JP4721445B2 - Vehicle lighting - Google Patents

Description

The present invention is directed to a light distribution control lens for controlling light distribution from a light source and irradiating it within a daytime running lamp light distribution standard range, and to emit light when light from the light source is transmitted. In particular, it is possible to increase the degree of freedom in designing the lens cut portion while satisfying the daytime running lamp light distribution standard. The present invention relates to a vehicular lamp.

  Conventionally, a vehicular lamp including a reflector for reflecting light emitted from a light source and a light distribution control lens for controlling the light emitted from the light source to emit light within a light distribution standard range. It has been known. As an example of this kind of vehicle lamp, there exists what was described in Unexamined-Japanese-Patent No. 2002-251904, for example.

  In the vehicular lamp described in Japanese Patent Laid-Open No. 2002-251904, when both the reflected light from the reflector and the direct light from the light source bulb are transmitted through the light transmitting portion of the light distribution control lens, Light distribution is controlled by the formed prism elements, and the light subjected to the light distribution control is irradiated within the light distribution standard range.

  That is, in the vehicular lamp described in Japanese Patent Laid-Open No. 2002-251904, the light from the light source bulb that is irradiated in the irradiation direction of the vehicular lamp through the reflector and then through the light distribution control lens is a light distribution standard. The light from the light source bulb that is irradiated in the irradiation direction of the vehicular lamp through the light distribution control lens is irradiated within the light distribution standard range without being transmitted through the reflector.

  As a result, in the vehicular lamp described in Japanese Patent Laid-Open No. 2002-251904, the light from the light source bulb irradiated in the irradiation direction of the vehicular lamp through the reflector and the vehicular lamp without passing through the reflector The light distribution standard is satisfied by both the light from the light source bulb irradiated in the irradiation direction.

JP 2002-251904 A

  By the way, Japanese Patent Application Laid-Open No. 2002-251904 does not describe the point that the light distribution standard is satisfied only by the light from the light source bulb that is irradiated in the irradiation direction of the vehicular lamp without passing through the reflector. That is, in the vehicle lamp described in Japanese Patent Application Laid-Open No. 2002-251904, the light distribution standard can be satisfied unless the light from the light source bulb irradiated in the irradiation direction of the vehicle lamp through the reflector is used. It is considered impossible.

  For this reason, in the vehicular lamp described in Japanese Patent Laid-Open No. 2002-251904, for example, if the shape of the reflecting surface of the reflector is changed in accordance with customer needs, the light distribution standard may not be satisfied. is there.

  In other words, for example, the vehicle lamp described in JP-A-2002-251904, the light from the light source irradiated in the irradiation direction of the vehicle lamp through the reflector, and the vehicle without passing through the reflector When the light distribution standard is satisfied by both of the light from the light source irradiated in the irradiation direction of the lamp, the degree of freedom in designing the shape of the reflecting surface of the reflector becomes low.

The present invention provides both light from a light source irradiated in the irradiation direction of the vehicle lamp via the lens cut portion and light from the light source irradiated in the irradiation direction of the vehicle lamp without passing through the lens cut portion. Therefore, it is an object of the present invention to provide a vehicular lamp that can increase the degree of freedom in designing the lens cut portion as compared with the case where the daytime running lamp light distribution standard is satisfied.

  In other words, an object of the present invention is to provide a vehicular lamp that can increase the degree of freedom in designing the lens cut portion while satisfying the daytime running lamp light distribution standard.

According to the invention described in claim 1, a vehicle, comprising a light source and a light distribution control lens for illuminating the inside of the daytime running lamp light distribution standard range by controlling the light distribution of the light irradiated from the light source In the lighting equipment,
Provide a lens with a lens cut portion having a lens cut portion that is visible from the irradiation direction of the vehicular lamp, so that the light from the light source is transmitted when transmitted.
Light emitted from the light source at a large angle with the main optical axis of the light source is irradiated in the irradiation direction of the vehicular lamp through the lens cut portion , and from the light source at a small angle with the main optical axis of the light source. as the irradiation light is irradiated to the irradiation direction of the vehicle lamp without passing through the lens cut portions, placing the lens cut portion,
The light distribution control so as to satisfy the daytime running lamp light distribution standard only by the light from the light source irradiated in the irradiation direction of the vehicle lamp through the light distribution control lens without passing through the lens cut portion. There is provided a vehicular lamp characterized by forming a lens.

According to the second aspect of the present invention, the light emitted from the light source at an angle of about 70 ° or more with the main optical axis of the light source is irradiated in the irradiation direction of the vehicular lamp through the lens cut portion. A vehicular lamp according to claim 1 is provided.

According to the invention described in claim 3, so as to satisfy the daytime running lamp light emission area standards only by light from the light source to be irradiated through the lens cut portions in the irradiation direction of the vehicle lamp, wherein the lens The vehicular lamp according to claim 1, wherein a cut portion is formed.

In the vehicular lamp according to claim 1 and 2 , a lens with a lens cut portion having a lens cut portion that is visible from the irradiation direction of the vehicular lamp is provided so as to emit light when light from the light source is transmitted. Yes.

Further, in the vehicle lamp according to claim 1 and 2, is irradiated to the irradiation direction of the vehicle lamp light emitted from the light source at an angle greater the main optical axis of the light source through the lens cut portion, the light source The lens cut portion is arranged such that light emitted from the light source at a small angle with respect to the main optical axis is irradiated in the irradiation direction of the vehicular lamp without passing through the lens cut portion.

Furthermore, in the vehicular lamp according to claims 1 and 2 , the daytime running lamp is distributed only by the light from the light source irradiated in the irradiation direction of the vehicular lamp through the light distribution control lens without passing through the lens cut portion. A light distribution control lens is formed so as to satisfy the optical standard.

Preferably, in the vehicular lamp according to claim 1 and 2 , the light emitted from the light source at an angle of about 70 ° or more with the main optical axis of the light source passes through the lens cut portion and the irradiation direction of the vehicular lamp. Is irradiated.

Therefore, according to the vehicular lamp according to claim 1 and 2 , the light from the light source irradiated in the irradiation direction of the vehicular lamp through the lens cut portion and the vehicular lamp without passing through the lens cut portion The degree of freedom in designing the lens cut portion can be increased as compared with the case where the daytime running lamp light distribution standard is satisfied by both the light from the light source irradiated in the irradiation direction.

In other words, according to the vehicular lamp of the first and second aspects, the degree of freedom in designing the lens cut portion can be increased while satisfying the daytime running lamp light distribution standard.

In the vehicle lamp according to claim 3 , the lens cut portion is configured so that the daytime running lamp emission area standard is satisfied only by light from a light source irradiated in the irradiation direction of the vehicle lamp via the lens cut portion. Is formed.

In other words, in the vehicular lamp according to claim 3 , the daytime running lamp emission area standard is satisfied only by the light emitted from the light source at a large angle with the main optical axis of the light source, and the main light source of the light source is satisfied. The daytime running lamp light distribution standard is satisfied only by light emitted from the light source at a small angle with the optical axis.

Therefore, according to the vehicular lamp of claim 3 , the light emitted from the light source at a large angle with the main optical axis of the light source and the light emitted from the light source at a small angle with the main optical axis of the light source. Both the light and the light satisfy the daytime running lamp emission area standard, the light emitted from the light source at a large angle with the main optical axis of the light source, and the small angle with the main optical axis of the light source. Compared to the case where the daytime running lamp light distribution standard is satisfied by both the light emitted from the light source, the vehicle lamp for satisfying the daytime running lamp light emitting area standard or the daytime running lamp light distribution standard is used. Design can be made easy.

Hereinafter, a description will be given to the vehicle lamp of the invention relating to the present invention. FIG. 1 is an exploded perspective view of a vehicular lamp according to the invention related to the present invention . Specifically, FIG. 1A is a diagram showing a state in which all the main parts of the vehicle lamp of the invention related to the present invention are disassembled, and FIG. 1B is a vehicle lamp of the invention related to the present invention. It is the figure which showed the state which assembled some of main components.

  In FIG. 1, 1 denotes a light source such as an LED, 1 'denotes a main optical axis of the light source 1, and 2 denotes a daytime running lamp by controlling light distribution from the light source 1. The light distribution control lens for irradiating in the light distribution standard range is shown. Reference numeral 3 denotes a reflector for reflecting light emitted from the light source 1 at a large angle with the main optical axis 1 ′ of the light source 1 in the irradiation direction of the vehicle lamp (right front side in FIG. 1). Reference numeral 4 denotes a flexible substrate for mounting the light source 1, and reference numeral 5 denotes a heat sink for radiating the heat generated by the light source 1.

In the vehicle lamp of the invention related to the present invention , as shown in FIGS. 1 (A) and 1 (B), the flexible substrate 4 on which the light source 1 is mounted and the light distribution control lens 2 are assembled to the heat sink 5. The assembly 10 is formed.

FIG. 2 is a component diagram of the assembly 10 shown in FIG. Specifically, FIG. 2A is a front view of the assembly 10, and FIG. 2B is a cross-sectional view taken along line AA of FIG. FIG. 3 is an optical path diagram of light emitted from the assembly 10. In the vehicular lamp according to the invention related to the present invention , as shown in FIGS. 2 and 3, the light emitted from the light source 1 at a small angle of, for example, less than about 70 ° with the main optical axis 1 ′ of the light source 1 is used. A main lens unit 2a for transmitting light by controlling light distribution, and an auxiliary lens unit for transmitting light emitted from the light source 1 at a large angle of about 70 ° or more with the main optical axis 1 ′ of the light source 1, for example. 2b is provided in the light distribution control lens 2.

  FIG. 4 is a view showing a light distribution pattern and the like formed by the assembly 10. Specifically, FIG. 4A shows a daytime running lamp light distribution standard range, and FIG. 4B shows a light distribution formed by light transmitted through the main lens portion 2a of the light distribution control lens 2. FIG. FIG. 4C is a view showing a light pattern, and FIG. 4C is a view showing a light distribution pattern formed by light transmitted through the auxiliary lens portion 2 b of the light distribution control lens 2.

  In the daytime running lamp light distribution standard, as shown in FIG. 4A, a rectangular daytime running lamp distribution defined by a 10 ° U line, a 20 ° L line, a 5 ° D line, and a 20 ° R line is used. It is required that the luminous intensity within the optical standard range (hatched area in FIG. 4A) be equal to or greater than a predetermined value.

Therefore, in the vehicular lamp according to the invention related to the present invention , as shown in FIGS. 4 (A) and 4 (B), the daytime running lamp light distribution standard range (hatched area in FIG. 4 (A)) is exceeded. The luminous intensity in the rectangular area (hatched area in FIG. 4B) defined by the slightly wider 20 ° U line, 30 ° L line, 20 ° D line, and 30 ° R line is the daytime running lamp light distribution. The light source 1 is selected and the main lens portion 2a of the light distribution control lens 2 is formed so as to be equal to or greater than the value required by the standard.

Specifically, in the vehicular lamp according to the invention related to the present invention , as shown in FIG. 3, the light emitted from the light source 1 at a small angle of, for example, less than about 70 ° with the main optical axis 1 ′ of the light source 1. The light distribution is controlled by the main lens portion 2a of the light distribution control lens 2, and is irradiated into the hatched area shown in FIG. That is, most of the light whose light distribution is controlled by the main lens portion 2a of the light distribution control lens 2 is irradiated within the daytime running lamp light distribution standard range (hatched area in FIG. 4A).

Furthermore, in the vehicular lamp according to the invention related to the present invention , the light source 1 is selected so that the daytime running lamp light distribution standard can be satisfied only by the light emitted from the main lens portion 2a of the light distribution control lens 2. Thus, the main lens portion 2a of the light distribution control lens 2 is formed.

Further, in the vehicular lamp of the invention related to the present invention , as shown in FIG. 3, the light irradiated from the light source 1 at a large angle of, for example, about 70 ° or more with the main optical axis 1 ′ of the light source 1, The light is transmitted through the auxiliary lens portion 2b of the light distribution control lens 2. When the light transmitted through the auxiliary lens portion 2b of the light distribution control lens 2 is irradiated as it is in the irradiation direction of the vehicle lamp (upper side in FIG. 3) as shown in FIG. Irradiation is performed in the annular hatching area shown in FIG.

Therefore, in the vehicular lamp of the invention related to the present invention, in order to satisfy the daytime running lamp emission area standard by the light transmitted through the auxiliary lens portion 2b of the light distribution control lens 2, FIG. As shown in FIG. 6, a reflector 3 is provided.

FIG. 5 is a view showing a vehicular lamp according to the invention related to the present invention . Specifically, FIG. 5 is a view showing the reflector 10 assembled to the assembly 10 shown in FIG. More specifically, FIG. 5 (A) is a front view of the vehicular lamp according to the invention related to the present invention, and FIG. 5 (B) is a cross-sectional view taken along line BB of FIG. 5 (A). FIG. 6 is an optical path diagram of light emitted from the vehicular lamp according to the invention related to the present invention . Specifically, FIG. 6 is an optical path diagram of light emitted from the assembly 10 shown in FIG. 2 in which the reflector 3 is assembled. In the vehicle lamp of the invention related to the present invention , as shown in FIGS. 1, 5 and 6, the reflector 3 is formed in an annular shape, and the main optical axis line of the reflector 3 and the main optical axis line 1 ′ of the light source 1 are connected. The reflector 3 is arranged so as to be substantially coincident. Further, the reflector 3 reflects light (see FIG. 3) transmitted through the auxiliary lens portion 2b of the light distribution control lens 2 in the irradiation direction of the vehicle lamp (upper side in FIG. 5B and FIG. 6). A reflecting surface 3a is formed.

Specifically, in the vehicular lamp according to the invention related to the present invention , as shown in FIG. 6, the light source 1 is irradiated from the light source 1 at a large angle of about 70 ° or more with the main optical axis 1 ′ of the light source 1. The light L2 transmitted through the auxiliary lens portion 2b of the light control lens 2 is reflected by the reflecting surface 3a of the reflector 3, and is irradiated in the irradiation direction of the vehicle lamp (upper side in FIG. 6). On the other hand, the light L1 irradiated from the light source 1 at a small angle of, for example, less than about 70 ° with the main optical axis 1 ′ of the light source 1 and transmitted through the main lens portion 2a of the light distribution control lens 2 passes through the reflector 3. The light is irradiated in the irradiation direction of the vehicular lamp (upper side in FIG. 6) without intervention.

Furthermore, in the vehicular lamp according to the invention related to the present invention , as shown in FIGS. 4A, 4B, and 6, the main lens portion 2a of the light distribution control lens 2 is provided without passing through the reflector 3. The daytime running lamp light distribution standard is satisfied only by the light L1 from the light source 1 irradiated in the irradiation direction of the vehicle lamp (upper side in FIG. 6). That is, in the vehicular lamp according to the invention related to the present invention, the light source 1 irradiated from the auxiliary lens portion 2b of the light distribution control lens 2 and the reflector 3 in the irradiation direction of the vehicular lamp (upper side in FIG. 6). Even without using the light L2, the daytime running lamp light distribution standard is satisfied.

Therefore, according to the vehicle lamp of the invention related to the present invention, the light L2 from the light source 1 irradiated in the irradiation direction of the vehicle lamp (upper side in FIG. 6) via the reflector 3 and the reflector 3 are used. The shape of the reflecting surface 3a of the reflector 3 is more than the case where the daytime running lamp light distribution standard is satisfied by both the light L1 from the light source 1 irradiated in the irradiation direction of the vehicular lamp (upper side in FIG. 6). The degree of design freedom can be increased.

In other words, according to the vehicular lamp of the invention related to the present invention, the degree of freedom in designing the shape of the reflecting surface 3a of the reflector 3 can be increased while satisfying the daytime running lamp light distribution standard. .

In the vehicular lamp of the invention related to the present invention, as shown in FIG. 6, the reflected light L2 from the reflecting surface 3a of the reflector 3 is diffused light that forms an angle with the main optical axis 1 ′ of the light source 1 as a vehicular lamp. In other vehicle lamps, instead, the reflected light L2 from the reflecting surface 3a of the reflector 3 is light that is parallel to the main optical axis 1 ′ of the light source 1. It is also possible to irradiate in the irradiation direction (upper side in FIG. 6) of the vehicle lamp.

Moreover, in the vehicle lamp of the invention related to the present invention , as shown in FIG. 6, the light source 1 irradiated from the light source 1 irradiated in the irradiation direction of the vehicle lamp (upper side in FIG. 6) via the reflecting surface 3 a of the reflector 3. The reflecting surface 3a of the reflector 3 is formed so as to satisfy the daytime running lamp emission area standard only by the light L2.

That is, in the vehicle lamp of the invention related to the present invention , the daytime running lamp emission area standard is satisfied by the area of the reflecting surface 3a of the reflector 3 in FIG. In other words, even if the area of the light distribution control lens 2 in FIG. 5A is not included, the daytime running lamp emission area standard is satisfied.

In other words, in the vehicular lamp according to the invention related to the present invention , as shown in FIG. 6, the daylight is generated only by the light L2 emitted from the light source 1 at a large angle with the main optical axis 1 ′ of the light source 1. The running lamp light emission area standard is satisfied, and the daytime running lamp light distribution standard is satisfied only by the light L1 emitted from the light source 1 at a small angle with the main optical axis 1 ′ of the light source 1.

Therefore, according to the vehicular lamp of the invention related to the present invention, the light L2 emitted from the light source 1 at a large angle with the main optical axis 1 ′ of the light source 1, and the main optical axis 1 ′ of the light source 1 Both the light L1 emitted from the light source 1 at a small angle satisfies the daytime running lamp emission area standard, or is emitted from the light source 1 at a large angle with the main optical axis 1 ′ of the light source 1. Daytime running than when the daytime running lamp light distribution standard is satisfied by both the light L2 and the light L1 emitted from the light source 1 at a small angle with the main optical axis 1 ′ of the light source 1. It is possible to easily design a vehicular lamp to satisfy the lamp emission area standard or the daytime running lamp light distribution standard.

In the vehicle lamp of the invention related to the present invention , the daytime running lamp emission area standard is satisfied even if the area of the light distribution control lens 2 in FIG. 5 (A) is not included. In another vehicle lamp, instead, the area of the reflecting surface 3a of the reflector 3 in FIG. 5A and the irradiation direction of the vehicle lamp in the light distribution control lens 2 in FIG. By adding the area of the portion that appears to emit light from (the front side of FIG. 5A), the light distribution control lens 2 and the reflector 3 of the reflector 3 can be satisfied so that the daytime running lamp emission area standard can be satisfied. It is also possible to form the reflective surface 3a.

In the vehicular lamp of the invention related to the present invention , as shown in FIG. 2B, the cross-sectional shape of the auxiliary lens portion 2b of the light distribution control lens 2 is formed in a convex shape, and is transmitted through the auxiliary lens portion 2b. The light to be damped is slightly refracted by the auxiliary lens unit 2b. However, in other vehicle lamps, the auxiliary lens unit 2b is made to pass through the auxiliary lens unit 2b instead. It is also possible to form 2b.

Furthermore, in the vehicular lamp according to the invention related to the present invention , as shown in FIG. 5B, a space is disposed between the light source 1 and the light distribution control lens 2, but in other vehicular lamps, Alternatively, the space between the light source 1 and the light distribution control lens 2 shown in FIG. 5B is sealed with the same material as the material constituting the light distribution control lens 2 or another transparent material. Is also possible.

Hereinafter, a description will be given to the vehicle lamp of another invention relating to the present invention. The vehicular lamp of another invention related to the present invention is configured in substantially the same manner as the vehicular lamp of the invention related to the present invention described above, except for the points described below. Therefore, according to the vehicular lamp of another invention related to the present invention, the same effects as the vehicular lamp of the invention related to the present invention described above can be obtained except for the points described below.

FIG. 7 is a view showing a vehicular lamp according to another invention related to the present invention . Specifically, FIG. 7 (A) is an exploded perspective view similar to FIG. 1 (B) of a vehicle lamp of another invention related to the present invention, and FIG. 7 (B) is another invention related to the present invention . It is a front view similar to FIG. 5 (A) of a vehicle lamp.

In the vehicular lamp according to the invention related to the present invention, as shown in FIG. 5A, the outer shape of the reflector 3 viewed from the irradiation direction of the vehicular lamp (the front side of FIG. 5A) is circular. However, in the vehicle lamp of another invention related to the present invention, as shown in FIG. 7B, the reflector 13 viewed from the irradiation direction of the vehicle lamp (the front side of FIG. 7B) is shown. The outer shape is substantially parallelogram. In the vehicular lamp according to another invention related to the present invention, the auxiliary lens portion of the light distribution control lens 2 is irradiated from the light source 1 at a large angle of, for example, about 70 ° or more with the main optical axis 1 ′ of the light source 1. The light L2 transmitted through 2b (see FIG. 6) is reflected by the reflecting surface 13a of the reflector 13, and the irradiation direction of the vehicular lamp (right front side in FIG. 7A, front side in FIG. 7B) Is irradiated.

Further, in the vehicular lamp of another invention related to the present invention , as shown in FIG. 7, the light transmitted through the auxiliary lens portion 2 b of the light distribution control lens 2 and reflected by the reflecting surface 13 a of the reflector 13. Only L2 (see FIG. 6) satisfies the daytime running lamp emission area standard.

Hereinafter, further description about the vehicle lamp of another invention relating to the present invention. The vehicular lamp of another invention related to the present invention is configured in substantially the same manner as the vehicular lamp of the invention related to the present invention described above, except for the points described below. Therefore, according to the vehicular lamp of another invention related to the present invention, the same effects as the vehicular lamp of the invention related to the present invention described above can be obtained except for the points described below.

FIG. 8 is a view showing a vehicular lamp according to still another invention related to the present invention . Specifically, FIG. 8 (A) is an exploded perspective view similar to FIG. 1 (B) of a vehicular lamp of still another invention related to the present invention, and FIG. 8 (B) is still another related to the present invention. It is a front view similar to FIG. 5 (A) of the vehicle lamp of the invention .

In the vehicular lamp according to the invention related to the present invention, as shown in FIG. 5A, the outer shape of the reflector 3 viewed from the irradiation direction of the vehicular lamp (the front side of FIG. 5A) is circular. However, in the vehicular lamp according to still another invention related to the present invention , as shown in FIG. 8 (B), the reflector 23 as viewed from the irradiation direction of the vehicular lamp (the front side of FIG. 8 (B)). The outer shape of is substantially trapezoidal. In the vehicular lamp according to still another invention related to the present invention , the light source 1 is irradiated with a large angle of, for example, about 70 ° or more with the main optical axis 1 ′ of the light source 1, and the auxiliary lens of the light distribution control lens 2. The light L2 (see FIG. 6) transmitted through the portion 2b is reflected by the reflecting surface 23a of the reflector 23, and the irradiation direction of the vehicle lamp (right front side in FIG. 8A, front side in FIG. 8B) ).

Further, in the vehicular lamp according to still another invention related to the present invention , as shown in FIG. 8, the auxiliary lens portion 2 b of the light distribution control lens 2 is transmitted and reflected by the reflecting surface 23 a of the reflector 23. Only the light L2 (see FIG. 6) satisfies the daytime running lamp emission area standard.

The following describes the first embodiment of the vehicle lamp of the present invention. 9 and 10 are diagrams showing the vehicular lamp according to the first embodiment. In particular, FIG. 9 (A) Fig. 1 (B) a similar exploded perspective view of a vehicular lamp of the first embodiment, and FIG. 9 (B) is a front view of a vehicular lamp of the first embodiment 10A is a cross-sectional view taken along the line CC in FIG. 9B, and FIG. 10B is an optical path diagram of the vehicular lamp according to the first embodiment.

9 and 10, reference numeral 36 denotes a lens with a lens cut portion, and 36a denotes a threading portion through which transmitted light is allowed to pass. Reference numeral 36b denotes a lens cut portion in which transmitted light is diffused and appears to emit light from the irradiation direction of the vehicular lamp. The vehicle lamp assembly 10 of the first embodiment is configured in the same manner as the vehicle lamp assembly 10 (see FIGS. 2 and 3) of the invention related to the present invention . The light distribution pattern formed by the vehicle lamp assembly 10 of the first embodiment is the light distribution pattern formed by the vehicle lamp assembly 10 of the invention related to the present invention (FIG. 4B). ) And FIG. 4 (C)).

In the vehicular lamp of the first embodiment, as shown in FIGS. 10A and 10B, daytime running is performed only by the light L1 ′ irradiated from the main lens portion 2a of the light distribution control lens 2. The light source 1 is selected so that the lamp light distribution standard is satisfied, and the main lens portion 2a of the light distribution control lens 2 is formed.

Furthermore, in the vehicular lamp according to the first embodiment, as shown in FIGS. 10A and 10B, the daylight is transmitted by the light L2 ′ transmitted through the auxiliary lens portion 2b of the light distribution control lens 2. In order to satisfy the running lamp emission area standard, a lens cut portion 36b is provided.

Specifically, in the vehicular lamp according to the first embodiment, as shown in FIG. 10B, the light source 1 emits light from the main optical axis 1 ′ of the light source 1 at a large angle of, for example, about 70 ° or more. The light L2 ′ transmitted through the auxiliary lens portion 2b of the light distribution control lens 2 is transmitted through the lens cut portion 36b and irradiated in the irradiation direction of the vehicle lamp (upper side in FIG. 10B). On the other hand, the light L1 ′ irradiated from the light source 1 at a small angle of, for example, less than about 70 ° with the main optical axis 1 ′ of the light source 1 and transmitted through the main lens portion 2a of the light distribution control lens 2 is a lens cut. Without passing through the part 36b, it passes through the transparent part 36a and is irradiated in the irradiation direction of the vehicular lamp (upper side in FIG. 10B).

Furthermore, in the vehicular lamp of the first embodiment, as shown in FIGS. 4A, 4B, and 10B, the light distribution control lens 2 can be used without the lens cut portion 36b. The daytime running lamp light distribution standard is satisfied only by the light L1 ′ from the light source 1 irradiated in the irradiation direction of the vehicle lamp (upper side in FIG. 10B) via the main lens portion 2a and the through portion 36a. It has been. That is, in the vehicular lamp of the first embodiment, the light is irradiated in the irradiation direction of the vehicular lamp (upper side in FIG. 10B) via the auxiliary lens portion 2b and the lens cut portion 36b of the light distribution control lens 2. Even if the light L2 ′ from the light source 1 is not used, the daytime running lamp light distribution standard is satisfied.

Therefore, according to the vehicular lamp of the first embodiment, the light L2 ′ from the light source 1 irradiated in the irradiation direction of the vehicular lamp (upper side in FIG. 10B) via the lens cut portion 36b, and When the daytime running lamp light distribution standard is satisfied by both the light L1 ′ from the light source 1 irradiated in the irradiation direction of the vehicle lamp (upper side in FIG. 10B) without passing through the lens cut portion 36b As a result, the degree of freedom in designing the shape of the lens cut portion 36b can be increased.

In other words, according to the vehicular lamp of the first embodiment, the degree of freedom in designing the shape of the lens cut portion 36b of the lens with lens cut portion 36 is increased while satisfying the daytime running lamp light distribution standard. Can be made.

In the vehicular lamp of the first embodiment, as shown in FIG. 10B, the irradiation direction of the vehicular lamp (in FIG. 10B) via the lens cut portion 36b of the lens 36 with a lens cut portion. The lens cut portion 36b of the lens with lens cut portion 36 is formed so as to satisfy the daytime running lamp emission area standard only by the light L2 ′ from the light source 1 irradiated on the upper side.

That is, in the vehicular lamp of the first embodiment, the daytime running lamp emission area standard is satisfied by the area of the lens cut portion 36b in FIG. 9B. In other words, the daytime running lamp emission area standard is satisfied even if the area of the through portion 36a in FIG. 9B is not included.

In other words, in the vehicular lamp of the first embodiment, as shown in FIG. 10B, only the light L2 ′ emitted from the light source 1 at a large angle with the main optical axis 1 ′ of the light source 1 is used. The daytime running lamp luminous area standard is satisfied, and the daytime running lamp light distribution standard is satisfied only by the light L1 ′ emitted from the light source 1 at a small angle with the main optical axis 1 ′ of the light source 1. ing.

Therefore, according to the vehicular lamp of the first embodiment, the light L2 ′ emitted from the light source 1 at a large angle with the main optical axis 1 ′ of the light source 1, and the main optical axis 1 ′ of the light source 1 When both the light L1 ′ emitted from the light source 1 at a small angle satisfies the daytime running lamp emission area standard, or the light L1 ′ is emitted from the light source 1 at a large angle with the main optical axis 1 ′ of the light source 1. Than the case where the daytime running lamp light distribution standard is satisfied by both the light L2 ′ and the light L1 ′ irradiated from the light source 1 at a small angle with the main optical axis 1 ′ of the light source 1, It is possible to easily design a vehicular lamp to satisfy the daytime running lamp light emitting area standard or the daytime running lamp light distribution standard.

The vehicle lamp of the first embodiment, even without contains the area of the portion of the plain portion 36a in FIG. 9 (B), the although daytime running lamp emitting area standards are allowed satisfied, the second In the vehicular lamp according to the embodiment, instead of the area of the lens cut portion 36b in FIG. 9B and the through-hole 36a in FIG. 9B, the irradiation direction of the vehicular lamp (FIG. 9). The light distribution control lens 2 and the lens cut portion 36b are formed so as to satisfy the daytime running lamp emission area standard by adding the area of the portion that appears to emit light from the front side of (B). It is also possible to do.

Further, in the vehicular lamp of the first embodiment, as shown in FIGS. 9A and 10A, the lens 36 with a lens cut portion is used as an outer lens, but the third embodiment. In the vehicular lamp, instead, the lens 36 with a lens cut portion is used as an inner lens, and an outer lens can be provided separately from the lens 36 with a lens cut portion.

In the fourth embodiment, the first to third embodiments described above can be appropriately combined.

It is a disassembled perspective view of the vehicle lamp of the invention relevant to this invention . FIG. 2 is a component diagram of the assembly 10 shown in FIG. 3 is an optical path diagram of light emitted from the assembly 10. FIG. FIG. 4 is a diagram showing a light distribution pattern and the like formed by the assembly 10. It is the figure which showed the vehicle lamp of the invention relevant to this invention . It is an optical path diagram of the light irradiated from the vehicle lamp of the invention related to the present invention . It is the figure which showed the vehicle lamp of other invention related to this invention . It is the figure which showed the vehicle lamp of other invention related to this invention . It is the figure which showed the vehicle lamp of 1st Embodiment. It is the figure which showed the vehicle lamp of 1st Embodiment. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Light source 2 Light distribution control lens 2a Main lens part 2b Auxiliary lens part 3 Reflector 3a Reflecting surface 4 Flexible board 5 Heat sink 10 Assembly

Claims (3)

Light source and, in the vehicle lamp having a light distribution control lens for illuminating the irradiation light the light distribution control to the daytime running lamp light distribution standard range from said light source,
Provide a lens with a lens cut portion having a lens cut portion that is visible from the irradiation direction of the vehicular lamp, so that the light from the light source is transmitted when transmitted.
Light emitted from the light source at a large angle with the main optical axis of the light source is irradiated in the irradiation direction of the vehicular lamp through the lens cut portion , and from the light source at a small angle with the main optical axis of the light source. as the irradiation light is irradiated to the irradiation direction of the vehicle lamp without passing through the lens cut portions, placing the lens cut portion,
The light distribution control so as to satisfy the daytime running lamp light distribution standard only by the light from the light source irradiated in the irradiation direction of the vehicle lamp through the light distribution control lens without passing through the lens cut portion. A vehicular lamp characterized by forming a lens. The light emitted from the light source at an angle of about 70 ° or more with the main optical axis of the light source is emitted in the irradiation direction of the vehicular lamp through the lens cut portion. Vehicle lamps. To satisfy the daytime running lamp light emission area standards only by light from the light source to be irradiated in the irradiation direction of the vehicle lamp through the lens cut portion, wherein, characterized in that the formation of the lens cut portions Item 3. A vehicle lamp according to item 1 or 2.

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