JP4514052B2 - Vehicle lighting - Google Patents

Description

  The present invention relates to a vehicular lamp provided with a cylindrical lens for arranging a plurality of light emitting elements on a straight line extending in the left-right direction and condensing light emitted from the plurality of light emitting elements in a vertical direction. In particular, the present invention relates to a vehicular lamp that can brightly illuminate the front side of the vehicular lamp while reducing the horizontal dimension of the cylindrical lens.

  Specifically, the present invention relates to a vehicular lamp for irradiating arbitrary light such as infrared light and visible light on the front side of the vehicular lamp.

  Conventionally, a vehicular lamp having a plurality of light emitting elements arranged in a straight line and provided with a cylindrical lens is known. Examples of this type of vehicular lamp include those described in Japanese Patent Application Laid-Open Nos. 2004-311101 and 2004-342574, for example.

  Conventionally, a vehicular lamp including a cylindrical lens for converging light emitted from a light source to the front side in the vertical direction is known. An example of this type of vehicular lamp is described in, for example, Japanese Patent Laid-Open No. 2000-133017.

  For example, when a plurality of light emitting elements are arranged on a straight line extending in the left-right direction and the cylindrical lens is arranged in front of the plurality of light emitting elements so that the longitudinal direction of the cylindrical lens coincides with the left-right direction, the plurality of light emitting elements The light emitted from the front side to the front side can be condensed in the vertical direction by the cylindrical lens.

  However, as described above, when the cylindrical lens is disposed on the front side of the plurality of light emitting elements, the light diffused in the vertical direction among the light emitted from the plurality of light emitting elements to the front side can be collected by the cylindrical lens. However, among the light emitted from the plurality of light emitting elements to the front side, the light diffused in the left-right direction is not condensed by the cylindrical lens but is irradiated to the front side as it is diffused in the left-right direction.

  That is, if the cylindrical lens is simply disposed on the front side of the plurality of light emitting elements, the lateral width of the light distribution pattern becomes wide, and as a result, the front side of the vehicular lamp cannot be illuminated brightly. That is, a so-called spot-like light distribution pattern that is condensed cannot be formed. Also, in order to effectively use the light diffusing in the left-right direction among the light emitted from the plurality of light emitting elements to the front side, even if the size of the cylindrical lens is increased, the characteristics of the cylindrical lens It is impossible to form a so-called spot-like light distribution pattern. On the other hand, in order to form a condensed so-called spot-like light distribution pattern and to effectively use the light diffusing in the left-right direction among the light emitted from the plurality of light emitting elements to the front side, If a lens other than the lens is used, the lateral dimension of the vehicular lamp is increased.

JP 2004-311101 A JP 2004-342574 A Japanese Patent Laid-Open No. 2000-133017

  In view of the above problems, an object of the present invention is to provide a vehicular lamp that can brightly illuminate the front side of a vehicular lamp while reducing the horizontal dimension of the cylindrical lens.

  Specifically, an object of the present invention is to provide a vehicular lamp that can sufficiently illuminate the front side of the vehicular lamp with a light distribution pattern that spreads horizontally while reducing the horizontal dimension of the cylindrical lens. To do.

  According to the first aspect of the present invention, the plurality of light emitting elements are arranged on a straight line extending in the left-right direction, and the cylindrical light for condensing light emitted forward from the plurality of light emitting elements in the vertical direction. In the vehicular lamp provided with a lens, a vehicular lamp characterized in that a condensing lens having a condensing degree in a left-right direction larger than a condensing degree in a vertical direction is arranged between each light emitting element and the cylindrical lens. Provided.

  According to the second aspect of the present invention, the curvature of the cross-sectional shape of the convex surface on the light emitting element side of the condenser lens seen from the upper side or the lower side is the light emitting element of the condenser lens seen from the left side or the right side. The converging lens is larger than the curvature of the cross-sectional shape of the convex surface on the side, and the curvature of the cross-sectional shape of the convex surface on the cylindrical lens side of the condensing lens viewed from the upper side or the lower side is viewed from the left side or the right side The vehicular lamp according to claim 1, wherein the condensing lens is formed so as to be larger than a curvature of a cross-sectional shape of the convex surface on the cylindrical lens side.

  According to the invention described in claim 3, the cross-sectional shape of the convex surface on the light emitting element side of the condensing lens viewed from the upper side or the lower side is an arc or an elliptical arc, and the condensing is viewed from the upper side or the lower side. The cross-sectional shape of the convex surface on the cylindrical lens side of the lens is an arc or an elliptical arc, and the cross-sectional shape of the convex surface on the light emitting element side of the condenser lens viewed from the left or right side is an arc or an elliptical arc, and the left or right side 3. The vehicular lamp according to claim 1, wherein the condensing lens is formed so that a cross-sectional shape of a convex surface on the cylindrical lens side of the condensing lens viewed from above is a hyperbola. Is done.

  According to the invention described in claim 4, the curvature of the convex surface on the light emitting element side of the condenser lens is made smaller than the curvature of the convex surface on the cylindrical lens side of the condenser lens. The vehicle lamp as described in any one of 1-3 is provided.

  According to invention of Claim 5, the said light emitting element has been arrange | positioned in the condensing lens side rather than the focus by the said cylindrical lens and the said condensing lens, In any one of Claims 1-4 characterized by the above-mentioned. The described vehicle lamp is provided.

  According to a sixth aspect of the invention, the vehicle according to the fifth aspect is characterized in that the light emitting element is disposed on the side of the condenser lens about 0.5 mm from the focal point of the cylindrical lens and the condenser lens. A lighting fixture is provided.

  According to the seventh aspect of the present invention, there is provided the vehicular lamp according to any one of the first to sixth aspects, wherein the plurality of condensing lenses are formed by one member.

  In the vehicular lamp according to the first aspect, a condensing lens having a condensing degree in the left-right direction larger than a condensing degree in the vertical direction is disposed between each light emitting element and the cylindrical lens. In other words, in the vehicular lamp according to the first aspect, the light emitted forward from each light emitting element is larger in the left-right direction than in the vertical direction by the condensing lens disposed between each light emitting element and the cylindrical lens. It can be condensed.

  Therefore, according to the vehicular lamp of the first aspect, the emitted light from each light-emitting element is only a cylindrical lens without passing through a condenser lens in which the degree of light collection in the left-right direction is greater than the degree of light collection in the vertical direction. The width of the light distribution pattern can be made narrower than the case where the front side of the vehicular lamp is irradiated through the light source, thereby brightly illuminating the front side of the vehicular lamp. That is, a so-called spot-like light distribution pattern can be formed. Specifically, according to the vehicular lamp of the first aspect, the horizontal dimension of the cylindrical lens is larger than that in the case where no condensing lens is provided in which the degree of condensing in the left-right direction is greater than the degree of condensing in the vertical direction. The front side of the vehicular lamp can be brightly illuminated while reducing the size.

  That is, according to the vehicular lamp according to the first aspect, the front side of the vehicular lamp can be illuminated sufficiently brightly by the light distribution pattern spread horizontally while reducing the horizontal dimension of the cylindrical lens.

  In the vehicular lamp according to claim 2, the curvature of the cross-sectional shape of the convex surface on the light emitting element side of the condensing lens viewed from the upper side or the lower side is equal to that on the light emitting element side of the condensing lens viewed from the left side or the right side. The curvature of the cross-sectional shape of the convex surface on the cylindrical lens side of the condensing lens when viewed from above or below is larger than the curvature of the cross-sectional shape of the convex surface, and the cylindrical lens side of the condensing lens when viewed from the left or right side The condenser lens is formed so as to be larger than the curvature of the cross-sectional shape of the convex surface. Therefore, the light radiated to the front side from each light emitting element can be condensed more in the left-right direction than in the vertical direction by the condensing lens disposed between each light-emitting element and the cylindrical lens.

  In other words, according to the vehicular lamp of the second aspect, the radiated light from each light emitting element can be concentrated more in the left-right direction than in the up-down direction by the single condensing lens. In other words, it is possible to eliminate the necessity of disposing two types of lenses between each light emitting element and the cylindrical lens in order to condense emitted light from each light emitting element in the left-right direction larger than the vertical direction.

  In the vehicular lamp according to claim 3, the cross-sectional shape of the convex surface on the light emitting element side of the condensing lens viewed from the upper side or the lower side is an arc or an elliptical arc, and the condensing lens viewed from the upper side or the lower side is formed. The condensing lens is formed so that the cross-sectional shape of the convex surface on the cylindrical lens side is an arc or an elliptical arc. Therefore, the light-emitting element and the light-collecting element are more concentrated than the case where the cross-sectional shapes of the convex surface on the light-emitting element side and the convex surface on the cylindrical lens side of the condenser lens viewed from above or below are curves other than an arc or an elliptical arc. While shortening the distance to the optical lens and improving the utilization efficiency of the surface of the condenser lens and the utilization efficiency of the radiation light from the light emitting element on the surface of the condenser lens, It can be condensed in the direction.

  Furthermore, in the vehicular lamp according to claim 3, the cross-sectional shape of the convex surface on the light emitting element side of the condensing lens viewed from the left or right side is an arc or an elliptical arc, and the condensing lens viewed from the left or right side The condensing lens is formed so that the cross-sectional shape of the convex surface on the cylindrical lens side becomes a hyperbola. Therefore, the cross-sectional shape of the convex surface on the light emitting element side of the condensing lens viewed from the left or right side is a curve other than an arc or elliptical arc, and the convex surface on the cylindrical lens side of the condensing lens viewed from the left or right side Compared to the case where the cross-sectional shape is a curve other than a hyperbola, the distance between the light emitting element and the condenser lens is shortened, and the utilization efficiency of the surface of the condenser lens and the light emitting element on the surface of the condenser lens are reduced. The emitted light from the light emitting element can be condensed in the vertical direction while improving the utilization efficiency of the emitted light.

  In other words, according to the vehicular lamp according to the third aspect, the distribution method of the light distribution can be brought close to the intended distribution method of the light distribution. That is, it is possible to approach a so-called spot-like light distribution pattern that has been condensed.

  In the vehicular lamp according to the fourth aspect, the curvature of the convex surface on the light emitting element side of the condensing lens is made smaller than the curvature of the convex surface on the cylindrical lens side of the condensing lens. Therefore, the emitted light from the light-emitting element emits light from the light-collecting lens compared to the case where the curvature of the convex surface on the light-emitting element side of the condenser lens is larger than the curvature of the convex surface on the cylindrical lens side of the condenser lens. The ratio of being reflected by the convex surface on the element side can be reduced. That is, the utilization efficiency of the emitted light from the light emitting element is improved as compared with the case where the curvature of the convex surface on the light emitting element side of the condenser lens is larger than the curvature of the convex surface on the cylindrical lens side of the condenser lens. be able to.

  When the light emitting element is placed on the focal point of the cylindrical lens and the condensing lens, the refracted light that has passed through the condensing lens and the cylindrical lens is hardly diffused in the horizontal direction and the vertical direction. It becomes impossible to approximate the distribution of the light distribution. In addition, when the light emitting element is arranged on the focal point of the cylindrical lens and the condenser lens, the emitted light from the light emitting element is more than the case where the light emitting element is arranged closer to the condenser lens side than the focal point of the cylindrical lens and the condenser lens. The utilization efficiency of will decrease. That is, light emitted from the light emitting element at a relatively large angle with respect to the main optical axis of the light emitting element does not pass through the condenser lens.

  In view of this point, in the vehicular lamp according to the fifth aspect, the light emitting element is disposed closer to the condensing lens than the focal point of the cylindrical lens and the condensing lens. For this reason, the refracted light that has passed through the condenser lens and the cylindrical lens is reduced in the lateral direction of the refracted light that has passed through the condenser lens and the cylindrical lens, while the diffracted light that has passed through the condenser lens and the cylindrical lens is reduced in the left and right direction. Can be diffused in the direction and up and down direction. As a result, it is possible to bring the distribution method of light distribution closer to the intended distribution method of light distribution. Furthermore, the utilization efficiency of the radiated light from a light emitting element can be improved.

  In the vehicular lamp according to the sixth aspect, the light emitting element is disposed about 0.5 mm closer to the condensing lens than the focal point of the cylindrical lens and the condensing lens. Therefore, the refracted light that has passed through the condenser lens and the cylindrical lens can be diffused in the left-right direction at a diffusion angle that forms an angle of about 10 ° with respect to the front-rear direction of the vehicular lamp.

  In the vehicle lamp according to the seventh aspect, the plurality of condensing lenses are formed of one member. Therefore, the distance between two adjacent condenser lenses can be made shorter than when a plurality of condenser lenses are formed by separate members. Thereby, the left-right direction dimension of the whole vehicle lamp can be made smaller than the case where the several condensing lens is formed by the separate member.

  Hereinafter, a first embodiment of a vehicular lamp of the present invention will be described. FIG. 1 is a perspective view of a vehicular lamp according to the first embodiment as viewed from the front, left side, and upper side, FIG. 2 is a plan view of the vehicular lamp according to the first embodiment, and FIG. 3 is a vehicle according to the first embodiment. FIG. 4 is a right side view of the vehicular lamp according to the first embodiment. 5 is a cross-sectional view of the vehicular lamp according to the first embodiment shown in FIG. 3, taken along line AA, FIG. 6 is an enlarged view of the vehicular lamp according to the first embodiment shown in FIG. 5, and FIG. FIG. 8 is a cross-sectional view of the vehicular lamp of the first embodiment shown in FIG. 7 and FIG. 8 is an enlarged view of the vehicular lamp of the first embodiment shown in FIG.

  The vehicular lamp according to the first embodiment is disposed inside the front surface of the vehicle so as to face the front of the vehicle in order to irradiate the front of the vehicle with irradiation light. Therefore, the right side of the passenger facing the front of the vehicle corresponds to the left side of the vehicle lamp, the left side of the passenger corresponds to the right side of the vehicle lamp, and the front side of the passenger corresponds to the front side of the vehicle lamp. The rear side of the passenger corresponds to the rear side of the vehicle lamp. The vehicular lamp of the first embodiment is used as a night vision lamp that irradiates infrared light in front of the vehicle.

  1 to 8, 1A, 1B, 1C, 1D, 1E, 1F, 1G, 1H, 1I, 1J, 1K, 1L, and 1M are straight lines L extending in the left-right direction of the vehicle lamp (see FIG. 7). The LED as the light emitting element arranged above is shown. In the vehicular lamp according to the first embodiment, infrared light is emitted from the LEDs 1A, 1B, 1C, 1D, 1E, 1F, 1G, 1H, 1I, 1J, 1K, 1L, and 1M. In the vehicular lamp according to the embodiment, visible light can be emitted from the LEDs 1A, 1B, 1C, 1D, 1E, 1F, 1G, 1H, 1I, 1J, 1K, 1L, and 1M instead. That is, the vehicular lamp of the second embodiment is used as a normal lamp that radiates visible light in front of the vehicle.

Furthermore, in the vehicular lamp of the first embodiment, the same components as the LED 1A are used as the LEDs 1B, 1C, 1D, 1E, 1F, 1G, 1H, 1I, 1J, 1K, 1L, and 1M. In the vehicular lamp of the first embodiment, for example, 13 LEDs 1A, 1B, 1C, 1D, 1E, 1F, 1G, 1H, 1I, 1J, 1K, 1L, and 1M are provided. In the vehicular lamp according to the embodiment, any number of two or more LEDs may be provided instead.
Furthermore, in the modified example of the vehicular lamp of the first embodiment, as a plurality of light emitting elements used, for example, a light emitting element such as a white LED and an infrared light such as an infrared LED are used. It is also possible to use a combination with a light emitting device. The number of those that emit visible light and the number of those that emit infrared light can be appropriately set according to the application of the vehicle lamp or the performance required for the vehicle lamp. Thus, by using the visible light emitting element and the infrared light emitting element in combination, a vehicle lamp having both a function as a normal lamp and a function as a lamp for night vision can be obtained. Further, unnecessary (red) visible light that may be generated from the infrared light emitting element can be made inconspicuous by white visible light from the visible light emitting element. In addition, it goes without saying that the light emitting element used in the modification of the vehicular lamp of the first embodiment is not limited to the LED, and other light emitting elements can be used.

  1 to 8, reference numeral 2 denotes light emitted from the LEDs 1A, 1B, 1C, 1D, 1E, 1F, 1G, 1H, 1I, 1J, 1K, 1L, and 1M to the front side of the vehicle lamp. A cylindrical lens for condensing light in the vertical direction of the lamp is shown. 2A shows the lens portion of the cylindrical lens 2, and 2B shows the frame portion of the cylindrical lens 2. FIG.

  Furthermore, in FIGS. 1-8, 3A has shown the condensing lens part for condensing the radiated light from LED1A, and 3B has shown the condensing lens part for condensing the radiated light from LED1B. 3C shows a condensing lens part for condensing the radiated light from LED1C. 3D shows a condensing lens part for condensing the emitted light from the LED 1D, 3E shows a condensing lens part for condensing the emitted light from the LED 1E, and 3F shows the radiation from the LED 1F. The condensing lens part for condensing light is shown. 3G represents a condensing lens unit for condensing the radiated light from the LED 1G, 3H represents a condensing lens unit for condensing the radiated light from the LED 1H, and 3I represents radiation from the LED 1I. The condensing lens part for condensing light is shown. 3J represents a condensing lens part for condensing the radiated light from the LED 1J, 3K represents a condensing lens part for condensing the radiated light from the LED 1K, and 3L represents the radiation from the LED 1L. The condensing lens part for condensing light is shown, 3M has shown the condensing lens part for condensing the emitted light from LED1M. Reference numeral 3 denotes a condensing lens unit in which condensing lens portions 3A, 3B, 3C, 3D, 3E, 3F, 3G, 3H, 3I, 3J, 3K, 3L, and 3M are integrally formed.

  In the vehicular lamp of the first embodiment, the condensing lens portions 3A, 3B, 3C, 3D, 3E, 3F, 3G, 3H, 3I, 3J, 3K, 3L, and 3M are integrally formed by one member. However, in the vehicular lamp of the fourth embodiment, each of the condenser lens portions 3A, 3B, 3C, 3D, 3E, 3F, 3G, 3H, 3I, 3J, 3K, 3L, and 3M is separately provided. It is also possible to form it as a member.

  In the vehicle lamp of the first embodiment, the condensing lens portions 3B, 3C, 3D, 3E, 3F, 3G, 3H, 3I, 3J, 3K, 3L, and 3M are formed in the same shape as the condensing lens portion 3A. Has been.

  1 to 8, reference numeral 4 denotes a substrate for supporting the LEDs 1A, 1B, 1C, 1D, 1E, 1F, 1G, 1H, 1I, 1J, 1K, 1L, and 1M. Reference numeral 5 denotes a support member for supporting the cylindrical lens 2, the condenser lens unit 3, and the substrate 4. 5A shows the base part of the support member 5, and 5B shows the side wall part of the support member. In the vehicular lamp of the first embodiment, the base portion 5A and the side wall portion 5B are coupled by a coupling means (not shown) such as a screw, for example. In the vehicular lamp of the fifth embodiment, The base portion 5A and the side wall portion 5B can be formed by a single member.

  Furthermore, in the vehicular lamp of the first embodiment, the substrate 4 and the support member 5 are coupled by a coupling means (not shown) such as a screw, for example, but for the vehicle of the sixth embodiment. In the lamp, the substrate 4 and the support member 5 can be formed of a single member.

  In the vehicular lamp of the first embodiment, as shown in FIG. 7, the condensing lens portion 3 </ b> A is disposed between the LED 1 </ b> A and the cylindrical lens 2, and the condensing lens portion 3 </ b> B is disposed between the LED 1 </ b> B and the cylindrical lens 2. The condensing lens unit 3C is disposed between the LED 1C and the cylindrical lens 2, the condensing lens unit 3D is disposed between the LED 1D and the cylindrical lens 2, and the condensing lens unit 3E is disposed between the LED 1E and the cylindrical lens. 2 and the condensing lens portion 3F is disposed between the LED 1F and the cylindrical lens 2. Further, the condensing lens portion 3G is disposed between the LED 1G and the cylindrical lens 2, the condensing lens portion 3H is disposed between the LED 1H and the cylindrical lens 2, and the condensing lens portion 3I is disposed between the LED 1I and the cylindrical lens 2. Are arranged between the LED 1J and the cylindrical lens 2, the condenser lens unit 3K is arranged between the LED 1K and the cylindrical lens 2, and the condenser lens unit 3L is connected to the LED 1L. The condensing lens portion 3M is disposed between the LED 1M and the cylindrical lens 2 and is disposed between the cylindrical lens 2 and the condensing lens portion 3M.

  Furthermore, in the vehicular lamp according to the first embodiment, as shown in FIGS. 5 and 6, the emitted light from the LED 1G is firstly moved in the vertical direction of the vehicular lamp (FIG. 5 and FIG. 5) by the condenser lens unit 3G. The light is condensed in the vertical direction of FIG. 6 and then further condensed by the cylindrical lens 2 in the vertical direction of the vehicle lamp (the vertical direction of FIG. 5) to the front side (left side of FIG. 5) of the vehicle lamp. Irradiated.

  That is, in the vehicular lamp of the first embodiment, as shown in FIG. 5, the emitted light from the LED 1G is emitted in the vertical direction of the vehicular lamp (up and down in FIG. 5) by both the condenser lens portion 3G and the cylindrical lens 2. Direction). For this reason, in the vehicular lamp of the first embodiment, the light collection degree in the vertical direction (vertical direction in FIG. 5) of the condenser lens portion 3G is set to a relatively small value.

  Further, in the vehicular lamp of the first embodiment, as shown in FIGS. 7 and 8, the radiated light from the LED 1G is first caused by the condensing lens portion 3G to move in the left-right direction of the vehicular lamp (FIGS. 7 and 8). The light is condensed in the left-right direction in FIG. 8, and then is condensed in the left-right direction of the vehicle lamp (left-right direction in FIG. 7) by the cylindrical lens 2. ). Specifically, in the vehicular lamp according to the first embodiment, as shown in FIG. 8, the diffusion angle of the refracted light that has passed through the condenser lens portion 3G in the left-right direction (left-right direction in FIG. 8) is desirably about 20 The emitted light from the LED 1G is condensed in the left-right direction of the vehicle lamp (left-right direction in FIG. 8) by the condensing lens portion 3G so that the angle is 10 ° (left 10 ° to right 10 °).

  That is, in the vehicular lamp of the first embodiment, as shown in FIG. 7, the emitted light from the LED 1G is condensed in the left-right direction of the vehicular lamp (the left-right direction in FIG. 7) by the condensing lens portion 3G. However, the cylindrical lens 2 cannot collect light in the left-right direction of the vehicle lamp (left-right direction in FIG. 7). Therefore, in the vehicular lamp of the first embodiment, the degree of light collection in the left-right direction (left-right direction in FIG. 7) of the condensing lens unit 3G is set to a relatively large value.

  That is, in the vehicular lamp according to the first embodiment, as shown in FIGS. 6 and 8, the degree of light collection in the left-right direction (left-right direction in FIG. 8) of the condensing lens unit 3G is the same as that of the condensing lens unit 3G. It is larger than the light collection degree in the vertical direction (vertical direction in FIG. 6).

  Although not shown, similarly, in the vehicular lamp of the first embodiment, the emitted light from the LEDs 1A, 1B, 1C, 1D, 1E, 1F, 1H, 1I, 1J, 1K, 1L, and 1M The condensing lens portions 3A, 3B, 3C, 3D, 3E, 3F, 3H, 3I, 3J, 3K, 3L, and 3M are condensed in the vertical direction of the vehicular lamp, and then the vehicular lamp by the cylindrical lens 2 The light is further condensed in the up and down direction and irradiated to the front side of the vehicular lamp.

  That is, in the vehicular lamp of the first embodiment, the emitted light from the LEDs 1A, 1B, 1C, 1D, 1E, 1F, 1H, 1I, 1J, 1K, 1L, 1M is converted into the condensing lens portions 3A, 3B, 3C, 3D, 3E, 3F, 3H, 3I, 3J, 3K, 3L, and 3M and the cylindrical lens 2 are condensed in the vertical direction of the vehicular lamp. For this reason, in the vehicular lamp of the first embodiment, the condensing lens portions 3A, 3B, 3C, 3D, 3E, 3F, 3H, 3I, 3J, 3K, 3L, and 3M have a relatively high degree of condensing in the vertical direction. It is set to a small value.

  Although not shown, in the vehicular lamp of the first embodiment, the emitted light from the LEDs 1A, 1B, 1C, 1D, 1E, 1F, 1H, 1I, 1J, 1K, 1L, and 1M is first, The condensing lens portions 3A, 3B, 3C, 3D, 3E, 3F, 3H, 3I, 3J, 3K, 3L, and 3M are condensed in the left-right direction of the vehicle lamp, and then the cylindrical lens 2 The light is irradiated on the front side of the vehicular lamp without being condensed in the left-right direction. Specifically, in the vehicular lamp of the first embodiment, each of the refracted lights that have passed through the condenser lens portions 3A, 3B, 3C, 3D, 3E, 3F, 3H, 3I, 3J, 3K, 3L, and 3M. LEDs 1A, 1B, 1C, 1D, 1E, 1F, 1H, 1I, 1J, 1K, 1L, so that the diffusion angle in the left-right direction is about 20 ° (left 10 ° to right 10 °) (see FIG. 8). The radiated light from 1M is condensed in the left-right direction of the vehicular lamp by the condensing lens portions 3A, 3B, 3C, 3D, 3E, 3F, 3H, 3I, 3J, 3K, 3L, and 3M.

  That is, in the vehicular lamp of the first embodiment, the emitted light from the LEDs 1A, 1B, 1C, 1D, 1E, 1F, 1H, 1I, 1J, 1K, 1L, 1M is converted into the condensing lens portions 3A, 3B, 3C, 3D, 3E, 3F, 3H, 3I, 3J, 3K, 3L, and 3M can be focused in the left-right direction of the vehicle lamp, but the cylindrical lens 2 cannot be focused in the left-right direction of the vehicle lamp. . Therefore, in the vehicular lamp according to the first embodiment, the condensing lens portions 3A, 3B, 3C, 3D, 3E, 3F, 3H, 3I, 3J, 3K, 3L, and 3M have a relatively right and left condensing degree. It is set to a large value.

  That is, in the vehicular lamp according to the first embodiment, the degree of condensing in the left-right direction of the condensing lens portions 3A, 3B, 3C, 3D, 3E, 3F, 3H, 3I, 3J, 3K, 3L, and 3M is The light lens portions 3A, 3B, 3C, 3D, 3E, 3F, 3H, 3I, 3J, 3K, 3L, and 3M are set to have a greater degree of light collection in the vertical direction.

  In other words, in the vehicular lamp of the first embodiment, the condensing lens portions 3A, 3B, 3C, in which the light collection degree in the left-right direction (see FIG. 8) is larger than the light collection degree in the vertical direction (see FIG. 6). 3D, 3E, 3F, 3G, 3H, 3I, 3J, 3K, 3L, 3M are LEDs 1A, 1B, 1C, 1D, 1E, 1F, 1G, 1H, 1I, 1J, 1K, 1L, 1M and a cylindrical lens 2. (See FIG. 7). That is, in the vehicular lamp according to the first embodiment, the LEDs 1A, 1B, 1C, 1D, 1E, 1F, 1G, 1H, 1I, 1J, 1K, 1L, and 1M are radiated to the front side (the lower side in FIG. 7). Condensing lens portions 3A, 3B, 3C, which are arranged between the LEDs 1A, 1B, 1C, 1D, 1E, 1F, 1G, 1H, 1I, 1J, 1K, 1L, 1M and the cylindrical lens 2 By 3D, 3E, 3F, 3G, 3H, 3I, 3J, 3K, 3L, and 3M, light is condensed more in the left-right direction (left-right direction in FIG. 8) than in the up-down direction (up-down direction in FIG. 6).

  Therefore, according to the vehicular lamp of the first embodiment, the condensing lens portion 3A, in which the degree of condensing in the left-right direction (left-right direction in FIG. 8) is larger than the degree of condensing in the up-down direction (up-down direction in FIG. 6). Without passing through 3B, 3C, 3D, 3E, 3F, 3G, 3H, 3I, 3J, 3K, 3L, 3M, LEDs 1A, 1B, 1C, 1D, 1E, 1F, 1G, 1H, 1I, 1J, 1K, Compared with the case where the radiated light from 1L and 1M is irradiated on the front side of the vehicular lamp only through the cylindrical lens 2, the light distribution pattern is narrowed to collect the irradiated light, thereby The front side of the lamp can be illuminated brightly. That is, a so-called spot-like light distribution pattern can be formed.

  In detail, according to the vehicular lamp of the first embodiment, the condensing lens portions 3A, 3B, 3C, 3D, 3E, 3F, 3G, and the like. Compared with the case where 3H, 3I, 3J, 3K, 3L, and 3M are not provided, the front side of the vehicular lamp can be illuminated brightly while reducing the horizontal dimension of the cylindrical lens 2. In other words, according to the vehicular lamp of the first embodiment, the front side of the vehicular lamp can be illuminated sufficiently brightly by the horizontally distributed light distribution pattern while reducing the horizontal dimension of the cylindrical lens 2.

  More specifically, according to the vehicular lamp of the first embodiment, the area of an opening (not shown) formed in the front portion of the vehicle for irradiating the irradiation light from the cylindrical lens 2 to the front of the vehicle. It is possible to illuminate the front side of the vehicular lamp sufficiently brightly while reducing the size.

  FIG. 9 is a component diagram of the LED 1A of the vehicular lamp according to the first embodiment. Specifically, FIG. 9A is a plan view of the LED 1A, FIG. 9B is a left side view of the LED 1A, and FIG. 9C is a cross-sectional view of the LED 1A. As shown in FIG. 9, in the vehicular lamp of the first embodiment, in order to illuminate the front side of the vehicular lamp sufficiently brightly, one LED 1A is provided with three light emitters 1A1, 1A2, 1A3, The light emitters 1A1, 1A2, and 1A3 are sealed with a material having a diffusive property. As described above, the LEDs 1B, 1C, 1D, 1E, 1F, 1G, 1H, 1I, 1J, 1K, 1L, and 1M are also configured similarly to the LED 1A shown in FIG.

  In the vehicular lamp of the first embodiment, three light emitters are provided for each of the LEDs 1A, 1B, 1C, 1D, 1E, 1F, 1G, 1H, 1I, 1J, 1K, 1L, and 1M. In the vehicular lamp of the seventh embodiment, instead of a sufficiently bright single light emitter, LEDs 1A, 1B, 1C, 1D, 1E, 1F, 1G, 1H, 1I, 1J, 1K, 1L, 1M It is also possible to provide each.

  Specifically, in the vehicular lamp of the first embodiment, as shown in FIGS. 6 and 8, the convex shape on the LED 1G side (upper side in FIG. 8) of the condenser lens portion 3G viewed from the upper side of the vehicular lamp. The curvature of the cross-sectional shape of the surface is larger than the curvature of the cross-sectional shape of the convex surface on the LED 1G side (right side in FIG. 6) of the condenser lens portion 3G as viewed from the right side of the vehicle lamp, and is viewed from the upper side of the vehicle lamp. The curvature of the cross-sectional shape of the convex surface on the cylindrical lens 2 side (lower side of FIG. 8) of the condenser lens portion 3G is the cylindrical lens 2 side of the condenser lens portion 3G viewed from the right side of the vehicle lamp (FIG. 6). The condensing lens portion 3G is formed so as to be larger than the curvature of the cross-sectional shape of the convex surface on the left side. Therefore, according to the vehicular lamp of the first embodiment, the light emitted from the LED 1G to the front side (the left side in FIG. 6 and the lower side in FIG. 8) is collected between the LED 1G and the cylindrical lens 2. By the optical lens unit 3G, the light can be condensed more in the left-right direction (left-right direction in FIG. 8) than in the up-down direction (up-down direction in FIG. 6).

  That is, according to the vehicular lamp of the first embodiment, the light emitted from the LED 1G is emitted in the left-right direction (left-right direction in FIG. 8) from the up-down direction (up-down direction in FIG. 6) by the single condenser lens portion 3G. The light can be greatly condensed. In other words, according to the vehicular lamp of the first embodiment, in order to condense the emitted light from the LED 1G more largely in the left-right direction (left-right direction in FIG. 8) than in the up-down direction (up-down direction in FIG. 6). It is possible to eliminate the necessity of arranging the type of lens between the LED 1G and the cylindrical lens 2.

  Similarly, although not shown, in the vehicular lamp of the first embodiment, the condensing lens portions 3A, 3B, 3C, 3D, 3E, 3F, 3H, 3I, 3J, 3K viewed from the upper side of the vehicular lamp. 3L, 3M LEDs 1A, 1B, 1C, 1D, 1E, 1F, 1H, 1I, 1J, 1K, 1L, 1M side (upper side in FIG. 7), the curvature of the cross-sectional shape is the right side of the vehicle lamp 3A, 3B, 3C, 3D, 3E, 3F, 3H, 3I, 3J, 3K, 3L, 3M LEDs 1A, 1B, 1C, 1D, 1E, 1F, 1H, 1I, 1J, 1K , 1L, 1M side convex shape, the larger the curvature of the cross-sectional shape, the condensing lens portions 3A, 3B, 3C, 3D, 3E, 3F, 3H, 3I, 3J, 3K, as viewed from the upper side of the vehicle lamp Breaking the convex surface on the 3L, 3M cylindrical lens 2 side (lower side in FIG. 7) The curvature of the shape of the convex lens on the cylindrical lens 2 side of the condenser lens portions 3A, 3B, 3C, 3D, 3E, 3F, 3H, 3I, 3J, 3K, 3L, and 3M viewed from the right side of the vehicle lamp The condenser lens portions 3A, 3B, 3C, 3D, 3E, 3F, 3H, 3I, 3J, 3K, 3L, and 3M are formed so as to be larger than the curvature of the cross-sectional shape.

  Therefore, according to the vehicular lamp of the first embodiment, the LEDs 1A, 1B, 1C, 1D, 1E, 1F, 1H, 1I, 1J, 1K, 1L, and 1M are radiated to the front side (lower side in FIG. 7). Condensing lens portions 3A, 3B, 3C, 3D disposed between the LEDs 1A, 1B, 1C, 1D, 1E, 1F, 1H, 1I, 1J, 1K, 1L, 1M and the cylindrical lens 2; With 3E, 3F, 3H, 3I, 3J, 3K, 3L, and 3M, it is possible to focus light more in the left-right direction (left-right direction in FIG. 7) than in the up-down direction.

  That is, according to the vehicular lamp of the first embodiment, the condenser lenses 3A, 3B, 3C, 3D, 3E, 3F, 3H, 3I, 3J, 3K, 3L, and 3M cause the LEDs 1A, 1B, 1C, Radiated light from 1D, 1E, 1F, 1H, 1I, 1J, 1K, 1L, and 1M can be concentrated more in the left-right direction (left-right direction in FIG. 7) than in the up-down direction. In other words, according to the vehicular lamp of the first embodiment, the emitted light from the LEDs 1A, 1B, 1C, 1D, 1E, 1F, 1H, 1I, 1J, 1K, 1L, 1M In order to condense greatly in the horizontal direction (FIG. 7), the two types of lenses 1A, 1B, 1C, 1D, 1E, 1F, 1H, 1I, 1J, 1K, 1L, 1M and the cylindrical lens 2 It is possible to eliminate the necessity of placing them in between.

  More specifically, in the vehicular lamp of the first embodiment, as shown in FIG. 8, a convex surface on the LED 1G side (upper side in FIG. 8) of the condenser lens portion 3G viewed from the upper side of the vehicular lamp. So that the convex shape of the convex surface on the cylindrical lens 2 side (lower side in FIG. 8) of the condenser lens portion 3G viewed from the upper side of the vehicle lamp is an arc or an elliptical arc. A condensing lens portion 3G is formed. Therefore, according to the vehicular lamp of the first embodiment, the convex surface on the LED 1G side (upper side in FIG. 8) and the cylindrical lens 2 side (in FIG. 8) of the condenser lens portion 3G viewed from the upper side of the vehicular lamp. The distance between the LED 1G and the condensing lens unit 3G is shorter than the case where the cross-sectional shape of the convex surface on the lower side is a curve other than an arc or an elliptical arc, and the surface of the condensing lens unit 3G The light emitted from the LED 1G can be condensed in the left-right direction (the left-right direction in FIG. 8) while improving the use efficiency of the light and the utilization efficiency of the light emitted from the LED 1G on the surface of the condenser lens portion 3G.

  Further, in the vehicular lamp of the first embodiment, as shown in FIG. 6, the cross-sectional shape of the convex surface on the LED 1G side (right side of FIG. 6) of the condenser lens portion 3G viewed from the right side of the vehicular lamp is The condensing lens unit 3G has a circular arc or an elliptical arc, and the cross-sectional shape of the convex surface on the cylindrical lens 2 side (left side in FIG. 6) of the condensing lens unit 3G viewed from the right side of the vehicle lamp is a hyperbola. Is formed. Therefore, according to the vehicular lamp of the first embodiment, the cross-sectional shape of the convex surface on the LED 1G side (right side in FIG. 6) of the condenser lens portion 3G viewed from the right side of the vehicular lamp is other than an arc or an elliptical arc. Compared to the case where the convex shape of the convex surface on the cylindrical lens 2 side (left side in FIG. 6) of the condenser lens portion 3G viewed from the right side of the vehicle lamp is a curve other than a hyperbola, From the LED 1G, the distance from the condensing lens unit 3G is shortened, and the utilization efficiency of the surface of the condensing lens unit 3G and the utilization efficiency of the emitted light from the LED 1G on the surface of the condensing lens unit 3G are improved. Can be collected in the vertical direction (vertical direction in FIG. 6).

  Similarly, in the vehicular lamp of the first embodiment, as shown in FIG. 7, the condenser lens portions 3A, 3B, 3C, 3D, 3E, 3F, 3H, 3I, and 3J viewed from the upper side of the vehicular lamp. , 3K, 3L, 3M LEDs 1A, 1B, 1C, 1D, 1E, 1F, 1H, 1I, 1J, 1K, 1L, 1M side (upper side in FIG. 7), the cross-sectional shape is an arc or an elliptical arc Convex lens portions 3A, 3B, 3C, 3D, 3E, 3F, 3H, 3I, 3J, 3K, 3L, and 3M on the cylindrical lens 2 side (lower side in FIG. 7) viewed from the upper side of the vehicle lamp The condensing lens portions 3A, 3B, 3C, 3D, 3E, 3F, 3H, 3I, 3J, 3K, 3L, and 3M are formed so that the cross-sectional shape of the surface is an arc or an elliptical arc.

  Therefore, according to the vehicular lamp of the first embodiment, the condenser lens portions 3A, 3B, 3C, 3D, 3E, 3F, 3H, 3I, 3J, 3K, 3L, and 3M viewed from the upper side of the vehicular lamp. LED 1A, 1B, 1C, 1D, 1E, 1F, 1H, 1I, 1J, 1K, 1L, 1M side (upper side in FIG. 7) convex surface and cylindrical lens 2 side (lower side in FIG. 7) convex shape LED 1A, 1B, 1C, 1D, 1E, 1F, 1H, 1I, 1J, 1K, 1L, and 1M and condensing lens portions 3A and 3B, as compared with the case where the cross-sectional shape of the surface is a curve other than an arc or an elliptical arc. , 3C, 3D, 3E, 3F, 3H, 3I, 3J, 3K, 3L, 3M, and the condenser lens portions 3A, 3B, 3C, 3D, 3E, 3F, 3H, 3I , 3J, 3K, 3L, 3M surface utilization efficiency and light collection LEDs 1A, 1B, 1C, 1D, 1E, 1F, 1H, 1I, 1J, 1K, 1L on the surface of the 3A, 3B, 3C, 3D, 3E, 3F, 3H, 3I, 3J, 3K, 3L, 3M While improving the utilization efficiency of the emitted light from 1M, the emitted light from LEDs 1A, 1B, 1C, 1D, 1E, 1F, 1H, 1I, 1J, 1K, 1L, and 1M is moved in the horizontal direction (the horizontal direction in FIG. 7). Can be condensed.

  Although not shown, in the vehicular lamp of the first embodiment, the condensing lens portions 3A, 3B, 3C, 3D, 3E, 3F, 3H, 3I, 3J, 3K, and 3L viewed from the right side of the vehicular lamp. , 3M LEDs 1A, 1B, 1C, 1D, 1E, 1F, 1H, 1I, 1J, 1K, 1L, 1M The cross-sectional shape of the convex surface becomes an arc or an elliptical arc, and is a collection viewed from the right side of the vehicle lamp The condensing lens portion 3A so that the cross-sectional shape of the convex surface on the cylindrical lens 2 side of the optical lens portions 3A, 3B, 3C, 3D, 3E, 3F, 3H, 3I, 3J, 3K, 3L, and 3M is a hyperbola. , 3B, 3C, 3D, 3E, 3F, 3H, 3I, 3J, 3K, 3L, and 3M are formed.

  Therefore, according to the vehicular lamp of the first embodiment, the condenser lens portions 3A, 3B, 3C, 3D, 3E, 3F, 3H, 3I, 3J, 3K, 3L, and 3M viewed from the right side of the vehicular lamp. LED 1A, 1B, 1C, 1D, 1E, 1F, 1H, 1I, 1J, 1K, 1L, 1M side of the convex surface becomes a curve other than an arc or an elliptical arc, viewed from the right side of the vehicle lamp From the case where the cross-sectional shape of the convex surface on the side of the cylindrical lens 2 of the condenser lenses 3A, 3B, 3C, 3D, 3E, 3F, 3H, 3I, 3J, 3K, 3L, and 3M is a curve other than a hyperbola. LED 1A, 1B, 1C, 1D, 1E, 1F, 1H, 1I, 1J, 1K, 1L, 1M and condenser lens portions 3A, 3B, 3C, 3D, 3E, 3F, 3H, 3I, 3J, 3K, Shorten the distance between 3L and 3M, and The utilization efficiency of the surfaces of the optical lens portions 3A, 3B, 3C, 3D, 3E, 3F, 3H, 3I, 3J, 3K, 3L, 3M and the condensing lens portions 3A, 3B, 3C, 3D, 3E, 3F, 3H, LEDs 1A, 1B on the surfaces of 3I, 3J, 3K, 3L, 3M while improving the efficiency of use of the emitted light from LEDs 1A, 1B, 1C, 1D, 1E, 1F, 1H, 1I, 1J, 1K, 1L, 1M , 1C, 1D, 1E, 1F, 1H, 1I, 1J, 1K, 1L, 1M can be condensed vertically.

  That is, in the vehicular lamp of the first embodiment, the condenser lenses 3A, 3B, 3C, 3D, 3E, 3F, 3G, 3H, 3I, 3J, 3K, 3L, and 3M LEDs 1A, 1B, 1C, and 1D. , 1E, 1F, 1G, 1H, 1I, 1J, 1K, 1L, 1M, and the convex surface on the cylindrical lens 2 side are set as described above, so that the distribution of light distribution It is possible to approximate the way the light distribution is intended.

  In detail, in the vehicular lamp according to the first embodiment, as shown in FIGS. 6 and 8, the convex surface on the LED 1G side (right side of FIG. 6, upper side of FIG. 8) of the condenser lens portion 3G. Is made smaller than the curvature of the convex surface on the cylindrical lens 2 side (left side in FIG. 6, lower side in FIG. 8) of the condensing lens portion 3G. Therefore, according to the vehicular lamp of the first embodiment, the curvature of the convex surface on the LED 1G side (the right side in FIG. 6 and the upper side in FIG. 8) of the condensing lens unit 3G is the cylindrical lens 2 of the condensing lens unit 3G. The radiated light from the LED 1G is larger than the curvature of the convex surface on the side (left side in FIG. 6, lower side in FIG. 8). It is possible to reduce the ratio of being reflected by the convex surface on the upper side. That is, according to the vehicular lamp of the first embodiment, the curvature of the convex surface on the LED 1G side (the right side in FIG. 6 and the upper side in FIG. 8) of the condensing lens unit 3G is the cylindrical lens 2 of the condensing lens unit 3G. The utilization efficiency of the emitted light from the LED 1G can be improved as compared with the case where the curvature is larger than the curvature of the convex surface on the side (the left side in FIG. 6, the lower side in FIG. 8).

  Similarly, in the vehicular lamp according to the first embodiment, as shown in FIG. 7, LED 1A of condensing lens portions 3A, 3B, 3C, 3D, 3E, 3F, 3H, 3I, 3J, 3K, 3L, and 3M. , 1B, 1C, 1D, 1E, 1F, 1H, 1I, 1J, 1K, 1L, 1M (upper side in FIG. 7), the curvature of the convex surface is the condensing lens portion 3A, 3B, 3C, 3D, 3E. , 3F, 3H, 3I, 3J, 3K, 3L, and 3M are made smaller than the curvature of the convex surface on the cylindrical lens 2 side (lower side in FIG. 7).

  Therefore, according to the vehicular lamp of the first embodiment, the condensing lens portions 3A, 3B, 3C, 3D, 3E, 3F, 3H, 3I, 3J, 3K, 3L, and 3M LEDs 1A, 1B, 1C, and 1D. , 1E, 1F, 1H, 1I, 1J, 1K, 1L, 1M side (upper side in FIG. 7), the curvature of the convex surface is the condensing lens portion 3A, 3B, 3C, 3D, 3E, 3F, 3H, 3I, The LEDs 1A, 1B, 1C, 1D, 1E, 1F, 1H, 1I, and 3J, 3K, 3L, and 3M are larger than the curvature of the convex surface on the cylindrical lens 2 side (lower side in FIG. 7). The emitted light from 1J, 1K, 1L, and 1M is emitted from the condensing lens portions 3A, 3B, 3C, 3D, 3E, 3F, 3H, 3I, 3J, 3K, 3L, and 3M LEDs 1A, 1B, 1C, 1D, 1E, 1F, 1H, 1I, 1J, 1K, 1L, 1M side (in FIG. It is possible to reduce the percentage would be reflected by the convex surface side).

  That is, according to the vehicular lamp of the first embodiment, the condensing lens portions 3A, 3B, 3C, 3D, 3E, 3F, 3H, 3I, 3J, 3K, 3L, and 3M LEDs 1A, 1B, 1C, and 1D. , 1E, 1F, 1H, 1I, 1J, 1K, 1L, 1M side (upper side in FIG. 7), the curvature of the convex surface is the condensing lens portion 3A, 3B, 3C, 3D, 3E, 3F, 3H, 3I, The LEDs 1A, 1B, 1C, 1D, 1E, 1F, 1H, 1I, and 3J, 3K, 3L, and 3M are larger than the curvature of the convex surface on the cylindrical lens 2 side (lower side in FIG. 7). The utilization efficiency of the radiated light from 1J, 1K, 1L, and 1M can be improved.

  More specifically, in the vehicular lamp of the first embodiment, as shown in FIGS. 5 to 8, the LED 1 </ b> G is from a focal point (see FIGS. 6 and 8) formed by the cylindrical lens 2 and the condenser lens unit 3 </ b> G. It is arranged on the condensing lens portion 3G side (left side in FIG. 6, lower side in FIG. 8). Therefore, according to the vehicular lamp of the first embodiment, the degree of diffusion of the refracted light that has passed through the condenser lens portion 3G and the cylindrical lens 2 in the left-right direction (left-right direction in FIG. 7) The refracted light that has passed through the condensing lens unit 3G and the cylindrical lens 2 can be diffused in the left-right direction (left-right direction in FIG. 7) of the vehicle lamp while being reduced from the degree of diffusion in the direction (left-right direction in FIG. 8). . Furthermore, according to the vehicular lamp of the first embodiment, the refracted light that has passed through the condenser lens portion 3G and the cylindrical lens 2 can be diffused in the vertical direction of the vehicular lamp (the vertical direction in FIG. 5). As a result, according to the vehicular lamp of the first embodiment, the distribution method of light distribution can be made closer to the intended distribution method of light distribution.

  In the vehicular lamp of the first embodiment, as described above, the LED 1G is closer to the condensing lens unit 3G (see FIG. 6) than the focal point (see FIGS. 6 and 8) formed by the cylindrical lens 2 and the condensing lens unit 3G. Since the LED 1G is disposed on the focal point (see FIGS. 6 and 8) of the cylindrical lens 2 and the condenser lens portion 3G, the LED 1G is disposed on the left side of FIG. The utilization efficiency of the emitted light can be improved.

  Specifically, as shown in FIG. 6, if the LED 1G is disposed on the focal point (see FIG. 6) of the cylindrical lens 2 and the condenser lens unit 3G, the main optical axis of the LED 1G is assumed. The light emitted at an angle β can be used in the condensing lens unit 3G, whereas the LED 1G uses the condensing lens unit 3G from the focal point of the cylindrical lens 2 and the condensing lens unit 3G (see FIG. 6). In the vehicular lamp of the first embodiment arranged on the side (left side in FIG. 6), the light that is emitted at an angle α (> β) with respect to the main optical axis of the LED 1G is used as the condensing lens unit 3G. Can be used.

  Also, as shown in FIG. 8, if the LED 1G is disposed on the focal point (see FIG. 8) by the cylindrical lens 2 and the condensing lens portion 3G, the angle β with respect to the main optical axis of the LED 1G. While the light emitted as' can be used in the condensing lens unit 3G, the LED 1G is closer to the condensing lens unit 3G than the focal point of the cylindrical lens 2 and the condensing lens unit 3G (see FIG. 8). In the vehicular lamp according to the first embodiment disposed on the lower side of FIG. 8, the light emitted at an angle α ′ (> β ′) with respect to the main optical axis of the LED 1 </ b> G is collected by a condenser lens. It can be used in the part 3G.

  Furthermore, in the vehicular lamp according to the first embodiment, as described above, the LED 1G is closer to the condensing lens unit 3G (see FIG. 6) than the focal point (see FIGS. 6 and 8) formed by the cylindrical lens 2 and the condensing lens unit 3G. The LED 1G is disposed on the focal point (see FIGS. 6 and 8) of the cylindrical lens 2 and the condensing lens unit 3G as shown in FIG. The possibility that the image of the light emitting unit is irradiated as it is can be reduced. That is, the first LED 1G is arranged on the condenser lens unit 3G side (left side in FIG. 6, lower side in FIG. 8) from the focal point (see FIGS. 6 and 8) by the cylindrical lens 2 and the condenser lens unit 3G. In the vehicular lamp of the embodiment, the image of the light emitting portion of the LED 1G can be blurred and irradiated.

  Similarly, in the vehicular lamp of the first embodiment, as shown in FIG. 7, the LEDs 1A, 1B, 1C, 1D, 1E, 1F, 1H, 1I, 1J, 1K, 1L, and 1M are collected with the cylindrical lens 2. Condensing lens portions 3A, 3B, 3C, 3D, 3E, 3F from the focal point (not shown) by the optical lens portions 3A, 3B, 3C, 3D, 3E, 3F, 3H, 3I, 3J, 3K, 3L, 3M. , 3H, 3I, 3J, 3K, 3L, 3M (lower side in FIG. 7).

  Therefore, according to the vehicular lamp of the first embodiment, the refraction that has passed through the condenser lens portions 3A, 3B, 3C, 3D, 3E, 3F, 3H, 3I, 3J, 3K, 3L, 3M and the cylindrical lens 2 is achieved. The degree of diffusion of light in the left-right direction (left-right direction in FIG. 7) is determined by the left-right direction of light emitted from LEDs 1A, 1B, 1C, 1D, 1E, 1F, 1H, 1I, 1J, 1K, 1L, 1M (left-right in FIG. 7). Refracted light that has passed through the condensing lens portions 3A, 3B, 3C, 3D, 3E, 3F, 3H, 3I, 3J, 3K, 3L, 3M and the cylindrical lens 2 while reducing the degree of diffusion in the direction of the vehicle) In the left-right direction (left-right direction in FIG. 7), and according to the vehicular lamp of the first embodiment, the condensing lens portions 3A, 3B, 3C, 3D, 3E, 3F, 3H, 3I, 3J, 3K, 3 , It is possible to diffuse the refracted light that has passed through the 3M and the cylindrical lens 2 in the vertical direction of the vehicle lamp.

  According to the vehicular lamp of the first embodiment, the LEDs 1A, 1B, 1C, 1D, 1E, 1F, 1H, 1I, 1J, 1K, 1L, and 1M are the cylindrical lens 2 and the condensing lens portions 3A and 3B. , 3C, 3D, 3E, 3F, 3H, 3I, 3J, 3K, 3L, and 3M, the LED 1A, 1B, 1C, 1D, 1E, 1F, The utilization efficiency of the emitted light from 1H, 1I, 1J, 1K, 1L, and 1M can be improved.

  Furthermore, according to the vehicular lamp of the first embodiment, the LEDs 1A, 1B, 1C, 1D, 1E, 1F, 1H, 1I, 1J, 1K, 1L, and 1M are the cylindrical lens 2 and the condensing lens portions 3A and 3B. , 3C, 3D, 3E, 3F, 3H, 3I, 3J, 3K, 3L, and 3M, as in the case where the LEDs 1A, 1B, 1C, 1D, 1E, 1F, It is possible to reduce the possibility that the images of the 1H, 1I, 1J, 1K, 1L, and 1M light emitting portions are irradiated as they are.

  In the vehicular lamp of the first embodiment, as shown in FIGS. 6 and 8, the LED 1G is about 0.5 mm from the focal point (see FIGS. 6 and 8) formed by the cylindrical lens 2 and the condensing lens portion 3G. It is arranged on the condensing lens portion 3G side (left side in FIG. 6, lower side in FIG. 8). Therefore, according to the vehicular lamp of the first embodiment, as shown in FIGS. 7 and 8, the refracted light that has passed through the condenser lens portion 3G and the cylindrical lens 2 is refracted in the front-rear direction of the vehicular lamp (FIG. 7). Further, the vehicle lamp can be diffused in the left-right direction (the left-right direction in FIGS. 7 and 8) with a diffusion angle of about 10 ° with respect to the up-down direction in FIG.

  Similarly, in the vehicular lamp of the first embodiment, as shown in FIG. 7, the LEDs 1A, 1B, 1C, 1D, 1E, 1F, 1H, 1I, 1J, 1K, 1L, and 1M are collected with the cylindrical lens 2. About 0.5 mm from the focal point (not shown) by the optical lens portions 3A, 3B, 3C, 3D, 3E, 3F, 3H, 3I, 3J, 3K, 3L, 3M, and the condensing lens portions 3A, 3B, 3C, 3D , 3E, 3F, 3H, 3I, 3J, 3K, 3L, 3M (lower side in FIG. 7). Therefore, according to the vehicular lamp of the first embodiment, the refraction that has passed through the condenser lens portions 3A, 3B, 3C, 3D, 3E, 3F, 3H, 3I, 3J, 3K, 3L, 3M and the cylindrical lens 2 is achieved. The light can be diffused in the left-right direction (left-right direction in FIG. 7) of the vehicle lamp at a diffusion angle that forms an angle of about 10 ° with respect to the front-back direction of the vehicle lamp (up-down direction in FIG. 7).

  In the vehicular lamp of the first embodiment, as described above, the LEDs 1A, 1B, 1C, 1D, 1E, 1F, 1G, 1H, 1I, 1J, 1K, 1L, and 1M are the cylindrical lens 2 and the condenser lens unit. 3A, 3B, 3C, 3D, 3E, 3F, 3G, 3H, 3I, 3J, 3K, 3L, 3M from the focal point (not shown) about 0.5 mm condensing lens part 3A, 3B, 3C, 3D, Although arranged on the 3E, 3F, 3G, 3H, 3I, 3J, 3K, 3L, and 3M sides (lower side in FIG. 7), in the vehicular lamp of the eighth embodiment, instead, for example, 0.5 mm LEDs 1A, 1B, 1C, 1D, 1E, 1F, 1G, 1H, 1I, 1J, 1K, 1L, and 1M are connected to the cylindrical lens 2 and the condensing lens portions 3A, 3B, 3C, 3D, 3E, and the like. 3F, 3G, 3H, 3I, 3J, Condensing lens portions 3A, 3B, 3C, 3D, 3E, 3F, 3G, 3H, 3I, 3J, 3K, 3L, 3M side (lower side in FIG. 7) from the focal point (not shown) by K, 3L, 3M ) Can also be arranged.

  FIG. 10 is a view showing a light distribution pattern of the vehicular lamp according to the first embodiment. The curve in FIG. 10 shows a line connecting points having the same brightness. In the light distribution pattern of the vehicular lamp of the first embodiment shown in FIG. 10, the center side of FIG. 10 is brighter than the outer peripheral side of FIG. Since the vehicular lamp according to the first embodiment is configured as described above, it is possible to form an ideal light distribution pattern that is strongly condensed in a spot shape as shown in FIG. Therefore, according to the vehicular lamp of the first embodiment, an opening (not shown) formed in the front portion of the vehicle for irradiating the irradiation light from the vehicular lamp of the first embodiment to the front of the vehicle. 2), the front side of the vehicular lamp can be illuminated sufficiently brightly by infrared light, and night vision performance can be improved.

It is the perspective view which looked at the vehicle lamp of 1st Embodiment from the front side, the left side, and the upper side. It is a top view of the vehicular lamp of a 1st embodiment. It is a front view of the vehicular lamp of a 1st embodiment. It is a right view of the vehicle lamp of 1st Embodiment. It is AA sectional drawing of the vehicle lamp of 1st Embodiment shown in FIG. It is an enlarged view of the vehicle lamp of 1st Embodiment shown in FIG. It is BB sectional drawing of the vehicle lamp of 1st Embodiment shown in FIG. It is an enlarged view of the vehicle lamp of 1st Embodiment shown in FIG. It is a component diagram of LED1A of the vehicle lamp of 1st Embodiment. It is the figure which showed the light distribution pattern of the vehicle lamp of 1st Embodiment.

Explanation of symbols

1A, 1B, 1C, 1D, 1E, 1F, 1G LED
1H, 1I, 1J, 1K, 1L, 1M LED
2 Cylindrical lens 2A Lens part 2B Frame part 3 Condensing lens units 3A, 3B, 3C, 3D, 3E, 3F, 3G Condensing lens parts 3H, 3I, 3J, 3K, 3L, 3M Condensing lens part 4 Substrate 5 Support Member 5A Base part 5B Side wall part

Claims (7)

  In a vehicular lamp provided with a plurality of light emitting elements arranged on a straight line extending in the left-right direction and provided with a cylindrical lens for converging light emitted forward from the plurality of light emitting elements in a vertical direction, A vehicular lamp characterized in that a condensing lens having a light condensing degree larger than that in the vertical direction is arranged between each light emitting element and the cylindrical lens.   The curvature of the cross-sectional shape of the convex surface on the light emitting element side of the condensing lens viewed from the upper side or the lower side is more than the curvature of the cross-sectional shape of the convex surface on the light emitting element side of the condensing lens viewed from the left or right side. The curvature of the convex shape of the convex surface on the cylindrical lens side of the condenser lens when viewed from the upper side or the lower side is larger, and the sectional shape of the convex surface on the cylindrical lens side of the condenser lens when viewed from the left side or the right side The vehicular lamp according to claim 1, wherein the condenser lens is formed so as to be larger than the curvature of the vehicle lamp.   The cross-sectional shape of the convex surface on the light emitting element side of the condenser lens viewed from above or below is an arc or elliptical arc, and the cross-section of the convex surface on the cylindrical lens side of the condenser lens viewed from above or below The cross-sectional shape of the convex surface on the light emitting element side of the condenser lens viewed from the left or right side is an arc or elliptical arc when viewed from the left or right side, and the cylindrical lens side of the condenser lens viewed from the left side or right side The vehicular lamp according to claim 1, wherein the condensing lens is formed so that a cross-sectional shape of the convex surface is a hyperbola.   The curvature of the convex surface by the side of the light emitting element of the said condensing lens was made smaller than the curvature of the convex surface by the side of the cylindrical lens of the said condensing lens, It is any one of Claims 1-3 characterized by the above-mentioned. Vehicle lamp.   The vehicular lamp according to any one of claims 1 to 4, wherein the light emitting element is disposed closer to a condensing lens than a focal point of the cylindrical lens and the condensing lens.   The vehicular lamp according to claim 5, wherein the light emitting element is disposed about 0.5 mm from the focal point of the cylindrical lens and the condensing lens on the condensing lens side.   The vehicular lamp according to any one of claims 1 to 6, wherein the plurality of condensing lenses are formed of one member.

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