JP2014175225A - Accessory lamp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an accessory lamp which has three-dimensional beauty giving a depth perception.SOLUTION: An accessory lamp 1 comprises: an LED 6 as a light source; an inner lens 9 including a lens part A emitting light from the LED 6 forward and a lens part B having a plurality of total reflecting surfaces 9b, 9c totally reflecting the light to behind the LED 6; and a reflector 7 which is positioned behind the LED 6, and reflects light exiting from the lens part B of the inner lens 9 so that the light becomes substantially parallel with a lamp axis AX. In the accessory lamp 1, the reflector 7 positioned more on an inner side than the LED 6 can be made to illuminate, so a viewer recognizes the position of the reflector 7 as a depth, so that the accessory lamp 1 has three-dimensional beauty giving a depth perception.

Description

  The present invention relates to an accessory lamp having an LED (light emitting diode) as a light source.

  Accessory lamps are arranged on the left and right sides of the front end of the vehicle. In recent years, high-brightness and long-life LEDs are being used as light sources, and an example is shown in FIG.

  That is, FIG. 5 is a side sectional view of a conventional accessory lamp. The illustrated accessory lamp 101 has a disk-shaped substrate in a lamp chamber 104 defined by an outer lens 103 that covers a housing 102 and a front opening thereof. A plurality of LEDs 106 which are light sources mounted on the outer periphery of 105, a disk-shaped reflector 107 disposed in front of the substrate 5 (leftward in FIG. 5), and a bottomed surface disposed in front of the reflector 107 A cylindrical holder 108 and a bottomed cylindrical inner lens 109 whose outer periphery is held by the holder 108 are accommodated.

  In such an accessory lamp 101, when current is supplied to the plurality of LEDs 106 and these LEDs 106 emit light, part of the light passes through the outer lens 103 as it is as direct light L1 ′, and is irradiated forward. After passing through the inner lens 109, the light passes through the outer lens 103 and is irradiated forward as transmitted light L2 ′.

  Incidentally, in Patent Document 1, as shown in a partial plan sectional view of FIG. 6, one LED 206, a reflector 207, and a light guide lens 209 are accommodated in a lamp chamber 204, and a light guide portion is provided in the light guide lens 209. The structure which forms 209A and the lens part 209B is proposed. According to this, incident light from one LED 206 is distributed to the light guide portion 209A and the reflector 207 side by the lens portion 209B, and light L1 ″ that guides the light guide portion 209A is formed on the back surface of the light guide portion 209A. The light L2 ″ reflected by the lens cut 209a and irradiated forward (downward in FIG. 6) and totally reflected by the lens unit 209B toward the reflector 207 side is condensed at the focal point F and then reflected by the reflector 207. Then it is irradiated forward.

JP 2012-169170 A

  In the accessory lamp 101 shown in FIG. 5, the depth sensation is determined by the depth dimension P1 of the light emitting LED 106, and the viewer visually recognizes the position of the light emitting LED 106 as the depth.

  By the way, when the depth dimension of the accessory lamp is limited by the vehicle space, the depth dimension of the LED is also limited, and thus there is a problem that it is difficult to design the accessory lamp with a three-dimensional aesthetic appearance. . In the configuration proposed in Patent Document 1, since the reflector is provided only at a part of the end portion of the lamp, it is impossible to enhance the depth of the entire lamp.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide an accessory lamp having a three-dimensional beauty with a sense of depth.

In order to achieve the above object, the invention according to claim 1
An LED as a light source;
An inner lens including a lens portion A that irradiates light from the LED forward, and a lens portion B that has a plurality of total reflection surfaces that totally reflect backward from the LED;
A reflector that is located behind the LED and reflects light emitted from the lens B of the inner lens so as to be light substantially parallel to a lamp optical axis;
It is characterized by providing.

  The invention according to claim 2 is characterized in that, in the invention according to claim 1, the inner lens is held by a holder made of a black resin that blacks out a region other than the region irradiated with light from the lens B of the reflector. And

  The invention according to claim 3 is the invention according to claim 1 or 2, wherein light having an angle of 7.5 ° radially outward from the optical axis emitted from the LED is incident on the lens portion A of the inner lens, It is characterized in that light at a direction inner side of 7.5 ° is incident on the lens portion B.

  According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, an opening is formed in the inner lens for allowing light reflected by the reflector to pass therethrough.

  According to a fifth aspect of the present invention, in the invention according to any one of the first to fourth aspects, the inner lens is formed of a clear lens without a lens cut.

  The invention according to claim 6 is the invention according to any one of claims 1 to 5, wherein the reflector is formed with a reflecting surface so that a focal point of the light emitted from the lens B is located. Features.

  According to the first and third aspects of the invention, part of the light emitted from each of the plurality of LEDs is totally reflected rearward of the LED by the total reflection surface of the lens portion B of the inner lens, and rearward of the LED. Reflected by the reflector arranged in the light, it becomes light substantially parallel to the lamp axis and is emitted toward the front, so that the reflector located behind the LED can be illuminated, and the viewer can position the reflector. Even an accessory lamp whose depth is limited by the vehicle space can be recognized as a depth, and a three-dimensional beauty with a sense of depth can be exhibited.

  According to the invention of claim 2, since the holder is blacked out by the holder other than the region irradiated with light from the lens B of the inner lens, the reflector and the other black portion can be clearly distinguished, The sense of depth of the accessory lamp is emphasized.

  According to the fourth aspect of the present invention, since the light reflected by the reflector passes through the opening formed in the inner lens without being disturbed by the inner lens and is irradiated forward, the amount of light is increased. The depth of the accessory lamp is enhanced and a three-dimensional beauty is obtained.

  According to the fifth aspect of the present invention, since the inner lens is formed of a clear lens without lens cut, the LED can be seen more than the actual quantity by transmitted light and reflected light, and a sparkling crystal feeling can be obtained.

It is a disassembled perspective view of the accessory lamp which concerns on this invention. It is a side view of the accessory lamp which concerns on this invention. It is a front view of the accessory lamp which concerns on this invention. It is the XX sectional view taken on the line of FIG. It is a sectional side view of the conventional accessory lamp. It is a partial plane sectional view of the vehicular lamp proposed in patent documents 1.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  1 is an exploded perspective view of an accessory lamp according to the present invention, FIG. 2 is a side view of the accessory lamp, FIG. 3 is a front view of the accessory lamp, and FIG. 4 is a sectional view taken along line XX of FIG. The illustrated accessory lamp 1 is a lamp disposed on the left and right of the front end portion of the vehicle. The left and right accessory lamps 1 are symmetrical and have the same basic structure on the left and right, and therefore only one will be illustrated and described below.

  The accessory lamp 1 according to the present embodiment is a lamp used for vehicles, general lighting, and the like, and is defined by a bottomed cylindrical housing 2 having a front opening and a transparent outer lens 3 covering the front opening. In the lamp chamber 4, six LEDs 6 that are light sources mounted on the outer periphery of a disk-shaped substrate 5, and a disk-shaped reflector 7 disposed in front of the substrate 5 (left side in FIG. 4), A bottomed cylindrical holder 8 disposed in front of the reflector 7 and a bottomed cylindrical inner lens 9 whose outer periphery is held by the holder 8 are accommodated, and the lamp axis AX is arranged in the front-rear direction. Have.

  The housing 2 is integrally formed into a bottomed cylindrical shape by a light-impermeable resin, and as shown in FIG. 4, a plug 10 is inserted and attached to the center of the back surface from the outside. Two upper and lower terminals 11 extending forward from the plug 10 are inserted and connected to the substrate 5. The outer periphery of the disc-shaped outer lens 3 is fitted and bonded to the periphery of the front opening of the housing 2, whereby the lamp chamber 4 is defined by the outer lens 3 and the housing 2.

  The six LEDs 6 are bullet-type LEDs, and as shown in FIG. 1, these LEDs 6 are mounted on the outer periphery of the front surface of the disk-shaped substrate 5 at an equal angular pitch (60 ° pitch) at equal intervals in the circumferential direction. Has been.

  The reflector 7 is integrally formed in a disc shape with resin, and as shown in FIG. 1, circular holes 7a through which each LED 6 passes are respectively provided at six locations corresponding to the LEDs 6 on the outer periphery thereof. Is formed. Further, at the center of the front surface of the reflector 7, six petal-like reflecting surfaces 7 </ b> A extending radially outward toward the respective circular holes 7 a (LEDs 6) are projected. These reflection surfaces 7A are formed in a parabolic shape, and are subjected to a reflection process such as aluminum vapor deposition for increasing the reflectance. Further, each of the reflecting surfaces 7A of the reflector 7 is incident on a lens B of an inner lens 9 (described later) out of the light emitted from the LED 6 and reflected by the total reflection surfaces 9b and 9c of the lens B, and then the lens B The focal position of the light emitted from is provided.

  The holder 8 is integrally formed of a black resin into a bottomed cylindrical shape. As shown in FIG. 1, circular holes formed at six locations on the outer periphery of the reflector 7 are formed on the outer periphery of the bottom wall in contact with the reflector 7. A circular hole (a circular hole through which the LED 6 passes) 8a communicating with 7a is formed. Further, on the bottom wall of the holder 8, six petal-like openings 8 </ b> A are formed for fitting with six reflecting surfaces 7 </ b> A protruding from the front surface of the reflector 7.

  The inner lens 9 is integrally formed in a bottomed cylindrical shape with a transparent resin such as acrylic or polycarbonate, and is configured as a clear lens without lens cut. Here, as shown in FIG. 4, a substrate 5 on which six LEDs 6 are mounted, a reflector 7, a holder 8, and an inner lens 9 are incorporated in a lamp chamber 4 defined by a housing 2 and an outer lens 3. In the state, the six LEDs 6 project from the holder 8 toward the inner lens 9 through the circular holes 7a and 8a (see FIG. 1) formed in the reflector 7 and the holder 8, respectively. Further, the six reflecting surfaces 7 </ b> A protruding from the front surface of the reflector 7 are fitted into the same number of openings 8 </ b> A formed in the holder 8 and protrude from the holder 8 toward the inner lens 9. Therefore, in the accessory lamp 1 according to the present embodiment, as shown in FIG. 4, the reflecting surface 7 </ b> A of the reflector 7 is located behind the LED 6, and the depth dimension P <b> 2 is larger than the depth dimension P <b> 1 of the LED 6. It is set large (P2> P1). In addition, the depth dimension of the accessory lamp 1 which concerns on this Embodiment is restrict | limited to P3 of illustration from the relationship of vehicle space.

  Thus, the outer cylindrical portion of the inner lens 9 is a part of the light from each of the six LEDs 6 (specifically, an angle of 7.5 ° radially outward from the optical axis of each LED 6 as shown in FIG. 4). The lens portion A is configured to guide the light emitted toward the front and irradiate it forward as transmitted light L1.

  Further, on the bottom wall of the inner lens 9, as shown in FIGS. 1 and 3, six petal-like openings having the same shape as the opening 8A are formed at positions corresponding to the openings 8A formed in the holder 8. 9A is formed, and the portion excluding the opening 9A on the bottom wall is a part of the light from the LED 6 (specifically, 7.5 ° radially inward from the optical axis of each LED 6 as shown in FIG. 4). The lens B is configured to totally reflect the light emitted toward the angle (2) and irradiate the light toward the reflector 7. Here, a concave spherical incident surface 9a is formed at a position facing the LEDs 6 on the back surface of the lens B, and two total reflection surfaces 9b and 9c are formed on the front surface of the lens B. In FIG. 4, 12 is a fog bracket for holding the accessory lamp 1.

  In the accessory lamp 1 configured as described above, when current is supplied to each LED 6 from a power source (not shown) through the terminal 11 of the plug 10 and the substrate 5, each LED 6 is activated and emits light. A part of the light enters the inner lens 9 from the incident surface 9a of the inner lens 9 as shown in FIG. 4, passes through the lens A as it is, and is irradiated forward through the outer lens 3 as transmitted light L1.

  On the other hand, the other part of the light incident on the inner lens 9 from the incident surface 9a of the inner lens 9 is totally reflected twice by the total reflection surfaces 9b and 9c of the lens B, and is directed backward toward the reflector 7. And is reflected by the reflecting surface 7A of the reflector 7 and passes forward through the opening 8A of the holder 8 and the opening 9A of the inner lens 9 as reflected light L2 substantially parallel to the optical axis of each LED 6, The light passes through the outer lens 3 and is irradiated forward.

  As described above, in the accessory lamp 1 according to the present embodiment, part of the light emitted from each of the six LEDs 6 is rearward of the LED 6 on the total reflection surfaces 9 b and 9 c of the lens portion B of the inner lens 9. And is reflected by the reflecting surface 7A of the reflector 7 disposed behind the LED 6 and is reflected toward the front as reflected light L2 substantially parallel to the lamp axis AX. The reflecting surface 7A of the reflector 7 located at the position can be illuminated, and the viewer recognizes the position of the reflecting surface 7A of the reflector 7 (the position of the depth dimension P2 shown in FIG. 4) as the depth, and the depth dimension depends on the vehicle space. Even if there is one accessory lamp limited to P3 shown in FIG. 4, a three-dimensional beauty with a sense of depth can be exhibited.

  In the present embodiment, the holder 8 is made of black resin, and the holder 8 is blacked out except for the region irradiated with light from the lens B of the inner lens 9, so that the reflector 7 and the other black portion Can be clearly distinguished from each other, and the effect that the sense of depth of the accessory lamp 1 is emphasized can be obtained. In the present embodiment, the reflected light L2 reflected by the reflector 7 passes through the opening 9A formed in the inner lens 9 without being obstructed by the inner lens 9, and is irradiated forward. The depth of the accessory lamp 1 is enhanced and a three-dimensional beauty is obtained.

  Furthermore, in this embodiment, since the inner lens 9 is configured by a clear lens without lens cut, the six LEDs 6 appear to be more than the actual quantity by the transmitted light L1 and the reflected light L2, and a sparkling crystal feeling can be obtained. .

DESCRIPTION OF SYMBOLS 1 Accessory lamp 2 Housing 3 Outer lens 4 Light chamber 5 Board | substrate 6 LED
7 Reflector 7A Reflective surface of reflector 7a Circular hole of reflector 8 Holder 8A Opening of holder 8a Circular hole of holder 9 Inner lens 9A Opening of inner lens 9a Incident surface of inner lens 9b, 9c Total reflecting surface of inner lens 10 Plug 11 Terminal 12 Fog bracket A, B Lens part of inner lens AX Lamp shaft L1 Transmitted light L2 Reflected light P1 LED depth P2 Reflector depth P3 Accessory lamp depth

Claims (6)

An LED as a light source;
An inner lens including a lens portion A that irradiates light from the LED forward, and a lens portion B that has a plurality of total reflection surfaces that totally reflect backward from the LED;
A reflector that is located behind the LED and reflects light emitted from the lens B of the inner lens so as to be light substantially parallel to a lamp axis;
An accessory lamp comprising:   The accessory lamp according to claim 1, wherein the reflector is held by a holder made of a black resin that blacks out a region other than the region irradiated with light from the lens B of the reflector.   Light having an angle of 7.5 ° radially outward from the optical axis emitted from the LED is incident on the lens portion A of the inner lens, and light having an angle of 7.5 ° radially inward is incident on the lens portion B. The accessory lamp according to claim 1 or 2.   The accessory lamp according to claim 1, wherein an opening for allowing the light reflected by the reflector to pass through is formed in the inner lens.   The accessory lamp according to claim 1, wherein the inner lens is formed of a clear lens without lens cut. The accessory lamp according to claim 1, wherein a reflective surface is formed on the reflector so that a focus of light emitted from the lens B is located.

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