Two-color molding structure and vehicle lamp using the two-color molding structure

Abstract

To provide a two-color molded structure with an improved appearance in design and a vehicle light fixture using this structure.SOLUTION: A two-color molded structure consists of a transmissive lens 1 and a non-transmissive member 2. The transmissive lens 1 comprises a vertically extending transmissive body 11, a curved bend 12 that curves forward from a top of the transmissive body 11 and further curves toward the non-transmissive member 2 to join the non-transmissive member 2, and a transmissive extension 13 that extends horizontally from the curved bend 12 along the non-transmissive member 2 to join the non-transmissive member 2. The non-transmissive member 2 comprises a non-transmissive body 21 extending horizontally, and a non-transmissive extension 22 extending downward from the front of the non-transmissive body 21 and joining the upper portion of the transmissive body 11 of the transmissive lens 1 and the surface of the curved bend 12.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a two-color molding structure and a vehicle lamp using the two-color molding structure. [Background technology]

[0002] The outer lens of a rear combination lamp, which is installed at the rear of a vehicle as a vehicle lamp, is manufactured by injection molding, that is, a two-color molding structure in which a cavity formed by a fixed mold and a movable mold is filled with molten resin and cooled to be molded as a single unit.

[0003] The two-color molded structure described above is manufactured as follows. For example, a first cavity formed by a fixed mold and a first movable mold is filled with a first molten resin and cooled to form a first molded part. Next, after the first movable mold is opened, the second movable mold is clamped while the first molded part is set. Next, a second molten resin is filled into a second cavity formed by the fixed mold and the second movable mold and cooled to form a second molded part. This completes a two-color molded structure in which the first and second molded parts are integrally molded (see Patent Document 1). For example, in the outer lens of a rear combination lamp, the first molded part is a transmissive lens as described below, and the second molded part is a non-transmissive member as described below.

[0004] Fig. 11 is a cross-sectional view showing a conventional two-color molding structure (see Fig. 19 of Patent Document 1). Note that the up-down direction (vertical direction) and the front-rear direction (horizontal direction) in Fig. 11 are the vehicle directions of the rear combination provided with the two-color molding structure.

[0005] In the two-color molded structure of FIG. 11, a transparent lens 101 and a non-transparent member 102 acting as an outer lens are integrally molded by injection molding, with the transparent lens 101 being made of, for example, a red transparent resin and the non-transparent member 102 being made of a colored non-transparent resin.

[0006] 11, the transparent lens 101 has a front surface 1011 and a back surface 1012, while the non-transparent member 102 has a front surface 1021 and a back surface 1022. In this case, the back surface 1012 side of the transparent lens 101 is provided with a transparent extension portion 101a extending upward, while the back surface 1022 side of the non-transparent member 102 is provided with a non-transparent extension portion 102a extending downward, and these extension portions 101a, 102a are bonded in the vertical direction. This increases the bonding area between the transparent lens 101 and the non-transparent member 102, and improves the bonding between the transparent lens 101 and the non-transparent member 102, thereby ensuring high strength. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] JP 2017-100371 A Summary of the Invention [Problem to be solved by the invention]

[0008] However, when the above-mentioned two-color molding structure is used in a vehicle lamp, there is a problem as follows. 1 When the lens 101 is used as an external light incidence surface, external light from other vehicles, etc., enters the front surface 1011 of the transmission lens 101 at a viewing angle of 0°, and a light ray L3 in the line of sight is refracted by the front surface 1011 and the back surface 1012 of the transmission lens 101 and passes through the transmission lens 101. As a result, the light ray L3 is reflected by a reflector (not shown) located behind the back surface 1012 of the transmission lens 101 and returns to the transmission lens 101. As a result, the entire surface of the transmission lens 101 becomes the color of the transmission lens (red in this case), which is a problem in that the appearance in terms of design is not improved. In this case, depending on the angle of incidence, the light ray L3 may accidentally enter the transmission extension portion 101a of the transmission lens 101, causing the colored light of the non-transmitting member 102 to return to the transmission lens 101, and a part of the non-transmitting color (black) may be projected, but this accidental occurrence does not mean that the appearance in terms of design has changed.

[0009] Fig. 12 is a cross-sectional view showing a two-color molded structure as a comparative example. Note that the up-down direction (vertical direction) and the front-rear direction (horizontal direction) in Fig. 12 are the vehicle directions of the rear combination provided with the two-color molded structure.

[0010] In FIG. 12, the transmitting lens 201 is in contact with the non-transmitting member 202 in the horizontal direction. transparent The extension portion 201a is provided in the non-transparent member 202. This increases the bonding area between the transparent lens 201 and the transparent extension portion 201a and the non-transparent member 202, thereby improving the bonding between the transparent lens 201 and the non-transparent member 202, and thereby ensuring high strength by improving the bonding between the transparent lens 201 and the non-transparent member 202.

[0011] However, when the comparative example shown in FIG. 12 is applied to a vehicle lamp using a two-color molding structure, the transparent lens 201 table When the surface 2011 is made to function as an external light incidence surface, at a viewing angle of 0°, external light from other vehicles, etc., is refracted and incident on the surface 2011 of the transmitting lens 201, and light ray L2 in the line of sight is refracted at the surface 2011 of the transmitting lens 201 and enters the non-transmitting extension portion 201a, and the colored light of the non-transmitting member 202 returns to the transmitting lens 201. As a result, a non-transmitting color (black) is projected. On the other hand, light ray L3 in the line of sight is refracted and incident on the surface 2011 and rear surface 2012 of the transmitting lens 201 and passes through the transmitting lens 201. As a result, light ray L3 Transparent Lens The light is reflected by a reflector (not shown) located on the rear surface 2012 side of the transmission lens 201 and travels in the opposite direction through the transmission lens 201. Therefore, the front surface 2011 of the transmission lens 201 has the color of the transmission lens (red in this case). 201 Surface 2011 The black of the non-transparent member 202 and the black of the projection are connected, so external light, etc. 201 Entering into Ta When the black portion is changed, the black portion becomes thicker and the appearance changes. However, since the thickness of the black portion only increases, there is little change in the appearance of the transmission lens 101. Therefore, it cannot be said that the appearance in terms of design has been improved. [Means for solving the problem]

[0012] In order to solve the above-mentioned problems, the two-color molded structure according to the present invention is a two-color molded structure in which a transmissive lens and a non-transmissive member are integrally molded, the non-transmissive member having a non-transmissive body portion extending in a first direction, the transmissive lens having a transmissive body portion extending in a second direction, and a transmissive lens having a transmissive body portion extending in a first direction from an upper portion of the transmissive body portion to a rear surface side of the transmissive lens. The first one is inclined and bent Bend part, and the first bent part Towards non-transparent materials Further linearly in the second direction Bent and joined to non-transparent material Second A bending portion is provided. The transmissive body has a back surface adjacent to the first bent portion, the back surface being formed at an angle equal to or less than the critical angle so that a third external light beam that is refracted and incident on a third location on the front surface side of the transmissive body of the transmissive lens at a predetermined viewing angle is refracted and emitted from the back surface side of the transmissive lens. , The first bent portion has a linear back surface inclined at an angle equal to or greater than the critical angle so that a second external light refracted and incident at a second location above a third location on the front surface side of the transmissive body portion of the transmissive lens at a predetermined viewing angle is totally reflected by the first bent portion of the transmissive lens and absorbed by the non-transmissive body portion, and the second bent portion has a linear back surface inclined at an angle equal to or less than the critical angle so that a first external light refracted and incident at a first location above the second location on the front surface side of the transmissive body portion of the transmissive lens at a predetermined viewing angle is refracted and emitted from the second bent portion of the transmissive lens, and when viewed from the outside at the predetermined viewing angle, a pseudo stripe is realized in which the color of the transmissive lens - the color of the non-transmissive portion - the color of the transmissive lens are arranged in this order by the first, second and third external light. It is something.

[0013] A vehicle lamp according to the present invention comprises an outer lens having the above-mentioned two-color molding structure, and a reflector provided behind the outer lens. Effect of the Invention

[0014] According to the present invention, on the surface of the transmission lens, pseudo stripes of transmitted lens color-non-transmitted color-transmitted lens color are formed by external light, changing the appearance of the transmission lens and improving the appearance in terms of design. [Brief description of the drawings]

[0015] [Figure 1] 1 is a cross-sectional view showing a first embodiment of a two-color molding structure according to the present invention. [Diagram 2] 2 is a cross-sectional view for explaining the operating principle of the two-color molding structure of FIG. 1 when viewed at a viewing angle of 0°. [Diagram 3] 2 is a cross-sectional view for explaining the operating principle of the two-color molding structure of FIG. 1 when viewed at viewing angles of 15° upward and 15° downward. FIG. [Figure 4] 2 is a cross-sectional view for explaining the operating principle of the two-color molding structure of FIG. 1 when viewed at viewing angles of 60° upward and 60° downward. [Diagram 5] FIG. 4 is a cross-sectional view showing a second embodiment of a two-color molding structure according to the present invention. [Figure 6]6 is a cross-sectional view for explaining the operating principle of the two-color molding structure of FIG. 5 when viewed at a viewing angle of 0°. [Figure 7] 2 is a front view showing a rear combination lamp provided with the two-color molding structure of FIG. 1. [Figure 8] FIG. 8 is a cross-sectional view taken along line VIII-VIII in FIG. [Figure 9] 8 shows the surface color of the rear combination lamp in FIG. 7, where (A) shows the case of the present invention and (B) shows the conventional case. [Figure 10] 2 is a cross-sectional view showing a modified example of the two-color molding structure of FIG. 1. [Figure 11] FIG. 1 is a cross-sectional view showing a conventional two-color molding structure. [Figure 12] FIG. 11 is a cross-sectional view showing a two-color molding structure as a comparative example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] Fig. 1 is a cross-sectional view showing a first embodiment of the two-color molding structure according to the present invention. Note that the up-down direction (vertical direction) and the front-rear direction (horizontal direction) in Fig. 1 are the vehicle directions of the rear combination provided with the two-color molding structure.

[0017] 1, the two-color molded structure functions as, for example, the outer lens of a rear combination lamp, and is made up of a transparent lens 1 and a non-transparent member 2. In this case, the transparent lens 1 is made up of a first molded part by injection molding, and is made of a crystalline resin such as red transparent, amber transparent, or colorless transparent polybutylene terephthalate (PBT), polyethylene terephthalate (PET), polyacetal (POM), etc. The non-transparent member 2 is made up of a second molded part by injection molding, and is made of a colored resin, for example, black acrylic resin.

[0018] In detail, the transparent lens 1 has a front surface 111 and a back surface 112 acting as an external light incidence surface, and is composed of a transparent body portion 11 extending in a vertical direction, a curved bent portion 12 that curves forward from the upper portion of the transparent body portion 11 and further curves toward the non-transparent member 2 and is joined to the non-transparent member 2, and a transparent extension portion 13 that extends horizontally from the curved bent portion 12 along the non-transparent member 2 and is joined to the non-transparent member 2. In this case, the horizontal length and vertical length of the curved bent portion 12 are, for example, 2.3 mm and 5.0 mm, and the curvature radius is 5 mm. On the other hand, the non-transparent member 2 is composed of a non-transparent body portion 21 extending in a horizontal direction, and a non-transparent extension portion 22 that extends downward from the front of the non-transparent body portion 21 and is joined to the upper portion of the transparent body portion 11 of the transparent lens 1 and the surface of the curved bent portion 12. In this case, the curved bent portion 12 of the transparent lens 1 is positioned below the non-transparent extension portion 22 of the non-transparent member 2. This increases the bonding area between the transparent lens 1 and the non-transparent member 2, and improves the bonding strength between the transparent lens 1 and the non-transparent member 2, ensuring high strength.

[0019] FIG. 2 is a cross-sectional view for explaining the operating principle of the two-color molding structure of FIG. 1 when viewed at a viewing angle of 0°.

[0020] As shown in FIG. 2, for external light rays L1, L2, and L3 refracted and incident on the surface 111 of the transmitting body part 11 of the transmitting lens 1 at a viewing angle of 0°, the back surface 112 of the transmitting body part 11 forms a transmitting region 11a, the lower back surface of the curved bent part 12 forms a total reflection region 12a, and the upper back surface of the curved bent part 12 forms a transmitting region 12b. More specifically, the total reflection region 12a on the lower back surface is formed at an angle backward with respect to the surface 111 of the transmitting lens 1, so that the light ray L2 incident from the front (viewing angle of 0°) is easily totally reflected toward the non-transmitting body part 21 of the non-transmitting member 2. The transmitting region 12b on the upper back surface is formed at an angle nearly parallel to the surface 111 of the transmitting lens 1, so that the light ray L1 incident from the front (viewing angle of 0°) is easily directed toward the inside of the lamp. That is, the light ray L1 refracted and incident on the transmitting body part 11 of the transmitting lens 1 is reflected at a critical angle θ c (In this example, θ c= 42.1°) or less, the light ray L1 reaches the transmission area 12b on the back surface of the curved bent portion 12, where it is refracted and emitted, and proceeds forward. As a result, the light ray L1 is returned by a reflector (not shown), and appears in the color of the transmission lens, that is, red. Also, the light ray L2 refracted and incident on the surface 111 of the transmission body portion 11 of the transmission lens 1 is c As a result, the light ray L2 reaches the total reflection region 12a of the curved bent portion 12, is totally reflected, and reaches the non-transmitting body portion 21 of the non-transmitting member 2. As a result, the light ray L2 is returned by the non-transmitting member 2 and appears in a non-transmitting color, that is, black. Furthermore, the light ray L3 refracted and incident on the transmitting body portion 11 of the transmitting lens 1 is reflected at a critical angle θ c Thereafter, the light ray L3 reaches the rear surface of the curved bent portion 12, where it is refracted and emitted, and proceeds forward. As a result, the light ray L3 is returned by a reflector (not shown), and appears to have the color of the transmitted lens, that is, red.

[0021] In this way, when viewed at a viewing angle of 0°, the surface of the transmitting lens 1 appears as clear pseudo-stripes of transmitted lens color (red)-non-transmitted color (black)-transmitted lens color (red) due to the external light rays L1, L2, and L3, thereby improving the appearance in terms of design.

[0022] FIG. 3 is a cross-sectional view for explaining the operating principle of the two-color molding structure of FIG. 1 when viewed at a viewing angle of 15°, where (A) shows the case when viewed at an upward viewing angle of 15° and (B) shows the case when viewed at a downward viewing angle of 15°.

[0023] As shown in Fig. 3A, when viewed at a viewing angle of 15°, the total reflection area 12a of the lower back surface of the curved bent portion 12 becomes smaller, while the transmission area 12b of the upper back surface becomes larger. However, due to the presence of the non-transmitting extension portion 22 of the non-transmitting member 2, the area of ​​the light ray L1 that is refracted and enters the transmitting body portion 11 of the transmitting lens 1 to become the transmitted lens color (red) does not increase. On the other hand, the area of ​​the light ray L2 that is refracted and enters the transmitting body portion 11 of the transmitting lens 1 to become the non-transmitted color (black) is greatly reduced. In addition, the area of ​​the light ray L3 that is refracted and enters the transmitting body portion 11 of the transmitting lens 1 to become the transmitted lens color (red) also increases.

[0024] As shown in FIG. 3B, when viewed at a viewing angle of 15° downward, the total reflection area 12a of the lower back surface of the curved bent portion 12 becomes large, while the transmission area 12b of the upper back surface becomes small. Therefore, the area of ​​the light ray L1 that is refracted and enters the transmission body portion 11 of the transmission lens 1 and becomes the transmission lens color (red) increases. The light ray L1 is refracted and exits the transmission area 12b of the curved bent portion 12, refracts and enters the transmission extension portion 13 again, and reaches the non-transmission body portion 21. In this case, the light ray L1 becomes the transmission lens color (red). Even if the total reflection area 12a becomes large, the total reflection area 12a is substantially reduced when viewed from the light ray L2. The area of ​​the light ray L2 that is refracted and enters the transmission body portion 11 of the transmission lens 1 and becomes the non-transmission color (black) decreases significantly. The area of ​​the light ray L3 that is refracted and enters the transmission body portion 11 of the transmission lens 1 and becomes the transmission lens color (red) increases.

[0025] In this way, when viewed at a viewing angle of 15° up and 15° down, the surface of the transmitting lens 1 shows pseudo stripes of the transmitted lens color (red) - a small area of ​​non-transmitted color (black) - transmitted lens color (red) due to external light rays L1, L2, L3, and therefore the appearance of the design is improved to some extent. Furthermore, the pseudo stripes are visible up to a viewing angle of 45° up and 45° down, and therefore the appearance of the surface is improved to some extent.

[0026] FIG. 4 is a cross-sectional view for explaining the operating principle of the two-color molding structure of FIG. 1 when viewed at a viewing angle of 60°, where (A) shows the case when viewed at an upward viewing angle of 60° and (B) shows the case when viewed at a downward viewing angle of 60°.

[0027] As shown in Fig. 4A, when viewed at a viewing angle of 60°, the total reflection area 12a of the lower back surface of the curved bent portion 12 becomes smaller, while the transmission area 12b of the upper back surface becomes larger. However, due to the presence of the non-transmitting extension portion 22 of the non-transmitting member 2, the area of ​​the light ray L1 that is refracted and incident on the transmitting body portion 11 of the transmitting lens 1 to become the transmitted lens color (red) disappears. At the same time, the area of ​​the light ray L2 that is refracted and incident on the transmitting body portion 11 of the transmitting lens 1 to become the non-transmitted color (black) also decreases significantly. On the other hand, the area of ​​the light ray L3 that is refracted and incident on the transmitting body portion 11 of the transmitting lens 1 to become the transmitted lens color (red) increases.

[0028] As shown in FIG. 4B, when viewed at a viewing angle of 60° downward, the total reflection area 12a of the lower back surface of the curved bent portion 12 becomes even larger, while the transmission area 12b of the upper back surface almost disappears. Therefore, there is no area of ​​the light ray L1 that is refracted and enters the transmission body portion 11 of the transmission lens 1 to become the transmission lens color (red). In addition, the total reflection area 12a becomes larger, and when viewed from the light ray L2, the total reflection area 12a also increases, and the area of ​​the light ray L2 that is refracted and enters the transmission body portion 11 to become the non-transmission color (black) increases significantly. On the other hand, the area of ​​the light ray L3 that is refracted and enters the transmission body portion 11 of the transmission lens 1 to become the transmission lens color (red) decreases.

[0029] In this way, in terms of viewing angle 60 °, bottom 60 When viewed from a 35° angle, the surface of the transmitting lens 1 has a non-transmitted color (black) minus the transmitted lens color (red) due to the external light rays L2 and L3, and no pseudo stripes are present, so the appearance in terms of design is not improved.

[0030] Fig. 5 is a cross-sectional view showing a second embodiment of the two-color molding structure according to the present invention. Note that the up-down direction (vertical direction) and the front-rear direction (horizontal direction) in Fig. 5 are the vehicle directions of the rear combination provided with the two-color molding structure.

[0031] In Fig. 5, an inclined / straight bent portion 12' is provided instead of the curved bent portion 12 in Fig. 1. The inclined / straight bent portion 12' has an inclined portion 12'a acting as a total reflection region and a straight portion 12'b acting as a transmission region. The inclined portion 12'a has a length of, for example, 5 mm and is inclined at 45° with respect to the vertical direction, and the straight portion 12'b has a length of, for example, 4 mm.

[0032] FIG. 6 is a cross-sectional view for explaining the operating principle of the two-color molding structure of FIG. 5 when viewed at a viewing angle of 0°.

[0033] As shown in FIG. 6, for external light rays L1, L2, and L3 with a viewing angle of 0° that are refracted and incident on the surface 111 of the transmission body 11 of the transmission lens 1, the light ray L1 that is refracted and incident on the transmission body 11 of the transmission lens 1 is incident on the surface 111 of the transmission body 11 at a critical angle θ c (In this example, θ c = 42.1°) or less, the light ray L1 reaches the linear portion (transmission region) 12'b on the rear surface of the inclined / linear bending portion 12', where it is refracted and emitted, and proceeds forward. As a result, the light ray L1 is returned by a reflector (not shown), and appears in the color of the transmission lens, that is, red. Also, the light ray L2 refracted and incident on the surface 111 of the transmission body portion 11 of the transmission lens 1 is c As a result, the light ray L2 reaches the inclined portion (total reflection region) 12'a of the inclined / linear bent portion 12', where it is totally reflected, and reaches the non-transmitting body portion 21 of the non-transmitting member 2. As a result, the light ray L2 is returned by the non-transmitting member 2 and appears in a non-transmitting color, that is, black. Furthermore, the light ray L3 refracted and incident on the transmitting body portion 11 of the transmitting lens 1 is refracted at a critical angle θ c The light ray L3 then reaches the rear surface of the curved bent portion 12, where it is refracted and emitted, and travels forward. As a result, the light ray L3 is returned by a reflector (not shown), and appears to be the color of the transmitted lens, i.e., red. In other words, similar to the two-color molded structure in FIG. 1, pseudo stripes are visible, improving the appearance of the design.

[0034] Since the inclined portion (total reflection region) 12'a is linear, when the viewing angle is increased, the angle of the incident light beam becomes equal to the critical angle θ c 5. Therefore, the viewing angle at which the pseudo stripes are visible is smaller than ±45° as compared to the curved total reflection region 12a of the first embodiment. Of course, it is possible to widen the viewing angle by adjusting the inclination angle of the inclined portion (total reflection region) 12'a, but it can be said that the two-color molding structure of FIG. 1 can widen the viewing angle and has a higher degree of freedom in design than the two-color molding structure of FIG. 5.

[0035] FIG. 7 is a front view of a rear combination lamp in which the two-color molding structure of FIG. 1 is applied as an outer lens.

[0036] As shown in FIG. 7, the outer lens OL is formed by integrally molding a transmissive lens (eg, red) 1 and a non-transmissive member (eg, black) 2 surrounding the transmissive lens 1 by injection molding.

[0037] FIG. 8 is a cross-sectional view taken along line VIII-VIII in FIG.

[0038] As shown in FIG. 8, the rear combination lamp is made up of a stop lamp LP1 and a tail lamp LP2, which are accommodated in a single housing H.

[0039] In the stop lamp LP1, an inner lens IL and a condenser lens FL are provided behind an outer lens OL, and a light emitting diode (LED) element package P is attached behind the condenser lens FL. A reflector RF1 is provided around the area between the inner lens IL and the condenser lens FL. The reflector RF1 also has the function of reflecting external light that enters the stop lamp LP1 through the outer lens OL as transmitted lens light.

[0040] The tail lamp LP2 is provided with a reflector RF2 and an LED element package (not shown) is attached to the rear of the reflector RF2. The reflector RF2 also has a function of reflecting external light that has entered the tail lamp LP2 through the outer lens OL as transmitted lens light.

[0041] The extensions EX1, EX2, and EX3 are provided to prevent light from leaking between the stop lamp LP1 and the tail lamp LP2 and to the outside.

[0042] When external light, for example, light rays L1, L2, and L3 in Fig. 2, are refracted and incident on the outer lens OL, a pseudo stripe of the transmitted lens color (e.g., red)-non-transmitted color (e.g., black)-transmitted lens color (e.g., red) appears on the outer periphery of the outer lens OL as shown in Fig. 9(A), improving the appearance in terms of design. The same is true when the two-color molding structure in Fig. 5 is applied. In contrast, the transmitted lens color (e.g., red) appears on the entire surface of the outer lens to which the conventional two-color molding structure in Fig. 12 is applied as shown in Fig. 9(B), and the appearance in terms of design is not improved.

[0043] 7, the two-color molding structure according to the present invention is applied to the upper and side surfaces of the vehicle lamp, but the two-color molding structure according to the present invention can also be applied to the lower surface. In other words, when the two-color molding structure according to the present invention is applied to the upper, side and lower surfaces, it is possible to create a design appearance in which black pseudo stripes go all the way around the inner circumference of the black non-transparent member of the transparent lens 1.

[0044] figure 10 2 is a cross-sectional view showing a modified example of the two-color molding structure of FIG. 1.

[0045] figure 10 As shown in (A) of FIG. 1, the transmitting extension 13 of the transmitting lens 1 can be omitted. In this case, there is almost no effect on the occurrence of pseudo stripes, but the bonding strength between the transmitting lens 1 and the non-transmitting member 2 decreases.

[0046] figure 10 As shown in (B) of FIG. 1, the non-transparent extension 22 of the non-transparent member 2 can be omitted. In this case, the color of the transparent lens (e.g., red) at the top of the pseudo stripes is likely to occur, which is favorable for preventing the occurrence of similar stripes, but the bonding strength between the transparent lens 1 and the non-transparent member 2 decreases.

[0047] The modification example of FIG. 11 can also be applied to the two-color molding structure of FIG.

[0048] Furthermore, the present invention can be applied to any modifications within the obvious scope of the above-described embodiment. [Industrial Applicability]

[0049] The present invention can be used for vehicle lamps other than rear combination lamps, such as headlights. In this case, the pseudo stripe is composed of a transmitted lens color (for example, white)-a non-transmitted color (for example, black)-transmitted lens color (for example, white). [Explanation of symbols]

[0050] 1:Transmitting lens 11:Transparent body part 111: Surface 112: Back side 12: Curved fold 12a: Total reflection area 12b:Transparent area 12': Inclined / Straight bend 12'a: Inclined part 12'b: Straight section 13: Transparent extension part 2: Non-transparent material 211: Surface 212: Back side 21: Non-transparent body part 22: Non-transparent extension 101:Transmitting lens 101a: Transparent extension 1011: Surface 1012: Back side 102: Non-transparent material 102a: Non-transparent extension 1021: Surface 1022: Back side 201:Transmitting lens 201a: Transparent extension 2011: Surface 2012: Back side 202: Non-transparent material OL: Outer lens RF1, RF2: Reflector

Claims

1. A two-color molding structure in which a transparent lens and a non-transparent member are integrally molded, The non-transmissive member includes a non-transmissive body portion extending in a first direction; The transmission lens is a transmissive body portion extending in a second direction; a first bent portion that is bent obliquely from an upper portion of the transmissive main body portion toward a rear surface side of the transmissive lens in the first direction, and a second bent portion that is bent linearly from the first bent portion toward the non-transmissive member in the second direction and joined to the non-transmissive member, the transmissive body portion has a back surface adjacent to the first bent portion, the back surface being formed at an angle equal to or less than a critical angle so that a third external light beam that is refracted and incident on a third location on the front surface side of the transmissive body portion of the transmissive lens at a predetermined viewing angle is refracted and emitted from a back surface side of the transmissive lens, the first bent portion has a linear back surface that is inclined at an angle equal to or greater than the critical angle so that a second external light beam that is refracted and incident at a second location above the third location on the front surface side of the transmissive body portion of the transmissive lens at the predetermined viewing angle is totally reflected by the first bent portion of the transmissive lens and is absorbed by the non-transmissive body portion, the second bent portion has a linear back surface that is inclined at an angle equal to or less than the critical angle so that a first external light beam that is refracted and incident at a first location above the second location on the front surface side of the transmissive body portion of the transmissive lens at the predetermined viewing angle is refracted and emitted from the second bent portion of the transmissive lens, A two-color molding structure that realizes pseudo-stripes arranged in the order of transmitted lens color-non-transmitting portion color-transmitting lens color by the first, second, and third external light when viewed from the outside at the specified viewing angle.

2. A two-color molding structure in which a transparent lens and a non-transparent member are integrally molded, The non-transparent member includes a non-transparent body portion extending in a first direction and a non-transparent extension portion extending downward from a front of the non-transparent body portion, The transmission lens is a transmissive body portion extending in a second direction and a bent portion; the bending portion includes a first bending region formed from an upper portion of the transmissive main body portion toward a rear surface side of the transmissive lens and inclined in the first direction, and a second bending region formed from the first bending region toward the non-transmissive member and inclined in the second direction and joined to the non-transmissive member, the transmissive body portion has a back surface adjacent to the first bent region, the back surface being formed at an angle equal to or less than a critical angle so that a third external light beam that is refracted and incident on a third location on the front surface side of the transmissive body portion of the transmissive lens at a predetermined viewing angle is refracted and emitted from a back surface side of the transmissive lens; the first bending region has a first linear back surface or a first curved back surface inclined at an angle equal to or greater than the critical angle so that a second external light beam that is refracted and incident at a second location above the third location on the front surface side of the transmissive body portion of the transmissive lens at the predetermined viewing angle is totally reflected by the first bending region of the transmissive lens and is absorbed by the non-transmissive body portion, the second bending region has a second linear back surface or a second curved back surface inclined at an angle equal to or less than the critical angle so that a first external light beam that is refracted and incident on a first location above the second location on the front surface side of the transmitting body portion of the transmitting lens at the predetermined viewing angle is refracted and emitted from the second bending region of the transmitting lens, A two-color molding structure in which, when viewed from the outside at the specified viewing angle, the first straight back surface or the first curved back surface, which is inclined at an angle equal to or greater than the critical angle of the first bending region, is located between the lower end of the non-transparent extension portion and the second straight back surface or the second curved back surface, which is inclined at an angle equal to or less than the critical angle of the second bending region, so that the non-transparent portion color due to the non-transparent extension portion, the non-transparent portion color due to the second external light, and the transparent lens color due to the third external light are viewed in this order.

3. 3. The two-color molded structure according to claim 1, wherein the transparent lens comprises a transparent extension extending from an upper portion of the bent portion along the non-transparent body portion and joined to the non-transparent body portion.

4. the transmission lens is made of a first molded part set by an injection molding method; 4. The two-color molded structure according to claim 1, wherein the non-transparent member is a second molded portion set subsequent to the first molded portion by the injection molding method.

5. The transmission lens is red transparent, amber transparent, or colorless transparent; The two-color molded structure according to claim 1 , wherein the non-transparent member is colored and non-transparent.

6. An outer lens having the two-color molding structure according to any one of claims 1 to 5; a reflector provided behind the outer lens; A vehicle lamp comprising:

7. A vehicle lamp comprising an outer lens having a two-color molded structure in which a transparent lens and a non-transparent member are integrally molded, and a light source that emits light incident on a back surface of the outer lens and outward from a front surface of the outer lens, The non-transmissive member includes a non-transmissive body portion extending in a first direction; The transmission lens is a transparent body portion having a front surface and a back surface acting as an external light incidence surface and extending in a second direction; a transparent extension portion extending in the second direction and joining the non-transparent body portion; a bending portion that bends and connects the transmission main body portion and the transmission extension portion; Equipped with The non-transmitting body portion is located along the outer edge of the outer lens, and a back surface of the non-transmitting body portion is joined to a front surface of the transmitting extension portion, The bent portion includes a transmissive region through which external light incident from the surface of the transmissive main body portion is transmitted when the bent surface is viewed at a viewing angle range of 15° up to 15° down, and a total reflection region that is located closer to the transmissive extension portion than the transmissive region and is formed at an angle so as to totally reflect the external light toward the non-transmissive main body portion through the transmissive extension portion, When the outer lens is viewed at a viewing angle range of 15° above to 15° below due to external light entering the vehicle lamp, the transmitted lens color due to external light that has passed through the transparent region along the outer edge of the outer lens, the non-transmitting body color due to external light that has been reflected in the total reflection region, and the transmitted lens color due to external light that has passed through the transparent lens are observed in this order from the outer edge side.

8. The non-transparent member includes a non-transparent extension portion extending from a front of the non-transparent main body portion in a direction opposite to the outer edge of the outer lens, the bent portion is located in a direction farther from an outer edge of the outer lens than the non-transmitting extension portion, 8. The vehicular lamp according to claim 7, wherein a transmitted lens color due to external light that has passed through the transmissive region along the outer edge of the outer lens is viewed between a non-transmissive color due to the non-transmissive extension portion and a non-transmissive main body color due to external light reflected at the total reflection region.

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