WO2018082224A1 - High resolution automobile headlight optical module and high resolution high beam illumination control method therefor - Google Patents

High resolution automobile headlight optical module and high resolution high beam illumination control method therefor Download PDF

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Publication number
WO2018082224A1
WO2018082224A1 PCT/CN2017/074200 CN2017074200W WO2018082224A1 WO 2018082224 A1 WO2018082224 A1 WO 2018082224A1 CN 2017074200 W CN2017074200 W CN 2017074200W WO 2018082224 A1 WO2018082224 A1 WO 2018082224A1
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lens group
spot
high
light
white
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PCT/CN2017/074200
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French (fr)
Chinese (zh)
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杨珏晶
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武汉通畅汽车电子照明有限公司
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V13/00Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/12Combinations of only three kinds of elements
    • F21V13/14Combinations of only three kinds of elements the elements being filters or photoluminescent elements, reflectors and refractors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V14/00Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/04Controlling the distribution of the light emitted by adjustment of elements by movement of reflectors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00Refractors for light sources
    • F21V5/04Refractors for light sources of lens shape
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00Reflectors for light sources
    • F21V7/04Optical design

Abstract

A high resolution automobile headlight optical module and a high resolution high beam illumination control method therefor. The high resolution automobile headlight optical module comprises: a laser source array (1) and a collimation lens group (3) provided therein, a converging lens group (7), a fluorescent ceramic (6), and a projection lens group (4). An electric control deflection reflective mirror unit (5) is provided in front of the light exit direction of a laser beam combining lens group (2). Reflecting surfaces of a reflective mirror form a segment which scans in a reciprocating manner in a high-speed reciprocating shaft winding swing within a specified rotating angle range. A transmission type fluorescent ceramic converts a blue single wavelength light illuminated on the front side of the fluorescent ceramic into a while composite wavelength light for outputting on the back of the fluorescent ceramic. A dark space formed by a high resolution automobile headlight can reach the size of the head when an opposite driver is positioned at different positions, and other spaces still keep high-brightness illumination when a target does not exist completely so that the dazzling of the opposite driver can be avoided.

Description

High Resolution vehicle headlamp optical beam module and the high-resolution illumination control method FIELD

The present invention relates to a lamp, in particular, the present invention relates to an intelligent lamp module and application method. More particularly, the present invention relates to a car headlight high-resolution and high-resolution chi beam lighting control method. The chi high resolution and high resolution beam vehicle headlamp illumination control method of the present invention, a high-resolution control of the illumination beam vehicle headlamp, such that the high resolution dark region is formed only vehicle headlamp the size of the other drivers at different locations of the head, the other space remains high intensity lighting when there is no target, this will not cause dazzling other drivers.

Background technique

With the vehicle driving at night security issues have become increasingly prominent, more and more automobile-related manufacturers in the development of new intelligent headlight technology. The so-called new intelligent headlight technology is mainly based on AFS and achieve ADB function as variable headlight beam pattern development purposes. For example, with the ADB function headlight, with a vehicle detection system. Detecting the other participants on the road is found within a certain interval headlight lighting system intelligently adjusting the brightness of the illumination section illuminating the region to close or even directly to form an independent local dark space in the overall lighting area, to avoid the danger of blinding form of illuminated person, but no space to other road participants continue to maintain high brightness lighting. In such a support, we can guarantee (adaptive headlights mounted LED) lighting quality front, the other participants on the road would not (for example opposite, with the traveling vehicle or the like) is formed dangerous glare to ensure that the parties to the night driving safety on the road.

One of the best available solution, a so-called MATRIX headlight based on matrix technology, this solution will be continuously illuminated space is divided into different whole headlight blocks, each block by a number of different responsible LED lighting by extinguishing the LED particular block, may be provided a minimum of about 1 ° dark area.

However, the above matrix including the inner aspect of the headlight, the irradiation range is adjustable to achieve this conventional lamps, there is a common problem, that is, the minimum angle formed system is still too dark areas. That is, while dark areas can be formed so that glare is not a driver of the target vehicle, but the scope of the dark area has much higher than the desired width of the target vehicle, resulting in the loss of the illumination area we need. For example, the aforementioned matrix headlights, 0.5-0.1 ° provides the minimum dark area. The actual lateral width of the dark areas depending on distance and our goals, such as 400 meters in ADB desired functioning, is the width of the dark area (400 m * tan 0.5 °) 3.5 m, while the actual vehicle width (in ordinary passenger cars, for example) of about 1.9 meters, apparently dark areas is too big.

The so-called ADB function, the ideal situation is that only other driver in the different size of the head position of the dark area formed by the intelligent headlamps, other space remains high intensity lighting when there is no target, so that the other party will not be dazzling , it can also illuminate any area on the route of travel as much as possible.

To this end, the art seeks a chi high-resolution and high-resolution beam vehicle headlamp illumination control method, a high resolution and high beam headlight illumination control method may be implemented on a high-resolution car headlights beam lighting control, so that the high resolution dark region is formed only other vehicle headlamp size of the head of the driver in different positions, other spaces remain high intensity illumination when there is no target, this will not cause the other dazzling the driver.

SUMMARY

For the above problems, an object of the present invention is: to provide a new automotive headlamp lighting headlight high resolution and high resolution beam lighting control method.

Aspect of the present invention is as follows:

High Resolution vehicle headlamp optical module, comprising: a laser light source array and a collimator lens disposed therein group, converging lens group, a projection lens group and the fluorescent ceramic, wherein

A laser light source array constituted by a semiconductor laser array,

Disposed in the light source array direction of the laser beam combiner laser lens group, the light ray emitted from the array laser light source collimated into parallel light,

Laser beam combiner lens group in light direction setting unit with an electrically controlled mirror deflection, the quasi-parallel to the laser light source from a linear array of light deflection angle, into the convergent lens group along the optical axis of the convergent lens group,

Converging lens group parallel rays incident on the transmission type projection front surface converging to a focal length of the fluorescent ceramics as a light spot,

The wavelength of the light spot is a single blue spot, said transmission type fluorescent ceramic irradiated thereon the front blue wavelength light into a single composite wavelength as a white light, and outputs the back surface of said fluorescent ceramic,

The shape of the back surface of the white phosphor ceramic spot its front converged laser spot shape correspondence,

Is provided with a projection lens group at the back fluorescent ceramic to be formed on the back surface of the ceramic fluorescent white spots is enlarged and projected, thereby forming the basis of the high beam type.

According to the invention an optical module High Resolution vehicle headlamps, wherein

The electronic control unit includes a deflecting mirror deflecting electrically controlled mirror, the mirror can be controlled at a micromechanical electron deflection control assembly, about an axis of rotation,

Said mirror is a reflective edge, so that the light from each original direction becomes the same direction, and enters the condenser lens group along the optical axis direction of the converging lens group.

Objective lens group laser beam combiner is characterized by multi-beam semiconductor laser light parallel to each other produced by the beam combiner lens group, a converging size is designed in a certain distance, and the smaller light spot. Their work is, light emitted from the semiconductor laser, is mounted through the front of the collimator lens, the light is collimated into parallel light straight through the reflection prism, such that the original light from the opposite direction becomes the same direction, and along the converging enters the optical axis direction of the lens group converging lens group, a lens group converging the parallel light incident on the projection lens group through out the whole beam spot, a white spot is temporarily by human visual fine vertical linear speed reciprocating linear motion left effect achieved, then that particular moment are projected out of the enlarged fine white vertical linear light spot relative to the entire persistence formed on a rectangular illumination spot are known.

According to the invention an optical module High Resolution vehicle headlamps, wherein

The reflecting prism having four reflective surfaces, the normal line perpendicular to the rotation axis of the reflection surface,

The reflecting prism reflecting surface in the normal high-speed reciprocating swing about the shaft, the electronic control within the specified micromechanical rotation angle range of deflection assembly, a reciprocating scanning line is formed.

According to the present invention, an optical module for High Resolution vehicle headlamp, characterized in that said spot shape as a vertical linear fine light spot, the light spot is smaller than the transverse dimension of 0.3mm.

A laser light source array group comprises multiple high-power semiconductor laser element and the blue light is mounted, the heat sink.

According to the invention an optical module High Resolution vehicle headlamp, wherein said reflector is a prism side surfaces of the square cross-section cylinder, four sides of the square formed by the four sides adjacent stretch coated with a highly reflective coating, which is 450 ± 20nm reflectance ≥98%.

According to the present invention, the electronic control assembly is a micromechanical electrostatic deflection field control or drive.

According to the invention an optical module High Resolution vehicle headlamps, wherein

Fluorescent light spot formed on the front surface of the transmissive ceramic as a vertical linear fine light spot,

To form the corresponding linear a thin white vertical transmission type fluorescent spots on the back surface of the ceramic,

When the mirror is reciprocally rotated at a high speed controlled by the vertical linear fine fluorescent spots are ceramic, the electronic control along a micromechanical rotation shaft deflection assembly vertically linear speed reciprocating movement back and forth, i.e. scanning,

Formed on the back surface of the ceramic phosphor, corresponding to a fine linear vertical white spots for the corresponding high-speed reciprocating movement back and forth, left a white spot with a visual effect of the temporary,

A projection lens group disposed on the back surface of the ceramic phosphor, the phosphor is formed on the back surface of the ceramic, with the persistence of vision of white spots magnified and projected to form a white rectangular beam enlarged to form a base type beam light, provide basic auto high beam illumination.

Face of the fluorescent ceramic is provided with a projection lens group to the persistence of the phosphor ceramic back surface formed by the visual effect of magnifying and projecting out white spots, when projected on a screen some distance, since the effect of persistence of vision, a still enlarged white rectangular beam, thereby forming the basis of the high beam type.

According to the invention for High Resolution vehicle headlamp optical module, wherein the transmission through a projection lens group, or projected in front of the mask at an angle having a maximum lateral projection persistence of vision white spot light domain ± 10 ° ~ ± 40 °.

According to the present invention, the white spot in the maximum lateral projection angle ± 10 ° ~ ± 40 °, i.e. each around 10-40 °, i.e., a total viewing angle 20-80 °.

According to the invention for High Resolution vehicle headlamp optical module, wherein the transmission out through the projection lens group having white spots persistence of vision maximum lateral angle of ± 15-25 °, i.e., left and right 15-25 °, i.e., a total viewing angle 30-50 °.

According to the present invention, it is preferable that, out of the transmission through the projection lens group having a persistence of vision of the white spot at the maximum lateral angle ± 10 ° ~ ± 20 °, i.e. each around 10-20 °, i.e., 20-40 total angle of view °.

According to the present invention, it is preferable that, out of the transmission through the projection lens group having a persistence of vision of the white spot at the maximum lateral angle of ± 20 °, i.e. each around 20 °, i.e. total angle of view 40 °.

According to the invention an optical module High Resolution vehicle headlamps, wherein

The electrically controlled deflecting mirror unit passes through to the projection lens group has a maximum lateral angle persistence of vision divided white spot,

Thereby, the mirror is reciprocally rotated at a high speed controlled, said vertical linear fine light spot on the phosphor ceramic high speed while moving back and forth reciprocally, real-time sensing the deflection angle of the mirror of a particular time, i.e., real time responses to a particular vertical white the position of the spot to scan fine linear,

Thus, at any particular position off the laser spot during the scan on the fine linear vertical white form a thin white vertical linear dark area at a particular time.

According to the invention an optical module High Resolution vehicle headlamps, wherein

The electrically controlled transmission deflecting mirror unit out of the projection lens group having a maximum lateral projection angle persistence of vision of the white spots is 16 bits (bit) divide.

According to the invention for High Resolution vehicle headlamp optical module, wherein the electrically controlled transmission deflecting mirror unit out of the projection lens group having a maximum lateral projection angle persistence of vision will be white spots 16 bits (bit) is divided, in terms of the eventual total lateral projection spot case is 40 °, the angular resolution which can reach 40 ° / 16 bits (bit), i.e., 0.0001 °.

The electrically controlled transmission deflecting mirror unit out of the projection lens group having a maximum lateral projection angle persistence of vision of the white spots by 16 bits (bit) is divided into 65535 parts, if the total lateral angle of projection of the final spot is 40 °, the angular resolution up to 40 ° / 65000≈0.0001 °

That is, according to the present invention, the electronic control unit may employ deflecting galvanometer mirror device, the illumination range, i.e. the maximum lateral projection angle 16bit is divided into parts, which is the total angular resolution illumination angle / 16bit, 40 °, according to each case , which may be wider angular resolution may be narrower.

Thus, according to the present invention, at an arbitrary position off the laser spot scanning process fine linear vertical white on a dark region can be formed having a certain angular resolution.

The present invention also provides a method of controlling a high-resolution illumination lamp far, high resolution beam lighting control method aspect of the present invention is as follows:

High Resolution beam illumination control method using the above-described vehicle headlamps high resolution optical module, wherein,

And electronic control means using probe deflection assembly micromechanical background control circuit and driver software, the transmission is set by the projection lens group, or projected onto the front of the mask at an angle having a maximum lateral projection white spots persistence of vision in the optical domain ± 5 ° ~ ± 40 ° and the mirror angle zero state at the time of high-speed reciprocating deflection,

Of the car in front of the laser beam scanning, we found the other participants on the road and need to be judged when the high beam light type of shielding, the scanning spot on the road with other participants through correspondence shall be shielded high beam light type when the position off the laser, the calculated time of the back surface of the phosphor ceramic fine white spots linearly in a specific angular position of the large rectangle of white spots formed by the persistence of vision, at a particular time to form a high beam light within a desired type white fine vertical linear dark region.

The lighting control method of the present invention provides a high-resolution far, wherein the electrically controlled transmission deflecting mirror unit out of the projection lens group having a maximum lateral projection angle persistence of vision will be white spots 16 divided bit (bit) of.

The lighting control method of the present invention provides a high-resolution away, characterized in that the total angle of lateral projection of the spot in the final 40 ° of the case that the angular resolution up to 40 ° / 16 bits ( 'bit), i.e., 0.0001 °. The maximum lateral projection angle of ± 40 ° (i.e. each about 10-40 °) of the case, the fine white vertical straight off the laser spot at any position on the scanning process, and form a dark area 0.0001 °.

Thereby, the mirror is reciprocally rotated at a high speed controlled, said vertical linear fine light spot on the phosphor ceramic high speed while moving back and forth reciprocally, real-time sensing the deflection angle of the mirror of a particular time, i.e., real time responses to a particular vertical white position to the linear fine light spot scanning process.

Thus, at any particular position off the laser spot during the scan on the fine linear vertical white form a thin white vertical linear dark area at a particular time.

The lighting control method of the present invention provides a high-resolution far, wherein, converge on the fluorescent ceramic can be spot lateral width 0.3mm or less.

According to the present invention, the electronic control unit is constituted by a deflecting mirror and the mirror electronic control micromechanical deflection assembly. Electronic control micromechanical electrostatic deflection assembly may be driven, the magnetic field may be controlled, the aim is to obtain a fast external electrical control signals about the shaft to rotate by the reciprocating mechanical force. In the high-speed reciprocating rotation, in which any particular time relative to the rotation shaft angular null state can be accurately measured, and from time to time feedback to an external circuit. Mirror attached to the electronic control micromechanical rotation shaft deflection assembly, the rotary shaft perpendicular to the normal line of the reflection surface. The mirror may be controlled in the electronic component micromechanical deflection control, rotation about an axis, and the characteristics of the electronic control micromechanical deflection assembly are normal to the reflecting surface of the high-speed reciprocating swing about the shaft, the electronic control micromechanical deflection assembly within the limits prescribed rotation angle range of the line segment formed in a reciprocating scanning. 5, FIG. 7 to FIG 7-3.

The electronic control unit deflecting mirror disposed in a mirror of the laser beam combining means convergent light path is formed so that the convergent light path through the reflection mirror, and is reflected to a new convergence point position. When the mirror oscillate back and forth at high speed electronic drive control micromechanical deflection assembly, the position of convergence of the light spot is constantly back and forth movement or scanning, is a straight line (arc). 5, FIG. 7 to FIG 7-3. Meanwhile, the position of the convergence spot at a particular time of high-speed reciprocating scanning process, when the rotation shaft may be located a certain angle, the electronic control components and the background micromechanical deflection control circuit and driver software that is calculated, and recorded.

Converging the laser spot at the fluorescent ceramic is disposed. Transmission type fluorescent ceramic object in that its face irradiating single wavelength light into a blue compound as a white wavelengths of light output in the back fluorescent ceramic, and the shape of the back of the white phosphor ceramic spot of laser beam is converged spot its front shape eleven correspond.

Converging the laser spot is designed to form a linear vertical fine spot, thus forming a thin white vertical linear spot is the back surface of a transmission type corresponding fluorescent ceramic. When the high-speed reciprocating rotary mirror controlled, also the laser spot on the phosphor ceramic with high-speed reciprocating along a straight line perpendicular to the back and forth displacement of the electronic control micromechanical rotation shaft deflection assembly (scanning), and the back surface of the ceramic phosphor converted from white spots also corresponding movement. Persistence of vision characteristics, the white spots when the reciprocating displacement speed is fast enough, the human eye can see a rectangular beam is formed on the back surface of the white fluorescent ceramic. As shown in FIG. The vertical length of the vertical height of the fine linear spot formed by the laser spot in the back of the phosphor ceramic decisions, and the width of the spot defined by the electronic control micromechanical rotation angle range determining deflection assembly.

External circuitry and software that may from time to time a large mirror at high speed bidirectional deflection angle relative to the zero state, the linear fine white spots on the back of the ceramic phosphor particular time, as described above in the persistence of vision is formed by a white rectangular beam is in the specific location can be obtained by simple calculation.

A projection lens group disposed on the back fluorescent ceramic, it is an object, the persistence of the back surface of the ceramic phosphor white spots formed by the visual projection zoom out, when projected on a screen some distance, since the effect of persistence of vision, still is an enlarged white rectangular beam, high beam type, provided the basic vehicle to form a high beam illumination function basis. As shown in FIG.

The foregoing reasoning can be obtained, a projection lens group through out the entire beam spot, white spot by human visual fine vertical linear speed reciprocating linear motion persistence of the implement, then the particular time is projected out of the amplified white fine vertical linear light spot relative to the entire persistence formed on a rectangular illumination spot are known.

The electrically controlled deflection maximum rotation angle of the mirror unit resolution can be achieved. For example, the final transmission out through the projection lens group spot maximum lateral angle is ± 20 °, a dimensional electric deflecting mirror unit may be the angular range is divided parts, the real-time responses to a particular timing mirror deflected in the angle, i.e. after projection large rectangular beam formed by the visual persistence of the effect of constantly fine transverse vertical reciprocating scanning spot in the linear or angular position, the angular resolution of its 40 ° / = 0.001 °. At an arbitrary position off the laser spot during the scan on the fine linear vertical white form a particular dark area. That is, the new intelligent headlight module described in the present invention can theoretically provide a dark area 0.001 °, far more than the prior art solutions.

Cameras using the probe tool, find other players on the road, and determines its position with respect to the vehicle we need to be shielded high beam light type, as long as when the continuous reciprocating scanning the laser beam in the scanning spot passes the road other participants closed position corresponding to laser beam light to form the desired type of the partial light shielding pattern. 9 shown in FIG.

Effect of the Invention

According to the present invention, a blue semiconductor laser array; laser beam combiner device; electrically controlled deflecting mirror means; transmission type fluorescent ceramic, and a projection lens group, creating a new lamp illumination optics module design, provided one implementation, glare-free high-resolution adaptive optical beam solution.

According to the present invention, the creative use of an electronic control program micromechanical deflection assembly, such as galvanometer, the MEMS devices and the like, in the high-speed reciprocating scanning transmission fluorescent ceramic obtained utilizing show the persistence of human vision to realize broad spot, and since the real displacement angle characteristics of the electronic control micromechanical deflection assembly knowable, broadening the light beam spot to reach a high angular resolution. After the transmission is converted into white light fluorescent ceramic, after the projection lens group and is emitted out, the aforementioned properties are retained intact.

According to the present invention, using a convergence characteristics of the laser spot size can be very small (the lateral width converging spot on the fluorescent ceramic can be easily 0.3mm or less), the final spot projected out to the front of the actual lateral angular resolution 0.05 ° or less can be achieved .

For example, according to a simple calculation shows that, at an irradiation distance of 400 meters, the minimum dark areas of the system of the present invention is tan0.05 ° X 400 = 0.35 meters can be achieved only mask the target vehicle cockpit, while the other space remains for illumination, the driver of the vehicle so that the target will not be far from the dazzling light of our vehicle, and the target vehicle position is removed outside the cockpit, the other parts can still be lit my Fangyuan Guang ensure that our driver's stars the first time found the target vehicle, compared to existing solutions greatly enhance the performance of the ADB system.

BRIEF DESCRIPTION

Figure 1 is a perspective view of an automobile headlight optical module INVENTION A high resolution. Optical design structure comprises a laser light source array, a laser beam combiner lens group, the electronic control unit deflecting mirror, a fluorescent ceramic, a projection lens group.

FIG 2 High Resolution vehicle headlamp exploded diagram of main parts of the optical module of the present invention.

A schematic view of laser optics modules Working lens group 3 of the present invention. FIG beam combiner.

FIG. 4-1, 4-2 deflection mirror electrically controlled front view and a perspective view of the unit of the present invention, respectively.

The mirror 5 is swung back and forth at high speed electronic drive control micromechanical deflection assembly, the position of convergence of the light spot is constantly moving back and forth or scanning trajectory is a schematic view of a line (arc).

FIG 6 is a schematic view of a projection lens group.

FIG. 7-1, FIG. 7-2 is also a laser spot on the phosphor ceramic high-speed reciprocating along a line perpendicular to the electronic control micromechanical rotation shaft deflection assembly fro linear displacement (scan), the back surface of the ceramic phosphor converted from white spots corresponding movement also FIG.

Figure 7-3 is a reciprocating scanning the laser beam continuously, a rectangular beam is formed on the back surface of the white phosphor ceramic reflector about the shaft at a high speed reciprocating rotation, the reflected laser light to do high-speed reciprocating swinging, persistence of vision characteristics, the fluorescent ceramic forming a back surface of a white rectangular beam. In the laser is turned off after scanning spot when other participants on the road corresponding to the position of the beam light to form the desired type of the partial light shielding type of FIG.

8, FIG. 9 is a schematic view of the present invention are an effect of the optical module car headlight high resolution. Figure 8

Shows persistence of vision characteristics, forming a rectangular beam white fluorescent ceramic back surface. Via a projection lens

Group A white rectangular beam having persistence characteristics on the screen.

Figure 9 shows the figure, 1 is a laser light source array, a laser beam combiner 2 lens group, a collimator lens group 3, group 4 as a projection lens, 5 an electrically controlled deflecting mirror unit 6 is a fluorescent ceramic, 7 convergent lens group, a reflection prism 8, a collimator lens group 9, 10 is a converging laser spot. A is a screen, B is rectangular beam, C is the oncoming vehicle on a road, spot D is the scanning process, the scanning spot persistence of vision characteristics after the formation of the image, E is under electronic control system, when a one-dimensional electric deflecting when the mirror is deflected to the mirror unit shielding required angular range, i.e., a laser light source off a dark region required width. F represents a specific time scanning position of the spot is located. G represents a single arrows in the scanning process, the fine vertical linear spot (spot scan) in the translation direction.

detailed description

Example

High Resolution vehicle headlamp optical module, comprising: a laser light source array and a collimator lens disposed therein group, converging lens group, a projection lens group and the phosphor ceramic.

A laser light source array constituted by a semiconductor laser array, a laser light source array group comprises multiple high-power semiconductor laser element and the blue light is mounted, the heat sink.

Disposed in the light source array direction of the laser beam combiner laser lens group, the light ray emitted from the array laser light source collimated into parallel light. Laser beam combiner lens group in light direction after the electric control unit deflecting mirror, a parallel collimated light from the laser array light deflection angle, into the converging lens group along the optical axis direction of the converging lens group. Parallel rays projected onto a transmissive fluorescent ceramic positive converging lens group converge incident on a focal spot, said transmission type fluorescent ceramic irradiated thereon the front blue wavelength light into a single composite wavelength as a white light, and the the back of said output fluorescent ceramic. The shape of the back surface of the white phosphor ceramic spot its front converged laser spot shape correspondence, the rear surface is provided with a fluorescent ceramic projection lens group to the back surface of the ceramic formed on the fluorescent white spots is enlarged and projected to form a based on high beam type.

Said electronic control unit includes a deflecting mirror electrically controlled deflecting prism, the reflecting edge may be deflected in the electronic components of the control micromechanical control, rotation about an axis, so that the light from each original direction becomes the same direction, and along the converging lens the optical axis direction enters the converging lens group group.

The reflecting prism having four reflective surfaces, the normal line perpendicular to the rotation axis of the reflection surface,

The reflecting prism reflecting surface in the normal high-speed reciprocating swing about the shaft, the electronic control within the specified micromechanical rotation angle range of deflection assembly, a reciprocating scanning line is formed.

Objective lens group laser beam combiner is characterized by multi-beam semiconductor laser light parallel to each other produced by the beam combiner lens group, a converging size is designed in a certain distance, and the smaller light spot. Their work is, light emitted from the semiconductor laser, is mounted through the front of the collimator lens, the light is collimated into parallel light straight through the reflection prism, such that the original light from the opposite direction becomes the same direction, and along the converging enters the optical axis direction of the lens group converging lens group, a lens group converging the parallel light incident on the projection lens group through out the whole beam spot, a white spot is temporarily by human visual fine vertical linear speed reciprocating linear motion left effect achieved, then that particular moment are projected out of the enlarged fine white vertical linear light spot relative to the entire persistence formed on a rectangular illumination spot are known.

According to the invention an optical module High Resolution vehicle headlamps, wherein

The spot shape is one kind of fine vertical linear spot, the light spot is smaller than the transverse dimension of 0.3mm.

The reflection prism is a square cross-section cylinder, four sides of the square formed by four adjacent sides of the stretched side surfaces coated with a highly reflective coating, which is 450 ± 20nm reflectance ≥98%.

The electronic control assembly is a micromechanical electrostatic deflection field control or drive.

Formed on the front transmission type fluorescent fine ceramic spot as a vertical linear spots are formed corresponding to a thin white vertical linear fluorescent light spot back of the transmissive ceramic. When the mirror is reciprocally rotated at a high speed controlled by the vertical linear fine fluorescent spots are ceramic, a direction perpendicular to the electronic control micromechanical rotation shaft deflection assembly linearly reciprocally moves back and forth at a high speed, i.e. scan, is formed in the the back of the fluorescent ceramics, corresponding to the vertical fine white spots for the corresponding linear high-speed reciprocating movement back and forth, left a white spot with a visual effect is temporary.

Disposed on the rear surface of ceramic phosphor projection lens group, is formed on the back surface of the ceramic phosphor having persistence of vision of the magnifying and projecting white spots, due to the effect of persistence of vision, forming an enlarged white rectangular beam, thereby forming the basis of the far bare type, provided the basic vehicle high beam illumination.

Transmitting through the projection lens group, or a projection in front of the mask at an angle having a maximum lateral projection persistence of vision of the white spot in the optical domain ± 15-25 °.

Preferably, the transmission out by the projection lens group having a persistence of vision of the white spot at the maximum lateral angle of ± 20 °.

The electrically controlled transmission deflecting mirror unit out of the projection lens group has a maximum lateral angle persistence of vision divided white spot, the electrically controlled transmission deflecting mirror unit out of the projection lens group having a persistence of vision white spot maximum lateral projection angle divided 16bit, the angular resolution up to 40 ° / 16bit, i.e., 0.0001 °.

That is, according to the present invention, the electronic control unit may employ deflecting galvanometer mirror device, the illumination range, i.e. the maximum lateral projection angle 16bit is divided into parts, which is the total angular resolution illumination angle / 16bit, 40 °, according to each case , which may be wider angular resolution may be narrower.

Thus, according to the present invention, at an arbitrary position off the laser spot scanning process fine linear vertical white on a dark region can be formed having a certain angular resolution. The maximum lateral projection angle of ± 20 ° of the case, an arbitrary position off the laser fine linear vertical white spot on the scanning process, and form a dark area 0.001 °.

Using cameras and electronic control probe tool assembly background micromechanical deflection control circuit and driver software, the transmission is set by the projection lens group having a persistence of vision of the white spot at the maximum lateral projection angle ± 20 ° and a mirror in a high speed zero state when the angle of the reciprocating deflection.

When the laser beam scanning forward, find other players on the road (e.g. oncoming vehicles), the need to be determined beam light shielding type, the scanning spot through the other participants on the road corresponding shall shield when the laser beam light type closed position, the calculated angular position of the specific fine white large rectangular beam spots linearly back surface of the white ceramic phosphor persistence time by the visual effect is formed, to form the desired type of inner beam light a dark area at a particular time a fine white vertical rectilinear.

Converge on the phosphor ceramic lateral width of 0.3mm or less may be spot, projection lamp to the front of the light spot of the transverse field actual angular resolution of 0.05 ° or less can be achieved.

According to the present invention, the high resolution dark region formed vehicle headlamp can achieve the size of the other head of the driver at different positions, other space remains high intensity illumination when there is no target, so that the driver does not cause other dazzling.

Claims (14)

  1. High Resolution vehicle headlamp optical module, comprising: a laser light source array and a collimator lens disposed therein group, converging lens group, a projection lens group and the fluorescent ceramic, wherein
    A laser light source array constituted by a semiconductor laser array,
    Disposed in the light source array direction of the laser beam combiner laser lens group, the light ray emitted from the array laser light source collimated into parallel light,
    Laser beam combiner lens group in light direction setting unit with an electrically controlled mirror deflection, the quasi-parallel to the laser light source from a linear array of light deflection angle, into the convergent lens group along the optical axis of the convergent lens group,
    Converging lens group parallel rays incident on the transmission type projection front surface converging to a focal length of the fluorescent ceramics as a light spot,
    The wavelength of the light spot is a single blue spot, said transmission type fluorescent ceramic irradiated thereon the front blue wavelength light into a single composite wavelength as a white light, and outputs the back surface of said fluorescent ceramic,
    The shape of the back surface of the white phosphor ceramic spot its front converged laser spot shape correspondence,
    Is provided with a projection lens group at the back fluorescent ceramic to be formed on the back surface of the ceramic fluorescent white spots is enlarged and projected, thereby forming the basis of the high beam type.
  2. High Resolution vehicle headlamp 1 of the optical module as claimed in claim, wherein,
    The electronic control unit includes a deflecting mirror deflecting electrically controlled mirror, the mirror can be controlled at a micromechanical electron deflection control assembly, about an axis of rotation,
    Said mirror is a reflective edge, so that the light from each original direction becomes the same direction, and enters the condenser lens group along the optical axis direction of the converging lens group.
  3. High Resolution 2 The vehicle headlamp optical module as claimed in claim, wherein,
    The reflecting prism having four reflective surfaces, the normal line perpendicular to the rotation axis of the reflection surface,
    The reflecting prism reflecting surface in the normal high-speed reciprocating swing about the shaft, the electronic control within the specified micromechanical rotation angle range of deflection assembly, a reciprocating scanning line is formed.
  4. As claimed in claim 1 or 2 High Resolution vehicle headlamp optical module, wherein the spot shape of one kind of fine vertical linear spot, the light spot is smaller than the transverse dimension of 0.3mm.
  5. The two claimed in claim 3 as an optical module for High Resolution vehicle headlamp, wherein said reflector is a four-sided prism of square cross-section cylinder, four sides of the square formed by stretching adjacent each side surface coated with a highly reflective coating, which is 450 ± 20nm reflectance ≥98%.
  6. High Resolution vehicle headlamp 1 of the optical module as claimed in claim, wherein,
    Fluorescent light spot formed on the front surface of the transmissive ceramic as a vertical linear fine light spot,
    To form the corresponding linear a thin white vertical transmission type fluorescent spots on the back surface of the ceramic,
    When the mirror is reciprocally rotated at a high speed controlled by the vertical linear fine fluorescent spots are ceramic, the electronic control along a micromechanical rotation shaft deflection assembly vertically linear speed reciprocating movement back and forth, i.e. scanning,
    Formed on the back surface of the ceramic phosphor, corresponding to a fine linear vertical white spots for the corresponding high-speed reciprocating movement back and forth, left a white spot with a visual effect of the temporary,
    Disposed on the rear surface of ceramic phosphor projection lens group, is formed on the back surface of the ceramic phosphor having persistence of vision white spots magnified and projected to form a white rectangular beam enlarged to form a base type beam light.
  7. High Resolution vehicle headlamp 1 of the optical module as claimed in claim, characterized in that group is transmitted through a projection lens, the projection on the mask at the front left or white spots with a visual effect temporary domain light angle the maximum lateral projection at ± 10 ° ~ ± 40 °.
  8. 7 High Resolution vehicle headlamp optical module as claimed in claim, characterized in that the transmission through the projection lens group out of the maximum lateral angle of white spots having a visual effect temporary stay in ± 15-25 °, i.e. about each of 15-25 °, i.e., a total viewing angle 30-50 °.
  9. 7 High Resolution vehicle headlamp optical module as claimed in claim, wherein,
    The electrically controlled deflecting mirror unit passes through to the projection lens group has a maximum lateral angle persistence of vision divided white spot,
    Thereby, the mirror is reciprocally rotated at a high speed controlled, said vertical linear fine light spot on the phosphor ceramic high speed while moving back and forth reciprocally, real-time sensing the deflection angle of the mirror of a particular time, i.e., real time responses to a particular vertical white the position of the spot to scan fine linear,
    Thus, at any particular position off the laser spot during the scan on the fine linear vertical white form a thin white vertical linear dark area at a particular time.
  10. 8 or 9 High Resolution vehicle headlamp optical module as claimed in claim, wherein,
    The electrically controlled transmission deflecting mirror unit out of the projection lens group having a maximum lateral projection angle persistence of vision of the white spots is 16 bits (bit) divide.
  11. The claimed in claim 10 as an optical module for High Resolution vehicle headlamps, wherein
    The electrically controlled transmission deflecting mirror unit out of the projection lens group having a maximum lateral projection angle persistence of vision of the white spots is 16 bits (bit) is divided, in the final total lateral angle of projection of the spot 40 ° case, the angular resolution which can reach 40 ° / 16 bits ( 'bit), i.e., 0.0001 °.
  12. High Resolution beam illumination control method, high-resolution optical module of an automobile headlight according to any one of claims 1-10 use, wherein,
    And electronic control means using probe deflection assembly micromechanical background control circuit and driver software, the transmission is set by the projection lens group, or projected onto the front of the mask at an angle having a maximum lateral projection white spots persistence of vision in the optical domain ± 5 ° ~ ± 40 ° and the mirror angle zero state at the time of high-speed reciprocating deflection,
    Of the car in front of the laser beam scanning, we found the other participants on the road and need to be judged when the high beam light type of shielding, the scanning spot on the road with other participants through correspondence shall be shielded high beam light type when the position off the laser, the calculated time of the back surface of the phosphor ceramic fine white spots linearly in a specific angular position of the large rectangle of white spots formed by the persistence of vision, at a particular time to form a high beam light within a desired type white fine vertical linear dark region.
  13. High Resolution beam 12 illumination control method as claimed in claim, wherein the electrically controlled transmission deflecting mirror unit out of the projection lens group having a maximum lateral projection angle persistence of vision will be white spots divided into 16 bits (bit) of.
  14. The beam 13 High Resolution illumination control method as claimed in claim, characterized in that the total angle of lateral projection of the spot in the final 40 ° of the case that the angular resolution up to 40 ° / 16 bits (bit) , i.e., 0.0001 °.
PCT/CN2017/074200 2016-11-04 2017-02-21 High resolution automobile headlight optical module and high resolution high beam illumination control method therefor WO2018082224A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201610962328.0 2016-11-04
CN 201621186909 CN206176233U (en) 2016-11-04 2016-11-04 High resolution car headlight optical modulex
CN201621186909.1 2016-11-04
CN 201610962328 CN106500039A (en) 2016-11-04 2016-11-04 High-resolution automobile headlamp optical module and high-resolution high beam illumination control method thereof

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WO2018082224A1 true true WO2018082224A1 (en) 2018-05-11

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102939500A (en) * 2010-05-12 2013-02-20 欧司朗有限公司 Headlight module
JP2013101985A (en) * 2013-03-07 2013-05-23 Koito Mfg Co Ltd Headlight for vehicle
CN103574473A (en) * 2012-07-27 2014-02-12 法雷奥照明公司 Adaptive lighting system for an automobile
CN104344308A (en) * 2013-07-30 2015-02-11 法雷奥照明公司 Lighting system with improved scanning means
CN105276479A (en) * 2014-06-03 2016-01-27 中强光电股份有限公司 Illumination apparatus for vehicle
WO2016042052A1 (en) * 2014-09-19 2016-03-24 Automotive Lighting Reutlingen Gmbh Laser headlight with a movable light-deflecting element
WO2016172747A1 (en) * 2015-04-27 2016-11-03 Zkw Group Gmbh Method for controlling a light scanner in a headlamp for vehicles

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102939500A (en) * 2010-05-12 2013-02-20 欧司朗有限公司 Headlight module
CN103574473A (en) * 2012-07-27 2014-02-12 法雷奥照明公司 Adaptive lighting system for an automobile
JP2013101985A (en) * 2013-03-07 2013-05-23 Koito Mfg Co Ltd Headlight for vehicle
CN104344308A (en) * 2013-07-30 2015-02-11 法雷奥照明公司 Lighting system with improved scanning means
CN105276479A (en) * 2014-06-03 2016-01-27 中强光电股份有限公司 Illumination apparatus for vehicle
WO2016042052A1 (en) * 2014-09-19 2016-03-24 Automotive Lighting Reutlingen Gmbh Laser headlight with a movable light-deflecting element
WO2016172747A1 (en) * 2015-04-27 2016-11-03 Zkw Group Gmbh Method for controlling a light scanner in a headlamp for vehicles

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