WO2004079324A1 - ヘッドライトの光軸調整方法 - Google Patents
ヘッドライトの光軸調整方法 Download PDFInfo
- Publication number
- WO2004079324A1 WO2004079324A1 PCT/JP2004/002851 JP2004002851W WO2004079324A1 WO 2004079324 A1 WO2004079324 A1 WO 2004079324A1 JP 2004002851 W JP2004002851 W JP 2004002851W WO 2004079324 A1 WO2004079324 A1 WO 2004079324A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- headlight
- adjusted
- optical axis
- master
- light
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
- G01M11/06—Testing the alignment of vehicle headlight devices
- G01M11/064—Testing the alignment of vehicle headlight devices by using camera or other imaging system for the light analysis
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
- G01M11/06—Testing the alignment of vehicle headlight devices
- G01M11/064—Testing the alignment of vehicle headlight devices by using camera or other imaging system for the light analysis
- G01M11/065—Testing the alignment of vehicle headlight devices by using camera or other imaging system for the light analysis details about the image analysis
Definitions
- the present invention relates to a headlight optical axis adjustment method for adjusting a low beam optical axis of a headlight whose optical axis can be adjusted vertically, and more particularly to a low beam light of a headlight whose optical axis can be adjusted vertically.
- the light distribution pattern of the single beam irradiation light from the master headlight is adjusted a predetermined distance in front of the master headlight whose optical axis has been adjusted.
- an imaging screen which captures the light distribution pattern of the low beam irradiation light from the headlight to be adjusted in front of the headlight to be adjusted by the predetermined distance.
- the horizontal line and the diagonal line of the light-dark boundary line are detected based on the relative positional relationship with the reference point, and the adjusted point is set so that the intersection of the detected horizontal line and the diagonal line exists in the pass frame.
- a second step of adjusting the optical axis of the headlight are performed by the horizontal line and the diagonal line of the light-dark boundary line.
- the relative position relationship between the horizontal and diagonal lines of the light-dark boundary line and the brightest point, which is the reference point, is determined on the imaging screen that captures the low-beam irradiation light from the master headlight whose optical axis has been adjusted.
- the relative positional relationship determined by the master headlight is used on an imaging screen for imaging low beam irradiation light from the adjusted headlight.
- the horizontal line and the diagonal line are detected, and the optical axis of the headlight to be adjusted is adjusted so that the intersection of the horizontal line and the diagonal line is within the pass frame. It is already known in Japanese Patent Publication No.
- the reference point for detecting the horizontal line and the diagonal line of the light-dark boundary line on the imaging screen is the brightest point on the imaging screen, and this brightest point is the error in the valve mounting position. And unevenness due to reflector coating unevenness. others Therefore, even if the optical axis is adjusted so that the intersection of the horizontal line and the diagonal line of the light and dark boundary line falls within the acceptance frame, the actual optical axis may deviate from the acceptance criteria, and the optical axis adjustment quality and automobile May affect productivity.
- the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a method of adjusting the optical axis of a headlight that can improve the accuracy of optical axis adjustment.
- the present invention relates to a method of adjusting a low beam optical axis of a headlight capable of adjusting an optical axis in a vertical direction in a state where the headlight is attached to an automobile, and adjusting a light axis adjusted mass.
- On the imaging screen that captures the light distribution pattern of the mouth beam illuminating light from the master headlight a predetermined distance ahead of the evening headlight, the horizontal and diagonal lines of the light-dark boundary and the reference point A first step of determining a relative position relationship and setting a pass frame based on the imaging position of the intersection of the horizontal line and the diagonal line; and the predetermined distance in front of the adjusted headlight to be adjusted in optical axis by the predetermined distance.
- positions on the imaging screen corresponding to valve centers preset on the front lenses of the master headlight and the headlight to be adjusted are respectively defined as the reference points. This is the first feature.
- the relative positional relationship between the valve center preset on the front lens of the headlight that irradiates the low beam and the intersection on the light / dark boundary line varies due to errors in the valve mounting position in the headlight and uneven paint on the reflector.
- the positions on the imaging screen corresponding to the valve centers respectively set in advance on the front lenses of the master head light and the headlight to be adjusted are set as the reference points. Since the horizontal and diagonal lines of the light and dark boundary in the headlight to be adjusted are detected, and the optical axis is adjusted so that the intersection of the detected horizontal and diagonal lines falls within the pass frame, the light Axis adjustment accuracy Can be increased.
- the valve head in addition to the configuration of the first feature, in the first step, the valve head is set in a vertical direction and a horizontal direction which is set in advance on the front lens of the master head light. A reference point on the imaging screen is determined in accordance with the position measurement.
- the position of the bulb head preset on the front lens of the headlight to be adjusted is determined by the headlight to be adjusted.
- a second feature is that the position is estimated based on the projected light image of the reflected light from a part of the reflector provided on the screen, and the estimated position of the bulb sensor is used as the reference point.
- the optical axis adjustment of the headlight to be adjusted when performing the optical axis adjustment of the headlight to be adjusted, it is not necessary to measure the position of the bulb center of the front lens in the vertical direction and the horizontal direction, so that a large number of heads to be adjusted are required. It is possible to perform the optical axis adjustment of the light efficiently.
- FIG. 1 is a front view of a headlight
- FIG. 2 is a cross-sectional view taken along line 2-2 of FIG. 1
- FIG. Fig. 4 is a schematic plan view of the headlight when the optical axis is adjusted
- Fig. 4 is a schematic plan view of Fig. 3
- Fig. 5 is a diagram showing the light and dark boundaries on the screen
- Fig. Fig. 7 is a schematic left side view of Fig. 6
- Fig. 8 is a diagram showing the schematic configuration of the measurement unit
- Fig. 9 is an image screen of low-beam irradiation light from the master headlight.
- FIG. 10 is a diagram for explaining the projected light image from the master headlight to the screen
- Fig. 11 is a side view corresponding to Fig. 7 with the headlight to be adjusted facing the measurement unit
- Figure 12 shows the image of the low beam irradiation light from the headlight to be adjusted. It is.
- the housing 2 of the headlight 1 on the left side of the vehicle is formed in a bowl shape with an open front, and a front lens 3 is connected to a front open end of the housing 2 via a sealing member 4.
- a horizontally long accommodation room 5 is formed between the housing 2 and the front lens 3, and the accommodation room 5 has a high beam valve 6H, The low beam valve 6 L and the evening signal valve 6 T are arranged in order from the inside in the width direction of the vehicle.
- a reflector 7H, 7L, 7T surrounding each of the valves 61-1, 6L, 6T and an integral partition hood 8 for partitioning between the front openings of the reflectors 7H, 7L, 7T are provided.
- the partition hood 8 is accommodated in the accommodation room 5 and is sandwiched between the housing 2 and the front lens 3.
- Light distribution control shades 9H and 9L that cover the high beam valve 6H and the mouth beam valve 6L from the front, respectively, are supported by the reflectors 7H and 7L.
- Each of the reflectors 7H, 7L, 7T is supported by the housing 2 so as to form a gap 11 1..., 12 ... between the housing 2 and the partition hood 8.
- the reflector 7L of the beam valve 6L is supported by the housing 2 so that the optical axis of the one-beam valve 6L can be adjusted in the vertical direction.
- the portion of the front lens 3 corresponding to the low-beam valve 6 L is located at the intersection with the front extension line of the mouth beam valve 6 L when it is at the neutral position in the vertical direction.
- C is displayed by a stamp or the like.
- each reflector 7H, 7L, 7T is provided with a valve inlet 13H, 13L, 13T, and each valve inlet 13H, 13L, 13T.
- the sockets 14H, 14L, and 14T to which the valves 6H, 6L, and 6T are respectively attached are detachably mounted.
- the rear wall of the housing 2 has openings 15H, 15L, 15T corresponding to the sockets 14H, 14L, 14T. Is provided in the body, and is interposed between the sockets 14H, 14L, 14T arranged in the openings 15H, 15L, 15T and the insertion cylinders 17H, 17L, 17T.
- the openings 15 ⁇ , 15L, 15T are closed by rubber hoods 16H, 16L, 16T.
- the headlight on the right side of the vehicle is configured symmetrically with the left headlight 1 on the left.
- a headlight 1 In adjusting the optical axis of the irradiation light that is reflected from the low beam bulb 6 L by the reflector 7 L and emitted forward in such a headlight 1.
- Left and right headlights 1 A large number of headlights are measured in the vertical and horizontal directions of the valve center C in the lens 3, and the car showing the value near the center of the measured values is selected as the master car. Based on the level measurement results, a pair of left and right headlights 1 near the center of the light distribution level are attached to the master car as master headlights.
- the master vehicle V equipped with the left and right master headlights 1M is moved into the room, and the screen 18 arranged in the dark room is mounted on the truck 2 provided with the vehicle facing device 19.
- the master vehicle V on 0, 20 is directly opposed.
- the first set distance L1 between the valve center C ... of the left and right headlights 1M ... and the screen 18 provided on the master-vehicle V and the left and right headlights 1M ... is, for example, 10 m, which is the recommended value for vehicle inspection
- the positions of the bogies 20:20 of the vehicle facing device 19 are determined so that the valve centers C ... of the left and right master headlights 1M ... coincide with the vehicle stop reference position.
- the screen 18 Apply low beam sequentially from the left and right master heads 1 M... on top of 8.
- the low beam irradiation light to the screen 18 is, for example, in the case of the left mass headlight 1M, as shown in FIG. 5, a light-dark boundary line 21 having a horizontal line 21a and an oblique line 21b. Will be shown on screen 18.
- a light-dark boundary line 21 having a horizontal line 21a and an oblique line 21b.
- the screen 18 is a position that does not deviate left and right from the valve center C... of the left and right master headlights 1 M... and from the height H of the valve center C to ⁇ H. Is required to be adjusted so that the intersection point 21c between the horizontal line 21a and the diagonal line 21b at the light-dark boundary line 21 is located at the set position defined as 10 cm below.
- the optical axes of the left and right master headlights 1M are sequentially adjusted so that the intersection 21c is located at the marking point MP marked on the set position on 18.
- the optical axis measuring device 24 installed in the optical axis inspection process includes a pair of right and left measurement units 25 and 25 arranged in front of the master vehicle V, and left and right front portions of the master vehicle V. Monitors 26 and 26 and a measurement operation panel 27 are provided.
- the foremost carriage 23 of the carriages 23 provided in the vehicle facing device 22 is located between the two measurement units 25 and 25 in the second direction.
- the vehicle is stopped at a position where the set distance L2 is left, and the second set distance L2 is shorter than the first set distance L1, and is set to, for example, 360 mm.
- both measurement units 25, 25 can be adjusted vertically in conjunction with each other, and the distance from the center line between the two measurement units 25, 25 can be adjusted, respectively.
- both measurement units 25 , 25 move up, down, left and right so that their centers are aligned with the valve heads C of both master headlights 1 M at the front end of the master vehicle V, and face the valve centers C, respectively.
- a housing 28 included in the measurement unit 25 includes a light distribution detection window 29 and a valve center detection window 30 located below the light distribution detection window 29. They are provided so as to face each other.
- a reflecting mirror 31 for reflecting light incident from the bulb center one detection window 30 and a screen 32 for projecting the reflected light of the reflecting mirror 31 are fixedly arranged.
- a CCD camera 33 that captures the light incident from the light distribution detection window 29 and the projected light image on the screen 32 is fixedly arranged.
- the light distribution pattern of the low beam irradiation light from the master headlight 1M that has entered the light distribution detection window 29 appears at the top of the screen of the monitor 26 as shown in Fig. 9 by imaging with the CCD camera 33.
- the monitor 26 has a horizontal line on the screen A horizontal line cursor 34 for adjusting the position and width is displayed, and a diagonal line cursor 35 for setting the diagonal line is displayed so that the position, width and inclination angle can be adjusted. ing.
- the reference point BP corresponding to the valve center C is displayed.
- a light-dark boundary line 36 is displayed on the imaging screen, and a horizontal line cursor 34 and a diagonal line are placed on the stable horizontal line 36 a and the diagonal line 36 b at the light-dark boundary line 36.
- the relative positional relationship includes a distance L4 between the reference point BP and the center of the horizontal line 36a, a width W1 of the horizontal line 36a, a distance L between the reference point BP and the center of the diagonal line 36b. 5.
- the set values are registered in the CPU built in the measurement operation panel 27. Also, the intersection 36c of the horizontal line 36a and the diagonal line 36b of the light-dark boundary line 36 determined by the horizontal line cursor 34 and the diagonal line cursor 35 is determined, and the pass frame is based on the imaging position of the intersection 36c. 3 Set 8 and register to the CPU.
- the estimated position EP is displayed shifted downward and upward from the intersection of the upper, lower, left and right reference lines, and when the valve center C moves left and right, the screen 3 2 At the top, the estimated position EP is displayed shifted to the right and left from the intersection of the upper, lower, left and right reference lines, and the amount of shift in the vertical direction is displayed in the window 39, and the amount of shift in the horizontal direction is displayed. Will be displayed in window 40.
- “0” is displayed in the windows 39, 40.
- the adjusted vehicle V ′ having the adjusted headlights 1A to be adjusted in the optical axis is moved to the adjusted vehicle V ′. It is brought to the front of both measuring units 25, 25, and the distance between the valve center C... of the headlight 1A to be adjusted and the measuring unit 25... is set to the set distance (L2—L3). A low beam is emitted from the headlights 1 A ... forward.
- the imaging screen obtained by imaging the light distribution pattern of the one-beam irradiation light from the headlight 1A to be adjusted by the CCD camera 33 is displayed on the monitor 26 as shown in Fig. 12. become.
- the horizontal line 4 1a and the oblique line 4 1 at the light-dark boundary line 41 displayed on the imaging screen are displayed.
- the intersection of the detected horizontal line 4 1a and the diagonal line 4 1b is found, and the optical axis of the headlight 1A to be adjusted is adjusted so that the intersection 4 1c is within the passing frame 38.
- the low beam from the master headlight 1M is located a predetermined distance ahead of the master headlight 1M whose optical axis has been adjusted.
- the relative positional relationship between the horizontal line 36a and the diagonal line 36b of the light / dark boundary line 36 and the reference point BP was determined, and the horizontal line 36a and A first step of setting a pass frame 38 based on the imaging position of the intersection 36c of the diagonal line 36b, and the adjusted headlight 1A to be adjusted by the predetermined distance ahead of the adjusted headlight 1A to be adjusted.
- the horizontal line 41a of the light-dark boundary line 41 and the horizontal line 41a based on the relative positional relationship with the reference point BP.
- a second step of adjusting the optical axis of the headlight 1A to be adjusted so that the intersection point 4 1c of the horizontal line 4 1a and the oblique line 4 1b that is detected is within the acceptance box 38.
- the first and second steps correspond to the valve centers C set in advance on the front lens 3 of the master headlight 1M and the headlight 1A to be adjusted, respectively.
- the position on the imaging screen described above is determined as a reference point BP.
- the relative positional relationship between the valve center C preset on the front lens 3 of the headlight 1 for irradiating the low beam and the intersections 36c and 41c based on the light boundary lines 36 and 41 is as follows.
- the headlight 1 is unlikely to have an error in the valve mounting position and unevenness due to uneven coating of the reflector 7 L.
- the front lens 3 of the master headlight 1 M and the headlight 1 A to be adjusted are not affected.
- the horizontal line 4 1a and the diagonal line 4 1b of the light-dark boundary line 4 1 in the headlight 1A are adjusted so that the intersection 4 1 c of the detected horizontal line 4 1 a and the diagonal line 4 1 b falls within the acceptance frame 38, so that the accuracy of the optical axis adjustment is improved. Becomes possible.
- the image is taken according to the position measurement in the vertical and horizontal directions of the bulb sensor C preset on the front lens 3 of the master headlight 1M.
- a reference point BP on the screen is determined, and in the second step, a preset point is set on the front lens 3 of the headlight 1A to be adjusted.
- the position of the valve center C is estimated based on the projected light image of the reflected light from a part of the reflector 7 L of the adjusted headlight 1 A onto the screen 32, and the estimated position of the valve center C is adjusted.
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/547,387 US7275847B2 (en) | 2003-03-06 | 2004-03-05 | Headlamp optical axis adjusting method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-059664 | 2003-03-06 | ||
JP2003059664A JP3819859B2 (ja) | 2003-03-06 | 2003-03-06 | ヘッドライトの光軸調整方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004079324A1 true WO2004079324A1 (ja) | 2004-09-16 |
Family
ID=32958857
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/002851 WO2004079324A1 (ja) | 2003-03-06 | 2004-03-05 | ヘッドライトの光軸調整方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7275847B2 (ja) |
JP (1) | JP3819859B2 (ja) |
CN (1) | CN100520338C (ja) |
WO (1) | WO2004079324A1 (ja) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7576505B2 (en) * | 2007-06-21 | 2009-08-18 | Jack Chen | Device for finding a home position for a moveable member |
JP4863957B2 (ja) * | 2007-09-18 | 2012-01-25 | 株式会社小糸製作所 | 光軸検査方法及び光軸検査装置 |
CN101556208B (zh) * | 2008-04-10 | 2010-12-15 | 天津圣纳科技有限公司 | 智能灯光自动检测分析系统及其检测方法 |
US8480270B2 (en) * | 2008-06-04 | 2013-07-09 | Koito Manufacturing Co., Ltd. | Headlamp aiming system |
US7876427B1 (en) | 2009-01-17 | 2011-01-25 | Stephen Waller Melvin | Headlamp alignment detection using a network of independent sensor units |
US8125628B1 (en) | 2009-01-17 | 2012-02-28 | Lones Joe J | Light baffling apparatus for headlamp sensor |
US8928869B2 (en) * | 2011-10-10 | 2015-01-06 | Ford Global Technologies, Llc | Dynamic headlamp aim buy-off window |
CN103926060B (zh) * | 2012-06-20 | 2016-04-27 | 东软集团股份有限公司 | 基于立面的车辆前照灯照射角度检测方法、装置及系统 |
CZ2013216A3 (cs) * | 2013-03-25 | 2014-10-08 | Ĺ KODA AUTO a.s. | Systém umělé perspektivy simulující pokračující vozovku |
US20150377444A1 (en) * | 2014-06-26 | 2015-12-31 | Chin-Shu Yin | Headlight Switching Device for Car |
CN106768901A (zh) * | 2016-12-06 | 2017-05-31 | 吴明 | 机动车近光灯光束中点高度的检测方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0238940A (ja) * | 1988-07-29 | 1990-02-08 | Mazda Motor Corp | ヘッドライトの光軸調整方法 |
JP6105212B2 (ja) * | 2012-05-17 | 2017-03-29 | 松本油脂製薬株式会社 | アルキレンオキサイド付加物、その製造方法および用途 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1003674B (zh) * | 1986-06-18 | 1989-03-22 | 汽车电子设备仪表科学与实验研究院 | 用于检查车辆前灯装置的设备 |
CN86104318B (zh) * | 1986-06-21 | 1988-06-08 | 汽车电器设备及自动仪器科学研究试验院 | 测试车辆前灯用的设备和方法 |
JPH06105212B2 (ja) | 1986-10-30 | 1994-12-21 | マツダ株式会社 | ヘツドライトの主光軸検査方法 |
JP3015997B2 (ja) * | 1993-12-28 | 2000-03-06 | 本田技研工業株式会社 | ヘッドライトの光軸調整用計測装置及び光軸調整方法 |
-
2003
- 2003-03-06 JP JP2003059664A patent/JP3819859B2/ja not_active Expired - Fee Related
-
2004
- 2004-03-05 US US10/547,387 patent/US7275847B2/en not_active Expired - Fee Related
- 2004-03-05 WO PCT/JP2004/002851 patent/WO2004079324A1/ja active Application Filing
- 2004-03-05 CN CNB2004800061635A patent/CN100520338C/zh not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0238940A (ja) * | 1988-07-29 | 1990-02-08 | Mazda Motor Corp | ヘッドライトの光軸調整方法 |
JP6105212B2 (ja) * | 2012-05-17 | 2017-03-29 | 松本油脂製薬株式会社 | アルキレンオキサイド付加物、その製造方法および用途 |
Also Published As
Publication number | Publication date |
---|---|
US20060239019A1 (en) | 2006-10-26 |
US7275847B2 (en) | 2007-10-02 |
JP2004271260A (ja) | 2004-09-30 |
CN100520338C (zh) | 2009-07-29 |
JP3819859B2 (ja) | 2006-09-13 |
CN1756943A (zh) | 2006-04-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5092613B2 (ja) | 距離計測方法および装置、ならびに距離計測装置を備えた車両 | |
JP5835595B2 (ja) | 照明ドライビング補助システムを試験するための方法及び装置 | |
WO2004079324A1 (ja) | ヘッドライトの光軸調整方法 | |
JPH0238940A (ja) | ヘッドライトの光軸調整方法 | |
KR20190126807A (ko) | 트레드 라인 스캐너 | |
WO2015019693A1 (ja) | 光軸角度検査装置 | |
JP4840861B2 (ja) | ヘッドライトテスタ | |
JPH07234174A (ja) | ヘッドライトの光軸調整用計測装置及び光軸調整方法 | |
RU2491502C2 (ru) | Способ и устройство измерения зазора и выравнивания между деталями, закрепленными на узле при отсутствии одной из них | |
JP5567441B2 (ja) | 車載カメラの光軸検査方法及び光軸検査装置 | |
JP5547580B2 (ja) | 撮像カメラ及びこれを用いた車両検出装置とランプ制御装置 | |
JP4557780B2 (ja) | ヘッドライトテスタにおける正対装置 | |
JP4622637B2 (ja) | 車載カメラ姿勢補正装置および車載カメラ姿勢補正方法 | |
KR20120016323A (ko) | 헤드램프 조정 장치 및 방법 | |
JP2005300477A (ja) | ヘッドライトテスター | |
JP2023536676A (ja) | 車両の少なくとも1つのヘッドランプをキャリブレーションするためのadasキャリブレーションシステム | |
JP4435297B2 (ja) | ヘッドライトテスタ位置決め装置 | |
JP3798188B2 (ja) | 形状変化測定装置 | |
JPS63186123A (ja) | ヘツドライト光軸検査装置 | |
JP4211483B2 (ja) | 車載カメラの露光制御装置 | |
JP2008026021A (ja) | 下向きヘッドライトの光軸調整方法におけるエルボー点検出方法 | |
JP3595480B2 (ja) | 障害物検知装置の光源角度計測装置 | |
JPH0320755Y2 (ja) | ||
JPH07333105A (ja) | ヘッドランプの光軸検査装置 | |
JPH06221960A (ja) | ヘッドライトの光源位置測定方法及び光軸測定方法並びに測定装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 20048061635 Country of ref document: CN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2006239019 Country of ref document: US Ref document number: 10547387 Country of ref document: US |
|
122 | Ep: pct application non-entry in european phase | ||
WWP | Wipo information: published in national office |
Ref document number: 10547387 Country of ref document: US |