JP2007220572A - Lighting system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To widely irradiate the frontward and rearward directions of a lighting system with light from a light emitting element module. <P>SOLUTION: This lighting system is provided with the light emitting element modules 1 each having light emitting elements 1a, a mounting member 2 for mounting the plurality of light emitting element modules 1 thereto, and a support 4 for supporting the mounting member 2, wherein the mounting member 2 is bent in a plurality of steps to direct light from the plurality of light emitting modules 1 mounted to the mounting member 2 in a plurality of distinct directions. In the lighting system, the mounting member 2 is bent in the plurality of steps so that an angle θ1-2 formed by a main optical axis line L1-2 of the light emitting element module 1-2 mounted to a part on the tip side of the mounting member 2 and a horizontal plane HL is set smaller than an angle θ1-8 formed by a main optical axis line L1-8 of the light emitting element module 1-8 mounted to a part on the root side of the mounting member 2 and the horizontal plane HL. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an illuminating device in which a mounting member is bent in a plurality of stages so that light from a plurality of light emitting element modules attached to the mounting member is directed in a plurality of different directions. It is related with the illuminating device which can irradiate the light of a wide angle in the front-back direction of an illuminating device.

  Specifically, the present invention relates to a lighting device that can brightly illuminate both the front side of the lighting device and a position close to the lighting device and a position away from the lighting device.

  Conventionally, a plurality of light emitting element modules each having a light emitting element module having a light emitting element, an attachment member for attaching a plurality of light emitting element modules, and a support member for supporting the attachment members. 2. Description of the Related Art A lighting device (lighting fixture) is known in which an attachment member is bent in a plurality of stages so that light from the light is directed in a plurality of different directions. As an example of this type of lighting device (lighting fixture), for example, there is one described in Japanese Patent Application Laid-Open No. 2004-200102.

  In the lighting device (lighting fixture) described in Japanese Patent Laid-Open No. 2004-200102, one light emitting element module is configured by a plurality of white light emitting diodes and one flat printed board. Further, five light emitting element modules are attached to an attachment member (attachment bracket) bent in five stages. Further, an attachment member (attachment bracket) to which five light emitting element modules are attached is supported by a support member (pole).

  Specifically, in a lighting device (lighting fixture) described in Japanese Patent Application Laid-Open No. 2004-200102, a mounting member (mounting bracket) is bent in five stages in the left-right direction.

  Therefore, in the lighting device (lighting fixture) described in Japanese Patent Application Laid-Open No. 2004-200102, among the mounting members (mounting brackets) bent in five stages in the left-right direction, the central portion of the mounting member (mounting bracket) is used. The angle formed between the main optical axis of the mounted light emitting element module and the horizontal plane is the largest, and the angle formed between the main optical axis of the light emitting element module mounted on the right side of the horizontal plane and the horizontal plane is the second largest. Furthermore, the angle formed by the main optical axis of the light emitting element module attached to the right portion and the horizontal plane is the smallest.

  Moreover, in the illuminating device (lighting fixture) described in Unexamined-Japanese-Patent No. 2004-200102, it attaches to the center part of an attachment member (attachment metal fitting) among the attachment members (attachment metal fitting) bent in five steps in the left-right direction. The angle between the main optical axis of the mounted light emitting element module and the horizontal plane is the largest, and the angle between the main optical axis of the light emitting element module mounted on the left side of the horizontal plane and the horizontal plane is the second largest, Further, the angle formed between the main optical axis of the light emitting element module attached to the left portion and the horizontal plane is the smallest.

  As a result, in the lighting device (lighting fixture) described in Japanese Patent Application Laid-Open No. 2004-200102, light from the five light emitting element modules attached to the attachment member (attachment bracket) is directed in five directions, It is irradiated at a wide angle in the left-right direction of the lighting device (lighting fixture).

  Therefore, for example, when the lighting device (lighting fixture) described in Japanese Patent Application Laid-Open No. 2004-200102 is installed at the end of the road, the light from the light emitting element module can be irradiated at a wide angle in the traveling direction of the road. it can.

  By the way, in the illuminating device (lighting fixture) described in Japanese Patent Application Laid-Open No. 2004-200102, the attachment member (attachment fitting) is bent in the left-right direction, but is not bent in the front-rear direction.

  Specifically, in the lighting device (lighting fixture) described in Japanese Patent Application Laid-Open No. 2004-200102, since the mounting member (mounting bracket) is bent in the left-right direction, the right side of the mounting member (mounting bracket) or The angle between the main optical axis of the light emitting element module attached to the left part and the horizontal plane is larger than the angle between the main optical axis of the light emitting element module attached to the central part of the mounting member (mounting bracket) and the horizontal plane. Although it is small, the mounting member (mounting bracket) is not bent in the front-rear direction, so the white light emission located at the tip of the light emitting element module mounted at the center of the mounting member (mounting bracket) The main optical axis of the diode is substantially parallel to the main optical axis of the white light emitting diode located on the root side.

  As a result, in the lighting device (lighting fixture) described in Japanese Patent Application Laid-Open No. 2004-200102, the light from the light emitting element module can be irradiated in a wide angle in the left-right direction of the lighting device (lighting fixture). A wide angle cannot be irradiated in the front-rear direction of the apparatus (lighting fixture).

  Therefore, in the lighting device (lighting fixture) described in Japanese Patent Application Laid-Open No. 2004-200102, if a position near the lighting device (lighting fixture) is lit brightly on the front side of the lighting device (lighting fixture), illumination is performed. On the other hand, if a position away from the lighting device (lighting fixture) is lit brightly on the front side of the lighting device (lighting fixture), it is impossible to brightly illuminate a position away from the device (lighting fixture). It becomes impossible to brightly illuminate a position close to the device (lighting fixture).

  Specifically, for example, when the lighting device (lighting fixture) described in Japanese Patent Application Laid-Open No. 2004-200102 is installed at the end of the road, the light from the light emitting element module is irradiated in a wide angle in the lane direction of the road. As a result, only one of the road surface near the lighting device (lighting fixture) or the road surface away from the lighting device (lighting fixture) in the lane direction of the road can be illuminated brightly. .

JP 2004-200102 A

  In view of the above problems, an object of the present invention is to provide an illuminating device capable of irradiating light from a light emitting element module in a wide angle in the front-rear direction of the illuminating device.

  In other words, an object of the present invention is to provide an illuminating device that can brightly illuminate both the position near the illuminating device and the position away from the illuminating device on the front side of the illuminating device.

  Specifically, an object of the present invention is to provide a lighting device that can brightly illuminate both the road surface near the lighting device and the road surface away from the lighting device in the lane direction of the road.

  According to the first aspect of the present invention, the light emitting device module includes a light emitting device module having a light emitting device, a mounting member for mounting the plurality of light emitting device modules, and a support member for supporting the mounting member. In a lighting device in which the mounting member is bent in a plurality of stages so that light from a plurality of light emitting element modules attached to the member is directed in a plurality of different directions, the lighting device is attached to a tip side portion of the mounting member. The mounting is performed such that the angle formed between the main optical axis of the light emitting element module and the horizontal plane is smaller than the angle formed between the main optical axis of the light emitting element module mounted on the base side portion of the mounting member and the horizontal plane. An illumination device is provided in which a member is bent in a plurality of stages.

  According to the invention described in claim 2, the main optical axis of the light emitting element module attached to the tip side portion of the attachment member is directed to a position away from the illumination device on the front side of the illumination device, and The lighting device according to claim 1, wherein the main optical axis of the light emitting element module mounted on the base side portion of the mounting member is directed to a position near the lighting device on the front side of the lighting device. Provided.

  According to the third aspect of the present invention, the lens for condensing the light emitted from the light emitting element is provided, and the degree of condensing in the left-right direction of the illuminating device is higher than the degree of condensing in the front-rear direction of the illuminating device. The illumination device according to claim 2, wherein the condensing characteristic of the lens is set to be small.

  According to a fourth aspect of the present invention, the mounting member is divided into a plurality of sections, and a smaller number of light emitting element modules than the number of sections of the mounting member are mounted on the mounting member. Item 3. A lighting device according to Item 3 is provided.

  In the illuminating device according to claim 1, the angle formed between the main optical axis of the light emitting element module attached to the tip side portion of the attachment member and the horizontal plane is light emission attached to the base side portion of the attachment member. The attachment member is bent in a plurality of stages so as to be smaller than the angle formed by the main optical axis of the element module and the horizontal plane.

  In other words, in the lighting device according to claims 1 and 2, the mounting member is bent in a plurality of stages in the front-rear direction of the lighting device, and as a result, the light emitting element module mounted on the tip side portion of the mounting member. The angle formed between the main optical axis and the horizontal plane is smaller than the angle formed between the main optical axis and the horizontal plane of the light emitting element module attached to the base portion of the mounting member.

  Preferably, in the illumination device according to claims 1 and 2, the main optical axis of the light emitting element module attached to the tip side portion of the attachment member is directed to a position away from the illumination device on the front side of the illumination device. The main optical axis of the light emitting element module attached to the base side portion of the attachment member is directed to a position near the illumination device on the front side of the illumination device.

  Therefore, according to the illuminating device of Claim 1 and 2, the light from a light emitting element module can be irradiated to a wide angle in the front-back direction of an illuminating device.

  In other words, according to the illumination device of the first and second aspects, both the position near the illumination device and the position away from the illumination device can be illuminated brightly on the front side of the illumination device.

  Specifically, when the lighting device according to claim 1 or 2 is installed at the end of a road, both the road surface near the lighting device and the road surface away from the lighting device in the lane direction of the road. Can be brightly illuminated.

  Moreover, in the illuminating device of Claim 1 and 2, as mentioned above, the main optical axis line of the light emitting element module attached to the part at the front end side of the attachment member is separated from the illuminating device on the front side of the illuminating device. Than the case where the main optical axis of the light emitting element module attached to the base side portion of the attachment member is directed to a position away from the illumination device on the front side of the illumination device. The optical path from the light emitting element module can be shortened, and the position away from the lighting device can be illuminated brightly.

  The illumination device according to claim 3 is provided with a lens for collecting the light emitted from the light emitting element. Furthermore, the condensing characteristic of the lens is set so that the light collecting degree in the left-right direction of the lighting device is smaller than the light collecting degree in the front-rear direction of the lighting device.

  Therefore, according to the illuminating device of Claim 3, the light from a light emitting element module can be irradiated to the wide angle in the left-right direction of an illuminating device, suppressing the left-right direction dimension of a light emitting element module small. Therefore, according to the illuminating device of claim 3, the light from the light emitting element module is irradiated in a wide angle in the left and right direction of the lighting device while suppressing the horizontal dimension of the mounting member to which the plurality of light emitting element modules are attached. can do.

  In other words, according to the lighting device of the third aspect, the light from the light emitting element module is transmitted in the left-right direction of the lighting device while suppressing the amount of the plurality of light emitting element modules and the mounting member protruding from the support member in the left-right direction. Can be irradiated at a wide angle.

  When the mounting member is divided into a plurality of sections and the same number of light emitting element modules as the number of mounting members are mounted on the mounting member, the light from the light emitting element modules mounted in one section and the other sections are mounted. The light from the light emitting element module is overlapped.

  In view of this point, in the lighting device according to claim 4, the light from the light emitting element module attached to a certain section and the light from the light emitting element module attached to another section are reduced from overlapping. For this purpose, the mounting member is divided into a plurality of sections, and a smaller number of light emitting element modules than the number of sections of the mounting member are mounted on the mounting member.

  Therefore, according to the illuminating device of Claim 4, the number of light emitting element modules can be reduced, without reducing the performance of the whole illuminating device. As a result, according to the lighting device of the fourth aspect, it is possible to reduce the manufacturing cost and the operating cost of the lighting device without reducing the performance of the entire lighting device.

  In other words, in the illuminating device according to the fourth aspect, a larger number of sections than the number of the light emitting element modules are formed on the mounting member. Therefore, according to the lighting device of the fourth aspect, the characteristics of the entire lighting device can be easily achieved by changing the section where the light emitting element module is attached, that is, by changing the position where the light emitting element module is attached. Can be changed. That is, the characteristics of the entire lighting device can be easily changed according to the situation where the lighting device is installed.

  Hereinafter, a first embodiment of the illumination device of the present invention will be described. FIG. 1 is a view showing a light-emitting element module 1 that constitutes a part of the illumination device of the first embodiment. Specifically, FIG. 1A is a left side view of the light-emitting element module 1 partially shown in cross-section, FIG. 1B is a front view of the light-emitting element module 1, and FIG. FIG. 1D is a bottom view of the light-emitting element module 1 as viewed from the front side, the left side, and the lower side.

  In FIG. 1, reference numeral 1a denotes a light emitting element such as an LED. Reference numeral 1b denotes a reflector having a reflecting surface for reflecting light emitted from the light emitting element 1a downward (downward in FIGS. 1A and 1B). Reference numeral 1c denotes a lens attached to the reflector 1b in order to control light distribution of direct light from the light emitting element 1a and reflected light from the reflecting surface of the reflector 1b.

  In FIG. 1, reference numeral 1d denotes a thermal interface material for supporting the light emitting element 1a and the reflector 1b and for radiating or conducting heat generated by the light emitting element 1a. Reference numeral 1e denotes a housing for supporting the thermal interface material 1d. Reference numeral 1e1 denotes a fin constituting a part of the housing 1e. Reference numeral 1f denotes a cover for covering the light emitting element 1a, the reflector 1b, the lens 1c, and the thermal interface material 1d. Reference numeral 2 denotes an attachment member for attaching the light emitting element module 1.

  In the illumination device of the first embodiment, part of the heat generated by the light emitting element 1a is dissipated from the thermal interface material 1d. A part of the heat generated by the light emitting element 1a is thermally conducted to the fin 1e1 of the housing 1e through the thermal interface material 1d, and is radiated from the fin 1e1. Further, part of the heat generated by the light emitting element 1a is thermally conducted to the attachment member 2 through the thermal interface material 1d and the housing 1e, and is radiated from the attachment member 2.

  In the illuminating device of the first embodiment, as shown in FIG. 1, three sets of light emitting elements 1a, reflectors 1b, and lenses 1c are provided in one light emitting element module 1, but in the second embodiment, In the illuminating device, it is also possible to provide a single light emitting element module 1 with an arbitrary number of light emitting elements 1a, reflectors 1b, and lenses 1c other than three.

  FIG. 2 is a view showing a light distribution pattern of light emitted from the light emitting element module 1 shown in FIG. 2 corresponds to the rear side of the light emitting element module 1 shown in FIG. 1 (lower left side of FIG. 1C), and the right side of FIG. 2 shows the front side of the light emitting element module 1 shown in FIG. 2 corresponds to the right side of the light-emitting element module 1 shown in FIG. 1 (lower right side of FIG. 1C), and the lower side of FIG. 2 corresponds to the upper right side of FIG. 1 corresponds to the left side of the light emitting element module 1 shown in FIG. 1 (the upper left side of FIG. 1C).

  In the illumination device of the first embodiment, as shown in FIGS. 1 and 2, the left-right direction of the light-emitting element module 1 (the front-back side direction of FIG. 1A, the left-right direction of FIG. 1 (C) in the upper left-lower right direction, the left / right direction in FIG. 1 (D), the up / down direction in FIG. 2), the degree of light collection is the front-rear direction of the light emitting element module 1 (the left / right direction in FIG. The front-back direction in FIG. 1B, the upper right-lower left direction in FIG. 1C, the up-down direction in FIG. 1D, and the left-right direction in FIG. The condensing characteristic of the lens 1c is set.

  In other words, in the illuminating device of 1st Embodiment, as shown in FIG. 2, the light distribution pattern of the light irradiated from the light emitting element module 1 is the left-right direction rather than the front-back direction (left-right direction of FIG. 2) ( It is set to be long in the vertical direction of FIG.

  3 and 4 are views showing a mounting member 2 to which a plurality of the light emitting element modules 1 shown in FIG. 1 are attached, and a lamp umbrella 3 for covering the plurality of light emitting element modules 1 and the attaching members 2. Specifically, FIG. 3A is a front view of the mounting member 2 and the lamp umbrella 3, FIG. 3B is a bottom view of the mounting member 2 and the lamp umbrella 3, and FIG. 4A is a left side surface of the lamp umbrella 3. FIG. 4 and FIG. 4B are left side views of the attachment member 2 as seen through a part of the lamp umbrella 3.

  In the illuminating device of 1st Embodiment, as shown to FIG. 3 (A) and FIG. 3 (B), the attachment member 2 has 18 divisions 2-1, 2-2, 2-3, 2-4. 2-5, 2-6, 2-7, 2-8, 2-9, 2-10, 2-11, 12-12, 2-13, 2-14, 2-15, 2-16, 2- The light-emitting element module 1 (1-1, 1-2, 1-3, 1-4, 1) shown in FIG. -14, 1-7, 1-8, 1-9, 1-10, 1-12, 1-13, 1-15, 1-16, 1-18) are attached.

  Specifically, as shown in FIGS. 3A and 3B, the section 2-1, the section 2-2, and the section 2-3 of the attachment member 2 are bent in two stages, It is formed in a concave shape (specifically, a concave shape when viewed from below). As a result, the light emitting element module 1-1 attached to the section 2-1, the light emitting element module 1-2 attached to the section 2-2, and the light emitting element module 1-3 attached to the section 2-3. However, they are oriented in different directions.

  3A and 3B, the section 2-4, the section 2-5, and the section 2-6 of the attachment member 2 are bent in two stages to form a concave shape ( In detail, it is formed in a concave shape when viewed from below. As a result, the light emitting element module 1-4 attached to the section 2-4 and the light emitting element module 1-6 attached to the section 2-6 are directed in different directions. Furthermore, the angle at which the sections 2-1 and 2-3 are bent with respect to the section 2-2 of the mounting member 2 and the angle at which the sections 2-4 and 2-6 are bent with respect to the section 2-5 of the mounting member 2 And are set to different values. As a result, the light emitting element module 1-4 attached to the section 2-4 and the light emitting element module 1-6 attached to the section 2-6 include the light emitting element modules 1-1, 1-2, 1-3. Both are oriented in different directions.

  Further, as shown in FIGS. 3A and 3B, the section 2-7, the section 2-8, and the section 2-9 of the attachment member 2 are bent in two stages to form a concave shape ( In detail, it is formed in a concave shape when viewed from below. As a result, the light emitting element module 1-7 attached to the section 2-7, the light emitting element module 1-8 attached to the section 2-8, and the light emitting element module 1-9 attached to the section 2-9 Are directed in different directions. Further, as shown in FIGS. 3B and 4B, the section 2-5 and the section 2-8 of the mounting member 2 are convex (specifically, convex when viewed from below). Is bent. As a result, the light emitting element module 1-7 attached to the section 2-7, the light emitting element module 1-8 attached to the section 2-8, and the light emitting element module 1-9 attached to the section 2-9 are The light emitting element modules 1-1, 1-2, 1-3, 1-4, and 1-6 are oriented in different directions.

  3A and 3B, the section 2-10, the section 2-11, and the section 2-12 of the attachment member 2 are bent in two stages to form a concave shape ( In detail, it is formed in a concave shape when viewed from below. As a result, the light emitting element module 1-10 attached to the section 2-10 and the light emitting element module 1-12 attached to the section 2-12 are oriented in different directions. Furthermore, the angle at which the sections 2-7 and 2-9 are bent with respect to the section 2-8 of the mounting member 2, and the angle at which the sections 2-10 and 2-12 are bent with respect to the section 2-11 of the mounting member 2 And are set to different values. As a result, the light emitting element module 1-10 attached to the section 2-10 and the light emitting element module 1-12 attached to the section 2-12 include the light emitting element modules 1-1, 1-2, 1-3. , 1-4, 1-6, 1-7, 1-8, 1-9 are directed in different directions.

  Further, as shown in FIGS. 3A and 3B, the section 2-13, the section 2-14, and the section 2-15 of the attachment member 2 are bent in two stages to form a concave shape ( In detail, it is formed in a concave shape when viewed from below. As a result, the light emitting element module 1-13 attached to the section 2-13 and the light emitting element module 1-15 attached to the section 2-15 are oriented in different directions. Further, as shown in FIGS. 3B and 4B, the section 2-11 and the section 2-14 of the mounting member 2 are convex (specifically, convex when viewed from below). Is bent. As a result, the light emitting element module 1-13 attached to the section 2-13 and the light emitting element module 1-15 attached to the section 2-15 include the light emitting element modules 1-1, 1-2, 1-3. , 1-4, 1-6, 1-7, 1-8, 1-9, 1-10, 1-12 are directed in different directions.

  As shown in FIGS. 3A and 3B, the section 2-16, the section 2-17, and the section 2-18 of the attachment member 2 are bent in two stages to form a concave shape ( In detail, it is formed in a concave shape when viewed from below. As a result, the light emitting element module 1-16 attached to the section 2-16 and the light emitting element module 1-18 attached to the section 2-18 are directed in different directions. Furthermore, the angle at which the sections 2-13 and 2-15 are bent with respect to the section 2-14 of the mounting member 2, and the angle at which the sections 2-16 and 2-18 are bent with respect to the section 2-17 of the mounting member 2 And are set to different values. As a result, the light emitting element module 1-16 attached to the section 2-16 and the light emitting element module 1-18 attached to the section 2-18 include the light emitting element modules 1-1, 1-2, 1-3. , 1-4, 1-6, 1-7, 1-8, 1-9, 1-10, 1-12, 1-13, 1-15 are directed in different directions.

  FIG. 5 is an overall view of the illumination device 10 according to the first embodiment. Specifically, FIG. 5A is a front view of the lighting device 10 of the first embodiment, and FIG. 5B is a left side view of the lighting device 10 of the first embodiment.

  In FIG. 5, reference numeral 4 denotes a support for supporting the mounting member 2 shown in FIGS. 1-1R shows the right edge (upper edge of FIG. 2) of the light distribution pattern of the light emitted from the light emitting element module 1-1 shown in FIGS. 3 (A) and 3 (B). 1-3L shows the left edge part (lower edge part of FIG. 2) of the light distribution pattern of light emitted from the light emitting element module 1-3 shown in FIGS. 3 (A) and 3 (B).

  In FIG. 5, L1-2 indicates the main optical axis of the light-emitting element module 1-2 shown in FIGS. 3 (A), 3 (B), and 4 (B). L1-8 indicates the main optical axis of the light-emitting element module 1-8 shown in FIGS. 3A, 3B, and 4B. θ1-2 represents an angle formed between the main optical axis L1-2 of the light emitting element module 1-2 and the horizontal plane HL (see FIG. 4B). θ1-8 represents an angle formed by the main optical axis L1-8 of the light emitting element module 1-8 and the horizontal plane HL (see FIG. 4B). 1-2F indicates a front edge portion (right edge portion in FIG. 2) of a light distribution pattern of light emitted from the light emitting element module 1-2. Reference numeral 1-16B denotes a rear edge portion (left edge portion in FIG. 2) of a light distribution pattern of light emitted from the light emitting element module 1-16 shown in FIGS. 3 (A) and 3 (B).

  In the illuminating device 10 of the first embodiment, as shown in FIGS. 3 to 5, the attachment member 2 is attached to the support column 4 through a part of the lamp umbrella 3, but the illumination of the third embodiment is used. In the apparatus 10, instead, the attachment member 2 can be directly attached to the column 4, or the attachment member 2 can be attached to the column 4 via a member other than the lamp umbrella 3.

  In the illuminating device 10 of 1st Embodiment, as shown to FIG. 3 (A), FIG. 3 (B), FIG. 4 (B), and FIG. 5 (B), the front end side (front side) of the attachment member 2 (FIG. 3A, the upper side of FIG. 3B, the right side of FIG. 4B, the right side of FIG. 5B, the main optical axis L1-2 of the light-emitting element module 1-2 attached And the horizontal plane HL (see FIG. 4B) is an angle θ1-2 between the rear side of the light emitting element module 1-2 (the base side of the mounting member 2) (the lower side of FIG. 3A, FIG. B) lower side, left side of FIG. 4B, left side of FIG. 5B) main optical axis L1-8 and horizontal plane HL of the light emitting element module 1-8 (see FIG. 4B) The mounting member 2 is bent in two stages so as to be smaller than the angle θ1-8 between the two and is formed in a convex shape (specifically, a convex shape when viewed from below). Yes.

  In other words, in the illumination device 10 of the first embodiment, as shown in FIG. 4B, the attachment member 2 is bent in two stages in the front-rear direction (left-right direction in FIG. 4B). As a result, the angle θ1-2 formed by the main optical axis L1-2 of the light emitting element module 1-2 attached to the front end side (right side in FIG. 4B) of the attachment member 2 and the horizontal plane HL is the light emitting element. From the angle θ1-8 formed by the main optical axis L1-8 of the light emitting element module 1-8 attached to the base side (left side of FIG. 4B) of the attachment member 2 from the module 1-2 and the horizontal plane HL. Is also getting smaller.

  In detail, in the illuminating device 10 of 1st Embodiment, as shown to FIG. 4 (B) and FIG. 5, the front end side (right side of FIG. 4 (B), right side of FIG. 5 (B) of the attachment member 2 The main optical axis L1-2 of the light emitting element module 1-2 attached to the portion) is directed to the position P1-2 away from the illumination device 10, and the base side of the attachment member 2 from the light emitting element module 1-2. The main optical axis L1-8 of the light emitting element module 1-8 attached to the portion (left side of FIG. 4B, left side of FIG. 5B) is directed to a position P1-8 close to the illumination device 10. It has been.

  Therefore, according to the illumination device of the first embodiment, the light emitting element modules 1-1, 1-2, 1-3, 1-4, 1-6, 1-7, 1-8, 1-9, 1 −10, 1-12, 1-13, 1-15, 1-16, 1-18 can be irradiated at a wide angle in the front-rear direction of the illumination device 10 (left-right direction in FIG. 5B). .

  In other words, according to the illumination device 10 of the first embodiment, both the position near the illumination device 10 and the position away from the illumination device 10 on the front side of the illumination device 10 (the right side in FIG. 5B). Can be brightly illuminated.

  Specifically, when the lighting device 10 of the first embodiment is installed at the end of a road, the road surface at a position close to the lighting device 10 in the lane direction of the road (the left-right direction in FIG. 5B) and Both of the road surfaces away from the illumination device 10 can be illuminated brightly.

  Moreover, in the illuminating device 10 of 1st Embodiment, as shown to FIG. 4 (B) and FIG. 5 (B), it attached to the part of the front end side (right side of FIG. 4 (B)) of the attachment member 2. As shown in FIG. Since the main optical axis L1-2 of the light emitting element module 1-2 is directed to the position P1-2 away from the lighting device 10, the portion on the base side (left side in FIG. 4B) of the mounting member 2 The light emitting element module (for example, the light emitting element modules 1-16, 1-18, etc.) attached to the light emitting element module emits light from the light emitting element module rather than being directed to the position P1-2 away from the illumination device 10. The optical path to the position P1-2 can be shortened, and as a result, the position P1-2 away from the illumination device 10 can be illuminated brightly.

  Furthermore, in the illumination device 10 of the first embodiment, as shown in FIGS. 1A and 1C, a lens 1c for condensing the light emitted from the light emitting element 1a is provided. . Further, as shown in FIG. 2, the light collection degree in the left-right direction (vertical direction in FIG. 2) of the illumination device 10 is smaller than the light collection degree in the front-back direction (left-right direction in FIG. 2) of the illumination device 10. That is, the lens 1c has a lateral dimension (vertical dimension in FIG. 2) of the light distribution pattern of light emitted from the light emitting element module 1 larger than a longitudinal dimension (horizontal dimension in FIG. 2). Condensation characteristics are set.

  Therefore, according to the illuminating device 10 of 1st Embodiment, it is light-emitting, suppressing the left-right direction dimension (the left-right direction dimension of FIG. 1 (B), the left-right direction dimension of FIG. 1 (D)) of the light emitting element module 1 small. The light from the element module 1 can be irradiated at a wide angle in the left-right direction of the lighting device 10 (left-right direction in FIG. 5A). Therefore, according to the illumination device 10 of the first embodiment, the plurality of light emitting element modules 1 (1-1, 1-2, 1-3, 1-4, 1-6, 1-7, 1-8 , 1-9, 1-10, 1-12, 1-13, 1-15, 1-16, 1-18) of the mounting member 2 to which the mounting member 2 is mounted (the horizontal dimension in FIG. 3A) The light from the light-emitting element module 1 can be irradiated in a wide-angle direction in the left-right direction of the lighting device 10 (left-right direction in FIG. 5A) while keeping the size in the left-right direction in FIG.

  That is, according to the illuminating device 10 of 1st Embodiment, as shown to FIG. 3 (A), FIG. 3 (B), and FIG. 5 (A), several light emitting element module 1 (1-1, 1-). 2,1-3, 1-4, 1-6, 1-7, 1-8, 1-9, 1-10, 1-12, 1-13, 1-15, 1-16, 1-18) In addition, the light from the light emitting element module 1 is transmitted in the left-right direction (FIG. 5A) of the lighting device 10 while suppressing the amount of the mounting member 2 protruding from the support column 4 in the left-right direction (left-right direction in FIG. 5A). It is possible to irradiate at a wide angle in the left-right direction).

  As shown in FIGS. 3 (A) and 3 (B), if the same number of light emitting element modules 1 as the number of sections (18) of the attachment member 2 are attached to the attachment member 2, the section 2-2 The light from the light emitting element module 1-2 attached to the section 2-8 is overlapped with the light from the light emitting element module 1-2 attached and the light from the light emitting element module 1 attached to the section 2-5. And the light from the light emitting element module 1 attached to the section 2-11 overlap, and the light from the light emitting element modules 1-13 and 1-15 attached to the sections 2-13 and 2-15 and the section 2 The light from the light emitting element module 1 attached to -14 overlaps, the light from the light emitting element modules 1-16 and 1-18 attached to the sections 2-16 and 2-18, and the section 2-17 And light from the light emitting element module 1 that is Attach will overlap.

  In view of this point, in the illuminating device 10 of the first embodiment, as shown in FIGS. 3A and 3B, the light from the light emitting element module 1-2 attached to the section 2-2 In order to avoid the light from the light emitting element module 1 attached to the section 2-5 from overlapping, the light emitting element module 1 is not attached to the section 2-5. Moreover, in order to avoid that the light from the light emitting element module 1-8 attached to the division 2-8 overlaps with the light from the light emitting element module 1 attached to the division 2-11, the division 2 The light emitting element module 1 is not attached to -11. Furthermore, the light from the light emitting element modules 1-13 and 1-15 attached to the sections 2-13 and 2-15 and the light from the light emitting element module 1 attached to the sections 2-14 overlap. In order to avoid this, the light emitting element module 1 is not attached to the section 2-14. In addition, the light from the light emitting element modules 1-16 and 1-18 attached to the sections 2-16 and 2-18 and the light from the light emitting element module 1 attached to the sections 2-17 overlap. In order to avoid this, the light emitting element module 1 is not attached to the section 2-17.

  That is, in the illuminating device 10 of the first embodiment, a smaller number (14) of light emitting element modules 1 than the number of sections (18) of the attachment member 2 are attached to the attachment member 2.

  Therefore, according to the illuminating device 10 of 1st Embodiment, the number of the light emitting element modules 1 can be reduced, without reducing the performance of the whole illuminating device. As a result, according to the lighting device 10 of the first embodiment, it is possible to reduce the manufacturing cost and the operating cost of the lighting device 10 without reducing the performance of the entire lighting device.

  In other words, in the illuminating device 10 of the first embodiment, a larger number of sections than the number of the light emitting element modules 1 are formed in the mounting member 2. Therefore, according to the lighting device 10 of the first embodiment, the characteristics of the entire lighting device can be changed by changing the section where the light emitting element module 1 is attached, that is, by changing the position where the light emitting element module 1 is attached. Can be easily changed. That is, the characteristics of the entire lighting device can be easily changed according to the situation where the lighting device 10 is installed.

  In the illuminating device 10 of 1st Embodiment, as shown to FIG. 3 (A) and FIG.3 (B), the 14 light emitting element modules 1 are attached to the attachment member 2 which has 18 divisions. However, in the illumination device of the fourth embodiment, instead of attaching any number of light emitting element modules 1 other than 14 to the attachment member 2 having an arbitrary number of sections larger than the number of light emitting element modules 1. Is also possible.

  In detail, in the illuminating device 10 of 1st Embodiment, the area | region irradiated with the one light emitting element module 1 and the irradiation area | region of the whole illuminating device are not made to correspond substantially, but one light emitting element. The area irradiated by the module 1 is made smaller than the irradiation area of the entire lighting device.

  More specifically, in the lighting device 10 of the first embodiment, the irradiation area of the entire lighting device is divided into a plurality of small areas, and the irradiation area of one light emitting element module 1 is assigned to one small area. Yes. In addition, an overlapping portion is provided in the irradiation region of two adjacent light emitting element modules 1.

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

It is the figure which showed the light emitting element module 1 which comprises a part of illuminating device of 1st Embodiment. It is the figure which showed the light distribution pattern of the light irradiated from the light emitting element module 1 shown in FIG. FIG. 2 is a view showing a mounting member 2 to which a plurality of light emitting element modules 1 shown in FIG. 1 are attached, and a lamp umbrella 3 for covering the plurality of light emitting element modules 1 and the attaching member 2. FIG. 2 is a view showing a mounting member 2 to which a plurality of light emitting element modules 1 shown in FIG. 1 are attached, and a lamp umbrella 3 for covering the plurality of light emitting element modules 1 and the attaching member 2. It is a general view of the illuminating device 10 of 1st Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Light emitting element module 1a Light emitting element 1b Reflector 1c Lens 1d Thermal interface material 1e Housing 1e1 Fin 1f Cover 2 Mounting member 3 Lamp umbrella 4 Prop 10 Illumination device

Claims (4)

  A light-emitting element module having a light-emitting element, an attachment member for attaching the plurality of light-emitting element modules, and a support member for supporting the attachment member, and the plurality of light-emitting element modules attached to the attachment member In the lighting device in which the mounting member is bent in a plurality of stages so that the light of the light is directed in a plurality of different directions, the main optical axis and the horizontal plane of the light emitting element module attached to the tip side portion of the mounting member The mounting member is bent in a plurality of stages such that the angle formed by the main optical axis of the light emitting element module mounted on the base portion of the mounting member and the horizontal plane is smaller. A lighting device.   The main optical axis of the light emitting element module attached to the tip side portion of the attachment member is directed to a position away from the illumination device on the front side of the illumination device, and attached to the base side portion of the attachment member The lighting device according to claim 1, wherein the main optical axis of the light emitting element module is directed to a position near the lighting device on the front side of the lighting device.   A lens for condensing light emitted from the light emitting element is provided, and the condensing characteristic of the lens is such that the degree of condensing in the left-right direction of the lighting device is smaller than the degree of condensing in the front-rear direction of the lighting device The lighting device according to claim 2, wherein   The lighting device according to claim 3, wherein the mounting member is divided into a plurality of sections, and a smaller number of light emitting element modules than the number of sections of the mounting member are mounted on the mounting member.

Images