CN107420825B - Intelligent high beam illumination optical module and intelligent high beam illumination optical unit - Google Patents

Intelligent high beam illumination optical module and intelligent high beam illumination optical unit Download PDF

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Publication number
CN107420825B
CN107420825B CN201710888736.0A CN201710888736A CN107420825B CN 107420825 B CN107420825 B CN 107420825B CN 201710888736 A CN201710888736 A CN 201710888736A CN 107420825 B CN107420825 B CN 107420825B
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high beam
optical module
intelligent high
led
led light
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CN201710888736.0A
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CN107420825A (en
Inventor
杨珏晶
张洁
樊露青
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HASCO Vision Technology Co Ltd
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HASCO Vision Technology Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
    • F21W2102/10—Arrangement or contour of the emitted light
    • F21W2102/13—Arrangement or contour of the emitted light for high-beam region or low-beam region
    • F21W2102/135—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions
    • F21W2102/14—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions having vertical cut-off lines; specially adapted for adaptive high beams, i.e. wherein the beam is broader but avoids glaring other road users
    • F21W2102/145—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions having vertical cut-off lines; specially adapted for adaptive high beams, i.e. wherein the beam is broader but avoids glaring other road users wherein the light is emitted between two parallel vertical cutoff lines, e.g. selectively emitted rectangular-shaped high beam
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

The invention relates to an intelligent high beam lighting optical module and an intelligent high beam lighting optical unit, wherein the optical module comprises a free-form surface reflecting mirror, an LED circuit board and an LED chip control module which are relatively fixed, one or more LED light sources are electrically connected and installed on the LED circuit board, the brightness of each LED light source is respectively and independently controlled by the LED chip control module, the reflecting mirror has a diffusion angle in the up-down direction and a diffusion angle in the left-right direction, each LED light source forms an elongated vertical strip-shaped light spot through the projection of the reflecting mirror, and when a plurality of LED light sources exist, the LED light sources are arranged in a line in the left-right direction; the optical unit comprises a plurality of optical modules which are staggered and overlapped with each other to form a bright-dark resolution area smaller than that of a single LED image. The invention realizes a matrix type high beam lighting module and can realize intelligent high beam lighting with the imaging resolution capability smaller than that of an LED.

Description

Intelligent high beam illumination optical module and intelligent high beam illumination optical unit
Technical Field
The invention relates to an optical solution of matrix intelligent high beam, in particular to an optical module and an optical unit for imaging an LED through a free-form surface reflector and carrying out different collocations and combinations on the LED image, belonging to the technical field of car lamp illumination.
Background
With the development of car light illumination technology, the illumination requirement of people on car lights is higher and higher, and a common high beam system cannot meet the safety illumination requirement under complex road conditions. Under the condition that two vehicles meet, the high beam can cause serious dazzling conditions of opposite drivers, and under the condition of following vehicles, the rear vehicle can also form interference to the driver of the front vehicle if the high beam is started.
Disclosure of Invention
In order to solve the problems, the invention provides an intelligent high beam illumination optical module and an intelligent high beam illumination optical unit, which realize safe illumination under complex road conditions by adopting matrix high beam capable of being turned off locally.
The main technical scheme of the invention is as follows:
the utility model provides an intelligent high beam lighting optical module, includes free-form surface speculum, LED circuit board and the LED chip control module of relative fixed, the electricity is connected on the LED circuit board and is installed one or more LED light sources, the light and shade of every LED light source is independently controlled by respectively LED chip control module, free-form surface speculum has diffusion angle in the upper and lower direction, the reflector of taking diffusion angle in the left and right directions, every LED light source passes through free-form surface speculum throws and forms an elongated vertical bar facula, when having a plurality of LED light sources, a plurality of LED light sources are arranged along a left and right directions word.
The free-form mirror may have a focal length between 25mm and 35 mm.
The number of LED light sources is preferably greater than or equal to 3.
The intelligent high beam lighting optical module can further comprise a radiator, and the LED circuit board, the LED chip control module and the free-form surface reflecting mirror are all installed on the radiator.
The intelligent high beam lighting optical module can further comprise a fixing and adjusting device, and the radiator is fixedly connected with the fixing and adjusting device.
The intelligent high beam lighting optical unit comprises a plurality of intelligent high beam lighting optical modules, at least one of the intelligent high beam lighting optical modules is a reference optical module, the reference optical module is arranged in a direction that the projection direction of a reflecting mirror and the X-axis positive included angle of a vehicle body coordinate system are zero degrees, the other intelligent high beam lighting optical modules are arranged at positions which rotate around respective vertical axes of the reference optical modules by different angles relative to the reference optical module, so that the projection direction of the reflecting mirror and the X-axis positive included angle of the vehicle body coordinate system are not zero degrees, and the vertical axes are parallel to the Z axis of the vehicle body coordinate system.
The angle of rotation of the intelligent high beam illumination optical module except the reference optical module around the vertical axis relative to the reference optical module is different, or a part of the angle is the same, and a part of the angle is different.
The angle of the intelligent high beam illumination optical module except the reference optical module, which is rotated around the vertical axis relative to the reference optical module, is an integral multiple of the left and right diffusion angle of the minimum designed dark area.
The angle through which the intelligent high beam illumination optical module except the reference optical module rotates around the vertical axis relative to the reference optical module is an integral multiple of 0.5 degrees.
The beneficial effects of the invention are as follows:
the intelligent high beam illumination optical units provide a physical basis for improving the resolving power through the arrangement mode that all intelligent high beam illumination optical modules are staggered and overlapped with each other, and the intelligent control of the on and off of LEDs is assisted, so that the dark region resolving power which is far higher than that of the intelligent high beam illumination optical modules can be realized by switching off the LED light sources in different optical modules to realize the dark region resolving power which is smaller than that of a single LED when the single LED is switched off. As long as the quantity of the LED light sources is enough, the safety illumination requirement under complex road conditions can be conveniently realized by independently controlling the brightness of each LED light source.
Drawings
FIG. 1 is a schematic longitudinal cross-sectional view of an embodiment of the intelligent high beam lighting optical module;
FIG. 2 is a schematic perspective view of an embodiment of the freeform mirror;
FIG. 3 is a schematic illustration of a spot formed by a single LED light source through a freeform reflector;
FIG. 4 is a schematic view of spots formed by 5 LED light sources arranged in sequence in the transverse direction through a free-form surface reflector;
FIG. 5 is a schematic diagram of one embodiment of the intelligent high beam illumination optical unit;
FIG. 6 is a comparison diagram of the light spot arrangement when four intelligent high beam illumination optical modules are arranged in a staggered manner;
fig. 7 is a light spot effect diagram of four intelligent high beam lighting optical modules in a staggered arrangement networking lighting state;
FIG. 8 is a comparison diagram of the spot arrangement of the intelligent high beam illumination optical module after turning off a portion of the LED light sources;
fig. 9 is a light spot effect diagram of the intelligent high beam illumination optical unit after turning off a portion of the LED light sources.
Detailed Description
The invention discloses an intelligent high beam lighting optical module (optical module for short), which is shown in fig. 1 and comprises a free-form surface reflecting mirror 2, an LED circuit board and an LED chip control module 3 which are relatively fixed, wherein one or more LED light sources 4 are electrically connected and installed on the LED circuit board, each LED light source is connected with one path of control circuit of the LED chip control module, and the brightness of each LED light source is independently controlled by the LED chip control module. As shown in fig. 2, the free-form surface mirror is a mirror with a diffusion angle in the up-down direction and without a diffusion angle in the left-right direction. Each LED light source forms an elongated vertical stripe light spot by projecting through the free-form surface reflector, and the vertical stripe light spot is a combined image formed by overlapping a series of LED chip images which are longitudinally arranged and partially overlapped, as shown in fig. 3. The LED chip control modules may be provided independently, or may be connected to the LED circuit board, where the latter case is adopted in fig. 1. When a plurality of LED light sources exist, the LED light sources are arranged in a line along the left-right direction. The setting angle of the LED light source relative to the reflector is an angle for ensuring that the emitted light rays can be emitted to the right front after being reflected by the free-form surface reflector.
The focal length of the freeform mirror may be in the range of 25mm-35 mm.
The number of the LED light sources can be determined according to practical needs, for example, the number of the LED light sources can be greater than or equal to 3, preferably greater than or equal to 5, and can be increased or decreased according to different resolving powers.
The intelligent high beam lighting optical module can further comprise a radiator 5, and the LED circuit board, the LED chip control module and the free-form surface reflecting mirror are all installed on the radiator.
The intelligent high beam lighting optical module can further comprise a fixing and adjusting device 6, and the radiator is fixedly connected with the fixing and adjusting device. The fixing and adjusting device is used for achieving fixing and position adjustment of the intelligent high beam lighting optical module relative to the lamp body.
Fig. 4 shows spots formed by projecting 5 LED light sources arranged in a straight line in the left-right direction through a free-form surface reflector in the intelligent high beam illumination optical module.
The invention also discloses an intelligent high beam lighting optical unit (optical unit for short), which comprises a plurality of intelligent high beam lighting optical modules, at least one of which is a reference optical module, wherein the reference optical module is an optical module which is arranged in a direction that the projection direction of a reflecting mirror and the X-axis positive angle of a vehicle body coordinate system are zero degrees, and other intelligent high beam lighting optical modules are arranged at positions which rotate around respective vertical axes relative to the reference optical module by different angles, so that the projection direction of the reflecting mirror and the X-axis positive angle of the vehicle body coordinate system are not zero degrees, and the vertical axes are parallel to the Z-axis of the vehicle body coordinate system. A vertical line passing through the center of the light source of the optical module is generally taken as the vertical axis.
The angle of rotation of the intelligent high beam illumination optical module except the reference optical module around the vertical axis relative to the reference optical module is different, or a part of the angle is the same, and a part of the angle is different. The angle is not limited in size and can be set according to the high beam resolution requirement.
Since the optical modules are small, and the light spot at the front of the vehicle, for example, 25m is considered as the lighting effect, the positional relationship between the optical modules can be unlimited up, down, left, right, front and rear, or the placement position of each optical module in space is free. For example, the optical module can be arranged in a single row in the left-right direction or in a plurality of rows up and down, as long as the included angle between the projection direction of the reflecting mirror of the optical module and the positive direction of the X axis meets the above requirement, because only the angle has a larger influence on the position of the light spot under the condition of determining the focal length.
This arrangement of the optical modules is referred to herein as a staggered stack arrangement.
All optical modules in the optical unit adopt the staggered superposition arrangement mode, and under the condition that all LED light sources are lightened, partial overlapping areas exist among light spots corresponding to different optical modules. By utilizing the characteristics, when the specific LED light source in the specific optical module is turned off, a dark area with the width being narrower than the width of the light spot corresponding to the single LED light source can be obtained, which is equivalent to improving the resolution of the dark area of the whole optical unit. Therefore, when the optical units are arranged in the staggered and overlapped mode, a good physical basis is provided for improving the light and shade resolution capability. The principle of improving the resolving power of the dark space is further described below by means of a more specific embodiment of the optical unit.
As shown in fig. 5, the optical unit includes 4 intelligent high beam illumination optical modules 1a, 1b, 1c and 1d. Each intelligent high beam lighting optical module is provided with 5 LED light sources, and the design focal length is 30mm. Each LED light source can form a light spot which is spread for 2 degrees left and right, so that the minimum resolution capability of a single intelligent high beam illumination optical module is 2 degrees. It should be noted that, the left and right spreading angles of the light spots corresponding to the LED light sources can be achieved by adopting reflectors with different focal lengths to cooperate with the LED light sources, and the adjustable range is usually within 1-5 degrees.
The four intelligent high beam illumination optical modules are arranged in an angle rotation mode around respective vertical axes, for example: 1a is used as a reference optical module, and the optical module is kept in a dislocation arrangement of positive emergent light (namely, the projection direction and the X-axis positive direction of a vehicle body coordinate system form 0 degrees), 1b rotates by 0.5 degrees relative to 1a, 1c rotates by 0.5 degrees relative to 1b (rotates by 1 degree relative to 1 a), and 1d rotates by 0.5 degrees relative to 1c (rotates by 1.5 degrees relative to 1 a). The arrangement of the light spots corresponding to the four intelligent high beam lighting optical modules on the screen is staggered by 0.5 degree as shown in fig. 6, and when all the LED light sources are lightened, the light spot effect of the whole intelligent high beam lighting optical unit is shown in fig. 7. By turning off the 3 rd LED in 1a, 1b and 1c and the 4 th LED in 1d, the effect of forming a dark area and the full brightness of other areas from 0 degrees to-0.5 degrees can be achieved, as shown in FIG. 8. By analogy, the above scheme can realize the dark area resolution of 0.5 degrees between-3 degrees and 3 degrees, as shown in fig. 9, which is far higher than the resolution of 2 degrees of a single intelligent high beam illumination optical module.
The intelligent high beam illumination optical units provide a physical basis for improving the resolving power through the arrangement mode of staggered superposition of the intelligent high beam illumination optical modules, and the intelligent control of LEDs is assisted, so that the resolving power far higher than that of the intelligent high beam illumination optical modules can be realized. As long as the quantity of the LED light sources is enough, the safety illumination requirement under complex road conditions can be conveniently realized by independently controlling the brightness of each LED light source.
The angle through which the intelligent high beam illumination optical module except the reference optical module rotates around the vertical axis relative to the reference optical module is preferably an integral multiple of the left and right diffusion angle of the minimum dark area. As with the previous embodiments, it is desirable to achieve a dark field resolution of 0.5 degrees, with other optical modules preferably being rotated about the vertical axis at 0.5, 1, 1.5 degrees relative to the reference optical module.
The angle through which the intelligent high beam illumination optical module except the reference optical module rotates around the vertical axis relative to the reference optical module is preferably an integral multiple of 0.5 degrees.
The number of the intelligent high beam illumination optical modules in the optical unit is preferably 3 or more, and the intelligent high beam illumination optical modules can be increased or reduced according to different resolution requirements.

Claims (9)

1. An intelligent far-reaching headlamp optical module, its characterized in that: the LED light source module comprises a free-form surface reflecting mirror, an LED circuit board and an LED chip control module which are relatively fixed, wherein one or more LED light sources are electrically connected and installed on the LED circuit board, the brightness of each LED light source is independently controlled by the LED chip control module, the free-form surface reflecting mirror is a reflecting mirror with a diffusion angle in the vertical direction and without a diffusion angle in the horizontal direction, each LED light source forms an elongated vertical strip-shaped light spot through projection of the free-form surface reflecting mirror, and when a plurality of LED light sources exist, the LED light sources are arranged in a line along the horizontal direction.
2. The intelligent high beam lighting optical module of claim 1, wherein: the focal length of the free-form surface reflecting mirror is 25mm-35 mm.
3. The intelligent high beam lighting optical module of claim 1, wherein: the number of the LED light sources is more than or equal to 3.
4. The intelligent high beam lighting optical module of claim 1, 2 or 3, wherein: the LED chip control module comprises a free-form surface reflecting mirror, a LED circuit board, an LED chip control module and a radiator, wherein the LED circuit board, the LED chip control module and the free-form surface reflecting mirror are all arranged on the radiator.
5. The intelligent high beam lighting optical module of claim 4, wherein: the radiator is fixedly connected with the fixing and adjusting device.
6. An intelligent high beam illumination optical unit, which is characterized in that: an intelligent high beam lighting optical module according to any one of claims 1-5, at least one of which is a reference optical module, said reference optical module being arranged such that the projection direction of the mirror is at zero degree to the X-axis forward angle of the vehicle body coordinate system, and the other said intelligent high beam lighting optical modules being arranged such that the projection direction of the mirror is at a non-zero degree to the X-axis forward angle of the vehicle body coordinate system by rotating the positions of different angles about their respective vertical axes relative to said reference optical module, said vertical axes being parallel to the Z-axis of the vehicle body coordinate system.
7. The intelligent high beam lighting optical unit of claim 6, wherein: the angle of rotation of the intelligent high beam illumination optical module except the reference optical module around the vertical axis relative to the reference optical module is different, or a part of the angle is the same, and a part of the angle is different.
8. The intelligent high beam lighting optical unit of claim 7, wherein: the angle of the intelligent high beam illumination optical module except the reference optical module, which is rotated around the vertical axis relative to the reference optical module, is an integral multiple of the left and right diffusion angle of the minimum designed dark area.
9. The intelligent high beam lighting optical unit of claim 7, wherein: the angle through which the intelligent high beam illumination optical module except the reference optical module rotates around the vertical axis relative to the reference optical module is an integral multiple of 0.5 degrees.
CN201710888736.0A 2017-09-27 2017-09-27 Intelligent high beam illumination optical module and intelligent high beam illumination optical unit Active CN107420825B (en)

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Publication number Priority date Publication date Assignee Title
EP3671012A1 (en) * 2018-12-18 2020-06-24 ZKW Group GmbH Motor vehicle headlamp and lighting device for a motor vehicle headlamp
CN113701120A (en) 2020-05-22 2021-11-26 华域视觉科技(上海)有限公司 Multi-pixel far-light system, car lamp and car
CN113915542A (en) * 2020-06-23 2022-01-11 吉林省瑞中科技有限公司 Novel handheld laser signal light

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