阅读说明：本技术 车辆的隐藏式车灯装置 (Hidden lamp device for vehicle ) 是由 李淳壹 于 2020-11-17 设计创作，主要内容包括：本发明涉及车辆的隐藏式车灯装置。车辆的隐藏式车灯装置配置为从车辆的格栅发射光,并且在不发射光时,可以保持格栅的美观性。隐藏式车灯装置包括：格栅、网格板和光学模块,所述格栅具有形成图案的外部表面,所述图案包括多个网格；所述网格板分别提供给多个网格中的一些或全部；所述光学模块设置在每个网格板的内侧,使得网格板在光学模块关断时形成格栅的图案,而在光学模块接通时通过网格板发射光以使网格板用作车辆的照明。(The invention relates to a hidden lamp device of a vehicle. The recessed lamp device of the vehicle is configured to emit light from a grille of the vehicle, and can maintain the aesthetic property of the grille when light is not emitted. The hidden car light device includes: a grid having an exterior surface forming a pattern, the pattern comprising a plurality of cells, a cell plate, and an optical module; the grid plates are respectively provided for some or all of the plurality of grids; the optical module is disposed inside each of the mesh panels such that the mesh panels form a pattern of a grid when the optical module is off, and light is emitted through the mesh panels when the optical module is on to cause the mesh panels to serve as lighting for the vehicle.)

1. A recessed light device for a vehicle, comprising:

a grid having an exterior surface forming a pattern, the pattern comprising a plurality of cells;

a mesh plate respectively provided to some or all of the plurality of meshes, each of the mesh plates being connected to the associated mesh in the same shape as that of the associated mesh to form a surface of the associated mesh; and

an optical module disposed inside each of the mesh plates such that the mesh plates form a pattern of a grid when the optical module is turned off, and emit light through the mesh plates to be used as illumination of a vehicle when the optical module is turned on.

2. The recessed vehicular lamp device according to claim 1, wherein:

the grating comprises grid plates with the same pattern shape;

the optical modules are respectively disposed inside some of the plurality of mesh plates or inside all of the plurality of mesh plates.

3. The recessed vehicular lamp device according to claim 1, wherein each of the mesh plates includes a plurality of light emitting areas formed in a mesh shape.

4. The recessed vehicular lamp device according to claim 1, wherein the grille and the light emitting region corresponding to the optical module are diamond-shaped.

5. The recessed vehicular lamp device according to claim 1, wherein the light of the optical module is emitted to the outside through a perforated hole provided in the light emitting region.

6. The recessed vehicular lamp device according to claim 5, wherein the entire area of the perforation hole is configured to exceed at least more than half of the entire area of the light emitting region.

7. The recessed vehicle lamp apparatus according to claim 5, wherein the perforated hole is located on an upper side of the light emitting region, and a non-perforated portion that does not transmit light is provided on a lower side of the light emitting region.

8. The recessed vehicle light device of claim 1, wherein the optical module comprises:

a light source for emitting light;

a reflector for reflecting light from the light source; and

a lens providing a light emitting region through which light reflected by the reflector is emitted to the outside, and formed in the same pattern shape as the grating.

9. The recessed vehicle light device of claim 1, wherein a plurality of optical modules are disposed on a grille and the optical modules are configured to be individually turned on and off.

Technical Field

The present invention relates to a recessed vehicular lamp device in which light is emitted from a grille of a vehicle.

Background

Generally, a vehicle is provided with one or more lamps (exterior lamps) for making it easier for a driver to see an object in a traveling direction during night driving, and for notifying other vehicles or pedestrians about a traveling state of the vehicle. For example, each vehicle is equipped with a headlamp (each headlamp is also referred to as a headlight) for illuminating the road in front of the vehicle.

The lamps mounted on the vehicle may be classified into headlamps, fog lamps, turn indicator lamps (turn signal lamps), brake lamps, and backup lamps, and the direction of emitting light to the road surface is differently set according to the type of the exterior lamps.

Such a vehicular lamp can be generally used for recognizing an object by emitting light from a bulb arranged in a forward direction, but in recent years, a light guide may be provided to improve an exterior design so that the emitted light has a specific image.

However, since the space of the vehicle for accommodating the lamps such as the head lamp and the tail lamp is limited and the lamps cannot exchange information, there is a limitation from the viewpoint of the practicality and design of the conventional lamp.

The above description as background is only intended to improve understanding of the background of the invention and should not be taken as an admission that they correspond to prior art known to those skilled in the art.

Disclosure of Invention

The present invention provides a hidden type vehicle lamp device in which the design of a grill is maintained by realizing the beauty of the grill when a vehicle lamp is turned off.

According to the present invention for achieving the above object, a recessed lamp device for a vehicle includes: a grid having an exterior surface forming a pattern, the pattern comprising a plurality of cells, a cell plate, and an optical module; the mesh plates are respectively provided to some or all of the plurality of meshes, each of the mesh plates is connected to the associated mesh in the same shape as that of the associated mesh to form a surface of the associated mesh; the optical module is disposed inside each of the mesh plates such that the mesh plates form a pattern of a grid when the optical module is turned off, and light is emitted through the mesh plates to be used as illumination of a vehicle when the optical module is turned on.

The grating may include mesh plates having the same pattern shape, and the optical modules may be respectively disposed at inner sides of some of the plurality of mesh plates or inner sides of all of the plurality of mesh plates.

Each of the mesh plates may include a plurality of light emitting areas formed in a mesh shape.

The grating and the light emitting area corresponding to the optical module may be in a diamond shape.

The light of the optical module is emitted to the outside through the perforation holes provided in the light emitting region.

The total area of the perforation holes may be configured to exceed at least more than half of the total area of the light emitting area.

The perforated holes may be located at an upper side of the light emitting region, and the non-perforated portion that does not transmit light may be disposed at a lower side of the light emitting region.

The optical module may include: a light source, a reflector and a lens, the light source for emitting light; the reflector is used for reflecting light from the light source; the lens provides a light emitting region through which light reflected by the reflector is emitted to the outside, and is formed in the same pattern shape as the grating.

A plurality of optical modules may be disposed on the grid and may be individually switched on and off.

The recessed vehicle lamp device having the above-described structure is configured to emit light from a grille of a vehicle, and when light is not emitted, the aesthetic appearance of the grille can be achieved on an irradiated area, thereby maintaining the design of the grille.

Drawings

Fig. 1 is a schematic view showing a recessed vehicle lamp apparatus according to an exemplary embodiment of the present invention.

Fig. 2 to 6 are schematic views showing the recessed type vehicular lamp device shown in fig. 1.

Fig. 7 to 9 are graphs respectively showing the results of the light distribution efficiency experiment when the area of the perforation is less than 50% of the entire area of the light-emitting region, when the area of the perforation is 60% or more of the entire area of the light-emitting region, and when the area of the perforation is 60% or more in a state of being located on the upper side of the light-emitting region.

Fig. 10 and 11 are schematic views illustrating transmission messages through the hidden vehicle lamp device shown in fig. 1.

Detailed Description

It should be understood that the term "vehicle" or "vehicular" or other similar terms as used herein generally includes motor vehicles, such as passenger automobiles including Sport Utility Vehicles (SUVs), buses, vans, various commercial vehicles, watercraft including various boats, ships, aircraft, and the like, and includes hybrid vehicles, electric vehicles, plug-in hybrid electric vehicles, hydrogen powered vehicles, and other alternative fuel vehicles (e.g., fuels derived from non-petroleum sources). As referred to herein, a hybrid vehicle is a vehicle having two or more power sources, such as a vehicle having both gasoline power and electric power.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, values, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, values, steps, operations, elements, components, and/or groups thereof. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. Throughout this specification, unless explicitly described to the contrary, the word "comprise", and variations such as "comprises" or "comprising", will be understood to imply the inclusion of stated elements but not the exclusion of any other elements. In addition, the terms "unit," "device," "means," and "module" described in the specification mean a unit for performing at least one of functions and operations, and may be implemented by hardware components or software components, and combinations thereof.

Furthermore, the control logic of the present invention may be embodied as a non-transitory computer readable medium on a computer readable medium containing executable program instructions for execution by a processor, controller, or the like. Examples of computer readable media include, but are not limited to, ROM, RAM, Compact Disc (CD) -ROM, magnetic tape, floppy disk, flash drive, smart card, and optical data storage. The computer readable medium CAN also be distributed over network coupled computer systems so that the computer readable medium is stored and executed in a distributed fashion, for example, by a telematics server or a Controller Area Network (CAN).

Hereinafter, a recessed vehicular lamp device according to a preferred exemplary embodiment of the present invention will be described with reference to the accompanying drawings.

Fig. 1 is a schematic view illustrating a recessed vehicle lamp apparatus according to an exemplary embodiment of the present invention, fig. 2 to 6 are schematic views illustrating the recessed vehicle lamp apparatus illustrated in fig. 1, fig. 7 to 9 are graphs illustrating results of a light distribution efficiency experiment when an area of a perforation hole is 60% or more of a total area of a light emitting area when the area of the perforation hole is less than 50% of the total area of the light emitting area, and when the area of the perforation hole is 60% or more in a state where the perforation hole is located at an upper side of the light emitting area, and fig. 10 and 11 are schematic views illustrating a transmission message through the recessed vehicle lamp apparatus illustrated in fig. 1.

In the recessed vehicle lamp apparatus according to the present invention, as shown in fig. 1 and 2, the optical module 100 for realizing illumination of the vehicle is disposed on the grill 200 so that light of the optical module 100 is emitted through the grill 200. Specifically, the grill 200 provided in the vehicle is provided with the optical module 100 for emitting light, and the light emitted from the optical module 100 is irradiated to the outside through the grill 200, so that the grill 200 emits the light. That is, when the optical module 100 does not emit light, the grill 200 functions as an exterior design according to a pattern shape, and when the optical module 100 emits light, the grill 200 functions as illumination of a vehicle that emits light.

Specifically, in the present invention, the pattern shape of the louver 200 and the shape of the light emitting region 110 emitting light from the optical module 100 are formed to be the same. As shown in fig. 1, the pattern shape of the louver 200 and the shape of the light emitting region 110 that emits light from the optical module 100 are formed to be the same, thereby maintaining the pattern design of the louver 200 and reducing the feeling of difference due to the light emission of the optical module 100.

That is, when preparing a pattern of a specific shape for the grating 200, the design of the grating 200 may be determined accordingly. Such a pattern of the grating 200 is an important factor representing the overall design of the grating 200, and in the case where the shape of the light emitting region 110 does not match the pattern shape of the grating 200, a sense of difference is caused when light is emitted through the optical module 100, and the design of the grating 200 is deteriorated.

Accordingly, the pattern shape of the louver 200 and the shape of the light emitting region 110 of the optical module 100 are formed to be the same, so that even when light is emitted through the optical module 100, the light is emitted in the same shape as the pattern shape of the louver 200, thereby maintaining the design of the louver 200 and accordingly improving the aesthetic property.

The grating 200 is provided with a plurality of mesh plates 210 having the same pattern shape, and the respective optical modules 100 may be respectively provided for some or all of the plurality of mesh plates 210. As shown in fig. 1, the grating 200 is provided with a plurality of mesh plates 210, and the mesh plates 210 may be made to have all the same shape. The shape of the mesh plate 210 may be applied in various forms such as a polygon, a circle, and the like.

The mesh plate 210 of the grating 200 is provided with the optical module 100 to be able to emit light from the mesh plate 210 when the light is emitted from the optical module 100. That is, in the case where the mesh plate 210 is provided with the optical module 100, the plurality of mesh plates 210 forming the grating 200 are configured such that the optical module 100 can emit light, and in the case where the mesh plate 210 is not provided with the optical module 100, the mesh plate 210 maintains its own design. Therefore, in the grating 200, various designs of the grating 200 depending on light emission from the optical module 100 may be changed according to the number and positions of the mesh plates 210 in which the optical module 100 is disposed among the plurality of mesh plates 210.

That is, when the optical modules 100 are disposed on all the mesh plates 210 of the grating 200, since light is emitted from the entire area of the grating 200, the amount of light emission can be secured and the function of illumination can be intuitively realized. On the other hand, when the optical module 100 is disposed on some of the mesh plates 210 of the grating 200, since light is emitted in some regions of the grating 200, the aesthetic impression of the design can be improved. As an exemplary embodiment, as shown in fig. 1, for the mesh plate, a bent shape such as a "<" shape may be implemented, for which various designs may be implemented according to the emission of light of the optical module 100 by selectively disposing the optical module 100 in the plurality of mesh plates 210.

In the present invention, the pattern shape of the louver 200 and the shape of the light emitting region 110 of the optical module 100 may be formed in a diamond shape. Preferably, the pattern shape of the grill 200 and the shape of the light emitting area 110 are matched to the diamond shape in order to implement a linear design so that the pattern of the grill 200 can be visually recognized when the grill 200 is viewed from the outside. In addition, the pattern image of the grating 200 is linearly implemented so that the light of the optical module 100 is emitted through the grating 200, so that when a message is delivered, the corresponding message can be intuitively recognized.

On the other hand, as shown in fig. 1 and 3, the optical module 100 for realizing vehicle lighting is provided on the louver 200, the mesh plate 210 is provided with a plurality of light-emitting regions 110 forming a mesh shape, light of the optical module 100 is emitted to the outside through the perforation holes 111 formed in the light-emitting regions 110, and the entire area of the perforation holes 111 may be configured to be at least more than half of the entire area of the light-emitting regions 110. That is, the grill 200 provided in the vehicle is provided with the optical module 100 for emitting light, and the light emitted from the optical module 100 is emitted to the outside through the grill 200, so that the grill 200 is configured to emit the light.

Here, the light of the optical module 100 is emitted to the outside through the perforated hole 111 formed in the light emitting region 110. The perforated holes 111 are portions opened such that light is emitted from the inside to the outside of the grating 200, and the light emitted from the optical module 100 is emitted to the outside through the perforated holes 111, so that light emission from the grating 200 can be achieved.

That is, the light emitting region 110 of the optical module 100 is a region that emits light of the optical module 100, and when the area of the perforated hole 111 is increased in the entire area of the emitting region 110, the amount of transmitted light increases, and when the area of the perforated hole 111 is decreased, the amount of transmitted light decreases. However, as the area of the perforation holes 111 is increased in the entire area of the light emitting area 110, the inside of the grill 200 can be seen more specifically from the outside, and in the case of making the perforation holes 111 too large, the design of the grill 200 becomes poor.

Accordingly, the entire area of the perforation holes 111 is configured to exceed at least more than half of the entire area of the light emitting region 110, so as to ensure the transmittance of light emitted from the optical module 100 and prevent the inside of the louver 200 from being seen from the outside, thereby preventing the design of the louver 200 from being deteriorated.

Here, the perforation 111 is preferably provided to 60% or more of the entire area of the light emitting region 110. Even in the case where the perforation holes 111 are 50% or more of the entire area of the light emitting region 110, the light transmittance through the optical module 100 may be secured to some extent, but since the light transmittance may be reduced by other processes including coating, the area of the perforation holes 111 should be set to 60% or more.

The above-mentioned are results obtained by the light distribution efficiency experiment according to each coordinate, and the light distribution efficiency experiment is intended to determine the light emission intensity measurement value (light distribution degree, [ cd ]) according to each angle (H: horizontal axis, V: vertical axis) on the screen. For example, the index of the light distribution efficiency experiment may be intended to determine that the emission intensity measurement value satisfies the DRL vehicular lamp regulation, and it can be determined whether the emission intensity measurement value according to each coordinate satisfies the DRL vehicular lamp regulation on a screen at a distance of 25 meters. In the results of the light distribution efficiency experiments of fig. 7 to 9, the HV point is the optical center point, and the light distribution degree is satisfied only when the light distribution degree satisfies the values of 400cd to 1200 cd. In addition, U is upper, D is lower, L is left, R is right, and the degree of satisfaction of the photometric degree can be checked for each coordinate. For example, "10U-5L" is a position coordinate that is 10 degrees upward and 5 degrees leftward from the reference point. Whether or not the light distribution efficiency is satisfied can be determined by checking whether or not the emission intensity measurement values of the respective positions satisfy the minimum target value 80cd and the maximum target value 1200 cd.

As a result of such a light distribution efficiency experiment, when the area of the perforation 111 is less than 50% of the entire area of the light emitting region 110, as shown in fig. 7, it can be seen that some of the plurality of points for the light emitting region are not satisfied. In addition, it can be seen that the emission intensity measurement value can be ensured only at a barely satisfactory level even at the remaining points.

However, as shown in fig. 8, when the area of the perforation 111 is 60% or more of the entire area of the light emitting region 110, it can be seen that the light emission intensity measurement values at all points are satisfied.

In addition, in a state where the perforation 111 is positioned on the upper side of the light emitting region 110, when the perforation 111 is 60% or more, as shown in fig. 9, it can be seen that the emission intensity measurement values of all the points are satisfied and a high emission intensity is secured.

As described above, the area of the perforation holes 111 is preferentially set to 60% or more of the entire area of the light-emitting region 110, and when located on the upper side of the light-emitting region, sufficient light emission intensity can be ensured.

Here, the pattern shape of the grill 200 and the shape of the light emitting area 110 are formed in the same diamond shape in order to realize a linear design of the grill 200, thereby intuitively recognizing the pattern of the grill 200 when the grill 200 is viewed from the outside. In addition, since the pattern image of the grating 200 is linearly implemented, when the message is transmitted by emitting the light of the optical module 100 through the grating 200, the corresponding message can be visually recognized from the outside.

On the other hand, as shown in fig. 4, the optical module 100 implementing the vehicle lighting is disposed on the grill 200, the light of the optical module 100 is emitted to the outside through the perforated hole 111 provided in the light emitting region 110, the perforated hole 111 is located at the upper side of the light emitting region 110, and the non-perforated portion 112 that does not transmit the light may be disposed. That is, the grill 200 provided in the vehicle is provided with the optical module 100 for emitting light, and the light emitted from the optical module 100 is emitted to the outside through the grill 200, thereby causing the grill 200 to emit light.

That is, since the light emitting region 110 is divided into the perforated hole 111 and the non-perforated portion 112, light emitted from the optical module 100 is emitted to the outside through the perforated hole 111, while in the non-perforated portion 112, the light is not projected to the outside.

Specifically, since the perforated holes 111 are located at the upper side of the light emitting region 110 and the non-perforated portions 112 are located at the lower side of the perforated holes 111, a pentagonal gem-like shape can be achieved when the grill 200 is viewed from the outside. Specifically, the perforated hole 111 is a portion that transmits light of the optical module 100. When the grille 200 is viewed from the outside, the interior is partially visible through the perforated apertures 111. Generally, since the grille 200 of the vehicle is disposed at the lower side of the vehicle, when the grille 200 is viewed from the outside, the grille 200 is viewed downward from the upper side to the lower side. In the light emitting region 110, since the perforated holes 111 are disposed at the upper side and the non-perforated portion 112 is disposed at the lower side, the non-perforated portion 112 is visible through the perforated holes 111 when the grill is viewed from the outside. When the grill 200 is viewed from the outside, the non-perforated portion 112 is viewed, and the gem-like shape is realized by the visibility of the remaining coating layer of the non-perforated portion 112, so that the design of the grill 200 can be further improved. In addition, since the perforation holes 111 are disposed at the upper side of the light emitting region 110, when the light of the optical module 100 passes through the perforation holes 111 and is emitted upward, the visibility of the light can be improved.

Also, the area of the perforation holes 111 occupies 60% of the entire area of the light emitting region 110, and the non-perforated portion 112 may be disposed in the remaining area except for the area of the perforation holes 111. Since the area of the perforation 111 is set to 60% or more of the entire area of the light emitting region 110, the light transmittance can be secured even when the light transmittance is reduced due to other processes including coating. In addition, since the non-perforated portion 112 is disposed in the remaining area except the area of the perforated holes 111, a gem-like shape can be easily realized by the non-perforated portion 112 when the grill 200 is viewed from the outside.

On the other hand, since the pattern shape of the louver 200 and the shape of the light emitting area 110 of the optical module 100 are formed in the same diamond shape and the perforation holes 111 are configured to exceed at least more than half of the entire area of the light emitting area 110, the perforation holes 111 are formed in a pentagonal shape, and accordingly, the non-perforated portion 112 may be formed in a triangular shape in the remaining area of the light emitting area 110.

As described above, the pattern shape of the louver 200 and the shape of the light emitting area 110 of the optical module 100 are made the same diamond shape in order to realize the linear design of the louver 200, thereby intuitively recognizing the pattern of the louver 200 when the louver 200 is viewed from the outside. In addition, since the pattern image of the grating 200 is linearly implemented, when the message is transmitted by emitting the light of the optical module 100 through the grating 200, the corresponding message can be visually recognized from the outside.

In addition, the perforation holes 111 are configured to exceed at least more than half of the entire area of the light emitting area 110, and thus the perforation holes 111 are formed in a pentagonal shape, and accordingly, the non-perforated portions 112 may be formed in a triangular shape in the remaining area of the light emitting area 110. That is, the light emitting region 110 of the optical module 100 is formed in a diamond shape, and since the perforated holes 111 of the light emitting region 110 have an area at least over half of the entire area, the perforated holes 111 are formed in a pentagonal shape. Since the shape of the perforation hole 111 is formed in a pentagonal shape, light transmittance may be sufficiently ensured in the diamond-shaped light emitting region 110 in a state where light is not emitted through the triangular-shaped non-perforated portion 112 disposed at the lower side of the perforation hole 111, and a gem-like shape that minimizes a sense of difference and enhances a design feeling may be easily realized.

On the other hand, the optical module 100 for implementing vehicle lighting is disposed on the grill 200, and the optical module 100 may be configured to include: a light source 120, a reflector 130, and a lens 140, the light source 120 for emitting light; the reflector 130 is used for reflecting light from the light source; the lens 140 provides a light emitting region 110 in which light reflected by the reflector 130 is emitted to the outside, and the lens 140 is formed in the same shape as the pattern shape of the grating 200.

The light source 120 may include a Light Emitting Diode (LED), and the reflector 130 preferably includes a mirror and is bent to change a direction of light emitted from the light source to be emitted to the outside. The lens 140 is disposed in front of the reflector 130 so that light is emitted to the outside, and is provided in the same shape as the pattern shape of the grating 200, thereby maintaining the pattern design of the grating 200 and reducing the sense of difference due to light emission of the optical module 100.

In the lens 140, a plurality of optical members 144 are configured to protrude outward, and each optical member 144 may be configured to have a respective light emitting region. For example, since the optical member 144 protrudes from the lens 140, an enhanced image may be realized by reflected light when the grating 200 is viewed from the outside. Specifically, it is preferable that each optical member 144 is arranged to correspond to each light emitting region 110, respectively.

Specifically, as shown in fig. 5 and 6, the optical member 144 includes upper and lower side surfaces 144a and 144b, which extend at an angle from positions spaced apart from each other to protrude and converge at a tip end, and the light emitting region 110 may include perforated holes 111 through which light is transmitted to the upper side and a non-perforated portion 112 through which light is not transmitted to the lower side, and the perforated holes 111 and the non-perforated portion 112.

The optical member 144 is provided with an upper side surface 144a and a lower side surface 144b connected with an inclined portion such that sunlight is reflected at the upper side surface 144a and sunlight is not reflected to the lower side surface 144b when the grill 200 is viewed from the outside, thereby generating an image difference between the upper side surface 144a and the lower side surface 144b of the optical member 144. In addition, the light emitting region 110 is provided with the perforated holes 111 transmitting light at an upper side, and the light emitting region 110 is provided with the non-perforated portion 112 not transmitting light at a lower side, so that when the grill 200 is viewed from the outside, a gem-like shape can be realized due to the non-perforated portion 112.

The optical member 144 is disposed such that the upper side surface 144a and the lower side surface 144b extend at the same angle to converge at the tip, and the light emitting region 110 may be disposed such that the branch point a of the perforated hole 111 and the non-perforated portion 112 is disposed at a position below the point b where the upper side surface 144a and the lower side surface 144b are connected to each other. Accordingly, the perforation holes 111 may be configured to at least exceed more than half of the total area of the light emitting region 110.

That is, since the upper side surface 144a and the lower side surface 144b extend at the same angle, the optical member 144 forms an isosceles triangle shape, and the light emitting region 111 is disposed such that the branch point a of the perforated hole 111 and the non-perforated portion 112 is disposed at a point below the point b where the upper side surface 144a and the lower side surface 144b are connected to each other, thereby ensuring the visibility of the non-perforated portion 112 through the perforated hole 111 when the grill 200 is viewed from the outside.

Specifically, since the grille 200 of the vehicle is generally disposed on the lower side of the vehicle, the grille 200 is viewed downward from the top to the bottom when viewed from the outside. When the grille 200 of the vehicle is viewed from the outside, sunlight is reflected at the upper side surface 144a of the optical member 144 provided on the lens 140 and sunlight is not reflected at the lower side surface 144 b. Accordingly, the design is implemented according to the difference of the reflection image between the upper side surface 144a and the lower side surface 144b, and when the inside of the grating 200 is viewed through the upper side surface 144a of the optical member 144, the non-perforated portion 112 is viewed through the perforated holes 111, thereby implementing a gem-like shape due to the visibility of the remaining coating of the non-perforated portion 112. Due to this arrangement, the exterior design of the grille 200 is improved. In addition, since the light emitting region 110 is disposed such that the branch points a of the perforated holes 111 and the non-perforated portions 112 are disposed at positions below the point b where the upper side surface 144a and the lower side surface 144b are connected to each other, the area of the perforated holes 111 is increased, thereby ensuring the light transmittance of the optical module 100 during the lighting function.

On the other hand, the shape of the optical member 144 may have the same shape as the pattern shape of the grating. The shape of the optical member 144 is formed to be the same as the pattern shape of the grating 200, thereby maintaining the pattern design of the grating 200 and reducing the sense of difference due to the light emission of the optical module 100. Since the pattern shape of the grating 200 and the shape of the optical member 144 are formed to be the same, it is possible to maintain the design according to the layout such that light is emitted in the same shape as the pattern shape of the grating 200 even when light is emitted through the optical module 100, thereby maintaining the design of the grating 200 and improving the aesthetic property.

Specifically, the pattern shape of the grating 200, the shape of the lens 140, the shape of the light emitting region 110, and the shape of the optical member 140 may be formed in the same shape as a diamond shape. The shape of the optical member 140, the pattern shape of the grating 200, the shape of the light emitting region 110, and the shape of the lens 140 are matched to the diamond shape so as to implement a linear design, so that the pattern of the grating 200 can be visually recognized when the grating 200 is viewed from the outside. In addition, since the shape of the optical member 140 matches the shape of the diamond, when the grating 200 is viewed, the design according to the shape of the diamond can be clearly expressed. The pattern image of the grating 200 is linearly implemented so that when the light of the optical module 100 is emitted through the grating 200 to transmit a message, the corresponding message can be intuitively recognized.

The lens 140 preferably includes: a transparent layer 141, a reflective layer 142, and a coating layer 143, the transparent layer 141 being disposed outside and configured to transmit light; the reflective layer 142 is bonded to the inner side of the transparent layer 141 and configured to reflect light; the overcoat layer 143 is bonded to the inner side of the reflective layer 142 and has a lower light transmittance than that of the transparent layer 141, wherein a plurality of perforated holes 111 opened to the transparent layer 141 may be spaced apart at the same position in the reflective layer 142 and the overcoat layer 143, thereby providing a plurality of light emitting regions 110.

The lens 140 includes a transparent layer 141, a reflective layer 142, and a coating layer 143. Specifically, the transparent layer 141 is made of a transparent plastic material, the reflective layer 142 is made of a material capable of reflecting light and coated on the transparent layer 141, and on the reflective layer 142, the coating layer 143 is coated with a material having a low light transmittance. In addition, the reflective layer 142 and the coating layer 143 are made of the same material as the grating 200, and may form the aesthetic property of the grating 200. That is, when the grating 200 is viewed from the outside, since the reflective layer 142 is viewed through the transparent layer 141 and the inside of the grating is not visible through the reflective layer 142 and the coating layer 143, a gem-like shape is realized.

Specifically, in the reflective layer 142 and the overcoat layer 143, a plurality of perforation holes 111 opened to the transparent layer 141 are spaced apart at the same position, so that a plurality of light emitting regions 110 may be provided. That is, light emitted from the optical module 100 may pass through the transparent layer 141 through the plurality of perforated holes 111 formed in the reflective layer 142 and the coating layer 143 to be emitted to the outside. The perforated hole 111 is a portion that is open so that light emitted from the optical module 100 is emitted to the outside. Since the perforated holes are disposed at the same positions of the reflective layer 142 and the coating layer 143 and are opened to the transparent layer 141, light may be emitted to the outside through the reflective layer 142 and the coating layer 143.

The lens 140 of the present invention provides the aesthetic appearance of the grating 200 through the transparent layer 141, the reflective layer 142, and the coating layer 143, but the perforated holes 111 are provided in the reflective layer 142 and the coating layer 143, so that light emitted from the optical module 100 is emitted to the outside through the perforated holes 111, thereby implementing an illumination function.

In addition, the lens 140 may include: an outer lens 140-1 and an inner lens 140-2, the outer lens 140-1 including a transparent layer 141, a reflective layer 142, and a coating layer 143; the inner lens 140-2 is disposed inside the outer lens 140-1 and has a plurality of protrusions or grooves to scatter light emitted from the optical module 100.

The lens 140 includes an outer lens 140-1 and an inner lens 140-2, the outer lens 140-1 providing the aesthetic appearance of the grid 200, and the inner lens 140-2 configured to scatter light emitted from the optical module 100. Here, the inner lens 140-2 is disposed inside the outer lens 140-1 and provided with a plurality of protrusions or grooves, so that light emitted from the optical module 100 is scattered by the plurality of protrusions or grooves, thereby removing hot spots and improving visibility of the light.

Fig. 10 and 11 are schematic views illustrating transmission messages through the hidden vehicle lamp device shown in fig. 1. The optical module 100 for implementing the lighting of the vehicle is disposed on the grill 200 such that the light of the optical module 100 is emitted through the grill 200. A plurality of optical modules 100 are disposed in the grid 200 and may be configured to be individually turned on and off. By the individual light on-off control of the optical module 100, various lighting functions can be realized by diversifying the positions of light emitted from the grating 200 and by diversifying the intensities of light.

A controller 300 for individually controlling on and off of the optical modules 100 may be further included, and the controller 300 is configured to control sequential lighting of sequentially turning on and off the plurality of optical modules 100, and can be implemented by controlling images for communication by turning on and off only some of the optical modules. Here, the controller 300 is configured to control on and off of the optical modules 100 by receiving manipulation of a user or various sensor signals, and sequentially control the plurality of optical modules 100 on the grill 200 for on and off from side to side or from side to side, so that a lighting design may be improved and directivity may be transmitted to other vehicles or pedestrians according to circumstances. In addition, the controller 300 implements messages such as text or graphics by turning on and off only some of the optical modules 100, so that communication can be made through transmission of various messages.

The recessed vehicle lamp device having the above-described structure is arranged such that light is emitted from the grille 200 of the vehicle, and when light is not emitted, the light emitting area 110 realizes the beauty of the grille 200, thereby maintaining the design of the grille 200.

As described above, the present invention has been described with reference to specific exemplary embodiments. Those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.