JP2005302328A - Projector-type vehicular lighting fixture - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To aim at more compactness and saving of weight of a lighting fixture as a whole, as well as higher luminance of a hot zone of a light distribution pattern. <P>SOLUTION: A small reflector 14 comprises an upper reflector fitted with a small concave mirror 7, and a lower reflector fitted with a shade 4 consisting of an edge part 4a and a reflecting face 4b made of a free curved surface formed by gently bending the edge part backward and upward aslant. Reflectors 12, 13 are jointed and a small convex lens 6 is fitted between the reflectors so that a center part 4A of the edge part 4a of the shade 4 is located in the vicinity where a second focus F2 of the small concave mirror 7 and a lens focus Fr of the small convex lens 6 coincide, further, a light emission part 11a of an LED 11 is made to located in the vicinity of a first focus F1 of the small concave mirror 7 offset upward than a light axis R of the small convex lens 6, and a plurality of small projector type lighting fixtures 10 constituted by being mounted in opposition to the small concave mirror 7 is incorporated in a housing 20. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a projector-type vehicular lamp that uses an LED (light emitting diode) as a light source, for example, applied as a headlamp.

  FIG. 12 shows this type of projector-type vehicle lamp 100 (see, for example, Patent Document 1). The vehicular lamp 100 includes a light source bulb 2 provided in the vicinity of the first focal point of the concave mirror 1 and a light beam emitted from the light source bulb 2 and reflected by the concave mirror 1 so as to adjust the light beam to a substantially parallel light beam and forward the lamp. It is generally configured with a convex lens 3 that emits light.

  Specifically, in the vehicular lamp 100, a shade 4 is provided between the light source bulb 2 and the convex lens 3, and a light distribution pattern having a cut line suitable as a passing beam can be obtained by the shade 4. .

  The light source bulb 2 is mounted with its filament positioned at the first focal point of the concave mirror 1 and its electrical connection portion fitted into the cylindrical opening 1a. A frame 5 is attached to the open end of the concave mirror 1, and a convex lens 3 is fixed to the frame 5 and a shade 4 is supported.

  Further, as shown in FIG. 13, the vehicular lamp 100 has a ventilation hole 1b immediately above the cylindrical opening 1a for mounting the light source bulb 2 of the concave mirror 1 and a ventilation hole 1b below. Each of the through holes 1c is provided.

The vehicle lamp 100 has a high temperature around the light source bulb 2 when it is turned on, but the heat is dissipated by heat convection generated between the through holes 1b and 1c, so that the temperature rise around the light source bulb 2 is suppressed. Is done.
Microfilm of Japanese Utility Model No. 4-76322 (Japanese Utility Model Application No. 6-41010)

  However, in the vehicular lamp 100, since the light emitted from the light source bulb 2 has high thermal energy, the convex lens 3 has to be formed of glass, and therefore has the problem of increasing the weight of the lamp. ing.

  In the vehicular lamp 100, for example, the concave mirror 1 is formed of an aluminum vapor deposition plate, resin, or iron plate, the convex lens 3 is formed of glass, and the shade 4 is formed of an aluminum vapor deposition plate or iron plate. The frame 5 is formed of an aluminum vapor deposition plate. Thus, since the material used for each part of the vehicle lamp 100 is different, it is necessary to make each part separately and to assemble these parts, but the dimension in the optical axis direction that requires accuracy is required. However, there is a problem that the variation in the light distribution performance is increased due to the variation in the assembly (Assy) and the variation in component dimensions.

  Further, the vehicular lamp 100 has a problem that it has a large number of parts, which complicates parts management, increases the number of assembling steps, complicates resource recycling, and leads to high costs.

  Furthermore, the vehicular lamp 100 has a problem that the reflection performance near the center of the concave mirror 1 provided with the through holes 1b and 1c is lowered, and the illuminance of the hot zone at the center of the light distribution pattern is lowered. Also have.

  Therefore, the present invention can reduce the lamp weight, facilitate resource recycling, and reduce the cost by reducing the number of parts, and can stably obtain excellent light distribution performance and reflect the concave mirror. An object of the present invention is to provide a projector-type vehicular lamp capable of maximizing performance and obtaining sufficient illuminance in a hot zone of a light distribution pattern.

In order to achieve the above object, the invention described in claim 1 is a light source provided in the vicinity of the first focal point of the concave mirror, and a light beam emitted from the light source and reflected by the concave mirror into a substantially parallel light beam. And a projector-type vehicular lamp including a convex lens that emits in front of the lamp,
The light source is composed of a plurality of LEDs,
The concave mirror is composed of a small concave mirror formed as a free-form surface based on a spheroidal curved surface or a rotational ellipse on each of a plurality of small reflectors,
The convex lens is composed of a small convex lens that covers the front opening of each of the plurality of small reflectors,
The small reflector and the small convex lens are formed of a thermoplastic resin material,
The small reflector includes an upper reflector integrally forming the small concave mirror, an edge portion formed along the meridional image surface, and a free curved surface formed by gently bending obliquely upward from the edge portion in the backward direction. And a lower reflector that is integrally formed with a reflecting surface and is coupled to the upper reflector from the lower side.
The upper reflector and the lower reflector are coupled to each other so that the center portion of the edge portion of the shade is positioned in the vicinity where the second focal point of the small concave mirror and the lens focal point of the small convex lens coincide with each other, and the upper reflector The small convex lens is assembled between the small reflector and the lower reflector, and the LED is positioned in the vicinity of the first focal point of the small concave mirror whose light emitting portion is offset above the optical axis of the small convex lens and the small reflector. By assembling it facing the concave mirror, a small projector type lamp is configured for each small reflector,
A plurality of small projector lamps composed of the plurality of small reflectors are incorporated in a housing.

  Therefore, in the first aspect of the invention, for each small projector type lamp, the light of the LED in the vicinity of the first focal point of the small concave mirror is emitted toward the small concave mirror and is reflected by the small concave mirror. The light is focused on the second focal point of the small concave mirror, reaches the small convex lens via the edge of the shade at the second focal point, or is reflected by the reflective surface of the shade after being reflected by the small concave mirror. By reaching the convex lens and passing through the small convex lens, it is dimmed to a parallel luminous flux and emitted to the front of the vehicular lamp, thereby producing a desired light distribution pattern.

  The light distribution pattern at this time is suitable as a passing beam having a cut line having a shape corresponding to the edge portion of the shade, and light is distributed within the light distribution pattern by a free curved surface constituting the reflection surface of the shade. Therefore, the illuminance of the hot zone is improved.

  Further, since the LED applied as a light source itself is small and lightweight, it can save the space required for mounting and reduce the weight of the lamp, and the thermal energy of the emitted light is also a light source with a filament. Therefore, an excessive temperature rise in the lamp chamber can be avoided, and the small convex lens and the small reflector can be formed of a thermoplastic resin material.

  In addition, since the small convex lens and the small reflector are made of a thermoplastic resin material, they can be formed with high dimensional accuracy and can be easily recycled as compared with the case where an iron plate or an aluminum vapor deposition plate is used.

  In addition, a small concave mirror is integrally formed on one upper reflector constituting the small reflector, and a shade is integrally formed on the other lower reflector, so that the number of parts can be reduced. In addition, the relative position of the optically important small convex lens, small concave mirror, LED, and shade can be accurately determined in combination with the above-described dimensional accuracy of the components. Can do.

The invention according to claim 2 is the projector-type vehicle lamp according to claim 1,
The reflection surface of the shade is configured to have a rear end portion composed of a horizontal end surface.

  For this reason, in the invention according to claim 2, after the light of the LED is reflected by the small concave mirror, the shielding by the rear end portion of the reflection surface of the shade can be reduced as much as possible to reach the edge portion of the shade.

The invention described in claim 3 is the projector-type vehicle lamp according to claim 1 or 2,
The upper reflector is integrally formed with the upper fixed portion of the small convex lens, and the lower reflector is integrally formed with the lower fixed portion of the small convex lens.

  For this reason, in the invention described in claim 3, since the upper and lower fixing portions of the small convex lens are provided on the upper and lower reflectors, respectively, only the small convex lens is fixed via the both fixing portions when the two reflectors are coupled. Thus, the relative positions of the small convex lens, the small concave mirror, and the shade can be determined with high accuracy.

  As described above in detail, according to the invention described in claim 1, since the LED applied as the light source is small in size, the space required for mounting can be saved and the small reflector can be downsized. And since the thermal energy of the emitted light is also smaller than that of the light source with filament, it is possible to avoid an excessive temperature rise in the lamp chamber and to make the small convex lens and the small reflector made of a thermoplastic resin material. It is possible to reduce the overall size of the lamp and reduce the weight, to facilitate resource recycling, and to reduce the cost by reducing the number of parts.

  In addition, according to the first aspect of the present invention, since it is not necessary to make a hole for ventilation in the small concave mirror, it is possible to maximize the reflection performance of the small concave mirror and improve the illuminance of the entire light distribution pattern. In addition, the free curved surface that forms the reflecting surface of the shade can efficiently reflect light in the direction of the hot zone in the light distribution pattern, so that the illuminance of the hot zone can also be improved, and thus the driving lane can be visually confirmed. Can be improved.

  According to the first aspect of the present invention, since the small concave mirror and the shade are formed integrally with the small reflector, the relative positions of the optically important small convex lens, small concave mirror, LED, and shade are determined. It is possible to determine with high accuracy, and thereby it is possible to form an optically excellent small projector lamp having a stable quality.

  According to the second aspect of the present invention, after the LED light is reflected by the small concave mirror, it can reach the edge portion of the shade with the least amount of shielding by the rear end portion of the reflecting surface of the shade. Therefore, it is possible to improve the illuminance of the hot zone by suppressing the decrease in the illuminance of the entire light distribution pattern as much as possible.

  According to the invention described in claim 3, since the upper and lower fixing portions of the small convex lens are provided on the upper and lower reflectors, respectively, the small convex lens is fixed via the both fixing portions when the two reflectors are coupled. Alone, the relative positions of the small convex lens, the small concave mirror, and the shade can be determined with high accuracy, and thus an optically excellent small projector lamp can be formed with a more stable quality. .

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that components having the same functions as those disclosed in FIGS. 12 and 13 are described with the same reference numerals.

  1 to 3 show a projector type vehicle lamp A according to the present invention. The vehicular lamp A is generally configured by incorporating a plurality of small projector lamps 10a, 10b, 10c, 10d, 10e, 10f, 10g, 10h, 10i, 10j into a single housing 20 using the LED 11 as a light source. Has been. Note that the small projector type lamp is denoted by reference numeral 10 in the following representative examples.

  The housing 20 includes a casing 22 having an opening at the front and a through glass 21 that covers the opening of the casing 22. The plurality of small projector lamps 10 a to 10 j are incorporated in the housing 20 by being fixed to the casing 22 via the fixture 23. At this time, the fixture 23 is supported by the casing 22 so that the optical axes of the plurality of small projector lamps 10a to 10j can be adjusted vertically and horizontally by two adjusting screws and a pivot structure (not shown). . In FIGS. 1 and 2, reference numerals 26 and 27 denote a clearance lamp and a front turn lamp, respectively.

  In addition, the small projector lamps 10a to 10j are designed so that, for example, the following light distribution pattern is obtained depending on the mounting position.

  6A and 6B show the light distribution pattern, where FIG. 6A is a horizontal diffusion type (first light distribution pattern), FIG. 6B is a condensing flat type (second light distribution pattern), and FIG. 6C is a cut line of a low beam. The horizontal diffusion type (third light distribution pattern) having (3) and (d) show the condensing flat type (fourth light distribution pattern) having the cut line of the passing beam, respectively.

  Of the small projector lamps 10a to 10j, the small projector lamps 10a, 10c, 10d, and 10g are designed so as to obtain a third light distribution pattern (see FIG. 6C). 10e and 10f are designed to obtain a fourth light distribution pattern (see FIG. 6D), and the small projector-type lamps 10h, 10i, and 10j use the first light distribution pattern (see FIG. 6A). ). In general, the vehicular lamp A can produce the light distribution pattern LP suitable for the low beam shown in FIG.

  Specifically, as shown in FIGS. 7, 10, and 11, the light source is composed of a plurality of LEDs provided in each of the plurality of small reflectors 14, and the concave mirror is composed of the plurality of small reflectors 14. Are formed by a small concave mirror 7 formed as a spheroid curved surface or a free curved surface based on a spheroid, and the convex lens is constructed by a small convex lens 6 covering the front opening of each of a plurality of small reflectors 14. Has been.

  At this time, the small reflector 14 and the small convex lens 6 are formed of a thermoplastic resin material, and the small reflector 14 includes an upper reflector 12 that integrally forms the small concave mirror 7 and an edge formed along the meridional image plane. A lower reflector which is integrally formed with a shade 4 comprising a portion 4a and a reflecting surface 4b made of a free curved surface which is formed by being gently curved backward and obliquely upward from the edge portion 4a, and coupled to the upper reflector 12 from below. 13.

  Furthermore, the upper reflector 12 is positioned so that the central portion 4A (see FIG. 11) of the edge portion 4a of the shade 4 is located in the vicinity where the second focal point F2 of the small concave mirror 7 and the lens focal point Fr of the small convex lens 6 match. And the lower reflector 13, the small convex lens 6 is assembled between the upper reflector 12 and the lower reflector 13, and the LED 11 has its light emitting portion 11 a offset upward from the optical axis R of the small convex lens 6. The small projector-type lamp 10 is configured for each small reflector 14 by being positioned in the vicinity of the first focal point F1 (see FIGS. 7 and 10) 7 and being opposed to the small concave mirror 7.

  The vehicular lamp A is configured as a whole by incorporating a plurality of small projector lamps 10 a to 10 j constituted by a plurality of small reflectors 14 into a housing 20.

  Specifically, as shown in FIGS. 4 and 5, the LED 11 is fixed to the mounting plate 9 and is sub-assembled, and the mounting plate 9 is screwed onto the flange portion 12 a of the substantially half portion on the rear side of the upper reflector 12. By coupling at 24, the light emitting portion 11a is attached to face the small concave mirror 7. 4 and 5, reference numeral 25 denotes four lead wires, two of which are the lead wires of the LED 11, and the other two are for the cooling element.

  FIG. 8 shows an emission pattern L0 of light emitted from the light emitting portion 11a of the LED 11, and a broken line in FIG. 7B shows an incident state of the light of the emission pattern L0 on the small concave mirror 7. .

  The upper and lower reflectors 12 and 13 constituting the small reflector 14 are made of, for example, polycarbonate resin, and the small convex lens 6 is made of, for example, acrylic resin having excellent optical characteristics.

  The upper reflector 12 is formed with a small concave mirror 7 on the rear side thereof, mounting holes (not shown) for the LEDs 11 in the flange portions 12 a on both sides of the small concave mirror 7, and continuous with the front end portion of the small concave mirror 7. Thus, an upper casing portion 15 having a diameter larger than that of the small concave mirror 7 is formed, and the entire structure is formed by vapor-depositing (or painting) a reflecting member on the inner surface. By fixing the sub-assembly member of the LED 11 to the upper reflector 12 through the mounting hole of the flange portion 12a, the light emitting portion 11a of the LED 11 is positioned in the vicinity of the first focal point F1 of the small concave mirror 7.

  The lower reflector 13 includes the shade 4 and the lower casing portion 16. The shade 4 includes an upright wall 4d that is erected at the rear end portion of the lower casing portion 16, and a reflective surface 4b that is formed of a free curved surface that is formed by gently bending obliquely upward in the rearward direction from the upper end of the upright wall 4d. The edge portion 4a is formed along the meridional image plane at the boundary between the standing wall 4d and the reflecting surface 4b. Further, the lower reflector 13 is configured as a whole by vapor-depositing (or painting) a reflecting member on the inner surface including the shade 4. The edge portion 4a is formed in a stepped shape similar to the cut line CL in FIG. 9 or formed in a straight line according to the first to fourth light distribution patterns in FIG.

  And the small reflector 14 is comprised by abutting the flange parts 12a and 13a which formed both reflectors 12 and 13 in each outer peripheral part, and couple | bonding it by a coupling means. The coupling means at this time is provided integrally with the screw 8, the screw hole 17 formed in the flange portion 12 a of the upper reflector 12, the coupling boss portion 18 provided integrally with the lower reflector 13, and the lower reflector 13. Both reflectors are formed by screwing the screw 8 through the screw hole 17 (see FIG. 7A) and screwing the screw 8 into the coupling boss portion 18 (see FIG. 4). 12 and 13 can be combined.

  In this connection, the small convex lens 6 is also assembled between the upper casing portion 15 and the lower casing portion 16. These attachments are performed so that the central portion 4A of the edge portion 4a of the shade 4 is positioned in the vicinity where the second focal point F2 of the small concave mirror 7 and the lens focal point Fr of the small convex lens 6 coincide.

  As a result, the small reflector 14 has a substantially half portion on the front side having a closed cross section by the casing parts 15 and 16, and a substantially half portion on the rear side has a substantially semicircular cross section only by the small concave mirror 7 of the upper reflector 12. It is configured.

  Further, the LED 11 is sub-assembled and attached to both side flange portions 12a of the substantially semicircular cross-section portion of the upper reflector 12 so that the light emitting portion 11a is positioned more than the optical axis R of the small convex lens 6. The small concave mirror 7 offset upward is positioned in the vicinity of the first focal point F1 (see FIGS. 7 and 10) and is mounted to face the small concave mirror 7. In FIG. 7 and FIG. 10, the symbol d indicates the offset amount.

  In this way, the small projector lamp 10 is configured for each small reflector 14, and as shown in FIG. 7, the front lamp chamber 14 a is formed by the small convex lens 6, the upper casing portion 15, and the lower casing portion 16. The rear lamp chamber 14 b is formed by the small concave mirror 7 and the sub-assembly member of the LED 11 fixed to the upper reflector 12.

  The vehicular lamp A of the present embodiment is configured such that each of the plurality of small projector lamps 10a to 10j is a small projector lamp 10, and as shown in FIG. 3 and FIG. The small convex lens 6 is made to face the transparent glass 21 using the fixture 23 consisting of the second fixture 23a, the second fixture 23b, and the third fixture 23c, and the upper and lower reflectors 12 and 13 are placed on the upper and lower sides, respectively. In this way, it is attached to the casing 22.

  Next, the effect of the vehicle lamp A comprised in this way is demonstrated.

  For each small projector lamp 10, the light from the LED 11 in the vicinity of the first focal point F1 of the small concave mirror 7 is emitted toward the small concave mirror 7 as shown in FIGS. And is condensed on the second focal point F2 portion (which is also the lens focal point Fr portion) of the small concave mirror 7 and passes through the edge portion 4a of the shade 4 at the second focal point F2 portion to the small convex lens 6. Or is reflected by the reflecting surface 4b of the shade 4 to reach the small convex lens 6 and passes through the small convex lens 6 to be dimmed into a parallel light flux and The light can be emitted forward, and a desired light distribution pattern can be generally obtained by the plurality of small projector lamps 10a to 10j.

  The light distribution pattern at this time is, for example, the light distribution pattern LP shown in FIG. 9, which is suitable as a passing beam having a cut line CL having a shape corresponding to the edge portion 4 a and is reflected by the shade 4. Light can be efficiently reflected in the direction of the hot zone LP1 in the light distribution pattern LP by the free-form surface constituting the surface 4b, so that the illuminance of the hot zone LP1 can be improved.

  Further, since the LED 11 applied as a light source itself is small and light, the space required for mounting can be saved, the weight of the lamp can be reduced, and the thermal energy of the emitted light is also reduced by the light source with filament. Since it is smaller than (refer to the light source bulb 2 in FIG. 12), an excessive temperature rise in the lamp chamber can be avoided, and the small convex lens 6 and the small reflector 14 can be formed of a thermoplastic resin material.

  Further, since the small convex lens 6 and the small reflector 14 are made of a thermoplastic resin material, the small convex lens 6 and the small reflector 14 can be formed with higher dimensional accuracy and can be easily recycled than those using an iron plate or an aluminum vapor deposition plate. .

  In addition, since the small concave mirror 7 is integrally formed on one upper reflector 12 constituting the small reflector 14, and the shade 4 is integrally formed on the other lower reflector 13, the number of parts is reduced. In addition to being able to achieve reduction, the above-described components are formed with good dimensional accuracy, and thus the relative relationship between the small convex lens 6, the small concave mirror 7, the LED 11, and the shade 4 that are optically important in the positional relationship. A precise position can be determined with high accuracy.

  Further, preferably, the reflection surface 4b of the shade 4 is configured to have a rear end portion 4c formed of a horizontal end surface, as shown in FIG. 7, FIG. 10, and FIG.

  In this configuration, after the light of the LED 11 is reflected by the small concave mirror 7, it is possible to reach the edge portion 4a of the shade 4 by reducing the shielding by the rear end portion 4c of the shade 4 as much as possible. Therefore, it is possible to improve the illuminance of the hot zone LP1 by suppressing the decrease in the illuminance of the entire light distribution pattern LP as much as possible.

  More preferably, as shown in FIG. 7 (b), the upper reflector 12 is integrally formed with an upper fixing portion 15a of the small convex lens 6, and the lower reflector 13 is fixed to the lower side of the small convex lens 6. The part 16a is integrally formed.

  Specifically, the upper fixing portion 15a is formed in a groove shape along the inner periphery of the front end of the upper casing portion 15, and the lower fixing portion is fixed to the front end portion of the lower casing portion 16 along the inner periphery thereof. The part 16a is formed in a groove shape.

  The small convex lens 6 has a thin-walled outer peripheral flange portion 6a, and when the reflectors 12 and 13 are coupled, the outer peripheral flange portion 6a is fitted to the both fixed portions 15a and 16a. Attached.

  In this configuration, since the upper and lower fixing portions 15a and 16a of the small convex lens 6 are provided in the upper and lower reflectors 12 and 13, respectively, the outer peripheral flange portion 6a of the small convex lens 6 is connected to both the reflectors 12 and 13. The relative positions of the small convex lens 6, the small concave mirror 7 and the shade 4 can be determined with high precision simply by fitting the fixing portions 15a and 16a, and thus the small projector type lamp 10 which is optically excellent can be obtained. It can be formed with a stable quality.

It is a front view of the whole projector type vehicle lamp as an embodiment of the present invention. It is sectional drawing which follows the II-II line | wire of the projector type vehicle lamp of FIG. It is sectional drawing which follows the III-III line | wire of the projector type vehicle lamp of FIG. It is a disassembled side view of the small projector type lamp applied to the projector type vehicle lamp of FIG. FIG. 5 is a perspective view of an LED sub-assembly applied to a light source of the small projector type lamp of FIG. 4. 1 is a light distribution pattern of each of a plurality of small projector type lamps constituting the projector type vehicle lamp of FIG. 1, (a) is a horizontal diffusion type, (b) is a condensing flat type, and (c) is a cut line. The horizontal beam diffusion type for the passing beam has (d) shows the converging flat type for the passing beam having a cut line. FIG. 2 is a small projector type lamp as an embodiment constituting the projector type vehicle lamp of the present invention, wherein (a) is a plan view thereof, (b) is a sectional view taken along line VIIb-VIIb of (a), and (c). FIG. 3 is a front view seen from the front. It is a graph which shows the emission pattern of the emitted light of LED applied to the small projector type lamp of FIG. It is a graph which shows the light distribution pattern of the projector type vehicle lamp comprised with the small projector type lamp of FIG. It is a side surface schematic diagram explaining the optical path of the small projector type | mold lamp of FIG. It is a plane schematic diagram explaining the optical path of the small projector type lamp of FIG. It is a center secondary sectional view of the conventional projector type vehicle lamp. It is a front view of the concave mirror applied to the projector type vehicle lamp of FIG.

Explanation of symbols

4 Shade 4a Edge (shade)
4b Reflective surface (shade)
4c Rear end part 4A Center part (of edge part)
6 Small convex lens 7 Small concave mirror 10 Small projector type lamp 10a to 10j Small projector type lamp 11 LED
11a Light emitting part (LED)
12 Upper reflector 13 Lower reflector 14 Small reflector 15a Upper fixed portion 16a Lower fixed portion 20 Housing A Projector type vehicle lamp F1 First focus (of small concave mirror)
F2 second focus (of a small concave mirror)
Fr lens focus (for small convex lenses)
R Optical axis (for small convex lens)

Claims (3)

A projector-type vehicle comprising: a light source provided in the vicinity of a first focal point of a concave mirror; and a convex lens for dimming a light beam emitted from the light source and reflected by the concave mirror into a substantially parallel light beam and emitting the light in front of the lamp A lamp,
The light source is composed of a plurality of LEDs,
The concave mirror is composed of a small concave mirror formed as a free-form surface based on a spheroidal curved surface or a rotational ellipse on each of a plurality of small reflectors,
The convex lens is composed of a small convex lens that covers the front opening of each of the plurality of small reflectors,
The small reflector and the small convex lens are formed of a thermoplastic resin material,
The small reflector includes an upper reflector integrally forming the small concave mirror, an edge portion formed along the meridional image surface, and a free curved surface formed by gently bending obliquely upward from the edge portion in the backward direction. And a lower reflector that is integrally formed with a reflecting surface and is coupled to the upper reflector from the lower side.
The upper reflector and the lower reflector are coupled to each other so that the center portion of the edge portion of the shade is positioned in the vicinity where the second focal point of the small concave mirror and the lens focal point of the small convex lens coincide with each other, and the upper reflector The small convex lens is assembled between the small reflector and the lower reflector, and the LED is positioned in the vicinity of the first focal point of the small concave mirror whose light emitting portion is offset above the optical axis of the small convex lens and the small reflector. A small projector-type lamp is configured for each small reflector by being assembled to face the concave mirror,
A projector-type vehicular lamp characterized in that a plurality of small projector-type lamps composed of the plurality of small reflectors are incorporated in a housing. The projector-type vehicular lamp according to claim 1,
The projector-type vehicle lamp according to claim 1, wherein the reflection surface of the shade has a rear end portion formed of a horizontal end surface. The projector-type vehicle lamp according to claim 1 or 2,
The upper reflector is integrally formed with the upper fixed portion of the small convex lens, and the lower reflector is integrally formed with the lower fixed portion of the small convex lens. Vehicle lamp.

Images