JP2013149529A - Lens body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lens body capable of attaining light emission appearance with rich design performance.SOLUTION: Light from a second light source 12B is emitted from a second emitting surface 24f close to a first light source 12A by an action of a second lens body 24 and the close second emitting surface 24f emits light with an emission color of the second light source 12B. On the other hand, light from the first light source 12A is emitted from a first emitting surface 22f which is far from the first light source 12A by an action of a first lens body 22 and the far first emitting surface 22f emits light with an emission color of the first light source 12A.

Description

  The present invention relates to a lens body, and more particularly, to a lens body capable of realizing a luminous appearance with a rich design.

  Conventionally, there has been proposed a lens body that captures light emitted from one light source, changes the path of the captured light, and emits light from each of a plurality of light exit surfaces arranged around the light source (for example, a patent) Reference 1).

  FIG. 8A and FIG. 8B are examples of conventional lens bodies.

  As shown in FIGS. 8A and 8B, the conventional lens body 200 is disposed on the optical axis AX of the light source 300, and a light incident unit 210 into which light from the light source 300 enters, The lens unit 220 includes reflection surfaces 221 and 222 that change the path of light from the light source 300 that has entered from the unit 210 and a light exit surface 223 that emits light from the light source 300 whose path has been changed. . The lens unit 220 is arranged at a position rotated by 60 ° about the optical axis AX of the light source 300 (6 in total).

  In the lens body 200 having the above-described configuration, the light emitted from the light source 300 enters the lens body 200 from the light incident portion 210, is reflected twice by the reflection surfaces 221 and 222, changes the course, and the lens. The light travels through the portions 220 (6 in total) and exits from the respective light exit surfaces 223.

Japanese Patent No. 4433498

  However, in the lens body 200 configured as described above, the light exit surface 223 is arranged at a position corresponding to each vertex of the regular hexagon when viewed from the front, so that it can be visually recognized as a unit with a sense of unity. Since the light from the same light source 300 is emitted from all the light exit surfaces 223, all the light exit surfaces 223 emit light in the same color, and as a result, the monotonous light emission appearance with poor design is obtained. There is.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a lens body capable of realizing a light-emitting appearance rich in design.

  In order to solve the above-mentioned problem, the invention according to claim 1 is directed to a first light incident part and a second light incident part disposed on the optical axes of the first light source and the second light source, respectively, having optical axes parallel to each other. A first lens portion extending from the first light incident portion in the optical axis direction of the first light source, and substantially orthogonal to the optical axis of the second light source from the first lens portion via the first reflecting surface. A second lens portion extending in a direction, a third lens portion extending in the optical axis direction of the first light source from a first position of the second lens portion via a second reflecting surface, and the third lens portion A first lens body including a first light exit surface, and a fourth lens portion extending from the second light incident portion to an optical axis direction of the second light source and to a position before the second lens portion. A fifth lens portion extending from the fourth lens portion through a third reflecting surface in a direction substantially perpendicular to the optical axis of the first light source, After extending in the same direction as the third lens part from the second position closer to the first light incident part than the first position among the five lens parts through the fourth reflecting surface, and intersecting the second lens part, And a second lens body including a sixth lens portion extending in the same direction as the third lens portion, and a second light exit surface which is a tip surface of the sixth lens portion. The first reflecting surface is a reflecting surface that internally reflects the light from the first light source that has entered from the first light incident portion toward the second reflecting surface, and the second reflecting surface is the first reflecting surface. A reflection surface that internally reflects reflected light from the reflection surface toward the first light exit surface, and the third reflection surface receives light from the second light source incident from the second light incident portion, A reflective surface that internally reflects toward the fourth reflective surface, wherein the fourth reflective surface reflects reflected light from the third reflective surface; Towards 2 light emitting surface, characterized in that a reflective surface for internally reflecting.

  In the conventional lens body, light from the light source is emitted from a light exit surface close to the light source (see, for example, the light exit surface 223 in FIGS. 8A and 8B), and the light exit surface close to the light source. In general, light was emitted in the emission color.

  On the other hand, according to the first aspect of the present invention, the light from the second light source is emitted from the second light exit surface near the first light source by the action of the second lens body, and the second light exit surface near the second light exit surface. Emits light in the emission color of the second light source, while light from the first light source is emitted from the first light emitting surface far from the first light source by the action of the first lens body, and the first light emitting surface far from the first light emitting surface is the first light emitting surface. It is possible to achieve a light-emitting appearance that is rich in design and emits light in the light-emitting color of the light source.

  According to a second aspect of the present invention, in the first aspect of the invention, the fifth lens unit is a direction substantially orthogonal to the optical axis of the first light source from the fourth lens unit through a third reflecting surface. It extends through the air layer.

  According to the second aspect of the present invention, even when an air layer (space) is formed in the middle of the fifth lens portion for molding reasons when the lens body is integrally molded using a mold, the second Due to the action of the lens body, light from the second light source is emitted from the second light exit surface close to the first light source, and the near second light exit surface emits light in the emission color of the second light source. By the action, light from the first light source is emitted from the first light emitting surface far from the first light source, and the distant first light emitting surface emits light in the emission color of the first light source, thereby realizing a light emitting appearance rich in design. It becomes possible.

  The invention according to claim 3 is the invention according to claim 1 or 2, comprising a plurality of the first lens body, the second lens body, and the second light incident portion, and the plurality of first lenses. The first light exit surface of at least one of the first lens bodies and the second light exit surfaces of the plurality of second lens bodies are arranged at positions corresponding to the sides of the N-gon in front view, respectively. A light emitting surface of the mold is formed.

  According to the third aspect of the present invention, by combining the first light exit surface of at least one first lens body and the second light exit surfaces of a plurality of second lens bodies, the unit can be visually recognized as a unit with a sense of unity. It is possible to constitute an N-shaped light emitting surface capable of satisfying the requirements. In addition to this, by using light sources with different emission colors as the first light source and the second light source, it is possible to realize a light-emitting appearance rich in design that emits light with different emission colors on each side of the N-shaped light emitting surface. It becomes possible to do.

  According to a fourth aspect of the present invention, in the first or second aspect of the present invention, the first lens body, the second lens body, and the second light incident portion are provided in a plurality, and the plurality of second lenses. Each of the second light-emitting surfaces of the body is arranged at a position corresponding to each side of the N-gon when viewed from the front, and constitutes an N-shaped light-emitting surface.

  According to the invention described in claim 4, by combining the second light emitting surfaces of the plurality of second lens bodies, an N-square light emitting surface that can be viewed as a unit with a sense of unity is formed. Is possible. In addition to this, by using light sources with different emission colors as the first light source and the second light source, it is possible to realize a light-emitting appearance rich in design that emits light with different emission colors on each side of the N-shaped light emitting surface. It becomes possible to do.

  As described above, according to the present invention, it is possible to provide a lens body capable of realizing a luminous appearance with a rich design.

It is a front view of the lamp 10 using the lens body 14 which is one Embodiment of this invention. It is AA sectional drawing of the lamp 10 shown in FIG. It is BB sectional drawing of the lamp 10 shown in FIG. It is the front view which extracted a part of lamp 10 (lens body 14) shown in FIG. It is an example of the area | region (The 1st light emission surface 22f of each 1st lens body 22 (total 6 pieces)) where the light from the 1st light source 12A which entered into the lens body 14 radiate | emits. An example of a region (second light exit surface 24f of each of the second lens bodies 24 (five in total)) from which light from the second light source 12B (second light sources 12B _{1 to} 12B ₅ ) entering the lens body 14 is emitted. It is. This is an example in which the third lens portion 22e and another third lens portion 22e disposed adjacent to the third lens portion 22e are integrally formed via a connecting portion 38. (A) The front view of the conventional lens body 200, (b) AA sectional drawing (BB sectional drawing, CC sectional drawing is also the same) of the lens body 200 shown to Fig.8 (a).

  Hereinafter, a lens body according to an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a front view of a lamp 10 using a lens body 14 according to an embodiment of the present invention, FIG. 2 is a cross-sectional view taken along line AA of the lamp 10 shown in FIG. 1, and FIG. 3 is a lamp 10 shown in FIG. FIG. 4 is a front view of a part of the lamp 10 (lens body 14) shown in FIG.

As shown in FIGS. 1 to 3, the lamp 10 of the present embodiment includes a plurality of light sources 12 (12 </ b> A, 12 </ b> B _{1 to} 12 </ b> B ₆ ), a lens body 14, and the like.

  The plurality of light sources 12 are light sources that emit visible light, and are, for example, general semiconductor light emitting elements such as LEDs (light emitting diodes) and LDs (laser diodes), incandescent bulbs, and other light sources. In the present embodiment, a plurality of LEDs having different emission colors are used as the plurality of light sources 12.

  As shown in FIG. 4, the plurality of light sources 12 are respectively arranged at the centers of a plurality of regular hexagons arranged in a state where the sides are adjacent to each other. The plurality of light sources 12 are arranged on a substrate 32 fixed to the upper surface of the support member 30 with their respective light emitting surfaces oriented in the same direction (upward in FIG. 2) and with their optical axes parallel to each other. Has been implemented.

As shown in FIGS. 2 and 3, the lens body 14 includes a plurality of light incident portions 16 (16 </ b> B _{1 to} 16 </ b> B ₆ ), a first lens body 22, a second lens body 24, and the like.

  The lens body 14 may be integrally formed by injecting a transparent resin (acrylic, polycarbonate, or the like) into a mold, cooling, and solidifying, or each part (for example, the light incident part 16 or the first lens body). 22 and the second lens body 24) may be molded as individual parts and combined to form a single unit. The material of the lens body 14 may be, for example, glass other than a transparent resin (such as acrylic or polycarbonate).

Hereinafter, for convenience, in FIG. 4, the central light source is referred to as a _first light source 12 </ b> A, and the _six light sources arranged around the light source are referred to as second light sources 12 </ b> B _{1 to} 12 </ b> B ₆ . The optical axis of the first light source 12A (center axis) called the optical axis AX _1, referred to the optical axis of the second light source _12B 1 _{~12B 6} (center axis) and the optical axis AX _2. Further, the light input portion disposed on the optical axis of the _first light source 12A is referred to as a first light input portion 16A, the second light source _{12B (12B} 1 _{~12B 6)} incident arranged on the optical axis ₂ of This part is referred to as a second light incident part 16B (16B _{1 to} 16B ₆ ).

As shown in FIGS. 2 and 3, the lens body 14 is a light shielding member that extends in the direction of the optical axis from the periphery of each of the light sources 12 </ b> A and the second light sources 12 </ b> B (12 </ b> B _{1 to} 12 </ b> B ₆ ) on the upper surface of the support member 30. It is fixed and supported at the tip of the cylindrical portion 34. The lens body 14 and the support member 30 to which the lens body 14 is fixed are housed in a case 36 and fixed to the lens body 14 by known means such as screwing.

The first light incident portion 16A, by the lens member 14 is supported by a support member 30 (cylindrical portion 34) as described above, it is disposed on the optical axis AX ₁ of the first light source 12A. Similarly, the second light incident section 16B (16B _{1 to} 16B ₆ ) is supported by the second light source 12A (12B _{1 to} 12B) by the lens body 14 being supported by the support member 30 (cylinder section 34) as described above. ₆₎ is disposed on the optical axes AX _2.

Each light entering part _{16A, 16B (16B 1 ~16B 6} ) have the same configuration. Hereinafter, the configuration of each of the light incident portions 16A and 16B (16B _{1 to} 16B ₆ ) will be described taking the _first light incident portion 16A as an example.

  The first light incident portion 16A includes a central light incident portion 18, a peripheral light incident portion 20, and the like.

The central light incident portion 18 converts light from the first light source 12A emitted from the first light source 12A in a narrow-angle direction with respect to the optical axis AX ₁ (central axis) into a light beam parallel to the optical axis AX ₁ . The lens unit to be converted is, for example, a lens surface convex toward the first light source 12A.

Peripheral light incident portion 20, a lens unit that converts the parallel rays of light emitted to the wide angle direction with respect to the optical axis AX ₁ of the first light source 12A with respect to the optical axis AX _1, for example, a central light entering A cylindrical lens surface 20a that extends from the periphery of the portion 18 toward the first light source 12A and surrounds the outer periphery of the first light source 12A in a circle, and is disposed on the outer periphery of the cylindrical lens surface 20a. a reflecting surface of a paraboloid of revolution into a parallel beam to the optical axis AX ₁ and the light internally reflected from the first light source 12A for incident and refracted from the surface 20a to the lens body 14.

Figure 2, as shown in FIG. 3, the first lens element 22 includes a first lens portion 22a extending from the first light input portion 16A to the optical axis AX ₁ direction of the first light source 12A, the first lens unit 22a first the second lens portion 22c extending in a direction substantially perpendicular to the optical axis AX ₂ of the second light source 12B through the first reflecting surface 22b, from the first position P1 of the second lens portion 22c via the second reflecting surface 22d the third lens portion 22e extending in the optical axis AX ₁ direction of the first light source 12A, and includes a first light exit surface 22f and the like is the tip surface of the third lens unit 22e.

In the present embodiment, as shown in FIGS. 2, 3, the first lens 22 is a position rotated by 60 ° around the optical axis AX ₁ of the first light source 12A, the first light source 12A and this is disposed between the second light source _12B positioned adjacent (12B 1 ～12B ₆₎ to (a total of six). Although not shown, the first lens body 22 is also provided between the first light source 12A and the second light source 12B ₂ (and between the first light source 12A and the second light source 12B ₅ ) as in FIG. Is arranged.

The first reflection surface 22b is a reflection surface that internally reflects the light from the first light source 12A incident from the first light incident portion 16A toward the second reflection surface 22d. For example, the optical axis of the first light source 12A. a flat reflective surface of the triangular arranged angle 45 ° inclined to respect AX _1.

In the present embodiment, the first reflective surface 22b is disposed in a position rotated by 60 ° around the optical axis AX ₁ of the first light source 12A (total of six), constitute the reflecting surface 26 of 6 pyramidal ing.

6-pyramidal reflective surface 26 (first reflective surface 22b) the light from the first light source 12A which is incident from the first light input portion 16A as a parallel light beam, perpendicular to the optical axis AX ₁ of the first light source 12A Internally reflect radially in six directions along the surface.

The second reflecting surface 22d is the reflected light from the first reflecting surface 22b, a reflective surface for internally reflecting toward the first light exit surface 22f, for example, an angle 45 ° with respect to the optical axis AX ₁ of the first light source 12A It is a plane reflecting surface arranged at an angle.

  The second reflection surface 22d internally reflects the reflected light from the first reflection surface 22b as a parallel light beam toward the first light exit surface 22f.

In this embodiment, the second reflecting surface 22d is disposed in a position rotated by 60 ° around the optical axis AX ₁ of the first light source 12A (total of six).

The first light exit surface 22f is a lens surface reflected light from the second reflecting surface 22d is emitted, for example, a rectangular plane perpendicular to the optical axis AX _1.

  The first light exit surface 22f emits the reflected light from the second reflective surface 22d in the normal direction of the first light exit surface 22f. The first light exit surface 22f is not limited to a flat surface, and may be, for example, a concave or convex curved surface or other shapes.

In this embodiment, the first light exit surface 22f, the position of the optical axis AX ₁ was rotated by 60 ° as the center of the first light source 12A (in FIG. 4, the outer adjacent to each side of the regular hexagon arranged in the center Position) (5 in total). In addition, the 1st light emission surface 22f is not arrange | positioned in the outer position adjacent to the one side where the lower right regular hexagon opposes among each side of the regular hexagon arrange | positioned in the center in FIG.

As shown in FIGS. 2 and 3, the second lens body 24 is configured to emit light from the second light incident portion 16B (for example, the second light incident portion 16B ₁ ) to the second light source 12B (for example, the second light source 12B ₁ ). axial AX ₂ direction and the fourth lens unit 24a, which extends to a position before the second lens unit 22c, a direction substantially perpendicular to the optical axis AX ₁ of the fourth lens unit 24a via the third reflecting surface 24b first light source 12A The third lens portion 24c extending through the air layer S and the third lens portion 24c from the second position P2 closer to the first light entrance portion 16A than the first position P1 to the third through the fourth reflecting surface 24d. The second lens portion 22e, which extends in the same direction as the lens portion 22e and intersects the second lens portion 22c, and further extends in the same direction as the third lens portion 22e, is the tip surface of the sixth lens portion 24e. A light exit surface 24f and the like are included.

  The air layer S is a space formed in the middle of the fifth lens portion 24c for molding reasons when the lens body 14 is integrally molded using a mold. In addition, when each part (for example, the light-incidence part 16, the 1st lens body 22, and the 2nd lens body 24) is shape | molded as individual components, and these are combined and the lens body 14 is comprised integrally, it is an air layer. It is possible to configure the fifth lens portion 24c in which S does not exist.

The fifth lens unit 24c, as shown in FIG. 2, with the first light input portion 16A and the second lens portion 22c, and extends in a direction substantially perpendicular to the optical axis AX ₁ of the first light source 12A. That is, the fifth lens unit 24c and the second lens unit 22c, but extends in a direction parallel to each other and are staggered placed in the optical axis AX ₁ direction of the first light source 12A (in FIG. 2, the fifth The lens portion 24c is disposed directly below the second lens portion 22c). The sixth lens portion 24e has the same direction as the third lens portion 22e from the second position P2 closer to the first light incident portion 16A than the first position P1 in the fifth lens portion 24c via the fourth reflecting surface 24d. And crosses the second lens portion 22c (for example, orthogonal), and further extends in the same direction as the third lens portion 22e.

  In the conventional lens body, light from the light source is emitted from a light exit surface close to the light source (see, for example, the light exit surface 223 in FIGS. 8A and 8B), and the light exit surface close to the light source. In general, light was emitted in the emission color.

In contrast, in the present embodiment, as described above, the fifth lens unit 24c and a second lens unit 22c, as well as different levels arranged on the optical axis AX ₁ direction, the sixth lens unit 24e and the second lens Since the portion 22c is crossed, the light from the first light source 12A and the light from the second light source 12B (12B _{1 to} 12B ₆ ) do not overlap, and the second light exit surface 24f close to the first light source 12A The light from the two light sources 12B (12B _{1 to} 12B ₆ ) is emitted, and the near second light exit surface 24f can be caused to emit light in the emission color of the second light source 12B (12B _{1 to} 12B ₆ ). In addition, light from the first light source 12A can be emitted from the first light exit surface 22f far from the first light source 12A, and the far first light exit surface 22f can emit light in the emission color of the first light source 12A. As a result, it is possible to realize a luminous appearance that is rich in design.

In the present embodiment, as shown in FIGS. 2, 3, the second lens 24 is a position rotated by 60 ° around the optical axis AX ₁ of the first light source 12A, the first light source 12A and this Are disposed between the second light sources 12B (12B _{1 to} 12B ₅ ) disposed adjacent to (a total of _five light sources, one less than the first lens body 22). The second lens body 24 is not disposed between the first light source 12A and the second light source 12B ₆ (see FIG. 3). Although not shown, the second lens body 24 is also provided between the first light source 12A and the second light source 12B ₂ (and between the first light source 12A and the second light source 12B ₅ ) as in FIG. Is arranged.

The third reflecting surface 24b receives the light from the second light source 12B (for example, the second light source 12B ₁ ) incident from the second light incident portion 16B (for example, the second light incident portion 16B ₁ ), and the fourth reflecting surface. a reflective surface for internally reflecting toward the 24d, for example, in the second light source 12B (e.g., the second light source 12B ₁₎ triangular planar reflective surface disposed angle 45 ° inclined to the optical axis AX ₂ of is there.

In this embodiment, the third reflecting surface 24b is disposed in a position rotated by 60 ° around the optical axis AX ₂ of the second light source 12B (total of six), constitute the 6-pyramidal reflective surface 28 ing.

6-pyramidal reflective surface 28 (third reflection surface 24b), the second light input portion 16B (e.g., the second light input portion 16B ₁₎ second light source 12B which is incident from the (e.g., the second light source _12B 1) as parallel rays of light from the second light source 12B (e.g., the second light source 12B ₁₎ radially internally reflected in six directions along the plane perpendicular to the optical axis AX ₂ of.

The fourth reflecting surface 24d is a reflecting surface that internally reflects the reflected light from the third reflecting surface 24b toward the second light exiting surface 24f. For example, the light from the second light source 12B (for example, the second light source 12B ₁ ). a flat reflective surface disposed angle 45 ° inclined to with respect to the axis AX _2.

  The fourth reflecting surface 24d internally reflects the reflected light from the third reflecting surface 24b as a parallel light beam toward the second light exiting surface 24f.

In this embodiment, the fourth reflecting surface 24d is (one less total of five than the first lens body 22) disposed in a position rotated by 60 ° around the optical axis AX ₁ of the first light source 12A.

Second light exit surface 24f is a lens surface reflected light from the fourth reflecting surface 24d is emitted, for example, a rectangular plane perpendicular to the optical axis AX _2.

  The second light exit surface 24f emits the reflected light from the fourth reflective surface 24d in the normal direction of the second light exit surface 24f. The second light exit surface 24f is not limited to a flat surface, and may be, for example, a concave or convex curved surface or other shapes.

In this embodiment, the second light exit surface 24f is a position rotated by 60 ° around the optical axis AX ₁ of the first light source 12A (in FIG. 4, the position corresponding to each side of the regular hexagon arranged in the center) (5 in total). In addition, the 2nd light emission surface 24f is not arrange | positioned in FIG. 4 in the position corresponding to the one side where the lower right regular hexagon opposes among each side of the regular hexagon arrange | positioned in the center. At this position, the first light exit surface 22f is arranged. By disposing the first light exit surface 22f (third lens portion 22e) at this position, for example, as shown in FIG. 7, the third lens portion 22e and another third lens disposed adjacent to the third lens portion 22e. The portion 22e can be formed integrally with the connecting portion 38. FIG. 7 shows an example in which the third lens portion 22e and another third lens portion 22e arranged adjacent to the third lens portion 22e are integrally formed via the connecting portion 38.

  The first light exit surface 22f at this position and the second light exit surfaces 24f of the plurality of second lens bodies 24 are respectively arranged at positions corresponding to the sides of the regular hexagon when viewed from the front, and are visually recognized as a unit with a sense of unity. A hexagonal light emitting surface 40 that can be made is configured (see FIG. 4).

  In the lamp 10 using the lens body 14 configured as described above, the light emitted from the first light source 12A follows the next optical path.

  That is, the light emitted from the first light source 12A enters the lens body 14 from the first light incident portion 16A and is reflected twice by the reflection surfaces 22b and 22d of the first lens body 22 (six in total). Thus, the course is changed, and the light exits from each first light exit surface 22f. FIG. 5 shows hatching regions (first light exit surfaces 22f of the first lens bodies 22 (total of six)) from which the light from the first light source 12A entering the lens body 14 is emitted.

  More specifically, the light emitted from the first light source 12A follows the next optical path.

That is, as shown in FIG. 2, the light emitted from the first light source 12A enters the lens body 14 from the first light incident portion 16A. Light the incident is converted into parallel rays by the first light input portion 16A with respect to the central axis AX _1, the first lens unit toward the reflecting surface 26 of the hexagonal pyramid-type (first reflective surface 22b) Proceed through 22a.

6-pyramidal reflective surface 26 (first reflective surface 22b) the light from the first light source 12A which is incident from the first light input portion 16A as a parallel light beam, perpendicular to the optical axis AX ₁ of the first light source 12A Internally reflect radially in six directions along the surface.

  Reflected light (six directions) from the hexagonal pyramidal reflection surface 26 (first reflection surface 22b) travels in the second lens portion 22c toward the second reflection surface 22d.

  The second reflection surface 22d internally reflects the reflected light from the hexagonal pyramidal reflection surface 26 (first reflection surface 22b) toward the first light exit surface 22f as parallel rays.

  The reflected light from the second reflecting surface 22d travels in the third lens portion 22e toward the first light emitting surface 22f and is emitted from the first light emitting surface 22f in the normal direction thereof (see the hatched area in FIG. 5). .

  On the other hand, the light emitted from the second light source 12B follows the next optical path.

That is, light emitted from the second light source 12B (for example, the second light source 12B ₁ ) enters the lens body 14 from the second light incident unit 16B (for example, the second light incident unit 16B ₁ ), The two lens bodies 24 (five in total) are reflected twice by the respective reflecting surfaces 24b and 24d to change the course, and are emitted from the respective second light emitting surfaces 24f. FIG. 6 shows the second light exit surfaces of the regions (second lens bodies 24 (five in total)) from which the light from the second light sources 12B (second light sources 12B _{1 to} 12B ₅ ) entering the lens body 14 is emitted. 24f) is indicated by hatching.

  More specifically, the light emitted from the second light source 12B follows the next optical path.

That is, as shown in FIG. 2, the light emitted from the second light source 12B (for example, the second light source 12B ₁ ) is transmitted from the second light incident part 16B (for example, the second light incident part 16B ₁ ) to the lens body 14. Incident light inside. This incident light is converted into a light beam parallel to the central axis AX ₂ by the second light incident portion 16B (for example, the second light incident portion 16B ₁ ), and is reflected by the hexagonal pyramid-shaped reflection surface 28 (third It advances in the fourth lens portion 24a toward the reflecting surface 24b).

6-pyramidal reflective surface 28 (third reflection surface 24b), the second light input portion 16B (e.g., the second light input portion 16B ₁₎ second light source 12B which is incident from the (e.g., the second light source _12B 1) as parallel rays of light from the second light source 12B (e.g., the second light source 12B ₁₎ radially internally reflected in six directions along the plane perpendicular to the optical axis AX ₂ of.

  Reflected light (six directions) from the hexagonal pyramid-shaped reflecting surface 28 (third reflecting surface 24b) travels in the fifth lens portion 24c (and the air layer S) toward the fourth reflecting surface 24d.

  The fourth reflection surface 24d internally reflects the reflected light from the hexagonal pyramid-shaped reflection surface 28 (third reflection surface 24b) toward the second light exit surface 24f as parallel rays.

  The reflected light from the fourth reflecting surface 24d travels in the sixth lens portion 24e toward the second light emitting surface 24f, and exits from the second light emitting surface 24f in the normal direction thereof (see the hatched area in FIG. 6). .

As described above, according to the lens body 14 of the present embodiment, the second lens body 24 acts from the second light source 12B (12B _{1 to} 12B ₆ ) from the second light exit surface 24f close to the first light source 12A. The light is emitted, and the second light exit surface 24f near the light source emits light of the light emission color of the second light source 12B (12B _{1 to} 12B ₆ ), while the first lens body 22 causes the first far from the first light source 12A. Light from the first light source 12A is emitted from the light exit surface 22f, and the distant first light exit surface 22f emits light in the light emission color of the first light source 12A. .

Further, according to the lens body 14 of the present embodiment, by combining the first light exit surface 22f of the first lens body 22 and the second light exit surfaces 24f of the plurality of second lens bodies 24, as a unit with a sense of unity. A hexagonal light emitting surface 40 that can be visually recognized can be configured. In addition, as the first light source 12A and the second light source 12B (12B _{1 to} 12B ₆ ), a plurality of light sources having different emission colors, for example, the first light source 12A = blue, the second light source 12B ₁ = green, By using two light sources 12B ₂ = yellow, second light source 12B ₃ = purple, second light source 12B ₄ = red, second light source 12B ₅ = light blue, and second light source 12B ₆ = crimson color, a hexagonal light emitting surface 40 is used. Each side (see FIG. 4) (that is, the second light emitting surface 24f (total of 5) and the first light emitting surface 22f (1 total) constituting the hexagonal light emitting surface 40) emit light in different light emission colors. It is possible to realize a luminous appearance that is rich in characteristics (for example, suitable for amusement applications such as gaming machines).

In addition, as the first light source 12A and the second light source 12B (12B _{1 to} 12B ₆ ), a plurality of light sources having the same emission color (or substantially the same) and slightly different emission wavelengths may be used. For example, as the first light source 12A and the second light source 12B (12B _{1 to} 12B ₆ ), a plurality of light sources in which the emission color is in the red range (the red range determined by regulations) and the emission wavelengths are different are used. May be.

  If it does in this way, it will become possible to comprise the lamp 10 suitable for a vehicle lamp (for example, a tail lamp).

  Next, a modified example will be described.

  In the embodiment described above, the example in which the hexagonal light emitting surface 40 is configured by combining the first light emitting surface 22f of one first lens body 22 and the second light emitting surfaces 24f of the plurality of second lens bodies 24 has been described. However, the present invention is not limited to this.

  For example, the hexagonal light emitting surface 40 may be configured by combining the first light exit surfaces 22f of the plurality of first lens bodies 22 and the second light exit surfaces 24f of the plurality of second lens bodies 24. The hexagonal light emitting surface 40 may be configured by combining the first light exit surface 22f of the first lens body 22 and the second light exit surface 24f of one second lens body 24.

  Or you may comprise the hexagonal light emission surface 40 by combining the 2nd light emission surface 24f of the several 2nd lens body 24, without using the 1st light emission surface 22f of the 1st lens body 22. FIG.

  In addition, the light emitting surface 40 is not limited to a hexagonal shape, and an appropriate number of first light emitting surfaces 22f of the first lens bodies 22 and second light emitting surfaces 24f of the second lens bodies 24 are combined to form a triangular shape or a square shape. It is also possible to configure an N-shaped light emitting surface such as a mold.

  In this way, it is possible to configure an N-shaped light emitting surface that can be viewed as a unit with a sense of unity. In addition to this, by using light sources having different emission colors as the first light source 12A and the second light source 12B, each side of the N-shaped light emitting surface emits light with different emission colors and has a good design. Can be realized.

  Moreover, although the said embodiment demonstrated the example which comprises the light-emitting surface 40 of one hexagon (N square type) (refer FIG. 4), this invention is not limited to this.

  For example, as shown in FIGS. 1, 2, and 3, a plurality of light sources 12 (first light source 12 </ b> A, second light source) are respectively disposed at the centers of a plurality of regular hexagons arranged side by side in an adjacent state. 12B) and an appropriate number of light incident portions 16 (first light incident portion 16A, second light incident portion 16B), first lens body 22 and second lens body 24 for each light source 12 in combination. The plurality of hexagonal (N-square) light emitting surfaces 40 can be configured.

  The above embodiment is merely an example in all respects. The present invention is not construed as being limited to these descriptions. The present invention can be implemented in various other forms without departing from the spirit or main features thereof.

10 ... lamp, 12 ... light source, 12A ... first light _{source, 12B (12B 1 ~12B 6)} ... second light source, 12B ₁ light source, 14 ... lens body 16 ... entrance section 16A ... first light input portion, 16B (16B _{1 to} 16B ₆ ) ... second light incident part, 18 ... center light incident part, 20 ... peripheral light incident part, 20a ... lens surface, 22 ... first lens body, 22a ... first lens part, 22b ... First reflection surface, 22c ... second lens portion, 22d ... second reflection surface, 22e ... third lens portion, 22f ... first light exit surface, 24 ... second lens body, 24a ... fourth lens portion, 24b ... first 3 reflective surface, 24c ... 5th lens part, 24d ... 4th reflective surface, 24e ... 6th lens part, 24f ... 2nd light emission surface, 26 ... 6-pyramidal reflective surface 26, 28 ... 6-pyramidal reflective surface , 30 ... support member, 32 ... substrate, 34 ... cylindrical portion, 36 ... case, 40 ... light emitting surface

Claims (4)

A first light incident portion and a second light incident portion disposed on the optical axes of the first light source and the second light source having optical axes parallel to each other;
A first lens portion extending from the first light incident portion in the optical axis direction of the first light source, and a direction substantially perpendicular to the optical axis of the second light source from the first lens portion via the first reflecting surface. A second lens portion that extends, a third lens portion that extends from a first position of the second lens portion through a second reflecting surface in the optical axis direction of the first light source, and a tip of the third lens portion A first lens body including a first light exit surface which is a surface;
A fourth lens portion extending from the second light incident portion to an optical axis direction of the second light source and a position before the second lens portion; and the first light source from the fourth lens portion via a third reflecting surface. A fifth lens portion extending in a direction substantially orthogonal to the optical axis of the second lens portion, and a second position of the fifth lens portion closer to the first light incident portion than the first position via the fourth reflecting surface. A sixth lens portion extending in the same direction as the third lens portion and intersecting the second lens portion, and further extending in the same direction as the third lens portion, and a second surface which is a front end surface of the sixth lens portion. A second lens body including a light exit surface;
With
The first reflection surface is a reflection surface that internally reflects light from the first light source that has entered from the first light incident portion toward the second reflection surface,
The second reflecting surface is a reflecting surface that internally reflects the reflected light from the first reflecting surface toward the first light emitting surface,
The third reflecting surface is a reflecting surface that internally reflects light from the second light source that has entered from the second light incident portion toward the fourth reflecting surface,
The lens body, wherein the fourth reflecting surface is a reflecting surface that internally reflects the reflected light from the third reflecting surface toward the second light emitting surface.   The said 5th lens part is extended through the air layer in the direction substantially orthogonal to the optical axis of a said 1st light source through a 3rd reflective surface from the said 4th lens part. The lens body described. A plurality of the first lens body, the second lens body, and the second light incident section;
The first light exit surface of at least one of the plurality of first lens bodies and the second light exit surface of the plurality of second lens bodies are respectively in positions corresponding to the sides of the N-gon in front view. The lens body according to claim 1, wherein the lens body is arranged to constitute an N-shaped light emitting surface. A plurality of the first lens body, the second lens body, and the second light incident section;
2. The second light exit surfaces of the plurality of second lens bodies are arranged at positions corresponding to the sides of the N-angle when viewed from the front to form an N-angle light-emitting surface. The lens body according to 1 or 2.

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