WO2014117399A1 - 车用智能灯光装置 - Google Patents

车用智能灯光装置 Download PDF

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Publication number
WO2014117399A1
WO2014117399A1 PCT/CN2013/071316 CN2013071316W WO2014117399A1 WO 2014117399 A1 WO2014117399 A1 WO 2014117399A1 CN 2013071316 W CN2013071316 W CN 2013071316W WO 2014117399 A1 WO2014117399 A1 WO 2014117399A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
unit
brightness
projection point
lamp body
Prior art date
Application number
PCT/CN2013/071316
Other languages
English (en)
French (fr)
Inventor
李文嵩
Original Assignee
Lee Wen-Sung
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lee Wen-Sung filed Critical Lee Wen-Sung
Priority to PCT/CN2013/071316 priority Critical patent/WO2014117399A1/zh
Priority to KR1020137033607A priority patent/KR101556459B1/ko
Priority to EP13814405.0A priority patent/EP2913581B1/en
Priority to PL13814405T priority patent/PL2913581T3/pl
Publication of WO2014117399A1 publication Critical patent/WO2014117399A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B60Q1/14—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
    • B60Q1/1415—Dimming circuits
    • B60Q1/1423—Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/0017—Devices integrating an element dedicated to another function
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B60Q1/14—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J6/00—Arrangement of optical signalling or lighting devices on cycles; Mounting or supporting thereof; Circuits therefor
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/10—Controlling the intensity of the light
    • H05B45/12—Controlling the intensity of the light using optical feedback
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
    • B60Q2300/30—Indexing codes relating to the vehicle environment
    • B60Q2300/31—Atmospheric conditions
    • B60Q2300/314—Ambient light

Definitions

  • the present invention is an intelligent lighting device for a vehicle, and more specifically relates to a design capable of adjusting the illumination intensity in response to the ambient brightness of the illumination area, and having the function of saving power.
  • Cycling has become the most popular form of fitness for the public. In addition to fitness, riding bicycles can also avoid carbon dioxide emissions and harm the air. Bicycles can be used by both men and women, so many people use them. Free time to ride in an empty place. However, in those who love to ride bicycles, some people have to work because the time required for riding must be extended to the darker nights. However, people’s eyesight at night is easy due to the nature of the sky. The visual sense is reduced, and the general rider does not ride in a closed place, but it is easy to use the same road with other steam, locomotives and passers-by. Therefore, riding a bicycle at night is more likely to cause traffic accidents.
  • Taiwan Patent Publication No. 356790 is a structural improvement of a bicycle flashing warning device, especially one that automatically starts to generate flash when driving and lack of light, parking Or a structure that automatically closes when there is sufficient light.
  • LED flash driving circuit There is mainly an LED flash driving circuit, and LEDs (light emitting diodes) are respectively connected at the output ends thereof, and the negative ends of the LEDs are connected in series to a photoresistor (CDS), and the ground ends of the photoresistors are connected to each other.
  • CDS photoresistor
  • the spring switch To a contact of a spring switch, the spring switch is connected in series with a resistor and grounded; the photosensitive detection of the photoresistor and the spring switch are subjected to driving vibration to contact the double-start control structure such as conduction to achieve the desired effect.
  • the existing bicycle light can automatically turn on and off the flashing effect in accordance with whether the ambient light is sufficient or not, the photosensitive light is used to sense the ambient light intensity, but in fact, the photoresistor only feels the ambient light brightness.
  • the difference but not properly limited to the illumination range that senses a given distance, especially for pedestrians, locomotives, bicyclists, etc., which is mainly to illuminate the road at a given distance ahead of the lamp body, so that pedestrians and knights can see the front. Traveling in the road conditions, if the current design of the photoresistor is used, the current illumination range is often encountered, and the brightness of the side is inconsistent, the photoresistor cannot be a machine.
  • the dynamic judgment, and the existing bicycle light only has two modes of automatic opening and closing of the light, but it cannot be reinforced according to the ambient brightness of the illumination area, and the illumination brightness is lowered, so that the following conditions are likely to occur:
  • the conventional bicycle light can not reinforce the lighting area in time and cause danger of travel.
  • the bicycle lamp can only perform the function of opening and closing the flash according to the sensing result of the photoresistor, but does not have the function of adjusting the illumination brightness according to the ambient brightness of the illumination area, so the bicycle lamp must be equipped with a higher capacity battery.
  • the volume of the high-capacity battery has a considerable size, so the bicycle lamp cannot effectively save battery power, and the size of the battery cannot be appropriately reduced in design.
  • a primary object of the present invention is to provide an intelligent lighting device for a vehicle which can improve the existing bicycle light which cannot be reinforced by the ambient brightness of the illumination area, reduces the brightness of the illumination, and cannot save power and the like.
  • the intelligent lighting device for a vehicle comprises a lamp body, a light collecting unit, a light emitting unit and a collecting lens, wherein the front end of the lamp body is provided with a concave curved reflecting cup, and the collecting lens is arranged for reflection.
  • the front end of the cup is open, and the light emitting unit is disposed on the inner wall of the rear end of the reflector cup, and the light collecting unit is disposed on the lamp body, and the light emitting unit defines a light projection point with the collecting lens at the front end of the lamp body, and the light collecting unit faces the light. Project the point direction.
  • the light collecting unit is provided with a micro control unit and a pulse width modulation unit, and the micro control unit has a preset ambient brightness value, and the light collecting unit can sense the ambient light brightness of the light projection point and transmit the sensing information to the micro control.
  • a unit after the micro control unit compares the received sensing information with a preset ambient brightness value, calculates a difference in ambient brightness, and transmits the difference to the pulse width modulation unit by command information, by pulse width
  • the modulating unit regulates the brightness of the light-emitting unit corresponding to the difference, according to the corresponding light
  • the ambient brightness at the shot point increases or decreases the brightness of the light.
  • the light collecting unit further comprises a differential amplifying unit and an analog to digital converting unit, wherein the differential amplifying unit senses the ambient light brightness of the light projection point, and the sensing information is amplified by the signal and transmitted to the analog to digital conversion unit.
  • the number conversion unit converts the sensing information from analog information to digital information and transmits it to the micro control unit for calculation, and the micro control unit compares the received digital information with the preset ambient brightness value to calculate the ambient brightness. The difference provides more accurate sensing and operation effects.
  • the light collecting unit of the present invention further includes a buffer unit having a preset buffer value.
  • the pulse width modulation unit commands the illumination unit to adjust the illumination brightness, so that when the light projection point of the present invention flashes for the ambient brightness for a short time, the light collection unit commands the illumination unit to adjust the illumination brightness without avoiding the state of flashing of the present invention;
  • the buffer unit determines that there is a significant, non-transitory brightness change at the ray casting point, so that the buffer unit cooperates with the micro control unit to change the brightness and time of brightness.
  • the value is an integrated calculation, and the light-emitting unit is commanded by the micro-control unit and the pulse width modulation unit to increase or decrease the brightness of the light.
  • the light collecting unit of the present invention is disposed at the reflecting cup and projects toward the light ray.
  • the light collecting unit of the present invention is provided with a photosensitive semiconductor module including a differential amplifying unit and a light emitting unit, and is an integrated component having light emission, light reception, and light signal amplification.
  • the light projection point of the invention is a horizontal distance of 5-30 meters from the lamp body, wherein the horizontal distance 5-10 meters can correspond to the identifiable distance when riding a bicycle or a locomotive, and can also correspond to a general battery-powered lamp body.
  • the distance that can be illuminated by warning, the horizontal distance of 15-30 meters can correspond to the identifiable distance when driving a car.
  • the lamp body of the present invention further comprises an adjusting unit connected to the micro control unit, wherein the adjusting unit can manually adjust the lighting effect of the light emitting unit, so that the user can manually adjust the brightness of the light emitting unit according to the preference, and provide more Comfortable lighting effects.
  • FIG. 1 is a schematic view of a light projection pattern of the present invention.
  • FIG. 2 is a block diagram of a light collecting unit of the present invention.
  • Figure 3 is a schematic view of the bicycle used in the present invention.
  • Figure 4 is a schematic view of the present invention used in a car.
  • Fig. 5 is a graph showing the curve of the ambient brightness level - time, driving current value level - time, and brightness level of the light projection area - time of the projection area of the present invention. In the picture
  • the invention relates to a smart lighting device for a vehicle.
  • a smart lighting device for a vehicle.
  • FIG. 1 and FIG. 2 it is a main embodiment of the present invention, comprising a lamp body 1, a light collecting unit 2, a light emitting unit 3 and a concentrating mirror.
  • Slice 4 where:
  • the front end of the lamp body 1 is provided with a concave curved reflector cup 11, the concentrating lens 4 is disposed at the front end opening of the reflector cup 11, and the illuminating unit 3 is disposed at the inner wall of the rear end of the reflector cup 11, and the light collecting unit 2 is disposed on the lamp body 1, and
  • the illuminating unit 3 defines a ray projection point 5 at the front end of the lamp body 1 with the condensing lens 4, and the concentrating unit 2 faces the ray projection point 5.
  • the lamp body 1 is implemented as a bicycle lamp.
  • the light body 1 is recessed in front to accommodate the reflective cup 11, and the collecting lens 4 is embedded in the front end of the reflective cup 11.
  • the light-emitting unit 3 is disposed at the center of the concave wall at the rear end of the reflector cup 11, so that part of the light emitted by the light-emitting unit 3 can be driven forward by the collecting lens 4, and other light is reflected by the reflective cup 11 and transmitted to the front of the collecting lens 4. And defining an illumination area of the illuminating unit 3 with the condensing lens 4 at a predetermined distance in front of the lamp body 1 as a ray projection point 5 (the ray projection point 5 of the present invention is a horizontal distance of 5-30 meters from the lamp body 1, the ray projection of FIG.
  • Point 5 is a horizontal distance of 5-10 meters from the lamp body 1 to correspond to the general range of riding a bicycle or a locomotive, or a pedestrian walking, or a distance that can be illuminated by the lamp body 1 generally using a battery-powered mode.
  • the light projection point 5 is a horizontal distance of 15-30 meters from the lamp body 1 to correspond to the recognizable distance when driving the automobile, and the light collecting unit 2 is disposed on the top surface of the reflective cup 11. And the light collecting unit 2 is directed toward the light projection point 5, and the light collecting unit 2 is not excessively large in size, so that the receiving of the reflective cup 11 does not affect the design volume of the lamp body 1 and does not affect the size.
  • Light projection of the light unit 3 is a horizontal distance of 5-10 meters from the lamp body 1 to correspond to the general range of riding a bicycle or a locomotive, or a pedestrian walking, or a distance that can be illuminated by the lamp body 1 generally using a battery-powered mode.
  • the light projection point 5 is a horizontal distance of 15-30 meters from the lamp
  • the light collecting unit 2 is provided with a micro control unit 23 and a pulse width modulation unit 24 (further including a differential amplifying unit 21 and an analog to digital converting unit 22), as shown in FIG. 2, wherein the differential amplifying unit 21 can sense light.
  • the brightness of the ambient light of the point 5 is projected, and the sensing information is amplified by the signal and transmitted to the analog-to-digital conversion unit 22 (the differential amplifying unit 21 is an existing structure, and the sensing information can be effectively amplified and outputted).
  • the analog-to-digital conversion unit 22 (referred to as an Analog-to-digital converter, generally referred to as A/D, is a device for converting a continuous signal in an analog form into a discrete signal in a digital form), and converts the sensing information from analog information to digital
  • A/D Analog-to-digital converter
  • the information is transmitted to the micro control unit 23 for operation, and the micro control unit 23 (which is a type of micro processor, commonly referred to as an MCU) has a preset ambient luminance value to be received by the micro control unit 23 via the received number.
  • the difference of the ambient brightness is calculated, and the difference is transmitted to the pulse width modulation unit 24 by the command information (Pulse Width Modulation, abbreviated as PWM, which converts the analog signal)
  • PWM Pulse Width Modulation
  • the period of the pulse wave is generally fixed after the conversion, but the duty ratio of the pulse wave changes depending on the size of the analog signal).
  • the light collecting unit 2 is provided with a photosensitive semiconductor component, which comprises a differential amplifying unit 21 and a light emitting unit 3, and is an integrated component having light emission, light receiving and light signal amplification;
  • the lamp body 1 is further provided with an adjusting unit 26 connected to the micro control unit 23, and the adjusting unit 26 can manually adjust the lighting effect of the light emitting unit 3, so that the user can manually adjust the brightness of the light emitting unit 3 according to his preference. Provides more comfortable lighting effects.
  • the pulse width modulation unit 24 regulates the brightness of the light-emitting unit 3 corresponding to the difference, according to which The ambient brightness at the ray casting point 5 increases or decreases the illuminating brightness.
  • the composition and function of the concentrating unit 2 senses and amplifies the intensity of the light detected by the ray casting point 5 by the differential amplifying unit 21, and the analog to digital conversion unit 22
  • the micro control unit 23 transmits and calculates the ambient brightness difference between the built-in ambient brightness and the ray casting point 5, and commands the illuminating unit 3 to illuminate the ray casting point 5 with the corresponding difference or reduce the ambient brightness via the pulse width modulating unit 24 (
  • the differential amplifying unit 21 and the analog-to-digital converting unit 22 can provide more accurate sensing and operation effects).
  • the light collecting unit 2 further includes a buffer unit 25 having a preset buffer value.
  • a buffer unit 25 having a preset buffer value.
  • the buffer unit 25 determines that there is a significant, non-transitory brightness change at the ray projection point 5, so that the buffer unit 25 cooperates with the micro control unit 23 to increase the brightness.
  • the value of changing the time and the brightness is an integrated calculation, and the micro-control unit 23 and the pulse width modulation unit 24 command the light-emitting unit 3 to increase or decrease the light-emitting brightness. Therefore, the present invention has the following features:
  • the present invention is to sense the ambient brightness value of the light projection point 5 by the light collecting unit 2, and calculate the difference between the built-in ambient light brightness value and the foregoing value by the light collecting unit 2, and command the light emitting unit 3 to reinforce or according to the value.
  • the ambient brightness of the light projection point 5 is lowered, and the projection brightness of the lamp body 1 is dynamically adjusted according to the brightness condition of the light projection point 5, so that the pedestrian or the knight can smoothly recognize the front road condition without manual adjustment, and the adjustment mode is present.
  • the foregoing invention can adjust the projection brightness characteristic of the lamp body 1 in accordance with the brightness condition of the light projection point 5. Therefore, the power source installed in the lamp body 1 of the present invention can be designed with appropriate capacity and volume, and the first can be reduced. The volume of the battery is reduced to reduce the weight of the lamp body 1 and the design volume of the lamp body 1. The second can increase the battery life of the battery, and the current capacity of the battery can not be adjusted as in the existing structure, and the power is actually saved without the need for illumination. The problem.
  • the buffer unit 25 when the light projection point 5 flashes a short time, the light-emitting unit 3 does not immediately replenish or reduce the brightness, thereby avoiding unnecessary flashing of the corresponding light flashing of the present invention. , so that the user is not bothered by the rapid change of brightness, only the buffer unit 25 can confirm After the ray casting point 5 has a relatively stable and deterministic change, the illuminating unit 3 is supplemented or reduced in brightness, which is in fact effective in providing stable illumination to the user's ideal viewing distance.
  • the illuminance required by vehicles in urban areas and suburbs is bound to be different. Due to street lamps and human activities, the light source is sufficient, while the suburban street lamps have low density, resulting in a relatively dim environment. Therefore, when using the present invention on a vehicle, The light collecting unit 2 can recognize the front road condition by emitting a lower illumination amount in the urban area according to the sensing result of the light projection point 5, and the suburbs need a higher illumination amount to drive safely.
  • the 5 is a graph of ambient brightness level-time, driving current value level-time, light projection area brightness level-time of the projection area of the present invention
  • the projected area ambient brightness level refers to a brightness value given to the projection area by the environment
  • the driving current value level refers to the driving current value of the electro-mechanical corresponding brightness when the invention is implemented on the electronic machine
  • the brightness level of the light projection area refers to the sum of the light projection and the ambient brightness of the projection area, so in the figure It can be seen that in the projection area (corresponding to the light projection point 5 of the present invention), when the ambient brightness level is low, the light-emitting unit 3 should be supplemented with a higher projection brightness, and of course, the driving current value is also increased, but the light-emitting unit 3 is supplemented.
  • the total brightness of the light projection area is kept at a preset constant value.

Abstract

一种车用智能灯光装置，包括灯体（1）、集光单元（2）、发光单元（3）以及聚光镜片（4）。灯体（1）前端设有一凹弧状反射杯（11），聚光镜片（4）设于反射杯（11）前端开口处，发光单元（3）设于反射杯（11）后端内壁，集光单元（2）设于灯体（1）上，发光单元（3）配合聚光镜片（4）于灯体（1）前端定义出一光线投射点（5），集光单元（2）朝向光线投射点（5）方向；该集光单元（2）可感应光线投射点（5）的环境光线亮度，与预设的环境亮度值相比较后，计算得出环境亮度的差值，并使用该差值命令发光单元（3）发出对应该差值的亮度，以对应光线投射点（5）处的环境亮度而增加或降低发光亮度，使得能根据照明区域的环境亮度而调整照明强度，并兼具节省电力的功能。

Description

车用智能灯光装置
技术领域
本发明为一种车用智能灯光装置， 详而言之关于一种能因应照明区域的环 境亮度而调整照明强度， 并兼具节省电力功能的设计。
背景技术
自行车运动已经成为现在社会大众最热门的健身方式， 骑乘自行车除了能 达到健身功效外， 也可避免二氧化碳的排放而危害到空气， 并且自行车不论男 女老少皆可操作使用， 所以， 许多人都利用空余时间到较空旷的场所骑乘。 然而， 在这些热爱骑乘自行车的人们里， 有些人因工作因素， 以致于骑乘 的时间必须延至天色较暗的晚上才可骑乘， 然而人们的眼睛视力在晚上时， 容 易因天色因素而造成视觉感官下降， 且一般骑乘者并非在封闭的场所内骑乘， 而有容易与其它的汽、 机车及路人共同使用同一道路的情形发生， 所以， 在晚 上骑乘自行车更容易发生交通意外， 为此， 为了提供周围的汽、 机车或路人清 楚明辨前方有骑乘自行车人员的存在， 骑乘者会在自行车上或在身上穿戴上具 反光或可发亮的装置， 以避免交通意外的发生。 现有的自行车灯请参阅中国台湾专利公告号第 356790号的自行车闪光警示 器结构改良， 其为一种自行车闪光警示器结构改良， 尤指一种于行车及光线不 足时自动启动产生闪光，停车或光线充足时自动关闭的结构。主要乃具有一 LED 闪光驱动电路， 于其输出端分别连接有 LED (发光二极管）， 该 LED的负极端 乃共同串接于一光敏电阻 （CDS), 而于该光敏电阻的地端则另接至一弹簧开关 的一接点， 该弹簧开关乃串接一电阻后接地； 利用该光敏电阻的感光侦测暨弹 簧开关受行车震动以接触导通等双重启动控制结构， 以达到预期效果。 然而， 该种现有的自行车灯虽可配合环境光线充足与否而自动启闭闪光效 果， 然其采用的是以光敏电阻感应环境周遭光线强度， 但事实上， 光敏电阻仅 会感受环境光线亮度的差别， 但不能适当的被限制在感应既定距离的照明范围 处， 特别是一般行人或机车、 自行车骑士等， 其主要是以灯体照明前方既定距 离的道路， 使行人、 骑士得以看清前方路况而行进， 若是采用该光敏电阻的现 有设计， 常常会遇到当前方照明范围、 身边亮度不一致时， 光敏电阻不能为机 动性的判断， 而且该现有的自行车灯只有灯光自动启闭的两种模式， 但无法因 应照明区域的环境亮度而补强、 降低照明亮度， 致使容易发生下列状况：
1、 该习用自行车灯不能及时对照明区域补强灯光而造成行进危险。
2、 又或是不能因应于灯光投射区的环境亮度， 而适当降低发光强度， 而造 成浪费自行车灯电力的问题。
3、 而且该种自行车灯只能依光敏电阻的感应结果， 作启闭闪光的效果， 但 不具因应照明区域的环境亮度以调整照明亮度的功能， 因此该自行车灯必须安 装较高容量的电池， 以维持自行车灯的续航力， 而又为了制造成本考虑， 高容 量电池的体积都具有相当尺寸， 因此该自行车灯不能有效的节省电池电力， 也 不能在设计上适当缩限电池的体积。
由于上述现有自行车灯不能因应照明区域的环境亮度而补强、 降低照明亮 度， 以及不能节省电力等缺点， 本发明人认有必要加以改进， 应设计一种能因 应照明区域的环境亮度而调整照明强度， 并兼具节省电力功能的灯体结构。 发明内容
本发明主要目的是提供一种车用智能灯光装置， 其可改善现有的自行车灯 不能因应照明区域的环境亮度而补强、 降低照明亮度， 以及不能节省电力等缺 点。
为了达成上述的目的与功效， 本发明车用智能灯光装置包括一灯体、 一集 光单元、 一发光单元以及一聚光镜片， 其中该灯体前端设一凹弧状反射杯， 聚 光镜片设于反射杯前端开口处， 而发光单元则设于反射杯后端内壁， 集光单元 设于灯体， 而该发光单元配合聚光镜片于灯体前端定义出一光线投射点， 而集 光单元朝向该光线投射点方向。
该集光单元设有一微控制单元及一脉宽调制单元， 而微控制单元具有预设 的环境亮度值， 而集光单元可感应光线投射点的环境光线亮度， 并把感应信息 传输给微控制单元， 待微控制单元经由所接收的感应信息及预设的环境亮度值 相比较后， 计算得出环境亮度的差值， 并将该差值以命令信息传输给脉宽调制 单元， 由脉宽调制单元调控发光单元发出对应该差值的亮度， 据以对应光线投 射点处的环境亮度增加或降低发光亮度。
本发明该集光单元进一步包括一差分放大单元及一模数转换单元， 其中该 差分放大单元可感应光线投射点的环境光线亮度， 并把感应信息以讯号放大后 传输给模数转换单元， 模数转换单元则将该感应信息由模拟信息转换为数字信 息并传输给微控制单元运算， 供微控制单元经由所接收的数字信息及预设的环 境亮度值相比较后， 计算得出环境亮度的差值， 提供更为精确的感应、 运算效 果。
本发明该集光单元进一步包括一缓冲单元， 该缓冲单元具有预设的缓冲数 值， 当集光单元感测光线投射点方向的亮度改变时间在缓冲数值之下时， 其会 经微控制单元、 脉宽调制单元命令发光单元不需要调整发光亮度， 让本发明遇 光线投射点为环境亮度短时间闪灭时， 集光单元命令发光单元不需调整发光亮 度而避免造成本发明动辄闪烁的状态； 而感测光线投射点方向的亮度改变时间 在缓冲数值之上时， 缓冲单元判断光线投射点处有显著、 非短暂性的亮度改变， 使缓冲单元配合微控制单元会将亮度改变时间与亮度的数值为整合计算， 经微 控制单元、 脉宽调制单元命令发光单元增加或降低发光亮度。 本发明该集光单元设于反射杯处， 并朝向光线投射点。
本发明该集光单元设有感光半导体组件， 该感光半导体组件包含差分放大 单元及发光单元， 成为具有光的发射、 光的接收及光的信号放大的整合组件。
本发明该光线投射点距灯体为水平距离 5-30公尺，其中水平距离 5-10公尺 可对应骑乘自行车或机车时的可辨识距离， 也可对应一般采电池供电方式的灯 体可以发光警示的距离， 水平距离 15-30公尺可对应驾驶汽车时的可辨识距离。 本发明该灯体进一步设有一与微控制单元连接的调整单元， 该调整单元可 供手动调整发光单元的发光效果， 因而使用者可依其喜好而手动调整发光单元 的发光亮度等， 提供更为舒适的照明效果。 附图说明
图 1为本发明光线投射型态示意图。
图 2为本发明集光单元的方块图。 图 3为本发明使用在自行车示意图。
图 4为本发明使用在汽车示意图。 图 5为本发明投射区环境亮度等级-时间、 驱动电流值等级-时间、 灯光投射 区亮度等级 -时间的曲线坐标图。 图中
1 灯体；
11 反射杯；
2集光单元；
21 差分放大单元；
22模数转换单元；
23 微控制单元；
24脉宽调制单元；
25 缓冲单元；
26调整单元；
3 发光单元；
4 聚光镜片；
5 光线投射点。
具体实施方式
本发明有关于一种车用智能灯光装置， 请参阅图 1和图 2所示， 其为本发 明的主实施例， 包括一灯体 1、 一集光单元 2、 一发光单元 3以及一聚光镜片 4， 其中：
该灯体 1前端设一凹弧状反射杯 11，聚光镜片 4设于反射杯 11前端开口处， 而发光单元 3则设于反射杯 11后端内壁， 集光单元 2设于灯体 1， 而该发光单 元 3配合聚光镜片 4于灯体 1前端定义出一光线投射点 5，而集光单元 2朝向该 光线投射点 5方向， 如图 1所示， 该灯体 1实施为自行车灯的型态， 该灯体 1 前方凹设适当空间以容设该反射杯 11，聚光镜片 4则嵌设于反射杯 11前端开口 处， 发光单元 3设于反射杯 11后端内凹壁中央， 因而发光单元 3所发出的部分 光线可由聚光镜片 4打向前方， 其它光线则由反射杯 11反射往聚光镜片 4透射 至前方， 并定义发光单元 3配合聚光镜片 4往灯体 1前方既定距离的照射区域 为光线投射点 5(本发明该光线投射点 5距灯体 1为水平距离 5-30公尺， 图 3该 光线投射点 5距灯体 1为水平距离 5-10公尺， 以对应一般例如骑乘自行车或机 车， 或者行人行走的可视范围， 也可对应一般采用电池供电方式的灯体 1 可以 发光警示的距离，又或者如图 4所示，该光线投射点 5距灯体 1为水平距离 15-30 公尺， 以对应驾驶汽车时的可辨识距离)， 而集光单元 2设于反射杯 11顶面， 并 使该集光单元 2朝向光线投射点 5， 且该集光单元 2因体积不会过大， 因此容置 在反射杯 11处不会影响灯体 1设计体积的大小， 也不会影响发光单元 3的光线 投射状态；
该集光单元 2设有一微控制单元 23及一脉宽调制单元 24(进一步包括一差 分放大单元 21及一模数转换单元 22)， 如图 2所示， 其中该差分放大单元 21可 感应光线投射点 5 的环境光线亮度， 并把感应信息以讯号放大后传输给模数转 换单元 22(差分放大单元 21属现有构造，主要可以将感应信息有效的放大输出)。
模数转换单元 22(指 Analog-to-digital converter, 通称为 A/D, 是用于将模拟 形式的连续讯号转换为数字形式的离散讯号的设备)则将该感应信息由模拟信息 转换为数字信息并传输给微控制单元 23运算， 而微控制单元 23(属微型处理器 的一种， Micro Control unit, 通称为 MCU)具有预设的环境亮度值， 待微控制单 元 23经由所接收的数字信息及预设的环境亮度值相比较后， 计算得出环境亮度 的差值，并将该差值以命令信息传输给脉宽调制单元 24(Pulse Width Modulation, 缩写为 PWM， 是将模拟信号转换为脉波的一种技术， 一般转换后脉波的周期固 定， 但脉波的占空比会依模拟信号的大小而改变)。 值得一提的是， 该集光单元 2设有感光半导体组件， 该感光半导体组件包 含差分放大单元 21及发光单元 3， 成为具有光的发射、 光的接收及光的信号放 大的整合组件； 该灯体 1进一步设有一与微控制单元 23连接的调整单元 26， 该 调整单元 26可供手动调整发光单元 3的发光效果， 因而使用者可依其喜好而手 动调整发光单元 3的发光亮度等， 提供更为舒适的照明效果。 其后由脉宽调制单元 24调控发光单元 3发出对应该差值的亮度， 据以对应 光线投射点 5处的环境亮度增加或降低发光亮度， 因此该上述集光单元 2的组 成及作用以差分放大单元 21感应并放大对光线投射点 5探得的光线强度， 而模 数转换单元 22、微控制单元 23传输并运算内建环境亮度与光线投射点 5的环境 亮度差值， 经由脉宽调制单元 24命令发光单元 3对光线投射点 5照射对应差值 的补强或降低环境亮度 (差分放大单元 21、 模数转换单元 22可提供更为精确的 感应、 运算效果）。
以及， 该集光单元 2进一步包括一缓冲单元 25， 该缓冲单元 25具有预设的 缓冲数值， 当集光单元 2感测光线投射点 5方向的亮度改变时间在缓冲数值之 下时， 其会经微控制单元 23、脉宽调制单元 24命令发光单元 3不需要调整发光 亮度， 让本发明遇光线投射点 5为环境亮度短时间闪灭时， 集光单元 2命令发 光单元 3不需调整发光亮度而避免造成本发明动辄闪烁的状态。 而感测光线投射点 5方向的亮度改变时间在缓冲数值之上时， 缓冲单元 25 判断光线投射点 5处有显著、 非短暂性的亮度改变， 使缓冲单元 25配合微控制 单元 23会将亮度改变时间与亮度的数值为整合计算， 经微控制单元 23、脉宽调 制单元 24命令发光单元 3增加或降低发光亮度， 因此本发明有下列特点：
1、 本发明是由集光单元 2感应光线投射点 5的环境亮度值， 并由集光单元 2运算内建环境光线亮度值与前述数值的差异，并据该数值命令发光单元 3补强 或降低光线投射点 5的环境亮度， 有效地因应光线投射点 5的亮度状况而机动 调整灯体 1 的投射亮度， 让行人或骑士顺利的辨识前方路况而不需手动调整， 且该调整方式与现有采光敏电阻只能自动的启闭既定亮度灯光的结构截然不 同。
2、 借由前述本发明可配合光线投射点 5的亮度状况而机动调整灯体 1的投 射亮度特性， 因此本发明安装在灯体 1 内的电源可以设计以适当容量、 体积， 第一可以减少电池体积的占量而减轻灯体 1重量及灯体 1设计体积， 第二可以 让电池的续航力增加， 不会如现有结构不能调整亮度下， 而发生实际上不需辅 以照明而浪费电力的问题。
3、 借由缓冲单元 25的增设， 其使光线投射点 5遇逢短暂的光线闪灭时， 发光单元 3 不会即刻补充或降低亮度， 避免本发明对应光线的闪灭产生不必要 的闪烁状态， 让使用者不会受到明亮急速变化的困扰， 仅在缓冲单元 25能确认 光线投射点 5为具有相当稳定性、 确定性的变化后， 令发光单元 3补充或降低 亮度， 符合实际上对使用者理想视距内提供稳定照明的功效。
4、 车辆在市区、 郊区所需的光照度势必不同， 市区由于路灯、 人为活动原 因， 光源较为充足， 而郊区路灯密度较低， 导致环境相当昏暗， 因此使用本发 明于车辆上时， 其集光单元 2可根据对光线投射点 5的感测结果， 在市区发出 较低的照明量即可辨认前方路况， 而郊区即要较高的照明量才能安全行驶。
图 5为本发明投射区环境亮度等级-时间、 驱动电流值等级-时间、 灯光投射 区亮度等级-时间的曲线图， 该所述的投射区环境亮度等级是指环境给予投射区 的亮度值， 而驱动电流值等级指当本发明实施于电子机械上时， 电子机械对应 发光亮度的驱动电流值， 而灯光投射区亮度等级则指投射区受到光线投射与环 境亮度的总和值， 因此在该图 5中可见到， 投射区 (可对应本发明的光线投射点 5)环境亮度等级较低时， 发光单元 3应补上较高的投射亮度， 当然驱动电流值也 会提高， 但发光单元 3 补上投射亮度配上投射区环境亮度的结果， 仍是让灯光 投射区的亮度总值保持在预设的恒定值处。

Claims

权利要求书
1.一种车用智能灯光装置， 其特征在于， 包括一灯体、 一集光单元、 一发光 单元以及一聚光镜片， 其中：
该灯体前端设一凹弧状反射杯， 聚光镜片设于反射杯前端开口处， 而发光 单元则设于反射杯后端内壁， 集光单元设于灯体， 而该发光单元配合聚光镜片 于灯体前端定义出一光线投射点， 而集光单元朝向该光线投射点方向；
该集光单元设有一微控制单元及一脉宽调制单元， 而微控制单元具有预设 的环境亮度值， 而集光单元能够感应光线投射点的环境光线亮度， 并把感应信 息传输给微控制单元， 待微控制单元经由所接收的感应信息及预设的环境亮度 值相比较后， 计算得出环境亮度的差值， 并将该差值以命令信息传输给脉宽调 制单元， 由脉宽调制单元调控发光单元发出对应该差值的亮度， 据以对应光线 投射点处的环境亮度增加或降低发光亮度。
2.根据权利要求 1所述的车用智能灯光装置， 其特征在于， 该集光单元进一 步包括一差分放大单元及一模数转换单元， 其中该差分放大单元能够感应光线 投射点的环境光线亮度， 并把感应信息以讯号放大后传输给模数转换单元， 模 数转换单元则将该感应信息由模拟信息转换为数字信息并传输给微控制单元运 算， 供微控制单元经由所接收的数字信息及预设的环境亮度值相比较后， 计算 得出环境亮度的差值， 提供更为精确的感应、 运算效果。
3.根据权利要求 1所述的车用智能灯光装置， 其特征在于， 该集光单元进一 步包括一缓冲单元， 该缓冲单元具有预设的缓冲数值， 当集光单元感测光线投 射点方向的亮度改变时间在缓冲数值之下时， 其会经微控制单元、 脉宽调制单 元命令发光单元不需要调整发光亮度；
而感测光线投射点方向的亮度改变时间在缓冲数值之上时， 缓冲单元配合 微控制单元会将亮度改变时间与亮度的数值为整合计算， 经微控制单元、 脉宽 调制单元命令发光单元增加或降低发光亮度。
4.根据权利要求 1所述的车用智能灯光装置， 其特征在于， 该集光单元设于 反射杯处。
5.根据权利要求 1所述的车用智能灯光装置， 其特征在于， 该集光单元设有 感光半导体组件。
6.根据权利要求 1所述的车用智能灯光装置， 其特征在于， 该光线投射点距 灯体为水平距离 5-30公尺。
7.根据权利要求 1所述的车用智能灯光装置， 其特征在于， 该灯体进一步设 有一与微控制单元连接的调整单元， 该调整单元能够供手动调整发光单元的发 光效果。
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EP2913581A4 (en) 2016-07-27
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