JP4793347B2 - VEHICLE LIGHT, METHOD FOR IDENTIFICATION OF ITS COVER, AND OUTER LENS COMPONENT FOR THE SAME - Google Patents

Description

  The present invention relates to a vehicular lamp mounted on a vehicle.

  2. Description of the Related Art Conventionally, a vehicular lamp mounted on a vehicle has a light source provided in a housing space formed by a housing that is open at one end, and an outer lens member that allows light to pass through the open end of the housing. There is.

Since this outer lens member is exposed to the outside so as to form a part of the exterior of the vehicle, for example, a coating material for preventing scratches is applied (hereinafter also referred to as hard coat processing). It is known that a coating material for preventing fogging is applied (hereinafter also referred to as anti-fogging processing) to form a coating layer on the front surface or the back surface (see, for example, Patent Document 1).
JP 05-159607 A

  However, in the hard coat processing and anti-fogging processing described above, the coating layer formed is extremely thin and is colorless and transparent like the outer lens member. Therefore, the outer lens member is subjected to hard coating processing or anti-fogging processing. It was difficult to identify whether or not a coating layer was formed.

  The present invention has been made in view of the above problems, and can easily and reliably identify whether or not a coating layer is formed on the outer lens member, a method for identifying the presence or absence of the coating, It is another object of the present invention to provide an outer lens component therefor.

  In order to solve the above-described problems, a vehicle lamp according to the present invention is a vehicle lamp in which an outer lens member is provided at an open end of a housing that forms a housing space in which a light source is disposed, and the outer lens member is And a confirmation region in which at least one of the back surface or the front surface on the accommodation space side is a fine wavy uneven surface, and the confirmation region has one surface on which the uneven surface of the outer lens member is provided. The uneven surface is filled with the coating layer formed to form a uniform coating surface continuous with the coating layer, and the coating surface and the other surface are parallel to each other.

  The vehicular lamp according to claim 2 is the vehicular lamp according to claim 1, wherein the uneven surface is a thickness dimension of the coating layer formed on the back surface or the surface of the outer lens member. It is characterized by being formed by unevenness having a smaller height dimension.

  The vehicular lamp according to claim 3 is the vehicular lamp according to claim 1 or claim 2, wherein the unevenness is formed on both the back surface side and the front surface side of the outer lens member in the confirmation region. A surface is provided.

  The vehicle lamp according to claim 4 is the vehicle lamp according to claim 3, wherein the uneven surface on the back surface side and the uneven surface on the front surface side have different light scattering rates. It is characterized by being.

  The vehicular lamp according to claim 5 is the coating presence / absence discrimination method for the vehicular lamp according to any one of claims 1 to 4, wherein the outer lens is based on the transmittance of the confirmation region. It is characterized by identifying whether the film layer was formed in the member.

  The film presence / absence identification method according to claim 6 is the film presence / absence identification method according to claim 5, wherein the transmittance of the confirmation region is orthogonal to the back surface of the outer lens member or one side of the surface. It is obtained by irradiating inspection light toward the confirmation region along the direction, and receiving the inspection light at a position facing the emission direction and on the other side of the back surface or the front surface. To do.

Outer lens member according to claim 7 is the outer lens member provided on the open end of the housing forming an accommodation space in which the light source so as to constitute a vehicle lamp to be mounted on the vehicle are arranged, according to the light source A lens portion for irradiating the front of the vehicle, and a flange portion that is provided so as to surround the lens portion and is shielded by a vehicle body panel of the vehicle when attached to the vehicle, the flange portion, and wherein the Rukoto confirmation area in which at least one surface is a fine wavy uneven surface of the backside or surface of the said housing space side are provided.

  In the vehicular lamp of the present invention, since the outer lens member is provided with a confirmation region having a wavy uneven surface, the confirmation region of the outer lens member is not formed when the coating layer is formed. Since the light transmittance is different, the presence or absence of the coating layer of the outer lens member can be surely identified only by acquiring the transmittance.

  Also, irradiate the inspection light from the direction orthogonal to the coating surface toward the confirmation region, and receive the inspection light transmitted through the confirmation region so as to face the emission direction of the inspection light on the side opposite to the irradiation side. When the transmittance of the confirmation region is acquired, when the coating layer is formed, the transmittance is close to the transmittance of the smooth outer lens member, that is, the transmittance is high, whereas the coating layer is not formed. Since the inspection light is diffused when entering the concavo-convex surface (the coating film surface does not exist), the inspection light can hardly be received and the transmittance is low. For this reason, the presence or absence of the coating layer of the outer lens member can be easily and reliably identified.

  In addition to the configuration described above, the uneven surface is formed by unevenness having a height dimension smaller than the thickness dimension of the coating layer formed on the back surface or the front surface of the outer lens member. The uneven surface can be filled with the coating layer to be formed, and a flat coating surface can be formed on the uneven surface.

  In addition to the above-described configuration, in the confirmation region, if the uneven surface is provided on both the back side and the front side of the outer lens member, for example, the surface of the outer lens member is prevented from being scratched. Even if the hard coat processing is applied to the back surface and the anti-fogging processing is applied to the back surface to prevent fogging, both the front surface and the back surface can be obtained simply by obtaining and judging the transmittance of a single confirmation region. Whether or not a coating layer is formed can be reliably identified.

  In addition to the above-described configuration, if the uneven surface on the back surface side and the uneven surface on the front surface side are set to have different light scattering rates, the transmittance of a single confirmation region is acquired. Judging from the above, whether the coating layer is formed on both the front surface and the back surface, whether the coating layer is formed only on the front surface, or the coating layer is formed only on the back surface It can be discriminated whether it is a product or a coating layer is not formed on either the front surface or the back surface.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  FIG. 1 is a perspective view schematically showing a vehicle C in which a headlamp 10 which is an example of a vehicular lamp according to the present invention is employed, and FIG. 2 is obtained along the line I-I shown in FIG. 2 is a schematic cross-sectional view of the obtained headlamp 10. FIG. 3 is a schematic front view showing the outer lens member 11 of the headlamp 10, and FIG. 4 is a schematic partial cross-sectional view obtained along the line II-II shown in FIG. In the following description, in the outer lens member 11, the front surface 24 refers to the surface exposed to the outside when the headlamp 10 is mounted on the vehicle C, and the rear surface 25 refers to the accommodation of the headlamp 10. This refers to the surface on the space 13 side (see FIG. 2).

  As shown in FIG. 1, the headlamp 10 is mounted on the vehicle C to irradiate the front. As shown in FIG. 2, the headlamp 10 includes an outer lens member 11 provided on the front surface side and a housing 12 provided on the rear portion of the outer lens member 11. A lamp unit 14 is provided in a housing space 13 formed by the housing 12 and the outer lens member 11 attached to the open end 12a. The lamp unit 14 includes a frame 15, an inner lens 16 that covers the front opening, and a reflector 17 that covers the rear opening of the frame 15.

  The reflector 17 has a bowl shape (a shape in which the diameter dimension is gradually increased from the right side to the left side in FIG. 2) configured by a curved surface having a substantially quadratic curve when viewed in a cross section including the center line, and the rear end portion 17a. An insertion hole 17b is provided at the bottom of the bowl shape (the right end in FIG. 2), and the inner side is a reflecting surface. The reflector 17 cooperates with the frame 15 and the inner lens 16 to form a lamp chamber 18, and a discharge lamp 19 as a light source is provided in the lamp chamber 18. In the present embodiment, the discharge lamp 19 is a high-pressure metal vapor discharge lamp such as a metal halide lamp or a high-intensity discharge lamp (HID). The discharge lamp 19 can be attached to the lamp chamber 18 through the insertion hole 17b of the reflector 17, and an igniter 20 is connected thereto.

  The igniter 20 can be mounted on the lamp unit 14 so as to be electrically connected to the discharge lamp 19 mounted in the lamp chamber 18 through the insertion hole 17b of the reflector 17. The igniter 20 is connected to the control unit 21 and lights the discharge lamp 19 under this control. For this reason, the lamp unit 14 can be irradiated under the control of the control unit 21.

  In the headlamp 10 as the vehicular lamp according to the present invention, as shown in FIGS. 2 and 3, a confirmation region 30 is provided in the outer lens member 11. In this embodiment, the outer lens member 11 has a lens portion 22 for irradiating the front of the vehicle C by the lamp unit 14 and a flange portion 23 provided so as to surround the periphery thereof. The flange portion 23 is provided to fix the outer lens member 11 and the housing 12, and is configured to be shielded by the vehicle body panel when the outer lens member 11 is mounted on the vehicle C ( (See FIG. 1). In this embodiment, a confirmation region 30 is provided in the flange portion 23.

  The confirmation region 30 is a position where a coating material for the outer lens member 11 (mainly the lens portion 22) is coated in the same manner as the lens portion 22 when a hard coat process or an anti-fogging process is performed. Is set to In the confirmation region 30, the front surface 24 and the back surface 25 are generally parallel to each other, that is, have a uniform thickness dimension, and at least one of the front surface 24 side and the back surface 25 side is the uneven surface 31. In this confirmation region 30, when only one surface is the uneven surface 31, the other surface that is not the uneven surface 31 is a flat surface 32 parallel to the front surface 24 and the back surface 25. In the present embodiment, as shown in FIG. 4, the confirmation region 30 has an uneven surface 31 on the surface 24 side of the outer lens member 11 and a flat surface 32 on the back surface 25 side. This is because in the headlamp 10 of the present embodiment, only the surface 24 of the outer lens member 11 is set to be subjected to hard coat processing for preventing scratches.

  This uneven surface 31 is formed by wavy unevenness. In other words, the unevenness of the uneven surface 31 is raised or depressed to form a surface extending in an oblique direction with respect to the extending direction of the front surface 24 or the back surface 25 of the flange portion of the outer lens member 11 ( (See FIG. 5). Further, the unevenness of the uneven surface 31 is set to a height dimension smaller than the thickness dimension of the coating layer 33 (see FIG. 5) formed on the lens portion 22 of the outer lens member 11. The reason for this will be described later. The concave / convex surface 31 may be formed by forming the outer lens member 11 with a front surface and a back surface corresponding to the confirmation region 30 as a flat surface, and blasting the flat surface. The mold for forming the outer lens member 11 may be formed by performing uneven processing.

  When hard coating is applied to the surface 24 of the outer lens member 11 and the coating layer 33 is formed on the surface 24, the coating layer 33 is also formed on the uneven surface 31 of the confirmation region 30 as shown in FIG. Is done. FIG. 5 is an explanatory diagram for explaining the appearance of the coating layer 33 and the uneven surface 31, and schematically shows the vicinity of the confirmation region 30.

  The coating layer 33 formed on the uneven surface 31 of the confirmation region 30 forms a uniform coating surface 33 a continuous with the coating layer 33 around the confirmation region 30 while filling the unevenness of the uneven surface 31 with a coating material. . As described above, this is because the height dimension of the unevenness of the uneven surface 31 is set smaller than the thickness dimension of the coating layer 33 formed on the surface 24 of the outer lens member 11. Since the surface 24a of the outer lens member 11 is parallel to the surface 24 and the back surface 25 of the portion corresponding to the confirmation region 30 where the uneven surface 31 is provided on the surface 24 of the outer lens member 11, the outer lens The back surface 25 of the member 11, that is, the flat surface 32 on the back surface 25 side of the confirmation region 30 is parallel. Therefore, in the confirmation region 30, the coating layer 33 and the outer lens member 11 are in close contact with each other with the uneven surface 31 as a boundary, and the coating surface 33 a formed by one coating layer 33 and the other outer lens member 11. Are parallel to each other.

  In the headlamp 10 of the vehicle lamp according to the present invention, it is possible to easily and reliably identify whether or not the outer lens member 11 has the coating layer (33). This coating presence / absence identification method will be described below with reference to FIGS. This FIG. 6 is explanatory drawing shown with a typical perspective view, in order to demonstrate the mode of the coating-film presence / absence identification method. FIG. 7 is an explanatory diagram for explaining a state in which the transmittance of the inspection light L is different in the confirmation region 30, and FIG. 8 is a state in which the inspection light L is refracted on the uneven surface 31 of the confirmation region 30. It is explanatory drawing for demonstrating.

  In the coating presence / absence identification method according to the present invention, as shown in FIG. 6, an emitting device 34 and a light receiving device 35 are used. The emission device 34 is capable of emitting a light beam as the inspection light L, and in this embodiment, an emission device that emits red laser light is used. The light receiving device 35 can receive the inspection light L emitted from the emission device 34, and can detect the amount of the received inspection light L. The emission device 34 and the light receiving device 35 are opposed to each other, and the confirmation region 30 of the outer lens member 11 is arranged so as to be orthogonal to the inspection light L emitted from the emission device 34, that is, the inspection light from the emission device 34. The outer lens member 11 is arranged so that the front surface and the back surface 25 of the flange portion 23 defined as the confirmation region 30 are orthogonal to the emission direction O of L.

  Then, in the light receiving device 35, when the coating layer 33 is formed on the outer lens member 11, that is, when the confirmation region 30 is configured by laminating the coating layer 33 and the outer lens member 11, the outer lens When substantially the same amount of light is detected when the member 11 is transmitted, when the outer lens member 11 is not formed with the coating layer 33, that is, when the confirmation region 30 is composed only of the outer lens member 11. The extremely low amount of light will be detected. This is due to the following.

  In the confirmation region 30, when the coating layer 33 is formed, a flat coating surface 33a in which air and the coating layer 33 (indicated by a two-dot chain line) are orthogonal to the emission direction O is formed as shown in FIG. The coating layer 33 and the outer lens member 11 are in contact with each other as a boundary surface, and the uneven surface 31 formed by the unevenness inclined in the emission direction O is in contact with the boundary surface, and the outer lens member 11 and air are orthogonal to the emission direction O. Thus, the flat flat surface 32 is in contact with the boundary surface.

  On the other hand, when the coating layer 33 is not formed, the air and the outer lens member 11 are in contact with the uneven surface 31 as a boundary surface, and the outer lens member 11 and the air are in contact with the flat surface 32 as a boundary surface. Will be.

  Here, in general, the coating material (the coating layer 33) used for the hard coating process has a refractive index close to that of the outer lens member 11 (the difference between the refractive indexes is extremely small). 33) and the outer lens member 11 have a large refractive index with respect to air.

  When the coating layer 33 is formed in the confirmation region 30, the traveling direction of the inspection light L changes when passing through the coating surface 33a because the coating surface 33a is orthogonal to the emission direction O. Instead, it advances from the air to the coating layer 33 along the emission direction O. The inspection light L traveling in the coating layer 33 along the emission direction O reaches the uneven surface 31. Since the uneven surface 31 is inclined with respect to the emission direction O and is a boundary surface between the coating layer 33 and the outer lens member 11, the inspection light L is refracted when passing through the uneven surface 31. It will be. Here, since the coating layer 33 and the outer lens member 11 have close refractive indexes as described above, the inspection light L enters the outer lens member 11 without changing the traveling direction so much. It advances in the member 11 (see inspection light L1 in FIG. 8).

  Thereafter, the inspection light L1 passes through the flat surface 32 orthogonal to the emission direction O and advances (emits) into the air, but the inspection light L1 is substantially parallel to the emission direction O. That is, since the flat surface 32 is reached at an angle close to approximately 90 degrees, the traveling direction is not changed so much when passing through the back surface 25 from the outer lens member 11 into the air (inspection light L1). reference).

  For this reason, when the coating layer 33 is formed in the confirmation region 30, the inspection light L passes through the confirmation region 30 so as to be substantially along the emission direction O and is substantially all when emitted from the emission device 34. Light beams reach the light receiving device 35, that is, almost all light beams are received by the light receiving device 35. Therefore, when the coating layer 33 is formed in the confirmation region 30, the light receiving device 35 receives the inspection light L emitted from the emitting device 34 as a substantially equal amount of light when transmitted through the outer lens member 11. As a result, the confirmation region 30 has a high transmittance. In other words, the confirmation region 30 on which the coating layer 33 is formed is substantially equal to the outer lens member 11 in an optically transparent lens state with respect to the inspection light L emitted from the emission device 34.

  On the other hand, when the coating layer 33 is not formed in the confirmation region 30, the inspection light L advances in the air along the emission direction O and reaches the uneven surface 31. Since the uneven surface 31 is inclined with respect to the emission direction O and is a boundary surface between the air and the outer lens member 11, when the inspection light L passes through the uneven surface 31, the air and the outer lens member 11. The light is refracted according to the difference in refractive index. As described above, since the refractive index of the outer lens member 11 with respect to the refractive index of air is large, the inspection light L enters the outer lens member 11 by changing the traveling direction and advances in the outer lens member 11. (See inspection light L2 in FIG. 8).

  Thereafter, the inspection light L2 passes through the flat surface 32 orthogonal to the emission direction O and travels (emits) into the air, but the inspection light L2 is inclined with respect to the emission direction O. Since it will reach the flat surface 32 along the direction to be made, when passing through the back surface 25 from the outer lens member 11 toward the air, the refractive index of the outer lens member 11 and the refractive index of the air The traveling direction is changed according to the difference (see inspection light L2 ′).

  For this reason, when the coating layer 33 is not formed in the confirmation region 30, the inspection light L passes through the confirmation region 30 while being scattered by the uneven surface 31, and only a part of the light beam when emitted from the emission device 34. Reaches the light receiving device 35, that is, only a part of the light beam is received by the light receiving device 35. Therefore, when the coating layer 33 is not formed in the confirmation region 30, the light receiving device 35 receives the inspection light L emitted from the emission device 34 as an extremely small amount of light compared to the inspection light L. Thus, the confirmation region 30 has a low transmittance.

  For this reason, if the coating presence / absence identification method according to the present invention is performed on the headlamp 10 which is a vehicle lamp according to the present invention, the coating layer is based on the amount of the inspection light L received by the light receiving device 35. The presence or absence of 33 can be easily and reliably identified.

  Moreover, in the headlamp 10, since the confirmation area | region 30 is provided in the outer lens member 11 and the flange part 23 shielded by the vehicle body panel when the headlamp 10 is mounted on the vehicle C, the confirmation area 30 is provided. Due to the provision, the outer lens member 11 and thus the head lamp 10 are prevented from having any influence on the appearance and light distribution.

  Further, in the coating presence / absence identification method according to the present invention, it is determined whether or not the coating layer 33 is formed on the outer lens member 11 based on the difference in the transmittance of the confirmation region 30. The presence / absence of the coating layer 33 can be reliably identified regardless of the thickness dimension of the coating layer 33 formed on the front surface 24 or the back surface 25.

  Therefore, if the coating presence / absence identification method according to the present invention is performed on the headlamp 10 which is a vehicle lamp according to the present invention, the presence / absence of the coating layer 33 that is difficult to identify with the naked eye can be easily and reliably detected. Can be identified.

  In the above-described embodiment, the confirmation region 30 is configured such that the concavo-convex surface 31 is formed on the front surface 24 side. However, for example, the coating layer 33 for the antifogging process is the back surface 25 of the outer lens member 11. In view of the fact that it is formed on the back surface 25, an uneven surface may be provided on the back surface 25 side, and is not limited to the above-described embodiment.

  In the above-described embodiment, the confirmation region 30 is configured by forming the uneven surface 31 on only one of the front surface 24 and the back surface 25. However, as shown in FIG. The uneven surface 31b can also be formed. With such a configuration, the outer lens member 11 is set so that, for example, a coating layer for hard coating is formed on the back surface 25 and a coating layer for anti-fogging processing is formed on the back surface 25. If it is, it is possible to easily and reliably identify whether or not both coating layers are formed on the front surface 24 and the back surface 25 by executing the above-described coating presence / absence identification method according to the present invention.

  Further, as shown in FIG. 9, when the confirmation region 30 ′ is formed by forming the uneven surface 31a and the uneven surface 31b on both surfaces, the difference between the uneven surface 31a and the uneven surface 31b is different. By providing or the like, there is a difference between the scattering rate between the outer lens member 11 and the air having the uneven surface 31a as a boundary surface, and the scattering rate between the outer lens member 11 and the air having the uneven surface 31b as a boundary surface. It can be set as the structure provided. In this case, by acquiring and determining the transmittance of the confirmation region 30 ′, that is, by determining the amount of light acquired by the light receiving device 35 by executing the coating presence / absence identification method according to the present invention on the confirmation region 30 ′, Whether the outer lens member 11 to be inspected has a coating layer formed on both the front surface 24 and the back surface 25, or a coating layer formed only on the front surface 24, or only on the back surface 25 It is possible to identify whether the coating layer is formed or whether the coating layer is not formed on either the front surface 24 or the back surface 25.

  In the above-described embodiment, the unevenness of the uneven surface 31 was set to a height dimension smaller than the thickness dimension of the coating layer 33, but this was actually tested by providing a confirmation region. This is because, when the uneven surface is constituted by unevenness with a large height, the transmittance of the confirmation region may be lowered even though the coating layer is formed in the confirmation region. As a cause of this, it is conceivable that the surface of the coating layer formed on the concavo-convex surface is not flat when the height of the concavo-convex surface is large and the thickness of the coating layer is large. Therefore, the height of the uneven surface of the uneven surface takes into account the characteristics of the coating material and the thickness dimension of the film layer so that the surface of the film layer formed on the uneven surface is a flat surface. You can set it.

  In the above-described embodiment, the confirmation region 30 is provided in the flange portion 23 of the outer lens member 11 at a position located below the lens portion 22, but in the outer lens member 11, the front of the vehicle C by the lamp unit 14 is provided. It is only necessary to be provided at a position where the film layer 33 is formed when the outer lens member 11 is subjected to film processing, and is not limited to the above-described embodiment. Absent.

  In the above-described embodiments, the coating material (the coating layer 33) and the outer lens member 11 have been described as having a similar refractive index. However, if the coating material (the coating layer 33) and the outer lens member 11 have the same refractive index. When the coating layer (33) is formed on the outer lens member 11, the confirmation region 30 has the same transmittance as that of the outer lens member 11 in a transparent state, and the presence or absence of the coating layer can be more reliably identified.

  In the above-described embodiment, the headlamp 10 has been described as the vehicular lamp according to the present invention. However, the vehicular lamp is provided with an outer lens member at an open end of a housing that forms a housing space in which a light source is disposed. As long as the coating layer is formed on the front surface or the back surface of the outer lens member, the outer lens member is not limited to the above-described embodiment.

1 is a perspective view schematically showing a vehicle that employs a headlamp that is an example of a vehicular lamp according to the present invention. It is typical sectional drawing of the headlamp obtained along the II line | wire shown in FIG. It is a typical front view which shows the outer lens member of a headlamp. It is the typical fragmentary sectional view obtained along the II-II line | wire shown in FIG. It is explanatory drawing for demonstrating the mode of a film layer and an uneven surface, and has shown typically the vicinity of the confirmation area | region. It is explanatory drawing shown with a typical perspective view in order to demonstrate the mode of the coating-film presence / absence identification method. It is explanatory drawing for demonstrating a mode that a difference arises in the transmittance | permeability of the inspection light L in a confirmation area | region. It is explanatory drawing for demonstrating a mode that the inspection light L is refracted | refracted in the uneven surface of a confirmation area | region. It is typical sectional drawing which shows the other example of a confirmation area | region.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Head lamp (as a vehicle lamp) 11 Outer lens member 12 Housing 12a Open end 13 Accommodating space 14 Lamp unit (as light source) 24 Surface 25 Back surface 30 Confirmation area 31 Concavity and convexity 33 Coating layer 33a Coating surface C Vehicle L Inspection light

Claims (7)

A vehicular lamp in which an outer lens member is provided at an open end of a housing forming an accommodation space in which a light source is disposed,
The outer lens member includes a confirmation region in which at least one of the back surface or the front surface on the accommodation space side is a fine wavy uneven surface,
In the confirmation region, the uneven surface is filled with a coating layer formed on one surface of the outer lens member provided with the uneven surface, and a uniform coating surface continuous with the coating layer is formed, A vehicular lamp characterized in that a coating surface and the other surface are parallel to each other.   2. The uneven surface according to claim 1, wherein the uneven surface is formed by unevenness having a height dimension smaller than a thickness dimension of the coating layer formed on the back surface or the front surface of the outer lens member. Vehicle lamp.   3. The vehicular lamp according to claim 1, wherein the uneven surface is provided on both the back side and the front side of the outer lens member in the confirmation region. 4.   The vehicular lamp according to claim 3, wherein the uneven surface on the back surface side and the uneven surface on the front surface side are set to have different light scattering rates. A method for identifying the presence or absence of a coating on a vehicular lamp according to any one of claims 1 to 4,
A method for identifying the presence or absence of a film, comprising identifying whether or not a film layer is formed on the outer lens member based on the transmittance of the confirmation region.   The transmittance of the confirmation region is such that the inspection light is irradiated from one side of the back surface or the front surface of the outer lens member toward the confirmation region along the orthogonal direction, and the inspection light is aligned with the emission direction. The film presence / absence identification method according to claim 5, wherein the film presence / absence is obtained by receiving light at a position corresponding to the back surface or the other side of the surface. An outer lens member provided at an open end of a housing forming a housing space in which a light source is arranged to constitute a vehicular lamp to be mounted on a vehicle,
A lens portion for irradiating the front of the vehicle by the light source, and a flange portion provided so as to surround the lens portion and shielded by a vehicle body panel of the vehicle when mounted on the vehicle. Prepared,
The said flange portion, the outer lens member, characterized in Rukoto confirmation area in which at least one surface is a fine wavy uneven surface of the back surface or surface serving as the accommodating space side is provided.

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