Information
-
Patent Grant
-
6390656
-
Patent Number
6,390,656
-
Date Filed
Friday, July 28, 200024 years ago
-
Date Issued
Tuesday, May 21, 200223 years ago
-
Inventors
-
Original Assignees
-
Examiners
- O'Shea; Sandra
- Choi; Jacob Y.
Agents
- Birch, Stewart, Kolasch & Birch, LLP
-
CPC
-
US Classifications
Field of Search
US
- 362 475
- 362 518
- 362 543
- 362 544
- 362 247
- 362 346
- 362 473
- 362 474
-
International Classifications
-
Abstract
A headlight includes a low-beam lamp arranged on a longitudinally extending center line of a vehicle body and left and right high-beam lamps arranged on the opposite sides of the low-beam lamp as viewed in plan. This arrangement permits the total reflection area of the reflecting portions of the left and right high-beam lamps can be increased. The lens of the low-beam lamp and the left and right high-beam lamps is integrally formed and largely curved toward the front side of the vehicle body, thereby suppressing an increase in the air resistance by the headlight. Accordingly, the brightness of the headlight can be increased without changing the rated powers of the bulbs of the low-beam lamp and the high-beam lamps. Further, by symmetrically arranging the left and right high-beam lamps with respect to the low-beam lamp, the illumination condition on the road surface by the high beam in the case of cornering to the left can be made similar to that in the case of cornering to the right.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a headlight for a motorcycle suitably designed for increasing the brightness.
2. Description of Background Art
A conventional headlight for a motorcycle is known, for example, from Japanese Patent Laid-open No. 4-92731 entitled “Headlight Unit for Motorcycle.”
FIG. 2
of this publication shows a headlight unit
10
including a lamp
13
for high beam and a projector lamp
14
for low beam laterally arranged close to each other on the opposite sides with respect to the longitudinally extending center line of a vehicle body. The lamp
13
includes a parabolic reflecting mirror
15
a
and a halogen bulb
16
, and the projector lamp
14
includes an elliptic reflecting mirror
19
a
and a halogen bulb
20
.
It is considered that the brightness of the headlight unit
10
can be improved, for example, by increasing the area of the parabolic reflecting mirror
15
a
of the lamp
13
or the elliptic reflecting mirror
19
a
of the projector lamp
14
.
However, an increase in the reflection area of the parabolic reflecting mirror
15
a
or the elliptic reflecting mirror
19
a
results in an increase in the area of the front surface of the headlight unit
10
, causing an increase in air resistance during running.
As another method for improving the brightness of the headlight unit
10
, it is considered to increase the rated power of the halogen bulb
16
or
20
. However, an increase in the rated power causes an increase in power consumption, so that it is necessary to increase the capacity of a power supply system for supplying power to the headlight unit
10
, causing a cost increase.
Further, since the lamp
13
for the high beam and the projector lamp
14
for the low beam are arranged laterally on the opposite sides with respect to the longitudinally extending center line of the vehicle body, there occurs a problem in the cornering of the motorcycle. That is, when the vehicle body is inclined in the cornering of the motorcycle, the height of the lamp
13
from a road surface in the case of cornering to the left is different from that in the case of cornering to the right, causing a difference in illumination condition on the road surface by the lamp
13
between these cases. This problem occurs also on the projector lamp
14
.
SUMMARY AND OBJECTS OF THE INVENTION
It is accordingly an object of the present invention to provide a headlight for a motorcycle which can increase the brightness without changing the rated power as maintaining aerodynamic characteristics and can illuminate the road surface under substantially the same condition both in the case of cornering to the left and in the case of cornering to the right.
In accordance with the present invention, there is provided a headlight arranged at a front portion of a vehicle body of a motorcycle, comprising a low-beam lamp arranged on a longitudinally extending center line of said vehicle body and left and right high-beam lamps arranged on the opposite sides of said low-beam lamp as viewed in plan.
The low-beam lamp arranged on the longitudinally extending center line of the vehicle body is turned on when meeting another vehicle, whereas the left and right high-beam lamps are turned on no traffic is approaching.
Since the left and right high-beam lamps are arranged on the opposite sides of the low-beam lamp, the total reflection area of reflecting mirrors of the left and right high-beam lamps can be increased. Preferably, the lens of the low-beam lamp and the left and right high-beam lamps is integrally formed and largely curved toward the front side of the vehicle body, so that the shape of the lens can be made nearly streamlined. Accordingly, although the area of the front surface of the headlight is large, an increase in the air resistance can be suppressed.
As a result, the brightness of the headlight can be increased without changing the rated powers of the bulbs of the low-beam lamp and the high-beam lamps.
Additionally, by symmetrically arranging the left and right high-beam lamps with respect to the low-beam lamp so as to be equally spaced therefrom, the illumination condition on the road surface by the high beam in the case of cornering to the left with the vehicle body inclined to the left can be made similar to that in the case of cornering to the right with the vehicle body inclined to the right.
Further scope of applicability of the present invention will become apparent from the detailed description given hereinafter. However, it should be understood that the detailed description and specific examples, while indicating preferred embodiments of the invention, are given by way of illustration only, since various changes and modifications within the spirit and scope of the invention will become apparent to those skilled in the art from this detailed description.
BRIEF DESCRIPTION OF THE DRAWINGS
The present invention will become more fully understood from the detailed description given hereinbelow and the accompanying drawings which are given by way of illustration only, and thus are not limitative of the present invention, and wherein:
FIG. 1
is a front elevation of a headlight for a motorcycle according to the present invention;
FIG. 2
is a cross section taken along the line
2
—
2
in
FIG. 1
;
FIG. 3
is a cross section taken along the line
3
—
3
in
FIG. 1
;
FIG. 4
is a cross section taken along the line
4
—
4
in
FIG. 1
;
FIG. 5
is a side view of a front portion of a motorcycle having the headlight according to the present invention;
FIG. 6
is a front elevation of the motorcycle shown in
FIG. 5
;
FIG. 7
is a horizontal sectional view for illustrating a first operation of the headlight according to the present invention; and
FIGS.
8
(
a
) to
8
(
c
) are plan views for illustrating a second operation of the headlight according to the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
A preferred embodiment of the present invention will now be described with reference to the attached drawings. Each drawing is to be viewed in the same orientation as that of reference numerals shown therein. Further, the terms of “left” and “right” used in this specification are meant with respect to a rider on a motorcycle.
FIG. 1
is a front elevation of a headlight
10
for a motorcycle according to the present invention. The headlight
10
includes a housing
11
, a reflector
12
mounted in the housing
11
, a low-beam bulb
13
mounted on the reflector
12
, left and right high-beam bulbs
14
and
15
mounted on the reflector
12
, and a lens
16
mounted on a front portion of the housing
11
.
The housing
11
has two upper mounting portions
21
and two side mounting portions
22
adapted to be mounted on a cowling to be hereinafter described.
The reflector
12
is an integrally molded member composed of a low-beam reflecting portion
23
as a parabolic mirror for reflecting light emitted from the low-beam bulb
13
and left and right high-beam reflecting portions
24
and
25
as parabolic mirrors for reflecting light emitted from the high-beam bulbs
14
and
15
, respectively.
FIG. 2
is a cross section taken along the line
2
—
2
in FIG.
1
.
The housing
11
, the low-beam bulb
13
, the lens
16
, and the low-beam reflecting portion
23
constitute a low-beam lamp
26
.
The housing
11
, the left high-beam bulb
14
, the lens
16
, and the left high-beam reflecting portion
24
constitute a left high-beam lamp
27
.
The housing
11
, the right high-beam bulb
15
, the lens
16
, and the right high-beam reflecting portion
25
constitute a right high-beam lamp
28
.
A plurality of rubber caps
31
are provided for sealing the housing
11
so as to prevent the entry of rainwater or the like from mounting portions of the bulbs
13
,
14
, and
15
. A longitudinally extending center line CL
1
of the headlight
10
is provided that provides a reference axis of the low-beam bulb
13
. The headlight
10
is mounted in such a manner that the center line CL
1
coincides with a longitudinally extending center line of a vehicle body to be hereinafter described.
Thus, the headlight
10
arranged at a front portion of a vehicle body of a motorcycle includes the low-beam lamp
26
arranged on the longitudinally extending center line of the vehicle body and the left and right high-beam lamps
27
and
28
arranged on the opposite sides of the low-beam lamp
26
as viewed in plan.
The lens
16
is formed with stepped portions
32
each having a side surface
32
a
. The side surfaces
32
a
of the stepped portions
32
are fitted with an opening portion of a cowling
38
forming a part of the vehicle body. Accordingly, even in the case that the light emitted from the bulbs
13
,
14
, and
15
is passed through a portion of the lens
16
outside of the side surfaces
32
a
, the light is blocked by the cowling
38
and does not project from the headlight
10
.
The lens
16
has a curved front surface extending between the side surfaces
32
a
. This curved front surface is formed as an effective lens surface
33
for transmitting the light. Letting W denote the effective lens width as the width of the effective lens surface
33
and C denote the curvature height as the distance from the front end of each side surface
32
a
to the top of the effective lens surface
33
, C/W≧0.2.
By setting the relation between the effective lens width W and the curvature height C of the lens
16
so as to satisfy C/W≧0.2, the shape of the lens
16
can be made nearly streamlined in combination with the cowling
38
.
FIG. 3
is a cross section taken along the line
3
—
3
in FIG.
1
.
The low-beam lamp
26
is configured so that the light emitted from the low-beam bulb
13
is reflected by the low-beam reflecting portion
23
to obtain parallel rays of light, which are in turn refracted by the lens
16
to obtain a given light distribution of low beam.
Letting L
1
, L
2
, and L
3
denote the typical rays of light emitted from the low-beam bulb
13
, the ray L
1
is reflected by an upper half portion
23
a
as the upper half of the low-beam reflecting portion
23
, and then reaches the lens
16
.
The rays L
2
and L
3
are reflected by a lower half portion
23
b
as the lower half of the low-beam reflecting portion
23
, and then reaches the lens
16
.
Accordingly, as compared with the case of using light reflected by only the half of a reflecting mirror, the low-beam lamp
26
has an advantage such that the light reflected by almost all of the low-beam reflecting portion
23
can be used, so that the brightness can be greatly increased without the need for increasing the rated power of the low-beam bulb
13
.
FIG. 4
is a cross section taken along the line
4
—
4
in FIG.
1
.
The left high-beam lamp
27
is configured so that the light emitted from the high-beam bulb
14
is reflected by the left high-beam reflecting portion
24
to obtain parallel rays of light, which are in turn refracted by the lens
16
.
The light emitted from the high-beam bulb
14
is reflected by both the upper half and the lower half of the high-beam reflecting portion
24
to reach the lens
16
.
The right high-beam lamp
28
shown in
FIG. 2
is configured so that the light emitted from the high-beam bulb
15
is reflected by the right high-beam reflecting portion
25
to obtain parallel rays of light, which are in turn refracted by the lens
16
.
The light emitted from the high-beam bulb
15
is reflected by both the upper half and the lower half of the high-beam reflecting portion
25
to reach the lens
16
.
The light having reached the lens
16
in the left and right high-beam lamps
27
and
28
is refracted by the lens
16
to obtain a given light distribution of the high beam.
While the given light distributions of low beam and high beam are obtained by the lens
16
in this preferred embodiment, they may be obtained by forming the reflective surface of the reflector
12
into a multireflective surface.
As compared with such a headlight type that only one bulb is used to provide a low beam and a high beam, the headlight
10
using the low-beam lamp
26
dedicated to a low beam and the high-beam lamps
27
and
28
dedicated to a high beam has advantages such that the tuning for light distribution can be easily performed, that is, the cutting of the bulbs
13
,
14
, and
15
and the lens
16
, the shaping of the reflector
12
, etc. can be easily set, thereby reducing a manufacturing cost of the headlight
10
.
FIG. 5
is a side view of a front portion of a motorcycle
40
having the headlight
10
according to the present invention. The motorcycle
40
includes a body frame
41
, a head pipe
42
provided at a front portion of the body frame
41
, a front fork
43
and a front wheel
44
steerably mounted on the head pipe
42
, a handle
45
mounted on an upper portion of the front fork
43
, a cowling
38
mounted on the body frame
41
, and the headlight
10
mounted on the cowling
38
. The motorcycle
40
further includes a windscreen
47
, a main switch
51
, a fuel tank
52
, and a front fender
53
.
Thus, the headlight
10
is located at a front portion of the vehicle body.
FIG. 6
is a front elevation of the motorcycle
40
having the headlight
10
according to the present invention. As shown in
FIG. 6
, the headlight
10
is mounted on the cowling
38
.
The left and right high-beam lamps
27
and
28
are provided on the left and right sides of the low-beam lamp
26
. Accordingly, the area of the effective reflecting surface of the reflector
12
and the area of the effective lens surface of the lens
16
can be increased, thereby increasing the brightness of the high beam of the headlight
10
over the prior art.
Operations of the headlight
10
mentioned above will now be described.
FIG. 7
is a horizontal sectional view for illustrating a first operation of the headlight
10
included in the motorcycle
40
. While the motorcycle
40
is being operated, air strikes against the lens
16
and flows along the outer surface of the lens
16
and the outer surface of the cowling
38
as shown by arrows in FIG.
7
.
As previously mentioned with reference to
FIG. 2
, the relationship between the effective lens width W and the curvature height C is set so as to satisfy C/W≧0.2. In other words, the degree of curvature of the lens
16
relative to the width of the lens
16
is set larger than that of the conventional lens. Further, the outer surface of the lens
16
and the outer surface of the cowling
38
are smoothly joined together so as to form a flush surface. With this configuration, the shape of the lens
16
of the headlight
10
in combination with the cowling
38
can be made more streamlined as viewed in plan, so that the air flow along the outer surfaces of the lens
16
and the cowling
38
can be made smoother to thereby reduce the air resistance by the headlight
10
and the cowling
38
.
If C/W<0.2 as in the prior art, the degree of curvature of the lens relative to the width of the lens is small, so that the outer surface of the lens becomes nearly flat, causing an increase in the air resistance.
As mentioned above with reference to
FIG. 2
, the left and right high-beam lamps
27
and
28
are arranged on the left and right sides of the low-beam lamp
26
. Accordingly, the total reflection area of the left and right high-beam reflecting portions
24
and
25
of the left and right high-beam lamps
27
and
28
can be increased as compared with the case that only one high-beam lamp is provided. The lens
16
of the low-beam lamp
26
and the left and right high-beam lamps
27
and
28
is integrally formed and largely curved toward the front side of the vehicle body. Accordingly, although the area of the front surface of the headlight
10
is large, an increase in the air resistance can be suppressed.
As a result, the brightness of the headlight
10
can be increased without changing the rated powers of the bulbs
13
,
14
, and
15
of the low-beam lamp
26
and the left and right high-beam lamps
27
and
28
.
FIGS.
8
(
a
) to
8
(
c
) are plan views for illustrating a second operation of the headlight
10
included in the motorcycle
40
, in which various light distributions of the high beam on a road surface
57
during the operation of the motorcycle
40
are shown.
As shown in FIG.
8
(
a
), the motorcycle
40
is being operated in a straight direction, and the road surface
57
is illuminated by a left light distribution
55
by the left high-beam lamp and a right light distribution
56
by the right high-beam lamp, thus obtaining a given light distribution of high beam on the road surface
57
.
Reference character CL
2
denotes a longitudinally extending center line of the motorcycle
40
.
As shown in FIG.
8
(
b
), the motorcycle
40
is cornering to the left. In this condition, the motorcycle
40
is inclined to the left, so that the left high-beam lamp becomes near to the road surface
57
and the right high-beam lamp becomes far from the road surface
57
.
Accordingly, the illumination area of the left light distribution
55
by the left high-beam lamp on a left portion of the road surface
57
with respect to the center line CL
2
is narrower than that during the straight running shown in FIG.
8
(
a
).
Conversely, the illumination area of the right light distribution
56
by the right high-beam lamp on a right portion of the road surface
57
with respect to the center line CL
2
is wider than that during the straight running shown in FIG.
8
(
a
).
As shown in FIG.
8
(
c
), the motorcycle
40
is cornering to the right. In this condition, the motorcycle
40
is inclined to the right, so that the left high-beam lamp becomes far from the road surface
57
and the right high-beam lamp becomes near to the road surface
57
.
Accordingly, the circumstance in this case becomes opposite to that in the case of cornering to the left shown in FIG.
8
(
b
). That is, the illumination area of the left light distribution
55
by the left high-beam lamp on a left portion of the road surface
57
with respect to the center line CL
2
is wider than that during the straight running shown in FIG.
8
(
a
). Conversely, the illumination area of the right light distribution
56
by the right high-beam lamp on a right portion of the road surface
57
with respect to the center line CL
2
is narrower than that during straight operating conditions as shown in FIG.
8
(
a
).
The high-beam lamps
27
and
28
(see
FIG. 2
) are symmetrically arranged on the left and right sides of the low-beam lamp
26
(see FIG.
2
). Accordingly, in the case of cornering with the vehicle body being inclined as shown in FIG.
8
(
b
) or
8
(
c
), the illumination condition on the road surface
57
in the case of cornering to the left can be made similar to that in the case of cornering to the right, and the rider can therefore visibly recognize the road surface
57
with the same sense both in the case of cornering to the left and in the case of cornering to the right.
The following effects can be exhibited by the above configuration of the present invention.
The headlight according to the present invention comprises a low-beam lamp arranged on a longitudinally extending center line of a vehicle body and left and right high-beam lamps arranged on the opposite sides of the low-beam lamp as viewed in plan. With this configuration, the total reflection area of the reflecting portions of the left and right high-beam lamps can be increased. Preferably, the lens of the low-beam lamp and the left and right high-beam lamps is integrally formed and largely curved toward the front side of the vehicle body, so that the shape of the lens can be made nearly streamlined. Accordingly, although the area of the front surface of the headlight is large, an increase in the air resistance can be suppressed.
As a result, the brightness of the headlight can be increased without changing the rated powers of the bulbs of the low-beam lamp and the high-beam lamps.
Additionally, by symmetrically arranging the left and right high-beam lamps with respect to the low-beam lamp so as to be equally spaced therefrom, the illumination condition on the road surface by the high beam in the case of cornering to the left with the vehicle body inclined to the left can be made similar to that in the case of cornering to the right with the vehicle body inclined to the right.
The invention being thus described, it will be obvious that the same may be varied in many ways. Such variations are not to be regarded as a departure from the spirit and scope of the invention, and all such modifications as would be obvious to one skilled in the art are intended to be included within the scope of the following claims.
Claims
- 1. A headlight arranged at a front portion of a vehicle body of a motorcycle, comprising:a low-beam lamp arranged on a longitudinally extending center line of said vehicle body; a left high-beam lamp arranged on a first side of said low-beam lamp as viewed in plan; a right high-beam lamp arranged on a second side of said low-beam lamp as viewed in plan; a lens positioned to cover said low-beam lamp, said left high-beam lamp, and said right high-beam lamp; wherein said left and right high-beam lamps are symmetrically arranged with respect to the low-beam lamp so as to be substantially equally spaced therefrom, such that the illumination condition on the road surface by a high-beam in the case of cornering to the left with the vehicle body inclined to the left can be made similar to that in the case of cornering to the right with the vehicle body inclined to the right.
- 2. The headlight arranged at a front portion of a vehicle body of a motorcycle according to claim 1, and further including a left high-beam lamp reflector positioned adjacent to a central low-beam lamp reflector, said central low-beam lamp reflector being positioned adjacent to a right high-beam lamp reflector for forming a reflective surface for projecting light onto a road surface.
- 3. The headlight arranged at a front portion of a vehicle body of a motorcycle according to claim 2, wherein the central low-beam lamp reflector has a predetermined radius of curvature that is larger relative to a radius of curvature of the left high-beam lamp reflector and the right high-beam lamp reflector.
- 4. The headlight arranged at a front portion of a vehicle body of a motorcycle according to claim 2, wherein said lens is curved to provide a streamlined surface.
- 5. The headlight arranged at a front portion of a vehicle body of a motorcycle according to claim 1, wherein said lens is curved and has an outer surface which is smoothly joined together with a cowling so as to provide a flush surface thus providing a streamlined outer surface.
- 6. The headlight arranged at a front portion of a vehicle body of a motorcycle according to claim 2, wherein said central low-bean lamp reflector is a parabolic shaped mirror for projecting light from said central low-beam lamp onto a road surface.
- 7. The headlight arranged at a front portion of a vehicle body of a motorcycle according to claim 6, and further including a lens positioned a predetermined distance relative to said central low-beam lamp reflector wherein light reflected by said parabolic shaped mirror provides parallel rays of light that project from said parabolic shaped mirror that are refracted by the lens to provide a predetermined distribution of low beam light.
- 8. The headlight arranged at a front portion of a vehicle body of a motorcycle according to claim 7, wherein light is reflected by an upper portion, a lower portion, a left side portion and a right side portion of said the parabolic shaped mirror of said central low-beam lamp reflector for increasing brightness of the reflected light without increasing a rated power of the low-beam lamp.
- 9. The headlight arranged at a front portion of a vehicle body of a motorcycle according to claim 2, wherein said left high-beam lamp reflector is a parabolic shaped mirror for projecting light from said left high-beam lamp onto a road surface.
- 10. The headlight arranged at a front portion of a vehicle body of a motorcycle according to claim 9, and further including a lens positioned a predetermined distance relative to said left high-beam lamp reflector wherein light reflected by said parabolic shaped mirror provides parallel rays of light that project from said parabolic shaped mirror that are refracted by the lens to provide a predetermined distribution of high beam light.
- 11. The headlight arranged at a front portion of a vehicle body of a motorcycle according to claim 10, wherein light is reflected by an upper portion, a lower portion, a left side portion and a right side portion of said the parabolic shaped mirror of said left high-beam lamp reflector for increasing brightness of the reflected light without increasing a rated power of the high-beam lamp.
- 12. The headlight arranged at a front portion of a vehicle body of a motorcycle according to claim 2, wherein said right high-beam lamp reflector is a parabolic shaped mirror for projecting light from said right high-beam lamp onto a road surface.
- 13. The headlight arranged at a front portion of a vehicle body of a motorcycle according to claim 12, and further including a lens positioned a predetermined distance relative to said right high-beam lamp reflector wherein light reflected by said parabolic shaped mirror provides parallel rays of light that project from said parabolic shaped mirror that are refracted by the lens to provide a predetermined distribution of high beam light.
- 14. The headlight arranged at a front portion of a vehicle body of a motorcycle according to claim 13, wherein light is reflected by an upper portion, a lower portion, a left side portion and a right side portion of said the parabolic shaped mirror of said right high-beam lamp reflector for increasing brightness of the reflected light without increasing a rated power of the high-beam lamp.
- 15. A headlight for a vehicle comprising:a housing having a central portion, a left portion and a right portion; a central low-beam lamp arranged in said central portion of said housing for providing a source of low-beam light; a central reflector operatively positioned relative to said central low-beam lamp; a left high-beam lamp arranged in said left portion of said housing for providing a source of high-beam light; a left high-beam reflector operatively positioned relative to said left high-beam lamp; a right high-beam lamp arranged in said right portion of said housing for providing a source of high-beam light; and a right high-beam reflector operatively positioned relative to said right high-beam lamp; a lens positioned to cover said low-beam lamp, said left high-beam lamp, and said right high-beam lamp; wherein said central low-beam lamp utilizes the central low-beam reflector, said left high-beam lamp utilizes the left high-beam reflector and said right high-beam lamp utilizes the right high-beam reflector for increasing brightness of the reflected light without increasing a rated power of the central low-beam lamp, the left high-beam lamp and the right high-beam lamp; and said left and right high-beam lamps are symmetrically arranged with respect to the low-beam lamp so as to be substantially equally spaced therefrom, such that the illumination condition on the road surface by a high beam in the case of cornering to the left with the vehicle body inclined to the left can be made similar to that in the case of cornering to the right with the vehicle body inclined to the right.
- 16. The headlight for a vehicle according to claim 15, wherein the central low-beam lamp reflector has a predetermined radius of curvature that is larger relative to a radius of curvature of the left high-beam lamp reflector and the right high-beam lamp reflector.
- 17. The headlight for a vehicle according to claim 15, wherein said lens is curved to provide a streamlined surface.
- 18. The headlight for a vehicle according to claim 15, wherein said lens is curved and has an outer surface which is smoothly joined together with a cowling so as to provide a flush surface thus providing a streamlined outer surface.
- 19. The headlight for a vehicle according to claim 15, wherein said central low-beam lamp reflector is a parabolic shaped mirror for projecting light from said central low-beam lamp onto a road surface.
- 20. The headlight for a vehicle according to claim 19, and further including a lens positioned a predetermined distance relative to said central low-beam lamp reflector wherein light reflected by said parabolic shaped mirror provides parallel rays of light that project from said parabolic shaped mirror that are refracted by the lens to provide a predetermined distribution of low beam light.
- 21. The headlight for a vehicle according to claim 19, wherein light is reflected by an upper portion, a lower portion, a left side portion and a right side portion of said the parabolic shaped mirror of said central low-beam lamp reflector for increasing brightness of the reflected light without increasing a rated power of the low-beam lamp.
- 22. The headlight for a vehicle according to claim 15, wherein said left high-beam lamp reflector is a parabolic shaped mirror for projecting light from said left high-beam lamp onto a road surface.
- 23. The headlight for a vehicle according to claim 22, and further including a lens positioned a predetermined distance relative to said left high-beam lamp reflector wherein light reflected by said parabolic shaped mirror provides parallel rays of light that project from said parabolic shaped mirror that are refracted by the lens to provide a predetermined distribution of high beam light.
- 24. The headlight for a vehicle according to claim 22, wherein light is reflected by an upper portion, a lower portion, a left side portion and a right side portion of said the parabolic shaped mirror of said left high-beam lamp reflector for increasing brightness of the reflected light without increasing a rated power of the high-beam lamp.
- 25. The headlight for a vehicle according to claim 15, wherein said right high-beam lamp reflector is a parabolic shaped mirror for projecting light from said right high-beam lamp onto a road surface.
- 26. The headlight for a vehicle according to claim 25, and further including a lens positioned a predetermined distance relative to said right high-beam lamp reflector wherein light reflected by said parabolic shaped mirror provides parallel rays of light that project from said parabolic shaped mirror that are refracted by the lens to provide a predetermined distribution of high beam light.
- 27. The headlight for a vehicle according to claim 25, wherein light is reflected by an upper portion, a lower portion, a left side portion and a right side portion of said the parabolic shaped mirror of said right high-beam lamp reflector for increasing brightness of the reflected light without increasing a rated power of the high-beam lamp.
Priority Claims (1)
Number |
Date |
Country |
Kind |
11-216752 |
Jul 1999 |
JP |
|
US Referenced Citations (4)
Foreign Referenced Citations (1)
Number |
Date |
Country |
A04092731 |
Mar 1992 |
JP |