CN101189473A - A headlamp providing long-distance illumination without glaring effect - Google Patents

Abstract

A headlamp, developed especially for motor vehicle illumination, wherein the light source and reflector surfaces are fully concealed from the oncoming traffic users, having a light plane with fully adjusted height, operating according to the half-lens illumination principle, providing a long-distance illumination without glaring effect by preventing the all of the light rays generated at the light source from reaching to the eye level (EE) of oncoming traffic users. The preferred embodiment of the system (40, 50) consists of three independent reflector units (2, 3), (12, 13), (22, 23) with triple light pathway, designed similar to clover leaf, having a standard light source (1) located at their common first focal point (fl) mounted in a headlamp enclosure (20). The system consists of a lighting assembly that can be used not only in motor vehicle headlamp system but also in general lighting systems and in all optical devices. The system may be applied as an in-bulb structure.

Description

Long-distance illumination and the headlight of free from glare effect

Motor vehicle illuminator of the present invention is included in the headlamp assembly to oncoming driver and pedestrian's glare effect that prevents when long-distance illumination is provided that the motor vehicle illuminator from causing.This system comprises light fixture, and this light fixture not only can be used in the motor vehicle headlamp, also can be used in general illumination and all optical assemblies.

Carried out many researchs with when good road lighting is provided under any weather and road conditions, avoided during nighttime driving glare effect oncoming driver and pedestrian.Some examples of the research in these past are as follows:

-about the research of typical projection-type front lamp of vehicle; U.S. Patent No. 1,614,027; 2,215,203; 6,007,223; 6,220,736 and 6,416,210.

-about the research of the front lamp of vehicle that uses removable reflector; U.S. Patent No. 5,077,642 and 6,543,916.

The research of-use antidazzle visor; U.S. Patent No. 5,077,648; 6,375,341; 6,386,744; 6,422,726; 6,428,195; 6,430,799; And French Patent (FRP) No.2808867.

-about according to the research of moving based on the principle of the indirect lighting of the principle of hiding light source and reflector surface; U.S. Patent No. 1,300,202; 1,683,896; 2,516,377; 4,089,047; 4,456,948; 4,480,291; 4,605,991; 4,620,269; 6,457,850; 5,414,601; French Patent (FRP) No.2668434; Japan Patent No.7-164500.

-be placed on the research of headlamp designs of the blockage structures as light shield, baffle plate and veil (cover glass) of light source, reflector and headlight front lens front about use; U.S. Patent No. 3,598,989; 5,077,649; 5,124,891; 6,109,772; 6,543,910; 6,558,026; 20030081424; BP No.446358; 2149077; And French Patent (FRP) No.2627845.

-based on the research of adjusting headlight brightness; U.S. Patent No. 4,802,067; 6,504,265; 6,513,958 and 6,572,248.

-use the multi-disc reflector surface and use the top and the bottom reflection wall as the research of reflecting surface; U.S. Patent No. 5,944,415.

-except above-mentioned, also can consider following prior art: U.S. Patent No. 1,814,669; 2,185,203; 6,152,589; 6,244,731; And European patent No.1213532; French Patent (FRP) No.539045;

Although some in the above-mentioned research provide good road lighting, they can not control glare effect fully, fully control dazzle of other research, but can not guarantee to carry out road lighting with the luminous intensity of abundance along required separation distance.

In above-mentioned research, be arranged in any barrier or the shade device of light path, be applied to any coating or coating on light source or the reflector surface, rete on reflector surface, front lens or the windshield, molecule and polarization can absorb a part of light, and reduce photometric measurement value and luminous intensity.

In the projection-type headlamp designs of often using now, thereby be placed on down or the light shield of upper reflector front partly can not provide abundant control to dazzle when the light that blocking part generated reduces luminous intensity.

In some prior aries based on the principle of oncoming traffic user fully being hidden light source and reflecting surface similar,, can not obtain enough luminous intensities in required distance although fully controlled glare effect to the present invention.The research to hiding fully light source of oncoming traffic user and reflecting surface can not obtain sufficient dazzle control.In the direct or indirect means of illumination that reflecting surface is hidden fully, because can not guarantee the light beam parallel with the road surface, so, can not obtain the illumination of enough luminous intensities in required distance being placed on the light shield on the light path or being undertaken by the baffle plate light shield under this situation about hiding by single or multiple.Light source and reflecting surface hidden fully and the flat reflecting surface of the upper parallel placement of use and front lamp cover or upper and lower reflector walls as flat reflecting surface, can not obtain the illumination of enough luminous intensities.

Except above-mentioned defective, the most important defective of already used current standard meeting light beam (dipped beam) is the road lighting that safe stopping distance can not be provided under the situation that does not produce glare effect.The purpose of this research provides a kind of Vehicular illumination system, is fully controlling glare effect during the nighttime driving in the road lighting of the luminous intensity that safe stopping distance continues to provide enough in this system.

Headlamp designs of the present invention comprises the Vehicular illumination system that oncoming traffic user is not produced glare effect based on the pellicle mirror lighting theory, in this system, only use the latter half (7a) of lens (7) to throw light on by the first half of using half baffle plate (6) to close lens (7), by form wherein light source and reflecting surface to sight line at horizontal plane (XX, X ' X ' and X " X ") on oncoming driver, the optical plane of the height that pedestrian and observer hide fully with abundant adjustment, horizontal plane (XX wherein, X ' X ' and X " X ") in fact pass and parallel with the road surface from the last level of headlight opening, the light beam that generates at light source is by custom-designed reflector or the most efficient focusing of reflecting surface.

The most preferred embodiment (40 of the headlamp assembly of design according to the present invention, 50) comprise three independent reflectors unit (2,3), (12,13), (22 that are designed to " clover " shape, 23), on first public focus (f1), has light source (1) and have the light path of oneself separately.

A purpose of headlight of the present invention is to use the light that is generated to throw light on effective and efficient manner, realizing the comparing illumination of higher photometering performance with traditional headlight, and be based upon the vehicles meeting beam lighting of fully controlling when remote adequate illumination is provided oncoming traffic user's glare effect.

Another object of the present invention is the good effect that obtains the combination of vehicle close to each other, and the vehicle that travels at equidirectional and relative vehicle are improved viewing distance and visual quality.

Another object of the present invention is to guarantee to allow to use with " watching mode in the daytime " during nighttime driving the headlamp designs of rearview mirror, thereby safer and more comfortable driving is provided.

At the analysis accompanying drawing and after, will more understand feature, operation principle, purpose and the advantage of headlamp assembly of the present invention (40,50) to its detailed description.

Fig. 1 illustrates the basic functional principle of Vehicular illumination system of the present invention.

Fig. 2 is the perspective view of the basic element of character that first preferred embodiment (40) of the system similar to clover is shown.

Fig. 3 is the side cross-sectional view of the embodiment (40) of Fig. 2.

Fig. 4 is the perspective view of the basic element of character of second preferred embodiment (50).

Fig. 5 is the side cross-sectional view of the embodiment (50) of Fig. 4.

Fig. 6,7 and 8 illustrates based on identical operation principle, and each unit of first preferred embodiment (40) is as the headlamp designs of the embodiment of the single reflector with arbitrary source.

Fig. 9,10 and 11 illustrates each unit in first preferred embodiment (50) as the headlamp designs of embodiment of the single reflector with arbitrary source, wherein reflector sections (2a, 2b, 2c) is down revised.

Figure 12 a, b, c, d, e are the schematic diagrames of the different application of preferred lens type (7,17,27,67).

Figure 13 a, b and c are side view (13a), perspective view (13b) and the front views (13c) of preferred baffle type.

Figure 13 d, e, f and g illustrate the different application of preferred embodiment (40,50), and (Figure 13 d illustrates the schematic diagram that is used in the reflection technology among the embodiment with baffle plate; Figure 13 e illustrates the have LED schematic diagram of application of system of (light emitting diode); Figure 13 f illustrates down the embodiment that reflector portion is divided into hemispherical (2a, 2b, 2c); Figure 13 g illustrates the detailed perspective view of described preferred hemisphere).

Figure 14 is a preferred custom-designed bulb type (60).

Pass the optical centre of lens shown in Figure 1 (7) and the horizontal plane (XX parallel with the road surface, X ' X ' and X " X ") expression be used for forward sight, down look and on the headlight opening (8 of the headlight unit looked, 18,28) last level, and the oncoming traffic user's of level (EE) expression eye-level display.Level (EE) is usually on the plane on (XX, X ' X ' and X " X ").(YY) be to pass the focus of headlight and the axle vertical with the road surface.Fig. 1 also shows surround and dark (no light beam) district.

Dark space shown in Figure 1 be in fact pass the last level of headlight opening (8,18,28) and on the plane zone on (XX, X ' X ' and X " X "), do not consider from the road surface or the light of peripheral reflection.

The basic functional principle of motor vehicles illuminator of the present invention is to prevent to cross plane (XX at the light beam of light source place generation, X ' X ' and X " X "), and, be based upon the motor vehicle illuminator that oncoming traffic user is not produced any glare effect when length is provided apart from road lighting by below the eye-level display (EE) that these light beams is remained on oncoming driver, pedestrian or observer., compare with standard vehicle under the situation of the vehicle on the road surface such as truck and offroad vehicle in the headlight level, the angle of light beam more is tilted to the road surface.

Basic functional principle is identical for all different embodiment of the present invention, and before for example being used for specifying each headlight unit and being included in these unit each, direction during the direction of lamp part forward and backward, right, left, upper and lower, considers the travel direction of vehicle.

Fig. 2 and Fig. 3 show the basic element of character and the operation principle of the preferred embodiment (40) of the cloverleaf pattern of the headlight among the present invention, and Fig. 4 and Fig. 5 are the basic elements of character of second preferred embodiment (50).The headlamp designs of being discussed comprises a light source (1), comprises three reflector group of three reflector elements, described each unit respectively forward sight (2,3), down look (12,13) and on look (22,23), and each reflector element has the light path of self.

The preceding lamp part of preferred embodiment (40,50) is installed in the head lamp body (20) with transparent front lens (10).This front lens (10) of being discussed is installed in the described head lamp body (20).

Headlight embodiment of the present invention uses standard halogen and xenonlamp.Light source can be incandescent, HID (high-intensity discharge), LED (light emitting diode), light source fluorescence or similar, perhaps can use the illumination based on optical fiber.

The reflecting surface that is included in each reflector in the reflector group is oval or the combination ellipse.Yet these surfaces can be parabola, sphere, cylinder, ellipsoid or its combination, or these reflecting surfaces can be the forms on multi-disc or free shape surface.

Reflecting surface is made by metal, plastics, Merlon, pottery, glass fibre and similar heat proof material, and coats bright and reflexive aluminium or similar material.Boron can add in the material to improve the heat-resisting and resistance to impact of preceding modulation element.

Fig. 2 illustrates the perspective view of first preferred embodiment (40), and Fig. 3 illustrates the side cross-sectional view of identical embodiment (40).Fig. 4 illustrates the perspective view of second preferred embodiment (50), and Fig. 5 illustrates the side cross-sectional view of identical embodiment (50).

Preferred embodiment (40,50) each forward sight (2,3), look (12 down, 13) and on look (22,23) reflector sections of unit or each unit can be used independent headlight, or each of these reflector elements (or reflector sections) also can be used as the combining structure that comprises two, three or more reflector group and other unit.

The combining structure that comprises the group of two reflectors can be used as look by making up down (12,13) and on look (22,23) reflector element and the structure similar that form to " hourglass ", perhaps as forward sight unit (2,3) with look down or on look the double structure of unit combination.

Comprise forward sight (2,3), down look (12,13) and on look three reflector group of (22,23) reflector element preferred compositions embodiment (40,50) be defined as " cloverleaf pattern headlight ".Preferred " clover " embodiment (40,50) forward sight in (2,3), down look (12,13) and on look (22,23) reflector element is respectively arranged with the preceding modulation element of following detailed description, no matter they are built-up section or independent headlight unit as " clover " embodiment:

The most preferred forward sight headlight unit of first preferred embodiment (40) of system (Fig. 2,3 and 6) comprises light shield (9), at least one reflecting surface (11) and at least one lens (7) of at least one light source (1), at least one reflector sections (2 and/or 3), at least one inclination.

This embodiment comprises half baffle plate (6), and this half baffle plate prevents to arrive the first half lens (7b) from the light beam of light source (1), reflector surface (2,3) and all built-in reflective faces, and hides the first half lens (7b).Inclination light shield (9) is positioned at the front of reflector sections (2) down.Light shield (9) and half baffle plate (6) are positioned so that from light source (1) and reflector sections (2,3) light beam by light shield (9) top edge and the opening (8) between the lower limb of half baffle plate (6) only arrive the latter half lens (7a), the road surface of only leading then.

As shown in Figures 2 and 3, lens (7) are seen by oncoming traffic user, yet, the lower limb of the top edge of light shield (9) and half baffle plate (6) is adjusted to: make two edges be positioned near the horizontal plane XX, and oncoming observer, driver and the pedestrian of plane X X who makes sight line be higher than the optical centre of scioptics (7) can not see light source (1) and reflector surface (2,3).

Focus (f4) and reflector (2 to lens (7), 3) (f2 f3) adjusts second focus, and the light beam that makes the latter halfs (7b) of lens (7) be guided all is no more than horizontal plane XX, and less than oncoming traffic user's eye-level display (eye level, EE).(in fact, plane X X is by the top edge of the headlight opening (8) of forward sight headlight unit).Therefore, obtained a kind of motor vehicle headlamp, the characteristics of this headlight are, light source and reflector surface are stashed with respect to oncoming traffic user, and in the illumination that does not have to provide under the prerequisite of glare effect long distance.

The forward sight reflector sections of first preferred embodiment (40) (2 and/or 3) is designed to: make light source (1) be positioned near public first focus (f1) of described reflector sections (2,3).Second focus (f3) of upper reflector part (3) is adjusted to: be positioned near the middle part of top edge of inclination light shield (9).Inclination light shield (9) is positioned at reflector sections (2) front down, also is the focus (f4) of lens (7).

Be reflected to the latter half (7a) of lens (7) from upper reflector part (3), the light that focuses on focus (f3).With the form of collimated light beam guiding road surface, and these light provide the illumination of long distance to these the latter half lens (7a) below plane (XX) with these light, the optical centre of this plane (XX) scioptics (7), and be parallel to road surface (in the surround).

Some light from light source (1) and following reflector sections (2) are reflected on half baffle plate (6) that hides the first half lens (7b), and the major part of these light is reflected on the inner surface of inclination light shield (9).Following second focus (f2) of reflector sections (2) is adjusted, made to go up on the reflecting surface (11) of front that beam reflected is being installed on upper reflector part (3) to be reflected at light shield (9).Reflecting surface (11) with these beam reflection to the latter half lens (7a).Some light beams from light source (1) and following reflector sections (2) are reflected on half baffle plate (6) that hides the first half lens (7b).Half baffle plate (6) stops the first half (7b) of these light arrival lens, and these beam reflected on himself are reflexed to the latter half lens (7a).With the beam direction road surface of being discussed, and these light beams always remain on plane X X following (in the surround) by the latter half lens (7a), so that short-range illumination to be provided.

Light shield (9) is installed in the front of the bottom (2) of forward sight reflector element, and prevents down that reflector sections (2) seen by oncoming traffic user.The top edge of light shield (9) is positioned near the plane X X, the optical centre of this plane X X scioptics, and be parallel to the road surface.

In the preferred embodiment, the inner surface of light shield (9) is reflexive.Yet it is reflexive that the inner surface of light shield (9) also can right and wrong.

Light shield (9) is installed on obliquity and its inner surface is to have merged reflecting surface (11) among reflexive embodiment, and this reflecting surface is installed in the front of upper reflector part (3).

The inner surface of this reflecting surface (11) is that throwing is reflexive, and is configured to: will reflex to the latter half lens (7a) from the light beam of the light shield with reflectivity inner surface (9) at a predetermined angle.The latter half lens (7a) are taken this these beam direction road surfaces, when the edge that illuminates the road, pavement and turning, guarantee effectively illumination and traffic safety.These light beams always remain on plane X X following (in the surround).

Light shield (9) and/or reflecting surface (11) can comprise a plurality of surface portions with two or more reflection angles, and perhaps each of these parts (9 and/or 10) can be provided to one or more from each.On the top edge of light shield (9), can form the part that is suitable for preferably ending (cut-off) type.Top edge with light shield (9) of suitable barrier portion can be provided to one or more auxiliary eye shades (99), described auxiliary eye shades does not prevent the cut-off effect of light, but prevent light source (1) and reflector surface (2,3) seen by ending the gap by oncoming traffic user, go up (referring to Figure 13 d and 13f) thereby avoid light to reflex to oncoming traffic user uncontrollably.

Half baffle plate (6) is installed in the front of upper reflector part (3), and stops light beam to arrive the first half (7b) of lens (7), and prevents that upper reflector part (3) from being seen by oncoming, the traffic user of sight line on horizontal plane XX.Half baffle plate (6) can vertically or obliquely be placed with respect to horizontal plane XX.The inner surface of half baffle plate (6) can be reflexive or non-reflexive.

When half baffle plate (6) when vertically placing, from the light beam of reflector sections (2) down and directly be not used to illumination from those parts that go up reflection at half baffle plate (6) in the light beam of light source.Yet, when half baffle plate (6) tilts, its angle is adjusted, beam reflected reflexes to the latter half lens (7a) to make it incite somebody to action thereon.The latter half lens (7a) are with these beam direction road surfaces, to help the short distance illumination.These light beams always remain on plane X X following (in the surround).

In the reflectivity inner surface of light shield (9), reflecting surface (11) and half baffle plate (6) each can be individually or is flat, recessed or protruding integratedly or its combination.On the top edge of the lower limb of half baffle plate (6) and/or light shield (9), can form the barrier portion of single or double, this depend on the magnitude of traffic flow be the right hand or left hand.

In order to increase luminous intensity in the desired zone (the particularly edge on road and dark space) improving visibility, or, can carry out multiple modification by double baffle plate (6) for the light of luminosity distributes.For this reason, half baffle plate (6) can be manufactured translucent so that the first half lens (7b) receive a certain amount of light.The lower limb of half baffle plate (6) can be designed to produce dead line (cut-off), and this dead line depends on that the part that makes the latter half lens can receive the type that a certain amount of light preferably ends.In this case, can one or more auxiliary eye shades be installed in the front or the back of half baffle plate (6), seen by oncoming traffic user to prevent light source (1) and built-in reflective face, and avoid uncontrolled light to reflex on their eyes, as the situation of the auxiliary eye shades of in the dead line of light shield (9), using (99).

As an alternative, the available prism lens of half baffle plate (6) (77) that stop light beam to arrive the first half lens (7b) replace, and the light beam that these prism lens (77) will be gone up scattering in this part (7b) of lens is rerouted to horizontal plane XX.The purpose of these prism lens (77) is to make the light beam from light source (1) and built-in reflective face to the first half lens (7b) arrive the first half lens (7b) with steeper angle, guarantees that thus light that the first half lens (7b) are led is always below horizontal plane XX.

In such embodiment, the latter half lens (7a) are used as main light guiding lens (main lens), and the first half lens (7b) are used as attachment lens.This application aims is to be used for illumination with the light that effective and efficient manner is produced light source (1), the energy of caused vehicle burden is minimum so that throw light on, thereby the edge that can safer mode satisfies the need, pavement and turning illumination, and do not need extra mechanism, compare with modular system simultaneously, the illumination of longer distance can be provided.

In the use among half embodiment of part lens (6b) as attachment lens, the available lens of prism lens (77) (7 and/or 77) replace, these lens (7 and/or 7) are flat, spherical, columniform, recessed, protruding, biconvex, biconcave lens or its combination, and perhaps the available Fresnel of prism lens (77) (Frensel) lens (7b and/or 77) replace.

Shown in Figure 13 a, 13b, 13c and 13d, half baffle plate (6) can replace with multi-piece baffle plate (66), and this multi-piece baffle plate (66) hides the first half lens (7b) in the Another Application of forward sight unit.

Each of described baffle plate (66) sheet can be reflexive or non-reflexive.The upper surface of each sheet and/or lower surface are flat in a preferred embodiment, and can be flat, recessed, protruding or its combination.

Figure 13 a is adjusted to the position angle of the shown baffle plate sheet of 13d, make following (back) edge of each baffle plate sheet and (preceding) edge of going up that is positioned at baffle plate sheet below each of these sheets be installed into and be parallel to plane X X at least.Like this, no matter how much quantity of baffle plate sheet is, all baffle plate sheets all are counted as a complete shadow shield (66) (Figure 13).

In these preferred embodiments, the position of baffle plate (66) sheet and light shield (9) is adjusted to: make observer or the traffic user of sight line more than horizontal plane XX can not see light source (1) and built-in reflective face.In this embodiment, directly from the light beam of light source and down reflector sections (2) and upper reflector partly (3) institute beam reflected all can not directly arrive the first half lens (7b).Therefore, being reflected only is directed to the road surface by baffle plate sheet and the light beam that arrives the first half lens (7b), and this is because these light beams are to arrive the first half lens (7b) to compare steeper angle with the projection-type headlight of standard.Therefore, utilize such headlight, can realize the illumination that improves not having glare effect simultaneously.

In the preferred embodiment with multi-piece baffle plate (66), second focus (f2) of following reflector sections (2) is adjusted to: make directly from the light beam of light source (1) and the upper surface (66a) that arrives the baffle plate sheet from following reflector sections (2) beam reflected under situation about not stopped by light shield (9).Then, these light beams are reflected to the lower surface (66b) of baffle plate sheet, so that these light beams can arrive the first half lens (7b) with steeper angle.Purpose is to guarantee to be used to illumination from the light beam of following reflector sections (2), so that the light loss consumption is minimum, obtain more effective illumination, and make in the headlight because the caused temperature increase minimum of light beam that light shield (9) stops, in the projection-type headlight of standard, stopped by light shield (9) from the following major part of the light beam of reflector sections (2).

By the first half lens (7b), the lower surface of baffle plate sheet (66b) light beam that reflected and that arrive the first half lens (7b) is by the road surface of only leading, and these the first half lens (7b) are as attachment lens.These light beams also are maintained at below the horizontal plane XX, and less than oncoming traffic user's eye-level display (EE), thereby can not quote glare effect.

In the preferred embodiment, the angle of baffle plate sheet is adjusted to: make from overhead gage surface (66a) and lower baffle plate surface (66b) beam reflected by the edge of the first half lens (7b) with bigger angle guideway, so that obtain significant visual dominance by being thrown light in pavement and turning.Like this, aspect two of road safety and pedestrains safeties,, significant visible sensation distance and security advantages have been obtained particularly at urban road and turning.

Lens (7) are the forms of planoconvex spotlight, and this plano-concave lens has flat rear surface and aspheric front surface, and these lens (7) can also be spherical, columniform or its combination, or the form of Fresnel (Frensel) lens.Lens (7) can also be flat, recessed, protruding, biconcave, biconvex or its combination.

And these lens can be the forms of single lens, and it can also be a pellicle mirror, in this pellicle mirror, only make those parts that it is used to throw light on, and perhaps can be suitable for preferably using this system by the lens of type by manufacturing.For this reason, shown in Figure 12 a and 12b, only the latter half of lens (7a) is used to illumination, and for example shown in Figure 12 c, 12d and the 12e, can revise lens (7) by type according to preferred, receive the light of controlled quatity with the part that guarantees the first half lens (7b), so that be used from illumination with the latter half lens (7a).The first half lens (7b) shown in Figure 12 a, 12c, 12d and the 12e can be translucent, perhaps these the first half lens (7b) can be pellicle mirrors (7b) independently, and independently the refracting characteristic of pellicle mirror (7b) is different with the refracting characteristic of the latter half lens (7a) for these.Be used to partial illumination or do among the as a whole embodiment at the first half lens (7b), the latter half lens (7a) are as main lens, and the first half lens (7b) are used as attachment lens.

Opening (8) is positioned between light shield (9) and half baffle plate (6), and allows to be directed to the road surface from the light of light source (1) and reflector sections (2,3).The top edge of opening (8) is near plane (XX), and this edge is actually, and lower limb by half baffle plate (6) forms.

The most preferred forward sight unit of second preferred embodiment (50) shown in Fig. 4,5 and 9 merged at least one light source (1), at least one reflector sections (2,3,2a, 2b, 2c), at least one light shield (9) and at least one lens (7).

Should before modulated structure comprise half baffle plate (6), half baffle plate (6) be used for stoping from light source (1), reflector sections (2,3,2a, 2b, 2c) and the light of all built-in reflective faces arrive the first half lens (7b), and hide the first half lens (7b).

Being installed in half baffle plate (6) of front of upper reflector part (3) and the light shield (9) that is placed on down the front of reflector sections (2) is configured to: feasible from light source (1) and reflector sections (2,3,2a, 2b, light beam 2c) by light shield (9) top edge and the mouth (8) between the lower limb of half baffle plate (6), and arrive the latter half lens (7a), then by the road surface of only leading.The focus (f4) of lens (7) and second focus (f3) of reflector sections (3) are adjusted to: the light beam that makes the latter half lens (7a) be guided can not surpass the eye-level display (EE) that horizontal plane XX can not arrive oncoming traffic user, the optical centre of horizontal plane XX scioptics (7) (in fact, plane X X is by the top edge of the opening (8) of forward sight unit).Like this, just obtained a kind of motor vehicle headlamp, the characteristics of this headlight are, light source and reflector surface are stashed with respect to oncoming traffic user, and in the illumination that does not have to provide under the prerequisite of glare effect long distance.

In second preferred embodiment that Fig. 9 is schematically shown, preferred reflector sections (2) down is hemispheric, its inner surface is reflexive, by two 1/4th hemisphere (quarter sphere) (2a, 2b) form, and between these two/4th hemisphere, inserted reflexive separator (2c).At separator (2c) and be suitable for inserting on the rear side of back 1/4th hemisphere (2b) of bulb the slit is arranged.(light that is not used in the use standard that is intended that projection-type headlight 2c) throws light on this hemisphere for 2a, 2b, so that more effective illumination is provided, and makes the interior temperature increase minimum of headlight.Preceding 1/4th hemisphere (2a) of this hemisphere (2) and back 1/4th hemisphere (2b) are placed with: make preceding 1/4th hemisphere (2a) beam reflected by this hemisphere (2) by retroeflection, near first focus (f1) of upper reflector part (3), the position at filament that this first focus is a light source or place, gas discharge gap.Back 1/4th hemisphere (2b) are placed with: make the light beam of falling on this 1/4th hemisphere (2b) be reflected to separator (2c), upwards reflector sections (3) then is reflected.These light beams are reflected to the latter half lens (7a) then, and are only throwed to the road surface.These light beams all are no more than horizontal plane XX, therefore can not cause glare effect when obtaining the most effective illumination.

Reflexive separator (2c) has flat reflecting surface, but also can be combinations recessed, protruding or these shapes.(2a 2b) is two-part construction to hemisphere, but also can be single type or multiple piece construction, and its reflecting surface is combinations flat, recessed, protruding or these shapes.Hemisphere (2a, 2b, 2c) light beam that can be used to guide down reflector sections (2) into reflexes to upper reflector part (3) once more, and wherein this upper reflector part is positioned at the inside or the outside of bulb corresponding to the bottom of light bulb filament or gas discharge gap.The parts (2a that these are discussed with reflection characteristic, 2b 2c) can be employed as the reflector structure (2,3) that is integrated with the upper reflector part, perhaps use as the reflector element that separates, and for position, shape or surface texture without any restriction.In these preferred embodiments, upper reflector part (3) is used as main reflector, and reflector sections (2) is used as auxiliary reflector down.

The following unit (12,13) of looking of these preferred embodiments (40,50) comprises the preceding modulation element that describes in detail below, no matter these preceding modulation elements be as the part of " cloverleaf pattern " preceding modulated structure still conduct independently headlight unit use.Looking the unit at first preferred embodiment (40) shown in Fig. 2,3 and 8 following comprises prone and according to the Another Application of the forward sight unit of indirect lighting principle work with respect to the direction of traffic flow.That is discussed looks light shield (19), at least one reflecting surface (31) and at least one lens (17) that headlight unit comprises at least one light source (1), at least one reflector sections (12 and/or 13), at least one inclination down.

This embodiment has at least one specular reflector (14) and at least one half baffle plate (16), and comprise the motor vehicle headlamp device, its characteristics are, have light source (1) and the built-in reflecting surface hidden for oncoming traffic user, thereby provide long-distance illumination and without any glare effect.This embodiment shown in Fig. 2,3 and 8 comprises half baffle plate (16), it has prevented to arrive from the light beam of light source (1) and the reflecting surface that all are built-in the latter half (17b) of lens (17), and hidden latter half lens (17b), and this embodiment also comprises the light shield (19) that is installed in reflector sections (12) inclination before.

On specular reflector (14) surface, can see lens (17).Yet, the leading edge that is installed in the back edge of reflector sections (12) light shield (19) before and is installed in reflector sections (13) half baffle plate (16) before is adjusted to and makes two edges all be positioned near the plane of optical centre of scioptics (17), and prevents that oncoming traffic user from seeing light source and built-in reflecting surface on specular reflector (14).Thus, avoided specular reflector to receive the light of uncontrolled quantity.

Look in the unit at the following of preferred embodiment (40), following visual reflex device part (12,13) is designed so that public first focus (f1) of light source (1) corresponding to two reflector sections (12,13).

Second focus (f13) of reflector sections (13) is adjusted to the antemarginal centre of the light shield (19) that is positioned at inclination, and it is also corresponding to the focus (f5) of lens (17).Be reflected onto first half lens (17a) from rear reflector part (13) and the light that focuses on second focus (f13).These light of being discussed are guided to specular reflector (14) by first half lens (17a).Subsequently, these light are by towards road reflection, and remain in the top edge by opening (18) and be parallel under the plane (X ' X ') on road surface (in the surround), thereby long-distance illumination is provided.

Most of light from front reflector part (12) is reflected on the light shield (19) that tilts.In preferred embodiment (40), the inner surface of light shield (19) is reflexive.Yet it is reflexive that the inner surface of light shield (19) also can right and wrong.

Therein light shield (19) be installed in the position of inclination and its inner surface be reflexive before in the modulated structure, the bottom of rear reflector part (13) is equipped with reflecting surface (31).Described reflecting surface (31) will reflex to first half lens (17a) at a predetermined angle from the light beam of light shield (19), and throwing light on by edge, pavement and the turning of satisfying the need thus provides outstanding illumination advantage.Light shield (19) and/or reflecting surface (31) can have the surface portion with two or more angles of reflection, perhaps can be one or more in such every kind of reflector (19 and/or 31).The surface texture of these preceding modulation elements (19,31) can be combinations flat, recessed, protruding or these shapes.

Part from the light beam of light source (1) and reflector sections (12) is reflected on half baffle plate (16) that hides latter half lens (17b).Half baffle plate (16) is installed in rear reflector part (13) before, and prevents that light from arriving latter half lens (17b).Described half baffle plate (16) prevents also that rear reflector part (13) from being checked, and the oncoming traffic user on the lip-deep plane of specular reflector (14) (X ' X ') sees.

With respect to the axis of the optical centre that passes through the lens (17) in the following visual reflex device unit (12,13), half baffle plate (16) can be installed in the position of vertical or inclination.The inner surface of half baffle plate (16) can be reflexive or non-reflexive.

In the embodiment that half baffle plate (16) is in vertical position, some directly from light source (1) and be not used to illumination by front reflector part (12) beam reflected.And half baffle plate (16) is among the embodiment of obliquity therein, and half baffle plate (16) beam reflected thereon reflexes to first half lens (17a).These light beams are guided to specular reflector (14) by first half lens (17a), and subsequently by towards road reflection.These light beams also always keep below plane (X ' X ') (in the surround), and the short distance illumination is provided.

That produce at the light source place and go up direct beam reflected at half baffle plate (16) and be reflected to first half lens (17a).First half lens (17a) guide to specular reflector (14) with these light beams.These light beams from specular reflector (14) towards road reflection.These light beams also always keep below plane (X ' X ') (in the surround), and help the short distance illumination.

In another preceding modulated structure, half baffle plate (16) in following visual reflex device unit (12,13) can be substituted by the multi-piece baffle plate of describing in detail in forward sight reflector element (2,3) (66).In its function aspects, the baffle plate (66) in multi-piece baffle plate (66) and the forward sight reflector element (2,3) is identical, just their direction differences in headlight.In addition, in the present embodiment, first half lens (17a) are as main lens, and later half part lens (17b) are as attachment lens.In the present embodiment, from two pellicle mirror (17a, light beam 17b) is reflected only towards the road surface by specular reflector (14), sight line be higher than plane (X ' X ') although oncoming traffic user on specular reflector (14) surface, can see the reflection of lens (17), but they can not see light source (1) and built-in reflecting surface (12,13,31).

Therefore, do not have uncontrolled luminous energy to reach oncoming traffic user's apparent altitude (EE), therefore can not cause glare effect.

Under look unit (12,13) another kind use, half baffle plate (16) can be alternative with the top auxiliary prism lens of describing in detail in forward sight headlight unit (2,3) (77).

The front portion (12) that light shield (19) is placed in down visual reflex device unit before.The leading edge of the back edge of light shield (19) and half baffle plate (16) is positioned near the plane of optical centre of scioptics (17).

The inner surface of the light shield of described inclination (19) is reflexive, and will be from the beam reflection of light source (1) and front reflector part (12) to reflecting surface (31).Described reflecting surface (31) is tilted to making will arrive first half lens (17a) from the beam reflection of light shield (19).First half lens (17a) guide these light beams towards specular reflector (14).These light beams, and can not be surpassed by the top edge of opening (18) and the plane parallel with the road surface (X ' X ') towards road reflection and the short distance illumination is provided by specular reflector (14).

Lens (17) have the shape with the planoconvex spotlight of flat top surface and non-spherical bottom, and collected light and it is throwed towards specular reflector (14).The following first half lens of looking in the unit (17a) in preferred embodiment (40,50) are used for illumination.Yet, also can make up lens by as shown in Figure 12 b to 12e, depending on the preferred part that only is used to throw light on by type, realize this system.Preferred embodiment (40,50) following looked employed different lens type in the unit (12,13), and (17a 17b) has and top lens type of describing in detail in forward sight unit (2,3) (7a, 7b) identical characteristic.

Opening (18) is positioned between light shield (19) and half baffle plate (16) and is positioned at specular reflector (14) before, and allows the light from light source (1) and reflector sections (12,13) pass through, and arrives specular reflector (14), and the road surface of arriving soon after.The top edge of opening (18) is on plane (X ' X ').

Specular reflector (14) is flat minute surface, and can be combinations recessed, that protrude or these shapes.Specular reflector (14) with light only towards road reflection.Oncoming traffic user sees specular reflector (14), but the leading edge of the back edge of the light shield of being discussed (19) and half baffle plate (16) is adjusted to and makes two edges all be positioned near the plane of optical centre of scioptics (17), and observer, driver and the pedestrian of sight line on the plane of the top edge of top edge by headlight opening (18) and specular reflector (14) (X ' X ') can see the reflection of lens (17) on specular reflector (14), but can not see light source (1) and reflecting surface (12,13,19,31).

Can do not surpassed plane (X ' X ') by specular reflector (14) towards the light beam of road reflection, can not arrive oncoming traffic user's apparent altitude (EE) yet.Therefore, oncoming observer, driver and pedestrian can not experience glare effect.

The following unit of looking at second preferred embodiment (50) shown in Fig. 4,5 and 11 comprises at least one light source (1), at least one reflector sections (12,13), at least one light shield (19) and at least one lens (17).

This embodiment comprises half baffle plate (16), it prevents from light source (1), reflector sections (12,13) and the light of all built-in reflective faces arrive latter half lens (17b), and hide latter half lens (17b), and this embodiment also comprises at least one specular reflector (14).

Be installed in rear reflector part (13) before half baffle plate (16) and to place front reflector part (12) light shield (19) before to be positioned as feasible from light source (1) and reflector sections (12,13) light beam between the leading edge of the back edge of light shield (19) and half baffle plate (16) by opening (18), and arrive first half lens (17a), guided towards the road surface subsequently.The focus (f5) of lens (17) and second focus (f13) of reflector (13) are adjusted to and make by the light beam of first half lens (17a) guiding by specular reflector (14) only towards road reflection, and these light beams all can not surpass the horizontal plane X ' X ' by the top edge of opening (18), and all can not reach oncoming traffic user's apparent altitude (EE).Therefore, obtained a kind of motor vehicle headlamp, be characterized in: light source (1) and reflector surface (12,13) are hidden for oncoming traffic user, and long-distance illumination is provided and does not have glare effect.

In second preferred embodiment (50), in shape and function aspects, preferred front reflector part (12) with top at forward sight reflector element (2,3) reflector sections (2a down described in detail in, 2b, 2c) identical, unique difference is their direction.In this embodiment, rear reflector part (13) is as main reflector, and front reflector part (12) is as auxiliary reflector.

A most important advantage of the preferred embodiment (50) is, part (12) scattering and can not being used to is thus thrown light on and is caused that the light beam that temperature raises is used to illumination from light source towards front reflector in the projection-type headlight of standard, therefore the illumination performance of the maximum on the road surface is provided, and the rising of the temperature in the headlight is reduced to minimum degree, and wherein the rising of the temperature in the headlight is a major issue of this class headlight.In this class headlight embodiment, front reflector part (12) can be integrated with rear reflector part (13), and the transmitter unit (12) that perhaps can be used as separation is made, and is installed in subsequently on the rear reflector part (13).

Look the unit on the preferred embodiment (40,50) and comprise the preceding modulation element of describing in detail below, no matter these preceding modulation elements be as the part of " cloverleaf pattern " preceding modulated structure still conduct independently headlight unit use.

Looking unit (22,23) on first preferred embodiment (40) shown in Fig. 2,3 and 7 comprises with respect to the direction of traffic flow towards last and according to the Another Application of the forward sight unit of indirect lighting principle work.Look light shield (29), at least one reflecting surface (21) and at least one lens (27) that headlight unit comprises at least one light source (1), at least one reflector sections (22 and/or 23), at least one inclination on being discussed.

This embodiment has at least one specular reflector (24) and at least one half baffle plate (26), and comprise the motor vehicle headlamp device, be characterized in having the light source hidden for oncoming traffic user and built-in reflecting surface, thereby provide long-distance illumination and without any glare effect.

Embodiment shown in Fig. 2,3 and 7 comprises half baffle plate (26), it has prevented to arrive from the light beam of light source (1) and the reflecting surface that all are built-in the first half (27b) of lens (27), and hidden first half lens (27b), and this embodiment also comprises the light shield (29) that is installed in reflector sections (23) inclination before.

See lens (27) outwardly at mirror reflector (24).Yet, the back edge of half baffle plate (26) that is adjusted at the leading edge of the light shield (29) that reflector (23) installs previously and installs previously at reflector (22), make two edges be positioned near the plane of the optical centre that passes lens (27), and prevent that oncoming traffic user from seeing light source and built-in reflective face on mirror reflector (24).Therefore, mirror reflector (24) is avoided receiving the light of uncontrolled amount.

On first preferred embodiment (40), look in the unit, last visual reflex device part (22,23) is designed to public first focus (f1) of light source (1) corresponding to two reflector sections (22,23).

Near the middle part of second focus (f22) of adjusting reflector sections (22) with the leading edge of the light shield (29) that is positioned at inclination, it is also corresponding to the focus (f6) of lens (27).Be reflected to latter half lens (27a) from front reflector part (22) and the light beam that focuses on second focus (f22).These light beams of being discussed are directed to mirror reflector (24) by the latter half (27a) of lens.Then, they are reflected to the road surface, and remain on the top edge that passes opening (28), under the plane (X " X ") that is parallel to the road surface (in the field of illumination), thereby long-distance illumination is provided.

The light shield (29) that tilts is gone up the most of light of reflection from rear reflector part (23).In preferred embodiment (40), the surface, inside of light shield (29) is reflexive.Yet the inner surface of light shield (29) is can right and wrong reflexive.

At light shield (29) before to be installed in the position of inclination and its inner surface be reflexive in the modulated structure, exist the top that is installed in front reflector part (22) and guiding by the reflecting surface (21) of light shield (29) beam reflected to latter half lens (27a).Reflecting surface (21) arrives latter half lens (27a) to reflection beam reflection thereon at a predetermined angle, thereby limit, pavement and turning by illuminating the road, and significant illumination advantage and traffic safety are provided.

Light shield (29) and/or reflecting surface (21) can have the surface portion with two or more angles of reflection, and one or more of every kind of such parts (29 and/or 21) maybe can be arranged.The surface texture of these preceding lamp parts (29,21) can be flat, recessed, protruding or its combination.

Some light from light source (1) and reflector sections (23) are gone up reflection at half baffle plate (26) that hides first half lens (27b).Half baffle plate (26) is installed in front reflector part (22) front, and prevents that light from arriving first half lens (27b).Described half baffle plate (26) prevents that also the oncoming traffic user of sight line on the lip-deep plane of mirror reflector (24) (X " X ") from seeing front reflector part (22).

Half baffle plate (26) can be installed in the position that the axle of optical centre of the lens (27) that pass relatively in the visual reflex device unit (22,23) is vertical or tilt.The inner surface of half baffle plate (26) can be reflexive or non-penetrating property.

In the embodiment that half baffle plate (26) is in vertical position, directly the light beam from light source (1) is not used in illumination with some from rear reflector part (23) beam reflected.And be among the embodiment of obliquity at half baffle plate (26), half baffle plate (26) arrives latter half lens (27a) to reflection beam reflection thereon.These light beams are directed to mirror reflector (24) by latter half lens (27a) and follow towards road reflection.These light beams also remain at plane (X " X ") following (in the field of illumination), and the short distance illumination is provided.

Locate generation and directly go up beam reflected to be reflected to rear section pellicle mirror (27a) at light source (1) at half baffle plate (26).Latter half lens (27a) are directed to mirror reflector (24) to these light beams.These light beams from mirror reflector (24) towards road reflection.These light beams also remain at below the plane (X " X ") (in the field of illumination), and help the short distance illumination.

In the modulated structure, half baffle plate (26) in the last visual reflex device unit (22,23) can be substituted by the multi-piece baffle plate of describing in detail in the forward sight reflector element (2,3) (66) before another kind of.Multi-piece baffle plate (66) in function of this baffle plate (66) and the forward sight reflector element (2,3) is identical; The direction difference of having only its headlight.Also in this embodiment, latter half lens (27a) are used as main lens, and forward part pellicle mirror (27b) is used as attachment lens, in this embodiment, from two pellicle mirrors (27a, light beam 27b) by mirror reflector (24) only towards road reflection, and sight line at plane (X " X ") although on oncoming traffic user see the reflection of lens (27), but can not see light source (1) and built-in reflective face (22,23,21).Therefore, do not have uncontrolled light can arrive oncoming traffic user's eye-level display (EE), thereby do not cause glare effect.

Similarly, half baffle plate (26) can be substituted by the auxiliary prism lens of describing in detail in the above-mentioned forward sight headlight unit (2,3) (77).Light shield (29) is placed on rear reflector part (23) front of visual reflex device unit.The posterior border position of the leading edge of light shield (29) and half baffle plate (26) is near the plane of the optical centre that passes the lens (27) in the visual reflex device unit (22,23).In this embodiment, the top edge of mirror reflector (24) is positioned near the plane (X " X ") of the top edge that passes opening (28), and is parallel to the road surface.

Be in obliquity and have among the embodiment of reflective interior surfaces at light shield (29), reflexed to reflecting surface (21) by light shield (29) from the light of light source (1) and rear reflector part (23).Described reflecting surface (21) tilts, so that the beam reflection from light shield (29) is arrived latter half lens (27a).Latter half lens (27a) are directed to mirror reflector (24) to these light beams.These light beams are reflexed to the road surface by mirror reflector (24), and short distance illumination is provided, and can not exceed plane (X " X "), and its midplane (X " X ") passes the top edge of opening (28) and parallel with the road surface.

Lens (27) have the form of planoconvex spotlight, and this planoconvex spotlight has flat lower surface and non-dome surface, and lens (27) are collected light and the light projection to mirror reflector (24).Back half (27a) of looking the lens in the unit on the preferred embodiment (40,50) is used to illumination.Yet 12b is to the preferred type of ending shown in the 12e with reference to the accompanying drawings, and system can realize by constructing the lens that only have the part that is used to throw light on.On preferred embodiment (40,50), look the dissimilar lens that use in the unit (22,23) (27a, 27b) have with above-mentioned forward sight unit (2,3) in lens type (7a, 7b) the identical characteristic described in detail.

Opening (28) is positioned between light shield (29) and half baffle plate (26) and to be positioned at mirror reflector (24) preceding, and is delivered to mirror reflector (24) and then to the road surface from the light of light source (1) and reflector sections (22,23).The top edge of the top edge of opening (28) and mirror reflector (24) is positioned near the plane (X " X ").

Mirror reflector (24) is a level crossing, and can be recessed, protruding or its combination.Mirror reflector (24) only reflexes to the road surface to light.Oncoming traffic user sees mirror reflector (24), but adjust the leading edge of the light shield of being discussed (29) and the back edge of half baffle plate (26), make two edges be positioned near the plane of the optical centre that passes lens (27), and observer, driver and the pedestrian of sight line on the plane of the top edge of top edge that passes headlight opening (28) and mirror reflector (24) (X " X ") can see the reflection of the lens (27) on the mirror reflector (24), rather than light source (1) and reflecting surface (22,23,29,21).

The light beam that reflexes to the road surface by mirror reflector (24) all can not exceed the plane (X " X ") of the top edge that passes opening (28), can not arrive oncoming traffic user's eye-level display (EE).Therefore, oncoming observer, driver and pedestrian do not suffer glare effect.

Look the unit on second preferred embodiment (50) shown in Fig. 4,5 and 10 and comprise at least one light source (1), at least one reflector sections (22,23), at least one light shield (29) and at least one lens (27).

This embodiment comprises and prevents from light source (1), reflector sections (22,23) and all the light of built-in reflective faces arrives first half lens (27b) and hides half baffle plate (26) and at least one mirror reflector (24) of first half lens (27b).

Adjustment is installed in half baffle plate (26) of front reflector part (22) front and is placed on the position of the light shield (29) of rear reflector part (23) front, make directly from light source (1) with from reflector sections (22,23) beam reflected is passed the opening (28) between the back edge of the leading edge of light shield (29) and half baffle plate (26), and arrives latter half lens (27a).Adjust the focus (f6) of lens (27) and second focus (f22) of reflector sections (22), make the light beam that guides by latter half lens (27a) only be reflexed to the road surface by mirror reflector (24), and these light beams all can not exceed the horizontal plane X " X " of the top edge that passes opening (28), the oncoming traffic user's of no show eye-level display (EE).As a result, obtaining oncoming traffic user hidden light source (1) and reflector surface (22,23) and long-distance illumination to be provided and not have glare effect is the motor vehicle headlamp of characteristics.

In second preferred embodiment (50), (shape 2c) is identical with function for 2a, 2b, and unique difference is its direction with the middle following reflector sections of describing in detail of above-mentioned forward sight reflector element (2,3) for preferred rear reflector part (23).In this embodiment, front reflector part (22) is used as main reflector, and then reflector sections (23) is used as auxiliary reflector.

One of most important advantage of this preferred embodiment (50) is to scatter to rear reflector part (23) and therefore can not be used to throw light on, cause the light beam of temperature increase to be used to illumination from light source (1) in standard projection-type headlight, thereby provide the performance of the highest luminance on the road surface, and the temperature that minimizes in the headlight increases, and this temperature increase is the prominent question of this class headlight.

In this class headlight embodiment, rear reflector part (23) can be integrated with front reflector part (22), maybe can be manufactured into independent reflector element (23), and then be installed on the front reflector part (22).

Some different headlamp designs combinations can be developed, and need not to reflector (2,2a, 2b, 2c, 3,12,13,22,23), whole build-in components (6,16,26,9,19,29,11,21,31,66), lens (7,17,27,77) or quantity, shape and the position of other build-in components among the preferred headlight embodiment (40,50) of foregoing detailed description carry out any restriction, wherein operation mechanism remains unchanged.Some examples of this embodiment are shown below:

Fig. 6 and 9 illustrates the headlamp designs with single reflector, it is the application of forward sight unit in the preferred embodiment (40,50), and wherein single reflector has himself light source, and it has characteristic like the forward sight unit class with these embodiment (40,50), function and operation principle.

Fig. 7 and 10 illustrates the headlamp designs with single reflector, it is the application of looking the unit in the preferred embodiment (40,50), and wherein single reflector has himself light source, and its have with these embodiment (40,50) on look characteristic like the unit class, function and operation principle.

Fig. 8 and 11 illustrates the headlamp designs with single reflector, it is the application of looking the unit in the preferred embodiment (40,50) down, and wherein single reflector has himself light source, and have with these embodiment (40,50) following and look characteristic like the unit class, function and operation principle.

Embodiment among Fig. 6,7,8,9,10 and 11 can be by the form of the group that formed by two, three or more reflector, be used as have single source or wherein each unit have the combining structure of himself light source, and need not any restriction is arranged in direction and quantitative aspects.

Accompanying drawing 13a, b and c are side view (13a), perspective view (13b) and the front views (13c) of preferred baffle type.

Accompanying drawing 13d, e, f and g illustrate the different application of preferred embodiment (40,50), and Figure 13 d is illustrated in the schematic diagram of the reflection technology that uses among the embodiment with baffle plate; Accompanying drawing 13e illustrates the have LED schematic diagram of application of system of (light emitting diode); Accompanying drawing 13f illustrates down reflector sections and has hemisphere (2a, 2b, 2c) embodiment of form; Accompanying drawing 13g illustrates the detailed perspective view of described preferred hemisphere.

Embodiment for led light source schematically illustrated in accompanying drawing 13e, suppose that the pellicle mirror lighting theory remains unchanged, long-distance illumination is provided and does not have the motor vehicle headlamp system of glare effect to use by himself the led light source with enough luminous intensities is provided to each reflector surface, wherein each LED reflector surface is directed to light the latter half lens (7a) and then is directed to the road surface.Suppose that the pellicle mirror lighting theory remains unchanged, provide long-distance illumination and the motor vehicle headlamp system that do not have a glare effect also can use based on the lighting engineering of optical fiber by using.

Similarly, light shield (9,19,29) and/or half baffle plate (6,16,26) or other preceding lamp part can be used as removable preceding lamp part, and quantity, shape and orientation angle are not had any restriction.

Based on can directly using in light fixture with system at the pellicle mirror lighting theory of foregoing detailed description shown in Figure 14: identical operation principle is followed in supposition, application also can be used in the motor vehicle illumination in the bulb of this system, and it also can be used in the illumination of the general lighting of full indoor and outdoors and full optical device.

For these purposes, describe and in Figure 14, use in the schematically illustrated preferred bulb (60) below in detail and can be used for all known luminaire (bulb type) and filament, white heat, fluorescence, HID (high-intensity discharge), LED or based on light source and other Different Light of optical fiber.

Use (60) in the preferred bulb and comprise at least one micro-reflector (62 and/or 63), at least one little light shield (69), at least one little half baffle plate (66) and at least one lenticule (67).Light shield (69) is that the embodiment with reflection that tilts can comprise one or more additional auxiliary little reflectings surface (65).Light source in a preferred embodiment (bulb) is installed in cylindrical glass pipe (68) inside, and can use dissimilar glass tubes, or can not have application system under the situation of glass tube.By this class bulb, the gas discharge gap or the filament of light source (1) is set, make its first focus (f1) corresponding to micro-reflector (62,63).Light shield (69) and half baffle plate (66) are installed,, but are allowed light to pass so that prevent to see the other way around gas discharge gap or filament.In this embodiment, the lower limb of the top edge of light shield (69) and half baffle plate (66) is positioned near the horizontal plane of the optical centre that passes lenticule (67), and do not have light can arrive the observer of sight line on this plane eye-level display (EE), thereby do not cause glare effect.In little light shield (69) inclination and its inner surface is among reflexive embodiment, and the little reflecting surface (61) that is installed in corresponding to the last micro-reflector part front of light shield (69) can be arranged.Reflecting surface (61) is tilted, so that the latter half lens (67a) that arrive lenticule (67) from the beam reflection of light shield (69).

Similarly, when application in the bulb is used to general lighting, on the observer's who plans the outside, surround eyes, do not produce glare effect, or when system is used to optical device, under the light beam that does not have uncontrolled and sight line to disturb is in situation in the visual field or on the direction of observation, can realize fabulous illumination optical performance.

Suppose the groundwork principle of the system of following, can carry out some modifications light source and the build-in components thereof that uses among this class embodiment.For this reason, except that them, little half baffle plate (66) can be substituted by little baffle plate (66), maybe can use the microprism lens or another the equivalent lenticule that use in the headlight embodiment of foregoing detailed description.Following reflector sections (62) reflecting surface that hemisphere or bulb inside has a similar functions that can be reflected substitutes, and the light beam that drops on the bottom with guiding is to upper reflector partly (63).

Claims (35)

1. one kind provides long-distance illumination and does not have the headlight of glare effect, has at least one light source (1), at least one reflector sections (2 and/or 3), at least one light shield (9) and at least one lens (7),

Wherein, light source (1) and reflector surface are hidden for oncoming traffic user;

It is characterized in that, incorporated at least one half baffle plate that hides the first half (7b) of described lens (7) into, it prevents from light source (1), the light beam of reflector surface (2 and/or 3) and all built-in reflective faces arrives the first half lens (7b), light source (1) and all reflectings surface are hidden for oncoming traffic user, described half baffle plate (6), the focus (f4) of described light shield (9) and described lens (7) is configured to, and makes opening (8) between the lower limb of the top edge pass light shield (9) and half baffle plate (6) and the light beam that arrives the latter half lens (7a) only be directed to the road surface.

2. according to the headlight of claim 1, wherein said reflector sections (2) is inserted in form between described two 1/4th hemisphere (2a, 2b) for be made of hemisphere and spacer (2c) two 1/4th hemisphere (2a, 2b), described reflector sections (2) is inclined to the beam direction reflector sections (3) from described light source (1), and the described light beam device part (3) that is reflected reflects and is directed to the latter half lens (7a).

3. one kind provides long-distance illumination and does not have the headlight of glare effect, has light shield (9) and at least one lens (7) of at least one light source (1), at least one reflector sections (2 and/or 3), at least one inclination,

Wherein, light source (1) and reflector surface are hidden for oncoming traffic user;

It is characterized in that, be installed in described reflector sections (3) at least one reflecting surface (11) before, hide at least one half baffle plate (6) of described the first half lens (7b), prevent to arrive the first half lens (7b) from the light beam of light source (1), reflector surface (2 and/or 3) and all built-in reflective faces, and

Light shield of described inclination (9) and reflecting surface (11) are configured to, and are reflexed to the latter half lens (7a) by described reflecting surface (11) and are prevented from arriving oncoming traffic user's eye-level display (EE) by described light shield (9) beam reflected.

4. according to the headlight of claim 1 and 3, it is characterized in that, at least one half baffle plate (6) is installed in vertical or obliquity, prevent that by hiding pellicle mirror (7b) light from arriving the first half lens (7b), and when being in obliquity, reflect thereon light beam to the latter half lens (7a), described half baffle plate (6) is flat, recessed, protruding or its combination, and has reflectivity or non-reflexive inner surface.

5. according to the headlight of claim 3, it is characterized in that at least one reflecting surface (11) will be from the beam reflection of the light shield (9) that tilts to the latter half lens (7a), described reflecting surface (11) is flat, recessed, protruding or its combination.

6. one kind provides long-distance illumination and does not have the headlight of glare effect, has at least one light source (1), at least one reflector sections (12 and/or 13), at least one light shield (19) and at least one lens (17),

Wherein, light source (1) and reflector surface are hidden for oncoming traffic user;

It is characterized in that, be installed in described reflector (13) before and second focus (f13) that hides at least one half baffle plate (16), at least one specular reflector (14) and the described reflector (13) of latter half lens (17b) be adjusted to by first half lens (17a) and guide light beam from reflector sections (13)

The focus (f5) of described light shield (19), described half baffle plate (16) and lens (17) is configured to hide light source (1), described reflecting surface (12 and/or 13) and all built-in reflective faces for oncoming traffic user, light beam by described first half lens (17a) guiding specular reflectors (14) only is directed to the road surface then, and can't arrive oncoming traffic user's eye-level display.

7. according to the headlight of claim 6, wherein the described reflector surface (12) of the described hemisphere form of claim 2 is inclined to the beam direction reflector sections (13) from light source (1), and described light beam is reflected by reflector sections (13) again and is led to first half lens (17a).

8. one kind provides long-distance illumination and does not have the motor vehicle headlamp of glare effect, has at least one light source (1), at least one reflector sections (12 and/or 13), at least one light shield (19) and at least one lens (17),

Wherein, light source (1) and reflector surface are hidden for head-on driving the traffic user who comes;

It is characterized in that, be installed in the reflecting surface (31) of described reflector (13) bottom and at least one half baffle plate (16) of covering latter half lens (17b), and described half baffle plate (16) prevents to arrive latter half lens (17b) from the light beam of light source (1), reflector surface (12 and/or 13) and all built-in reflective faces, and

The light that reflecting surface (31) will be reflected by the light shield (19) of described inclination reflexes to first half lens (17a), described first half lens (17a) are guided these light towards specular reflector (14), and specular reflector (14) is only towards these light of road reflection.

9. according to the headlight of claim 6 and 8, it is characterized in that, at least one half baffle plate (16) is installed in vertical or obliquity, prevent that by hiding pellicle mirror (17b) light from arriving latter half lens (17b), and when being in obliquity, reflect thereon light beam to first half lens (17a), described half baffle plate (16) is flat, recessed, protruding or its combination, and has reflectivity or non-reflexive inner surface.

10. headlight according to Claim 8 is characterized in that, at least one reflecting surface (31) will be from the beam reflection of the light shield (19) that tilts to first half lens (17a), and described reflecting surface (31) is flat, recessed, protruding or its combination.

11. headlight according to claim 6 and 8, incorporated specular reflector (14) into, described specular reflector (14) is for flat, recessed, protruding or its combination and be installed in described reflector sections (12 and/or 13) before, only towards road reflection from light source (1) and reflecting surface and the light beam of guiding by first half lens (17a).

12. one kind provides long-distance illumination and does not have the headlight of glare effect, has at least one light source (1), at least one reflector sections (22 and/or 23), at least one light shield (29) and at least one lens (27),

Wherein, described light source (1) and reflector surface are hidden for oncoming traffic user;

It is characterized in that, be installed in described reflector sections (22) before and hide at least one half baffle plate (26) and at least one specular reflector (24) of first half lens (27b), and

Described reflector surface (22) reflection from the light beam of reflector sections (22) to latter half lens (27a),

The focus (f6) of described light shield (29), described half baffle plate (26) and described lens (27) is configured to hide light source (1), reflecting surface (22 and/or 23) and all built-in reflective faces for oncoming traffic user, the light beam of being guided towards specular reflector (24) by described latter half lens (27a) only is directed to the road surface then, and can't arrive oncoming traffic user's eye-level display (EE).

13. headlight according to claim 12, wherein the described reflector surface (23) of the described hemisphere form of claim 2 is tilted, with will be from the beam direction reflector sections (22) of light source (1), and described light beam be reflected by reflector sections (22) again and is led to latter half lens (27a).

14. one kind provides long-distance illumination and does not have the headlight of glare effect, has at least one light source (1), at least one reflector sections (22 and/or 23), at least one light shield (29) and at least one lens (27),

Wherein light source (1) and reflector surface are hidden for oncoming traffic user;

At least one half baffle plate (26) that it is characterized in that being installed in the reflecting surface (21) at described reflector sections (22) top and hide preceding pellicle mirror (27b), and

Described half baffle plate (26) prevents to arrive preceding pellicle mirror (27b) from the light beam of described light source (1), reflector surface (22 and/or 23) and all built-in reflectings surface, and

Reflecting surface (21) reflexes to back pellicle mirror (27a) with the light of light shield (29) reflection of described inclination,

Described back pellicle mirror (27a) is guided these light towards specular reflector (24), and

Specular reflector (24) is only towards these light of road reflection.

15. headlight according to claim 12 and 14, it is characterized in that at least one half baffle plate (26) is installed on the position of vertical or inclination, prevent that by hiding pellicle mirror (27b) light from arriving preceding pellicle mirror (27b), and when it is in obliquity, the beam reflection that will fall thereon arrives back pellicle mirror (27a), described half baffle plate (26) is flat, recessed, protruding or its combination, and has reflectivity or non-reflexive inner surface.

16. according to the headlight of claim 14, it is characterized in that at least one reflecting surface (21) will be from the beam reflection of the light shield (29) that tilts to latter half lens (27a), described reflecting surface (21) is flat, recessed, protruding or its combination.

17. according to claim 12 and 14 described headlights, incorporated specular reflector (24) into, it is installed in reflector sections (22 and/or 23) before, only towards road reflection from light source (1) and reflecting surface and by the light beam of back pellicle mirror (27a) guiding, described specular reflector (24) is flat, recessed, protruding or its combination.

18. headlight according to claim 12 and 14, incorporated at least one planoconvex spotlight (7 into, 17,27), its towards the road surface and/or specular reflector (14,24) guiding from the light beam of light source (1) and reflecting surface, and described lens (7,17,27) be spherical, columniform, recessed, protruding, biconcave, biconvex or its any combination, perhaps the lens by Fresnel lens or any other type substitute.

19., wherein, can use the full impregnated mirror and/or, perhaps only have the lens of half or definite lens component (7,17,27) to be used for illumination to be suitable for preferably using lens by the form of the lens of type according to the headlight of claim 15.

20. according to claim 1,3,6,8,12 and 14 headlight, it is characterized in that forward sight (2,3), down look (12,13) and on cover (9,19,29) and half baffle plate (6,16,26) looked in (22,23) headlight unit removable, and light path is fully opened.

21. according to claim 1,3,6,8,12 and 14 headlight, it is characterized in that forward sight (2,3), look (12 down, 13) and on look (22,23) cover in the headlight unit (9,19,29) and/or half baffle plate (6,16,26) has the otch that is suitable for preferably ending type at their free edge place.

22. according to claim 1,3,6,8,12 and 14 headlight, it has forward sight (2,3), look (12 down, 13) and on look (22,23) cover in the headlight unit (9,19,29) and/or half baffle plate (6,16,26) free edge place ends among the embodiment of otch, have one or more assist shroud (99), be used to prevent that sight line is near the plane X X the notch portion, X ' X ' or X " X " on oncoming observer or traffic user see light source and reflecting surface, but do not stop the cut-off effect of light.

23., wherein, have only reflector element (2,3 according to claim 1,3,6,8,12 and 14 headlight, 12,13,22,23) one in is used, and to structure, location and the position angle of number, shape, reflecting surface without any restriction, as long as the pellicle mirror lighting theory remains unchanged.

24. according to claim 1,3,6,8,12 and 14 headlight, it is characterized in that hiding pellicle mirror (7b) (or 17b, 27b, depend on its position) at least one multi-piece baffle plate (66), wherein, arrive the upper surface (66a) of baffle plate sheet from the light beam of light source (1) and following reflector sections (2), be reflected to the bottom surface (66b) of an overhead gage sheet then, arrive with the angle steeper by these surfaces (66b) beam reflected and to go up pellicle mirror (7b) than the angle of they and plane X X, described lens (7b) are only guided the light beam that drops on above it towards the road surface, and these light beams all are no more than horizontal plane XX, X ' X ' and X " X ".

25. according to claim 1,3,6,8,12 and 14 described headlights, (half baffle plate 27b) (6,16,26) is translucent for 7b, 17b to it is characterized in that hiding the part that is not used in illumination of lens (7,17,27).

26., wherein, hide lens (7 according to claim 1,3,6,8,12 and 14 headlight, 17,27) the first half that is not used in illumination (7b) or depend on the pellicle mirror that is not used in illumination (17b, half baffle plate (6 27b) of position, 16,26) substitute by at least one prism lens (77).

27. according to claim 1,3,6,8,12 and 14 headlight, it is characterized in that being not used in the lens half (7b of of illumination, 17b, 27b), perhaps those depend on that preferred part of ending the lens that are not used in illumination of type is translucent or opaque fully, perhaps conduct and main pellicle mirror (7a, 17a, 27a) compare lens component with different refractivity and make auxiliary pellicle mirror (7b, 17b, 27b).

28. according to claim 1,3,6,8,12 and 14 headlight provides long-distance illumination and does not have glare effect, has at least one reflector surface (2 of LED (light emitting diode) light source of having arranged the enough numbers with enough luminous intensities thereon, 3,12,13,22,23), at least one led light source (1), at least one light shield (9,19,29) and at least one lens (7,17,27), it is characterized in that light source (1) and reflector surface (2,3,12,13,22,23) hide for head-on driving the traffic user who comes, incorporate at least one half baffle plate (6,16,26) into, it hides the first half lens (7b, 17b 27b), and prevents from light source (1), reflector surface (2,3,12,13,22,23) and the light beam of all built-in reflectings surface arrive the first half lens (7a) (or preceding (17a) or back (27a) half part lens, depend on the location).

29. the headlight of any one in requiring according to aforesaid right, it is characterized in that form with the reflector group that forms by two (hourglass shape), three (cloverleaf pattern) or more a plurality of reflector element, application has at least one light source, its oneself light source is perhaps arranged and to direction and number each unit without any restriction.

30. according to claim 1,3,6,8,12 and 14 headlight, wherein, built-in light prevents and/or reflecting surface is flat, recessed, protruding or its combination, and to number, shape, location and orientation angle without any restriction.

31. headlight, it is worked according to the pellicle mirror lighting theory, the long-distance illumination of free from glare effect is provided, comprise following technology element, described headlight has at least one light source (1), at least one reflector sections (2 and/or 3), at least one light shield (9) and at least one lens (7)

Wherein, light source and reflector surface are hidden for oncoming traffic user,

It is characterized in that hiding half baffle plate (6) of the first half lens (7b), it prevents to arrive the first half lens (7b) from the light beam of light source (1), reflector surface (2,3) and all built-in reflective faces,

Light shield (9) is placed in the front of reflector sections (2),

The lower limb of the top edge of described light shield (9) and half baffle plate (6) is adjusted to, make light source and all built-in reflective faces be hidden with respect to the oncoming observer or the traffic user of sight line on the horizontal plane XX of the optical centre that passes lens (7), and the focus (f4) of lens (7) is adjusted to, make the light of the opening (8) between the top edge of the lower limb pass described half baffle plate (6) and light shield (9) arrive the latter half lens (7a)

The latter half lens (7a) are only guided these light towards the road surface, and these light do not exceed horizontal plane XX,

By with the light of the main pellicle mirror among the embodiment of indirect method work (preceding 17a, back 27a) guiding by minute surface transmitter (14 and 24) only towards road reflection and do not cause glare effect.

A 32. bulb (60), incorporate at least one gas discharge gap into or be positioned at least one filament that its focus (f) is located, at least one micro-reflector (62,63), tilting or hiding the other way around at least one the little cover (light shield) (69) of reflector surface (62) down in upright position, at least one lenticule (67), tilting or the upright position hides one or more pieces miniature half baffle plates (66) at least of lenticular the first half (67b), work is used to general lighting device or full optical device to this bulb according to the pellicle mirror lighting theory, and the highest luminance performance of free from glare effect is provided.

33., wherein descend reflector sections (62) to be substituted, will drop on the beam direction upper reflector part (63) of bottom by inner or outside hemisphere or the reflecting surface of bulb with similar functions according to the bulb (60) of claim 32.

34. according to the bulb (60) of claim 32, wherein system can use under the situation of lens (67) not having reflector sections (62 and/or 63) or do not have.

35. bulb (60) according to claim 32, incorporate at least one gas discharge gap into or be positioned at least one filament that its focus (f) is located, at least one micro-reflector (62 and/or 63), tilting or hiding the other way around at least one the built-in little cover (light shield) (69) of reflector surface (62) down in upright position, at least one lenticule (67), tilting or the upright position hides at least one microprism lens (77) or other equivalent lens of lenticular the first half (67b), wherein the latter half lens (67a) are as main lens, the first half lens (67b) are as attachment lens, and work provides the highest luminance performance of free from glare effect to this bulb according to the pellicle mirror lighting theory.

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