JP2016105368A - Vehicular lens member and vehicular lighting tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem that in a conventional vehicular lighting tool, a plurality of light-emitting elements and a plurality of reflectors are needed.SOLUTION: This invention includes a light source 4, and a light guide member 5. The light guide member 5 includes an incident surface 50, a primary reflection surface 51, a secondary reflection surface 52, and an emission surface 53. The primary reflection surface 51 is a reflection surface formed by rotating a parabola or a quadratic curve approximate to the parabola having the light source 4 or the vicinity of the light source 4 as a focal point F, with a shaft O2 positioned on a side opposite to a reflection direction of a primary reflection light L3 with respect to the light source 4 as a rotation center. The secondary reflection surface 52 and the emission surface 53 are extended in a direction crossing the reflection direction of the primary reflection light L3. Consequently, with the one light source 4, a belt-like light-emitting surface can be formed on the emission surface 53 without using a plurality of reflectors.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a vehicle lens member that forms a belt-like light emitting surface (light emitting range). The present invention also relates to a vehicular lamp including a vehicular lens member that forms a belt-like light emitting surface.

  2. Description of the Related Art Conventionally, there is a vehicle lamp member that includes a vehicle lens member that forms a belt-like light emitting surface and a vehicle lens member that forms a belt-like light emitting surface (eg, Patent Document 1). Hereinafter, a conventional vehicle lamp will be described. A conventional vehicular lamp includes a plurality of light emitting elements, a plurality of reflectors, and a light guide, and the light guide includes an incident portion, a first reflecting portion, a second reflecting portion, 2 extension parts. In a conventional vehicular lamp, light emitted from a plurality of light emitting elements is reflected by a plurality of reflectors, and the reflected light enters the light guide from the incident portion of the light guide, and the incident light is the first light. The reflection part reflects the inner surface toward the first direction, the light reflected from the inner surface reflects the inner surface toward the front by the second reflection part, and the light reflected from the inner surface is emitted to the outside from the front end surface of the second extension part. To do. As a result, the tip surface of the second extending portion emits light in a band shape, and a band-shaped light emitting surface is formed.

JP 2014-22212 A

  However, the conventional vehicular lamp requires a plurality of light emitting elements and a plurality of reflectors in order to form a belt-like light emitting surface.

  The problem to be solved by the present invention is that a conventional vehicular lamp requires a plurality of light emitting elements and a plurality of reflectors.

  The present invention (invention according to claim 1) is a vehicle lens member, an incident surface for entering light from one light source arranged at a predetermined position into the interior, and incident light from the incident surface A primary reflection surface for primary reflection, a secondary reflection surface for secondary reflection of primary reflected light from the primary reflection surface, and an emission surface for emitting secondary reflected light from the secondary reflection surface to the outside as emitted light, A parabolic curve whose primary reflection surface is focused on the light source or the vicinity of the light source or a quadratic curve approximated to a parabola, with an axis positioned on the opposite side of the reflection direction of the primary reflected light with respect to the light source, The reflecting surface is formed by rotating, and the secondary reflecting surface and the emitting surface are extended in a direction intersecting the reflecting direction of the primary reflected light.

  This invention (the invention according to claim 2) is characterized in that the primary reflection surface is formed of a plurality of parabolas or quadratic curves and a rotation center axis.

  This invention (the invention according to claim 3) is characterized in that the secondary reflection surface is divided into a plurality of parts in the extending direction.

  In the present invention (the invention according to claim 4), a plurality of secondary reflection surfaces and emission surfaces are provided, and the plurality of secondary reflection surfaces and emission surfaces are parallel or substantially parallel to each other. A non-light emitting surface is formed between the emission surfaces.

  This invention (the invention according to claim 5) is characterized in that an optical element for diffusing outgoing light is provided on the outgoing surface.

  According to the present invention (the invention according to claim 6), the lamp housing and the lamp lens that define the lamp chamber, one light source disposed at a predetermined position in the lamp chamber, and the above-described lamp disposed in the lamp chamber. A vehicle lens member according to any one of claims 1 to 5.

  The vehicular lens member and vehicular lamp according to the present invention can primarily reflect a large amount of light on the secondary reflection surface and the emission surface side by the primary reflection surface. As a result, the vehicular lens member and vehicular lamp of the present invention can form a band-like light emitting surface on the exit surface with a single light source and without using a plurality of reflectors. Here, the primary reflection surface is a reflection surface formed by rotating a light source or a parabola with a focus on the vicinity of the light source or a quadratic curve approximated to a parabola around the axis passing through the light source or the vicinity of the light source. The primary reflection in a certain case will be described. In other words, the primary reflection surface in the above case primarily reflects light at approximately 360 ° about the axis. For this reason, a lot of light cannot be reflected once on the belt-like light emitting surface (see the primary reflected light L3A in FIG. 7). On the other hand, in the vehicle lens member and the vehicle lamp according to the present invention, the primary reflection surface has a parabolic curve whose focal point is the light source or the vicinity of the light source or a quadratic curve approximated to a parabola, and the primary reflected light with respect to the light source. This is a reflection surface formed by rotating about an axis located on the opposite side to the reflection direction of the rotation center. For this reason, as shown by the primary reflected light L3 in FIG. 7, a lot of light can be reflected on the belt-like light emitting surface.

FIG. 1 is a front view of a vehicular lamp showing an embodiment of a vehicular lens member and vehicular lamp according to the present invention. FIG. 2 is an enlarged front view showing the vehicle lens member. FIG. 3 is an enlarged rear view showing the vehicle lens member. FIG. 4 is an enlarged longitudinal sectional view (sectional view taken along line IV-IV in FIG. 2) showing the vehicle lens member. FIG. 5 is an enlarged cross-sectional view (a cross-sectional view taken along line VV in FIG. 2) showing the vehicle lens member. FIG. 6 is an enlarged explanatory view showing a belt-like light emission state of upper and lower five steps of the vehicle lens member. FIG. 7 is an enlarged explanatory view showing an optical path in the vehicle lens member.

  Hereinafter, one example of an embodiment (example) of a vehicle lens member and a vehicle lamp according to the present invention will be described in detail with reference to the drawings. In addition, this invention is not limited by this embodiment. 4 and 5, the hatching of the vehicle lens member is omitted.

(Description of Configuration of Embodiment)
Hereinafter, the configuration of the vehicular lens member and the vehicular lamp according to this embodiment will be described. In FIG. 1, reference numeral 1 denotes a vehicular lamp according to this embodiment. The vehicle lamp 1 is, for example, a stop lamp. In FIG. 1, the symbol “U” indicates the upper side of a vehicle (not shown). The symbol “D” indicates the lower side of the vehicle. The symbol “L” indicates the left side of the vehicle. The symbol “R” indicates the right side of the vehicle.

(Description of vehicle lamp 1)
The vehicular lamp 1 constitutes a rear combination lamp and is provided on each of the left and right sides of the rear portion of the vehicle. As shown in FIG. 1, the vehicular lamp 1 includes a lamp housing 2, a lamp lens 3, a single light source 4, and a single light guide member (guide) as a vehicular lens member according to this embodiment. Optical plate, light guide, light guide lens, light frame) 5. One light source 4 and one light guide member 5 constitute a lamp unit of a stop lamp.

  The lamp housing 2 and the lamp lens 3 define a lamp chamber 6. In the lamp chamber 6, the light source 4 and the light guide member 5 are arranged, respectively. The light source 4 and the light guide member 5 are attached to the lamp housing 2 via attachment members (not shown) such as attachment brackets.

  In some cases, an inner panel or the like (not shown) is arranged in the lamp chamber 6 to cover the light source 4 and part of the light guide member 5 and the mounting member. Further, an inner lens or the like (not shown) may be disposed in the lamp chamber 6 to diffuse light from the light guide member 5 (emitted light L5). Further, the lamp lens 3 may be provided with a prism element group for diffusing light (emitted light L5) from the light guide member 5 and an optical element such as a texture. Furthermore, in the lamp chamber 6, in addition to the stop lamp lamp unit constituted by the light source 4 and the light guide member 5, lamp units such as a tail lamp, a turn signal lamp, a backup lamp, and a rear fog lamp are arranged. May have been.

(Description of light source 4)
In this example, the light source 4 is a self-luminous semiconductor light source such as an LED, an OEL, or an OLED (organic EL). The light source 4 includes a substrate (not shown) and a light emitting unit (not shown) made up of one or a plurality of light emitting chips and the like appropriately disposed on the substrate. . The light source 4 is disposed at a predetermined position in the lamp chamber 6. The light source 4 is supplied with power (current) through a connector portion (not shown). The light source 4 may be a light source other than a self-luminous semiconductor type light source, such as an incandescent lamp or a discharge lamp.

(Description of the light guide member 5)
The light guide member 5 is formed of a member having a property of guiding light, in this example, a transparent resin material such as acrylic, PC (polycarbonate), PMMA (polymethyl methacrylate, methacrylic resin), glass, or the like. The light guide member 5 has a vertically long, substantially rectangular plate (or flat plate) shape. The light guide member 5 includes an incident surface 50, a primary reflection surface 51, a secondary reflection surface 52, and an exit surface 53.

  The incident surface 50 is provided at the center of the back surface of the light guide member 5. The incident surface 50 has a circular shape centering on the light source 4 or the vicinity of the light source 4 about an axis O1 that is orthogonal or substantially orthogonal to a light emitting surface (not shown) of the light emitting unit. The incident surface 50 faces the light emitting surface of the light emitting unit of the light source 4. The incident surface 50 allows the light L <b> 1 from the light source 4 to enter the inside of the light guide member 5. The incident surface 50 may be flat or curved.

  The primary reflection surface 51 is provided at an upper portion and a lower portion, respectively, in the central portion of the front surface of the light guide member 5. The primary reflection surface 51 has a parabola with a focal point F near the light source 4 or the vicinity of the light source 4 or a quadratic curve approximated to a parabola of the primary reflected light L3 from the primary reflection surface 51 with respect to the light source 4. It is a reflecting surface formed by rotating about the axis O2 positioned on the opposite side to the reflecting direction, in this example, on the upper side and the lower side, respectively. The primary reflecting surface 51 faces the incident surface 50 and the secondary reflecting surface 52, respectively. The primary reflecting surface 51 primarily reflects the incident light L2 from the incident surface 50 toward the secondary reflecting surface 52 side.

  The primary reflecting surface 51 is formed by a plurality of parabolas or the quadratic curve and the rotation center axis O2. In this example, the upper primary reflection surface 51 and the lower primary reflection surface 51 each have four parabolas (four between small black circles in FIG. 4), as shown in FIG. Alternatively, it is formed from the quadratic curve and the rotation center axis O2. Note that only one upper rotation center axis O2 and lower rotation center axis O2 are shown in FIG. 4, but there are actually three more each. The primary reflecting surface 51 may be formed from one parabola or the quadratic curve and the rotation center axis O2.

  The secondary reflection surface 52 is provided on each of an upper portion and a lower portion of the back surface of the light guide member 5. The secondary reflection surface 52 extends in a direction intersecting the reflection direction of the primary reflected light L3 from the primary reflection surface 51. The secondary reflection surface 52 faces the primary reflection surface 51 and the emission surface 53, respectively. The secondary reflection surface 52 secondarily reflects the primary reflected light L3 from the primary reflection surface 51 to the emission surface 53 side.

  The secondary reflection surface 52 is divided into a plurality in the extending direction. Two secondary reflection surfaces 52 are provided on each of an upper portion and a lower portion of the rear surface of the light guide member 5. The two secondary reflection surfaces 52 on the upper and lower sides are parallel or substantially parallel to each other. The secondary reflection surface 52 may be a flat surface or a curved surface.

  The exit surface 53 is provided on each of an upper part and a lower part of the front surface of the light guide member 5. Similar to the secondary reflection surface 52, the emission surface 53 extends in a direction intersecting the reflection direction of the primary reflected light L <b> 3 from the primary reflection surface 51. The emission surface 53 faces the secondary reflection surface 52. The emission surface 53 causes the secondary reflected light L4 from the secondary reflection surface 52 to be emitted to the outside as emitted light L5.

  Similarly to the secondary reflection surface 52, the emission surface 53 is provided in correspondence with the secondary reflection surface 52, two at each of an upper part and a lower part of the front surface of the light guide member 5. ing. The two outgoing surfaces 53 on the upper and lower sides are parallel or substantially parallel to each other. A non-light emitting surface 54 (refer to the white portion in FIG. 6) is provided between the upper and lower emission surfaces 53. Optical elements 55 for diffusing the emitted light L5 are provided on the two outgoing surfaces 53 on the upper and lower sides. The optical element 55 includes a prism element group, a texture, and the like.

(Description of auxiliary primary reflection surface 510, auxiliary secondary reflection surface 520, auxiliary emission surface 530)
An auxiliary primary reflection surface 510 is provided on the left side and the right side of the primary reflection surface 51 in the central portion of the front surface of the light guide member 5. The auxiliary primary reflection surface 510 primarily reflects the incident light L2 from the incident surface 50 toward the auxiliary secondary reflection surface 520. The auxiliary primary reflection surface 510 may be a flat surface or a curved surface.

  The auxiliary secondary reflection surface 520 is provided on the left side and the right side of the incident surface 50 at the center of the back surface of the light guide member 5. The auxiliary secondary reflection surface 520 secondarily reflects the auxiliary primary reflection light L30 from the auxiliary primary reflection surface 510 to the auxiliary emission surface 530 side. The auxiliary secondary reflection surface 520 may be a flat surface or a curved surface.

  The auxiliary emission surfaces 530 are respectively provided on the left and right portions of the auxiliary primary reflection surface 510 in the central portion of the front surface of the light guide member 5. The auxiliary emission surface 530 causes the auxiliary secondary reflected light L40 from the auxiliary secondary reflection surface 520 to be emitted outside as auxiliary emission light L50. The auxiliary emission surface 530 is provided with an auxiliary optical element 550 that diffuses the auxiliary emission light L50. The auxiliary optical element 550 includes a prism element group and a texture.

(Description of connecting optical element 7 and connecting reflecting surface 70)
The portion corresponding to the primary reflecting surface 51 and the auxiliary primary reflecting surface 510 of the light guide member 5, that is, the central portion of the front surface of the light guide member 5 and the portion between the auxiliary emitting surfaces 530 is connected optically. An element 7 is provided. A large number of the connecting optical elements 7 are arranged in a straight line from left to right in two rows. The connecting optical element 7 diffuses the light from the inside of the light guide member 5 (the incident light L2 and the connecting reflected light L6) to the outside as connecting outgoing light L7 and emits it. In this example, the connecting optical element 7 is composed of a prism element group protruding from the inside of the light guide member 5 to the outside.

  In the central portion of the back surface of the light guide member 5, a connecting reflection surface 70 is provided between the incident surface 50 and the auxiliary secondary reflection surfaces 520 on the left and right sides. The connection reflection surface 70 reflects the auxiliary primary reflected light L30 from the auxiliary primary reflection surface 510 to the connection optical element 7 side as the connection reflection light L6. The connecting reflection surface 70 may be a flat surface or a curved surface.

  The connecting optical element 7, the auxiliary emission surface 530, and the emission surface 53 are parallel or substantially parallel to each other. The connecting reflection surface 70, the auxiliary secondary reflection surface 520, and the secondary reflection surface 52 are parallel or substantially parallel to each other.

(Description of the operation of the embodiment)
The light guide member 5 and the vehicular lamp 1 according to this embodiment are configured as described above, and the operation thereof will be described below.

  When the light source 4 of the vehicular lamp 1 is turned on, the light L1 is emitted from the light source 4. Light L <b> 1 emitted from the light source 4 enters the light guide member 5 from the incident surface 50 of the light guide member 5. As shown in FIG. 4A, a part of the incident light L <b> 2 is primarily reflected by the primary reflecting surface 51. The primary reflected light L3 is secondarily reflected by the secondary reflecting surface 52. The secondary reflected light L4 is emitted to the outside from the emission surface 53 as emission light L5. The outgoing light L5 is diffused by the optical element 55 on the outgoing surface 53.

  On the other hand, as shown in FIG. 5, the remaining part of the incident light L <b> 2 is emitted as the direct connection emission light L <b> 7 while being diffused from the connection optical element 7 to the outside. Further, the remainder of the incident light L <b> 2 is primarily reflected by the auxiliary primary reflecting surface 510. A part of the auxiliary primary reflected light L30 is reflected by the connecting reflection surface 70. The connected reflected light L6 is emitted as diffused outgoing light L7 while being diffused from the connected optical element 7 to the outside. Further, the remainder of the auxiliary primary reflection light L30 is reflected by the auxiliary secondary reflection surface 520. The auxiliary secondary reflected light L40 is emitted to the outside from the auxiliary emission surface 530 as auxiliary emission light L50. The auxiliary emission light L50 is diffused by the auxiliary optical element 550 on the auxiliary emission surface 530.

  As a result, as shown in FIG. 6, the outgoing light L5 emitted to the outside from the emission surface 53 and diffused by the optical element 55, and emitted to the outside from the auxiliary emission surface 530 and diffused by the auxiliary optical element 550. The auxiliary emission light L50 and the continuous emission light L7 that is emitted while being diffused from the connection optical element 7 to the left and right are elongated rectangular, that is, strip-shaped light emitting surfaces (gratings in FIG. 6 are applied). Part) is formed. On the other hand, rectangular and strip-shaped non-light emitting surfaces 54 (outlined portions in FIG. 6) are formed between the belt-like light emitting surfaces in four steps in the vertical direction.

(Explanation of effect of embodiment)
The light guide member 5 and the vehicle lamp 1 according to this embodiment are configured and operated as described above, and the effects thereof will be described below.

  In the light guide member 5 and the vehicle lamp 1 according to this embodiment, the primary reflection surface 51 causes a large amount of incident light L2 that is incident on the light guide member 5 from the incident surface 50 to the light L1 from the light source 4. The light can be primarily reflected as the primary reflected light L3 toward the secondary reflection surface 52 and the emission surface 53 side. As a result, the light guide member 5 and the vehicular lamp 1 according to this embodiment include a single light source 4 and a bright band-like light emitting surface (FIG. 6) on the exit surface 53 without using a plurality of reflectors. It is a portion to which the inner lattice is applied, and an upper two-stage light emission surface and a lower two-stage light emission surface) can be formed.

  Here, as shown in FIG. 7, the primary reflection surface 51 </ b> A of the light guide member 500 has a parabola with a focus F near the light source 4 or the light source 4 or a quadratic curve approximated to a parabola. A description will be given of primary reflection in the case of a reflecting surface formed by rotating about the axis O1 passing through the vicinity as the rotation center. That is, the primary reflecting surface 51A in the above case primarily reflects incident light as primary reflected light L3A at approximately 360 ° about the axis O1. For this reason, a lot of light cannot be reflected on the belt-like light emitting surface.

  On the other hand, in the light guide member 5 and the vehicle lamp 1 according to this embodiment, the primary reflection surface 51 has a parabola or a quadratic curve approximated to a parabola or a parabola with the focal point F in the vicinity of the light source 4 or the light source 4, This is a reflection surface formed by rotating about the axis O2 located on the opposite side of the light source 4 from the reflection direction of the primary reflected light L3. For this reason, as shown by the primary reflected light L3 in FIG. 7, a lot of light can be reflected on the belt-like light emitting surface.

  That is, as shown in FIG. 7, the primary reflected light L3 from the primary reflective surface 51 of the light guide member 5 according to this embodiment and the primary reflected light L3A from the primary reflective surface 51A of the light guide member 500 pass through the same passage. When passing through the point P, the central angle of the primary reflected light L3 from the primary reflection surface 51 of the light guide member 5 according to this embodiment on the rotation center axis O2 is the primary reflection from the primary reflection surface 51A of the light guide member 500. It is smaller than the central angle of the light L3A on the axis O1. For this reason, the light flux (light amount) of the primary reflected light L3 from the primary reflection surface 51 of the light guide member 5 according to this embodiment is larger than the light flux of the primary reflected light L3A from the primary reflection surface 51A of the light guide member 500. Many.

  In the light guide member 5 and the vehicle lamp 1 according to this embodiment, a plurality of primary reflecting surfaces 51 are formed from a plurality of upper and lower four parabolas or quadratic curves and a rotation center axis O2 in this example. is there. For this reason, the light guide member 5 and the vehicle lamp 1 according to this embodiment are configured such that the incident light L2 is further increased as the primary reflected light L3 by the plurality of primary reflecting surfaces 51, and the secondary reflecting surface 52 and the emitting surface 53 side. Primary reflection.

  In the light guide member 5 and the vehicular lamp 1 according to this embodiment, the secondary reflection surface 52 is divided into a plurality of parts in the extending direction. For this reason, the light guide member 5 and the vehicular lamp 1 according to this embodiment can efficiently secondary-reflect the primary reflected light L3 from the primary reflecting surface 51 as the secondary reflected light L4 in the extending direction. Therefore, it is possible to efficiently form a band-like light emitting surface for a lot of light.

  In the light guide member 5 and the vehicle lamp 1 according to this embodiment, a plurality of secondary reflection surfaces 52 and emission surfaces 53 are provided in this example, two on the upper side and two on the lower side. The next reflecting surface 52 and the outgoing surface 53 are parallel or substantially parallel to each other, and a non-light emitting surface 54 is formed between the upper and lower outgoing surfaces 53. For this reason, in the light guide member 5 and the vehicle lamp 1 according to this embodiment, two strip-like light emitting surfaces are obtained at the top and bottom, and no strip-shaped light emitting surface is provided between the two strip-shaped light emitting surfaces at the top and bottom. Since the light emitting surface 54 is obtained, a novel light emitting design can be obtained.

  In the light guide member 5 and the vehicle lamp 1 according to this embodiment, an optical element 55 that diffuses the outgoing light L5 is provided on the outgoing surface 53. For this reason, in the light guide member 5 and the vehicle lamp 1 according to this embodiment, since the emitted light L5 emitted from the emission surface 53 to the outside is diffused by the optical element 55, the visibility of the belt-like light emission surface is improved. It is improved and preferable as the vehicular lamp 1.

  In particular, in the light guide member 5 and the vehicle lamp 1 according to this embodiment, as shown in FIG. 5, the linked emitted light L7 is emitted to the outside from the linked optical element 7 of the primary reflecting surface 51 and the auxiliary primary reflecting surface 510. Is. For this reason, the light guide member 5 and the vehicle lamp 1 according to this embodiment are connected even if they are non-light-emitting surfaces where the incident light L2 is primarily reflected on the primary reflection surface 51 and the primary reflection surface 51 itself does not emit light. The connected optical element 7 emits light by the connected outgoing light L7 from the optical element 7. Thereby, the light guide member 5 and the vehicle lamp 1 according to this embodiment can form a light emitting surface (surface of the connecting optical element 7 portion) on the primary reflecting surface 51 of the non-light emitting surface.

  In the light guide member 5 and the vehicle lamp 1 according to this embodiment, a connecting reflection surface 70 that reflects the incident light L <b> 2 toward the connecting optical element 7 is provided between the incident surface 50 and the auxiliary secondary reflection surface 520. It is a thing. Therefore, in the light guide member 5 and the vehicle lamp 1 according to this embodiment, a part of the auxiliary primary reflected light L30 from the auxiliary primary reflection surface 510 is provided on the auxiliary primary reflection surface 510 by the connecting reflection surface 70. It can be reflected to the connecting optical element 7 side and emitted from the connecting optical element 7 to the outside. Thereby, the light guide member 5 and the vehicular lamp 1 according to this embodiment are auxiliary primary reflected light L30 from the connecting reflection surface 70 and output from the connecting optical element 7 of the auxiliary primary reflection surface 510. By L7, a light emitting surface can be formed on the primary reflecting surface 51 and the auxiliary primary reflecting surface 510 of the non-light emitting surface.

  In the light guide member 5 and the vehicle lamp 1 according to this embodiment, a plurality of connecting optical elements 7 are arranged in two lines on the left and right in a straight line in the upper and lower rows that emit the connecting emitted light L7 while diffusing to the outside. It consists of a prism element. For this reason, the light guide member 5 and the vehicular lamp 1 according to this embodiment include an auxiliary primary reflecting surface 510, an auxiliary secondary reflecting surface 520, an auxiliary emitting surface 530, a connecting optical element 7, and a connecting reflecting surface 70. 4 and the incident surface 50 and the central portion of the light guide member 5 where the primary reflecting surface 51 is located, a band-like light emitting surface (the middle band-like light emitting surface in FIG. 6) can be formed. A light emitting design is obtained, and the visibility is further improved, which is preferable as the vehicular lamp 1.

(Description of example other than embodiment)
In the above embodiment, the stop lamp will be described. However, the present invention can be used for vehicle lamps other than stop lamps, for example, vehicle lamps such as tail lamps, clearance lamps, position lamps, turn signal lamps, tail / stop lamps, rear fog lamps, and indoor lamps.

  Moreover, in the said embodiment, the horizontal strip | belt-shaped light emission surface of two top and bottom is formed. However, in the present invention, in addition to the horizontal band-shaped light emitting surface, a vertical band-shaped light emitting surface or an oblique band-shaped light emitting surface may be formed. The number is not particularly limited.

  Furthermore, in the above-described embodiment, a large number of connecting optical elements 7 are arranged in a straight line from left to right in two rows. However, in the present invention, the back row and the number of the connecting optical elements 7 are not particularly limited. One connecting optical element 7 may be used.

DESCRIPTION OF SYMBOLS 1 Vehicle lamp 2 Lamp housing 3 Lamp lens 4 Light source 5,500 Light guide member 50 Incident surface 51, 51A Primary reflective surface 52 Secondary reflective surface 53 Outgoing surface 54 Non-light emitting surface 55 Optical element 510 Auxiliary primary reflective surface 520 Auxiliary second Next reflective surface 530 Auxiliary exit surface 550 Auxiliary optical element 6 Lamp chamber 7 Linked optical element 70 Linked reflective surface U Upper side of vehicle D Lower side of vehicle L Left side of vehicle R Right side of vehicle F Focus L1 Light from light source L2 Incident light L3 , L3A Primary reflected light L4 Secondary reflected light L5 Emission light L30 Auxiliary primary reflected light L40 Auxiliary secondary reflected light L50 Auxiliary outgoing light L6 Linked reflected light L7 Linked emitted light O1 axis O2 Rotation center axis P Passing point

Claims (6)

A vehicle lens member,
An incident surface on which light from one light source disposed at a predetermined position is incident on the inside;
A primary reflecting surface that primarily reflects incident light from the incident surface;
A secondary reflection surface for secondary reflection of primary reflected light from the primary reflection surface;
An exit surface that emits the secondary reflected light from the secondary reflection surface to the outside as exit light; and
With
The primary reflection surface is a parabola with a focus on the light source or the vicinity of the light source or a quadratic curve approximated to a parabola, with an axis positioned on the opposite side to the reflection direction of the primary reflected light with respect to the light source. As a reflection surface formed by rotating,
The secondary reflection surface and the exit surface are extended in a direction intersecting the reflection direction of the primary reflected light,
A vehicular lens member. The primary reflection surface is formed from a plurality of the parabola or the quadratic curve and the rotation center axis.
The vehicular lens member according to claim 1. The secondary reflection surface is divided into a plurality of extending directions,
The vehicular lens member according to claim 1, wherein the vehicular lens member is provided. A plurality of the secondary reflection surface and the emission surface are provided,
The plurality of secondary reflection surfaces and the emission surface are parallel or substantially parallel to each other,
A non-light emitting surface is formed between the plurality of emission surfaces.
The vehicular lens member according to claim 1, wherein the vehicular lens member is a vehicular lens member. The emission surface is provided with an optical element that diffuses the emitted light.
The vehicular lens member according to claim 1, wherein the vehicular lens member is provided. A lamp housing and a lamp lens that partition the lamp chamber;
One light source disposed at a predetermined position in the lamp chamber;
The vehicle lens member according to any one of claims 1 to 5, which is disposed in the lamp chamber;
Comprising
A vehicular lamp characterized by the above.

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