JPH0418403B2 - - Google Patents
Info
- Publication number
- JPH0418403B2 JPH0418403B2 JP62272570A JP27257087A JPH0418403B2 JP H0418403 B2 JPH0418403 B2 JP H0418403B2 JP 62272570 A JP62272570 A JP 62272570A JP 27257087 A JP27257087 A JP 27257087A JP H0418403 B2 JPH0418403 B2 JP H0418403B2
- Authority
- JP
- Japan
- Prior art keywords
- light distribution
- distribution pattern
- reflecting mirror
- light
- pattern
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
- 230000003287 optical effect Effects 0.000 claims description 19
- 230000015572 biosynthetic process Effects 0.000 claims description 17
- 238000010586 diagram Methods 0.000 description 10
- 238000009792 diffusion process Methods 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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
- F21S41/60—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
-
- 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
- F21S41/162—Incandescent light sources, e.g. filament or halogen lamps
- F21S41/164—Incandescent light sources, e.g. filament or halogen lamps having two or more filaments
-
- 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
- F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
- F21S41/32—Optical layout thereof
- F21S41/321—Optical layout thereof the reflector being a surface of revolution or a planar surface, e.g. truncated
-
- 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
- F21S41/323—Optical layout thereof the reflector having two perpendicular cross sections having regular geometrical curves of a distinct nature
-
- 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
- F21S41/36—Combinations of two or more separate reflectors
-
- 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
- F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
- F21S41/43—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades characterised by the shape 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62272570A JPH01115001A (ja) | 1987-10-28 | 1987-10-28 | 車輌用前照灯 |
US07/263,579 US4885669A (en) | 1987-10-28 | 1988-10-26 | Headlight device for vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62272570A JPH01115001A (ja) | 1987-10-28 | 1987-10-28 | 車輌用前照灯 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH01115001A JPH01115001A (ja) | 1989-05-08 |
JPH0418403B2 true JPH0418403B2 (US08088816-20120103-C00036.png) | 1992-03-27 |
Family
ID=17515750
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62272570A Granted JPH01115001A (ja) | 1987-10-28 | 1987-10-28 | 車輌用前照灯 |
Country Status (2)
Country | Link |
---|---|
US (1) | US4885669A (US08088816-20120103-C00036.png) |
JP (1) | JPH01115001A (US08088816-20120103-C00036.png) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2591094B2 (ja) * | 1988-08-23 | 1997-03-19 | 市光工業株式会社 | 自動車用前照灯 |
JPH0658761B2 (ja) * | 1988-11-08 | 1994-08-03 | 株式会社小糸製作所 | 前照灯用反射鏡 |
US5055981A (en) * | 1989-02-17 | 1991-10-08 | Koito Manufacturing Co., Ltd. | Automotive projector type headlight |
US5023758A (en) * | 1989-11-13 | 1991-06-11 | General Electric Company | Single arc discharge headlamp with light switch for high/low beam operation |
DE19727982A1 (de) * | 1997-07-01 | 1999-01-07 | Hella Kg Hueck & Co | Leuchte für Fahrzeuge |
US6488395B2 (en) * | 1998-01-30 | 2002-12-03 | Federal-Mogul World Wide, Inc. | Low profile lighting |
JP3966982B2 (ja) * | 1998-02-17 | 2007-08-29 | 株式会社小糸製作所 | 車輌用標識灯 |
DE19860669B4 (de) * | 1998-12-29 | 2007-08-23 | Automotive Lighting Reutlingen Gmbh | Fahrzeugscheinwerfer nach dem Projektionsprinzip |
EP1195552B1 (en) * | 2000-10-06 | 2008-02-20 | Stanley Electric Co., Ltd. | Headlamp |
FR2844867B1 (fr) * | 2002-09-20 | 2005-07-08 | Valeo Vision | Dispositif projecteur de vehicule automobile a miroir et element de deviation conjugues avec coupure non plate |
FR2849159B1 (fr) * | 2002-12-24 | 2005-02-18 | Valeo Vision | Projecteur a source lumineuse transversale pour vehicule automobile |
US7625109B2 (en) * | 2005-06-30 | 2009-12-01 | Koito Manufacturing Co., Ltd. | Vehicle lamp |
JP2008041557A (ja) * | 2006-08-09 | 2008-02-21 | Ichikoh Ind Ltd | 車両用前照灯用の灯具ユニット |
DE202007013205U1 (de) * | 2007-07-26 | 2008-12-11 | Erco Leuchten Gmbh | Leuchte |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5868801A (ja) * | 1981-09-29 | 1983-04-23 | ロ−ベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | 前照灯 |
JPS59134501A (ja) * | 1983-01-21 | 1984-08-02 | 市光工業株式会社 | 自動車用前照灯 |
JPS62216102A (ja) * | 1986-03-17 | 1987-09-22 | 株式会社小糸製作所 | 車輌用前照灯 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU505317B2 (en) * | 1976-08-23 | 1979-11-15 | Thorn Electrical Industries Limited | Suppression of colour fringing in lamps |
GB2000266B (en) * | 1977-06-17 | 1982-01-27 | Lucas Industries Ltd | Lamp reflector for a motor vehicle |
FR2503832B1 (fr) * | 1981-04-14 | 1986-04-04 | Cibie Projecteurs | Projecteur de vehicule automobile a fenetre de sortie etroite |
JPS5851503U (ja) * | 1981-10-05 | 1983-04-07 | トヨタ自動車株式会社 | 車両用前照燈 |
DE3226580A1 (de) * | 1981-12-08 | 1983-06-16 | Robert Bosch Gmbh, 7000 Stuttgart | Scheinwerfer fuer kraftfahrzeuge |
US4481563A (en) * | 1982-05-10 | 1984-11-06 | Corning Glass Works | Automotive headlight having optics in the reflector |
DE3218702C2 (de) * | 1982-05-18 | 1987-01-29 | Hella KG Hueck & Co, 4780 Lippstadt | Fahrzeugscheinwerfer |
US4498124A (en) * | 1982-06-28 | 1985-02-05 | Stewart-Warner Corporation | Dual halogen lamp assembly |
HU191444B (en) * | 1984-09-21 | 1987-02-27 | Tungsram Rt,Hu | Reflector lamp |
FR2580782B1 (fr) * | 1985-04-22 | 1987-07-10 | Cibie Projecteurs | Projecteur de route pour vehicule automobile incorporant un reflecteur elliptique et un reflecteur parabolique |
DE3525041C2 (de) * | 1985-07-13 | 1994-06-16 | Bosch Gmbh Robert | Abblendlicht-oder Nebellichtscheinwerfer für Kraftfahrzeuge |
DE3531223A1 (de) * | 1985-08-31 | 1987-03-05 | Bosch Gmbh Robert | Scheinwerfer, insbesondere rechteckscheinwerfer, fuer abblendlicht von kraftfahrzeugen |
US4704661A (en) * | 1986-08-25 | 1987-11-03 | General Electric Company | Faceted reflector for headlamps |
-
1987
- 1987-10-28 JP JP62272570A patent/JPH01115001A/ja active Granted
-
1988
- 1988-10-26 US US07/263,579 patent/US4885669A/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5868801A (ja) * | 1981-09-29 | 1983-04-23 | ロ−ベルト・ボツシユ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | 前照灯 |
JPS59134501A (ja) * | 1983-01-21 | 1984-08-02 | 市光工業株式会社 | 自動車用前照灯 |
JPS62216102A (ja) * | 1986-03-17 | 1987-09-22 | 株式会社小糸製作所 | 車輌用前照灯 |
Also Published As
Publication number | Publication date |
---|---|
US4885669A (en) | 1989-12-05 |
JPH01115001A (ja) | 1989-05-08 |
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