WO2019109745A1 - 一种防眩光设备 - Google Patents

一种防眩光设备 Download PDF

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Publication number
WO2019109745A1
WO2019109745A1 PCT/CN2018/111045 CN2018111045W WO2019109745A1 WO 2019109745 A1 WO2019109745 A1 WO 2019109745A1 CN 2018111045 W CN2018111045 W CN 2018111045W WO 2019109745 A1 WO2019109745 A1 WO 2019109745A1
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WO
WIPO (PCT)
Prior art keywords
light
human eye
light blocking
glare
strong
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PCT/CN2018/111045
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English (en)
French (fr)
Inventor
石光华
Original Assignee
石光华
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Publication date
Application filed by 石光华 filed Critical 石光华
Publication of WO2019109745A1 publication Critical patent/WO2019109745A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J3/00—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles
    • B60J3/02—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles adjustable in position
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00—Measuring or testing not otherwise provided for
    • G01D21/02—Measuring two or more variables by means not covered by a single other subclass
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/02—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the intensity of light

Definitions

  • the invention belongs to the field of optical technology and relates to an anti-glare technology, in particular to an anti-glare device.
  • the current main methods include using a visor, wearing a polarizer or sunglasses, using specific glasses, using a liquid crystal light valve or an OLED display.
  • the visor can block or weaken the glare, but it also blocks or weakens the light of the road and the scene, making the driver's field of vision darker, especially in the case of weak nighttime light, which further reduces the driver.
  • Ability to observe roads and environmental objects. Wearing a polarizer or sunglasses is similar to using a visor, which weakens the glare and also diminishes the light on the road and the environment, reducing the driver's ability to observe the road and surrounding environment.
  • An object of the present invention is to provide a technique for enabling a human eye to be stimulated by strong light and capable of seeing surrounding things in a strong light environment.
  • the solution of the present invention is:
  • An anti-glare device comprising a strong light detecting device, a human eye position detecting device, a data processing device, a driving device and a light blocking device;
  • the strong light detecting device is configured to detect strong light and a direction thereof;
  • the strong light is light a light having a intensity greater than a first light intensity threshold; a first light intensity threshold being a set value;
  • the human eye position detecting device configured to detect a position of a human eye;
  • the data processing device and the strong light detecting device, the The human eye position detecting device and the driving device are both communicably connected to calculate a target position of the light blocking device according to the information detected by the strong light detecting device and the human eye position detecting device, and the target position is Transmitting to the driving device;
  • the driving device is coupled to the light blocking device to move the light blocking device to the target position;
  • the light blocking device is configured to attenuate or block glare at a target position Direct to the human eye.
  • the strong light detecting device includes a highlight detecting camera for determining a direction of the intense light by the data processing device based on a position of a spot formed by the strong light on the highlight detecting camera.
  • the anti-glare device further includes a filter device installed in front of the strong light detecting unit to filter weak light, the weak light being light having a light intensity smaller than a second light intensity threshold;
  • the light intensity threshold is a set value; preferably, the filter device is a filter; further preferably, the filter is a sunglasses.
  • the aperture value of the strong light detecting camera is a first aperture value, and the first aperture value is a set value, and the strong light detecting camera is just able to see when the aperture value of the strong light detecting camera is the first aperture value.
  • a strong light source or, the shutter speed of the strong light detecting camera is a first shutter speed value, the first shutter speed value is a set value, and the shutter speed of the highlight detecting camera is equal to the first shutter speed value
  • the glare detection camera is just able to see the strong light source.
  • the human eye position detecting device is a wireless positioning device; or the human eye position detecting device includes at least one human eye positioning camera to be imaged by the data processing device according to a human eye on the human eye positioning camera. Calculate the three-dimensional coordinates of the human eye.
  • the driving device includes a motor connected in sequence, a motor driver and a motor controller, the motor controller is connected to the data processing device, and the motor is connected to the light blocking device to be
  • the target position signal sent by the data processing device controls the motor driver to drive the motor to drive the light blocking device to move to a target position; preferably, the motor is a stepping motor or a servo motor.
  • the light blocking device comprises a light blocking sheet of a translucent material; or the light blocking device comprises a light blocking sheet of an opaque material.
  • the light blocking device includes at least one light blocking sheet; or the light blocking device includes at least one pair of light blocking sheets, each of the pair of light blocking sheets respectively corresponding to one human eye; preferably The light blocking device includes a plurality of pairs of light blocking sheets, each pair of light blocking sheets for shielding a strong light source.
  • the anti-glare device includes a switch, the switch is communicatively coupled to the data processing device, and the data processing device controls opening and closing of the anti-glare device according to information sent by the switch; preferably, the switch It is a remote control switch; preferably, when the anti-glare device is used on a vehicle, the switch is mounted on a steering wheel of the vehicle.
  • the anti-glare device further includes a deviation adjustment button communicatively coupled to the drive device to allow an operator to manually adjust movement of the light block by the deviation adjustment button.
  • the invention has the beneficial effects that the anti-glare device of the invention enables the human eye to be free from strong light stimulation in a strong light environment, and can still clearly see the surrounding things of the glare and avoid accidents.
  • the invention only blocks the illumination of the human eye by the strong light source in the case of blocking the strong light, and does not block the part of the non-strong light source, so the object of the non-strong light source part (for example)
  • the light of roads, passers-by, etc. is not weakened, so it does not reduce the ability of the human eye to observe other things around.
  • the observation of the dark objects by the human eye is not affected, which is beneficial to the observation of people in a weak environment. Improve user behavior and security.
  • the invention is particularly applicable to the context of driving a vehicle.
  • FIG. 1 is a schematic structural view of an anti-glare device according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural view of a light blocking sheet according to another embodiment of the present invention.
  • the invention provides an anti-glare device, and FIG. 1 shows a schematic structural view of the anti-glare device.
  • the anti-glare device includes a strong light detecting device, a human eye position detecting device, a data processing device, a driving device, and a light blocking device.
  • the strong light detecting device is for detecting strong light and its direction; the strong light is light having a light intensity greater than a first light intensity threshold; and the first light intensity threshold is a set value.
  • the human eye position detecting device is for detecting the position of the human eye.
  • the data processing device is communicably connected with the strong light detecting device, the human eye position detecting device and the driving device to calculate the target position of the light blocking device according to the information detected by the strong light detecting device and the human eye position detecting device, when the light blocking device is at The target position happens to block the direct light of the strong light to the human eye and send the target position to the driving device.
  • the driving device is coupled to the light blocking device to move the light blocking device to the target position.
  • the light blocking means is used to weaken or block the direct light of the strong light to the human eye at the target position.
  • the strong light detecting device includes a strong light detecting camera capable of detecting the presence of strong light and the direction in which it is emitted.
  • the glare is imaged as a spot on the glare detecting camera, and the data processing device determines the presence and direction of the glare based on the position of the spot formed by the glare on the glare detecting camera.
  • the highlight detecting camera faces forward (in the direction of the human eye, the direction from the human eye to the front side is the front direction described in the present application), and an ordinary camera can be used.
  • the filter device is a filter.
  • the filter is placed in front of the highlight detection camera to filter out low light and ambient stray light.
  • the filter can be selected as a darker lens, such as a sunglasses.
  • a second light intensity threshold that is, low light, such as light of an automobile low beam, light of a street lamp, etc.
  • only strong light such as light of a high beam of a car, is filtered. It is able to penetrate it and reach the spot on the glare detection camera.
  • the above object can be attained by reducing the aperture of the strong light detecting camera or increasing the shutter speed without providing a filter device.
  • the aperture of the glare detecting camera is reduced or the shutter speed is increased until the glare detecting camera can only see the extent of the light source, so that the position of the light source can be better determined.
  • the aperture value of the glare detection camera is reflected as the first aperture value, the first aperture value is the set value, and the glare detection camera just can be seen when the aperture value of the glare detection camera is the first aperture value.
  • the shutter speed of the strong light detecting camera is a first shutter speed value
  • the first shutter speed value is a set value
  • the shutter speed of the highlight detecting camera is equal to the first shutter speed value
  • the human eye position detecting device is used to determine the position and coordinates of the human eyeball, and may be implemented by a wireless positioning device; or may include a human eye positioning camera to calculate the human eye by the data processing device according to the position of the human eye on the human eye positioning camera.
  • the three-dimensional coordinates In the present embodiment, the human eye position detecting device is realized by a human eye positioning camera which images the human face.
  • the human eye position detecting device includes at least one human eye positioning camera. Specifically, a monocular camera or a multi-view camera can be employed. The position of the human eye in the picture can be identified by the current mature face recognition technology.
  • the three-dimensional coordinates of the human eye relative to the two cameras can be calculated by the difference in imaging positions of the human eye on the two cameras, thereby locating the position of the human eye.
  • the direction of the human eye relative to the camera can be known according to the position of the human eye on the camera; meanwhile, the distance between the human eye and the camera can be approximated by the average distance between the general face and the camera.
  • the distance between the human eye and the camera is a set value, and the two are combined to obtain the three-dimensional coordinates of the human eye relative to the camera.
  • the data processing device is respectively communicably connected to the strong light detecting device and the human eye position detecting device for receiving data of the strong light detecting device and the human eye position detecting device, and then calculating according to the direction of the strong light and the position coordinates of the human eye.
  • the position where the light blocking device should be located can block the direct light of the strong light to the human eye, and calculate the position coordinate of the light blocking device, that is, the target position, which is in the direction of strong light from the strong light source to the human eye.
  • the position between the positions, that is, on the line segment with the strong light source and the position of the human eye as the end point.
  • the data processing device is simultaneously in communication with the driving device, and transmits the target position coordinates of the light blocking device to the driving device. After receiving the command, the driving device moves the light blocking device to the target position.
  • the data processing device sends the target location (Px, Py, Pz) to the driving device, and can be sent by using a data bus, a serial port, an Ethernet, a Bluetooth, a wifi, etc., and the data transmission can adopt the above manner, but is not limited to the above manner.
  • Px, Py, and Pz are the coordinates of the target position on the x-axis, the y-axis, and the z-axis, respectively, based on the set x, y, and z coordinate systems.
  • a motor is used to implement the driving device.
  • the driving device comprises a motor connected in sequence, a motor driver and a motor controller.
  • the motor controller is connected with the data processing device signal, and the motor is connected with the light blocking device to be controlled by the motor controller according to the target position signal sent by the data processing device.
  • the motor driver drives the motor to move the light blocking device to the target position.
  • the motor can be a stepper motor or a servo motor.
  • the stepping motor is a special kind of motor. Each step sends a pulse to the stepping motor.
  • the stepping motor rotates one step. Using the stepping motor, the movement of the light blocking device can be precisely controlled.
  • the servo motor is a motor with feedback.
  • the motor controller can know the position of the current motor rotation, and can also be used to accurately control the movement of the light blocking device.
  • the motor controller can be realized by a single chip microcomputer or a CPU board or a programmable logic device, etc., and the motor controller is communicably connected with the data processing device, receives the target position data (Px, Py, Pz) sent by the data processing device, and outputs the control signal to The motor driver, the motor driver drives the motor to rotate, and moves the light blocking device to the target position.
  • the implementation of the driving device in this embodiment is not limited to the above, and any device capable of realizing the moving of the light blocking device to the target position can be employed.
  • the light blocking device includes a light blocking piece, which can be made of a translucent material or an opaque material to block the strong light source from hitting the human eye.
  • the light-blocking film can be made of, but not limited to, a resin lens with a deeper color, a glass lens, an acrylic lens, etc., and a translucent material can be used as a light-blocking sheet, and the blackness of the light-blocking sheet is modulated to a large extent.
  • the light is absorbed, only a small part of the light passes through the light blocking film and shines on the human eye.
  • the human eye does not feel the stimulus is appropriate, and the human eye can see the contour of the strong light source through the light blocking piece.
  • the light blocking means includes at least one light blocking sheet, and for example, only one light blocking sheet may be provided for blocking both eyes at the same time.
  • a light blocking sheet may be provided for each of the two eyes, that is, a pair of light blocking sheets are disposed, and each of the light blocking sheets is separately controlled. Therefore, in the present invention, the light blocking device may include at least one For the light blocking piece, each of the pair of light blocking sheets corresponds to one human eye.
  • the light-blocking sheet can also adopt the following embodiment: a translucent or opaque material is used to densely punch a small number of holes in the material, so that a small amount of light can reach the human eye through the small hole, and most of the light is blocked. So that the human eye is not glaring, and the outline of the glare can be seen through the light blocking sheet.
  • the light-blocking sheet can also adopt the following embodiment: a translucent or transparent material is used as the light-blocking body 1 , as shown in FIG. 2 , a black color block 2 is sprayed on the light-blocking body 1 , black The portion blocks the light so that the light is not transmitted, and the unpainted portion 3 of the light blocking body 1 allows the light to pass therethrough. In this way, a small amount of light can reach the human eye through the unpainted portion 3, and most of the light is blocked, so that the strong light is not glare, and the human eye can see the position of the strong light through the light blocking sheet.
  • the black and white pattern can be designed according to actual needs.
  • the light blocking sheet in the present invention is not limited to the above several ways.
  • the light blocking means may comprise a plurality of pairs of light blocking sheets, each pair of light blocking sheets for shielding a strong light source.
  • the actual position of the light-blocking film may be slightly deviated from the expected walking position due to the calculation of the deviation or due to mechanical clearance.
  • a deviation adjustment button can be added to the drive.
  • the deviation adjustment button is equivalent to adding another offset ( ⁇ Px, ⁇ Py, ⁇ Pz) to the drive.
  • the light block moves by an offset ( ⁇ Px, ⁇ Py, ⁇ Pz in addition to the (Px, Py, Pz) coordinates. ) to correct the deviation.
  • ⁇ Px is the amount of deviation correction in the x-axis direction
  • ⁇ Py is the amount of deviation correction in the y-axis direction
  • ⁇ Pz is the amount of deviation correction in the z-axis direction.
  • the deviation adjustment button is communicatively coupled to the motor controller to allow the operator to manually adjust the movement of the shutter via the deviation adjustment button.
  • the deviation adjustment button has one in each of the X-axis direction, the Y-axis direction, and the Z-axis direction, and controls the offset in each direction.
  • the drive controls the magnitude of the offset by sampling the value of the offset adjustment button.
  • the deviation adjustment button can be manually adjusted by a person to adjust to the light block just to completely obscure the person's eyes.
  • the anti-glare device is further provided with a remote control switch (such as an infrared remote control switch, etc.), the remote control switch is communicatively connected with the data processing device, and the data processing device controls the opening and closing of the anti-glare device according to the information sent by the remote control switch, and is turned off.
  • the light blocking device is automatically moved to a place outside the human visual field before the human eye is observed.
  • the remote control switch is mounted on the steering wheel of the vehicle to allow the person to turn the anti-glare device on or off without leaving the steering wheel.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

一种防眩光设备，属于光学技术领域。该防眩光设备包括强光检测装置、人眼位置检测装置、数据处理装置、驱动装置以及挡光装置。强光检测装置用于检测强光及其方向；强光为光强度大于第一光强度阈值的光。人眼位置检测装置用于检测人眼的位置。数据处理装置与强光检测装置、人眼位置检测装置和驱动装置均通信连接，以根据强光检测装置和人眼位置检测装置检测的信息，计算挡光装置的目标位置并发送给驱动装置。驱动装置与挡光装置连接，以将挡光装置移动到目标位置处。挡光装置用于在目标位置处减弱或者遮挡强光对人眼的直射。该防眩光设备能够有效防止眩光，且同时不降低人眼对强光周围环境的观察能力。

Description

一种防眩光设备 技术领域
本发明属于光学技术领域，涉及一种防眩光技术，尤其是防眩光设备。
 背景技术
人们在驾驶汽车或骑车时，常常会受到各种强光的困扰，例如夜间对面汽车远光 灯的强光，白天对着太阳方向驾驶时，太阳的强光等。在这些情况下，强光都会对人眼造成 眩光，导致人眼无法看清强光周围的物体，从而导致许多交通事故的发生。
 技术问题
为了解决这个问题，当前主要的办法有采用遮光板，佩戴偏光镜或墨镜，采用特定 的眼镜，使用液晶光阀或OLED显示屏等。采用遮光板时，遮光板虽然能够遮挡或削弱强光， 但同时也遮挡或削弱了道路和景物的光线，使得驾驶员的视野变暗，尤其在夜间光线微弱 的情况下，更加降低了驾驶员对道路及环境物体的观察能力。佩戴偏光镜或墨镜与采用遮 光板类似，在削弱强光的同时也削弱了道路和环境景物的光线，降低了驾驶员对道路和周 围环境的观察能力。采用特定的眼镜，例如镜片在不同的位置和层次设置不同透光率的染 色层、涂层或镀层，或者不同的颜色，仍然存在整个视野被遮暗的问题，而且佩戴者的头需 要不断地俯仰或者左右摆动，非常容易使其疲劳和烦躁。使用液晶光阀或OLED显示屏时，当 没有强光时，会对驾驶员观察路面造成不利影响，且在有强光时，其阻挡强光的效果也并不 理想。
技术解决方案
本发明的目的在于提供一种使得人眼在强光环境下，不受强光刺激且能够看清周 围事物的技术。
为了达到上述目的，本发明的解决方案是：
一种防眩光设备，包括强光检测装置、人眼位置检测装置、数据处理装置、驱动装 置以及挡光装置；所述强光检测装置用于检测强光及其方向；所述强光为光强度大于第一 光强度阈值的光；第一光强度阈值为设定值；所述人眼位置检测装置用于检测人眼的位置； 所述数据处理装置与所述强光检测装置、所述人眼位置检测装置和所述驱动装置均通信连 接，以根据所述强光检测装置和所述人眼位置检测装置检测的信息，计算所述挡光装置的 目标位置，并将所述目标位置发送给所述驱动装置；所述驱动装置与所述挡光装置连接，以 将所述挡光装置移动到所述目标位置处；所述挡光装置用于在目标位置处减弱或者遮挡强 光对人眼的直射。
所述强光检测装置包括强光检测摄像头，以由所述数据处理装置根据强光在所述 强光检测摄像头上所成的光斑的位置确定强光的方向。
所述防眩光设备还包括滤光装置，所述滤光装置安装在所述强光检测单元的前 方，以过滤弱光，所述弱光为光强度小于第二光强度阈值的光；第二光强度阈值为设定值； 优选地，所述滤光装置为滤光片；进一步优选地，所述滤光片为墨镜。
所述强光检测摄像头的光圈值为第一光圈值，第一光圈值为设定值，且所述强光 检测摄像头的光圈值为第一光圈值时所述强光检测摄像头刚好能够看到强光光源；或者， 所述强光检测摄像头的快门速度为第一快门速度值，第一快门速度值为设定值，且所述强 光检测摄像头的快门速度等于第一快门速度值时所述强光检测摄像头刚好能够看到强光 光源。
所述人眼位置检测装置为无线定位装置；或者，所述人眼位置检测装置包括至少 一个人眼定位摄像头，以由所述数据处理装置根据人眼在所述人眼定位摄像头上成像的位 置计算人眼的三维坐标。
所述驱动装置包括依次连接的电机，电机驱动器和电机控制器，所述电机控制器 与所述数据处理装置信号连接，所述电机与所述挡光装置连接，以由所述电机控制器根据 所述数据处理装置发来的目标位置信号，控制所述电机驱动器驱动所述电机，带动所述挡 光装置移动到目标位置；优选地，所述电机为步进电机或伺服电机。
所述挡光装置包括半透明材质的挡光片；或者，所述挡光装置包括不透明材质的 挡光片。
所述挡光装置包括至少一个挡光片；或者，所述挡光装置包括至少一对挡光片，每 对所述挡光片中的每个挡光片分别对应一只人眼；优选地，所述挡光装置包括多对挡光片， 每对挡光片用于遮挡一个强光源。
所述防眩光设备包括开关，所述开关与所述数据处理装置通信连接，所述数据处 理装置根据所述开关发来的信息控制所述防眩光设备的打开与关闭；优选地，所述开关为 遥控开关；优选地，当所述防眩光设备用于车辆上时，所述开关安装在车辆的方向盘上。
所述防眩光设备还包括偏差调整按钮，所述偏差调整按钮与所述驱动装置通信连 接，以允许操作人员通过所述偏差调整按钮手动调节所述挡光片的移动。
 有益效果
由于采用上述方案，本发明的有益效果是：本发明防眩光设备使得人眼在强光环 境下，不受强光刺激，且依然能够看清楚眩光周边事物，避免事故的发生。本发明相对于现 有防眩光技术来说，在遮挡强光的情况下，仅遮挡强光源对人眼的照射，而对于非强光源的 部分并没有遮挡，因此非强光源部分的物体(例如道路，路人等)的光线并没有受到削弱，因 此并不会降低人眼对周围其他事物的观察能力，人眼对昏暗物体的观察不受影响，有利于 人在光线微弱环境下的观察，大大提高了用户的行为效率和安全性。本发明尤其适用于驾 驶车辆的情境。
 附图说明
图1为本发明一实施例中防眩光设备的结构示意图；
图2为本发明另一实施例中挡光片的结构示意图。
 本发明的最佳实施方式
以下结合附图所示实施例对本发明作进一步的说明。
本发明提出了一种防眩光设备，图1所示为该防眩光设备的结构示意图。该防眩光 设备包括强光检测装置、人眼位置检测装置、数据处理装置、驱动装置以及挡光装置。强光 检测装置用于检测强光及其方向；强光为光强度大于第一光强度阈值的光；第一光强度阈 值为设定值。人眼位置检测装置用于检测人眼的位置。数据处理装置与强光检测装置、人眼 位置检测装置和驱动装置均通信连接，以根据强光检测装置和人眼位置检测装置检测的信 息，计算挡光装置的目标位置，当挡光装置处于该目标位置时恰巧遮挡住强光对人眼的直 射，并将该目标位置发送给驱动装置。驱动装置与挡光装置连接，以将挡光装置移动到上述 目标位置处。挡光装置用于在目标位置处减弱或遮挡强光对人眼的直射。
本实施例中，强光检测装置包括强光检测摄像头，强光检测摄像头能够检测强光 的存在和其射来的方向。具体地，强光在强光检测摄像头上成像成光斑，由数据处理装置根 据强光在强光检测摄像头上所成的光斑的位置确定强光的存在和方向。本实施例中，该强 光检测摄像头朝向前方(以人眼为参考，从人眼指向其前方的方向即为本申请中所述的前 方的方向)，可以采用普通的摄像头。
为了利于在强光环境下强光检测摄像头的成像，还设置有滤光装置，本实施例中 该滤光装置为滤光片。该滤光片设置在强光检测摄像头的前方，用于滤去弱光和环境的杂 光。该滤光片可以选择为颜色较深的镜片，例如墨镜。通过该滤光片，使得光强度小于第二 光强度阈值的光，即弱光，例如汽车近光灯的光、路灯的光等都被滤去，只有强光，例如汽车 远光灯的光才能够穿透它，到达强光检测摄像头上成像成光斑。
本发明中，也可以不设置滤光装置，而采用减小强光检测摄像头的光圈或加大快 门速度的方式，来实现上述目的。例如，在检测强光光源时，减小强光检测摄像头的光圈或 加大快门速度，直至该强光检测摄像头只能看到光源的程度，从而能够更好地确定光源的 位置。在具体实施时，体现为强光检测摄像头的光圈值为第一光圈值，第一光圈值为设定 值，且强光检测摄像头的光圈值为第一光圈值时强光检测摄像头刚好能够看到强光光源； 或者，体现为强光检测摄像头的快门速度为第一快门速度值，第一快门速度值为设定值，且 强光检测摄像头的快门速度等于第一快门速度值时强光检测摄像头刚好能够看到强光光 源。
人眼位置检测装置用来确定人眼球的位置和坐标，可以用无线定位装置实现；也 可以包括人眼定位摄像头，以由数据处理装置根据人眼在人眼定位摄像头上成像的位置计 算人眼的三维坐标。本实施例中，人眼位置检测装置采用人眼定位摄像头来实现，该摄像头 朝向人脸部进行摄像。人眼位置检测装置包括至少一个人眼定位摄像头。具体地，可以采用 单目摄像头或多目摄像头。通过目前成熟的人脸识别技术就可以识别出画面中人眼的位 置。当采用双目摄像头时，通过人眼在两个摄像头上成像位置的差别，就可以计算出人眼相 对于两个摄像头的三维坐标，从而定位出人眼的位置。当采用单目摄像头时，根据人眼在摄 像头上成像的位置，可以知道人眼相对于摄像头的方向；同时，人眼与摄像头的距离可以采 用一般人脸与摄像头的平均距离来作为近似(此时，人眼与摄像头的距离为设定值)，两者 相结合从而能够得到人眼相对于摄像头的三维坐标。
数据处理装置分别与强光检测装置和人眼位置检测装置通信连接，用于接收强光 检测装置和人眼位置检测装置的数据，然后根据强光射来的方向和人眼的位置坐标，计算 出挡光装置应该处于哪个位置刚好可以挡住强光对人眼的直射，计算出挡光装置所应处的 位置坐标，即目标位置，该目标位置处于强光方向上从强光光源到人眼位置之间的位置上， 即处于以强光光源和人眼位置为端点的线段上。数据处理装置同时与驱动装置通信连接， 将挡光装置的目标位置坐标发送给驱动装置，驱动装置收到命令后，将挡光装置移动到目 标位置。
数据处理装置将目标位置(Px，Py，Pz)发送到驱动装置，可以采用数据总线、串口、 以太网、蓝牙、wifi等方式发送，数据发送可以采用以上方式但不限于以上方式。其中，Px， Py，Pz分别为目标位置在x轴、y轴、z轴的坐标，基于设定的x、y、z坐标系。
本实施例中，采用电机来实现驱动装置。该驱动装置包括依次连接的电机，电机驱 动器和电机控制器，电机控制器与数据处理装置信号连接，电机与挡光装置连接，以由电机 控制器根据数据处理装置发来的目标位置信号，控制电机驱动器驱动电机，带动挡光装置 移动到目标位置。该电机可以为步进电机或伺服电机。步进电机是一种特殊的电机，每向步 进电机发送一个脉冲，步进电机转动一步，使用步进电机，可以精确地控制挡光装置的移 动。伺服电机是一种带反馈的电机，通过反馈，电机控制器可以得知当前电机转动的位置， 同样可以用来精确地控制挡光装置的移动。电机控制器可以由单片机或CPU板或可编程逻 辑器件等来实现，电机控制器与数据处理装置通信连接，接收数据处理装置发送过来的目 标位置数据(Px，Py，Pz)，输出控制信号给电机驱动器，电机驱动器驱动电机转动，将挡光装 置移动到该目标位置处。
以上是本实施例中驱动装置的实现方式，但本发明中驱动装置的实现不限于以上 方式，凡是能够实现移动挡光装置到目标位置的装置都可以采用。
挡光装置包括挡光片，可以采用半透明材质或者不透明材质，以挡住强光源射到 人眼中。挡光片可以使用但不限于颜色较深的树脂镜片，玻璃镜片，亚克力镜片等材料来制 成，凡半透明的材料均可以制作挡光片，挡光片的黑度调制到使绝大部分光线被吸收，仅少 部分光线通过挡光片后照到人眼，人眼不感到刺激为合适，人眼透过挡光片能看到强光源 的轮廓。挡光片面积略大于人眼球的面积，以完全遮住射向眼球的强光。本发明中，挡光装 置包括至少一个挡光片，例如可以仅设置一个挡光片，用来同时挡住两只眼睛。此外，由于 人有两只眼睛，也可以为两只眼睛各设一个挡光片，即设置一对挡光片，每个挡光片单独控 制，因此本发明中，挡光装置可以包括至少一对挡光片，每对挡光片中的每个挡光片分别对 应一只人眼。
 本发明的实施方式
本发明中，挡光片还可以采用以下实施方式：采用半透明或不透明的材料，在材料 上密集地打很多小孔，这样少数光能透过小孔到达人眼，绝大部分光被挡住，使得人眼不刺 眼，同时透过挡光片又能看到强光的轮廓。
本发明中，挡光片还可以采用以下实施方式：采用半透明或透明的材料作为挡光 片本体1，如图2所示，在挡光片本体1上喷涂上黑色的色块2，黑色的部分挡住光，使得光不 能透过，挡光片本体1上未喷涂的部分3允许光的透过。这样，少数光能透过未喷涂的部分3 到达人眼，绝大部分光被挡住，使得强光不刺眼，同时人眼透过挡光片又能看到强光的位 置。黑色相间的图案样式可以根据实际需要自行设计。
以上是挡光片的几种实现方式，但本发明中挡光片不限于以上几种方式。
本发明中，挡光装置可以包括多对挡光片，每对挡光片用于遮挡一个强光源。
在具体产品的实施中，由于计算偏差的原因或由于机械间隙等原因，挡光片的实 际走位与期望走位可能会略有偏差。为校正这种偏差，可以给驱动装置上加一个偏差调整 按钮。偏差调整按钮相当于给驱动装置再增加一个偏移量(ΔPx,ΔPy,ΔPz)，挡光片除了 移动到(Px，Py，Pz)坐标外，再移动一个偏移量(ΔPx，ΔPy,ΔPz)，以校正偏差。其中，ΔPx 为x轴方向上的偏差矫正量，ΔPy为y轴方向上的偏差矫正量，ΔPz为z轴方向上的偏差矫正 量。偏差调整按钮与电机控制器通信连接，以允许操作人员通过偏差调整按钮手动调节挡 光片的移动。偏差调整按钮在X轴方向、Y轴方向和Z轴方向各有一个，分别控制各个方向上 的偏移量。驱动装置通过采样偏差调整按钮的数值，来控制偏移量的大小。偏差调整按钮可 以由人手工进行调节，调节到挡光片刚好完全遮蔽人的眼睛。
此外，该防眩光设备还设置有遥控开关(如红外遥控开关等)，该遥控开关与数据 处理装置通信连接，数据处理装置根据该遥控开关发来的信息控制防眩光设备的打开与关 闭，关闭前自动将挡光装置移动至人视野以外的地方，不影响人眼的观察。当该防眩光设备 用于车辆上时，该遥控开关安装在车辆的方向盘上，以方便人手不离开方向盘即可开启或 关闭该防眩光设备。
上述的对实施例的描述是为便于该技术领域的普通技术人员能理解和应用本发 明。熟悉本领域技术的人员显然可以容易地对这些实施例做出各种修改，并把在此说明的 一般原理应用到其他实施例中而不必经过创造性的劳动。因此，本发明不限于这里的实施 例，本领域技术人员根据本发明的揭示，不脱离本发明范畴所做出的改进和修改都应该在 本发明的保护范围之内。
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Claims (10)

  1. 一种防眩光设备，其特征在于：包括强光检测装置、人眼位置检测装置、数据处理装 置、驱动装置以及挡光装置；
    所述强光检测装置用于检测强光及其方向；所述强光为光强度大于第一光强度阈值的 光；第一光强度阈值为设定值；
    所述人眼位置检测装置用于检测人眼的位置；
    所述数据处理装置与所述强光检测装置、所述人眼位置检测装置和所述驱动装置均通 信连接，以根据所述强光检测装置和所述人眼位置检测装置检测的信息，计算所述挡光装 置的目标位置，并将所述目标位置发送给所述驱动装置；
    所述驱动装置与所述挡光装置连接，以将所述挡光装置移动到所述目标位置处；
    所述挡光装置用于在目标位置处减弱或者遮挡强光对人眼的直射。
  2. 根据权利要求1所述的防眩光设备，其特征在于：所述强光检测装置包括强光检测摄 像头，以由所述数据处理装置根据强光在所述强光检测摄像头上所成的光斑的位置确定强 光的方向。
  3. 根据权利要求1所述的防眩光设备，其特征在于：还包括滤光装置，所述滤光装置安 装在所述强光检测单元的前方，以过滤弱光，所述弱光为光强度小于第二光强度阈值的光； 第二光强度阈值为设定值；
    优选地，所述滤光装置为滤光片；
    进一步优选地，所述滤光片为墨镜。
  4. 根据权利要求2所述的防眩光设备，其特征在于：所述强光检测摄像头的光圈值为第 一光圈值，第一光圈值为设定值，且所述强光检测摄像头的光圈值为第一光圈值时所述强 光检测摄像头刚好能够看到强光光源；
    或者，所述强光检测摄像头的快门速度为第一快门速度值，第一快门速度值为设定值， 且所述强光检测摄像头的快门速度等于第一快门速度值时所述强光检测摄像头刚好能够 看到强光光源。
  5. 根据权利要求1所述的防眩光设备，其特征在于：所述人眼位置检测装置为无线定位 装置；
    或者，所述人眼位置检测装置包括至少一个人眼定位摄像头，以由所述数据处理装置 根据人眼在所述人眼定位摄像头上成像的位置计算人眼的三维坐标。
  6. 根据权利要求1所述的防眩光设备，其特征在于：所述驱动装置包括依次连接的电 机，电机驱动器和电机控制器，所述电机控制器与所述数据处理装置信号连接，所述电机与 所述挡光装置连接，以由所述电机控制器根据所述数据处理装置发来的目标位置信号，控 制所述电机驱动器驱动所述电机，带动所述挡光装置移动到目标位置；
    优选地，所述电机为步进电机或伺服电机。
  7. 根据权利要求1所述的防眩光设备，其特征在于：所述挡光装置包括半透明材质的挡 光片；
    或者，所述挡光装置包括不透明材质的挡光片。
  8. 根据权利要求7所述的防眩光设备，其特征在于：所述挡光装置包括至少一个挡光 片；
    或者，所述挡光装置包括至少一对挡光片，每对所述挡光片中的每个挡光片分别对应 一只人眼；
    优选地，所述挡光装置包括多对挡光片，每对挡光片用于遮挡一个强光源。
  9. 根据权利要求1所述的防眩光设备，其特征在于：包括开关，所述开关与所述数据处 理装置通信连接，所述数据处理装置根据所述开关发来的信息控制所述防眩光设备的打开 与关闭；
    优选地，所述开关为遥控开关；优选地，当所述防眩光设备用于车辆上时，所述开关安装在车辆的方向盘上。
  10. 根据权利要求1所述的防眩光设备，其特征在于：还包括偏差调整按钮，所述偏差调 整按钮与所述驱动装置通信连接，以允许操作人员通过所述偏差调整按钮手动调节所述挡 光片的移动。
     
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