JP2022057268A - Light control member for vehicular lighting fixture, and vehicular lighting fixture - Google Patents

Abstract

To provide a light control member and a vehicular lighting fixture that impart a smooth connection feeling with respect to impressions on a control surface at lighting time and non-lighting time.SOLUTION: The present invention has a reflection surface 20 as a control surface. The reflection surface 20 is divided in micro reflection surfaces 22 as a plurality of micro control surfaces. Each of the plurality of micro reflection surfaces 22 has micro collimation surfaces 21 and micro connection surfaces 23. Each of the plurality of micro collimation surfaces 21 is arranged at intervals, and irradiates predetermined collimation points among 19 collimation points P1 to P19 in a distribution of light with light L1. Each of the plurality of micro connection surfaces 23 connects the plurality of micro collimation surfaces 21. Consequently, the present invention imparts a smooth connection feeling with respect to impressions on the control surface at lighting time and non-lighting time.SELECTED DRAWING: Figure 3

Description

The present invention relates to an optical control member (reflector, inner lens (light guide member), outer lens, etc., hereinafter referred to as "optical control member") of a vehicle lamp. The present invention also relates to a vehicle lamp provided with an optical control member (hereinafter, referred to as "vehicle lamp").

Examples of optical control members and vehicle lamps having a plurality of minute control surfaces are those shown in Patent Document 1. Hereinafter, the reflector 2A of Patent Document 1 and the lighting fixture for a vehicle will be described with reference to FIGS. 6, 7 (B) and 7 (C).

The reflector 2A and the vehicle lamp of Patent Document 1 have a control surface, that is, a reflection surface 20A, and the reflection surface 20A is divided into a plurality of micro control surfaces, that is, a micro reflection surface 21A. The reflector 2A and the vehicle lamp of Patent Document 1 are controlled by reflecting light as reflected light by a plurality of minute reflecting surfaces 21A, and set a predetermined aiming point among a plurality of aiming points in the light distribution. Irradiate. As a result, the reflector 2A of Patent Document 1 and the lamp for vehicles can form the desired light distribution.

Japanese Unexamined Patent Publication No. 2020-13725

The reflector 2A and the lamp for a vehicle of Patent Document 1 are composed of a plurality of micro-reflecting surfaces 21A, all of which are micro-aiming surfaces that irradiate a predetermined aiming point with light as reflected light. Therefore, in the reflector 2A and the vehicle lamp of Patent Document 1, the angle at which the plurality of micro-reflecting surfaces 21A are tilted, the direction in which the mother point, which is the center of the plurality of micro-reflecting surfaces 21A, is deviated, and the plurality of micro-reflecting surfaces 21A The amount of shifting the mother point and the amount of projecting the plurality of minute reflecting surfaces 21A are different from each other because they are set to aim at a predetermined aiming point.

As a result, in the reflector 2A and the vehicle lamp of Patent Document 1, as shown in FIG. 7B, a gap may be generated between the sides of the adjacent micro-reflecting surfaces 21A. Therefore, in the reflector 2A and the vehicle lamp of Patent Document 1, as shown in FIGS. 6 and 7 (C), a minute connecting surface 23A is provided between the sides of the adjacent minute reflecting surfaces 21A to fill the gap. There is.

Therefore, in the reflector 2A and the vehicle lamp of Patent Document 1, as shown in FIGS. 6 and 7 (C), the adjacent micro-reflecting surfaces 21A may not be smoothly connected by the micro-connecting surface 23A. .. As a result, the reflector 2A and the vehicle lighting fixture of Patent Document 1 may not have a smooth connection in the appearance (appearance) of the reflecting surface 20A when it is lit and when it is not lit.

An object to be solved by the present invention is to provide an optical control member and a lamp for a vehicle that can obtain a smooth connection in the appearance (appearance) of a control surface when it is lit and when it is not lit.

The optical control member of the present invention has a control surface that controls light to form a desired light distribution, the control surface is divided into a plurality of micro control surfaces, and the plurality of micro control surfaces are composed of a plurality of micro control surfaces. Each has a minute aiming surface and a minute connecting surface, and a plurality of minute aiming surfaces are arranged with a space between them, and light is determined among a plurality of aiming points in the light distribution. It is characterized in that, by irradiating the aiming point of the above, a plurality of micro-aiming surfaces are arranged between the plurality of micro-aiming surfaces, and are connected to the plurality of micro-aiming surfaces.

In the optical control member of the present invention, it is preferable that a plurality of minute aiming planes are each distributed based on a low stagger amount sequence.

In the optical control member of the present invention, it is preferable that a plurality of minute aiming surfaces each form a polygonal plane.

In the optical control member of the present invention, it is preferable that the plurality of micro-aiming surfaces and the plurality of micro-connecting surfaces each form a flat surface in a polygonal shape.

In the optical control member of the present invention, it is preferable that the plurality of minute aiming surfaces and the plurality of minute connecting surfaces each form a flat surface in a triangular shape.

In the optical control member of the present invention, it is preferable that a plurality of micro-aiming surfaces and a plurality of micro-connecting surfaces are each connected by a triangular side.

In the optical control member of the present invention, a plurality of micro-aiming planes are formed with reference to one equilateral triangle among the equilateral triangles obtained by dividing the micro-control planes having a regular hexagonal shape on a plane into six equal parts. It is preferable that the plurality of micro-connecting surfaces are formed with reference to the remaining five equilateral triangles among the equilateral triangles obtained by dividing the micro control surface having a regular hexagonal shape on the plane into six equal parts.

In the optical control member of the present invention, the plurality of micro-aiming surfaces have an angle at which the micro-control surface forming a plane is tilted, a direction in which the mother point, which is the center of the micro-control surface, is shifted, an amount of shifting of the mother point, and a micro-control surface. It is preferable that at least one of the amounts to be extruded is determined based on the low discrepancy amount sequence.

In the light control member of the present invention, it is preferable that the light distribution is the light distribution of the tail lamp function or the light distribution of the stop lamp function.

In the optical control member of the present invention, it is preferable that the control surface is a reflective surface that reflects light from a light source.

In the light control member of the present invention, it is preferable that the reflecting surface is provided on the reflector arranged in the lamp chamber together with the light source.

In the optical control member of the present invention, it is preferable that the control surface is a refracting surface that refracts the light from the light source.

In the light control member of the present invention, it is preferable that the refraction surface is provided on at least one of the entrance surface and the emission surface of the inner lens arranged in the lamp chamber together with the light source.

In the light control member of the present invention, it is preferable that the refraction surface is provided on at least one of the entrance surface and the emission surface of the outer lens forming the lamp chamber.

The vehicle lighting equipment of the present invention is characterized by comprising a member forming a lighting chamber, a light source arranged in the lighting chamber, and an optical control member of the present invention.

The optical control member and the lamp for a vehicle of the present invention can provide a smooth connection in the appearance (appearance) of the control surface when it is lit and when it is not lit.

FIG. 1 is a partial vertical sectional view showing an embodiment of an optical control member and a vehicle lamp according to the present invention. FIG. 2 is a partially enlarged front view showing the reflection surface of the reflector. FIG. 3 is a partially enlarged perspective view showing the reflection surface of the reflector. FIG. 4 is a partially enlarged cross-sectional view (IV-IV line cross-sectional view in FIG. 3) showing a reflecting surface of the reflector. (A) is a partially enlarged cross-sectional view showing a reference reflection surface of the reflector. (B) is a partially enlarged cross-sectional view showing a minute reflection surface formed by dividing the reference reflection surface of the reflector. (C) is a partially enlarged cross-sectional view showing a minute aiming surface among the minute reflecting surfaces of the reflector. (D) is a partially enlarged cross-sectional view showing a minute aiming surface and a minute connecting surface of the minute reflecting surface of the reflector. FIG. 5 is an explanatory diagram showing the light distribution performance of the stop lamp. (A) is an explanatory diagram showing the light distribution performance on the left and right horizontal lines HL-HR. (B) is an explanatory diagram showing the light distribution performance in the upper and lower vertical lines VU-VD. FIG. 6 is a partially enlarged perspective view showing a reflective surface of a reflector for which the present invention has not been carried out. FIG. 7 is a partially enlarged cross-sectional view (VII-VII line cross-sectional view in FIG. 6) showing a reflective surface of a reflector for which the present invention has not been carried out. (A) is a partially enlarged cross-sectional view showing a reference reflection surface of a reflector for which the present invention has not been carried out. (B) is a partially enlarged cross-sectional view showing a minute reflection surface (a state in which adjacent minute reflection surfaces are not smoothly connected to each other) formed by dividing a reference reflection surface of a reflector for which the present invention has not been carried out. .. (C) is a partially enlarged cross-sectional view showing a minute reflecting surface and a minute connecting surface of a reflector for which the present invention has not been carried out. FIG. 8 is an explanatory diagram showing the light distribution performance of the stop lamp by the reflector that did not carry out the present invention. (A) is an explanatory diagram showing the light distribution performance on the left and right horizontal lines HL-HR. (B) is an explanatory diagram showing the light distribution performance in the upper and lower vertical lines VU-VD. FIG. 9 is an explanatory diagram showing a light distribution table for measuring the characteristics of the light distribution. FIG. 10 is an explanatory diagram showing a process of forming a minute aiming surface from a minute emitting surface. (A) is an explanatory front view showing a minute emission surface. (B) is an explanatory front view showing a state in which the minute ejection surface is tilted. FIG. 11 is an explanatory diagram showing a formation process of forming a minute aiming surface from a minute emitting surface. (A) is an explanatory vertical cross-sectional view (CC line cross-sectional view in FIG. 10B) showing a state in which the minute ejection surface is tilted. (B) is an explanatory cross-sectional view (DD line cross-sectional view in FIG. 10B) showing a state in which the minute ejection surface is tilted. FIG. 12 is an explanatory diagram showing a formation process of forming a minute aiming surface from a minute emitting surface. (A) is an explanatory front view showing a direction in which the mother point at the center of the minute exit surface is shifted. (B) is an explanatory front view showing an amount of shifting the mother point of the minute ejection surface. FIG. 13 is an explanatory diagram showing a formation process of forming a minute aiming surface from a minute emitting surface. (A) is an explanatory vertical cross-sectional view (E-E line cross-sectional view in FIG. 12B) showing an amount of protrusion of a minute exit surface. (B) is an explanatory cross-sectional view (FF line cross-sectional view in FIG. 12B) showing the amount of protrusion of the minute emission surface. FIG. 14 is an explanatory front view showing a state in which the mother points of a plurality of reference microexit surfaces are shifted from each other in the formation process of forming the micro aiming surface from the microexit surface. FIG. 15 is a block diagram showing a reflective surface shape determining device, a mold processing device, a mold, and a reflector that carry out the present invention.

Hereinafter, an example of an embodiment (example) of the optical control member and the lamp for a vehicle according to the present invention will be described in detail with reference to the drawings. In this specification, front, rear, upper, lower, left, and right are front, rear, upper, lower, left, and right when the optical control member and vehicle lamp according to the present invention are mounted on the vehicle. Since the drawings are schematic views, the main parts are shown, the parts other than the main parts are omitted, and a part of the hatching is omitted.

In FIGS. 1, 2, 10 to 13, X, Y, and Z constitute Cartesian coordinates (XYZ Cartesian coordinate system). The X-axis is an axis in the vertical direction, with the arrow direction being up and the direction opposite to the arrow being down. The Y-axis is an axis in the left-right (horizontal) direction, with the arrow direction on the right and the direction opposite to the arrow on the left. The Z-axis is an axis in the front-back (horizontal) direction orthogonal to the X-axis and the Y-axis, with the arrow direction being the back and the direction opposite to the arrow being the front. Further, in FIGS. 5, 8 and 9, the reference numeral “HL-HR” indicates a horizontal line on the left and right, and the reference numeral “VU-VD” indicates a vertical line on the upper and lower sides.

(Explanation of the configuration of the embodiment)
Hereinafter, the configurations of the optical control member and the vehicle lamp according to this embodiment will be described. In the figure, reference numeral 1 is a vehicle lamp according to this embodiment, and reference numeral 2 is an optical control member (hereinafter, referred to as “reflector”) of the vehicle lamp 1 according to this embodiment.

(Explanation of vehicle lighting equipment 1)
In this example, the vehicle lighting fixture 1 is any one of a tail lamp, a stop lamp, or a tail stop lamp constituting the rear combination lamp. The vehicle lighting fixture 1 is installed on both the left and right sides of the rear part of the vehicle (not shown).

As shown in FIG. 1, the vehicle lamp 1 includes a lamp housing 11, a lamp lens 12, a light source 13, and a reflector 2.

The lamp housing 11 is composed of, for example, a light-impermeable member (resin member or the like). The lamp lens 12 is, for example, a transparent outer cover, an outer lens, or the like, and is composed of a light-transmitting member (resin member or the like). The design surface of the outer surface of the lamp lens 12 is along the design surface from the rear portion to the side portion of the vehicle.

The lamp lens 12 is red if the color of the light L1 from the light source 13 is white. On the other hand, the lamp lens 12 does not need to be red as long as the light L1 from the light source 13 is red light, and may be colorless and transparent.

The lamp chamber 10 is formed by the lamp housing 11 and the lamp lens 12. A light source 13 and a reflector 2 are arranged in the light chamber 10. In addition to the above-mentioned parts (light source 13 and reflector 2), for example, an inner lens, an inner housing, or the like may be arranged in the light chamber 10.

The light source 13 irradiates the light L1 toward the reflector 2. The light source 13 is attached to the lamp housing 11 directly or via other components. In this example, the light source 13 has one or a plurality of self-luminous semiconductor type light emitting elements (semiconductor light emitting elements) such as LEDs, OELs, or OLEDs (organic ELs).

(Explanation of Reflector 2 and Reflecting Surface 20)
In this example, the reflector 2 is made of resin by injection molding. Like the light source 13, the reflector 2 is attached to the lamp housing 11 directly or via other components. As shown in FIGS. 1 to 4, the reflector 2 has a reflecting surface 20 as a control surface. The front view of FIG. 2 is a view of the front side of the vehicle from the rear side.

In this example, the reflective surface 20 is formed by metal (aluminum) vapor deposition or the like. The reflecting surface 20 controls the light L1 to form a desired light distribution (not shown). That is, in this example, the reflecting surface 20 reflects the light L1 emitted from the light source 13 as the reflected light L2, and the light distribution of the tail lamp function or the light distribution of the stop lamp function (hereinafter, simply "light distribution"). May be referred to as).

The reflecting surface 20 is divided into a plurality of (in this example, about 3000 to about 3600) micro-reflecting surfaces (segments) 22 as micro-control surfaces. The number of the minute reflecting surfaces 22 may be a number other than the above-mentioned range of about 3000 to about 3600.

(Explanation of the minute reflective surface 22)
As shown in FIGS. 2 to 4, each of the plurality of micro-reflecting surfaces 22 has a micro-aiming surface 21 and a micro-connecting surface 23, respectively.

As shown by the thick solid line in FIG. 2, each of the plurality of minute reflecting surfaces 22 has a regular hexagonal shape on a plane. One side of a regular hexagon is about 1 mm to about 5 mm. The size of the minute reflecting surface 22 may be a size other than the above-mentioned range of about 1 mm to about 5 mm.

(Explanation of the minute aiming surface 21 and the minute connecting surface 23)
As shown in FIGS. 2 to 4, the plurality of micro aiming surfaces 21 are arranged with a gap between them. On the other hand, each of the plurality of micro-connecting surfaces 23 is a gradual change surface, is arranged between the plurality of micro-aiming surfaces 21, and is connected to the plurality of micro-aiming surfaces 21. The small aiming surfaces 21 are connected to each other.

As shown in FIGS. 2 to 4, the plurality of micro aiming surfaces 21 and the plurality of micro connecting surfaces 23 each have a triangular shape and form a plane.

That is, each of the plurality of micro-aiming surfaces 21 is a triangle formed with reference to one equilateral triangle among the equilateral triangles obtained by dividing the regular hexagonal micro-reflecting surface 22 on a plane into six equal parts (FIGS. 2 and 2). It forms the plane of a triangle (triangle with a broken line in FIG. 3).

On the other hand, each of the plurality of micro-connecting surfaces 23 is a triangle formed by dividing a regular hexagonal micro-reflecting surface 22 on a plane into six equal parts with respect to the remaining five equilateral triangles (FIG. 2). And the plane of the white triangle in FIG. 3).

The plurality of micro aiming surfaces 21 and the plurality of micro connecting surfaces 23 are connected by the sides of a triangle, respectively. The sides of the triangle have a width dimension and a draft sufficient to mold the plurality of micro aiming surfaces 21 and the plurality of micro connecting surfaces 23 with a mold.

As shown in FIG. 4D, the adjacent micro-aiming surface 21 and the micro-connecting surface 23 are connected to each other, and the adjacent micro-connecting surface 23 and the micro-connecting surface 23 are connected in a zigzag manner. Therefore, the side of the triangle consists of the side of the mountain and the side of the valley.

The height dimension of the peak or the depth dimension of the valley is about 0.1 mm to about 0.5 mm in this example. The height dimension of the peak or the depth dimension of the valley may be a dimension other than the above-mentioned range of about 0.1 mm to about 0.5 mm.
Not particularly limited.

Each of the plurality of micro aiming surfaces 21 uses the light L1 emitted from the light source 13 as the reflected light L2, and the plurality of aiming points P1, P2, P3, P4, P5, P6, P7, P8 in the light distribution. , P9, P10, P11, P12, P13, P14, P15, P16, P17, P18, P19 (hereinafter, simply referred to as "P1 to P19") to reflect to a predetermined aiming point.

The plurality of aiming points P1 to P19 include at least 19 luminous intensity measuring points in the measurement of light distribution characteristics (see the light distribution table shown in FIG. 9), and in this example, 19 luminous intensity measuring points. .. Each of the plurality of micro aiming surfaces 21 is assigned to the 19 luminous intensity measuring points P1 to P19 at a predetermined ratio. That is, the number of the minute aiming surfaces 21 that irradiate the predetermined luminous intensity measurement point with the reflected light L2 is allocated at a predetermined ratio. This predetermined ratio is a ratio according to the ratio of the minimum luminous intensity required at the 19 luminous intensity measuring points P1 to P19.

On the other hand, the plurality of minute connecting surfaces 23 irradiate the light distribution with the light L1 emitted from the light source 13 as the reflected light L2. As a result, the plurality of micro aiming surfaces 21 and the plurality of micro connecting surfaces 23 form a light distribution.

(Explanation of light distribution)
Here, the luminous intensity measurement point of the light distribution characteristic of the tail lamp function or the luminous intensity measurement point of the light distribution characteristic of the stop lamp function will be described with reference to the light distribution table of FIG. The light distribution table shown in FIG. 9 has 19 luminous intensity measuring points P1 to P19 as shown below.

P1 is a point at 5 ° on the left (L) and 10 ° on the top (U).
P2 is a point on the right (R) 5 ° and on the top (U) 10 °.
P3 is a point at 20 ° on the left (L) and 5 ° on the top (U).
P4 is a point at 10 ° on the left (L) and 5 ° on the top (U).
P5 is a point of 0 ° on the left and right (HL-HR) and 5 ° on the top (U).
P6 is a point on the right (R) 10 ° and on the top (U) 5 °.
P7 is a point on the right (R) 20 ° and on the top (U) 5 °.
P8 is a point of 10 ° on the left (L) and 0 ° on the top and bottom (VU-VD).
P9 is a point of 5 ° on the left (L) and 0 ° on the top and bottom (VU-VD).
P10 is a point of 0 ° left and right (HL-HR) and 0 ° up and down (VU-VD).
P11 is a point on the right (R) of 5 ° and up and down (VU-VD) of 0 °.
P12 is a point on the right (R) of 10 ° and up and down (VU-VD) of 0 °.
P13 is a point at 20 ° on the left (L) and 5 ° on the bottom (D).
P14 is a point at 10 ° on the left (L) and 5 ° on the bottom (D).
P15 is a point of 0 ° on the left and right (HL-HR) and 5 ° on the bottom (D).
P16 is a point on the right (R) of 10 ° and on the bottom (D) of 5 °.
P17 is a point at 20 ° on the right (R) and 5 ° on the bottom (D).
P18 is a point at 5 ° on the left (L) and 10 ° on the bottom (D).
P19 is a point at 5 ° on the right (R) and 10 ° on the bottom (D).

The ratio (%) of the minimum luminous intensity of each luminous intensity measuring points P1 to P19 when the minimum luminous intensity of the luminous intensity measuring points P10 is 100% is as follows. The ratio (%) of the minimum luminous intensity below is a numerical value based on the regulations of Japan and Europe. Therefore, in the United States, the following minimum luminous intensity percentages (%) are different.
P1 is 20%.
P2 is 20%.
P3 is 10%.
P4 is 20%.
P5 is 70%.
P6 is 20%.
P7 is 10%.
P8 is 35%.
P9 is 90%.
P10 is 100%.
P11 is 90%.
P12 is 35%.
P13 is 10%.
P14 is 20%.
P15 is 70%.
P16 is 20%.
P17 is 10%.
P18 is 20%.
P19 is 20%.

Further, the minimum luminous intensity of each luminous intensity measuring point P1 to P19 in the light distribution of the tail lamp function is as follows. The unit is candela (cd).
P1 is 0.8cd (Japan, Europe), 0.4cd (US).
P2 is 0.8cd (Japan, Europe), 0.4cd (US).
P3 is 0.4cd (Japan, Europe), 0.3cd (US).
P4 is 0.8cd (Japan, Europe), 0.4cd (US).
P5 is 2.8cd (Japan, Europe), 0.8cd (USA).
P6 is 0.8cd (Japan, Europe), 0.4cd (US).
P7 is 0.4cd (Japan, Europe), 0.3cd (US).
P8 is 1.4cd (Japan, Europe), 0.8cd (US).
P9 is 3.6cd (Japan, Europe), 1.8cd (USA).
P10 is 4.0cd (Japan, Europe), 2.0cd (US).
P11 is 3.6cd (Japan, Europe), 1.8cd (USA).
P12 is 1.4cd (Japan, Europe), 0.8cd (US).
P13 is 0.4cd (Japan, Europe), 0.3cd (US).
P14 is 0.8cd (Japan, Europe), 0.4cd (US).
P15 is 2.8cd (Japan, Europe), 0.8cd (USA).
P16 is 0.8cd (Japan, Europe), 0.4cd (US).
P17 is 0.4cd (Japan, Europe), 0.3cd (US).
P18 is 0.8cd (Japan, Europe), 0.4cd (US).
P19 is 0.8cd (Japan, Europe), 0.4cd (US).

Furthermore, the minimum luminous intensity of each luminous intensity measuring points P1 to P19 in the light distribution of the stop lamp function is as follows. The unit is candela (cd).
P1 is 12cd (Japan, Europe), 16cd (USA).
P2 is 12cd (Japan, Europe), 16cd (USA).
P3 is 6cd (Japan, Europe), 10cd (USA).
P4 is 12cd (Japan, Europe), 16cd (USA).
P5 is 42cd (Japan, Europe), 40cd (USA).
P6 is 12cd (Japan, Europe), 16cd (USA).
P7 is 6cd (Japan, Europe), 10cd (USA).
P8 is 21cd (Japan, Europe), 30cd (USA).
P9 is 54cd (Japan, Europe), 70cd (USA).
P10 is 60cd (Japan, Europe), 80cd (USA).
P11 is 54cd (Japan, Europe), 70cd (USA).
P12 is 21cd (Japan, Europe), 30cd (US).
P13 is 6cd (Japan, Europe), 10cd (USA).
P14 is 12cd (Japan, Europe), 16cd (USA).
P15 is 42cd (Japan, Europe), 40cd (USA).
P16 is 12cd (Japan, Europe), 16cd (USA).
P17 is 6cd (Japan, Europe), 10cd (USA).
P18 is 12cd (Japan, Europe), 16cd (USA).
P19 is 12cd (Japan, Europe), 16cd (USA).

Then, based on the ratio of the minimum luminous intensity at the 19 luminous intensity measuring points P1 to P19, a plurality of (in the following example, about 3600, the number is not limited to about 3600) micro aiming surfaces. 21 is allocated to the following numbers, respectively.
P1 is 20/690 (sum of the ratio of the minimum luminous intensity at the 19 luminous intensity measuring points P1 to P19. The same applies hereinafter) × about 3600.
P2 is 20/690 x about 3600 pieces.
P3 is 10/690 x about 3600 pieces.
P4 is 20/690 x about 3600 pieces.
P5 is 70/690 x about 3600 pieces.
P6 is 20/690 x about 3600 pieces.
P7 is 10/690 x about 3600 pieces.
P8 is 35/690 x about 3600 pieces.
P9 is 90/690 x about 3600 pieces.
P10 is 100/690 x about 3600 pieces.
P11 is 90/690 x about 3600 pieces.
P12 is 35/690 x about 3600 pieces.
P13 is 10/690 x about 3600 pieces.
P14 is 20/690 x about 3600 pieces.
P15 is 70/690 x about 3600 pieces.
P16 is 20/690 x about 3600 pieces.
P17 is 10/690 x about 3600 pieces.
P18 is 20/690 x about 3600 pieces.
P19 is 20/690 x about 3600 pieces.

(Explanation of formation of micro aiming surface 21 and micro connecting surface 23)
The plurality of micro-aiming planes 21 are each distributed based on a low-discrepancy sequence (super-uniform distribution sequence, low-discrepancy sequence, quasi-random number sequence). Here, the low-discrepancy sequence is not a "random number" but a low-discrepancy sequence, as opposed to the Monte Carlo method, which is a method for performing simulations and numerical calculations using "random numbers". Refers to a method for performing simulations and numerical calculations (also called quasi-Monte Carlo method or quasi-random numbers). Calculations and simulations based on such a low difference quantity sequence are performed by using the reflective surface shape determining device 100 configured by a computer. Specifically, the reflective surface shape determining device 100 has a configuration as shown in FIG.

Then, based on the three-dimensional data created by the reflective surface shape determining device 100, the mold 300 is manufactured by the mold processing device 200 as shown in FIG. Using the mold 300, the reflector 2 as the optical control member of this embodiment is formed by, for example, injection molding.

Hereinafter, the reflective surface shape determining device 100 will be described with reference to FIG. The reflective surface shape determining device 100 includes a memory 120 such as a CPU (Central Processing Unit) 110, a RAM (Random Access Memory), a ROM (Read Only Memory), and a non-volatile memory, and is a GPU (Graphics) for performing image processing. Processing Unit) 130 is preferably provided. Further, the reflective surface shape determining device 100 includes a data output unit 140 for transmitting and receiving data from an external device and outputting the formed reflective surface shape data.

The reflective surface shape determining device 100 calculates the shape data determination program stored in the memory 120 and the shape calculation data by the CPU 110 and the GPU 130, so that the shape data of the reflective surface 20 of the reflector 2 as a reference can be obtained. And, based on the incident direction data of the light at each portion with respect to the shape data of the reflecting surface 20, the reflecting surface shape data formed from the minute reflecting surface shape data of the plurality of minute aiming surfaces 21 is formed.

The reflective surface shape data created at this time is determined by an operation based on a low difference quantity sequence. Then, the created reflective surface shape data is output from the data output unit 140 to an external device. The data output unit 140 may be a connection unit connected to a portable memory, or may be a communication unit that communicates by wire or wirelessly.

Further, the external device may be a portable memory, and the reflective surface shape data stored in such a memory may be read by the control unit of the mold processing apparatus 200. Further, when the above-mentioned external device is the mold processing apparatus 200, the control unit of the mold processing apparatus 200 directly receives the reflection surface shape data from the data output unit 140 and converts the reflection surface shape data into the reflection surface shape data. Based on this, the mold processing apparatus 200 processes the mold. Then, the reflector 2 having the reflecting surface 20 as in this embodiment is formed by, for example, injection molding by the mold 300 created by the mold processing apparatus 200.

Hereinafter, the details of the plurality of micro aiming surfaces 21 will be described. However, when the reflective surface 20 having the micro aiming surface 21 and the micro connecting surface 23 is actually produced by injection molding with the mold 300, the manufacturing error and the like are excluded. The actual reflecting surface 20, the minute aiming surface 21, and the minute connecting surface 23 generally correspond to, for example, three-dimensional data such as minute reflecting surface shape data and reflecting surface shape data. Therefore, in the following description, the actual reflecting surface 20 can be regarded as corresponding to the reflecting surface shape data, and the actual micro aiming surface 21 is considered to correspond to the minute reflecting surface shape data. Can be considered.

The plurality of minute aiming surfaces 21 (corresponding to the minute reflection surface shape data; the same applies hereinafter) and the minute connecting surface 23 each have a triangular shape and form a plane. Hereinafter, the formation of the micro aiming surface 21 and the micro connecting surface 23 will be described with reference to FIGS. 2 to 4 and FIGS. 10 to 14.

The plurality of micro-aiming surfaces 21 have angles θX and θY for tilting the micro-reflecting surface 22 having a regular hexagonal shape on a plane, directions X1 for shifting the mother point C which is the center of the micro-reflecting surface 22, and the micro-reflecting surface 22. The amount TX for shifting the mother point C and the amount TZ for pushing out the minute reflecting surface 22 are determined based on the low discrepancy amount sequence. The micro-reflecting surface 22 does not necessarily have to have a regular hexagonal shape on a plane as in this example. For example, it may be an equilateral triangle shape, a regular pentagon shape, a regular heptagon shape or more, or a simple polygonal shape on a plane. Further, the parameters determined based on the low discrepancy amount sequence do not have to be all of the tilt angles θX and θY, the direction X1 for shifting the mother point C, the amount TX for shifting the mother point C, and the protruding amount TZ. That is, at least one of these four parameters may be determined based on the low discrepancy amount sequence.

First, as shown in FIGS. 2, 4 (A), 10, 12, and 14, a plurality of reflective surfaces 20 (corresponding to the reflective surface shape data; the same applies hereinafter) are formed in a regular hexagonal shape on a plane. It is divided into micro-reflective surfaces 22 (about 3600 in the following example). Next, as shown in FIG. 4B, each of the plurality of micro-reflecting surfaces 22 is designated among a plurality of aiming points in the light distribution, that is, 19 luminous intensity measuring points P1 to P19. Aim (aim) at the luminous intensity measurement point and tilt.

For example, as shown in FIGS. 10B and 11A, the optical axis Z1 of the microreflective surface 22 is placed on the XZ surface with the origin as the center and the microreflective surface 22 before being tilted (FIG. 11A). ) Is tilted downward at an angle θX with respect to the optical axis Z (Z axis) of the minute reflective surface 22) indicated by the alternate long and short dash line. Further, as shown in FIGS. 10B and 11B, the optical axis Z1 of the microreflective surface 22 is placed on the YZ surface with the origin as the center before the microreflective surface 22 (FIG. 11B). ) Is tilted to the right at an angle θY with respect to the optical axis Z (Z axis) of the minute reflective surface 22) indicated by the alternate long and short dash line. The ratio of the number of the plurality of minute reflecting surfaces 22 aimed at the 19 luminous intensity measuring points P1 to P19 and tilted is as described above.

Then, as shown in FIG. 12 (A), the direction X1 for shifting the mother point C of the minute reflection surface 22 is set at an angle θ to the right (clockwise) with respect to the X axis with the origin as the center on the XY surface. Decide by shifting. Further, as shown in FIG. 12B, the mother point C of the minute reflecting surface 22 is shifted from the origin by the amount (distance) TX on the shifting direction X1. As a result, as shown in FIG. 14, the mother points of the plurality of micro-reflecting surfaces 22 are shifted from the mother point C of the micro-reflecting surface 22 before shifting to the mother point C1 of the micro-reflecting surface 22 after shifting, respectively. ..

Subsequently, the micro-reflective surface 22 (corresponding to the micro-reflective surface 22 shown by the solid line in FIGS. 11 (A) and 11 (B)) shown by the two-dot chain line in FIGS. 13 (A) and 13 (B) was tilted. On the optical axis Z1 of the later micro-reflective surface 22, it protrudes from the origin by the amount (distance) TZ. As a result, as shown by the solid line in FIGS. 13 (A) and 13 (B), the minute reflecting surface 22 protrudes later.

As described above, the reference reflecting surface 24 is tilted at predetermined angles θX and θY, the mother point C is shifted by a predetermined amount TX on a predetermined direction X1, and further, a predetermined amount TZ is auctioned. A micro-aiming surface 21 is formed on each of the plurality of micro-reflecting surfaces 22 (see FIGS. 4 (B) and 14) (see FIG. 4 (C)). In this example, the reference reflecting surface 24 is composed of a parabolic surface or a rotating paraboloid based on a parabola with the light source 13 as the focal point.

Each of the plurality of micro-aiming surfaces 21 is formed as a triangle with reference to one of the equilateral triangles obtained by dividing the micro-reflecting surface 22 having a regular hexagonal shape on a plane into six equal parts. The plurality of micro aiming surfaces 21 are arranged with a gap between them.

Then, as shown in FIGS. 3 and 4 (D), a plurality of micro connecting surfaces 23 are formed on the reflecting surface 20 together with the plurality of micro aiming surfaces 21. Each of the plurality of micro-connecting surfaces 23 is formed as a triangle based on five equilateral triangles among the equilateral triangles obtained by dividing the micro-reflecting surfaces 22 having a regular hexagonal shape on a plane into six equal parts. Further, the plurality of micro-aiming surfaces 23 are each arranged between the plurality of micro-aiming surfaces 21 and are connected to the plurality of micro-aiming surfaces 21 via triangular sides, or. They are connected by points via the vertices of a triangle. As a result, the plurality of micro-connecting surfaces 23 connect the plurality of micro-aiming surfaces 21 to each other.

The plurality of micro-connecting surfaces 23 are surfaces that imitate the reference reflection surface 24, the surface of the reference reflection surface 24, the surface of the reference reflection surface 24, or the surface along the reference reflection surface 24, respectively. It is formed.

As described above, a plurality of micro-aiming surfaces 21 and a plurality of micro-connecting surfaces 23 (micro-reflecting surface shape data) are formed, and the plurality of micro-aiming surfaces 21 and a plurality of micro-connecting surfaces 23 (micro-reflective surface shape data) are formed. A reflecting surface 20 (reflecting surface shape data) having a reflecting surface shape data) is formed.

When the mold 300 is machined by the mold processing apparatus 200 based on the reflection surface shape data having the plurality of minute reflection surface shape data as described above, the plurality of micro aiming surfaces 21 and the plurality of real ones are obtained. The reflector 2 having the reflecting surface 20 having the minute connecting surface 23 of the above is formed.

(Explanation of operation of embodiment)
The vehicle lamp 1 and the reflector 2 according to this embodiment have the above-mentioned configurations, and the operation thereof will be described below.

Electric power (current) is supplied to the light emitting element of the light source 13 to light and light the light emitting element. Then, the light L1 emitted from the light emitting element is reflected and controlled as the reflected light L2 by the plurality of micro aiming surfaces 21 and the plurality of micro connecting surfaces 23 of the reflecting surface 20 of the reflector 2.

The plurality of micro aiming surfaces 21 irradiate the reflected light L2 to a predetermined aiming point among the 19 aiming points P1 to P19 in the light distribution. On the other hand, the plurality of minute connecting surfaces 23 irradiate the light distribution with the reflected light L2 with the reflected light following the reflected light from the reference reflecting surface 24.

As a result, the reflected light L2 of the red light is irradiated to the rear of the vehicle from the vehicle lighting tool 1 and the reflector 2 according to this embodiment, and a predetermined light distribution, that is, a light distribution of a tail lamp function or a stop lamp function is arranged. Light is obtained.

(Explanation of the effect of the embodiment)
The vehicle lamp 1 and the reflector 2 according to this embodiment have the above-mentioned configurations and actions, and the effects thereof will be described below.

The vehicle lamp 1 and the reflector 2 according to this embodiment have a reflecting surface 20 as a control surface for controlling the light L1 to form a desired light distribution, and the reflecting surface 20 is used as a plurality of minute control surfaces. The plurality of micro-reflecting surfaces 22 are each divided into a micro-reflecting surface 22 and each of the plurality of micro-reflecting surfaces 22 has a micro-aiming surface 21 and a micro-connecting surface 23. The plurality of micro-connecting surfaces 23 are arranged between the plurality of micro-aiming surfaces 21 and are connected to the plurality of micro-aiming surfaces 21. The minute aiming surfaces 21 of the above are connected to each other.

As a result, in the vehicle lamp 1 and the reflector 2 according to this embodiment, the adjacent micro aiming surfaces 21 are smoothly connected via the micro connecting surface 23. As a result, the vehicle lighting fixture 1 and the reflector 2 according to this embodiment can obtain a smooth connection feeling in the appearance (appearance) of the reflecting surface 20 when it is lit and when it is not lit.

(Explanation of Reflector 2A Not Implementing This Invention)
Hereinafter, the reflector 2A for which the present invention has not been carried out will be described with reference to FIGS. 6 and 7.

As shown in FIGS. 6 and 7 (C), the reflector 2A has a reflecting surface 20A as a control surface for controlling light to form a desired light distribution, and the reflecting surface 20A has a plurality of minute particles. It is divided into a minute reflecting surface 21A as a control surface (see FIG. 7A), and a minute connecting surface 23A is provided between the sides of the adjacent minute reflecting surfaces 21A.

That is, the reflector 2A is composed of a plurality of micro-reflecting surfaces 21A, all of which are micro-reflecting surfaces that irradiate a predetermined aiming point with light as reflected light. Therefore, as shown in FIG. 7B, the reflector 2A has an angle at which the plurality of micro-reflecting surfaces 21A are tilted with respect to the reference reflecting surface 24A, and a mother point which is the center of the plurality of micro-reflecting surfaces 21A. The direction of shifting, the amount of shifting the mother point of the plurality of micro-reflecting surfaces 21A, and the amount of pushing out the plurality of micro-reflecting surfaces 21A are determined to aim at a predetermined aiming point and are different.

As a result, as shown in FIG. 7B, the reflector 2A may have a gap between the sides of the adjacent micro-reflecting surfaces 21A. Therefore, as shown in FIGS. 6 and 7 (C), the reflector 2A is provided with a micro connecting surface 23A between the sides of the adjacent micro reflecting surfaces 21A to fill the gap.

Therefore, in this reflector 2A, as shown in FIGS. 6 and 7 (C), the adjacent minute reflecting surfaces 21A may not be smoothly connected by the minute connecting surface 23A. As a result, the reflector 2A may not have a smooth connection in the appearance (appearance) of the reflecting surface 20A when it is lit and when it is not lit.

On the other hand, in the reflector 2 according to this embodiment, since the adjacent micro aiming surfaces 21 are smoothly connected via the micro connecting surface 23, the appearance (appearance) of the reflecting surface 20 when it is lit and when it is not lit. ), A smooth connection can be obtained.

In particular, in the vehicle lamp 1 and the reflector 2 according to this embodiment, since the adjacent micro aiming surfaces 21 are smoothly connected via the micro connecting surface 23, it is easy to process and manufacture the mold 300 for molding the reflector 2. Therefore, the mold 300 can be processed and manufactured by, for example, one-sword carving, and the mold 300 can be processed and manufactured at low cost.

Further, in the vehicle lamp 1 and the reflector 2 according to this embodiment, the plurality of minute aiming surfaces 21 each aim the light L1 emitted from the light source 13 as the reflected light L2 and 19 aiming in the light distribution. A predetermined aiming point among the points P1 to P19 is irradiated, and the plurality of micro-connecting surfaces 23 irradiate the light distribution with the light L1 emitted from the light source 13 as the reflected light L2. As a result, the reflector 2 according to this embodiment can form a desired light distribution.

(Explanation of light distribution performance of stop lamp)
Hereinafter, the light distribution performance of the stop lamp will be described with reference to FIGS. 5, 8 and 9. The light distribution performance of this stop lamp is obtained by computer calculation and simulation.

5 and 8 are drawn based on the light distribution applied to the light emission table of FIG. FIG. 5 shows the light distribution performance of the stop lamp obtained by the reflector 2 in which the present invention is carried out. FIG. 8 shows the light distribution performance of the stop lamp obtained by the reflector 2A for which the present invention was not carried out.

In FIGS. 5A and 8A, the luminous intensity measurement points P8 (left side HL10 °), P9 (left side HL5 °), P10 (left and right 0 °), and P11 (right side RL5 °) in the light distribution table of FIG. ), P12 (right RL10 °) are shown. In FIGS. 5B and 8B, the luminous intensity measurement points P5 (upper HL10 °), P10 (upper and lower 0 °), and P15 (lower RL5 °) in the light distribution table of FIG. 9 are illustrated. There is.

The light distribution performance of the stop lamp obtained by the reflector 2 in which the present invention is carried out is as follows.
P1 is 505.02cd.
P2 is 657.62 cd.
P3 is 86.04cd.
P4 is 458.93cd.
P5 is 2177.29cd.
P6 is 562.23cd.
P7 is 151.23 cd.
P8 is 678.17cd.
P9 is 1894.89cd.
P10 is 2677.96cd.
P11 is 1805.81cd.
P12 is 707.74cd.
P13 is 92.57cd.
P14 is 511.39cd.
P15 is 2172.63cd.
P16 is 502.71cd.
P17 is 86.91cd.
P18 is 656.30 cd.
P19 is 549.95cd.

The light distribution performance of the stop lamp obtained by the reflector 2A for which the present invention has not been carried out is as follows.
P1 is 537.11cd.
P2 is 567.05cd.
P3 is 169.88cd.
P4 is 673.88cd.
P5 is 1411.15cd.
P6 is 716.75cd.
P7 is 171.46cd.
P8 is 836.06cd.
P9 is 1606.53cd.
P10 is 1867.95cd.
P11 is 1539.07cd.
P12 is 973.37cd.
P13 is 167.07cd.
P14 is 782.16cd.
P15 is 1612.39cd.
P16 is 825.19cd.
P17 is 142.76cd.
P18 is 567.23cd.
P19 is 510.60 cd.

As described above, the light distribution performance of the stop lamp obtained by the reflector 2 in which the present invention was carried out (see FIG. 5) and the light distribution performance of the stop lamp obtained by the reflector 2A in which the present invention was not carried out (FIG. 5). 8) has the same light distribution performance to some extent.

That is, the light L1 is applied to the 19 aiming points P1 to P19 of the light distribution of the stop lamp on the minute aiming surface 21 which is 1/6 of the minute reflecting surface 22, and the light L1 is 5/6 of the minute reflecting surface 22. The light distribution performance of the stop lamp obtained by irradiating the light distribution of the stop lamp with the light L1 on the minute connecting surface 23 (the light distribution performance of the stop lamp obtained by the reflector 2 in which the present invention is carried out) and all the minute amounts. The light distribution performance of the stop lamp obtained by irradiating the 19 aiming points P1 to P19 of the light distribution of the stop lamp with the light on the reflecting surface 21A (the light distribution performance of the stop lamp obtained by the reflector 2A for which the present invention was not carried out). Light distribution performance) has the same light distribution performance to some extent.

Further, in the vehicle lamp 1 and the reflector 2 according to this embodiment, the reflecting surface 20 is divided into a plurality of micro-reflecting surfaces 22, and the plurality of micro-reflecting surfaces 22 are each a micro-aiming surface 21 and a micro-reflecting surface 21. Since it has a minute connecting surface 23, the reflected light L2 from the reflecting surface 20 is diffused and emitted in multiple directions by the minute aiming surface 21 and the minute connecting surface 23 of the plurality of minute reflecting surfaces 22. Can be done. As a result, the reflective surface 20 of the vehicle lamp 1 and the reflector 2 according to this embodiment can emit light uniformly.

Moreover, the vehicle lamp 1 and the reflector 2 according to this embodiment have a high brightness feeling due to the minute aiming surface 21 and the minute connecting surface 23 of the plurality of minute reflecting surfaces 22 on the reflecting surface 20 when the light is on and when the light is not on. (Glittering feeling) can be obtained.

In the reflector 2 according to this embodiment, since the plurality of micro aiming surfaces 21 are distributed based on the low discrepancy amount sequence, if the micro aiming surfaces 21 having the same reflection direction of the reflected light L2 are adjacent to each other. It is distributed in a scattered state without being scattered. As a result, the vehicle lamp 1 and the reflector 2 according to this embodiment can make the reflecting surface 20 emit light uniformly, and a high-luminance glittering feeling can be obtained.

In the vehicle lamp 1 and the reflector 2 according to this embodiment, a plurality of micro-aiming surfaces 21 and a plurality of micro-connecting surfaces 23 each have a triangular shape and form a flat surface. That is, the vehicle lamp 1 and the reflector 2 according to this embodiment are made of a flat surface even if the plurality of micro aiming surfaces 21 and the plurality of micro connecting surfaces 23 are each fine and small. Therefore, it is easier to control the reflection of the reflected light L2 as compared with the reflecting surface forming a curved surface, and the light distribution can be controlled with high accuracy.

Moreover, the vehicle lamp 1 and the reflector 2 according to this embodiment are fine because the minute aiming surface 21 and the minute aiming surface 21 are flat even if the minute aiming surface 21 and the minute aiming surface 21 are fine and small surfaces. By processing, the mold 300 can be processed and manufactured at low cost.

In the vehicle lamp 1 and the reflector 2 according to this embodiment, since the plurality of micro-aiming surfaces 21 and the plurality of micro-connecting surfaces 23 are each connected by the sides of a triangle, the micro-aiming surfaces are connected. The 21 and the minute connecting surface 23 are smoothly connected to each other, and a smooth connection feeling can be obtained in the appearance (appearance) of the reflecting surface 20 when it is lit and when it is not lit.

In the vehicle lighting tool 1 and the reflector 2 according to this embodiment, the plurality of micro aiming surfaces 21 are one of the equilateral triangles obtained by dividing the micro reflecting surface 22 having a regular hexagonal shape on a plane into six equal parts. It is formed with reference to a triangle, while the plurality of micro-connecting surfaces 23 form the remaining five equilateral triangles among the equilateral triangles obtained by dividing the micro-reflecting surfaces 22 having a regular hexagonal shape on a plane into six equal parts. It is formed as a reference.

As a result, in the vehicle lamp 1 and the reflector 2 according to this embodiment, all of the plurality of micro aiming surfaces 21 and the plurality of micro reflecting surfaces 22 having a triangular shape on a plane are smoothly connected at their sides. Can be done. As a result, the vehicle lighting fixture 1 and the reflector 2 according to this embodiment can obtain a smooth connection feeling in the appearance (appearance) of the reflecting surface 20 when it is lit and when it is not lit.

In the vehicle lighting tool 1 and the reflector 2 according to this embodiment, the plurality of micro-aiming surfaces 21 have angles θX, θY, and the center of the micro-reflecting surface 22 at which the micro-reflecting surfaces 22 having a regular hexagonal shape and forming a plane are tilted, respectively. The direction X1 for shifting a certain mother point C, the amount TX for shifting the mother point C, and the amount TZ for pushing out the minute reflecting surface 22 are determined based on the low discrepancy amount sequence. As a result, the vehicle lamp 1 and the reflector 2 according to this embodiment can easily and surely form a plurality of micro aiming surfaces 21 on the reflecting surface 20 of the reflector 2 to be injection-molded. Moreover, since the reflector 2 according to this embodiment forms a plurality of minute aiming surfaces 21 based on the low stagger amount sequence as described above, the reflective surface 20 can be made to emit light uniformly, and the brightness is high. You can get a feeling of glitter.

In the vehicle lighting tool 1 and the reflector 2 according to this embodiment, the reflected light L2 reflected by the reflecting surface 20 and irradiating to the outside forms a light distribution of a tail lamp function or a light distribution of a stop lamp function. As a result, the reflector 2 according to this embodiment can obtain a tail lamp function or a stop lamp function that can satisfy the light distribution characteristics.

Since the vehicle lamp 1 and the reflector 2 according to this embodiment are the reflecting surface 20 that reflects the light L1 from the light source 13 as the control surface, the light distribution can be controlled with high accuracy.

Since the vehicle lamp 1 and the reflector 2 according to this embodiment are provided with a reflecting surface 20 and are arranged in the lamp chamber 10 together with the light source 13, they are not easily affected by the outside of the lamp chamber 10. Therefore, the light distribution can be controlled with high accuracy.

(Explanation of examples other than the embodiment)
In the above embodiment, any one of the tail lamp, the stop lamp, and the tail stop lamp constituting the rear combination lamp will be described. However, in the present invention, it can be applied to lamps other than the above-mentioned lamps. For example, a turn signal lamp at the rear of the vehicle, or a rear fog lamp. In the case of a lamp other than the lamp, the color of the lamp lens is other than red, for example, orange, yellow, white, or the like.

Further, in the above embodiment, the number of the minute aiming surfaces 21 of the reflector 2 is about 3000 to about 3600. However, in the present invention, the number of micro-aiming surfaces 21 is not particularly limited as long as the micro-aiming surface 21 can be molded when the reflector 2 is injection-molded.

Further, in the above-described embodiment, a light source having a light emitting element is used as the light source 13. However, in the present invention, as the light source, a light source having a light output larger than that of the light emitting element may be used.

When this large amount of light source is used, the maximum luminous intensity required at the luminous intensity measuring points P1 to P19 of the light distribution may be exceeded. Therefore, the aiming points defined by the plurality of minute aiming surfaces 21 as the aiming points are added to the 19 luminous intensity measuring points P1 to P19, and a plurality of aiming points are further added as auxiliary aiming points. As a result, the luminosity at the 19 luminosity measurement points P1 to P19 (luminous intensity exceeding the required maximum luminosity) is dispersed around the luminosity measurement points, stays within the required maximum luminosity, and is required. It is possible to obtain a luminous intensity higher than the minimum luminous intensity. The auxiliary aiming points are provided at equal pitches of 1.25 ° with respect to the 19 luminous intensity measuring points P1 to P19. However, the pitch of the auxiliary aiming points may be a pitch other than 1.25 °, or may be an unequal pitch.

When this large amount of light source is used and an auxiliary aiming point is provided, the auxiliary aiming points are increased with respect to the 19 luminous intensity measuring points P1 to P19 of the reflector 2. The luminous intensity between the 19 luminous intensity measuring points P1 to P19 of the light changes smoothly, and an eye-friendly light distribution can be obtained.

Furthermore, in the above-described embodiment, an example in which a plurality of micro-aiming surfaces 21 and a plurality of micro-connecting surfaces 23 form a plane in a triangular shape will be described. However, in the present invention, there may be an example in which the plurality of micro aiming surfaces 21 and the plurality of micro connecting surfaces 23 form a plane with a polygonal shape (a shape of a quadrangle or more) other than the triangular shape. Further, in the present invention, there is a case where a plurality of minute aiming surfaces 21 form a plane having a polygonal shape (a shape of a triangle or more). In the case of this example, the plurality of minute connecting surfaces 23 have a polygonal shape (a shape of a triangle or more) and form a curved surface.

Furthermore, in the above-described embodiment, the light control member is the reflector 2 arranged in the lighting chamber 10 together with the light source 13, and the control surface is provided in the reflector 2, and the light L1 from the light source 13 is provided. Is a reflecting surface 20 for reflecting as reflected light L2, an example thereof will be described. However, in the present invention, the light control member is an inner lens (light guide such as a light guide plate) arranged in the lamp chamber 10 together with the light source 13, or an outer lens (lamp lens 12) forming the lamp chamber 10. In some cases, it is an example. In the case of this example, the control surface is a refraction surface provided on at least one of the entrance surface and the emission surface of the inner lens and the outer lens. The refracting surface is controlled by refracting the light from the light source as refracted light.

The present invention is not limited to the above embodiment. For example, the numerical values in the positions of the luminous intensity measuring points P1 to P19, the ratio (%) of the minimum luminous intensity of each luminous intensity measuring points P1 to P19, the minimum luminous intensity of each luminous intensity measuring points P1 to P19, the number of micro-aiming surfaces 21 to be allocated, and the like are , Not limited to the above values. That is, the above numerical value is an example and is not limited to any.

1 Vehicle lighting equipment 10 Lamp room 11 Lamp housing 12 Lamp lens 13 Light source 2 Reflector (light control member)
20 Reflective surface (control surface)
21 Micro aiming surface 22 Micro reflecting surface 23 Micro connecting surface 24 Reference reflecting surface 2A Reflector 20A Reflecting surface (control surface)
21A Micro reflective surface 23A Micro connecting surface 24A Reference reflective surface 100 Reflective surface shape determining device 110 CPU
120 memory 130 GPU
140 Data output unit 200 Mold processing device 300 Mold C Mother point of micro-reflecting surface 22 before shifting C1 Mother point of micro-reflecting surface 22 after shifting HL-HR Left and right horizontal lines L1 Light L2 Reflected light P1 to P19 Aiming Point (luminosity measurement point)
TX Amount of shifting the base point C of the micro-reflecting surface 22 TZ Amount of protruding the micro-reflecting surface 22 VU-VD Vertical line X X-axis X1 Direction of shifting the base point C of the micro-reflecting surface 22 Y Y-axis ZZ-axis (tilted) Optical axis of the front micro-reflecting surface 22)
Z1 The optical axis of the reference micro-reflecting surface 22 after tilting (the optical axis of the micro-aiming surface 21)
θ Angle to shift the mother point C of the minute reflection surface 22 θX Angle to tilt the minute reflection surface 22 θY Angle to tilt the minute reflection surface 22

Claims (15)

It has a control surface that controls light to form the desired light distribution.
The control surface is divided into a plurality of micro control surfaces.
The plurality of micro control surfaces each have a micro aiming surface and a micro connecting surface.
The plurality of micro-aiming surfaces are arranged with a gap from each other, and light is applied to a predetermined aiming point among the plurality of aiming points in the light distribution.
Each of the plurality of the micro-aiming surfaces is arranged between the plurality of the micro-aiming surfaces and is connected to the plurality of the micro-aiming surfaces.
An optical control member for vehicle lamps, which is characterized by this. The plurality of micro-aiming planes are each distributed based on a low discrepancy amount sequence.
The light control member for a vehicle lamp according to claim 1. Each of the plurality of micro-aiming planes has a polygonal shape and forms a plane.
The optical control member for a vehicle lamp according to claim 1 or 2. The plurality of micro-aiming surfaces and the plurality of micro-connecting surfaces each form a plane in a polygonal shape.
The optical control member for a vehicle lamp according to claim 1 or 2. The plurality of micro-aiming surfaces and the plurality of micro-connecting surfaces each form a plane in a triangular shape.
The optical control member for a vehicle lamp according to claim 1 or 2. The plurality of micro-aiming surfaces and the plurality of micro-connecting surfaces are each connected by a triangular side.
The light control member for a vehicle lamp according to claim 5. Each of the plurality of micro-aiming planes is formed with reference to one equilateral triangle among the equilateral triangles obtained by dividing the micro-control plane having a regular hexagonal shape on a plane into six equal parts.
Each of the plurality of micro-connecting surfaces is formed with reference to the remaining five equilateral triangles among the equilateral triangles obtained by dividing the micro-control surface having a regular hexagonal shape on a plane into six equal parts.
The light control member for a vehicle lamp according to claim 6. Each of the plurality of micro-aiming surfaces has an angle at which the micro-control surface forming a plane is tilted, a direction in which the mother point that is the center of the micro-control surface is shifted, an amount of shifting the mother point, and an amount of protruding the micro-control surface. , At least one of which is determined based on the low discrepancy amount column,
The optical control member for a vehicle lamp according to any one of claims 1 to 7. The light distribution is a light distribution of a tail lamp function or a light distribution of a stop lamp function.
The optical control member for a vehicle lamp according to any one of claims 1 to 8. The control surface is a reflective surface that reflects light from a light source.
The optical control member for a vehicle lamp according to any one of claims 1 to 9. The reflective surface is provided on a reflector arranged in the lighting chamber together with the light source.
The light control member for a vehicle lamp according to claim 10. The control surface is a refracting surface that refracts light from a light source.
The optical control member for a vehicle lamp according to any one of claims 1 to 9. The refraction surface is provided on at least one of the entrance surface and the emission surface of the inner lens arranged in the lamp chamber together with the light source.
The light control member for a vehicle lamp according to claim 12. The refracting surface is provided on at least one of the incident surface and the exit surface of the outer lens forming the lamp chamber.
The light control member for a vehicle lamp according to claim 12. The members that form the light room and
The light source arranged in the lighting room and
The light control member for a vehicle lamp according to any one of claims 1 to 14.
To prepare
A lighting fixture for vehicles that is characterized by that.

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