PT1258846E - Lente de fresnel segmentada - Google Patents
Lente de fresnel segmentadaInfo
- Publication number
- PT1258846E PT1258846E PT02010315T PT02010315T PT1258846E PT 1258846 E PT1258846 E PT 1258846E PT 02010315 T PT02010315 T PT 02010315T PT 02010315 T PT02010315 T PT 02010315T PT 1258846 E PT1258846 E PT 1258846E
- Authority
- PT
- Portugal
- Prior art keywords
- segments
- fresnel lens
- segmented
- lens
- band
- Prior art date
Links
- 239000012141 concentrate Substances 0.000 abstract 1
- 238000001514 detection method Methods 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 abstract 1
- 230000005855 radiation Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
- G08B13/19—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using infrared-radiation detection systems
- G08B13/193—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using infrared-radiation detection systems using focusing means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Lenses (AREA)
- Optical Couplings Of Light Guides (AREA)
- Inorganic Insulating Materials (AREA)
- Geophysics And Detection Of Objects (AREA)
- Securing Globes, Refractors, Reflectors Or The Like (AREA)
- Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2001MI001024A ITMI20011024A1 (it) | 2001-05-17 | 2001-05-17 | Lente di fresnel segmentata |
Publications (1)
Publication Number | Publication Date |
---|---|
PT1258846E true PT1258846E (pt) | 2005-04-29 |
Family
ID=11447684
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PT02010315T PT1258846E (pt) | 2001-05-17 | 2002-05-07 | Lente de fresnel segmentada |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1258846B1 (it) |
AT (1) | ATE284563T1 (it) |
DE (1) | DE60202167T2 (it) |
ES (1) | ES2233741T3 (it) |
IT (1) | ITMI20011024A1 (it) |
PT (1) | PT1258846E (it) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10663628B1 (en) | 2018-06-11 | 2020-05-26 | Toyota Motor Engineering & Manufacturing North America, Inc. | Cloaking devices with fresnel mirrors and plane mirrors and vehicles comprising the same |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69101002T2 (de) * | 1990-10-29 | 1994-05-05 | Teknox Srl | Infraroter Anwesenheitsdetektor. |
US5442178A (en) * | 1994-03-18 | 1995-08-15 | Hubbell Incorporated | Cross-over field-of-view composite Fresnel lens for an infrared detection system |
-
2001
- 2001-05-17 IT IT2001MI001024A patent/ITMI20011024A1/it unknown
-
2002
- 2002-05-07 EP EP02010315A patent/EP1258846B1/en not_active Expired - Lifetime
- 2002-05-07 DE DE60202167T patent/DE60202167T2/de not_active Expired - Lifetime
- 2002-05-07 PT PT02010315T patent/PT1258846E/pt unknown
- 2002-05-07 AT AT02010315T patent/ATE284563T1/de not_active IP Right Cessation
- 2002-05-07 ES ES02010315T patent/ES2233741T3/es not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP1258846A2 (en) | 2002-11-20 |
EP1258846B1 (en) | 2004-12-08 |
ITMI20011024A1 (it) | 2002-11-17 |
DE60202167D1 (de) | 2005-01-13 |
EP1258846A3 (en) | 2003-05-21 |
ATE284563T1 (de) | 2004-12-15 |
ITMI20011024A0 (it) | 2001-05-17 |
ES2233741T3 (es) | 2005-06-16 |
DE60202167T2 (de) | 2005-12-08 |
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