CN108375029A - Optical unit - Google Patents
Optical unit Download PDFInfo
- Publication number
- CN108375029A CN108375029A CN201710833077.0A CN201710833077A CN108375029A CN 108375029 A CN108375029 A CN 108375029A CN 201710833077 A CN201710833077 A CN 201710833077A CN 108375029 A CN108375029 A CN 108375029A
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- CN
- China
- Prior art keywords
- light
- light source
- optical unit
- rotating mirror
- reflected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
- F21S41/67—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors
- F21S41/675—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors by moving reflectors
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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
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
- F21S41/18—Combination of light sources of different types or shapes
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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
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
- F21S41/141—Light emitting diodes [LED]
- F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
- F21S41/148—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device the main emission direction of the LED being perpendicular to the optical axis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/20—Electroluminescent [EL] light sources
Abstract
The new optical unit that simple structure can be utilized to be irradiated wide scope is provided.Optical unit (40) has：1st light source (42)；2nd light source (48)；Rotating mirror (44) is on one side reflected the 1st light (L1) projected from the 1st light source (42), is rotated centered on rotary shaft on one side；And projecting lens (46), direction projection will be irradiated from the 1st light (L1) that rotating mirror reflects to the light of optical unit.2nd light source (48) is configured to, the 2nd light (L2) projected is incident without being reflected by rotating mirror (44) to projecting lens (46), and the 2nd light (L2) is irradiated direction projection by projecting lens (46) to the light of optical unit.
Description
Technical field
The present invention relates to optical unit, the optical unit that is particularly used in lamps apparatus for vehicle.
Background technology
In recent years, it is designed with following apparatus, that is, reflect light shot from the light source to vehicle front, by using the reflection
Light is scanned the region of vehicle front, to form defined light distribution patterns.For example, as it is known that a kind of optical unit (reference
Patent document 1), have：Rotating mirror on one side reflects light shot from the light source, in being with rotary shaft on one side
The heart is rotated to a direction；And the multiple light sources being made of light-emitting component, rotating mirror are provided with reflecting surface, so that one
The light for the light source that side rotation reflects on one side forms desired light distribution patterns, and multiple light sources are configured to, and the light respectively projected is anti-
The different location for penetrating face is reflected.
Patent document 1：Japanese Unexamined Patent Publication 2015-26628 bulletins
But if attempting to wide scope is scanned by the light that rotating mirror reflects, be easy to happen maximum
The reduction of luminosity, the deterioration of imaging.Therefore, in optical unit above-mentioned, in addition to for realizing positive to direction of travel
Except the optically focused LED unit of kicker light, it is additionally provided with for realizing the diffusion LED for the diffusion light being irradiated to wide scope
Unit.In addition, after the light that optically focused is sent out with LED unit is reflected in the 1st position of rotating mirror, it is saturating by the 1st projection
Mirror projects forwards, after the light sent out from diffusion with LED unit is reflected in the 2nd position of rotating mirror, by the 2nd projection
Lens project forwards.Therefore, it is necessary to multiple projecting lens, and there are unit entirety bigger tendencies.
Invention content
The present invention is exactly to propose in view of the foregoing, it is intended that providing can utilize simple structure to width
The new optical unit that range is irradiated.
In order to solve the above problems, a kind of optical unit of mode of the invention has：1st light source；2nd light source；Rotation
Speculum is on one side reflected the 1st light projected from the 1st light source, is rotated centered on rotary shaft on one side；And projection is saturating
Mirror will irradiate direction projection from the 1st light that rotating mirror reflects to the light of optical unit.2nd light source is configured to, injection
2nd light by rotating mirror to projecting lens incidence without being reflected, and projecting lens is by the 2nd light to the light direction of illumination of optical unit
Projection.
According to which, the 2nd light projected from the 2nd light source to projecting lens incidence without being reflected by rotating mirror, because
This, the case where need not capable of considering to be reflected by rotating mirror and optical characteristics is selected.Thus, for example, by using
Visual angle 2nd light source wider than the 1st light source, so as to be irradiated to wider range.
Can also be that the 2nd light source is configured in the front observation from vehicle front in the base equipped with the 1st light source
Between plate and rotating mirror.Thereby, it is possible to configure the 2nd light source without the width of optical unit broadens.
Can also be that projecting lens is configured to, the 1st incident light after being reflected by rotating mirror, to optical unit
Light irradiate direction projection and as optically focused light distribution patterns, by incidence rather than by rotating mirror reflect the 2nd light, to optics list
Member light irradiation direction projection and as diffusion light distribution patterns.It hardly reduces and matches thereby, it is possible to be irradiated to wide scope
The luminosity of light pattern.
The another way of the present invention is also optical unit.The optical unit has：1st light source；Rotating mirror, one side
The 1st light projected from the 1st light source is reflected, is rotated centered on rotary shaft on one side；Projecting lens, will be by rotary reflection
1st light of mirror reflection irradiates direction projection to the light of optical unit；2nd light source, configuration the 1st light source and projecting lens it
Between；And optical component, make the optical path change of the 2nd light projected from the 2nd light source and towards projecting lens.2nd light source configures
For, injection the 2nd light to projecting lens incidence without being reflected by rotating mirror.
According to which, the 2nd light projected from the 2nd light source to projecting lens incidence without being reflected by rotating mirror, because
This, the case where can be selected optical characteristics without considering to be reflected by rotating mirror.Thus, for example, by using
Visual angle 2nd light source wider than the 1st light source, so as to be irradiated to wider range.In addition, making by using optical component
The optical path change of 2 light and towards projecting lens, so as to be adjusted to the position for configuring the 2nd light source, make composition optics list
The degree of freedom of the design of the component of member increases.
Can also be that projecting lens is configured to, by incident the 1st light after being reflected by rotating mirror, to optical unit
Light irradiation direction projection and as optically focused light distribution patterns, will not be reflected and the 2nd light of incidence by rotating mirror, to optics list
Member light irradiation direction projection and as diffusion light distribution patterns.It hardly reduces and matches thereby, it is possible to be irradiated to wide scope
The luminosity of light pattern.
Can also be that the 2nd light source has a plurality of light-emitting elements configured with array-like.Thereby, it is possible to make range of exposures rank
Change to ladder.
The another way of the present invention is also optical unit.The optical unit has：1st light source；Rotating mirror, one side
The 1st light projected from the 1st light source is reflected, is rotated centered on rotary shaft on one side；Projecting lens, will be by rotary reflection
1st light of mirror reflection irradiates direction projection to the light of optical unit；2nd light source, configuration the 1st light source and projecting lens it
Between；And optical component, the 2nd light projected from the 2nd light source is reflected and towards projecting lens.2nd light source is configured to,
The 2nd light projected is to projecting lens incidence without being reflected by rotating mirror.
According to which, the 2nd light projected from the 2nd light source to projecting lens incidence without being reflected by rotating mirror, because
This, the case where can be selected optical characteristics without considering to be reflected by rotating mirror.Thus, for example, by using
Visual angle 2nd light source wider than the 1st light source, so as to be irradiated to wider range.
The another way of the present invention is also optical unit.The optical unit has：Light source；And rotating mirror, one
While reflecting the light projected from the light source, rotated centered on rotary shaft on one side.Rotating mirror is provided with reflecting surface,
So that being scanned to front by the light by being reflected while rotating, to form defined light distribution patterns, light source
Have：1st illumination region projects the 1st light being scanned to the 1st region comprising maximum luminosity region in light distribution patterns；
And the 2nd illumination region, project the 2nd light that pair 2nd region adjacent with the 1st region is scanned.If by the 1st illumination region
The summation of the length of length direction is set as L1, by the length of the 2nd illumination region in the direction parallel with the length direction of the 1st illumination region
Summation be set as L2, then meet L1 ＞ L2.
According to which, other than the 1st illumination region being scanned to the 1st region comprising maximum luminosity region, also
With the 2nd illumination region that pair 2nd region adjacent with the 1st region is scanned, therefore, it is possible to meet the same of maximum luminosity
When, realize the irradiation of wider range.
If the quantity for the light-emitting component for constituting the 1st illumination region is set as N1, the light-emitting component of the 2nd illumination region will be constituted
Quantity is set as N2, then meets N1 ＞ N2.The 2nd region not comprising maximum luminosity region is scanned in injection as a result, the 2nd
In 2nd illumination region of light, the quantity of light-emitting component can be inhibited.
The area of 2nd illumination region is smaller than the area of the 1st illumination region.As a result, for example, can inhibit compared with the 1st illumination region
Constitute the quantity of the light-emitting component of the 2nd illumination region.
Can also be that the 2nd illumination region has the multiple light-emitting zones being disposed separately across non-luminous region.As a result,
Wide scope can be irradiated without the 2nd illumination region becomes larger.
Can also be that multiple light-emitting zones are set as, it is adjacent with the both ends difference of the length direction of the 1st illumination region.By
This, can utilize the 2nd illumination region pair and the region of the 1st illumination region same widths to be irradiated.
The effect of invention
In accordance with the invention it is possible to realize the new optical unit that can be irradiated to wide scope using simple structure.
Description of the drawings
Fig. 1 is the horizontal sectional drawing of headlight for automobile.
Fig. 2 is the vertical view for the structure for showing schematically the optical unit involved by reference example.
Fig. 3 is the side view of the optical unit involved by reference example.
Fig. 4 is the schematic diagram of the optical unit involved by the 1st embodiment viewed from above.
Fig. 5 is the schematic diagram of the optical unit shown in Fig. 4 from side.
Fig. 6 is the schematic diagram for being observed from the front optical unit shown in Fig. 4.
Fig. 7 (a) is the schematic diagram for amplifying the mian part of the 1st light source involved by present embodiment, and Fig. 7 (b) is by this reality
Apply the schematic diagram of the mian part amplification of the light emitting module involved by mode.
Fig. 8 is to show schematically to be formed by the headlight for automobile with the optical unit involved by the 1st embodiment
The figure of light distribution patterns.
Fig. 9 is the schematic diagram of the optical unit involved by the 2nd embodiment viewed from above.
Figure 10 is the schematic diagram of the optical unit shown in Fig. 9 from side.
Figure 11 is the schematic diagram for being observed from the front optical unit shown in Fig. 9.
Figure 12 is the schematic diagram of the optical unit involved by the 3rd embodiment viewed from above.
Figure 13 is the schematic diagram of the optical unit shown in the side observation chart 12.
Figure 14 is the schematic diagram for being observed from the front optical unit shown in Figure 12.
Figure 15 is the horizontal sectional drawing of the headlight for automobile involved by the 4th embodiment.
Figure 16 is the front view of the headlight for automobile involved by the 4th embodiment.
Figure 17 is the vertical view of the 1st light source involved by present embodiment.
Figure 18 is the figure of the position relationship for the multiple light emitting modules for being schematically illustrated at the carrying of the 1st light source.
Figure 19 be indicate in the state of by the 1st light source whole lighting using the rotating mirror in static to light source picture into
Row reflection, the figure of the pattern P projected forwards.
Figure 20 is to show schematically to be formed by the headlight for automobile with the optical unit involved by the 4th embodiment
The figure of light distribution patterns.
Figure 21 (a)~Figure 21 (c) is the distance light light distribution figure for indicating to realize by the 1st light source involved by present embodiment
The figure of the variation of case.
The explanation of label
The 1st light of L1, the 2nd light of L2,10 headlight for automobile, 20 lamp units, 26 rotating mirrors, 40 optical units, 42
1st light source, 44 rotating mirrors, 46 projecting lens, 48 the 2nd light sources, 50 interior lens, 52 radiators, 53,54 light emitting modules, 55
Circuit board, 57LED, 60 optical units, 62 radiators, 66 stationary mirrors, 80 optical units.
Specific implementation mode
In the following, being based on embodiment, with reference to attached drawing, the present invention will be described.For each shown in the drawings same or wait
Structural element together, component, processing, mark same label, and appropriate the repetitive description thereof will be omitted.In addition, embodiment is not limit
Fixed invention, but illustrate, all features and combinations thereof described in embodiment, however it is not limited to must be the essence of the present invention
Content.
The optical unit of the present invention can use in various lamps apparatus for vehicle.First, it is described below to that can carry
The outline of the headlight for automobile of optical unit involved by each embodiment illustrates.
[headlight for automobile]
Fig. 1 is the horizontal sectional drawing of headlight for automobile.Fig. 2 is the optical unit showed schematically involved by reference example
The vertical view of structure.Fig. 3 is the side view of the optical unit involved by reference example.
Headlight for automobile 10 shown in FIG. 1 is the right side headlamp carried on the right side of the front end of automobile, and on a left side
The headlamp that side is carried is symmetrical, is in addition to this identical construction.Therefore, in the following, headlight for automobile 10 to right side
It is described in detail, the headlight for automobile in left side is omitted the description.
As shown in Figure 1, there is headlight for automobile 10 lamp body 12, the lamp body 12 to have the recess portion towards front openings.Lamp
The front surface opening of body 12 is covered by transparent front surface cover 14 and forms lamp house 16.Lamp house 16 as by 2 lamp units 18,
It works in 20 spaces accommodated with the state for arranging, configuring along vehicle width direction.
Being configured on shown in FIG. 1 in outside, i.e. in the headlight for automobile on right side 10 in these lamp units
The lamp unit 20 of side is the lamp unit for having lens, is configured to irradiate variable distance light.On the other hand, in these lamp units
Be configured to shine in inside, the lamp unit 18 for being configured at downside shown in FIG. 1 in the headlight for automobile on right side 10
Penetrate dipped beam.
The lamp unit 18 of dipped beam have speculum 22, be supported in speculum 22 light source bulb (incandescent lamp bulb) 24,
And hood (not shown), 22 not shown known units of speculum, for example using the unit of calibration screw and nut with
It can be supported with freely lifting relative to lamp body 12.
Lamp unit 20 is the optical unit for having components described below, i.e.,：Rotating mirror 26；LED 28；And as throwing
The convex lens 30 of shadow lens configures in the front of rotating mirror 26.In addition it is also possible to replace LED 28 and use EL members
The semiconductor light-emitting elements such as part, LD elements are as light source.Particularly, the part for the light distribution patterns to describing below into
In the control of row shading, it is preferably able to the short time and is accurately proceed the light source of lighting/light-off.As long as the shape of convex lens 30
It is correspondingly suitably selected with light distribution characteristics such as desired light distribution patterns, Illumination Distributions, uses non-spherical lens, freely bent
Face lens.
Rotating mirror 26 is revolved centered on rotary shaft R to a direction by driving sources such as motor (not shown)
Turn.In addition, there is rotating mirror 26 reflecting surface, the reflecting surface to be configured to, the light projected from LED 28 is directed at while rotating
It is reflected, forms desired light distribution patterns.
Rotating mirror 26 is provided with that working as reflecting surface, shape is identical around the rotating part 26b of tubular
2 reflector plate 26a.The rotary shaft R of rotating mirror 26 is tilted relative to optical axis Ax, and setting is including optical axis Ax and LED 28
Plane in.In other words, rotary shaft R is set as, the light (irradiation light with the LED 28 scanned in left and right directions by rotation
Beam) the plane of scanning motion it is substantially parallel.Hereby it is achieved that the slimming of optical unit.Herein, the so-called plane of scanning motion, such as can
It is set as, the fan-shaped plane formed by being continuously connected the track for scanning the light of light, that is, LED 28.In addition, in this implementation
In lamp unit 20 involved by mode, possessed LED 28 is smaller, and the position configured with LED 28 is also rotary reflection
Between mirror 26 and convex lens 30, deviated from optical axis Ax.Therefore, with as the lamp unit of existing mode of delivery, it is light source, anti-
It penetrates mirror to compare the case where being arranged as a row on optical axis with lens, the depth direction (vehicle of headlight for automobile 10 can be shortened
Front-rear direction).
In addition, the shape of the reflector plate 26a of rotating mirror 26 is configured to, by 2 light for reflecting the LED 28 realized
Source is formed in the near focal point of convex lens 30.In addition, reflector plate 26a has following shapes reversed, so that with
Angle variation formed by circumferential direction of the direction centered on rotary shaft R, optical axis Ax and reflecting surface.It as a result, as shown in figure 3, can be real
The scanning for now using the light of LED 28 to carry out.
(the 1st embodiment)
In the scanning optics using rotating mirror 26, if expanding diffusion (scanning) range, it may occur
The reduction of maximum luminosity, deterioration of imaging etc..Therefore, the scanning range of actual use be relative to optical axis (central shaft) ±
10 ° or so.Above-mentioned lamp unit 20 forms distance light light distribution patterns using 1 light source and is therefore deposited when expanding scanning range
In the limit.Therefore, in the optical unit involved by each embodiment below, in order to expand the photograph of distance light light distribution patterns
It penetrates, is provided with multiple light sources.
Fig. 4 is the schematic diagram of the optical unit 40 involved by the 1st embodiment viewed from above.Fig. 5 is from side
The schematic diagram of optical unit 40 shown in Fig. 4.Fig. 6 is the schematic diagram for being observed from the front optical unit 40 shown in Fig. 4.
Optical unit 40 involved by present embodiment has：1st light source 42；Rotating mirror 44, on one side to from the 1st
The 1st smooth L1 that light source 42 projects is reflected, and is rotated centered on rotary shaft R on one side；Projecting lens 46, will be by rotary reflection
The 1st smooth L1 that mirror 44 reflects is projected to the light direction of illumination (Fig. 4 right direction) of optical unit；2nd light source 48 is configured the 1st
Between light source 42 and projecting lens 46；As the interior len 50 of optical component, make the 2nd smooth L2's projected from the 2nd light source 48
Optical path change and towards projecting lens 46；And radiator 52, the 1st light source 42 and the 2nd light source 48 are carried.
Multiple light emitting modules of 1st light source 42 are configured to array-like.Specifically, 8 light emitting modules 54 are configured to 3 layers,
There are 4 light emitting modules 54 in upper-layer configured, be configured with 2 light emitting modules 54 in middle level, 2 light emitting modules are configured in lower layer
54.2 light emitting modules 54 in middle level are configured to the lower section phase of the light emitting module 54 at the both ends in 4 light emitting modules 54 with upper layer
Neighbour, 2 light emitting modules 54 of lower layer are configured to adjacent with the lower section of 2 light emitting modules 54 in middle level.
Fig. 7 (a) is the schematic diagram for amplifying the mian part of the 1st light source involved by present embodiment, and Fig. 7 (b) is by this reality
Apply the schematic diagram of the mian part amplification of the light emitting module involved by mode.
As shown in Fig. 7 (a), small reflector 56, the small reflector 56 are configured in the sides light-emitting surface 54a of each light emitting module 54
Opening 56a corresponding with each light-emitting surface 54a be formed as clathrate.The light projected as a result, from light emitting module 54 hardly dissipates
And reach the reflecting surface of rotating mirror 44.
Light emitting module 54 such as shown in Fig. 7 (b), has：The LED 57 of rectangle, is equipped on circuit board 55；Light wave
Long transform component 58 is equipped on the light-emitting surface of LED 57；And framework 59, it is set as LED 57 and optical wavelength
The periphery of transform component 58 surrounds.LED 57 is, for example, the semiconductor light-emitting elements for sending out blue light.Optical wavelength conversion member 58
It e.g. sends out the YAG ceramics of sodium yellow or YAG powder is made to be dispersed to component made of resin.Framework 59 is to make the powder of white
The white resin of dispersion reflects the light projected from the side of LED 57, optical wavelength conversion member 58.
2nd light source 48 is configured to array-like arrange 2 light emitting modules 53 in the horizontal direction, and each light emitting module 53 is constituted
For being capable of independently lighting/light-off.The concrete structure of light emitting module 53 is identical as light emitting module 54.
The 2nd light source 48 involved by present embodiment is configured to, and the 2nd smooth L2 is incident to projecting lens 46 and is not rotated anti-
Penetrate the reflection of mirror 44.Thereby, it is possible to need not consider the case where the 2nd smooth L2 projected from the 2nd light source 48 is reflected by rotating mirror 44
And select optical characteristics.Therefore, by using such as visual angle 2nd light source 48 wider than the 1st light source 42, so as to broader
Range is irradiated.Herein, so-called visual angle is that the position of the half luminous intensity to be become to peak value is set as the light at both ends
The index that shooting angle indicates.
In addition, making the optical path change of the 2nd smooth L2 by using interior len 50 and towards rotating mirror 44, so as to right
The position for configuring the 2nd light source 48 is adjusted.For example, in optical unit 40 involved by present embodiment, assuming that not having
In the case of interior len 50, the position of the 2nd light source 48 matched with projecting lens 46 becomes the rear of radiator 52, and design becomes
It obtains difficult.But by the way that the component of the optical path change of light will be made to configure in the 2nd light source 48 and projecting lens as interior len 50
Between 46, to which the 2nd smooth L2 projected from the 2nd light source 48 is seemed as reaching projecting lens 46 from the rear of radiator 52,
Therefore, increased for the degree of freedom of the design of the component for being constituted optical unit 40 of representative with the 2nd light source 48.
Fig. 8 is to show schematically to be formed by the headlight for automobile with the optical unit involved by the 1st embodiment
The figure of light distribution patterns.Distance light shown in Fig. 8 is to close optically focused light distribution patterns PH1 and diffusion light distribution patterns PH2 with light distribution patterns PH
Obtained from.Optically focused light distribution patterns PH1 is to reflect the 1st incident smooth L1 works of rear orientation projection's lens 46 by rotating mirror 44
It is projected as X for the light source of the 1st light source 42, is scanned and is formed in the horizontal direction.On the other hand, light distribution patterns are spread
PH2 is to the incident light direction of illumination without the 2nd smooth L2 that is reflected by rotating mirror 44 to optical unit 40 of projecting lens 46
Projection and formed.PH2 pairs of light distribution patterns region on more right side compared with the right part of optically focused light distribution patterns PH1 is spread to shine
It penetrates.Maximum luminosity of the distance light with light distribution patterns PH is hardly reduced as a result, wider range can be carried out using simple structure
Irradiation.
In addition, the 2nd light source 48 has the multiple light emitting modules 53 configured with array-like, it is configured to independently to each hair
Optical module 53 is dimmed.Thereby, it is possible to steps range of exposures is expanded.
(the 2nd embodiment)
Fig. 9 is the schematic diagram of the optical unit 60 involved by the 2nd embodiment viewed from above.Figure 10 is from side
The schematic diagram of optical unit 60 shown in Fig. 9.Figure 11 is the schematic diagram for being observed from the front optical unit 60 shown in Fig. 9.In addition,
For structure identical with the optical unit involved by the 1st embodiment, identical label is marked, is suitably omitted the description.
Optical unit 60 involved by 2nd embodiment has：1st light source 42；2nd light source 48；Rotating mirror 44,
The 1st smooth L1 projected from the 1st light source 42 is reflected on one side, is rotated centered on rotary shaft R on one side；Projecting lens 46,
Direction projection will be irradiated from the 1st smooth L1 that rotating mirror 44 reflects to the light of optical unit 60；And radiator 62, to
1 light source 42 and the 2nd light source 48 are carried.2nd light source 48 is configured to, and the 2nd smooth L2 of injection is directly incident to projecting lens 46
Without being reflected by rotating mirror 44, the 2nd smooth L2 is irradiated direction projection by projecting lens 46 to the light of optical unit 60.
It is selected thereby, it is possible to consider the case where the 2nd smooth L2 projected from the 2nd light source 48 is reflected by rotating mirror 44
Select optical characteristics.Therefore, by using visual angle 2nd light source 48 wider than the 1st light source 42, so as to utilize simple structure pair
Wider range is irradiated.
2nd light source 48 is configured in the front observation from vehicle front shown in Figure 11 equipped with the 1st light source 42
Circuit board 55 and rotating mirror 44 between.Thereby, it is possible to configure width of the 2nd light source 48 without expanding optical unit 60
Degree.In addition, the optical unit 60 involved by present embodiment is identically as the optical unit 40 involved by the 1st embodiment, energy
Enough form distance light light distribution patterns PH shown in Fig. 8.
(the 3rd embodiment)
Figure 12 is the schematic diagram of the optical unit 80 involved by the 3rd embodiment viewed from above.Figure 13 is seen from side
Examine the schematic diagram of optical unit 80 shown in Figure 12.Figure 14 is the schematic diagram for being observed from the front optical unit 80 shown in Figure 12.
In addition, for structure identical with the optical unit involved by the 1st embodiment and the 2nd embodiment, identical mark is marked
Number, suitably omit the description.
Optical unit 80 involved by 3rd embodiment has：1st light source 42；Rotating mirror 44, on one side to from
The 1st smooth L1 that 1 light source 42 projects is reflected, and is rotated centered on rotary shaft on one side；Projecting lens 46, will be by rotary reflection
The 1st smooth L1 that mirror 44 reflects irradiates direction projection to the light of optical unit 80；2nd light source 48, configuration is in the 1st light source 42 and throws
Between shadow lens 46；And the stationary mirror 66 as optical component, the 2nd smooth L2 projected from the 2nd light source 48 is carried out
Reflection and towards projecting lens 46.2nd light source 48 is configured to, and the 2nd smooth L2 of injection is incident to projecting lens 46 and is not rotated
Speculum 44 reflects.
It is selected thereby, it is possible to consider the case where the 2nd smooth L2 projected from the 2nd light source 48 is reflected by rotating mirror 44
Select optical characteristics.Therefore, by using visual angle 2nd light source 48 wider than the 1st light source 42, so as to utilize simple structure pair
Wider range is irradiated.
(the 4th embodiment)
Figure 15 is the horizontal sectional drawing of the headlight for automobile involved by the 4th embodiment.Figure 16 is the 4th embodiment institute
The front view for the headlight for automobile being related to.In addition, in figure 16, the component of a part is omitted.
Headlight for automobile 100 involved by 4th embodiment is before the left side that the left side of the front end of automobile is carried
Illuminator, it is symmetrical with the headlamp that is carried on right side, it is in addition to this identical construction.Therefore, in the following, vehicle to left side
It is described in detail with headlamp 100, the headlight for automobile on right side is omitted the description.In addition, for the 1st embodiment~
The structure that optical unit involved by 3rd embodiment repeats, also suitably omits the description.
As shown in figure 15, there is headlight for automobile 100 lamp body 112, the lamp body 112 to have towards the recessed of front openings
Portion.The front surface opening of lamp body 112 is covered by transparent front surface cover 114 and forms lamp house 116.Lamp house 116 is as receiving 1
It works in the space of optical unit 118.Optical unit 118 is configured to, and can irradiate both variable distance light and dipped beam.It is so-called can
Become distance light, the distance light controlled in a manner of the change in shape for referring to the light distribution patterns to make distance light, for example, can be in light distribution
A part for pattern generates non-irradiated region (light shielding part).
Optical unit 118 involved by present embodiment has：1st light source 142；As 1 optical system (optical section
Part) optically focused lens 143, make the optical path change of the 1st smooth L1 projected from the 1st light source 142 and towards rotating mirror 126
Reflector plate 126a；Rotating mirror 126, on one side L1 smooth to the 1st reflect, rotated centered on rotary shaft R on one side；Make
It, will be from the 1st smooth L1 that rotating mirror 126 reflects to the light direction of illumination of optical unit for the convex lens 130 of projecting lens
(Figure 15 left direction) projects；2nd light source 148 configures between the 1st light source 142 and convex lens 130；As 1 optical system
The diffusion of (optical component) lens 150 make the optical path change of the 2nd smooth L2 projected from the 2nd light source 148 and towards convex lens
130；And radiator 152, the 1st light source 142 and the 2nd light source 148 are carried.
Rotating mirror 126 is the identical structure of the rotating mirror 26 described with front, rotating mirror 44, is provided with
As the reflector plate 126a of reflecting surface, so that being scanned to front by the light by being reflected while rotating, to shape
At defined light distribution patterns.As each light source, the semiconductor light-emitting elements such as LED, EL element, LD elements are used.Convex lens 130
As long as shape is correspondingly suitably selected with light distribution characteristics such as desired light distribution patterns, Illumination Distributions, but can also be used
Non-spherical lens, free-form surface lens.
For example, the convex lens 130 involved by present embodiment passes through the configuration progress to each light source, rotating mirror 126
Improvement, so as to form the notch 130a for cutting a part for periphery along vertical direction.Therefore, it is possible to inhibit optics list
The size of the vehicle width direction of member 118.In addition, since there are notch 130a, so the reflector plate 126a of rotating mirror 126 is not
It is easily interfered with convex lens 130, convex lens 130 and rotating mirror 126 can be made close.In addition, observing from the front vehicle
In the case of with headlamp 100, due to being formed with the part of non-circular (straight line) in the periphery of convex lens 130, so can
Realizing from the front of vehicle has the headlight for automobile of the new appearance of the lens of the shape of curve and Straight Combination.
Figure 17 is the vertical view of the 1st light source 142 involved by present embodiment.Figure 18 is to be schematically illustrated at the 1st light source
The figure of the position relationship of the 142 multiple light emitting modules carried.
Multiple light emitting modules 154 of the 1st light source 142 involved by present embodiment are configured with array-like.Specifically, such as
Shown in Figure 17, in circuit board 144,9 light emitting modules 154 (154a~154i) are configured to 3 layers, have 5 in upper-layer configured
Light emitting module 154c~154g is configured with 2 light emitting modules 154b, 154h in middle level, and 2 light emitting modules are configured in lower layer
154a、154i.2 light emitting modules 154b, the 154h in middle level are configured to, and in 5 light emitting module 154c~154h on upper layer
The lower section of light emitting module 154c, the 154g at both ends are adjacent, and 2 light emitting modules 154a, 154i of lower layer are configured to, and 2 with middle level
The lower section of a light emitting module 154b, 154h are adjacent.Each light emitting module 154a~154i is configured to independently lighting/light-off.
In addition, the concrete structure of light emitting module 154 is identical as light emitting module 54 above-mentioned.
As shown in Figure 15, Figure 16, the luminous surface side of each light emitting module 154 possessed by the 1st light source 142, configured with by
The optically focused lens 143 that multiple interior lens corresponding with each light-emitting surface are constituted.The light projected as a result, from light emitting module 54 is hardly
Dissipate and reach the reflecting surface of rotating mirror 126.
2nd light source 148 is configured to, and 2 light emitting modules 153 are arranged in the horizontal direction with array-like, 153 structure of each light emitting module
As being capable of independently lighting/light-off.The concrete structure of light emitting module 153 is identical as light emitting module 54.
The 2nd light source 148 involved by present embodiment is configured to, and the 2nd smooth L2 is incident to convex lens 130 and is not rotated anti-
Penetrate the reflection of mirror 126.The feelings reflected by rotating mirror 126 thereby, it is possible to consider the 2nd smooth L2 projected from the 2nd light source 148
Condition and select optical characteristics.Thus, for example, the light projected from the 2nd light source 148 is made to be diffused using diffusion lens 150
Backward convex lens 130 is incident, from can be irradiated to wider range, therefore, it is possible to by the 2nd light source 148 as dipped beam with matching
The light source of light pattern uses.
Figure 19 is indicated in the state of lightings that the 1st light source 142 is whole using the rotating mirror 126 in static to light
Source image is reflected, the figure of the pattern P projected forwards.Figure 20 is showed schematically by with involved by the 4th embodiment
The figure for the light distribution patterns that the headlight for automobile 100 of optical unit is formed.
Light distribution patterns shown in Figure 20 are to be synthesized into distance light with light distribution patterns PL with light distribution patterns PH and dipped beam.
In addition, distance light is the pattern generated after being scanned to pattern P shown in Figure 19 with light distribution patterns PH.
As shown in figure 19, by light source corresponding with each light-emitting surface of light emitting module 154a~154i as 155a~155i is formed
Concave pattern P.In addition, by making light source be scanned respectively as 155a~155i, to form scan pattern Pa~Pi, lead to
Crossing makes each scan pattern Pa~Pi be overlapped, to form distance light light distribution patterns PH.In addition, light emitting module 154a and light emitting module
The interval of 154i is set as, at least part overlapping of scan pattern Pa and scan pattern Pi.In the same manner, light emitting module 154b and
The interval of light emitting module 154h is defined as, at least part overlapping of scan pattern Pb and scan pattern Ph.
In addition, the light for projecting from the light emitting module 153 of the 2nd light source 148 and being spread by diffusion lens 150, through convex lens
Mirror 130 and the region of the downside of H-H lines and the right side of V-V lines is irradiated with light distribution patterns PL as dipped beam.In addition, sharp
This point is irradiated to the region of the downside entirety of H-H lines with pair of right and left headlight for automobile 100, needless to say.As above
Shown in stating, the optical unit 118 involved by present embodiment can use common convex lens 130 will be from the 1st light source 142 and the
The light that 2 light sources 148 project projects forwards, therefore, it is possible to be irradiated to wide scope using simple structure.
The 1st light source 142 involved by present embodiment has：As light emitting module 154c~154g of the 1st illumination region,
Project the light being scanned with the 1st region R1 comprising maximum luminosity region Rmax in light distribution patterns PH to distance light；As the 2nd
Light emitting module 154b, 154h of illumination region project the light that couple 2nd region R2 adjacent with the 1st region R1 is scanned；And
As light emitting module 154a, 154i of the 3rd illumination region, project what couple 3rd region R3 adjacent with the 2nd region R2 was scanned
Light.Distance light involved by present embodiment is that H-H lines and V-V lines intersect with the maximum luminosity region Rmax of light distribution patterns PH
Point near region.
In addition, for the 1st light source 142 involved by present embodiment, as shown in figure 18, if by light emitting module 154c~
The summation of the length of the length direction of 154g entirety is set as L1, will be parallel with the length direction of light emitting module 154c~154g entirety
The summation of length of light emitting module 154b, 154h in direction be set as L2 (L2 '+L2 "), then meet L1 ＞ L2.
Optical unit 118 is in addition to the light emitting module that is scanned to the 1st region R1 comprising maximum luminosity region as a result,
Except 154c~154g, light emitting module 154b, the 154h being also scanned with couple 2nd region R2 adjacent with the 1st region R1,
Therefore, it is possible to while meeting maximum luminosity, realize the irradiation of wider range.
In addition, for the 1st light source 142 involved by present embodiment, if by the 1st area to including maximum luminosity region
The quantity for the light emitting module 154 that domain R1 is scanned is set as N1 (N1=5), the light emitting module that will be scanned to the 2nd region R2
154 quantity is set as N2 (N2=2), then meets N1 ＞ N2.Thereby, it is possible to inhibit to project to not including maximum luminosity region Rmax
The quantity of the light emitting module 154 of light that is scanned of the 2nd region R2.
In addition, as shown in Figure 17, Figure 18, the area of the 2nd illumination region (light emitting module 154b, 154h) is than the 1st illumination region (hair
Optical module 154c~154g) area it is small.As a result, for example, the hair of the 2nd illumination region of composition can be inhibited compared with the 1st illumination region
The quantity of optical module 154.
In addition, as shown in figure 18, light emitting module 154b, 154h are disposed separately multiple across non-luminous region R4
Light-emitting zone.As a result, as shown in figure 20, do not increase light emitting module 154b, 154h, and merely with 2 scan patterns Pb, Ph, just
The 2nd region R2 for capableing of pair wide scope same as the 1st region R1 is irradiated.
The light emitting module of light emitting module 154b, 154h and the both ends of the length direction positioned at light emitting module 154c~154g
154c, 154g are disposed adjacently respectively.Thereby, it is possible to utilize light emitting module 154b, 154h pairs and light emitting module 154c~154g
The region of the region same widths of irradiation is irradiated.
Figure 21 (a)~Figure 21 (c) is to indicate the distance light realized by the 1st light source 142 involved by present embodiment with matching
The figure of the variation of light pattern.
Distance light shown in Figure 21 (a) is that a part of the 3rd region R3 is set as lightproof area (non-photograph with light distribution patterns PH1 '
Penetrate region) pattern.Therefore, by light emitting module 154a, 154i in defined light turning off timing.
Distance light shown in Figure 21 (b) is to be set as a part of the 1st region R1 and the 2nd region R2 with light distribution patterns PH2 '
The pattern of lightproof area (non-irradiated region).Therefore, by light emitting module 154b~154h in defined light turning off timing.
Distance light shown in Figure 21 (c) is that a part of the 1st region R1 is set as lightproof area (non-photograph with light distribution patterns PH3 '
Penetrate region) pattern.Therefore, by light emitting module 154c~154g in defined light turning off timing.
As noted above, the optical unit 118 involved by present embodiment, in order to improve the central portion of the 1st region R1
Maximum luminosity, and multiple light emitting modules are configured along the 1st direction, so that light source picture is arranged along scanning direction (horizontal direction),
In order to expand the range of exposures in the direction to intersect with scanning direction, also configures and shine in the 2nd direction to intersect with the 1st direction
Module.
More than, with reference to above-mentioned each embodiment, the present invention is described, but the present invention is not limited to above-mentioned each
Embodiment, to the structure of each embodiment carry out it is appropriately combined obtained from technical solution or into technology obtained from line replacement
Scheme is also included in the present invention.Alternatively, it is also possible to the knowledge based on those skilled in the art by each embodiment combination,
The sequence of processing carries out suitably recombination or applies the deformations such as various design alterations to each embodiment, is applied with this deformation
Embodiment may also be within the scope of the present invention.
Claims (12)
1. a kind of optical unit, which is characterized in that have：
1st light source；
2nd light source；
Rotating mirror is on one side reflected the 1st light projected from the 1st light source, is revolved centered on rotary shaft on one side
Turn；And
Projecting lens will irradiate direction projection from the 1st light that the rotating mirror reflects to the light of optical unit,
2nd light source is configured to, the 2nd light of injection to the projecting lens incidence without being reflected by the rotating mirror,
2nd light is irradiated direction projection by the projecting lens to the light of optical unit.
2. optical unit according to claim 1, which is characterized in that
2nd light source from vehicle front front observation when, configure equipped with the 1st light source substrate and institute
It states between rotating mirror.
3. optical unit according to claim 1 or 2, which is characterized in that
The projecting lens is configured to,
Incident the 1st light after being reflected by the rotating mirror irradiates direction projection and conduct to the light of optical unit
Optically focused light distribution patterns,
The 2nd light reflected by incidence rather than by the rotating mirror, to the light of optical unit irradiate direction projection and
As diffusion light distribution patterns.
4. a kind of optical unit, which is characterized in that have：
1st light source；
Rotating mirror is on one side reflected the 1st light projected from the 1st light source, is revolved centered on rotary shaft on one side
Turn；
Projecting lens will irradiate direction projection from the 1st light that the rotating mirror reflects to the light of optical unit；
2nd light source configures between the 1st light source and the projecting lens；And
Optical component, make the optical path change of the 2nd light projected from the 2nd light source and towards the projecting lens,
2nd light source is configured to, and the 2nd light of injection is to the projecting lens incidence without being reflected by the rotating mirror.
5. optical unit according to claim 4, which is characterized in that
The projecting lens is configured to,
Incident the 1st light after being reflected by the rotating mirror irradiates direction projection and conduct to the light of optical unit
Optically focused light distribution patterns,
The 2nd light reflected by incidence rather than by the rotating mirror, to the light of optical unit irradiate direction projection and
As diffusion light distribution patterns.
6. optical unit according to any one of claim 1 to 5, which is characterized in that
2nd light source has a plurality of light-emitting elements configured with array-like.
7. a kind of optical unit, which is characterized in that have：
1st light source；
Rotating mirror is on one side reflected the 1st light projected from the 1st light source, is revolved centered on rotary shaft on one side
Turn；
Projecting lens will irradiate direction projection from the 1st light that the rotating mirror reflects to the light of optical unit；
2nd light source configures between the 1st light source and the projecting lens；And
Optical component, the 2nd light projected from the 2nd light source is reflected and towards the projecting lens,
2nd light source is configured to, and the 2nd light of injection is to the projecting lens incidence without being reflected by the rotating mirror.
8. a kind of optical unit, which is characterized in that
Have：Light source；And rotating mirror, the light projected from the light source is reflected on one side, on one side with rotary shaft
Centered on rotate,
The rotating mirror is provided with reflecting surface, so that being swept to front by the light by being reflected while rotating
It retouches, to form defined light distribution patterns,
The light source has：1st illumination region is projected to the 1st region for including maximum luminosity region in the light distribution patterns
The 1st light being scanned；And the 2nd illumination region, project the pair 2nd region adjacent with the 1st region is scanned the 2nd
Light,
If the summation of the length of the length direction of the 1st illumination region is set as L1, by the length side with the 1st illumination region
It is set as L2 to the summation of the length of the 2nd illumination region in parallel direction, then meets L1 ＞ L2.
9. optical unit according to claim 8, which is characterized in that
If the quantity for the light-emitting component for constituting the 1st illumination region is set as N1, the luminous member of the 2nd illumination region will be constituted
The quantity of part is set as N2, then meets N1 ＞ N2.
10. optical unit according to claim 8 or claim 9, which is characterized in that
The area of 2nd illumination region is smaller than the area of the 1st illumination region.
11. the optical unit according to any one of claim 8 to 10, which is characterized in that
2nd illumination region has the multiple light-emitting zones being disposed separately across non-luminous region.
12. optical unit according to claim 11, which is characterized in that
The multiple light-emitting zone is set as, adjacent with the both ends difference of the length direction of the 1st illumination region.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016202551 | 2016-10-14 | ||
| JP2016-202551 | 2016-10-14 | ||
| JP2017001996A JP6951076B2 (en) | 2016-10-14 | 2017-01-10 | Optical unit |
| JP2017-001996 | 2017-01-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108375029A true CN108375029A (en) | 2018-08-07 |
| CN108375029B CN108375029B (en) | 2021-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710833077.0A Active CN108375029B (en) | 2016-10-14 | 2017-09-15 | Optical unit |
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| Country | Link |
|---|---|
| JP (1) | JP6951076B2 (en) |
| CN (1) | CN108375029B (en) |
| FR (1) | FR3065275B1 (en) |
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| CN110939918A (en) * | 2018-09-25 | 2020-03-31 | 株式会社小糸制作所 | Light irradiation device |
| CN111076136A (en) * | 2018-10-19 | 2020-04-28 | 株式会社小糸制作所 | Reflector assembly, lamp unit and vehicle lamp |
| CN111076138A (en) * | 2018-10-19 | 2020-04-28 | 株式会社小糸制作所 | Vehicle lamp and rotating reflector |
| CN112432137A (en) * | 2019-08-26 | 2021-03-02 | 株式会社小糸制作所 | Lens and lamp |
| CN112432128A (en) * | 2019-08-26 | 2021-03-02 | 株式会社小糸制作所 | Vehicle lamp |
| CN113286967A (en) * | 2018-12-25 | 2021-08-20 | 株式会社小糸制作所 | Optical unit |
| CN113790425A (en) * | 2018-09-25 | 2021-12-14 | 株式会社小糸制作所 | Light irradiation device |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP3869092A4 (en) | 2018-10-19 | 2021-12-15 | Koito Manufacturing Co., Ltd. | Rotating reflector manufacturing method and rotating reflector |
| WO2022210913A1 (en) * | 2021-03-30 | 2022-10-06 | 株式会社小糸製作所 | Lamp unit |
| WO2023095530A1 (en) * | 2021-11-24 | 2023-06-01 | 株式会社小糸製作所 | Optical unit |
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| CN102844616A (en) * | 2010-04-13 | 2012-12-26 | 株式会社小糸制作所 | Optical unit, vehicle monitor, and obstruction detector |
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| EP2525140A2 (en) * | 2011-05-19 | 2012-11-21 | Stanley Electric Co., Ltd. | Vehicle lighting unit |
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| CN110939918A (en) * | 2018-09-25 | 2020-03-31 | 株式会社小糸制作所 | Light irradiation device |
| CN113790425A (en) * | 2018-09-25 | 2021-12-14 | 株式会社小糸制作所 | Light irradiation device |
| CN110939918B (en) * | 2018-09-25 | 2022-05-10 | 株式会社小糸制作所 | Light irradiation device |
| CN111076136A (en) * | 2018-10-19 | 2020-04-28 | 株式会社小糸制作所 | Reflector assembly, lamp unit and vehicle lamp |
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| CN112432137A (en) * | 2019-08-26 | 2021-03-02 | 株式会社小糸制作所 | Lens and lamp |
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| CN112432137B (en) * | 2019-08-26 | 2022-11-15 | 株式会社小糸制作所 | Lens and lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| FR3065275B1 (en) | 2020-06-12 |
| JP2018067523A (en) | 2018-04-26 |
| JP6951076B2 (en) | 2021-10-20 |
| FR3065275A1 (en) | 2018-10-19 |
| CN108375029B (en) | 2021-03-09 |
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