WO2016110919A1 - 照明装置と、照明装置を搭載した自動車 - Google Patents
照明装置と、照明装置を搭載した自動車 Download PDFInfo
- Publication number
- WO2016110919A1 WO2016110919A1 PCT/JP2015/006389 JP2015006389W WO2016110919A1 WO 2016110919 A1 WO2016110919 A1 WO 2016110919A1 JP 2015006389 W JP2015006389 W JP 2015006389W WO 2016110919 A1 WO2016110919 A1 WO 2016110919A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wavelength conversion
- conversion member
- light source
- laser light
- lens barrel
- Prior art date
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Classifications
-
- 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
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
- F21S41/16—Laser light sources
-
- 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
- B60Q11/00—Arrangement of monitoring devices for devices provided for in groups B60Q1/00 - B60Q9/00
-
- 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
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
- F21S41/176—Light sources where the light is generated by photoluminescent material spaced from a primary light generating element
-
- 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
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/25—Projection lenses
-
- 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
- F21S41/32—Optical layout thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
- F21S45/70—Prevention of harmful light leakage
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/022—Mountings; Housings
- H01S5/0239—Combinations of electrical or optical elements
Definitions
- the present invention relates to, for example, an illuminating device used as a headlight of an automobile and an automobile equipped with the same.
- An illumination device using a laser light source can control the illumination area, so it has been proposed to be used as, for example, an automobile headlight.
- laser light is coherent light, the illumination device itself is damaged.
- the following configuration is adopted as a safety measure to prevent direct exposure to the eyes.
- a laser light source a wavelength conversion member disposed in the light irradiation direction from the laser light source, a light projecting lens disposed in the light irradiation direction from the wavelength conversion member, and a sensor for detecting reflected light from the wavelength conversion member
- a control unit connected to the sensor, and the control unit is configured to stop the laser light source when the amount of light detected by the sensor falls below a predetermined value.
- the present invention aims to enhance convenience.
- the present invention provides a laser light source, a wavelength conversion member disposed in the light irradiation direction from the laser light source, and a light projecting lens disposed in the light irradiation direction from the wavelength conversion member.
- a lens barrel is provided between the laser light source and the wavelength conversion member, and a low reflection surface area is disposed on the laser light source side and a high reflection surface area is disposed on the wavelength conversion member side of the inner wall surface of the lens barrel.
- a sensor for detecting the amount of light wavelength-converted by the wavelength conversion member is disposed on the light projection lens side or on the side opposite to the wavelength conversion member of the light projection lens.
- a control unit is connected to the sensor, and a laser light source and an alarm are connected to the control unit, thereby achieving the intended purpose.
- the lens barrel is provided between the laser light source and the wavelength conversion member, light from the laser light source hardly leaks out of the wavelength conversion member, and safety is improved.
- the lens barrel inner wall surface has a low reflection surface area on the laser light source side and a high reflection surface area on the wavelength conversion member side, even if the axes of the laser light source and the lens barrel are slightly shifted, Due to the high reflection surface area, part of the light from the laser light source reaches the light projecting lens through the wavelength conversion member.
- the axes of the laser light source and the lens barrel are greatly deviated, the light from the laser light source will not reach the light projecting lens through the wavelength conversion member, so that illumination cannot be performed.
- the light amount of the light wavelength-converted by the wavelength conversion member is detected by a sensor provided on the light conversion lens side of the wavelength conversion member or on the opposite side of the light conversion lens. Since the failure can be notified by the device, it can be made highly safe.
- the front view which shows the motor vehicle carrying the illuminating device of Embodiment 1 of this invention.
- Operation flowchart of lighting device of embodiment 1 of the present invention The partially expanded sectional view of the lens-barrel of the illuminating device of Embodiment 1 of this invention.
- the perspective view which shows the manufacturing method of the lens-barrel of the illuminating device of Embodiment 1 of this invention.
- the wavelength conversion member is not damaged, and the laser light source is stopped despite the fact that the illumination can be performed sufficiently, so that the road cannot be illuminated, which is extremely inconvenient. Obviously, in this state, the wavelength conversion member is not damaged, and the laser light source is stopped despite the fact that the illumination can be performed sufficiently, so that the road cannot be illuminated, which is extremely inconvenient. Obviously, in this state, the wavelength conversion member is not damaged, and the laser light source is stopped despite the fact that the illumination can be performed sufficiently, so that the road cannot be illuminated, which is extremely inconvenient. Become.
- lighting devices 3 called headlights are arranged on both the left and right sides in front of the main body 2 of the automobile 1.
- the lighting device 3 has a configuration shown in FIG.
- the illumination device 3 includes a main body case 5 having an opening 4 on the front surface side, an outer lens 6 attached to the opening 4, and a laser light source 7 provided in the main body case 5.
- wavelength conversion is performed by the lens barrel 9 a, the collimator lens 8, the lens barrel 9 b, the wavelength conversion member 10, the light projecting lens 11, and the wavelength conversion member 10 that are sequentially arranged in the light irradiation direction of the laser light source 7.
- the sensor 12 detects the amount of light.
- the lens barrels 9a and 9b have a cylindrical shape, and the collimating lens 8 is sandwiched between the lens barrels 9a and 9b.
- the collimating lens 8 is disposed on the end surface of the lens barrel 9b on the laser light source 7 side, and the wavelength conversion member 10 is disposed on the end surface of the lens barrel 9b on the light projecting lens 11 side.
- the inner surface on the laser light source 7 side obtained by dividing the lens barrel 9b by about half of the longitudinal direction is a low reflection surface area A, and the inner surface on the wavelength conversion member 10 side of the lens barrel 9b is a high reflection surface area B. .
- the light from the laser light source 7 is converged in the central axis direction by the collimating lens 8, so that the light from the laser light source 7 does not reach the low reflection surface area A.
- the high reflection surface area B reflects the light from the laser light source 7 that has reached here in the direction of the wavelength conversion member 10 so that the light travels efficiently.
- the lens barrel 9b is made of cylindrical metal (for example, made of aluminum), and is arranged on the base 13 with the low reflection surface area A side down as shown in FIG. Is inserted into the low reflection surface area A of the lens barrel 9b.
- the base 13 and the columnar protrusion 14 are formed of an insulating material, and an insulating coating is provided on the outer peripheral surface of the lens barrel 9b.
- the highly reflective surface area B is formed by the aluminum plating layer 15.
- a step 16 having a shape in which the inner diameter of the lens barrel 9b is reduced is formed at the boundary between the low reflection surface area A and the high reflection surface area B of the lens barrel 9b.
- the sensor 12 for detecting the light amount of the light wavelength-converted by the wavelength conversion member 10 is connected to the control unit 17 as shown in FIG.
- the control unit 17 is further connected to a notification device 18, a memory 19 storing a program for executing the operation flowchart shown in FIG. 4, and an operation device 20.
- the control unit 17 activates the laser light source 7 to perform illumination in front of the automobile 1 (FIG. 4 S2).
- the light from the laser light source 7 is, for example, blue light, which is converged in the central axis direction by the collimating lens 8, travels in the lens barrel 9b, is converted into white light by the wavelength conversion member 10, and then The light is irradiated in front of the automobile 1 through the light projecting lens 11 and the outer lens 6 to illuminate a road or the like.
- the low reflection surface area A is arranged on the laser light source 7 side and the high reflection surface area B is arranged on the wavelength conversion member 10 side of the inner wall surface of the lens barrel 9b. Even if the axes of the lens 7 and the lens barrel 9b are slightly deviated from each other, a part of the light from the laser light source 7 reaches the light projecting lens 11 through the wavelength conversion member 10 by the high reflection surface area B as shown by the broken line in FIG. Will be.
- the axes of the laser light source 7 and the lens barrel 9b are greatly displaced due to an excessive impact or the like, the light from the laser light source 7 does not reach the light projecting lens 11 via the wavelength conversion member 10, and illumination cannot be performed.
- the sensor 12 provided on the opposite side of the light projection lens 11 from the wavelength conversion member 10 detects the light amount of the light converted by the wavelength conversion member 10. Therefore, such a failure can be immediately identified.
- the axes of the laser light source 7 and the lens barrel 9b are greatly displaced, the light from the laser light source 7 does not reach the light projecting lens 11 via the wavelength conversion member 10, so that the amount of light reaching the sensor 12 also exceeds a predetermined value.
- the sensor 12 detects this (S3 in FIG. 4).
- the controller 17 issues a light abnormality alarm to the driver from the alarm 18, so that the driver can detect the abnormality of the lighting device 3 and turn off the lighting device, which is highly safe ( S4 in FIG.
- the laser light source 7 is stopped (S5 in FIG. 4).
- a step portion 16 having a shape in which the inner diameter of the lens barrel 9b is reduced is formed at the boundary between the low reflection surface area A and the high reflection surface area B on the inner surface of the lens barrel 9b. Therefore, if the light from the laser light source 7 hits near the step 16 (low reflection surface area A), the light component close to the horizontal direction is reflected by the step 16, so that the wavelength conversion is performed. The amount of light traveling toward the light projecting lens 11 through the member 10 is extremely reduced.
- the sensor 12 is provided on the side opposite to the wavelength conversion member 10 of the light projection lens 11, but the sensor 12 may be provided on the light projection lens 11 side of the wavelength conversion member 10.
- the lens barrel is provided between the laser light source and the wavelength conversion member, light from the laser light source hardly leaks out of the wavelength conversion member, and the safety is improved.
- the lens barrel inner wall surface has a low reflection surface area on the laser light source side and a high reflection surface area on the wavelength conversion member side, even if the axes of the laser light source and the lens barrel are slightly shifted, Due to the high reflection surface area, part of the light from the laser light source reaches the light projecting lens through the wavelength conversion member.
- the lighting device according to one embodiment of the present invention is expected to be used as a lighting device and a car equipped with the lighting device.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
Description
図1において、自動車1の本体ボディ2の前方の左右両側には、ヘッドライトと言われる照明装置3が配置されている。
2 本体ボディ
3 照明装置
4 開口部
5 本体ケース
6 アウターレンズ
7 レーザー光源
8 コリメートレンズ
9a 鏡筒
9b 鏡筒
10 波長変換部材
11 投光レンズ
12 センサー
13 基台
14 円柱状突起
15 めっき層
16 段部
17 制御部
18 報知器
19 メモリ
20 操作器
A 低反射面エリア
B 高反射面エリア
Claims (5)
- レーザー光源と、前記レーザー光源からの光照射方向に配置した波長変換部材と、前記波長変換部材からの光照射方向に配置した投光レンズとを備え、
前記レーザー光源と前記波長変換部材の間に、鏡筒を設けるとともに、前記鏡筒内壁面の、前記レーザー光源側には低反射面エリア、前記波長変換部材側には高反射面エリアを配置し、
前記波長変換部材の前記投光レンズ側、または前記投光レンズの前記波長変換部材とは反対側に、前記波長変換部材によって波長変換された光の光量を検出するセンサーを配置し、
前記センサーには制御部を接続するとともに、前記制御部には前記レーザー光源と、報知器を接続した照明装置。 - 前記鏡筒の前記レーザー光源側端面に、コリメートレンズを配置し、前記鏡筒の前記投光レンズ側端面に、波長変換部材を配置した請求項1に記載の照明装置。
- 前記鏡筒の低反射面エリアは、前記鏡筒の素材面で形成し、前記鏡筒の高反射面エリアは、鏡筒内壁面に形成しためっき層によって形成した請求項1または2に記載の照明装置。
- 前記鏡筒の低反射面エリアと高反射面エリア境界には、前記鏡筒の内径が小さくなる形状の段部を形成した請求項1から3のいずれか一つに記載の照明装置。
- 請求項1から4のいずれか一つに記載の照明装置を、本体ボディの前方側に搭載した自動車。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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JP2016568179A JP6603886B2 (ja) | 2015-01-09 | 2015-12-22 | 照明装置と、照明装置を搭載した自動車 |
DE112015005912.1T DE112015005912T5 (de) | 2015-01-09 | 2015-12-22 | Beleuchtungsvorrichtung und mit der Beleuchtungsvorrichtung versehenes Fahrzeug |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2015-002728 | 2015-01-09 | ||
JP2015002728 | 2015-01-09 |
Publications (1)
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WO2016110919A1 true WO2016110919A1 (ja) | 2016-07-14 |
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Application Number | Title | Priority Date | Filing Date |
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PCT/JP2015/006389 WO2016110919A1 (ja) | 2015-01-09 | 2015-12-22 | 照明装置と、照明装置を搭載した自動車 |
Country Status (3)
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JP (1) | JP6603886B2 (ja) |
DE (1) | DE112015005912T5 (ja) |
WO (1) | WO2016110919A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016117411A1 (de) | 2016-09-15 | 2018-03-15 | Varroc Lighting Systems, s.r.o. | System zur Beleuchtung für ein Kraftfahrzeug mit einer Laserlichtquelle |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009210715A (ja) * | 2008-03-03 | 2009-09-17 | Ricoh Co Ltd | 光源装置並びにそれを用いた光走査装置および画像形成装置 |
JP2013168586A (ja) * | 2012-02-16 | 2013-08-29 | Sharp Corp | 発光装置、半導体レーザ素子、車両用前照灯、および照明装置 |
JP2014032350A (ja) * | 2012-08-06 | 2014-02-20 | Nichia Chem Ind Ltd | ビームホモジナイザー及びそれを用いた光学エンジン |
JP2014116081A (ja) * | 2012-12-06 | 2014-06-26 | Stanley Electric Co Ltd | 発光装置及び車両用灯具 |
-
2015
- 2015-12-22 WO PCT/JP2015/006389 patent/WO2016110919A1/ja active Application Filing
- 2015-12-22 DE DE112015005912.1T patent/DE112015005912T5/de not_active Ceased
- 2015-12-22 JP JP2016568179A patent/JP6603886B2/ja active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009210715A (ja) * | 2008-03-03 | 2009-09-17 | Ricoh Co Ltd | 光源装置並びにそれを用いた光走査装置および画像形成装置 |
JP2013168586A (ja) * | 2012-02-16 | 2013-08-29 | Sharp Corp | 発光装置、半導体レーザ素子、車両用前照灯、および照明装置 |
JP2014032350A (ja) * | 2012-08-06 | 2014-02-20 | Nichia Chem Ind Ltd | ビームホモジナイザー及びそれを用いた光学エンジン |
JP2014116081A (ja) * | 2012-12-06 | 2014-06-26 | Stanley Electric Co Ltd | 発光装置及び車両用灯具 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016117411A1 (de) | 2016-09-15 | 2018-03-15 | Varroc Lighting Systems, s.r.o. | System zur Beleuchtung für ein Kraftfahrzeug mit einer Laserlichtquelle |
DE102016117411B4 (de) * | 2016-09-15 | 2020-03-26 | Varroc Lighting Systems, s.r.o. | System zur Beleuchtung für ein Kraftfahrzeug mit einer Laserlichtquelle |
US10760755B2 (en) | 2016-09-15 | 2020-09-01 | Varroc Lighting Systems, s.r.o. | Lighting system with a laser light source for a motor vehicle |
Also Published As
Publication number | Publication date |
---|---|
JPWO2016110919A1 (ja) | 2017-10-19 |
JP6603886B2 (ja) | 2019-11-13 |
DE112015005912T5 (de) | 2017-09-28 |
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