CN108302450A - Projection-type head lamp - Google Patents
Projection-type head lamp Download PDFInfo
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- CN108302450A CN108302450A CN201610807160.6A CN201610807160A CN108302450A CN 108302450 A CN108302450 A CN 108302450A CN 201610807160 A CN201610807160 A CN 201610807160A CN 108302450 A CN108302450 A CN 108302450A
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- focus
- central shaft
- luminescence unit
- projection
- speculum
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Abstract
A kind of projection-type head lamp, including a reflection module, a lens and an illuminating module.The reflection module includes one first speculum and one second speculum positioned at the left and right sides of a central shaft.First speculum has a primary optic axis intersected with the central shaft, and one first focus on the primary optic axis and one second focus.Second speculum has second optical axis intersected with the central shaft, and the third focus on second optical axis and one the 4th focus.The illuminating module includes the luminescence unit of two left and right settings.The improvement of the present invention essentially consists in, a center position of each luminescence unit, all relative to the primary optic axis towards the distortion, can so increase the region of left and right sides projecting illumination in front of head lamp, promote illumination zone.
Description
Technical field
The present invention relates to a kind of head lamps, more particularly to a kind of projection-type (PES) head lamp.
Background technology
Projection-type head lamp (Poly-Ellipsoid Headlamp System, PES) is mainly comprising an at least light source, one anti-
Penetrate mirror, a barn door and a lens.Far lamp and low beam handoff functionality wherein can reach by barn door movement.And about anti-
The speculum with one or more elliptic reflecting surface may be used in the design for penetrating mirror, is taken by the mirror structure
With designs such as light-source structure, positions, required smooth shape is projected.Such as one kind disclosed in CN102460002 Patent Cases
For the illumination module of vehicle, wherein can distinguish comprising one first concave reflector and one second concave reflector and two
The top light source reflected by first concave reflector and the second concave reflector.Due to the two top light source of the Patent Case
It is all to be symmetrical set, in addition the center of two light source is located at the focus of two speculum with two reflector
On, thus the light of two light source via two speculum reflection post-concentration coke on the optical axis of the illumination module, two light source
Light projected area it is completely overlapped, and the range of exposures on left and right directions can not be expanded, therefore to be improved.
Invention content
The purpose of the present invention is to provide a kind of projection-type head lamps that can promote illumination zone.
The projection-type head lamp of the present invention, including a reflection module and a lens, define one and pass through the reflection module
The reflection module is divided into a first area of left and right settings and one second by center and horizontal central shaft, the central shaft
Region, the reflection module include that first speculum for being located at the first area and one are located at the of the second area
Two-mirror, the lens separation are arranged on front side of the reflection module and on the central shafts, it is characterised in that：The reflection module
First speculum have a primary optic axis that an intersection point is intersected at the central shaft, and be located at the primary optic axis on
First focus and second focus, which is located at the first area of the reflection module, second focus
Positioned at the second area of the reflection module, which has second light that the intersection point is intersected at the central shaft
Axis, and a third focus on second optical axis and the 4th focus, the third focus are located at the reflection module
The second area, the 4th focus is located at the first area of the reflection module, define one article pass through the 4th focus with should
The line of second focus, the line intersect at a coincidence point with the central shaft, which also includes a luminous mould
Group, the illuminating module include between the reflection module and the lens and first luminescence unit of left and right settings and one
Two luminescence units, first luminescence unit are located in first focus, and include the first light emitting diode of several left and right settings
Chip, one be located at the first luminescence unit center and the first nodal point between first focus and the central shaft, with
And first incident point being located in first focus, after the light of first luminescence unit is reflected by first speculum
It is projected towards the lens, and first incident point is accordingly projeced into the coincidence point；Second luminescence unit is located at third coke
On point, and include the second LED wafer of several left and right settings, one be located at and the second luminescence unit center and be located at
The second central point between the third focus and the central shaft and second incident point being located in the third focus, should
The light of second luminescence unit projects after being reflected by second speculum towards the lens, and second incident point accordingly projects
In in the coincidence point.
Projection-type head lamp of the present invention, the left and right of each the first LED wafer is to of same size, this
Two focuses at a distance from the central shaft, be equal to first LED wafer half from left and right to width, it is each
To of same size, the 4th focus is equal to described second at a distance from the central shaft for the left and right of a second LED wafer
Half of the left and right of LED wafer to width.
Projection-type head lamp of the present invention, first luminescence unit include four the first LED wafers, this
One incident point fall by the side number far from the central shaft Lai second the first LED wafer center, this
Two luminescence units include four the second LED wafers, second incident point fall by far from the central shaft side number Lai
Second the second LED wafer center.
Projection-type head lamp of the present invention, first speculum and second speculum are respectively an elliptical reflecting
Mirror.
Projection-type head lamp of the present invention, first speculum are connect with second mirror integral.
Projection-type head lamp of the present invention, the reflection module is symmetrical with the central shaft, first luminescence unit
It is symmetrical with the central shaft with second luminescence unit.
Projection-type head lamp of the present invention also includes a shading piece between the illuminating module and the lens, should
The light that shading piece can be such that the illuminating module projects at one, which forms the low beam position of low beam and one, makes the illuminating module
It is moved between the far lamp position of the light formation far lamp projected.
Projection-type head lamp of the present invention, there are one tops for shading piece tool, and the height at the top of this is in the low beam position
When, it is higher than at the far lamp position.
The beneficial effects of the present invention are：By the first nodal point of first luminescence unit relative to the primary optic axis court
The distortion, rather than in first focus, the second central point of second luminescence unit is relative to second light
Axis can increase the region of left and right sides projecting illumination in front of head lamp, increase towards the distortion, rather than in the third focus
Add illumination zone.
Description of the drawings
The other features and effect of the present invention, will clearly be presented in the embodiment with reference to schema, wherein：
Fig. 1 is a stereogram exploded view, illustrates an embodiment of projection-type head lamp of the present invention；
Fig. 2 is a schematic top plan view, illustrate the embodiment one reflection module and an illuminating module between configuration relation with
The opticpath projected；
Fig. 3 is the partial enlarged view of Fig. 2, illustrates that the embodiment projects one first imaging and one second imaging, this first
Imaging refers to four blocks for including oblique line, which refers to four blocks for including gray patches；
Fig. 4 is a side view cutaway drawing of the embodiment, illustrates the opticpath when embodiment projects low beam light shape；
Fig. 5 is a side view cutaway drawing of the embodiment, illustrates the opticpath when embodiment projects far lamp light shape.
Specific implementation mode
Refering to fig. 1~4, an embodiment of projection-type head lamp of the present invention has far lamp and low beam handoff functionality, and includes one
A radiating seat 6, one reflects 2, one, lens illuminating module, the 3, mounting brackets 4 of module 1, one and a shading piece 5.
The radiating seat 6 includes several heat dissipation walls 61 for being spaced and extending downward.The radiating seat 6 can be used for loss this shine mould
The thermal energy of group 3.
The reflection module 1 is assembled in 6 top of radiating seat, and definition one is central and front and back to water by the reflection module 1
The reflection module 1 is divided into a first area 11 and one second area for left and right settings by the flat central axis L extended, the central axis L
Domain 12.The reflection module 1 is symmetrical with the central axis L, and includes first speculum for being located at the first area 11
13 and one it is adjacent with first speculum 13 or so and positioned at the second area 12 the second speculum 14.This is first anti-
It is all an elliptical reflector that mirror 13, which is penetrated, with second speculum 14, so the surface of the two forward is all an elliptic reflecting surface,
And first speculum 13 and 14 integrally connected of the second speculum.
Wherein, which has a primary optic axis M1 that an intersection point 15 is intersected at the central axis L, with
And first focus 131 on primary optic axis M1 and second focus 132, wherein the intersection point 15 be located at this first
Between focus 131 and second focus 132.First focus 131 is respectively the ellipse of first speculum 13 with second focus 132
Two focuses of round.First focus 131 is located at the first area 11 of the reflection module 1.Second focus 132 is located at
The second area 12 of the reflection module 1, and second focus 132 is located at the position compared with front relative to first focus 131
It sets.
Second speculum 14 has one and intersects at the second optical axis M2 of the intersection point 15 with the central axis L, and is located at
A third focus 141 on second optical axis M2 and the 4th focus 142, the wherein intersection point 15 are located at the third focus
141 and the 4th between focus 142.The third focus 141 and the ellipse that the 4th focus 142 is respectively second speculum 14
Two focuses of shape.The third focus 141 is located at the second area 12 of the reflection module 1.It is anti-that 4th focus 142 is located at this
The first area 11 of module 1 is penetrated, and the 4th focus 142 is located at the position compared with front relative to the third focus 141.It is fixed
Justice one passes through the line X of the 4th focus 142 and second focus 132 of first speculum 13, line X and the central shaft
L intersects at a coincidence point 16.
The lens 2 of the present embodiment are a convex lenses, are assembled in 4 front side of mounting bracket, and be spaced on the reflection mould
On front side of group 1 and in the central axis L.The light that the lens 2 can be reflected the illuminating module 3 by the reflection module 1
It is projected forward after focusing, car light light luminance can be promoted.
The illuminating module 3 is assembled in 6 top surface of radiating seat, and includes between the reflection module 1 and the lens 2 and left and right
First luminescence unit 31 being arranged and second luminescence unit 32.First luminescence unit 31 and second luminescence unit
32 is symmetrical with the central axis L, and the element that the two includes is identical, and component size is also identical, and detailed description are as follows.
First luminescence unit 31 is located at the first area 11 of the reflection module 1, and is located at first focus 131
On.First luminescence unit 31 includes the first LED wafer 311 of several left and right settings, and one first of interval
Central point 312 and first incident point 313.Wherein, which refers to the centre bit of first luminescence unit 31
It sets, and between first focus 131 and the central axis L.In the present embodiment, first LED wafer 311
Quantity be four, first incident point 313 fall by far from the central axis L side number Lai second the first light-emitting diodes
The center of pipe chip 311, and first incident point 313 is located in first focus 131.
Second luminescence unit 32 is located at the second area 12 of the reflection module 1, and is located at the third focus 141
On.Second luminescence unit 32 includes the second LED wafer 321 of several left and right settings, and one second of interval
Central point 322 and second incident point 323.Wherein, which refers to the centre bit of second luminescence unit 32
It sets, and between the third focus 141 and the central axis L.In the present embodiment, second LED wafer 321
Quantity be four, second incident point 323 fall by far from the central axis L side number Lai second the second light-emitting diodes
The center of pipe chip 321, and second incident point 323 is located in the third focus 141.
In design, the left and right of every 1 first LED wafer 311 of the present embodiment is identical to width w1, this second
Focus 132 and central axis L distance d1 is equal to the left and right of the first LED wafer 311 to the half of width w1.
The left and right of every 1 second LED wafer 321 is identical to width w2, the 4th focus 142 and central axis L distance d2,
Equal to the second LED wafer 321 half from left and right to width w2.In this example, w1=w2=2 × d1=2
×d2。
The mounting bracket 4 is the frame body of upright and local hollow out, is mounted thereon for the shading piece 5 and the lens 2.Due to
4 non-present invention of mounting bracket improves emphasis, so no longer illustrating.
Refering to fig. 1,4,5, which can be by a pivot 501 and a torque spring 502, and has elastic reset power
And be pivotably mounted on the mounting bracket 4, and between the illuminating module 3 and the lens 2.The shading piece 5 can block the hair
The light of optical mode group 3 can simultaneously be moved in the low beam position of a such as Fig. 4 between one such as Fig. 5 far lamp position.The shading piece 5
There are one the tops for being located at 51 top of articulated section positioned at bottom and the articulated section 51 being articulated on the mounting bracket 4 and one for tool
Portion 52.
Refering to Fig. 2~4, the present invention is in use, the light of first luminescence unit 31 is reflected by first speculum 13
It is projected afterwards towards the lens 2, and one and first luminescence unit 31 heterochiral first is formed about in the coincidence point 16
Imaging 71 (comprising Fig. 3 by four oblique line blocks from left to right), and first incident point 313 is accordingly projeced into the coincidence point 16
On.Wherein, which generally has the picture of 1.5 the first LED wafers 311 to fall in the second area 12,
The picture of 2.5 the first LED wafers 311 is fallen in the first area 11.Similarly, the light of second luminescence unit 32 by
To second speculum 14 reflect after towards the lens 2 project, and in the coincidence point 16 be formed about one with this second shine
The imaging of unit 32 heterochiral second 72 (is turned left four grey blocks comprising Fig. 3 by the right side), and second incident point 323 is right
It is projeced into answering in the coincidence point 16.Wherein, which generally has 1.5 the second LED wafers 321
As the picture for falling in 11,2.5 the second LED wafers 321 in the first area is fallen in the second area 12.
This first imaging 71 with this second imaging 72 have it is local it is Chong Die (three centrally located such as Fig. 3 blocks for be overlapped
Place), can promote luminous intensity in overlapping, and first imaging 71 with this second be imaged 72 be superimposed after be formed by whole imaging
Left and right to length, the left and right than first imaging 71 is long to length, and also the left and right than second imaging 72 is long to length, because
This, the length being imaged after superposition is effectively elongated, and can be promoted the left and right in whole light extraction region of the invention to length, be increased light-emitting surface
Product and illumination zone, and left and right sides uniform light.Overall light after superposition can forward be projected via the lens 2, with shape
At the light shape for meeting regulation.
Refering to Fig. 4,5, in addition, when carrying out low beam with far lamp switching, motor, electric wire are mainly coordinated in the way of automatically controlled
Equal circuits design, controls the shading piece 5 and changes position.When the shading piece 5 is located at the low beam position of Fig. 4,52, the top
Set higher, which can block some light (such as Fig. 4 opticpath A) of 3 forward projects of illuminating module, this is made to shine
The light that module 3 is projected from the lens 2 is mainly projected toward "cut-off"line lower section, forms the low beam light shape for meeting regulation.It wants
When switching far lamp, first control the shading piece 5 makes its top 52 downwards with the articulated section 51 from the low beam position for pivoting centre
It pivots, until the shading piece 5 is located at the far lamp position of Fig. 5,52 position of top of the shading piece 5 declines at this time, the shading piece 5
The light sheltered from changes, and makes some light that the illuminating module 3 projects forward that can be projeced into above "cut-off"line, shape
At the far lamp light shape for meeting regulation.Emphasis is improved with low beam non-present invention due to how to switch far lamp, so no longer illustrating.And
Actually move mode of the shading piece 5 between the low beam position and the far lamp position is not limited to of the present invention there are many kind
Pivotably.
In conclusion by the first nodal point 312 of first luminescence unit 31 relative to primary optic axis M1 towards in this
Mandrel L offset, rather than in first focus 131, the second central point 322 of second luminescence unit 32 relative to this
Two optical axis M2 are deviated towards the central axis L, rather than in the third focus 141, make first luminescence unit 31 with this second
The light projection scope of luminescence unit 32 has local overlapping, can increase the luminous intensity of middle section, and light projection scope is not
The left and right lateral area of overlapping is then additional increased illumination region, helps to promote illumination zone, and brightness uniformity.Again
In addition 311 quantity of the first LED wafer is several, 321 quantity of the second LED wafer is also several, passes through number
A light emitting diode also contributes to promote vehicle lamp brightness, so can reach the purpose of the present invention really.
Claims (8)
1. a kind of projection-type head lamp, including：One reflection module and a lens, define one it is central by the reflection module and
Horizontal central shaft, the central shaft by the reflection module divide into left and right settings a first area and a second area,
The reflection module includes the second reflection that first speculum for being located at the first area and one are located at the second area
Mirror, the lens separation are arranged on front side of the reflection module and on the central shafts, it is characterised in that：The reflection module this
One speculum has a primary optic axis that an intersection point is intersected at the central shaft, and one on the primary optic axis
First focus and second focus, first focus are located at the first area of the reflection module, which is located at should
The second area of module is reflected, which has second optical axis that the intersection point is intersected at the central shaft, with
And a third focus on second optical axis and the 4th focus, the third focus be located at the reflection module this
Two regions, the 4th focus are located at the first area of the reflection module, define one article by the 4th focus and second coke
The line of point, the line intersect at a coincidence point with the central shaft, which also includes an illuminating module, the hair
Optical mode group includes between the reflection module and the lens and first luminescence unit of left and right settings and one second shine
Unit, first luminescence unit are located in first focus, and include the first LED wafer of several left and right settings, one
It is a to be located at the first luminescence unit center and the first nodal point between first focus and the central shaft and a position
The first incident point in first focus, the light of first luminescence unit reflected by first speculum after towards the lens
It projects, and first incident point is accordingly projeced into the coincidence point；Second luminescence unit is located in the third focus, and wraps
Include several left and right settings the second LED wafer, one be located at the second luminescence unit center and be located at the third focus
The second central point between the central shaft and second incident point being located in the third focus, the second luminous list
The light of member projects after being reflected by second speculum towards the lens, and second incident point is accordingly projeced into the coincidence point
On.
2. projection-type head lamp as described in claim 1, it is characterised in that：The left and right of each the first LED wafer to
Of same size, which is equal to the left and right of first LED wafer to width at a distance from the central shaft
Half, the left and right of each the second LED wafer to of same size, the 4th focus at a distance from the central shaft,
Equal to second LED wafer half from left and right to width.
3. projection-type head lamp as described in claim 1, it is characterised in that：First luminescence unit includes four first luminous two
Pole pipe chip, first incident point fall by the side number far from the central shaft Lai second the first LED wafer
Center, second luminescence unit include four the second LED wafers, which falls in by far from this
The center for second the second LED wafer that the side number of mandrel comes.
4. projection-type head lamp as described in claim 1, it is characterised in that：First speculum is respectively with second speculum
One elliptical reflector.
5. projection-type head lamp as described in claim 1, it is characterised in that：First speculum connects with second mirror integral
It connects.
6. projection-type head lamp as described in claim 1, it is characterised in that：The reflection module is symmetrical with the central shaft,
First luminescence unit is symmetrical with the central shaft with second luminescence unit.
7. the projection-type head lamp as described in any claim in claim 1 to 6, it is characterised in that：The projection-type head lamp is also
Include a shading piece between the illuminating module and the lens, which can be such that the illuminating module projects at one
It is moved between the far lamp position for the light formation far lamp that light forms the low beam position of low beam and one makes the illuminating module project
It is dynamic.
8. projection-type head lamp as claimed in claim 7, it is characterised in that：Shading piece tool is there are one top, the height at the top of this
Degree is higher than at the far lamp position at the low beam position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610807160.6A CN108302450B (en) | 2016-09-07 | 2016-09-07 | Projection type head lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610807160.6A CN108302450B (en) | 2016-09-07 | 2016-09-07 | Projection type head lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108302450A true CN108302450A (en) | 2018-07-20 |
| CN108302450B CN108302450B (en) | 2019-12-27 |
Family
ID=62871773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610807160.6A Active CN108302450B (en) | 2016-09-07 | 2016-09-07 | Projection type head lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108302450B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080316763A1 (en) * | 2007-06-25 | 2008-12-25 | Valeo Vision | Lighting module for motor vehicle headlight |
| CN102460002A (en) * | 2009-04-21 | 2012-05-16 | 法雷奥照明公司 | Lighting module and device for a vehicle with improved road function |
| JP2013110111A (en) * | 2011-11-22 | 2013-06-06 | Valeo Vision | Light-emitting device for vehicle headlight |
| CN105102883A (en) * | 2013-04-04 | 2015-11-25 | 市光工业株式会社 | Vehicle lamp |
-
2016
- 2016-09-07 CN CN201610807160.6A patent/CN108302450B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080316763A1 (en) * | 2007-06-25 | 2008-12-25 | Valeo Vision | Lighting module for motor vehicle headlight |
| CN102460002A (en) * | 2009-04-21 | 2012-05-16 | 法雷奥照明公司 | Lighting module and device for a vehicle with improved road function |
| JP2013110111A (en) * | 2011-11-22 | 2013-06-06 | Valeo Vision | Light-emitting device for vehicle headlight |
| CN105102883A (en) * | 2013-04-04 | 2015-11-25 | 市光工业株式会社 | Vehicle lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108302450B (en) | 2019-12-27 |
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