JP7217367B2 - 光照射装置 - Google Patents
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- JP7217367B2 JP7217367B2 JP2021566899A JP2021566899A JP7217367B2 JP 7217367 B2 JP7217367 B2 JP 7217367B2 JP 2021566899 A JP2021566899 A JP 2021566899A JP 2021566899 A JP2021566899 A JP 2021566899A JP 7217367 B2 JP7217367 B2 JP 7217367B2
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- 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
- F21S41/141—Light emitting diodes [LED]
- F21S41/143—Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
- F21K9/64—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using wavelength conversion means distinct or spaced from the light-generating element, e.g. a remote phosphor layer
-
- 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
- F21S41/141—Light emitting diodes [LED]
- F21S41/151—Light emitting diodes [LED] arranged in one or more lines
-
- 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
- F21S41/255—Lenses with a front view of circular or truncated circular outline
-
- 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
- F21S41/285—Refractors, transparent cover plates, light guides or filters not provided in groups F21S41/24 - F21S41/2805
-
- 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
- F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
- F21S41/65—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources
- F21S41/663—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by switching light sources
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/50—Wavelength conversion elements
- H01L33/501—Wavelength conversion elements characterised by the materials, e.g. binder
- H01L33/502—Wavelength conversion materials
- H01L33/504—Elements with two or more wavelength conversion materials
-
- 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
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
- H05B47/115—Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
- F21W2102/10—Arrangement or contour of the emitted light
- F21W2102/13—Arrangement or contour of the emitted light for high-beam region or low-beam region
- F21W2102/135—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions
- F21W2102/14—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions having vertical cut-off lines; specially adapted for adaptive high beams, i.e. wherein the beam is broader but avoids glaring other road users
- F21W2102/145—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions having vertical cut-off lines; specially adapted for adaptive high beams, i.e. wherein the beam is broader but avoids glaring other road users wherein the light is emitted between two parallel vertical cutoff lines, e.g. selectively emitted rectangular-shaped high beam
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
- F21W2102/10—Arrangement or contour of the emitted light
- F21W2102/13—Arrangement or contour of the emitted light for high-beam region or low-beam region
- F21W2102/135—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions
- F21W2102/14—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions having vertical cut-off lines; specially adapted for adaptive high beams, i.e. wherein the beam is broader but avoids glaring other road users
- F21W2102/15—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions having vertical cut-off lines; specially adapted for adaptive high beams, i.e. wherein the beam is broader but avoids glaring other road users wherein the light is emitted under L-shaped cut-off lines, i.e. vertical and horizontal cutoff lines
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
- H01L25/16—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof the devices being of types provided for in two or more different main groups of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. forming hybrid circuits
- H01L25/167—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof the devices being of types provided for in two or more different main groups of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. forming hybrid circuits comprising optoelectronic devices, e.g. LED, photodiodes
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- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Description
[構成]
まず、実施の形態1に係る光照射装置100の構成について、図面を用いて説明する。
光照射装置100が実行する光照射方法における具体的な処理手順について図9~図10Bを用いて説明する。
以上のように、本実施の形態に係る光照射装置100は、第1光源4と、第2光源5と、検出装置1とを備える。第2光源5が放つ第2光の第2ピーク波長は、第1光源4が放つ第1光の第1ピーク波長よりも短い。さらに、検出装置1が第1光及び第2光が照射される位置に対象物があることを検出した場合に、光照射装置100は、第1光の光束を減少させ、第2光の光束を増加させる。
実施の形態1においては、第1ピーク波長及び第2ピーク波長のそれぞれは、近紫外から緑までの波長領域にあったが、これに限られない。以下に説明する実施の形態1の変形例1~3においては、第1ピーク波長及び第2ピーク波長は、実施の形態1とは異なる波長領域にあってもよい。
本変形例では、第1光及び第2光における第1ピーク波長及び第2ピーク波長は、いずれも413nm以上505nm以下であってもよい。
上記構成とすることで、被験者(例えば、歩行者)は、第1光よりも第2光を眩しく感じにくい。
本変形例においては、第1ピーク波長は、450nm以上であり、第2ピーク波長は、450nm未満であってもよい。
本変形例においては、第1ピーク波長及び第2ピーク波長は、いずれも420nm以上470nm以下であってもよい。
実施の形態1においては、対象物を検出した場合の灯体3が放つ光の暗所視の輝度は、対象物を検出していない場合の灯体3が放つ光の暗所視の輝度よりも低い例が示された。実施の形態2においては、当該例とは異なる挙動が示される。
上記構成とすることで、被験者(例えば、歩行者)は、第1光よりも第2光を眩しく感じにくい。
実施の形態1においては、対象物を検出した場合の灯体3が放つ光の暗所視の輝度は、対象物を検出していない場合の灯体3が放つ光の暗所視の輝度よりも低い例が示された。実施の形態2においては、当該例とは異なる挙動が示される。
上記構成とすることで、被験者(例えば、本実施の形態に係る光照射装置を備える自動車を運転する運転者)の視認性が低下し難い。
実施の形態4においては、実施の形態1、2及び3に適用可能な発光モジュールについて説明する。
以上、本開示に係る光照射装置及び発光モジュールについて、実施の形態および各変形例に基づいて説明したが、本開示は、これらの実施の形態および各変形例に限定されるものではない。本開示の主旨を逸脱しない限り、当業者が思いつく各種変形を実施の形態に施したものや、実施の形態および各変形例における一部の構成要素を組み合わせて構築される別の形態も、本開示の範囲に含まれる。
2 制御装置
3、31、32、33、34、35、36、37、38 灯体
4 第1光源
5 第2光源
6 ハイビームユニット
7 ロービームユニット
8 灯体ユニット
9 第1白色光源
10 第2白色光源
11 基板
41 波長変換層
42 発光素子
43 バンプ
44 基板
45 光学部材
51 波長変換層
52 発光素子
53 バンプ
54 基板
55 光学部材
91 第1波長変換部材
92 第1励起源
93 バンプ
95 光学部材
100 光照射装置
101 第2波長変換部材
102 第2励起源
103 バンプ
105 光学部材
1000 発光モジュール
A1、A2、A3、A4、A5、A6、A7、A8 位置
Claims (8)
- 発光スペクトルにおいて420nm以上470nm以下の領域で強度が最大となる第1ピーク波長を持つ第1光を放つ第1光源と、
発光スペクトルにおいて420nm以上470nm以下の領域で強度が最大となる第2ピーク波長を持ち、かつ、前記第1光と同一の位置に照射される第2光を放つ第2光源と、
所定の位置に対象物があるかどうかを検出する検出装置と、
を備え、
前記第2ピーク波長は、前記第1ピーク波長よりも短く、
前記検出装置が前記位置に前記対象物があることを検出した場合に、前記第1光の光束を減少させ、前記第2光の光束を増加させる
光照射装置。 - さらに、前記第1光源、前記第1光を導光又は集光する第1光学部材、前記第2光源、及び、前記第2光を導光又は集光する第2光学部材を有する灯体を備え、
前記対象物があることを検出した場合の前記灯体が放つ光の暗所視の輝度は、前記対象物があることを検出していない場合の前記灯体が放つ光の暗所視の輝度よりも低い
請求項1に記載の光照射装置。 - 前記第1ピーク波長のピーク強度をF1、及び、前記第1ピーク波長をλ1とし、前記第2ピーク波長のピーク強度をF2、及び、前記第2ピーク波長をλ2としたとき、
F2/F1<(20×λ1-8250)/(20×λ2-8250)
を満足する
請求項1又は2に記載の光照射装置。 - 前記第1ピーク波長は、450nm以上470nm以下であり、
前記第2ピーク波長は、420nm以上450nm未満である
請求項1~3のいずれか1項に記載の光照射装置。 - 前記第1光の放射束をI1とし、前記第2光の放射束をI2、及び、前記第2ピーク波長をλ2としたとき、
I2/I1<2.00×10-3×(λ2-443)2+1.00
を満足する
請求項1~4のいずれか1項に記載の光照射装置。 - 前記検出装置が前記対象物があることを検出した場合に、
前記第1光源は、点灯状態から消灯状態へ変化し、
前記第2光源は、消灯状態から点灯状態へ変化する
請求項1~5のいずれか1項に記載の光照射装置。 - さらに、前記第1光源、前記第1光を導光又は集光する第1光学部材、前記第2光源、及び、前記第2光を導光又は集光する第2光学部材を有する灯体を備え、
前記対象物があることを検出した場合の前記灯体が放つ光の光束は、前記対象物があることを検出していない場合の前記灯体が放つ光の光束の50%よりも高い
請求項1に記載の光照射装置。 - 前記第1光の放射束をI1とし、前記第2光の放射束をI2、前記第2ピーク波長をλ2としたとき、
I2/I1>7.84×10-4×(λ2-439)2+5.05×10-1
を満足する
請求項1又は7に記載の光照射装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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JP2019239820 | 2019-12-27 | ||
JP2019239820 | 2019-12-27 | ||
PCT/JP2020/042202 WO2021131376A1 (ja) | 2019-12-27 | 2020-11-12 | 光照射装置及び発光モジュール |
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JPWO2021131376A1 JPWO2021131376A1 (ja) | 2021-07-01 |
JPWO2021131376A5 JPWO2021131376A5 (ja) | 2022-05-11 |
JP7217367B2 true JP7217367B2 (ja) | 2023-02-02 |
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US (1) | US11629827B2 (ja) |
JP (1) | JP7217367B2 (ja) |
CN (1) | CN114829196B (ja) |
WO (1) | WO2021131376A1 (ja) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2007280735A (ja) | 2006-04-05 | 2007-10-25 | Matsushita Electric Works Ltd | 照明装置並びに照明システム |
JP2014017188A (ja) | 2012-07-11 | 2014-01-30 | Mitsubishi Electric Corp | 防犯灯 |
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JP2009286198A (ja) * | 2008-05-27 | 2009-12-10 | Koito Mfg Co Ltd | 歩行者照射用照明装置および車両用前照灯装置 |
JP2012028272A (ja) * | 2010-07-27 | 2012-02-09 | Panasonic Electric Works Co Ltd | 照明装置 |
JP2013109911A (ja) * | 2011-11-18 | 2013-06-06 | Stanley Electric Co Ltd | 照明装置 |
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JP2014017114A (ja) * | 2012-07-09 | 2014-01-30 | Panasonic Corp | 照明システム |
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