CN101514793B - Projection-type head lamp capable of reinforcing light in dark space - Google Patents
Projection-type head lamp capable of reinforcing light in dark space Download PDFInfo
- Publication number
- CN101514793B CN101514793B CN2008100804996A CN200810080499A CN101514793B CN 101514793 B CN101514793 B CN 101514793B CN 2008100804996 A CN2008100804996 A CN 2008100804996A CN 200810080499 A CN200810080499 A CN 200810080499A CN 101514793 B CN101514793 B CN 101514793B
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- Prior art keywords
- light
- illuminating part
- projection
- dark space
- lens
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/24—Light guides
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention relates to a projection-type head lamp capable of reinforcing light in a dark space, which comprises a lamp holder, an illuminating part, a shading plate and a light guide plate. An accommodating space is defined by the lamp holder, and the lamp holder comprises a reflecting shade and a lens which is arranged on the front side of the reflecting shade. The illuminating part is arranged in the accommodating space and arranged along an optical axis, and the light emitted by the illuminating part is refracted by the lens and transmitted forwards. The shading plate is assembled on the lamp holder and positioned between the illuminating part and the lens, and is used for shading partial light emitted by the illuminating part. The light emitted downwards by the illuminating part is transmitted towards the lens because the light guide plate is arranged under the optical axis to make the light transmitted by the lens transmit forwards and upwards so as to reinforce the light in the dark space above the optical axis.
Description
Technical field
The present invention relates to a kind of projection-type head lamp, particularly relate to a kind of projection-type head lamp of automobile-used Strengthenable light in dark space.
Background technology
When vehicle ' is set out on a journey; For in response to different road conditions and sight line demand; Headlight for vehicle can be divided into high beam, dipped headlights; Or instant and near light lamp one and can make kenel such as switching, and have at present a kind of be applied to headlight be designed to projection-type (Poly-Ellipsoid System is called for short PES) headlight.As shown in Figure 1; Be a kind of projection-type headlight as dipped headlights; And comprise: one define an accommodation space 610 reflection shield 61, be installed in this accommodation space 610 and prolong illuminating part that a horizontal optical axis X is provided with 62, and be assembled in the housing (scheming not show) of these reflection shield 61 front sides, and the lens 64 that are installed on this housing from the shadow shield 63, that these reflection shield 61 root edges extend upward and the apical margin height is concordant with this optical axis X.Wherein, the light that this illuminating part 62 sends can receive the interception of 61 reflections of this reflection shield and this shadow shield 63, makes after the rays pass through lens 64 mainly to be towards the zone level of optical axis X below or to penetrate slightly down, reaches the effect of dipped headlights whereby.Though above-mentioned headlight can be used as dipped headlights; But because light mainly is to concentrate the zone that diverges in optical axis X below; The illumination that causes the zone (below be called the dark space) of optical axis X top to receive is not enough, generally speaking, wants 64 candle light (candela in headlight the place ahead at least greater than the dark space luminosity at 18 meters places; Be abbreviated as cd) above just enough; And the light in dark space of this kind headlight is obviously not enough, therefore may cause the driver when driving at night, can't know the higher traffic sign in position is set on the identification road.
Traffic safety can be influenced because light in dark space is not enough, so there are many light in dark space to do the reinforcement design at present to low beam formula headlight.Consult Fig. 2, United States Patent (USP) notification number US6 for example, 736; No. 533 patent cases; The headlight that its prior art provides is to increase in shadow shield 71 front sides an auxiliary shield 72 is set, and this auxiliary shield 72 can reflect the light that a part penetrates downwards; The reinforcement light A1 of deviation penetrates to make light form upwards through these lens 73 backs, reaches the effect of reinforcing light in dark space whereby.Consulting Fig. 3, and the summary of the invention of this United States Patent (USP) case itself, is on shadow shield 81, to offer a perforation 810, and an auxiliary shield 82 is arranged at the inboard of shadow shield 81, also can reach the effect of reinforcing light in dark space by these structural improvements.
In addition, No. 2001/0019484 patent case of U.S. Patent Publication is directly to do to change design in shadow shield to come reinforcing light in dark space, and other also has many related patent U.S. Patent No. cases, therefore enumerates no longer one by one.Can be known that by above explanation headlight light in dark space deficiency was great for the traffic safety influence in the past, this disappearance remains to be improved.
Summary of the invention
The objective of the invention is is providing a kind of projection-type head lamp that has good leaded light effect and can reinforcing light in dark space.
The projection-type head lamp of Strengthenable light in dark space of the present invention comprises: a lamp socket, an illuminating part, a shadow shield, and a LGP.This lamp socket defines an accommodation space, and lamp socket comprises a reflection shield, and one be arranged on this reflection shield front side lens.This illuminating part is installed in this accommodation space and along an optical axis setting, the light that this illuminating part sends is to be penetrated forward by this lens refraction.This shadow shield is assembled on this lamp socket and is positioned between this illuminating part and lens, and shadow shield blocks the part light that illuminating part sends.This LGP be arranged on this optical axis below and with the light of illuminating part towards this lens conduction, make the light of deriving penetrate forward and up by these lens.
Beneficial effect of the present invention is: make the light of being derived by these lens penetrate forward and up by this LGP, with the light of dark space, reinforcement optical axis top.
Description of drawings
Fig. 1 is a kind of side view cutaway drawing of headlight in the past;
Fig. 2 is a side view cutaway drawing, shows the headlight that prior art disclosed of the 6th, 736, No. 533 patent cases of United States Patent (USP) notification number;
Fig. 3 is a side view cutaway drawing, shows the headlight of the 6th, 736, No. 533 patent cases of United States Patent (USP) notification number;
But Fig. 4 is the three-dimensional combination figure of subelement of a most preferred embodiment of the projection-type head lamp of the present invention's reinforcing beams in dark area;
Fig. 5 is the three-dimensional exploded view of the subelement of this most preferred embodiment;
Fig. 6 is the side view cutaway drawing of this most preferred embodiment.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is elaborated:
Consult Fig. 4,5,6, but the most preferred embodiment of the projection-type head lamp of the present invention's reinforcing beams in dark area comprises: a lamp socket 1, is installed in illuminating part 2 in this lamp socket 1, a thermal insulation board 3, a shadow shield 4, and a LGP 5.
This lamp socket 1 defines an accommodation space 10; And comprise that clamshell 12, that a reflection shield 11, around a horizontally extending optical axis L is combined in these reflection shield 11 front sides is installed in the lens 13 of these clamshell 12 front sides, and one be attached at these reflection shield 11 rears luminous installation portion 14.Wherein, this reflection shield 11 has one and is arranged with and the caulking groove 111 of arc Qu Yanshen towards outer peripheral face from inner circumferential surface.These lens 13 are to be positioned at the place ahead of illuminating part 2 with 12 assemblings of this clamshell, and make the light refraction of illuminating part 2 and exhale forward.This illuminating part 2 is mounted on this luminous installation portion 14, and the center of illuminating part 2 is that the position is on this optical axis L.
These thermal insulation board 3 peripheries are to cooperate the inner peripheral surface shape of reflection shield 11 and design, and level is plugged in to relend in this caulking groove 111 by several screws and reflection shield 11 and fixes, and the height and position of thermal insulation board 3 is to be positioned at this illuminating part 2 belows.This thermal insulation board 3 has a logical light mouth 31 that runs through its upper and lower surface, and this logical light mouth 31 is the front side lower positions that are positioned at illuminating part 2.
This shadow shield 4 is the long slab sheet of a upright and horizontal expansion, and both sides respectively with this reflection shield 11 screw locks assembling, the apical margin of this shadow shield 4 is to be positioned at sustained height with this optical axis L, and shadow shield 4 is used to block the part light that this illuminating part 2 is exhaled.
This LGP 5 is that level board sheet and screw lock are below this thermal insulation board 3; But this LGP 5 is one-body molded but be not limited thereto by the material of leaded light; And has a incidence surface 51 towards this illuminating part 2; And the exiting surface 52 with incidence surface 51 back spans, the incidence surface 51 of present embodiment has the protuberance of several indentations, and this exiting surface 52 has the bent protuberance of several arcs; The design of this incidence surface 51 can be conducted the part light of illuminating part 2 emissions via this LGP 5, penetrated outward by this exiting surface 52 again.
The present invention in use; The light that this illuminating part 2 sends can receive this reflection shield 11 reflections; And the light that illuminating part 2 upwards penetrates can be penetrated by these shadow shield 4 apical margins after being reflected by reflection shield 11; And be projeced into this place, optical axis L below and form the effect of dipped headlights via the refraction of these lens 13, and illuminating part 2 forward also the light of downward oblique ejaculation can pass this logical light mouth 31 and get into the incidence surface 51 of this LGP 5, the zigzag design of this incidence surface 51 can help to import light; And light is formed forward and the reinforcement light B that makes progress slightly penetrates via exiting surface 52, lens 13 deviations; Said reinforcement light B can project the dark space of illuminating part 2 preceding number formulary meters, even the dark space at about 25 meters places, illuminating part 2 the place aheads can project, and then makes the dark space become comparatively bright.Design of the present invention makes the dark space luminosity at 25 meters places, illuminating part 2 the place aheads can reach about 100 ~ 200 candle lights.
Need to prove; The present invention is provided with this thermal insulation board 3, can avoid the illuminating part 2 luminous heat energy that produce to transmit downwards, so this thermal insulation board 3 has effect of heat insulation; But for the light that illuminating part 2 is launched downwards can be delivered to this LGP 5; So thermal insulation board 3 needs this to put this logical light mouth 31, certainly, it is necessity that the present invention does not need so that this thermal insulation board 3 to be set.In addition, present embodiment is that the head lamp with dipped headlights is an example, and certainly, the present invention also can be used in the head lamp with instant and near light lamp switching effect.
Because in projection-type head lamp, generally speaking the light that sends downwards of this illuminating part 2 normally is blocked, utilization rate is minimum, and the present invention is arranged on this optical axis L below by this LGP 5 with leaded light effect; The light that illuminating part 2 is penetrated downwards can take out utilization; And the refraction action of the structural design fit lens 13 of LGP 5, light is derived with reinforcing light in dark space forward and up, that is to say; The present invention will not have the light of effect to derive originally by LGP 5; So can light be done the most effectively to utilize, improve the not enough shortcoming of light in dark space in the past simultaneously, reach the object of the invention really.
Claims (5)
1. the projection-type head lamp of a Strengthenable light in dark space; Comprise: one defines the lamp socket of an accommodation space, an illuminating part that is installed in this accommodation space and is provided with along an optical axis; And shadow shield of assembling with this lamp socket; This lamp socket comprises a reflection shield; And one be arranged on this reflection shield front side and make the light refraction that illuminating part sends and the lens that penetrate forward, and this shadow shield is positioned between this illuminating part and lens and blocks the part light that illuminating part sends, and it is characterized in that:
The projection-type head lamp of this Strengthenable light in dark space also comprises: a slice is arranged on this optical axis below and makes light and the LGP that up penetrates forward towards this lens conduction the light of illuminating part.
2. the projection-type head lamp of Strengthenable light in dark space as claimed in claim 1 is characterized in that: this LGP has an incidence surface that imports towards this illuminating part and with light, and one with the incidence surface back span towards the exiting surface of lens.
3. the projection-type head lamp of Strengthenable light in dark space as claimed in claim 1; It is characterized in that: this reflection shield has a caulking groove that is arranged with towards outer peripheral face from inner circumferential surface, and the projection-type head lamp of this Strengthenable light in dark space also comprises the thermal insulation board that a slice is installed in this caulking groove and is positioned at this illuminating part below.
4. the projection-type head lamp of Strengthenable light in dark space as claimed in claim 3 is characterized in that: this thermal insulation board has a light that runs through its surface and supply illuminating part through so that the Tong Guangkou that light is injected towards this LGP.
5. the projection-type head lamp of Strengthenable light in dark space as claimed in claim 3 is characterized in that: this LGP is to extend forward from this thermal insulation board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100804996A CN101514793B (en) | 2008-02-18 | 2008-02-18 | Projection-type head lamp capable of reinforcing light in dark space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100804996A CN101514793B (en) | 2008-02-18 | 2008-02-18 | Projection-type head lamp capable of reinforcing light in dark space |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101514793A CN101514793A (en) | 2009-08-26 |
| CN101514793B true CN101514793B (en) | 2012-05-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100804996A Expired - Fee Related CN101514793B (en) | 2008-02-18 | 2008-02-18 | Projection-type head lamp capable of reinforcing light in dark space |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101514793B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107489985A (en) * | 2016-06-13 | 2017-12-19 | 巨铠精密工业股份有限公司 | Vehicular headlamps |
| TWI651489B (en) * | 2018-01-29 | 2019-02-21 | 誠益光電科技股份有限公司 | Smart headlight |
-
2008
- 2008-02-18 CN CN2008100804996A patent/CN101514793B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN101514793A (en) | 2009-08-26 |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20120530 Termination date: 20150218 |
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| EXPY | Termination of patent right or utility model |