JP2002231014A - Lighting fixture for vehicle using light-emitting diode - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make an effective use of light of a light-emitting diode, without relying on action of optical elements other than direct and reflective light in the case of a lighting fixture for a vehicle using a light-emitting diode. SOLUTION: With the lighting fixture for the vehicle 1, with the light-emitting diode 2 as a light source and equipped with a reflecting mirror 3, light reflected at and around a periphery of an opening of the reflecting mirror 3 out of light emitted from the light-emitting diode 2 is so controlled to irradiate in the direction almost parallel to the light axis L-L of the reflecting mirror 3. Then, the shape of a reflecting face 3a is so designed that the nearer point light is reflected to the light axis of the reflecting mirror 3, the larger angle light should have with the light axis in irradiating in the direction diagonal to the plane crossing the plane including the reflecting points P and the light axis. While a group of light sources is formed by arraying a plurality of light-emitting diodes, a reflecting mirror is fitted to each light-emitting diode, so that a required design in light distribution is realized without relying on refraction of a lens step.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has a structure in which a light emitting diode is used as a light source and a reflector is arranged around the light emitting diode.
The present invention relates to a technique for performing light distribution control without relying on the action of a lens step in a vehicle lamp using a light emitting diode.

[0002]

2. Description of the Related Art Among light emitting devices, a light emitting diode and an LED (Light Emitting Diode) are known.
e) is used for various display devices because it has a higher luminous flux and is advantageous in terms of longer life, lower power consumption, lower calorific value, and the like than conventional light sources such as incandescent lamps. For example, examples of application to a vehicle lamp include a high-mount stop lamp, a side marker lamp, and a tail stop lamp provided as measures for preventing a rear-end collision of a following vehicle.

When a light emitting diode is used as a light source of a lamp, a method of directly using only the direct light as irradiation light, and a method of providing a reflecting mirror around the light emitting diode so that the light reflected by the reflecting mirror and the light emitting diode can be used. There is known a method of utilizing direct light by using a reflector. In the latter method, a reflecting mirror having a paraboloid-shaped reflecting surface is used.

[0004]

However, if a parabolic reflector is used only for the light emitting diode, the light distribution required for the vehicle lamp cannot be sufficiently satisfied. For this purpose, it is necessary to diffuse the light in the left and right directions by the action of the lens step.

That is, a light emitting diode generally has a semiconductor chip (light emitting chip) inside, and the chip is protected by a transparent resin lens portion (sealing lens). The tip of the lens section has a shape having rotational symmetry about the optical axis, such as a spherical surface. As a result, the luminous intensity distribution of the element itself is a distribution close to a truncated cone, and is close to the optical axis. The luminous intensity is high near the central portion, and tends to decrease as the distance from the optical axis to the peripheral portion decreases.

FIG. 13 conceptually depicts an isoluminous distribution diagram of a general light-emitting diode. FIG. 13 shows a concentric pattern arrangement (e.g., The light intensity curve is substantially concentric. Therefore, there is a certain limit in light control using a reflecting mirror having a paraboloid of revolution as in the related art. For example, regarding the standard light distribution of a lamp, the width in the left-right direction (see line HH) Is the vertical direction (V-
It is difficult to deal with the luminous intensity distribution over a horizontally long range (see a range R indicated by a dashed-dotted rectangle in the drawing) which is wider than the width of the V-line (see the V line). For example, wasteful light is generated in the upper and lower portions of the lens, and this is a loss of light that does not meet the light distribution standard. To avoid such inconvenience, a lens step (fish-eye lens) disposed in front of the light emitting diode is required. Step, etc.) plays an important role in light distribution control.

However, there is a problem that the cost for processing for forming the lens step leads to an increase in cost, a loss of light quantity occurs when light passes through the lens step, or the formation of the lens step causes Problems such as being restricted by the design of the appearance occur.

Accordingly, an object of the present invention is to efficiently use the light of a light emitting diode in a vehicular lamp using a light emitting diode without using the action of optical elements other than direct light and reflection.

[0009]

SUMMARY OF THE INVENTION The present invention has the following construction to solve the above-mentioned problems.

[0010] Of the light emitted from the light emitting diode, the light reflected at a position near the periphery of the opening of the reflecting mirror attached to the light emitting diode is substantially parallel to the optical axis of the reflecting mirror. Emitted in the direction.

[0011] Of the light emitted from the light emitting diode, the light reflected by the reflecting mirror at a reflection point closer to the optical axis has a larger angle with the optical axis, so that the reflection point and the optical axis Is emitted in a direction intersecting with a plane (including the optical axis) orthogonal to the plane including

Therefore, according to the present invention, a light distribution required for a vehicle lamp can be obtained by the optical action of a reflector provided for a light emitting diode without the need for a refraction action of a lens step. Can be.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a view for explaining the structure of a main part of a lamp according to the present invention.

In the lamp 1, a light emitting diode (hereinafter referred to as "L
ED ". 2) is a light source, and a reflection mirror 3 is provided around the light source (or a predetermined range on the emission direction side).
In the drawing, only a partial shape (curve) of the reflecting mirror 3 when cut along a plane including the optical axis “LL” is shown. Also, an ellipse "EL" shown by a dashed line in the figure conceptually shows the opening of the reflecting mirror 3 (it is not actually seen from the side), and a radius "D" represents the opening radius. I have.

The reflecting mirror 3 according to the present invention has the following characteristics regarding the shape of the reflecting surface.

The light emitted from the LED 2 (FIG. 1
See ray m. The light reflected at a position near the periphery of the opening of the reflecting mirror 3 is emitted in a direction substantially parallel to the optical axis of the reflecting mirror.

In the light emitted from the LED 2, the light reflected by the reflecting mirror at a reflection point closer to the optical axis (see the light rays n, n,... In FIG. 1) is closer to the optical axis. (A diffusion angle indicated by “θ” in FIG. 1) is increased, and a plane orthogonal to a plane including the reflection point and the optical axis (a plane perpendicular to the plane of the drawing including the optical axis LL) Is emitted in a direction intersecting with

That is, for the light reflected near the opening of the reflecting mirror 3, “θ = 0” or “θ ≒ 0” and the optical axis L
While the light travels in a direction parallel to −L, the light reflected at the reflection point indicated by the point “P” has a larger θ value as the reflection point P is closer to the optical axis LL. (The value of the angle θ is small at a reflection point away from the light source position, and the value of the angle θ gradually increases as the reflection point approaches the light source.)

The reason why it is effective that the shape of the reflecting surface has such a reflection tendency is related to the light distribution required for the vehicle lamp, and the relationship between the two will be described in detail below.

FIG. 2 shows the luminous intensity distribution of the vehicle lamp (design target).
And the light distribution standards are compared, and the horizontal axis indicates the irradiation position (indicated by the irradiation angle) in the vertical or horizontal direction of the light distribution pattern (the right direction of the axis is “UP” (upward)). ) Or “RIGHT” (to the right), and the left direction of the axis indicates the opposite direction, that is, “DOWN” (down) or “LEF”.
T "(left) is shown. ), And the ordinate represents the light intensity axis CD to show the characteristics. In the drawing, a solid line TG indicates a target light distribution characteristic, and a dashed line ST indicates a standard characteristic. Note that the graph line ST has a substantially trapezoidal shape at the top of the center and a shape with its skirt portion extending slightly left and right, and the graph line TG is positioned outside the graph line TS so as to include the graph line TS. (However, the part near the peak has a rounded shape.) And the luminous intensity axis C
The shape is symmetrical with respect to D.

The portion surrounded by a circle A in FIG.
2 is obtained as a direct light contribution, and a portion surrounded by a circle B above the LED 2 and the reflecting mirror 3
Is obtained as a contribution of reflected light. As can be seen from the figure, it can be seen that the reflected light mainly contributes to the central portion having a high luminous intensity, and the direct light contributes to the foot portion thereof.

FIG. 3 shows the luminous intensity distribution (design target) of only the reflected light, and the setting of the vertical and horizontal axes is the same as in FIG.

As shown by a graph line 4, the light distribution characteristic has a substantially trapezoidal shape, and the diffusion angle is narrower than the direct light contribution range (the foot portion in FIG. 2).

As described above, of the light emitted from the LED, the light distribution is obtained by combining the direct light (or direct light) which is emitted and used as it is and the light which is used after being reflected once by the reflecting mirror. In order to satisfy the standard and perform light control efficiently, it is preferable that the base (base) shown in FIG. 2 is formed by direct light and the upper part (center) is formed by reflected light.

Incidentally, the light emitted from the LED generally has a characteristic of decreasing as the emission angle increases. As a result, the luminous intensity distribution of the LED alone is
It is high at the center (near the optical axis), and the luminous intensity decreases toward the periphery.

On the other hand, as shown in FIG. 3, the light distribution characteristic of the reflecting mirror has a substantially constant range where the luminous intensity is high at the center near the optical axis, and suddenly falls outside the range. Luminous intensity tends to decrease. Therefore, L
Utilizing the luminous intensity distribution characteristics of the ED, among the light reflected by the reflecting mirror, the light with a narrower emission angle of the LED (light closer to the optical axis LL and a smaller angle of incidence to the reflecting mirror) is more light. Axis L
The light may be reflected in a direction substantially parallel to -L so that light is emitted in the front direction of the lamp (contributes to the luminous intensity at the center). And as the emission angle increases,
If the diffusion angle is gradually increased so that the reflected light is directed toward the inside of the reflecting mirror (the side closer to the optical axis LL), light contributing to the peripheral portion (inclined portion) of the graph line 4 in FIG. 3 is obtained. Can be
In other words, a reflective surface suitable for such targeted light distribution is
This is satisfied by the above-mentioned geometric features. still,
This is because LEDs have directivity, cannot obtain radial light like an incandescent lamp, and cannot use light from the side surface of the lens unit.

Regarding the three-dimensional surface shape of the reflecting mirror, a method of forming a rotating body by rotating the sectional shape shown by the curve in FIG. 1 around the optical axis LL, and a method of not rotating around the optical axis. There is a method of forming a symmetrical surface shape, but the former is preferable from the viewpoint of ease of preparation and the like.

Further, in application to a vehicle lamp, a configuration is used in which a plurality of LEDs are arranged to form a light source group, and each LED is provided with a reflecting mirror surrounding the LED. The lens portion of each LED is divided into a direct light region and a reflected light region. In other words, regarding the light control of the LED, light that is directly applied to the outside of the lens unit through the area for direct light,
It is desirable to separate the light reflected by the external reflecting mirror after passing through the reflected light area, and to effectively use each light for the purpose for the contribution to the light distribution.

FIG. 4 is a diagram for explaining an example of the configuration of an LED. The LED 2 includes a (semiconductor) chip 5 for emitting light and a lens portion (or a sealing lens) 6 containing the chip. ing.

The lens portion 6 is formed using a colorless or colored transparent resin material. As shown in the figure, a portion 7 in front (upper part of the drawing) of the light emitting surface of the chip 5 is formed by the following two components.
Are divided into two areas (the numbers in parentheses indicate the respective signs), and different functions are assigned to the respective areas.

Area for direct light (8) area for reflected light (9).

The "LL" line shown in the figure indicates the optical axis of the LED element, and coincides with the optical axis of the reflecting mirror 3 described above.

The direct light area 8 occupies a range of a predetermined angle "α" at a position close to the optical axis. This area is an area for directly emitting light emitted from the chip 5 to the outside of the lens unit 6 and irradiating the light as direct light (light that is not reflected light outside the element).

On the other hand, the reflected light region 9 occupies a range of a predetermined angle “β” adjacent to the peripheral portion of the direct light region 8 as shown in the figure, or straddles the side surface of the lens portion 6. Specified in the range. This area is required for irradiating the light emitted from the chip 5 to the reflecting mirror 3 provided outside the element after passing through the lens unit 6. That is, the light emitted from the main area to the outside of the lens unit 6 is once reflected by the reflecting surface 3a formed on the reflecting mirror 3, and then irradiated forward (in the direction of illumination of the lamp).

By the way, as described above, when the lens portion of the LED has a simple rotationally symmetric shape, light that would otherwise be wasted is utilized by making full use of the optical action of the lens step. It is necessary to correct by the refraction effect of the lens step and use it as effectively as possible.However, when light passes through the lens step, a loss of light occurs, or in the formation of the lens step Such cost problems and design constraints (such as the inside of the lamp being invisible and invisible) are caused by the inability to use an outer lens or the like without a lens step.

Therefore, in order to avoid these inconveniences, the tip of the lens portion of the LED is used as a region for direct light, and the shape of the region is not rotationally symmetric about the optical axis of the LED element. Formed. For example, assuming a plane perpendicular to the optical axis of the LED element, the shape of the direct light area viewed from the direction along the optical axis is not circular, and May be designed so that the width along one axis (first axis) corresponding to the vertical direction is wider than the width along the other axis (second axis) corresponding to the vertical direction (the second axis). The first axis is the long axis,
An ellipse having the second axis as a short axis, a polygon having a long angle in the first axis direction, and an angled polygon. ).

The reflected light region 9 including the peripheral portion of the direct light region 8 or the side surface of the lens portion is formed in a rotationally symmetrical shape (cylindrical, conical, etc.) around the optical axis of the LED element. Is preferred. The reasons include that the lens portion is easy to make and that the light control on the reflection surface is not complicated.

As for the direct light region 8 and the reflected light region 9, there are a method of forming both with the same resin material and a method of forming both with materials having different optical characteristics. The former is preferred from the viewpoint of easiness. Then, there are a method of dividing the two as a divided region so that the step is visually clear, and a method of forming both regions continuously so as to be continuous without any step. Considering the above, the latter is more preferable.

Of the light emitted from the LED chip 5 of FIG. 4, the light that has passed through the direct light region 8 is emitted to the outside of the lens portion 6, and then emitted from the chip and passed through the reflected light region 9. The reflected light is reflected after being emitted toward the above-mentioned reflecting mirror 3 arranged for the LED, so that the direct light and the reflected light are efficiently combined in accordance with the function, and FIG. 3 can be obtained as shown in FIG.

In this manner, a transparent lens member having no lens step or a lens member having almost no lens action can be used as the outermost member of the lamp. That is, while such a lens member is arranged in front of the LED and the reflecting mirror,
Since the direct light from the lens and the reflected light by the reflecting mirror can be configured to be emitted outside the lamp through the lens member,
The effect of the dimming in the lens step is eliminated (for example, the use of a smaller number of LEDs is sufficient, which is advantageous in terms of cost, etc.), and the design is not restricted (the interior of the lamp can be seen transparently). Etc.) In addition, when the lamp 1 is turned on, the contour shines in accordance with the peripheral edge of the reflecting mirror 3, so that the contour becomes clearer and the texture is improved. (The distance between the intersection of the optical axis and a plane perpendicular to the optical axis, including the opening edge, and the light emission center of the LED; see "K" in FIG. 1). Advantages such as a compact configuration can be obtained.

[0041]

5 to 12 show an embodiment of the present invention, and show an example in which the present invention is applied to an automotive lamp (a tail stop lamp or the like).

FIG. 5 schematically shows the front shape of the lamp 10, and a lamp space defined by a lens member 11 made of a transparent material (such as synthetic resin or glass) and a lamp body 12. Inside, a first lamp unit 13,
A second ramp section 14 is provided.

The first lamp section 13 functions as, for example, a stop lamp, and includes a group of light sources using a large number of LEDs 15, 15,... And reflecting mirrors 16, 16 provided for each of these LEDs. (In FIG. 5, the LED and the reflecting mirror are shown by broken lines for convenience of illustration, but these are visible from the lens member 11 in a transparent state.) In this example, three irradiation units 17, 17, 17 in which six light source units each including the LED 15 and the reflecting mirror 16 are arranged in a horizontal row are arranged in the vertical direction.

FIG. 6 is a sectional view of the first lamp portion 13 when the lamp 10 is cut along the longitudinal direction (horizontal direction), and FIG. 7 is a direction perpendicular to the direction (vertical direction). (Direction).

As shown, the first ramp section 13 is
A support member (base member) 18 formed in a step shape using a synthetic resin material, and a reflector member 19 that supports a lens portion of each LED and has a reflecting mirror 16 formed on the LED 15 are provided.

Each of the steps of the support member 18 is provided with a holder 20, 20,... So that individual LEDs can be arranged on their flat places. When the lead (outer lead) is fitted, electrical connection with a wiring member (not shown) is made.

The reflector member 19 includes the reflecting mirrors 16 and 1
Are provided, and the lens portions of the respective LEDs are inserted through light source disposing holes respectively formed in the central portions of the respective reflecting mirrors. Each reflecting mirror is formed with a reflecting surface (having a rotationally symmetric shape around the optical axis) by vapor deposition of aluminum, and LE is formed.
The function of reflecting the light emitted from the lens portion of D15 toward the irradiation direction of the lamp 10 is provided.

It should be noted that members 21, 21, 21 (FIGS. 5 and 6) provided at positions adjacent to the reflector member 19 are provided.
reference. ) Is a retroreflector.

When positioning the reflector member 19 with respect to the support member 18, for example, as shown in FIG. 7, a positioning portion 22 projecting from the reflector member 19 to the support member 18 side is supported by the support member 18. Hole 23
, So that they can be adjusted so as to have a predetermined positional relationship.

The portion of the lens member 11 that constitutes the first lamp portion 13, that is, the inner surface area corresponding to the LED 15 and the reflecting mirror 16, has no lens steps formed at all, and the lens member 11 is in a transparent state. Therefore, the lens portion of each LED 15 and the surface of the reflector member 19 can be seen from the outside of the lamp.

As shown in FIG. 7, the second lamp section 14 includes an incandescent lamp 24 as a light source, a reflecting mirror 25 and an inner lens 26, and functions as, for example, a turn signal lamp. In the lens member 11, a portion corresponding to the lamp portion 14 is provided with a lens 27 on which a number of lens steps (not shown) are formed, and the lens 27 is provided outside the inner lens 26. It is a configuration that is arranged.

FIGS. 8 to 11 show examples of the structure of the LED element.

The LED 15 has a lens portion 28 formed of a sealing resin such as an epoxy resin, and has two leads 29 and 29. Note that, of these leads, the portion covered with the sealing resin is the inner lead 29a.
And the portion protruding to the outside is the outer lead 29b.
It is. A chip (not shown) is arranged in a concave portion formed in the cathode-side inner lead, and the chip is connected to the anode-side inner lead by wire bonding.

The distal end portion 28A of the lens section 28 is the above-described area for direct light, and as shown in FIG. 9, the shape of the lens section 28 as viewed from the optical axis direction is elliptical. In this example,
The major axis of the ellipse corresponds to the left-right direction of the lamp 10, the minor axis of the ellipse corresponds to the vertical direction of the lamp 10, and such a positional relationship is obtained when the LED 15 is mounted on the holder 20. It has become.

As shown in FIG. 8, the area for the direct light has an elliptical cross section in a plane including the axis extending vertically and the optical axis (of the lamp). As shown, the cross-sectional shape in a plane including the axis extending in the left-right direction (of the lamp) and the optical axis is circular (constant curvature). The focal position of the ellipse and the center position of the circle are set at a predetermined position in front of the chip or the like according to the positional relationship with the chip in the lens unit.

In the lens section 28, the direct light area 28A
Is used as a region for reflected light, and in this example, as shown in FIG. 9, it has a circular shape when viewed from the optical axis direction of the element. Then, the cross-sectional shape in a plane including the axis extending in the vertical direction or the horizontal direction (of the lamp) and the optical axis is circular (constant curvature), and has a shape having rotational symmetry about the optical axis. Light emitted from the LED chip and emitted to the outside of the lens unit 28 through the reflected light area 28B reaches the reflecting surface of the reflecting mirror 16 and is reflected.

The outer shape of the lens portion 28 excluding these regions has a cylindrical shape, but has nothing to do with the optical effect on light from the chip. Further, in this example, a step is generated between the direct light region 28A and the reflected light region 28B, but it is also possible to design such that both are continuously connected on the outer surface of the lens portion 28. .

The outer lead 29b of the LED element is made of a conductive material having appropriate elasticity and high thermal conductivity (for example,
As shown in FIG. 11, a wide portion 29c is formed for each lead. In addition, a pair of circular holes 30, 30 is provided at a position near an end in the longitudinal direction in the portion, and a long hole 31 extending in the longitudinal direction is formed between them.

As shown in FIGS. 8 to 10, the long hole 31 is formed so that each outer lead 29b is formed in the wide portion 29 thereof.
A slit is formed by bending the center of c into a U-shape, and a wiring member (not shown) is press-fitted into the slit to perform electrical connection and mechanical fixation of the lead. The circular hole 30 functions as a guide hole for preventing the outer lead 29b from being displaced during bending.

FIG. 12 schematically shows an equal luminous intensity distribution of the lamp 10, in which a horizontal axis indicates a horizontal (or horizontal) axis "HH", and a vertical axis indicates a vertical (or vertical) axis. The shape and tendency of the isoluminous curve are shown by taking the axis “VV” of the direction (direction) (see FIGS. 2 and 3 for the design targets and standards of the luminous intensity distribution).

The horizontal, substantially elliptical isoluminous curves contributing to the luminous intensity distribution near the center are concentrated in the center, and this portion "E" mainly shows the contribution of the light distribution by the direct light of the LED 15. I have. A portion “F” where the density of the isoluminous curve is sparse around it indicates the contribution of the light distribution by the reflected light emitted from the LED 15 via the reflecting mirror 16.

As compared with the example shown in FIG. 13, it can be seen that the use efficiency of light is high because the useless light is reduced in the vertical direction. As described above, the shape of the direct light region 28A in the lens unit 28 is an elliptical shape that is long to the left and right as viewed from the optical axis direction of the element, and the range of direct light in the luminous intensity distribution conforms to the light distribution standard. Therefore, the distribution becomes long in the horizontal direction. The shape of the reflected light area 28B in the lens portion 28 is a rotating body around the optical axis, and the reflecting mirror 16 has rotational symmetry around the optical axis. It shows a concentric distribution in the range it carries. The direct light area 28A and the reflected light area 28B
Is obtained as a result of performing light distribution design, simulation, and the like while distinguishing functions of each region.

[0063]

According to the inventions according to the first and fourth aspects, the optical action of the reflecting mirror attached to the light emitting diode does not require the refracting action of the lens step, so that it can be applied to the vehicle lamp. Since the necessary light distribution can be obtained, the problem of the cost for forming the lens steps and the problem of the decrease in the amount of light can be solved, and the appearance design is not restricted by the formation of the lens steps.

According to the second aspect of the present invention, the lens portion of the light emitting diode is divided into the direct light region and the reflected light region, and the light from each region is efficiently combined, and the luminous intensity distribution is controlled by the reflected light. Light contributing to the central portion can be secured, and a luminous intensity distribution that sufficiently satisfies the light distribution standard of the vehicular lamp can be obtained.

According to the third aspect of the present invention, it is possible to prevent an adverse effect caused by the shape of the lens portion of the light emitting diode having rotational symmetry about the optical axis.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of characteristics of a reflecting mirror according to the present invention.

FIG. 2 is a diagram showing a target light distribution and a standard of a vehicular lamp.

FIG. 3 is a diagram showing a target light distribution by reflected light.

FIG. 4 is an explanatory diagram illustrating a configuration example of a light emitting diode.

FIG. 5 shows an embodiment of the present invention together with FIGS. 6 to 12, and is a schematic front view of a lamp.

FIG. 6 is a horizontal sectional view of a main part.

FIG. 7 is a vertical sectional view of a main part.

8 shows an example of the configuration of an LED together with FIGS. 9 to 11, and FIG. 8 is a side view.

FIG. 9 is a front view of the LED.

FIG. 10 is a side view seen from another direction.

FIG. 11 is a side view showing a state before bending the outer lead.

FIG. 12 is a diagram for explaining a light distribution of a lamp.

FIG. 13 is a diagram for explaining a conventional problem.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Lamp, 2 ... Light emitting diode, 3 ... Reflecting mirror, 5 ... Chip, 6 ... Lens part, 8 ... Direct light area, 9 ... Reflected light area, 10 ... Vehicle lamp, 11 ... Lens member

Claims (4)

[Claims] 1. A vehicular lamp using a light emitting diode, wherein the light emitting diode is used as a light source and a reflecting mirror is provided for the light emitting diode. The light reflected at a position near the periphery is emitted in a direction substantially parallel to the optical axis of the reflecting mirror, and of the light emitted from the light emitting diode,
In the reflecting mirror, light reflected at a reflection point closer to the optical axis has a larger angle with respect to the optical axis, and intersects a plane orthogonal to a plane including the reflection point and the optical axis. A vehicular lamp using a light emitting diode, which is emitted to a vehicle. 2. A vehicular lamp using the light emitting diode according to claim 1, wherein a plurality of light emitting diodes are arranged to form a light source group, and a reflecting mirror surrounding each light emitting diode is provided. The light emitting diode is provided with a direct light region and a reflected light region for the lens portion of the light emitting diode, and light emitted from a chip of the light emitting diode passes through the direct light region. While being emitted to the outside of the lens portion, the light emitted from the chip and passing through the region for reflected light is emitted and reflected toward the reflecting mirror arranged for the light emitting diode, A vehicle lighting device using a light emitting diode characterized by the above-mentioned. 3. The vehicular lamp using the light emitting diode according to claim 2, wherein a tip of a lens portion of the light emitting diode is used as a direct light area, and the area is non-rotationally symmetric about an optical axis of the element. The peripheral portion of the direct light region or the side surface of the lens portion is used as a reflected light region, and the region is formed in a rotationally symmetric shape around the optical axis of the element. A vehicular lamp using a light-emitting diode, characterized in that: 4. A vehicular lamp using a light emitting diode according to claim 1, 2 or 3, wherein a lens member having no lens step or a lens having almost no lens action. The member is disposed in front of the light emitting diode and the reflecting mirror, and the direct light from the light emitting diode and the reflected light from the reflecting mirror are emitted outside the lamp through the lens member. A vehicular lamp using light emitting diodes.