Display lighting fixture

Abstract

Provided is a display lighting fixture configured to emit outgoing light from a light source toward the front of the lighting fixture through a light transmission control member, thereby making a partial area of the light transmission control member emit light, wherein, when the lighting fixture is not turned on, the partial area appears with an arbitrary color tone and when the lighting fixture is turned on, the partial area appears to emit light in a state in which a sufficient contrast difference is secured with respect to the other areas. The light transmission control member (40) is configured such that a first light-shielding film (44) and a second light-shielding film (46) having lower brightness than the first light-shielding film (44) are laminated on the rear surface (14b) of a light transmission cover (14) in this order via a colorless and transparent film (42). At this time, the first light-shielding film (44) is configured such that a plurality of first through-holes (44a) are formed in a region corresponding to the partial area (Z). The second light-shielding film (46) is configured such that a second through-hole (46a) is formed in a region corresponding to each of the plurality of first through-holes (44a).

Description

Display lamp

[0001] The present invention relates to an indicator lamp to be mounted on a vehicle or the like.

[0002] Conventionally, indicator lamps mounted on vehicles and the like have been known that are configured to emit light from a light source through a light-transmittance control member toward the front of the lamp, thereby causing a partial area of ​​the light-transmittance control member to emit light.

[0003] Patent Document 1 describes a configuration of such an indicator lamp in which a metallic light-shielding film layer is formed on a part of the front surface of the light-transmission control member.

[0004] The indicator lamp described in Patent Document 1 is configured so that when the lamp is not lit, the light-shielding film layer appears to reflect external light, while when the lamp is lit, the surrounding area of ​​the light-shielding film layer appears to glow due to the light emitted from the light source.

[0005] Japanese Utility Model Application Laid-Open Publication No. 06-010983

[0006] In terms of the configuration of such an indicator lamp, it is desirable to make a portion of the light-transmitting control member appear in a desired color tone when the lamp is not lit, and to make the portion appear to emit light while ensuring a sufficient contrast in brightness relative to the remaining areas when the lamp is lit, in order to enhance its display function.

[0007] The present invention has been made in consideration of the above circumstances, and aims to provide an indicator lamp that is configured to illuminate a partial area of ​​a light-transmittance control member by irradiating light emitted from a light source toward the front of the lamp through a light-transmittance control member, and that can make the partial area appear to have any color tone when the lamp is not lit, and can make the partial area appear to emit light while ensuring a sufficient contrast in brightness compared to the remaining areas when the lamp is lit.

[0008] The present invention is intended to achieve the above object by devising a configuration for the light-transmittance control member.

[0009] That is, the indicator lamp of the present invention is an indicator lamp configured to illuminate a partial area of ​​the light-transmitting control member by irradiating light emitted from a light source toward the front of the lamp through a light-transmitting control member, wherein the light-transmitting control member comprises a light-transmitting plate and a light-shielding film formed on the surface of the light-transmitting plate, the light-shielding film is configured such that a first light-shielding film located on the front side of the lamp and a second light-shielding film located on the rear side of the lamp are arranged in an overlapping state when viewed from the front of the lamp, the first light-shielding film is configured so that a plurality of first through holes are formed in areas corresponding to the partial area, and the second light-shielding film is configured as a light-shielding film having a lower brightness than the first light-shielding film, and second through holes are formed in areas corresponding to each of the plurality of first through holes.

[0010] The above-mentioned "indicator lamp" is not particularly limited in type as long as it is configured so that a partial area of ​​the light-transmitting control member can emit light, and for example, an illuminating emblem or indicator lamp attached to a vehicle, etc., can be used.

[0011] The type of the "light source" is not particularly limited, and for example, a light emitting element such as a light emitting diode, an incandescent bulb, or the like can be used.

[0012] The specific location and size of the "partial region" are not particularly limited.

[0013] The "light-shielding film" is formed on the surface of a light-transmitting plate, and the specific manner of arrangement is not particularly limited as long as the first light-shielding film and the second light-shielding film are arranged in an overlapping state when viewed from the front of the lamp. That is, the light-transmitting control member may be configured such that the first and second light-shielding films are arranged in a stacked state on the front or rear surface of the light-transmitting plate, or the first light-shielding film is arranged on the front surface of the light-transmitting plate and the second light-shielding film is arranged on the rear surface of the light-transmitting plate.

[0014] The "second light-shielding film" is not particularly limited in terms of hue or saturation, as long as it is configured as a light-shielding film having a lower brightness than the first light-shielding film.

[0015] As long as the "plurality of first through holes" are formed in areas corresponding to the partial region, there are no particular limitations on their specific number or arrangement, and there are also no particular limitations on the specific opening shape or size of each of them.

[0016] The specific opening shape and size of each of the plurality of "second through holes" are not particularly limited as long as they are formed in positions corresponding to the respective plurality of first through holes.

[0017] The indicator lamp of the present invention is configured so that light emitted from a light source is irradiated toward the front of the lamp through a light-transmittance control member, causing a partial area of ​​the light-transmittance control member to emit light. The light-transmittance control member is configured so that a light-shielding film is formed on the surface of a light-transmitting plate, and the light-shielding film is configured so that a first light-shielding film located on the front side of the lamp and a second light-shielding film located on the rear side of the lamp are arranged in an overlapping state when the lamp is viewed from the front. In this case, the first light-shielding film is configured so that a plurality of first through holes are formed in areas corresponding to the partial area, while the second light-shielding film is configured so that it has a lower brightness than the first light-shielding film and has second through holes formed in areas corresponding to each of the plurality of first through holes, so that the following effects can be obtained.

[0018] In other words, when the lamp is not lit, the light-transmitting control member is exposed to external light, allowing the first light-shielding film located in front of the lamp to be seen, and at that time, the light-transmitting control member appears in a color tone corresponding to the color or pattern applied to the first light-shielding film.

[0019] On the other hand, when the lamp is turned on, the light emitted from the light source is irradiated toward the front of the lamp through a plurality of first and second through holes formed in the portions of the first and second light-shielding films corresponding to the above-mentioned partial areas, causing the above-mentioned partial areas to appear to emit light.

[0020] In this case, if the configuration of the light-transmitting control member were such that only the first light-shielding film was formed on the surface of the light-transmitting plate and the second light-shielding film was not formed, the light emitted from the light source would reach the first light-shielding film as is, and when the lamp was turned on, the small amount of light that passed through the first light-shielding film would cause areas other than the above-mentioned area to appear to glow dimly.

[0021] However, in the light-transmitting control member of the present invention, a second light-blocking film having a lower brightness than the first light-blocking film is disposed behind the lamp, so that light emitted from the light source can be prevented from reaching the first light-blocking film as is, thereby effectively preventing areas other than the partial area from appearing to emit light dimly. Therefore, the light-transmitting control member is configured so that, when the lamp is turned on, the partial area appears to emit light approximately uniformly while ensuring a sufficient difference in brightness relative to the other areas.

[0022] Thus, according to the present invention, in an indicator lamp configured to illuminate a partial region of the light-transmission control member by irradiating light emitted from a light source forward through the light-transmission control member, the partial region can be made to appear in a desired color tone when the lamp is off, and can be made to appear to illuminate with sufficient contrast relative to the remaining region when the lamp is on, thereby improving the display function of the indicator lamp.

[0023] In the above configuration, if the first light-shielding film is configured so that the portion corresponding to the partial area is divided into a plurality of areas with different color tones, the partial area can be made to appear as a novel pattern when the lamp is not lit, thereby enhancing the design of the light-transmitting control member.

[0024] In the above configuration, if the second light-shielding film is further configured as a black light-shielding film, the difference in brightness between the above-mentioned part of the area and the other areas when the lamp is turned on can be maximized, thereby further enhancing the display function as an indicator lamp.

[0025] In the above configuration, if the second through hole is formed with a smaller opening diameter than the first through hole, it is possible to prevent a portion of the light emitted from the light source from entering the first light-shielding film when the light passes through the second through hole, thereby preventing the emission color of the light-transmitting control member from being different from the intended emission color.

[0026] In the above configuration, if the light-transmitting control member is configured such that a film on which the first and second light-shielding films are printed is laminated on the surface of the light-transmitting plate, the first and second light-shielding films can be formed with high positional accuracy.

[0027] In this case, if the light-transmitting control member is configured as a film insert molding, the film can be laminated on the surface of the light-transmitting plate with high positional accuracy, thereby improving the design of the light-transmitting control member.

[0028] 1A is a front view showing an indicator lamp according to one embodiment of the present invention; FIG. 1B is a cross-sectional view taken along line II-II in FIG. 1; FIG. 2A is a detailed view of part III in FIG. 2; FIG. 3A is a back view showing an optical member of the indicator lamp alone; FIG. 3A is a detailed view of part Va in FIG. 3, and FIG. 3B is a similar view to FIG. 3A showing a comparative example of the embodiment; FIG. 5A is a view taken in the direction of an arrow VI in FIG. 5A;

[0029] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0030] Fig. 1 is a front view showing an indicator lamp 10 according to an embodiment of the present invention, and Fig. 2 is a cross-sectional view taken along line II-II in Fig. 1.

[0031] 1 and 2, the direction indicated by X is the "front of the lamp," the direction indicated by Y is the "left direction" (the "right direction" when viewed from the front of the lamp) perpendicular to the "front of the lamp," and the direction indicated by Z is the "upward direction." This is the same in other figures.

[0032] As shown in FIGS. 1 and 2, an indicator lamp 10 according to this embodiment is a light-emitting emblem to be attached to a vehicle or the like, and has a vertically symmetrical configuration.

[0033] The indicator lamp 10 is configured so that light emitted from the two light sources 20 is irradiated toward the front of the lamp through the light-transmitting control member 40, causing a portion Z of the light-transmitting control member 40 to appear to emit light when viewed from the front of the lamp, thereby allowing it to function as a light-emitting emblem.

[0034] Specifically, the indicator lamp 10 is configured such that two light sources 20 and an optical element 30 are incorporated into a lamp chamber formed by a lamp body 12 and a translucent cover 14 attached to its front end opening, and the translucent cover 14 is given the function of a translucency control element 40.

[0035] FIG. 7 is a front view showing the indicator lamp 10 in a non-illuminated state, and FIG. 8 is a front view showing the indicator lamp 10 in a lit state.

[0036] 7 and 8, the partial region Z corresponds to the luminous shape of the luminous emblem and is composed of a central region ZA formed in a rightward V-shape (a leftward V-shape when viewed from the front of the lamp) and a peripheral region ZB formed in a horizontally elongated ring shape around the central region ZA. In this case, the left edge of the central region ZA extends to a position where it overlaps with the peripheral region ZB at two points above and below, but there is a certain gap between the left edge of the central region ZA and the peripheral region ZB.

[0037] 1 and 2, the two light sources 20 are both white light-emitting diodes, and are arranged spaced apart in the vertical direction with their light-emitting surfaces 20a facing forward (specifically, toward the front of the lamp). The pair of upper and lower light sources 20 are mounted on a common substrate 22 and supported by the lamp body 12.

[0038] The optical member 30 is a colorless and transparent resin member (e.g., a polycarbonate resin member) that has a horizontally elongated oval outer shape when viewed from the front of the lamp and is disposed so as to cover the pair of upper and lower light sources 20 from the front side of the lamp. The optical member 30 is configured to emit light from the two light sources 20 as substantially parallel light toward the front of the lamp. The optical member 30 has an outer peripheral flange portion 30c that is formed on the outer periphery of the base plate 22 and extends toward the rear side of the lamp, and is supported by the lamp body 12 at the outer peripheral flange portion 30c.

[0039] The optical element 30 includes a pair of upper and lower incident portions 32 for receiving light emitted from a pair of upper and lower light sources 20, a pair of upper and lower first reflecting surfaces 34 for totally reflecting the light incident from the pair of upper and lower incident portions 32, and second reflecting surfaces 36A, 36B for totally reflecting the light totally reflected from the pair of upper and lower first reflecting surfaces 34.

[0040] Each of the pair of upper and lower incident portions 32 is disposed on the rear surface 30 b of the optical member 30 so as to be positioned in front of each of the pair of upper and lower light sources 20 .

[0041] The pair of upper and lower first reflecting surfaces 34 are arranged on the front surface 30 a of the optical member 30 so as to be positioned in front of the pair of upper and lower incident portions 32 of the lamp.

[0042] Next, a specific configuration of the light-transmitting control member 40 will be described.

[0043] Fig. 3 is a detailed view of part III in Fig. 2. In Fig. 3, the indicator lamp 10 is shown with the front of the lamp facing upward.

[0044] 3, the light-transmitting control member 40 is configured by forming first and second light-shielding films 44, 46 on the surface of the light-transmitting cover 14, which is configured from a colorless and transparent resin member (for example, a polycarbonate resin member). In this case, the first and second light-shielding films 44, 46 are configured so that the first light-shielding film 44 located on the front side of the lamp and the second light-shielding film 46 located on the rear side of the lamp overlap each other when viewed from the front of the lamp.

[0045] Specifically, the light-transmitting control member 40 is configured as a film insert molding product in which a colorless and transparent film 42 on which first and second light-blocking films 44, 46 are printed is laminated on the rear surface 14b of the light-transmitting cover 14. That is, the light-transmitting control member 40 is manufactured by injection molding the light-transmitting cover 14 using the colorless and transparent film 42 on which the first and second light-blocking films 44, 46 are printed as an insert. In this process, the film 42 and the first and second light-blocking films 44, 46 are formed along the rear surface 14b of the light-transmitting cover 14 so as to wrap around to the inner circumferential surface of the outer circumferential flange portion 14c thereof.

[0046] In the light-transmitting control member 40, the second light-shielding film 46 is configured as a light-shielding film having a lower brightness than the first light-shielding film 44. The first light-shielding film 44 is configured such that a plurality of first through holes 44a are formed in a portion corresponding to the partial region Z. The second light-shielding film 46 is configured such that second through holes 46a are formed in portions corresponding to each of the plurality of first through holes 44a.

[0047] Fig. 5(a) is a detailed view of the portion Va in Fig. 3. Fig. 6 is a view taken in the direction of the arrow VI in Fig. 5(a).

[0048] 6, in the first light-shielding film 44, a light-emitting corresponding portion 44B corresponding to a peripheral region ZB in the partial region Z is made of a blue light-shielding film, and the other peripheral portion 44C is made of a white light-shielding film. Note that, as shown in Fig. 7, a light-emitting corresponding portion 44A corresponding to a central region ZA in the partial region Z is made of a blue light-shielding film, similar to the light-emitting corresponding portion 44B.

[0049] The first through holes 44a formed in the first light-shielding film 44 are two-dimensionally arranged at approximately equal intervals and all have the same size circular opening shape. On the other hand, the second through holes 46a formed in the second light-shielding film 46 each have a circular opening shape smaller than the first through holes 44a and are arranged concentrically.

[0050] Specifically, for example, each of the multiple first through holes 44a is formed with an opening diameter of approximately 1 mm, and the pitch between them is set to a value of approximately 2 mm, while each of the multiple second through holes 46a is formed with an opening diameter of approximately 0.4 to 0.8 mm.

[0051] FIG. 4 is a rear view showing the optical member 30 alone.

[0052] 3 and 4, each incident portion 32 of the optical member 30 is formed so as to protrude in a truncated cone shape from the rear surface 30b of the optical member 30 toward the rear of the lamp, and the rear end surface 32a is configured as an incident surface onto which light emitted from each light source 20 is incident. In this case, each incident portion 32 is formed around an imaginary axis Ax that extends in the fore-and-aft direction of the lamp and passes through the light-emitting center of each light source 20. As a result, each incident portion 32 refracts the light emitted from each light source 20 from the rear end surface 32a in a direction closer to the imaginary axis Ax, causing it to enter the optical member 30.

[0053] Each first reflecting surface 34 of the optical member 30 is configured as an annular convex curved surface portion centered on the imaginary axis Ax, and is formed so as to totally reflect the incident light from each incident portion 32 toward the outer periphery around the imaginary axis Ax. At this time, each first reflecting surface 34 totally reflects the incident light from each incident portion 32 as convergent light toward the rear of the lamp within a plane including the imaginary axis Ax.

[0054] The second reflecting surfaces 36A, 36B of the optical member 30 are disposed on the rear surface 30b of the optical member 30 at locations corresponding to the central area ZA and the peripheral area ZB of the partial area Z. In this case, the second reflecting surfaces 36A, 36B are formed with an outer peripheral edge shape that is slightly larger than the partial area Z, and therefore the two are integrated into one area.

[0055] The second reflecting surface 36A is composed of a plurality of reflecting elements 36As, and the second reflecting surface 36B is composed of a plurality of reflecting elements 36Bs. These plurality of reflecting elements 36As, 36Bs are arranged concentrically in the upper half of the second reflecting surfaces 36A, 36B about an imaginary axis Ax located above (i.e., an axis passing through the light-emitting center of the light source 20 located above), and all have a sawtooth cross-sectional shape. Furthermore, these plurality of reflecting elements 36As, 36Bs are arranged concentrically in the lower half of the second reflecting surfaces 36A, 36B about an imaginary axis Ax located below, and all have a sawtooth cross-sectional shape.

[0056] These multiple reflective elements 36As, 36Bs are formed so as to totally reflect the light emitted from the light source 20, which has been totally reflected by the first reflective surface 34, substantially toward the front of the lamp. In this case, since the second reflective surfaces 36A, 36B are formed with an outer peripheral edge shape that is slightly larger than the partial region Z, the reflected light from these second reflective surfaces 36A, 36B is sure to reach the light-emitting corresponding portions 44A, 46B of the first and second light-shielding films 44, 46.

[0057] Next, the effects of this embodiment will be described.

[0058] The indicator lamp 10 according to this embodiment is configured so that light emitted from a pair of upper and lower light sources 20 is directed toward the front of the lamp via the optical member 30 and the light-transmitting control member 40, thereby causing a partial area Z of the light-transmitting control member 40 to emit light. The light-transmitting control member 40 is configured so that light-shielding films 44, 46 are formed on the rear surface 14b of the light-transmitting cover 14 (i.e., the “surface of the light-transmitting plate”). The light-shielding films 44, 46 are configured so that a first light-shielding film 44 located on the front side of the lamp and a second light-shielding film 46 located on the rear side of the lamp overlap each other when viewed from the front of the lamp. In this case, the first light-shielding film 44 has a plurality of first through-holes 44a formed in a portion corresponding to the partial area Z. On the other hand, the second light-shielding film 46 is configured as a light-shielding film having a lower brightness than the first light-shielding film 44, and has second through-holes 46a formed in portions corresponding to each of the plurality of first through-holes 44a. As a result, the following effects can be obtained.

[0059] That is, as shown in Figure 7, when the lamp is not lit, the light-transmitting control member 40 is illuminated by external light, and the first light-shielding film 44 located in front of the lamp is visible. At this time, the light-emitting corresponding portions 44A and 44B corresponding to the central region ZA and peripheral region ZB in the partial region Z appear blue, and the other peripheral portion 44C appears white.

[0060] On the other hand, as shown in Figure 8, when the lamp is turned on, the light emitted from the pair of upper and lower light sources 20 is irradiated toward the front of the lamp through the multiple first and second through holes 44a, 46a formed in the light-emitting corresponding portions 44A, 44B of the first and second light-shielding films 44, 46 of the light-transmitting control member 40, so that the light-emitting corresponding portion 44A located in the central region ZA of the partial region Z appears to emit bright light in a right-facing V-shape, and the light-emitting corresponding portion 44B located in the peripheral region ZB of the partial region Z appears to emit bright light in a horizontally elongated ring shape.

[0061] In this case, if the configuration of the light-transmitting control member 40 were such that only the first light-shielding film 44 was formed on the rear surface 14b of the light-transmitting cover 14 and the second light-shielding film 46 was not formed, the light emitted from the pair of upper and lower light sources 20 would reach the first light-shielding film 44 as is, and when the lamp is turned on, the small amount of light that passes through this first light-shielding film 44 would cause areas other than the part of area Z to appear to glow dimly.

[0062] However, in the light-transmitting control member 40 of this embodiment, the second light-blocking film 46, which has a lower brightness than the first light-blocking film 44, is disposed behind the lamp, so that light emitted from the pair of upper and lower light sources 20 can be prevented from reaching the first light-blocking film 44 as is, thereby effectively preventing areas other than the partial area Z from appearing to emit light dimly. Therefore, the light-transmitting control member 40 is configured so that the partial area Z appears to emit light approximately uniformly while ensuring a sufficient difference in brightness relative to the other areas when the lamp is turned on.

[0063] As described above, according to this embodiment, in the indicator lamp 10 configured to emit light from a pair of upper and lower light sources 20 via the light-transmitting control member 40 toward the front of the lamp, the partial region Z of the light-transmitting control member 40 can be made to appear in a desired color tone when the lamp is off, and can be made to appear to emit light with a sufficient contrast between the partial region Z and the other regions when the lamp is on. This improves the display function of the indicator lamp 10.

[0064] Furthermore, the display lamp 10 of this embodiment is equipped with an optical element 30 for controlling the transmission of light emitted from the pair of upper and lower light sources 20, and is configured so that the light incident on this optical element 30 is sequentially totally reflected and emitted toward the light-emitting corresponding portions 44A, 44B of the first and second light-shielding films 44, 46, so that when the lamp is turned on, a certain area Z can be made to appear to emit light more brightly.

[0065] In particular, in the light-transmitting control member 40 of this embodiment, the second light-shielding film 46 is configured as a black light-shielding film, so that the difference in brightness between the part of the area Z and the other areas when the lamp is turned on can be maximized, thereby further enhancing the display function of the indicator lamp 10.

[0066] Furthermore, in the light-transmitting control member 40 of this embodiment, the second through-hole 46a formed in the second light-shielding film 46 has a smaller opening diameter than the first through-hole 44a formed in the first light-shielding film 44, and therefore the following effects can be obtained.

[0067] That is, suppose a light-transmitting control member 40' as shown in Fig. 5(b) is used instead of the light-transmitting control member 40 of this embodiment. In contrast to the light-transmitting control member 40, this light-transmitting control member 40' has a configuration in which first through-holes 44a' formed in a first light-shielding film 44' have a smaller opening diameter than second through-holes 46a' formed in a second light-shielding film 46' (specifically, the first through-holes 44a' have the same opening diameter as the second through-holes 46a shown in Fig. 5(a) , and the second through-holes 46a' have the same opening diameter as the first through-holes 44a shown in Fig. 5(a) ).

[0068] Even with this configuration, when the lamp is turned on, the partial region Z appears to emit light with approximately the same brightness as in the present embodiment. However, with this configuration, a portion of the light emitted from the light source 20 and reaching the second through-hole 46a' of the second light-shielding film 46' reaches the first light-shielding film 44' and is slightly emitted forward through the first light-shielding film 44', resulting in dim, diffused forward illumination. As a result, the light emitted from the light-transmitting control member 40' may be bluish and may differ from the intended color. Incidentally, the light entering the first light-shielding film 44' through the second through-hole 46a' of the second light-shielding film 46' may include light entering from the rear surface of the first light-shielding film 44' and light entering from the inner circumferential surface of the second through-hole 46a'.

[0069] In contrast to this, in the light-transmitting control member 40 of this embodiment, as shown in FIG. 5( a), the second through-hole 46 a formed in the second light-shielding film 46 is formed with a smaller opening diameter than the first through-hole 44 a formed in the first light-shielding film 44. Therefore, the light emitted from the light source 20 and reaching the second through-hole 46 a in the second light-shielding film 46 is irradiated toward the front of the lamp without entering the first light-shielding film 44, thereby preventing the light emission color of the light-transmitting control member 40 from becoming bluish.

[0070] If it is important to prevent (or suppress) the area around the second through hole 46 a in the second light-shielding film 46 from appearing black through the first through hole 44 a formed in the first light-shielding film 44 when the lamp is off, it is desirable to set the opening diameter of the first through hole 44 a and the opening diameter of the second through hole 46 a to the same value (or to set the opening diameter of the second through hole 46 a to a value slightly smaller than the opening diameter of the first through hole 44 a). In this case, even if the opening diameter of the first through hole 44 a and the opening diameter of the second through hole 46 a are set to the same value, it is difficult to achieve this when commercializing the light-transmitting control member 40, so it is more realistic to set the opening diameter of the second through hole 46 a to a value slightly smaller than the opening diameter of the first through hole 44 a.

[0071] Furthermore, the light-transmitting control member 40 of this embodiment is configured such that the film 42, on which the first and second light-blocking films 44, 46 are printed, is laminated on the rear surface 14b of the light-transmitting cover 14, so that the first and second light-blocking films 44, 46 can be formed with high positional accuracy. Moreover, because the light-transmitting control member 40 is configured as a film insert molding, the film 42 can be laminated on the rear surface 14b of the light-transmitting cover 14 with high positional accuracy, thereby improving the design of the light-transmitting control member 40. In this case, the film 42 and the first and second light-blocking films 44, 46 are formed so as to wrap around to the inner circumferential surface of the outer circumferential flange portion 14c of the light-transmitting cover 14, so that it is possible to prevent a situation in which stray light is inadvertently emitted from the outer circumferential flange portion 14c of the light-transmitting cover 14.

[0072] In the above embodiment, the partial area Z along the luminous shape of the luminous emblem is described as being composed of a right-facing V-shaped central area ZA and a horizontally elongated elliptical annular peripheral area ZB, but it is also possible to configure it in a shape other than this.

[0073] In the above embodiment, the first light-shielding film 44 is described as having its light-emitting corresponding portions 44A and 44B made of blue light-shielding film and its peripheral portion 44C made of white light-shielding film, but it is also possible to have it made of other color combinations.

[0074] In the above embodiment, the first and second through holes 44a, 46a have been described as having circular opening shapes, but they may also have opening shapes other than this.

[0075] In the above embodiment, the indicator lamp 10 is described as being equipped with an optical element 30 for controlling the transmission of light emitted from the light source 20, but it is also possible to adopt a configuration that includes a reflector for reflecting the light emitted from the light source 20 toward the light-emitting corresponding portions 44A, 44B of the first and second light-shielding films 44, 46, or a configuration in which the light emitted from the light source 20 is directly incident on the light-emitting corresponding portions 44A, 44B.

[0076] In the above embodiment, the light sources 20 are described as being arranged in two locations, one above the other, but it is also possible to configure the two light sources 20 to be arranged in positions different from those in the above embodiment, and it is also possible to configure the light sources 20 to be arranged in one or three or more locations.

[0077] Next, a modification of the above embodiment will be described.

[0078] First, a first modification of the above embodiment will be described.

[0079] FIG. 9 is a view similar to FIG. 2, showing an indicator lamp 110 according to this modified example.

[0080] As shown in FIG. 9, the basic configuration of this modification is the same as that of the above embodiment, but the configuration of the light-transmitting control member 140 is partially different from that of the above embodiment.

[0081] That is, the light-transmitting control member 140 of this modified example also has a configuration in which a colorless and transparent film 142 on which first and second light-shielding films 144, 146 are printed is laminated on the rear surface 14b of the light-transmitting cover 14, but it differs from the above embodiment in that the light-emitting corresponding portion 144A of the first light-shielding film 144 is divided into multiple areas with different color tones.

[0082] Specifically, with regard to the light-emitting corresponding portions 144B and 144C in the first light-shielding film 144, as in the above embodiment, the light-emitting corresponding portion 144B is made of a blue light-shielding film and the light-emitting corresponding portion 144C is made of a white light-shielding film, but the light-emitting corresponding portion 144A is made of a light-shielding film that is divided into multiple regions in a mosaic pattern of varying shades of blue.

[0083] In the light-transmitting control member 140 of this modified example, a plurality of first and second through holes 144a, 146a are formed in the light-emitting corresponding portions 144A, 146B of the first and second light-shielding films 144, 146, as in the above embodiment.

[0084] Even when the configuration of this modified example is adopted, substantially the same effects as those in the above embodiment can be obtained.

[0085] Furthermore, by adopting the configuration of this modified example, the display lamp 110 can be configured so that a portion of area Z appears with an innovative pattern when the lamp is not lit, thereby enhancing the design of the light-transmitting control member 140.

[0086] In this modified example, the light-emitting corresponding portion 144A of the first light-shielding film 144 has been described as being divided into multiple regions with varying shades of blue, but it is also possible to configure it as being divided into multiple regions with different hues or patterns.

[0087] Next, a second modification of the above embodiment will be described.

[0088] FIG. 10A is a view similar to FIG. 5A, showing a main part of a light-transmitting control member 240 in an indicator lamp according to this modified example.

[0089] As shown in FIG. 10A, the basic configuration of this modification is the same as that of the above embodiment, but the configuration of the light-transmitting control member 240 is partially different from that of the above embodiment.

[0090] That is, the light-transmitting control member 240 of this modified example is disposed on the rear side of the lamp as a member independent of the light-transmitting cover 14. Specifically, the light-transmitting control member 240 is configured such that a first light-blocking film 244 is formed on the front surface of a light-transmitting plate 248 that is disposed so as to extend along the light-transmitting cover 14 in the vicinity of the rear surface 14b of the light-transmitting cover 14, and a second light-blocking film 246 is formed on the rear surface thereof.

[0091] The light-transmitting plate 248 is a colorless, transparent resin member (for example, a polycarbonate resin member) and is formed with a thickness thinner than that of the light-transmitting cover 14 .

[0092] In the light-transmitting control member 240 of this modified example, the configurations of the first and second light-shielding films 244, 246 themselves are the same as those in the above embodiment. That is, a plurality of first and second through-holes 244 a, 246 a are formed in the first and second light-shielding films 244, 246, and the second through-holes 246 a are formed with a smaller opening diameter than the first through-holes 244 a.

[0093] Even when the configuration of this modified example is adopted, substantially the same effects as those in the above embodiment can be obtained.

[0094] Furthermore, in this modified example, the configuration of the translucent cover 14 remains the same, but a translucent control member 240 is additionally placed inside the lamp chamber, thereby achieving substantially the same effects as in the above embodiment.

[0095] In this modified example, the first light-shielding film 244 is formed on the front surface of the light-transmitting plate 248 and the second light-shielding film 246 is formed on the rear surface thereof. However, it is also possible to configure the first and second light-shielding films 244, 246 to be stacked on the rear surface (or front surface) of the light-transmitting plate 248.

[0096] Next, a third modification of the above embodiment will be described.

[0097] FIG. 10B is a view similar to FIG. 5A, showing a main part of the light-transmitting control member 340 in the indicator lamp according to this modified example.

[0098] As shown in FIG. 10B, the basic configuration of this modification is similar to that of the above embodiment, but the configuration of the light-transmitting control member 340 is partially different from that of the above embodiment.

[0099] That is, the light-transmitting control member 340 of this modified example is also disposed on the rear side of the lamp as a member independent of the light-transmitting cover 14. Specifically, the light-transmitting control member 340 is configured as a film insert molding product, in which a colorless and transparent film 342, on which first and second light-blocking films 344, 346 are printed, is laminated on the rear surface of a light-transmitting plate 348 disposed so as to extend along the light-transmitting cover 14 in the vicinity of the rear surface 14b of the light-transmitting cover 14.

[0100] In this case, the light-transmitting plate 348 is made of a transparent resin member (for example, a polycarbonate resin member) in which a diffusing material is dispersed, and is formed with a thickness thinner than that of the light-transmitting cover 14 .

[0101] In the light-transmitting control member 340 of this modified example, the configuration of the first and second light-shielding films 344, 346 is the same as in the above embodiment, and a plurality of first and second through holes 344a, 346a are formed in these first and second light-shielding films 344, 346, with the second through holes 346a having a smaller opening diameter than the first through holes 344a.

[0102] Even when the configuration of this modified example is adopted, substantially the same effects as those in the above embodiment can be obtained.

[0103] Furthermore, by adopting the configuration of this modified example, the light that reaches the light-transmitting control member 340 can be diffused by the light-transmitting plate 348 and then incident on the light-transmitting cover 14, thereby making it possible for the portion of the area Z to appear to emit light more uniformly when the lamp is turned on.

[0104] In this modified example, the first and second light-shielding films 344, 346 are described as being printed on the rear surface of the film 342, but it is also possible to configure them as being printed on the front surface of the light-transmitting plate 348.

[0105] Furthermore, in this modified example, the film 342 on which the first and second light-shielding films 344, 346 are printed is described as being laminated on the rear surface of the light-transmitting plate 348, but it is also possible to configure it so that it is laminated on the front surface of the light-transmitting plate 348.

[0106] It should be noted that the numerical values ​​shown as the specifications in the above embodiment and its modified examples are merely examples, and it goes without saying that these may be set to different values ​​as appropriate.

[0107] Furthermore, the present invention is not limited to the configurations described in the above embodiment and its modifications, and various other modified configurations can be adopted.

[0108] This international application claims priority based on Japanese Patent Application No. 2024-045723, filed on March 21, 2024, the entire contents of which are incorporated herein by reference.

[0109] The above descriptions of specific embodiments of the present invention have been presented for purposes of illustration. They are not intended to be exhaustive or to limit the invention to the precise forms described. Numerous modifications and variations will be apparent to those skilled in the art in light of the above description.

[0110] REFERENCE SIGNS LIST 10, 110 Indicator lamp 12 Lamp body 14 Light-transmitting cover (light-transmitting plate) 14b Rear surface 14c Peripheral flange portion 20 Light source 20a Light-emitting surface 22 Substrate 30 Optical member 30a Front surface 30b Rear surface 30c Peripheral flange portion 32 Incident portion 32a Rear end surface 34 First reflecting surface 36A, 36B Second reflecting surface 36As, 36Bs Reflecting element 40, 140, 240, 340 Light-transmitting control member 42, 142, 342 Film 44, 144, 244, 344 First light-shielding film 44a, 144a, 244a, 344a First through-hole 44A, 44B, 144A, 144B Light-emitting corresponding portion 44C, 144C Peripheral portion 46, 146, 246, 346 Second light shielding film 46a, 146a, 246a, 346a Second through hole 248, 348 Transparent plate Ax Virtual axis Z Partial area ZA Central area ZB Peripheral area

Claims

1. An indicator lamp configured to illuminate a partial area of ​​a light-transmitting control member by irradiating light emitted from a light source toward the front of the lamp through the light-transmitting control member, wherein the light-transmitting control member comprises a light-transmitting plate and a light-shielding film formed on the surface of the light-transmitting plate, the light-shielding film is configured such that a first light-shielding film located on the front side of the lamp and a second light-shielding film located on the rear side of the lamp are arranged in an overlapping state when viewed from the front of the lamp, the first light-shielding film is configured to have a plurality of first through-holes formed in areas corresponding to the partial area, and the second light-shielding film is configured as a light-shielding film with a lower brightness than the first light-shielding film, and second through-holes are formed in areas corresponding to each of the plurality of first through-holes.

2. The indicator lamp according to claim 1, wherein the first light-shielding film is divided into a plurality of areas having different color tones in a portion corresponding to the partial area.

3. The indicator lamp according to claim 1 or 2, wherein the second light-shielding film is configured as a black light-shielding film.

4. An indicator lamp according to claim 1 or 2, wherein each of said plurality of second through holes is formed with an opening diameter smaller than each of said plurality of first through holes.

5. An indicator lamp according to claim 1 or 2, characterized in that the light-transmitting control member is configured such that a film on which the first and second light-blocking films are printed is laminated on the surface of the light-transmitting plate.

6. The indicator lamp according to claim 5, wherein the light transmission control member is configured as a film insert molding.

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