FR2486200A1 - Reflecteur concave et lampe comprenant un tel reflecteur - Google Patents
Reflecteur concave et lampe comprenant un tel reflecteur Download PDFInfo
- Publication number
- FR2486200A1 FR2486200A1 FR8112500A FR8112500A FR2486200A1 FR 2486200 A1 FR2486200 A1 FR 2486200A1 FR 8112500 A FR8112500 A FR 8112500A FR 8112500 A FR8112500 A FR 8112500A FR 2486200 A1 FR2486200 A1 FR 2486200A1
- Authority
- FR
- France
- Prior art keywords
- section
- parabolic
- reflector
- reflected
- spherical
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/28—Envelopes; Vessels
-
- 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
- F21S41/33—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature
- F21S41/331—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of complete annular areas
- F21S41/333—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of complete annular areas with discontinuity at the junction between adjacent areas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/04—Optical design
- F21V7/09—Optical design with a combination of different curvatures
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Optical Elements Other Than Lenses (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16561080A | 1980-07-03 | 1980-07-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2486200A1 true FR2486200A1 (fr) | 1982-01-08 |
Family
ID=22599643
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8112500A Withdrawn FR2486200A1 (fr) | 1980-07-03 | 1981-06-25 | Reflecteur concave et lampe comprenant un tel reflecteur |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS5730801A (de) |
CA (1) | CA1172682A (de) |
DE (1) | DE3125168C2 (de) |
FR (1) | FR2486200A1 (de) |
GB (1) | GB2079435B (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2496841A1 (fr) * | 1980-12-22 | 1982-06-25 | Gen Electric | Lampe a reflecteur et optique profiles |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
HU191444B (en) * | 1984-09-21 | 1987-02-27 | Tungsram Rt,Hu | Reflector lamp |
EP0519112B1 (de) * | 1991-06-21 | 1996-03-13 | Tetsuhiro Kano | Reflektor und Verfahren zum Erzeugen einer Reflektorform |
JP2601713Y2 (ja) * | 1992-03-13 | 1999-12-06 | 株式会社キャットアイ | 照明装置 |
US5586015A (en) * | 1993-06-18 | 1996-12-17 | General Electric Company | Sports lighting luminaire having low glare characteristics |
GB2290132A (en) * | 1994-05-31 | 1995-12-13 | Rank Brimar Ltd | Light Sources |
JP2001201623A (ja) * | 2000-01-20 | 2001-07-27 | Fujitsu General Ltd | 照明光源装置 |
JP4563557B2 (ja) * | 2000-07-18 | 2010-10-13 | 株式会社トプコン | 露光装置の照明光学系 |
DE102017100945B4 (de) | 2017-01-18 | 2019-06-27 | LIMO GmbH | Linsenvorrichtung oder Spiegelvorrichtung sowie Vorrichtung zur Homogenisierung von Licht |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB344382A (en) * | 1929-11-22 | 1931-03-23 | Harold Dennis Taylor | An improvement in lamps for motor or other vehicles, and for other purposes |
GB367053A (en) * | 1930-11-21 | 1932-02-18 | Harold Dennis Taylor | An improvement in lamps for motor and other vehicles and for other purposes |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB314545A (en) * | 1928-06-30 | 1930-07-24 | Machal Projecteurs | Improvements in or relating to vehicle and like lamps |
JPS4020132Y1 (de) * | 1964-04-15 | 1965-07-13 | ||
JPS422233Y1 (de) * | 1964-10-02 | 1967-02-09 |
-
1981
- 1981-06-10 GB GB8117852A patent/GB2079435B/en not_active Expired
- 1981-06-25 FR FR8112500A patent/FR2486200A1/fr not_active Withdrawn
- 1981-06-25 JP JP9762581A patent/JPS5730801A/ja active Pending
- 1981-06-26 DE DE3125168A patent/DE3125168C2/de not_active Expired
- 1981-07-03 CA CA000381080A patent/CA1172682A/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB344382A (en) * | 1929-11-22 | 1931-03-23 | Harold Dennis Taylor | An improvement in lamps for motor or other vehicles, and for other purposes |
GB367053A (en) * | 1930-11-21 | 1932-02-18 | Harold Dennis Taylor | An improvement in lamps for motor and other vehicles and for other purposes |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2496841A1 (fr) * | 1980-12-22 | 1982-06-25 | Gen Electric | Lampe a reflecteur et optique profiles |
Also Published As
Publication number | Publication date |
---|---|
GB2079435A (en) | 1982-01-20 |
GB2079435B (en) | 1984-05-23 |
CA1172682A (en) | 1984-08-14 |
DE3125168A1 (de) | 1982-03-04 |
JPS5730801A (en) | 1982-02-19 |
DE3125168C2 (de) | 1983-07-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |