CN105333377A - Headlamp with adjustable illumination area - Google Patents

Headlamp with adjustable illumination area Download PDF

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Publication number
CN105333377A
CN105333377A CN201510924805.XA CN201510924805A CN105333377A CN 105333377 A CN105333377 A CN 105333377A CN 201510924805 A CN201510924805 A CN 201510924805A CN 105333377 A CN105333377 A CN 105333377A
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CN
China
Prior art keywords
control
light
headlamp
illumination
unit
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Granted
Application number
CN201510924805.XA
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Chinese (zh)
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CN105333377B (en
Inventor
周礼书
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHENGDU HENGKUN OPTICAL-ELECTRONIC TECHNOLOGY Co.,Ltd.
Original Assignee
霍永峰
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Priority to CN201510924805.XA priority Critical patent/CN105333377B/en
Publication of CN105333377A publication Critical patent/CN105333377A/en
Application granted granted Critical
Publication of CN105333377B publication Critical patent/CN105333377B/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00Arrangement of electric circuit elements in or on lighting devices
    • F21V23/003Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21WINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2107/00Use or application of lighting devices on or in particular types of vehicles
    • F21W2107/10Use or application of lighting devices on or in particular types of vehicles for land vehicles

Abstract

The invention relates to the technical field of illumination, in particular to a headlamp with an adjustable illumination area. The headlamp comprises a light source device, a control device and a ray casting device. The control device is arranged between the light source device and the ray casting device and formed by combining a plurality of independent units in an array, and each unit can independently control the passing characteristic of rays. The ray casting device casts the rays transmitted from the control device. According to the scheme, the control device is arranged between the light source device and the ray casting device and formed by combining the multiple independent units in the array, each unit can independently control the passing characteristic of rays, and then rays passing through the control device form different shapes by controlling the passing characteristic of each unit. Therefore, in the actual work state, different illumination areas can be obtained for the headlamp according to the illumination requirements under actual conditions, the driving safety is improved, and the application range of the headlamp is widened.

Description

The headlamp that a kind of field of illumination is adjustable
Technical field
The present invention relates to lighting technical field, be specifically related to the headlamp that a kind of field of illumination is adjustable.
Background technology
In technical field of automobile illumination, national publication GB7454-87 " automotive headlight uses and light adjustment technology is planned ", GB4599-2007 " headlamp luminous intensity distribution performance " and GB4660-2007 " lamps for vehicle silk bulb front fog lamp " propose clear and definite requirement to the luminous intensity of the far lighting of motor vehicle, lower beam illumination and fog lamp and direction of illumination.
In current head lamp structure, in order to adapt to different environments for use, normally include dipped headlights and high beam.
For the dipped beam of headlamp, in order to avoid light directive meeting vehicle and roadside pedestrian, require that emitted light must form "cut-off"line clearly, and for the formation of this "cut-off"line, shadow shield is mainly adopted to carry out this technology of shading at present, its principle is, the light that light source is launched, by arranging shadow shield, some light is blocked, and then form a light and shade region, form a "cut-off"line in penumbra, so, make its field of illumination meet the regulation of relevant criterion.
The formation basic theory of "cut-off"line in above-mentioned dim head lights field of illumination, although be used among current headlamp widely at present, but it still also exists the technological deficiency that can not avoid, the light-blocking members such as the light directive shadow shield that the light source being embodied in headlamp is launched, and then after grenade instrumentation, form required lighting pattern.In such a configuration, its lower beam illumination region formed of headlamp is completely fixed, and in use, can not adjust field of illumination, to realize the lighting demand tallied with the actual situation according to actual service condition.
So, need a kind of headlamp that can regulate field of illumination according to actual service condition at present badly.
Summary of the invention
The object of the invention is to: fix for current headlamp light source field of illumination, the deficiency that can not adjust, provide one actual service condition can adjust field of illumination, to realize the lighting demand tallied with the actual situation.
To achieve these goals, the technical solution used in the present invention is:
The headlamp that a kind of field of illumination is adjustable, include light supply apparatus, control device and light projection device, described control device is arranged between light supply apparatus and light projection device, control device is formed by multiple separate unit array combination, each unit can independently control light by characteristic, described light projection device projects the light that described control device transmits.
In the such scheme of the application, between light supply apparatus and light projection device, control device is set, control device is formed by multiple separate unit array combination, what each unit independently can control light passes through characteristic, by control unit pass through characteristic, and then make by the different shape of the formation of control device, so, under actual working state, driver can according to actual conditions, control the change by light shape by control device, and then control the field of illumination of headlamp, with the lighting demand tallied with the actual situation; Such as, in the section that road is narrow, when between vehicle and meeting vehicle, spacing is less, driver can reduce field of illumination by control device, avoids light to shine to meeting vehicle; And in the section of road conditions complexity, when needing large-scale field of illumination, driver also can expand field of illumination by controlling to hide, and then the field of illumination that acquisition one is comparatively wide, guarantee the safety of driving; And for some special circumstances, when needs special shape field of illumination, also can by control device to by being adjusted by light, and then obtain special field of illumination, so, based on above-mentioned, the headlamp of the application can according to the lighting demand of actual conditions, obtain different field of illuminations, not only increase the security of driving, have also been enlarged the scope of application of headlamp.
As the preferred version of the application, what the unit of described control device controlled light by the mode controlling transmitance passes through characteristic.
In the such scheme of the application, what the unit of control device controlled light by the mode controlling transmitance passes through characteristic, make, what the control device of the application not only can control light passes through shape, but also the intensity that can control by light, and then control the intensity of headlamp lighting light, expand the scope of application of the application's headlamp.
As another preferred version of the application, what the unit of described control device controlled light by the mode of reflection passes through characteristic.
In the such scheme of the application, what the unit of control device controlled light by the mode of reflection passes through characteristic, that is, the control device of the application optionally reflects some light, and passage light splitter, the conversion of other light conversion can be adopted again to be utilized by the light reflected, improve the utilization rate of light.
As another preferred version of the application, the unit of control device is micro-window of band barrier structure, and wherein the attitude of barrier structure can adjust, thus controls the characteristic by micro-window of light.
As the preferred version of the application, described light supply apparatus can be independently illuminating source, also can be the combination of illuminating source and optical module.
As the preferred version of the application, light projection device and control device have certain space length, and light projection device is clearly projected the image be positioned near control device at a distance at vertical direction.
In the such scheme of the application, light projection device all has a focus usually, when being positioned at this near focal point by missile body, light projection device can project pattern comparatively clearly, nearer by projection object focal point, light projection device just can project pattern more clearly, so in the scheme of the application, line grenade instrumentation and control device have certain space length, make light projection device project pattern clearly, meet the requirement of illumination.
As the preferred version of the application, described control device is through mode liquid crystal array light valve.
In the such scheme of the application, adopt through mode liquid crystal array light valve as control device, the control of light transmission part shape can be realized easily, so, in use, certain printing opacity shape can be formed by control device; And then the adjustment reached headlamp lighting region; Again on the one hand, through mode liquid crystal array light valve can also adjust printing opacity degree, so, the headlamp of the application can also be made can to adjust illumination intensity, further add the controllability of the application's headlamp, increase the scope of application of headlamp.
As the preferred version of the application, through mode liquid crystal array light valve is colored through mode liquid crystal array light valve, and the light color that grenade instrumentation is projected is controlled.
In the such scheme of the application, the light color that grenade instrumentation projects is controlled, expands the scope of application of the application's headlamp further.
As another preferred version of the application, described control device is reflective digital array of micromirrors.
As another preferred version of the application, described control device is micromechanical array structure.
Adopt micromechanical array structure as control device, it is simple, and reliable structure, reduction manufacturing cost that can be good, but also the reliability of headlamp can be improved.
When using the application's headlamp; when requiring illumination and not throwing light on frequent exchange; switching light sources frequently can not to be needed as traditional headlamp; only need to adjust control device; so; can also light source be protected, increase the life-span of light source, further improve the reliability of headlamp.
In sum, owing to have employed technique scheme, the beneficial effect of the application is:
The headlamp of the application according to the lighting demand of actual conditions, can obtain different field of illuminations, not only increases the security of driving, have also been enlarged the scope of application of headlamp.
The beneficial effect of other detailed description of the invention of the application:
1, have simply, and reliable structure, reduction manufacturing cost that can be good, but also the reliability of headlamp can be improved;
2, the headlamp of the application can adjust illumination intensity, further adds the controllability of the application's headlamp, increases the scope of application of headlamp;
3, the light color that projects of grenade instrumentation is controlled, expands the scope of application of the application's headlamp further;
4, when requiring illumination and not throwing light on frequent exchange, switching light sources frequently can not to be needed as traditional headlamp, only needs to adjust control device; so; can also light source be protected, increase the life-span of light source, further improve the reliability of headlamp.
Accompanying drawing explanation
Fig. 1 is the structural representation of the application,
Mark in figure: 1-light supply apparatus, 2-light projection device, 3-control device.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail.
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Embodiment: as shown in Figure 1,
The headlamp that a kind of field of illumination is adjustable, include light supply apparatus 1, control device 3 and light projection device 2, described control device 3 is arranged between light supply apparatus 1 and light projection device 2, control device 3 is formed by multiple separate unit array combination, each unit can independently control light by characteristic, described light projection device 2 projects the light that described control device 3 transmits.
In the such scheme of the present embodiment, control device 3 is set between light supply apparatus 1 and light projection device 2, control device 3 is formed by multiple separate unit array combination, what each unit independently can control light passes through characteristic, by control unit pass through characteristic, and then make by the different shape of the formation of control device 3, so, under actual working state, driver can according to actual conditions, control the change by light shape by control device 3, and then control the field of illumination of headlamp, with the lighting demand tallied with the actual situation; Such as, in the section that road is narrow, when between vehicle and meeting vehicle, spacing is less, driver can reduce field of illumination by control device 3, avoids light to shine to meeting vehicle; And in the section of road conditions complexity, when needing large-scale field of illumination, driver also can expand field of illumination by controlling to hide, and then the field of illumination that acquisition one is comparatively wide, guarantee the safety of driving; And for some special circumstances, when needs special shape field of illumination, also can by control device 3 to by being adjusted by light, and then obtain special field of illumination, so, based on above-mentioned, the headlamp of the present embodiment can according to the lighting demand of actual conditions, obtain different field of illuminations, not only increase the security of driving, have also been enlarged the scope of application of headlamp.
As the preferred version of the present embodiment, what the unit of described control device 3 controlled light by the mode controlling transmitance passes through characteristic.
In the such scheme of the present embodiment, what the unit of control device 3 controlled light by the mode controlling transmitance passes through characteristic, make, what the control device 3 of the present embodiment not only can control light passes through shape, but also the intensity that can control by light, and then control the intensity of headlamp lighting light, expand the scope of application of the present embodiment headlamp.
As another preferred version of the present embodiment, what the unit of described control device 3 controlled light by the mode of reflection passes through characteristic.
In the such scheme of the present embodiment, what the unit of control device 3 controlled light by the mode of reflection passes through characteristic, that is, the control device 3 of the present embodiment optionally reflects some light, and passage light splitter, the conversion of other light conversion can be adopted again to be utilized by the light reflected, improve the utilization rate of light.
As another preferred version of the present embodiment, the unit of control device 3 is micro-window of band barrier structure, and wherein the attitude of barrier structure can adjust, thus controls the characteristic by micro-window of light.
As the preferred version of the present embodiment, described light supply apparatus 1 can be independently illuminating source, also can be the combination of illuminating source and optical module.
As the preferred version of the present embodiment, light projection device 2 and control device 3 have certain space length, and light projection device 2 clearly can be projected the image be positioned near control device 3 at a distance at vertical direction.
In the such scheme of the present embodiment, light projection device 2 all has a focus usually, when being positioned at this near focal point by missile body, light projection device 2 can project pattern comparatively clearly, nearer by projection object focal point, light projection device 2 just can project pattern more clearly, so in the scheme of the present embodiment, line grenade instrumentation and control device 3 have certain space length, make light projection device 2 project pattern clearly, meet the requirement of illumination.
As the preferred version of the present embodiment, described control device 3 is through mode liquid crystal array light valve.
In the such scheme of the present embodiment, adopt through mode liquid crystal array light valve as control device 3, the control of light transmission part shape can be realized easily, so, in use, certain printing opacity shape can be formed by control device 3; And then the adjustment reached headlamp lighting region; Again on the one hand, through mode liquid crystal array light valve can also adjust printing opacity degree, so, the headlamp of the present embodiment can also be made can to adjust illumination intensity, further add the controllability of the present embodiment headlamp, increase the scope of application of headlamp.
As the preferred version of the present embodiment, through mode liquid crystal array light valve is colored through mode liquid crystal array light valve, and the light color that grenade instrumentation is projected is controlled.
In the such scheme of the present embodiment, the light color that light projection device 2 projects is controlled, expands the scope of application of the present embodiment headlamp further.
As another preferred version of the present embodiment, described control device 3 is reflective digital array of micromirrors.
As another preferred version of the present embodiment, described control device 3 is micromechanical array structure.
Adopt micromechanical array structure as control device 3, it is simple, and reliable structure, reduction manufacturing cost that can be good, but also the reliability of headlamp can be improved.
When using the present embodiment headlamp; when requiring illumination and not throwing light on frequent exchange; switching light sources frequently can not to be needed as traditional headlamp; only need to adjust control device 3; so; can also light source be protected, increase the life-span of light source, further improve the reliability of headlamp.
All any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.

Claims (10)

1. the headlamp that a field of illumination is adjustable, it is characterized in that: include light supply apparatus, control device and light projection device, described control device is arranged between light supply apparatus and light projection device, control device is formed by multiple separate unit array combination, each unit can independently control light by characteristic, described light projection device projects described control device light out.
2. headlamp according to claim 1, is characterized in that: the unit of described control device by the mode controlling transmitance control light by characteristic, follow-up grenade instrumentation projects transmitted light.
3. headlamp according to claim 1, is characterized in that: the unit of described control device by the mode of reflection control light by characteristic, follow-up grenade instrumentation projects reverberation.
4. headlamp according to claim 1, it is characterized in that, the unit of control device is micro-window of band barrier structure, and wherein the attitude of barrier structure can adjust, thus control by micro-window light number, follow-up grenade instrumentation projects by light.
5. the headlamp according to claim 1-4 any one, is characterized in that: described light supply apparatus can be independently illuminating source, also can be the combination of illuminating source and optical module.
6. the headlamp according to claim 1-4 any one, it is characterized in that: light projection device and control device have certain space length, light projection device is clearly projected the image be positioned near control device at a distance at vertical direction.
7. headlamp according to claim 1, is characterized in that, described control device is through mode liquid crystal array light valve.
8. headlamp according to claim 1, is characterized in that, described control device is reflective digital array of micromirrors.
9. headlamp according to claim 1, is characterized in that, described control device is micromechanical array structure.
10. headlamp according to claim 7, is characterized in that, through mode liquid crystal array light valve is colored through mode liquid crystal array light valve, and the light color that grenade instrumentation is projected is controlled.
CN201510924805.XA 2015-12-14 2015-12-14 A kind of adjustable headlamp of illumination region Active CN105333377B (en)

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Application Number Priority Date Filing Date Title
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CN105333377B CN105333377B (en) 2019-02-26

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105570822A (en) * 2016-03-02 2016-05-11 成都恒坤光电科技有限公司 Light source capable of adjusting color temperature and light source module and headlamp adopting light source
CN105822975A (en) * 2016-05-20 2016-08-03 京东方科技集团股份有限公司 Lighting device and method
CN106016130A (en) * 2016-07-19 2016-10-12 开发晶照明(厦门)有限公司 Headlight device and vehicle
CN110131667A (en) * 2019-04-16 2019-08-16 上海文歆汽车科技有限公司 Automobile ADB liquid crystal headlight optical module

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CN103154601A (en) * 2010-11-24 2013-06-12 罗布照明有限公司 Improved beam control for an led luminaire
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CN2169567Y (en) * 1993-09-25 1994-06-22 龙口市复兴机械制造厂 Automatic sunshade and anti-glare board for motor vehicles
CN1383010A (en) * 2002-05-23 2002-12-04 上海交通大学 Optical 4X4 array switch in free space
CN101000129A (en) * 2006-01-10 2007-07-18 陈国平 Method and device for changing state of scattering or transmission of low energy lamp
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105570822A (en) * 2016-03-02 2016-05-11 成都恒坤光电科技有限公司 Light source capable of adjusting color temperature and light source module and headlamp adopting light source
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CN110131667A (en) * 2019-04-16 2019-08-16 上海文歆汽车科技有限公司 Automobile ADB liquid crystal headlight optical module

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