portion formed concavely so as to receive the light receiving portion, a light receiving cover covering the opened upper portion of the light receiving portion, and a light receiving portion that condenses light reflected by the second light guiding portion into the light receiving portion And a light receiving angle adjusting unit formed on an inner side of the light receiving lid opposite to the light receiving lid.
12. The method of claim 11,
Wherein the light emitting angle adjusting unit and the light receiving angle adjusting unit are configured by a Fresnel lens.
delete The method according to claim 5 or 6,
Wherein the first central portion is formed to be inclined toward the center of the light emitting center portion than the first edge portion,
And the second central portion is formed to be inclined toward the center of the light receiving center portion than the second rim portion.
The method according to claim 5 or 6,
Wherein the light emitting lid further includes a light emitting side portion protruding from a rim of the light emitting rim toward the light emitting accommodation portion, the light emitting angle adjusting portion being positioned to be spaced apart from the light emitting accommodation portion by a height of the light emitting side portion,
Wherein the light receiving lid further comprises a light receiving side portion protruding from the rim of the light receiving frame toward the light receiving portion, and the light receiving angle adjusting portion is positioned to be spaced apart from the light receiving portion by the height of the light receiving side portion And a reflector.
12. The method of claim 11,
And an inner side of the light emitting lid facing the light emitting portion includes an emitting center portion located at the center thereof and an emitting edge portion located along the edge of the emitting center portion,
Wherein the light emission angle adjusting portion is formed to be convex from the light emitting frame portion toward the light emitting center portion,
The inside of the light receiving lid facing the light receiving portion includes a light receiving central portion located at the center thereof and a light receiving frame portion located along the rim of the light receiving central portion,
Wherein the light receiving angle adjusting portion is formed to be convex from the light receiving frame portion toward the light receiving center portion.
12. The method of claim 11,
And an inner side of the light emitting lid facing the light emitting portion includes an emitting center portion located at the center thereof and an emitting edge portion located along the edge of the emitting center portion,
Wherein the light emission angle adjusting portion is formed to be convex from the rim of the light emitting central portion toward the center of the light emitting central portion,
The inside of the light receiving lid facing the light receiving portion includes a light receiving central portion located at the center thereof and a light receiving frame portion located along the rim of the light receiving central portion,
Wherein the light receiving angle adjusting portion is formed to be convex in a direction toward the center of the light receiving center portion from a rim of the light receiving center portion.
12. The method of claim 11,
Wherein the light emission angle adjusting unit or the light receiving angle adjusting unit comprises an aspherical lens.
12. The method of claim 11,
Emitting lugs are formed on both sides of the luminescent lid so as to protrude upward in the light-receiving portion,
A light emitting insertion portion is formed on an upper side of the light emitting and receiving portion,
Receiving bosses protruding from both sides of the light-receiving lid in the upward direction of the light-
And a light receiving portion is formed on an upper side of the light receiving portion so that the light receiving and coupling protrusion is inserted and coupled.

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