JP2006086062A - Projection type head lamp for car - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a projection type head lamp for an automobile equipped with a light projection unit incorporating an LED which is the light source for a clearance lamp. <P>SOLUTION: This is the projection type head lamp equipped with the light projecting unit U in which a reflector 26 of nearly a bowl shape, a light source 24 arranged at a first focal spot of the reflector 26, and a projection lens 28 arranged ahead than a second focal spot of the reflector 26 are integrated, and the light sources (LED) 40 for the clearance lamp are installed in the light projection unit U. An aperture 50 is installed on the peripheral wall of the light projection unit that is communicated with outside the unit, then inside the aperture 50, an LED 40 and a sub-reflector 42 that diffuses light emitted by the LED 40 and guides the light to the reflector 26 are installed. At the position of the aperture 50, temperature does not become as high as that inside the unit U, and the LEDs 40 do not suffer any thermal damages. The light emitted by the LEDs 40, which has an intense directivity (of narrow diffusion angle), become diffused light reflected by a diffusion reflecting face 44a of the sub-reflector 44, and is reflected by the reflector 26 to make the whole projection lens 28 emit light. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a projection-type automotive headlamp including a light projection unit that projects and distributes light source light reflected by a substantially bowl-shaped reflector to the front by a projection lens, and in particular, a clearance lamp provided in the light projection unit. The present invention relates to a projection-type automotive headlamp that also functions as a clearance lamp when a projection lens is turned on by light emission from a light source.

The following Patent Document 1 is known as this type of prior art. Here, as shown in FIG. 6, a reflector 5 equipped with a light source 4 and a front projection lens 6 are integrated through a lens holder 7 in a lamp chamber defined by a lamp body 1 and a front lens 2. The light projection unit A is accommodated, and an incandescent bulb 8 which is a light source for a clearance lamp is disposed in the unit A.
Japanese Utility Model Publication No. 4-43501

  However, in the prior art described above, the incandescent bulb 8 is used as the light source for the clearance lamp. However, the incandescent bulb 8 has large power consumption and heat generation, and has a short life. Further, since the incandescent bulb 8 is relatively large, its arrangement position is restricted so as not to block the light contributing to the light distribution formation of the headlamp, or the incandescent bulb 8 can be seen through the projection lens 6. There were problems such as poor appearance.

  Therefore, the inventor considered that a light-emitting diode (hereinafter referred to as LED) that consumes less power and generates less heat than an incandescent bulb and can be used as a light source for a clearance lamp.

  However, the following two issues were raised during the development process. First, since the heat resistance of the LED is inferior to that of the incandescent bulb, it cannot be used in the same form as the conventional technology (incandescent bulb) in the light projection unit that becomes high temperature. Second, the LED has a stronger directivity of the emitted light than the incandescent bulb (the diffusion angle is narrow), the emitted light is guided only to a part of the area of the projection lens, and the entire projection lens does not emit light. Visibility is poor when the clearance lamp is lit.

  Therefore, the inventor provides an opening communicating with the outside of the unit on the lower surface wall of the light projection unit, and an LED is provided below the opening, thereby solving the first problem (heat problem). I thought. In addition, with respect to the second problem (problem that the diffusion angle is narrow), for example, it is configured such that the emitted light of the LED is diffusely reflected by the sub-reflector and guided to the reflector, or the emitted light of the LED is diffused by the diffusing lens. It was thought that the entire projection lens would emit light if configured to diffuse and guide to the projection lens. And when the inventor made a prototype and confirmed its effect, it was confirmed that it was very effective, and this time it came to propose this invention.

  The object of the present invention was made based on the problems of the prior art and the knowledge of the inventor described above. The object of the present invention is for a projection type automobile equipped with a light projection unit incorporating an LED which is a light source for a clearance lamp. It is to provide a headlamp.

In order to achieve the above object, in the projection type automotive headlamp according to claim 1, a substantially saddle-shaped reflector, a light source arranged at a first focus of the reflector, and a second focus of the reflector In a projection type automotive headlamp provided with a light projection unit integrated with a projection lens arranged in front, and provided with a light source for a clearance lamp in the light projection unit,
An opening communicating with the outside of the light projection unit is provided in the peripheral wall of the light projection unit, and the LED serving as the light source for the clearance lamp and the light emitted from the LED are diffused into the reflector or the projection lens. A sub-reflector for guiding was arranged.

In order to achieve the above object, in a projection type automotive headlamp according to claim 4, a substantially saddle-shaped reflector, a light source disposed at a substantially first focal point of the reflector, and a second of the reflector. In a projection type automotive headlamp comprising a light projection unit integrated with a projection lens arranged in front of the focal point, and provided with a light source for a clearance lamp in the light projection unit,
An opening communicating with the outside of the light projection unit is provided in the peripheral wall of the light projection unit, and the LED serving as the light source for the clearance lamp and the light emitted from the LED are diffused into the reflector or the projection lens. A diffusing lens for guiding was arranged.
(Operation) The LED consumes less power and has a longer life than the incandescent bulb. Moreover, although LED is inferior in heat resistance compared with an incandescent bulb, the opening of the peripheral wall of the light projection unit in which the LED is arranged communicates with the outside of the light projection unit. The LED placed in the opening is not thermally damaged.

  Moreover, since LED is compact, the layout when arrange | positioning to a light projection unit is also easy. In particular, a compact LED arranged at the opening of the peripheral wall of the light projection unit is far away from the optical axis of the projection lens, so that the LED is not visible through the projection lens, and the clearance lamp (and headlamp) is not lit. The appearance (visibility) of the lamp is also improved.

  In addition, the LED has stronger directivity of the emitted light than the incandescent bulb (the diffusion angle is narrow), so that the LED emitted light is reflected to the reflector or the projection lens by a sub-reflector having a smooth reflecting surface. However, it is difficult to make the entire projection lens emit light because the emitted light of the LED is guided only to a partial region of the reflector or the projection lens. However, in claim 1, the diffuse reflection surface on the surface of the sub-reflector is an LED. The diffused light is diffused and guided to a wide area of the reflector or projection lens, so that the entire projection lens can be reflected by light reflected by the wide area of the reflector or by light directly directed to the wide area of the projection lens. Emits light.

  Further, if the LED output light is directly applied to the reflector or the projection lens as it is, the LED output light is guided only to a partial area of the reflector or the projection lens, and it is difficult to cause the entire projection lens to emit light. However, in claim 4, the diffusion step of the diffusion lens disposed between the LED and the projection lens converts the emitted light of the LED (diffuse lens transmission light) into diffused light and guides it to a wide range of the reflector or the projection lens. The entire projection lens emits light by light reflected in a wide area of the light or directly guided to a wide area of the projection lens.

  Further, in claim 1 (claim 4), when the emitted light of the LED is directly guided to the projection lens by the sub-reflector (diffuse lens), the emitted light of the LED is compared with the case where the reflected light is guided in the middle. Since the optical path length to the projection lens is short and the energy loss of light is small, the light emission amount of the projection lens is large accordingly.

According to claim 2, in the projection type automotive headlamp according to claim 1, the sub-reflector is configured to have a vertically diffusive reflecting surface in which a cylindrical step extending in the horizontal direction is continuous in the vertical direction. .
(Operation) The diffuse reflection surface in which the cylindrical step extending in the horizontal direction continues in the vertical direction greatly diffuses and reflects the reflected light from the sub-reflector in the vertical direction for each cylindrical step. It is possible to smooth the light quantity difference that the light quantity is large and to reduce the vertical dimension of the sub reflector.

According to a third aspect of the present invention, in the projection type automotive headlamp according to the first or second aspect, the sub-reflector is composed of a left-right diffusive reflecting surface composed of a rotating paraboloid around the optical axis of the LED.
(Operation) The left-right diffusive reflecting surface formed of a rotating paraboloid around the optical axis of the LED can diffuse and reflect the emitted light of the LED in a wide range in the left-right direction, and the sub-reflector based on the focal position of the left-right diffusive reflecting surface Since the diffusion angle of (the left and right direction diffuse reflection surface) can be set freely, the shape of the sub reflector and the degree of freedom of arrangement are high.

According to a fifth aspect of the present invention, in the projection type automotive headlamp according to any one of the first to fourth aspects, a prism lens is provided on at least a part of the outer periphery of the projection lens.
(Operation) When the clearance lamp is turned on, the projection lens and the prism lens outside thereof emit light, and the light emitting area is larger than that in the case where only the projection lens emits light.

  In addition, when the headlamp is lit (when the clearance lamp and the headlamp are lit), the area corresponding to the optical axis of the projection lens (near the center of the projection lens) emits particularly bright light, and the entire projection lens and the outside of the projection lens. The prism lens also emits light brightly, and a novel visibility (appearance) that cannot be seen in the past can be obtained.

  As is clear from the above description, according to the projection type automotive headlamp according to claim 1 or claim 4, when the clearance lamp is lit, including the light projection unit including the LED as the light source for the clearance lamp, and Provided is a projection type automotive headlamp that is excellent in visibility when not lit.

  Further, in claim 1 (claim 4), when the emitted light of the LED is directly guided to the projection lens by the sub-reflector (diffuse lens), the clearance lamp is lit compared to the case where the light is guided through the reflector in the middle. Since the projection lens emits light more brightly, the visibility when the clearance lamp is lit is further improved.

  According to the second aspect, even if the projection amount of the sub-reflector to the outside of the light projection unit is small, the entire projection lens, in particular, the entire diffusion direction by the cylindrical step emits light with substantially uniform brightness. In addition to excellent visibility, the size of the light projection unit and thus the front view shape of the headlamp can be made compact.

  According to the third aspect, since the degree of freedom of the shape and arrangement of the sub-reflector is high, the clearance lamp can be easily designed accordingly.

  According to the fifth aspect, the visibility from a distance when the clearance lamp is lit is improved, and the novel visibility (look) when the headlamp is lit (when the clearance lamp and the headlamp are lit) Can be differentiated from other headlamps.

  Next, embodiments of the present invention will be described based on examples. 1 and 2 show a projection type automotive headlamp according to a first embodiment of the present invention, FIG. 1 is a longitudinal sectional view of the headlamp, and FIG. 2 is a sub-reflector which is a main part of the headlamp. It is a figure which shows the structure of the diffuse reflection surface of this, (a) is a longitudinal cross-sectional view of a sub-reflector, (b) is a horizontal cross-sectional view (cross-sectional view along line II-II shown in FIG. 2 (a)) of a sub-reflector. is there.

  In FIG. 1, reference numeral 10 denotes a synthetic resin lamp body of a projection-type automobile headlamp formed in a container shape that opens forward. A transparent front cover 12 is assembled to the front opening of the lamp body 10. A light room S is defined. In the lamp chamber S, a light projection unit U in which a projection lens 28 is integrated is accommodated in front of a reflector 26 provided with a light source, and the light projection unit U can be tilted and adjusted by an aiming mechanism.

  That is, the aiming mechanism interposed between the lamp body 10 and the light projection unit U is not illustrated and described, but is located at a position orthogonal to the front view with respect to the left and right aiming screws, the upper and lower aiming screws, and the two aiming screws. It is mainly composed of tilting fulcrums such as provided ball joints. Then, the irradiation axis of the headlamp (the optical axis of the light projection unit U) L can be tilted and adjusted in the vertical and horizontal directions (aiming) by rotating the vertical aiming screw and the horizontal aiming screw. Reference numeral 18 denotes an extension reflector that surrounds the light projection unit U and is disposed so as not to interfere with the light projection unit U.

  The light projection unit U includes an aluminum die-cast reflector 26 having a substantially bowl shape and a substantially elliptical shape when viewed from the front side, into which a discharge bulb 24 that is a light source is inserted, and a transparent surface disposed in front of the reflector 26. The projection lens 28 made of glass and the prism lens 29 made of transparent resin are formed in a ring shape, the front end portion in the axial direction grips the prism lens 29, and the rear end portion in the axial direction is fixed to the front side of the reflector 26. The aluminum die-cast lens holder 30 is integrated.

  An ellipsoidal reflecting surface 26a subjected to aluminum vapor deposition is formed inside the reflector 26. The ellipsoidal reflecting surface 26a has a first focal point F1 and a second focal point F2, and the discharge valve 24 is located at the first focal point F1. The discharge center is located. Further, the focal point of the projection lens 28 is in the vicinity of the second focal point F2 of the elliptical reflecting surface 26a, and the light emitted from the bulb 24 is reflected by the reflecting surface 26a of the reflector 26 and condensed at the second focal point F2. The projected light is projected and distributed by the projection lens 28 as substantially parallel light in front of the headlamp.

  An opening 50 communicating with the outside of the light projection unit U is provided on the lower wall of the reflector 26. An LED 40 fixed to the lens holder 30 is disposed obliquely upward and forward below the opening 50. A sub-reflector 42 that converts the emitted light into diffused light and guides it to the reflecting surface 26 a of the reflector 26 is also fixed to the lens holder 30. The LED 40 and the sub-reflector 42 are attached and integrated in advance to an obliquely extending bracket 30 a below the lens holder 30, and the LED 40 and the sub-reflector are placed at predetermined positions in the opening 50 by assembling the lens holder 30 to the reflector 26. 42 is arranged.

  The projection lens 28 and the prism lens 29 are integrated so that the flange-shaped peripheral edge of the projection lens 28 is engaged with a concave groove 29d provided on the front edge side of the prism lens 29 to prevent the projection lens 28 from coming off. The prism lens 29 has a vertically divided two-divided structure (upper lens 29a and lower lens 29b), and a joint surface between the two lenses 29a and 29b is bonded and fixed by, for example, an adhesive, so that the projection lens 28 and A prism lens 29 is integrated.

  Further, an inclined surface 29c that is substantially opposite to the reflecting surface 26a of the reflector 26 is provided on the back side of the inner periphery of the prism lens 29, and the light that is reflected by the reflecting surface 26a of the reflector 26 and travels toward the prism lens 29. Can accurately enter from the inclined surface 29c.

  Reference numeral 16 denotes a ballast circuit unit fixed to the bottom of the lamp body 10, and an output cable 17 led out from the ballast circuit unit 16 is connected to the rear end of the discharge bulb 24.

  As shown in FIGS. 2A and 2B, the reflecting surface 42a of the sub-reflector 42 is formed of a rotating paraboloid around the optical axis L1 of the LED 40 with the light emitting portion of the LED 40 as a focal point f1. Further, as shown in FIG. 2A, the reflection surface 42a has a structure in which cylindrical steps 43 extending in the horizontal direction (left and right direction) are continuous in the vertical direction, and light emitted from the LED 40 is reflected by the reflection surface 42a. As a result, the light is largely diffused in the vertical direction, and is reflected light having a vertical diffusion angle θy and guided to the reflector 26 (the reflection surface 26a). Further, as shown in FIG. 2B, the reflection surface 42a is formed to have a predetermined left-right width d, and the emitted light of the LED 40 is reflected by the reflection surface 42a, so that the reflection surface 26a of the reflector 26 is reflected. The light is guided to the reflector 26 (reflection surface 26a) as reflected light having a horizontal diffusion angle θx corresponding to the left-right width.

  As described above, the light emitted from the LED 40 is reflected by the reflecting surface 42 a of the sub-reflector 42, thereby being guided to the reflector 26 as diffused light diffused vertically and horizontally, and further reflected forward by the reflecting surface 26 a of the reflector 26. As a result, the projection lens 28 and the prism lens 29 are guided substantially evenly, and the projection lens 28 and the prism lens 29 as a whole emit light.

  In the headlamp of this embodiment configured as described above, when the clearance lamp is turned on, the light emitted from the LED 40 passes through the diffuse reflection surface 42a of the sub-reflector 42 and the reflection surface 26a of the reflector 26 as the diffused light. Since the projection lens 28 and the entire prism lens 29 emit light substantially uniformly guided to the lens 29, the light-emitting area is larger than when only the projection lens 28 emits light, so that visibility from a distance is improved.

  In particular, in the diffuse reflection surface 42a in which the cylindrical step 43 extending in the horizontal direction continues in the vertical direction, the reflected light from the sub-reflector 42 is greatly diffused and reflected in the vertical direction for each cylindrical step 43, so that it corresponds to the optical axis of the LED. The light quantity difference that the light quantity is larger in the vicinity of the position is smoothed, the light emission quantities of the projection lens 28 and the prism lens 29 are averaged in the vertical direction, and the visibility when the clearance lamp is lit is further improved. .

  Further, when the headlamp is lit (when the clearance lamp and the headlamp are lit), the vicinity of the center of the projection lens 28 emits light particularly brightly, and the entire projection lens 28 and the prism lens 29 outside thereof emit light brightly, A novel visibility (appearance) that cannot be seen in the past can be obtained.

  Further, the LED 40 is superior in that it consumes less power and has a longer life compared to the incandescent bulb, and the LED is inferior in heat resistance to the incandescent bulb, but the light projection unit U in which the LED 40 is disposed. Since the lower portion of the opening 50 in the lower wall communicates with the outside of the light projection unit U and does not reach a temperature as high as the inside of the unit U, there is no possibility that the LED 40 is thermally damaged.

  Further, the LED 40 is compact and is disposed below the opening 50 on the lower surface wall of the light projection unit U, and is greatly separated downward from the optical axis of the projection lens 28, so that the LED 40 passes through the projection lens 28 and the prism lens 29. It is not visible, and the appearance (visibility) of the lamp when the clearance lamp (and headlamp) is not lit is also good.

  FIG. 3 shows a longitudinal sectional view of an optical projection unit which is a main part of a projection type automotive headlamp according to a second embodiment of the present invention.

  In the first embodiment described above, the light emitted obliquely upward to the front of the LED 40 is diffusely reflected backward by the sub-reflector 42, and this light is reflected by the reflector 26 and guided almost uniformly to the projection lens 28 and the prism lens 29. However, in the second embodiment, the light emitted obliquely upward to the rear of the LED 40 is guided to the reflector 26 through the diffusion lens 44.

  That is, the LED 40 has a cap-type diffusing lens 44 attached and integrated with an opening on the side wall (the opening is indicated by 45), and diffuses transmitted light vertically and horizontally on the surface side of the diffusing lens 44. A diffusion step (fisheye step, grain step, etc.) 44a is provided. For this reason, the light emitted from the LED 40 passes through the diffusion lens 44 and is guided to the reflector 26 as light diffused vertically and horizontally, and further reflected by the reflecting surface 26a to be substantially uniform on the projection lens 28 and the prism lens 29. Led to.

  Others are the same as those in the first embodiment, and the same reference numerals are given to omit redundant description.

  FIG. 4 shows a longitudinal sectional view of an optical projection unit which is a main part of a projection type automotive headlamp according to a third embodiment of the present invention.

  In the first and second embodiments described above, the light emitted from the LED 40 is guided to the reflector 26 as diffused light by the sub-reflector 42 or the diffusing lens 44, and the light reflected by the reflector 26 is substantially transmitted to the projection lens 28 and the prism lens 29. In this third embodiment, the light emitted obliquely upward and rearward of the LED 40 is directly guided to the projection lens 28 and the prism lens 29 via the sub-reflector 42. Has been.

  That is, the light emitted from the LED 40 is diffused light that is reflected by the diffuse reflection surface 42a of the sub-reflector 42 and diffused in the vertical and horizontal directions, and is substantially uniformly guided to the projection lens 28 and the prism lens 29. The entire prism lens 29 emits light.

  Others are the same as those in the first and second embodiments, and the same reference numerals are given to omit redundant description.

  In this embodiment, since the optical path length until the light emitted from the LED 40 reaches the projection lens 28 is shorter than that of the first and second embodiments described above, the energy loss of light is small, and the projection lens 28 and the prism are correspondingly reduced. The light emission amount of the lens 29 is large, and the visibility when the clearance lamp is lit is excellent.

  FIG. 5 shows a longitudinal sectional view of an optical projection unit which is a main part of a projection type automotive headlamp according to a fourth embodiment of the present invention.

  In the third embodiment described above, the light emitted obliquely upward and rearward of the LED 40 is configured to be guided to the projection lens 28 and the prism lens 29 via the sub-reflector 42. In the fourth embodiment, Light emitted obliquely upward to the front side of the LED 40 is directly guided to the projection lens 28 and the prism lens 29 via the diffusion lens 44.

  That is, the emitted light of the LED 40 is diffused light that is diffused vertically and horizontally by passing through the diffusing lens 44, and is substantially uniformly guided to the projection lens 28 and the prism lens 29. The whole emits light.

  Others are the same as those in the first, second, and third embodiments, and the same reference numerals are used to omit redundant description.

  In the present embodiment as well, as in the third embodiment, the light path length until the light emitted from the LED 40 reaches the projection lens 28 is shorter than in the first and second embodiments. The loss is small, the light emission amount of the projection lens 28 and the prism lens 29 is large, and the visibility when the clearance lamp is lit is excellent.

  In the first to fourth embodiments described above, the LED 40 is disposed in the opening 50 provided in the lower surface wall of the light projection unit U. The formation position of the opening 50 is the lower surface wall of the light projection unit U. The LED 40 may be disposed in the opening 50 provided in the peripheral wall (for example, the side wall or the top wall) of the light projection unit U. However, since the temperature in the light projection unit U is higher at the upper part and lower at the lower part, disposing the LED 40 in the opening 50 provided in the lower wall of the light projection unit U avoids thermal damage to the LED 40. Most desirable. Furthermore, since the thermal damage of the LED 40 can be sufficiently avoided, the LED 40 can be disposed closer to the opening 50, and the LED 40 does not protrude greatly below the light projection unit U, and the vertical height of the light projection unit U is increased accordingly. Can be made compact.

  In the first to fourth embodiments, one LED 40 is used as the light source for the clearance lamp. However, the amount of light emitted as the clearance lamp is insufficient, the reflector 26, the projection lens 28, and the prism. When the emitted light of the LED 40 cannot be diffused and guided to the wide range of the lens 29, it is desirable to arrange a plurality of LEDs 40 in parallel.

  In the above-described embodiment, the ring-shaped prism lens 29 is disposed outside the projection lens 28, and the projection lens 28 and the entire prism lens 29 emit light when the clearance lamp is lit. For example, a light shielding portion having a predetermined shape may be formed on the back side of the prism lens 29 so that a part of the prism lens 29 in the circumferential direction that is not shielded by the light shielding portion emits light together with the projection lens 28.

1 is a longitudinal sectional view of a projection type automotive headlamp according to a first embodiment of the present invention. It is a figure which shows the structure of the diffuse reflection surface of the sub reflector which is the principal part of the headlamp, (a) is a longitudinal cross-sectional view of a sub reflector, (b) is a horizontal sectional view of a sub reflector (shown in FIG. 2 (a)). It is sectional drawing in alignment with line II-II). It is a longitudinal cross-sectional view of the light projection unit which is the principal part of the projection type vehicle headlamp which is the 2nd Example of this invention. It is a longitudinal cross-sectional view of the light projection unit which is the principal part of the projection type vehicle headlamp which is the 3rd Example of this invention. It is a longitudinal cross-sectional view of the light projection unit which is the principal part of the projection type vehicle headlamp which is the 4th Example of this invention. It is a longitudinal cross-sectional view of the conventional headlamp.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Lamp body 12 Front cover U Light projection unit 24 Bulb 26 which is a light source for headlamps Reflector 26a of substantially bowl shape Reflective surface F1 of reflector First focus F2 of reflector Second focus 28 of reflector Projection lens 29 Prism lens 30 Lens Holder 40 LED as light source for clearance lamp
L1 LED optical axis 42 Sub-reflector 42a Diffuse reflecting surface 43 Cylindrical step 44 Diffusing lens 44a Diffusing step 50 Aperture

Claims (5)

A light projection unit comprising: a substantially bowl-shaped reflector; a light source disposed at a substantially first focal point of the reflector; and a projection lens disposed in front of the second focal point of the reflector; In a projection type automotive headlamp in which a light source for a clearance lamp is provided,
An opening communicating with the outside of the light projection unit is provided in the peripheral wall of the light projection unit, and the reflector or the projection is formed in the opening by using the LED as the light source for the clearance lamp and the light emitted from the LED as diffused light. A projection-type automotive headlamp characterized in that a sub-reflector leading to a lens is arranged.   2. The projection type automotive headlamp according to claim 1, wherein the sub-reflector includes a vertical diffuse reflection surface in which a cylindrical step extending in a horizontal direction is continuous in a vertical direction.   3. The projection type automotive headlamp according to claim 1, wherein the sub-reflector includes a left-right diffusive reflecting surface constituted by a rotating paraboloid around the optical axis of the LED. A light projection unit comprising: a substantially bowl-shaped reflector; a light source disposed at a substantially first focal point of the reflector; and a projection lens disposed in front of the second focal point of the reflector; In a projection type automotive headlamp in which a light source for a clearance lamp is provided,
An opening communicating with the outside of the light projection unit is provided in a peripheral wall of the light projection unit, and the reflector or the projection is configured such that an LED which is a light source for the clearance lamp and an emitted light of the LED are diffused light. A projection type automotive headlamp characterized in that a diffusing lens leading to the lens is arranged.   The projection type automotive headlamp according to claim 1, wherein a prism lens is provided on at least a part of an outer periphery of the projection lens.

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